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Universitat de Valencia
1.
Blasco Conesa, María Pilar.
Interés taxonómico de los caracteres micromorfológicos en el género Chaenorhinum (DC.) Rchb. (Plantaginaceae)
.
Degree: 2017, Universitat de Valencia
URL: http://hdl.handle.net/10550/60429
► TEMA: El objeto de la tesis se enmarca en un tema más amplio en el que el grupo de investigación trabaja, en el que se…
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▼ TEMA:
El objeto de la tesis se enmarca en un tema más amplio en el que el grupo de investigación trabaja, en el que se analizan los caracteres morfológicos y los procesos de especiación de las Antirrhineae del Viejo Mundo, junto con sus implicaciones en la conservación de las especies amenazadas.
OBJETIVOS:
1. Profundizar en el conocimiento morfológico de las especies ibéricas perennes y así contrastar los tratamientos previos:
• Grupo de Chaenorhinum origanifolium;
• Grupo de Chaenorhinum macropodum;
• Grupo de Chaenorhinum villosum;
• Especies gipsófilas de Chaenorhinum.
2. Sentar las bases morfológicas para la diferenciación de los táxones conflictivos o dudosos del género Chaenorhinum, para poder abordar sobre ellas futuros estudios sistemáticos o filogenéticos basados en los caracteres moleculares.
3. Comprobar la utilidad de los caracteres micromorfológicos para la descripción de nuevas especies.
METODOLOGIA:
Material.
Las especies seleccionadas del género Chaenorhinum son todas las perennes, originarias del Mediterráneo occidental y la mayoría endémicas de la Península Ibérica.
El material estudiado procede tanto de muestras procedentes del material seco cedido por varios herbarios, como de material fresco procedente de recolecciones propias efectuadas directamente en el campo.
Los estudios morfológicos de semillas y tricomas se han realizado sobre 3-6 poblaciones por taxón, teniéndose en cuenta que las poblaciones estuvieran repartidas por toda el área de distribución de cada taxon.
Técnicas de observación.
Se recurre al análisis morfológico de los caracteres diferenciales para poder establecer los grupos de estudio en función de las ordenaciones previas realizadas sobre el género. La dificultad de encontrar caracteres macromorfológicos que nos permitan diferenciar los distintos táxones nos obliga al estudio de los caracteres micromorfológicos: tricomas e indumento, y la ornamentación de las semillas, que han demostrado ser de gran utilidad en estudios previos realizados en el género.
Las técnicas de observación empleadas son:
Microscopía esteroscópica: nos ha permitido tomar las medidas de los ejes mayores de las semillas, así como observar su forma y la ornamentación de sus crestas. Nos ha proporcionado también, la visión de la superficie de las plantas a escaso aumento y, al ser un medio de observación directa que no precisaba de la preparación previa del material, hemos podido estudiar muchos individuos en poco tiempo.
Microscopía óptica: se ha utilizado para medir los tricomas, así como para ver su forma, y el número, forma y disposición de las células que los componen.
Microscopía electrónica de barrido: nos ha permitido observar la forma y la ornamentación superficial de las semillas y tomar las medidas de sus elementos, así como apreciar el indumento y la forma y ornamentación de los tricomas.
El estudio de las semillas se realizó sobre semillas secas, maduras y bien formadas sin tratamiento previo para apreciar la ornamentación externa de la epicutícula.…
Advisors/Committee Members: Güemes Heras, Jaime (advisor).
Subjects/Keywords: chaenorhinum;
plantaginaceae;
micromorfología;
Ch. serpentinum;
Ch. gamezii;
taxonomía;
flora mediterránea;
botánica
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APA ·
Chicago ·
MLA ·
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APA (6th Edition):
Blasco Conesa, M. P. (2017). Interés taxonómico de los caracteres micromorfológicos en el género Chaenorhinum (DC.) Rchb. (Plantaginaceae)
. (Doctoral Dissertation). Universitat de Valencia. Retrieved from http://hdl.handle.net/10550/60429
Chicago Manual of Style (16th Edition):
Blasco Conesa, María Pilar. “Interés taxonómico de los caracteres micromorfológicos en el género Chaenorhinum (DC.) Rchb. (Plantaginaceae)
.” 2017. Doctoral Dissertation, Universitat de Valencia. Accessed March 04, 2021.
http://hdl.handle.net/10550/60429.
MLA Handbook (7th Edition):
Blasco Conesa, María Pilar. “Interés taxonómico de los caracteres micromorfológicos en el género Chaenorhinum (DC.) Rchb. (Plantaginaceae)
.” 2017. Web. 04 Mar 2021.
Vancouver:
Blasco Conesa MP. Interés taxonómico de los caracteres micromorfológicos en el género Chaenorhinum (DC.) Rchb. (Plantaginaceae)
. [Internet] [Doctoral dissertation]. Universitat de Valencia; 2017. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10550/60429.
Council of Science Editors:
Blasco Conesa MP. Interés taxonómico de los caracteres micromorfológicos en el género Chaenorhinum (DC.) Rchb. (Plantaginaceae)
. [Doctoral Dissertation]. Universitat de Valencia; 2017. Available from: http://hdl.handle.net/10550/60429

Ruhr Universität Bochum
2.
Kupfer, Kristin.
Emergence and development of spiritual-religious groups
in the Peoples Republic of China after 1978.
Degree: 2009, Ruhr Universität Bochum
URL: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-29462
► Charismatische Anführer, geheime Netzwerke und eschantologische Lehren - spirituell-religiöse Gruppierungen finden seit 1978 in der Volksrepublik mehr und mehr Anhänger. Die chinesische Regierung verfolgt sie…
(more)
▼ Charismatische Anführer, geheime Netzwerke und
eschantologische Lehren - spirituell-religiöse Gruppierungen finden
seit 1978 in der Volksrepublik mehr und mehr Anhänger. Die
chinesische Regierung verfolgt sie als "häretische Lehren". Diese
Studie vergleicht die Entstehung und Entwicklung
christlich-inspirierter und Qigong-basierter Gruppen. Dazu
analysiert sie ihre ideellen, organisatorischen und
aktions-orientierten Ressourcen. Anschließend werden die
Interaktionen zwischen den Gruppen, Staatsorganen und sozialen
Akteuren betrachtet. Die Fähigkeit der Gruppenführer von der
chinesischen Regierung aufgegebene oder verlorene Ressourcen neu
zumobilisieren, benennt die Studie als Kernelemente für die
Entstehung der Gruppen. Zu diesen gehören soziale
Sicherungsangebote, paternalistische Führung und gemeinschaftliche
Geborgenheit. Die Einbindung von Leiden in die Lehren und
risikobereite Anhänger haben zur erfolgreichen Entwicklung von
Gruppen beigetragen.
Advisors/Committee Members: Ostasienwissenschaft.
Subjects/Keywords: China; Religion; Christentum; Chi-kung;
Politik
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kupfer, K. (2009). Emergence and development of spiritual-religious groups
in the Peoples Republic of China after 1978. (Thesis). Ruhr Universität Bochum. Retrieved from http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-29462
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kupfer, Kristin. “Emergence and development of spiritual-religious groups
in the Peoples Republic of China after 1978.” 2009. Thesis, Ruhr Universität Bochum. Accessed March 04, 2021.
http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-29462.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kupfer, Kristin. “Emergence and development of spiritual-religious groups
in the Peoples Republic of China after 1978.” 2009. Web. 04 Mar 2021.
Vancouver:
Kupfer K. Emergence and development of spiritual-religious groups
in the Peoples Republic of China after 1978. [Internet] [Thesis]. Ruhr Universität Bochum; 2009. [cited 2021 Mar 04].
Available from: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-29462.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kupfer K. Emergence and development of spiritual-religious groups
in the Peoples Republic of China after 1978. [Thesis]. Ruhr Universität Bochum; 2009. Available from: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-29462
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Newcastle
3.
Khan, Naseer Ahmed.
Selective oxidation of methane with nitrous oxide over cobalt catalyst.
Degree: PhD, 2016, University of Newcastle
URL: http://hdl.handle.net/1959.13/1312052
► Research Doctorate - Doctor of Philosophy (PhD)
In spite of the highly fluctuating oil prices seen over the past number of years, the availability of…
(more)
▼ Research Doctorate - Doctor of Philosophy (PhD)
In spite of the highly fluctuating oil prices seen over the past number of years, the availability of relatively inexpensive sources of liquid hydrocarbons is diminishing, and the development of economically and environmentally viable alternative technologies to supply these hydrocarbons is vital. Projecting into the short and mid-term futures, the world economy is expected to continue to depend on hydrocarbon resources for stability, and thus technologies to produce these resources are important. Synthesis gas (CO and H₂), can be produced from a number of sources and feedstocks, such as biomass, waste and natural gas, and synthesis gas can be converted into liquid fuels such as hydrocarbons and alcohols, which are currently produced in large quantities in the conventional petrochemical industry. The selective oxidation of hydrocarbons, and in particular natural gas of which CH₄ the primary constituent, is notoriously difficult to control, mainly due to propensity of the reaction to generate to products of complete combustion. N₂O is a potent greenhouse gas (CO₂(e) = 300) and its concentration in the atmosphere is continuously increasing [Lee, Ryu et al, International Journal of Greenhouse Gas Control, January 2011, Pages 167–176]. Despite its greenhouse gas notoriety, N₂O is also recognised as a more selective oxidant than O₂ and has been used to selectively oxidise CH₄ to produce valuable products including synthesis gas. The production of synthesis gas, via its reaction with N₂O could be beneficial environmentally, as it could be used to provide valuable products when used to reaction with natural gas. The main aim of this research work is to investigate the scope of selective oxidation of natural gas (mainly CH₄) with N₂O over cobalt catalysts. The catalytic work was carried out in a continuous flow fixed bed micro reactor. Catalysts were prepared according to literature methods, as well as a new novel deposition method. The techniques used for catalyst characterization were powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), In situ Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption/desorption isotherms, temperature program desorption (TPD), chemisorption, transmission electron microscopy (TEM). The elemental composition of catalyst samples was determined by using inductively coupled plasma optical emission spectrometer (ICP-OES). Based upon the experimental results obtained, the oxidation of CH₄ with N₂O over cobalt exchanged ZSM-5 (Co-ZSM-5) catalyst produced synthesis gas at a relatively high yield (19 %). When O₂ (instead of N₂O) was used as an oxidant over Co-ZSM-5 catalyst, synthesis gas was not formed. Similarly, when CH₄ and N₂O reacted over a cobalt on alumina catalyst, synthesis gas was not produced. Interestingly, H₂ was not detected as a reaction product when CH₄ with N₂O reacted over a Fe-ZSM-5 catalyst and only COx and H₂O were formed. The effect of the molar feed ratio (N₂O/CH₄ = 1, 3, and 5) was…
Advisors/Committee Members: University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering.
Subjects/Keywords: CH₄; N₂O; Co-ZSM-5
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Khan, N. A. (2016). Selective oxidation of methane with nitrous oxide over cobalt catalyst. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1312052
Chicago Manual of Style (16th Edition):
Khan, Naseer Ahmed. “Selective oxidation of methane with nitrous oxide over cobalt catalyst.” 2016. Doctoral Dissertation, University of Newcastle. Accessed March 04, 2021.
http://hdl.handle.net/1959.13/1312052.
MLA Handbook (7th Edition):
Khan, Naseer Ahmed. “Selective oxidation of methane with nitrous oxide over cobalt catalyst.” 2016. Web. 04 Mar 2021.
Vancouver:
Khan NA. Selective oxidation of methane with nitrous oxide over cobalt catalyst. [Internet] [Doctoral dissertation]. University of Newcastle; 2016. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1959.13/1312052.
Council of Science Editors:
Khan NA. Selective oxidation of methane with nitrous oxide over cobalt catalyst. [Doctoral Dissertation]. University of Newcastle; 2016. Available from: http://hdl.handle.net/1959.13/1312052
4.
Giarracca, Lucia.
Impact of lignocellulosic biofuels on NOx formation in premixed laminar flames : Impact de l’oxydation des biocarburants lignocellulosiques sur la formation des oxydes d'azote dans les flammes laminaires prémélangées.
Degree: Docteur es, Energétique, thermique, combustion, 2018, Université Lille I – Sciences et Technologies
URL: http://www.theses.fr/2018LIL1R059
► Les objectifs de ce travail portent sur le rôle de l'oxydation de biocarburants lignocellulosiques dans la cinétique de formation des oxydes d'azote. Le choix s’est…
(more)
▼ Les objectifs de ce travail portent sur le rôle de l'oxydation de biocarburants lignocellulosiques dans la cinétique de formation des oxydes d'azote. Le choix s’est porté sur le furane (F) et le tétrahydrofurane (THF). Cette thèse a permis d’acquérir une base de données expérimentales détaillée afin de tester des mécanismes cinétiques d'oxydation de ces biocarburants disponibles dans la littérature ainsi que d’évaluer leur aptitude à prévoir la formation de CH initiateur du NO précoce. Six flammes laminaires prémélangées à basse pression (5.3 kPa) ont été étudiées à deux richesses (1,0 et 1,2). Trois combustibles ont été considérés: (i) le méthane pur utilisé comme référence, (ii) un mélange F (50%)/méthane (50%), et (iii) un mélange THF (50%)/méthane (50%) pour évaluer l'impact de ces biocarburants sur la formation de NO. Les profils de fraction molaire des espèces sont été déterminés par chromatographie en phase gaz couplée à des détecteurs FID/TCD/MS. Les profils de fraction molaire du NO et du radical CH ont été mesurés par Fluorescence Induite par Laser (LIF). Les résultats expérimentaux montrent que la différence de structure moléculaire de ces éthers cycliques induit des différences significatives dans la formation des espèces intermédiaires issues de leur oxydation. Ainsi, l'oxydation de F favorise la formation de CH et donc la production de NO par rapport aux flammes de méthane et de THF. Les profils expérimentaux ont été comparés aux profils simulés par deux modèles cinétiques, indiquant que ces mécanismes nécessitent d’être optimisés sur la formation de CH avant d’envisager l’introduction d’un sous-mécanisme relatif à la chimie de l’azote.
The objective of this work is to investigate the role of oxidation of lignocellulosic biofuels in the formation of nitrogen oxides (NOx) in flames. The biofuels chosen are furan (F) and tetrahydrofuran (THF). This thesis enabled to acquire a detailed experimental database in order to test the kinetic mechanisms available in literature of the oxidation of these biofuels as well as to evaluate their ability to predict the formation of CH, the key species on the prompt-NO mechanism. Six premixed low-pressure laminar flames (5.3 kPa) were studied under two equivalent ratio conditions (1,0 et 1,2). Three fuels are considered: (i) pure methane, which is used as a reference flame, (ii) a F (50%)/methane (50%) mixture, and (iii) THF (50%)/methane (50%) in order to evaluate the impact of these biofuels on NOx formation. The structure of these flames was characterized by establishing the mole fraction profiles of stable intermediates and products using gas chromatography coupled with FID/TCD/MS detectors. The mole fraction profiles of NO and CH radical were detected by Laser Induced Fluorescence (LIF). The experimental results show that the different molecular structures of these cyclic ethers leads to significant differences in the formation of intermediate species and pollutants. Thus, F oxidation promotes the CH formation and then the NO with respect to methane and THF. The…
Advisors/Committee Members: Desgroux, Pascale (thesis director), Gasnot, Laurent (thesis director).
Subjects/Keywords: Flammes laminaires prémélangées; Radical CH; 541.361
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Giarracca, L. (2018). Impact of lignocellulosic biofuels on NOx formation in premixed laminar flames : Impact de l’oxydation des biocarburants lignocellulosiques sur la formation des oxydes d'azote dans les flammes laminaires prémélangées. (Doctoral Dissertation). Université Lille I – Sciences et Technologies. Retrieved from http://www.theses.fr/2018LIL1R059
Chicago Manual of Style (16th Edition):
Giarracca, Lucia. “Impact of lignocellulosic biofuels on NOx formation in premixed laminar flames : Impact de l’oxydation des biocarburants lignocellulosiques sur la formation des oxydes d'azote dans les flammes laminaires prémélangées.” 2018. Doctoral Dissertation, Université Lille I – Sciences et Technologies. Accessed March 04, 2021.
http://www.theses.fr/2018LIL1R059.
MLA Handbook (7th Edition):
Giarracca, Lucia. “Impact of lignocellulosic biofuels on NOx formation in premixed laminar flames : Impact de l’oxydation des biocarburants lignocellulosiques sur la formation des oxydes d'azote dans les flammes laminaires prémélangées.” 2018. Web. 04 Mar 2021.
Vancouver:
Giarracca L. Impact of lignocellulosic biofuels on NOx formation in premixed laminar flames : Impact de l’oxydation des biocarburants lignocellulosiques sur la formation des oxydes d'azote dans les flammes laminaires prémélangées. [Internet] [Doctoral dissertation]. Université Lille I – Sciences et Technologies; 2018. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2018LIL1R059.
Council of Science Editors:
Giarracca L. Impact of lignocellulosic biofuels on NOx formation in premixed laminar flames : Impact de l’oxydation des biocarburants lignocellulosiques sur la formation des oxydes d'azote dans les flammes laminaires prémélangées. [Doctoral Dissertation]. Université Lille I – Sciences et Technologies; 2018. Available from: http://www.theses.fr/2018LIL1R059

University of Illinois – Urbana-Champaign
5.
Mitsingas, Constandinos Miltiadis.
Reactive flow visualization through high-speed optical laser diagnostics.
Degree: PhD, Mechanical Engineering, 2018, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/101758
► Turbulent combustion is a complex phenomenon that involves the interaction between fluid mechanics and chemical kinetics. Turbulence plays an important role in combustion because it…
(more)
▼ Turbulent combustion is a complex phenomenon that involves the interaction between fluid mechanics and chemical kinetics. Turbulence plays an important role in combustion because it ensures a thorough mixing between the oxidizer and fuel at a molecular level. Improper mixing can lead to incomplete combustion, resulting in increased emissions and decreased flame stability. Hence, understanding and controlling the coupling between chemical kinetics and turbulence can lead to significant improvements in the design of combustion systems, improving their stability, efficiency and emissions characteristics.
In this study, a method was demonstrated using temporally-resolved laser diagnostics to visualize: 1) The turbulent flow field with particle image velocimetry (PIV); and 2) the distribution of combustion radicals, by planar laser-induced fluorescence (PLIF). This allows for the visualization of the flame surface behavior, while at the same time linking it to inherent flow and combustion instabilities. Characterizing turbulence requires high temporal resolution and combining it with high-speed combustion radical imaging adds an additional diagnostics challenge. Trying to extend the capabilities of current laser diagnostics techniques to higher repetition rates to achieve the desired temporal resolution in order to resolve turbulence is a major issue due to limitations in terms of laser power scalability with repetition rate. In this work, a new approach is investigated that reduces the overall laser power required to visualize the flame structure (
CH and OH radicals) while allowing for simultaneous flow field imaging at high repetition rates (10 kHz).
A comprehensive study of
CH-PLIF imaging using the of the
CH molecule to visualize the flame reaction zone is presented here. The
CH-PLIF imaging effectiveness and its suitability for use in conjunction with PIV were quantified using a laminar Bunsen flame. Due to the high Einstein coefficients, the Q-branch rotational excitation strategy has the lowest laser power requirements and hence is best suited for high-speed imaging. However, isolating the fluorescence signal from the excitation wavelength is a major concern especially in high-scattering environments, due to the inherent resonant transition that is observed in the Q-branch excitation strategy.
To address this, the excitation scheme was switched to the weaker (by a factor of 5) R-branch transition, whose fluorescence signal proved to be sufficient for
CH-imaging, with separation of the fluorescence and excitation wavelengths through the use of a custom-made sharp cut-off edge filter. The low laser pulse energy requirements of this transition combined with the use of the custom edge filter allowed for simultaneous 10 kHz
CH-PLIF and PIV imaging in a highly turbulent Hi-Pilot burner (ReT ~ 7900). Reaction layer thicknesses were estimated from the
CH-PLIF images, and their interaction with the flow field was observed. Folding of the flame sheet caused an interaction between the out-of-plane and in-plane flame…
Advisors/Committee Members: Lee, Tonghun (advisor), Lee, Tonghun (Committee Chair), Bodony, Daniel (committee member), Bahl, Gaurav (committee member), Chamorro, Leonardo (committee member).
Subjects/Keywords: High-speed; laser diagnostics; CH-PLIF; Combustion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mitsingas, C. M. (2018). Reactive flow visualization through high-speed optical laser diagnostics. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/101758
Chicago Manual of Style (16th Edition):
Mitsingas, Constandinos Miltiadis. “Reactive flow visualization through high-speed optical laser diagnostics.” 2018. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 04, 2021.
http://hdl.handle.net/2142/101758.
MLA Handbook (7th Edition):
Mitsingas, Constandinos Miltiadis. “Reactive flow visualization through high-speed optical laser diagnostics.” 2018. Web. 04 Mar 2021.
Vancouver:
Mitsingas CM. Reactive flow visualization through high-speed optical laser diagnostics. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2018. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2142/101758.
Council of Science Editors:
Mitsingas CM. Reactive flow visualization through high-speed optical laser diagnostics. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2018. Available from: http://hdl.handle.net/2142/101758
6.
Nawfal, Mira.
Valorisation catalytique du biogaz pour une énergie propre et renouvelable : Catalytic biogas upgrading for a clean and renewable energy.
Degree: Docteur es, Chimie, 2015, Littoral
URL: http://www.theses.fr/2015DUNK0392
► Cette étude concerne la formation d'hydrogène par le procédé de vaporeformage et la production de gaz de synthèse par le procédé de reformage à sec,…
(more)
▼ Cette étude concerne la formation d'hydrogène par le procédé de vaporeformage et la production de gaz de synthèse par le procédé de reformage à sec, au moyen de catalyseurs tout en augmentant la résistance à la formation de coke. Sept oxydes mixtes NiₓMg₆₋ₓAl₂ 800 (0 ≤ x ≤ 6) ont été obtenus, en passant par la voie hydrotalcite suivie d'une calcination à 800°C. L'espèce active dans les deux réactions étudiées est le nickel métallique. Une partie de ces oxydes a été imprégnée par 0,5 % en masse de ruthénium et recalcinée à 800°C, puisque le ruthénium améliore la réductibilité des espèces oxydes de nickel. Dans le procédé de vaporeformage et en abscence de ruthénium, le prétraitement réducteur est une étape nécessaire pour activer le catalyseur. L'ajout du ruthénium améliore l'activité catalytique, la sélectivité et la résistance à la formation de coke des oxydes étudiés et ceci en abscence de prétraitement réducteur avant test. Une interaction ruthénium-nickel serait à l'origine de ces bonnes performances catalytiques. Le catalyseur Ru/Ni₆Al₂ 800 800 présente les meilleures performances catalytiques, parmi les systèmes étudiés, puisqu'il assure une meilleure interaction Ru-Ni.
This study is related to the formation of hydrogen by the steam reforming process and the production of synthesis gas by the dry reforming process, using catalysts, leading to increased resistance to coke formation. Seven mixed oxides NiₓMg₆₋ₓAl₂ 800 (0 ≤ x ≤ 6) were obtained, by hydrotalcite route followed by calcination at 800°C. Metallic nickel is the active species in both studied reactions. Some of these oxides have been impregnated with 0.5 wt % of ruthenium and recalcined at 800°C. In steam reforming test and in absence of ruthenium, the reducing pretreatment step is necessary to activate the catalyst. Ruthenium addition improves the catalytic activity, selectivity and the resistance to coke formation, with no reducing step prior to the test. An interaction between nickel and ruthenium is in origin of these good catalytic performances since ruthenium improves the reductibility of nickel species. The catalyst Ru/Ni₆Al₂ 800 800 presents the best catalytic performances among the studied systems, because it presents a better Ru-Ni interaction.
Advisors/Committee Members: Abi Aad, Edmond (thesis director), Nsouli, Bilal (thesis director).
Subjects/Keywords: Reformage du CH₄; Nickel; Ruthénium; Hydrotalcite; Coke; CH₄ reforming; Nickel; Ruthenium; Hydrotalcite; Coke
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nawfal, M. (2015). Valorisation catalytique du biogaz pour une énergie propre et renouvelable : Catalytic biogas upgrading for a clean and renewable energy. (Doctoral Dissertation). Littoral. Retrieved from http://www.theses.fr/2015DUNK0392
Chicago Manual of Style (16th Edition):
Nawfal, Mira. “Valorisation catalytique du biogaz pour une énergie propre et renouvelable : Catalytic biogas upgrading for a clean and renewable energy.” 2015. Doctoral Dissertation, Littoral. Accessed March 04, 2021.
http://www.theses.fr/2015DUNK0392.
MLA Handbook (7th Edition):
Nawfal, Mira. “Valorisation catalytique du biogaz pour une énergie propre et renouvelable : Catalytic biogas upgrading for a clean and renewable energy.” 2015. Web. 04 Mar 2021.
Vancouver:
Nawfal M. Valorisation catalytique du biogaz pour une énergie propre et renouvelable : Catalytic biogas upgrading for a clean and renewable energy. [Internet] [Doctoral dissertation]. Littoral; 2015. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2015DUNK0392.
Council of Science Editors:
Nawfal M. Valorisation catalytique du biogaz pour une énergie propre et renouvelable : Catalytic biogas upgrading for a clean and renewable energy. [Doctoral Dissertation]. Littoral; 2015. Available from: http://www.theses.fr/2015DUNK0392

Universidade Nova
7.
Anjos, Andreia Filipa Fontes.
Cultura organizacional e imagem externa. A imposição da mudança numa empresa de consultoria.
Degree: 2015, Universidade Nova
URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/15264
► O principal objectivo deste estudo é compreender a relação entre a mudança imposta actualmente às organizações, que as obriga a adaptar e a modificar a…
(more)
▼ O principal objectivo deste estudo é compreender a relação entre a mudança
imposta actualmente às organizações, que as obriga a adaptar e a modificar a sua
cultura, e a imagem externa.
Para tal, a dissertação estrutura-se em duas partes distintas. Numa primeira
fase, é apresentado um enquadramento teórico, onde se pode contar com o contributo
de diversos autores no que respeita à cultura, mudança e imagem organizacionais. Para
sobreviver num mundo caracterizado pela mudança, as organizações vêem-se
obrigadas a adaptar-se e a moldar a sua cultura aos tempos modernos. Apesar de
necessário, não se trata de um processo rápido ou fácil.
Esta dissertação analisa o conceito de cultura e as suas várias definições, desde
os povos primitivos até à vida de uma organização nos dias de hoje – que deu origem
ao conceito de cultura organizacional. Também o tema mudança é analisado, uma vez
que deixou de ser considerado uma característica para ser entendido como uma
imposição com a qual a organização tem de lidar. A relação entre mudança, cultura e
imagem organizacionais; os factores e razões que justificam a mudança; o seu processo
de gestão; o estudo da resistência à mudança; e a importância e alcance da imagem e
reputação são tópicos desenvolvidos na presente dissertação, tendo por base teorias
de autores.
Na segunda parte da dissertação foi realizado um estudo de caso numa
empresa de consultoria – Grupo CH, que passou recentemente por um processo de
mudança positiva, denominado Destroika. Esta investigação empírica conta com a
análise dos questionários preenchidos por uma amostra da população que viveu todo o
processo de mudança e por uma pesquisa intensa relativa a todos os métodos
implementados na altura. Essencialmente, o estudo de caso propõe-se a analisar e a
desenvolver tópicos como imposição da mudança, resistência humana à mudança;
papel da comunicação; estabilidade vs dinamismo da cultura organizacional;
repercussões da mudança na imagem interna e externa da organização. Com este
estudo de caso, pretende evidenciar-se a importância e o papel da cultura na vida
organizacional, mas também as potencialidades que uma mudança, mesmo que
imposta, pode trazer à imagem de uma organização.
Desta forma, o objectivo principal do estudo de caso é relacionar a mudança
cultural e as suas implicações na imagem do Grupo CH.
Subjects/Keywords: Cultura; Mudança; Imagem; Organização; Grupo CH; Cultura organizacional; Destroika; Culture; Change; Image; Organization; CH Group; Organizational culture
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Anjos, A. F. F. (2015). Cultura organizacional e imagem externa. A imposição da mudança numa empresa de consultoria. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/15264
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Anjos, Andreia Filipa Fontes. “Cultura organizacional e imagem externa. A imposição da mudança numa empresa de consultoria.” 2015. Thesis, Universidade Nova. Accessed March 04, 2021.
http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/15264.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Anjos, Andreia Filipa Fontes. “Cultura organizacional e imagem externa. A imposição da mudança numa empresa de consultoria.” 2015. Web. 04 Mar 2021.
Vancouver:
Anjos AFF. Cultura organizacional e imagem externa. A imposição da mudança numa empresa de consultoria. [Internet] [Thesis]. Universidade Nova; 2015. [cited 2021 Mar 04].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/15264.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Anjos AFF. Cultura organizacional e imagem externa. A imposição da mudança numa empresa de consultoria. [Thesis]. Universidade Nova; 2015. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/15264
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
8.
Franco, Maria Campos Martins.
Os eventos corporativos como ferramenta motivacional: estudo de caso do Grupo CH.
Degree: 2017, RCAAP
URL: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/19725
► Com o decorrer dos anos, o desenvolvimento e o crescimento da área de eventos é cada vez mais notório. Começou a haver a necessidade de…
(more)
▼ Com o decorrer dos anos, o desenvolvimento e o crescimento da área de eventos é cada vez mais notório. Começou a haver a necessidade de reunir pessoas com interesses, em áreas e temas, comuns. Um evento é uma ação planeada que ocorre numa determinada data e local antecipadamente decidido com o intuito de cumprir objetivos também previamente alinhados, por exemplo celebração de uma data ou acontecimento importante, festas populares, ações sociais, acontecimentos desportivos, entre outros.
No sector corporativo, as empresas também sentiram essa necessidade, de estar cada vez mais próximo do consumidor, realizando eventos externos, e cada vez mais perto dos trabalhadores, promovendo eventos internos.
Este trabalho foca-se na área corporativa, especificamente nos eventos internos. Estas ações são realizadas com o intuito de criar ligações entre as pessoas, aumentar e melhorar o espirito de equipa, criar novas estratégias de mercado, celebrar algum ganho importante, motivar, entre outros. A motivação tem sido dos temas mais abordados na área do comportamento organizacional, já que é cada vez mais importante para uma organização que os seus colaboradores se sintam motivados. Este relatório de estágio, surge nesta linha de raciocínio, procurando dar resposta à questão “como é que os eventos internos poderão motivar os colaboradores de uma empresa?” através de um estudo de caso – a empresa de consultoria Grupo CH. Considerada das melhores empresas para trabalhar, de 2011 a 2014, e premiada pela Exame, o Grupo CH promove cerca de cinco a seis eventos internos anualmente. Estes têm como objetivo criar ligação e confiança entre os colaboradores e a empresa. Com estes eventos, pretende-se ainda melhorar os níveis de motivação interna para que a organização atinja o sucesso.
Com base em metodologias qualitativas e quantitativas, tentou-se compreender de que maneiras os eventos que esta organização realiza contribuem para a motivação do trabalhador. Verificou-se que, genericamente, as práticas de promoção da motivação da empresa têm resultados positivos. Existem dois grandes eventos internos que apresentam resultados mais favoráveis à motivação intrínseca e extrínseca dos colaboradores. Apurou-se anda que outros eventos realizados pela organização não fornecem os mesmos resultados e tornam-se pouco interessantes e pouco atrativos aos olhos dos trabalhadores.
Over the years, the development and growth of the events area is increasingly felt. There has been a growing need to gather people with interests in common areas and themes. An event is a planned action that occurs at a specific date and place previously decided, in order to fulfil objectives also previously lined up, for example celebration of a date or important event, festivals, social activities, sporting events, among others.
In the corporate sector, the companies also felt this need to be closer to consumers, conducting external events, and closer to employees, which is the case of internal events.
In this report, our focus is on the corporate area, specifically in…
Advisors/Committee Members: Calisto, Maria de Lurdes.
Subjects/Keywords: Eventos; Eventos corporativos; Motivação; Grupo CH; Events; Corporate events; Motivation; CH group; Domínio/Área Científica::Ciências Sociais
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Franco, M. C. M. (2017). Os eventos corporativos como ferramenta motivacional: estudo de caso do Grupo CH. (Thesis). RCAAP. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/19725
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Franco, Maria Campos Martins. “Os eventos corporativos como ferramenta motivacional: estudo de caso do Grupo CH.” 2017. Thesis, RCAAP. Accessed March 04, 2021.
https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/19725.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Franco, Maria Campos Martins. “Os eventos corporativos como ferramenta motivacional: estudo de caso do Grupo CH.” 2017. Web. 04 Mar 2021.
Vancouver:
Franco MCM. Os eventos corporativos como ferramenta motivacional: estudo de caso do Grupo CH. [Internet] [Thesis]. RCAAP; 2017. [cited 2021 Mar 04].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/19725.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Franco MCM. Os eventos corporativos como ferramenta motivacional: estudo de caso do Grupo CH. [Thesis]. RCAAP; 2017. Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/19725
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Vejedal, Åsa.
Omvårdnadsdokumentation : granskning av omvårdnadsjournaler inom psykiatrisk slutenvård.
Degree: Division of Advanced Nursing, 2011, University West
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-3693
► Background Swedish nurses are required by law to document nursing care. Studies have proved scarce in nursing documentation with regard to written language, the…
(more)
▼ Background Swedish nurses are required by law to document nursing care. Studies have proved scarce in nursing documentation with regard to written language, the nursing process and the nurse´s caring perspective. Educating nurses in using the VIPS model have improved nursing documentation. Few studies have included nursing documentation of psychiatric care.
Aim The aim of this study was to describe nursing documentation within psychiatric care of inpatient settings.
Method A quantitative, retrospective descriptive research design was applied. A total of 60 nursing journals from a psychiatric department of six wards were studied. Data was audited using the Cat-ch-Ing audit instrument that comprises 22 questions reflecting various issues relating to the VIPS model and the nursing process. Measurements of quantity and quality were evaluated for each question using a 4-point scale.
Results The nursing documentation showed a better quantity and quality at the patients’ admission for care than the remaining documentation, long duration of hospital stay indicated better quantity of documented nursing diagnoses and nursing interventions, all of the wards showed a poorly quantitative documentation of status after admission for care as well as nursing care plans.
Conclusion The nursing documentation within psychiatric care of inpatient settings of one department showed an inadequate documentation of nursing both quantitatively and qualitatively. The nursing care of the patient was neither described nor evaluated.
Clinical implications The results suggest that strategies for improving nursing documentation will be needed in the future. In addition, further education in using the VIPS fully can be a means to enhance the nurses’ documentation.
Subjects/Keywords: Cat-ch-Ing; nursing documentation; nursing journals; nursing process; VIPS model; Cat-ch-Ing; omvårdnadsdokumentation; omvårdnadsjournaler; omvårdnadsprocessen; VIPS-modellen
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Vejedal, . (2011). Omvårdnadsdokumentation : granskning av omvårdnadsjournaler inom psykiatrisk slutenvård. (Thesis). University West. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-3693
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Vejedal, Åsa. “Omvårdnadsdokumentation : granskning av omvårdnadsjournaler inom psykiatrisk slutenvård.” 2011. Thesis, University West. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-3693.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vejedal, Åsa. “Omvårdnadsdokumentation : granskning av omvårdnadsjournaler inom psykiatrisk slutenvård.” 2011. Web. 04 Mar 2021.
Vancouver:
Vejedal . Omvårdnadsdokumentation : granskning av omvårdnadsjournaler inom psykiatrisk slutenvård. [Internet] [Thesis]. University West; 2011. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-3693.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vejedal . Omvårdnadsdokumentation : granskning av omvårdnadsjournaler inom psykiatrisk slutenvård. [Thesis]. University West; 2011. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-3693
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
10.
Valero, Mégane.
Iridium-Catalyzed CH-Functionalization : Development and Applications of Innovative Strategies for Hydrogen Isotope Exchange on Small Molecules and Biotherapeutic Drugs for Drug Discovery : Fonctionnalisation de liaisons C-H par catalyse à l'iridium : Développement de nouvelles méthodes pour l'échange d'isotopes d'hydrogène sur des petites molécules et des composés biothérapeutiques.
Degree: Docteur es, Chimie, 2020, université Paris-Saclay
URL: http://www.theses.fr/2020UPASS009
► Le développement de nouvelles méthodes, efficaces, rapides et facile à mettre en œuvre pour le marquage avec du deutérium ou du tritium de composés organiques…
(more)
▼ Le développement de nouvelles méthodes, efficaces, rapides et facile à mettre en œuvre pour le marquage avec du deutérium ou du tritium de composés organiques tels que des médicaments est indispensable dans le secteur industriel comme académique. Ces composés isotopiquement marqués sont essentiels lors des études précliniques. En effet, ces méthodes de marquages permettent d’obtenir plus rapidement les données nécessaires concernant la métabolisation et le profil de sécurité d’un candidat médicament, ce qui permet de réduire le temps investit dans cette recherche. Les méthodes classiques de marquages sont basées sur la synthèse d’un précurseur qui est ensuite marqué isotopiquement puis modifié jusqu’à l’obtention de la structure finale du candidat médicament. Ces anciennes méthodes, coûteuses en temps et en argent et génératrices d’effluents radioactifs, peuvent être évitées par fonctionnalisation sur la structure finale du composé d’intérêt, en particulier par échange d’isotopes d’hydrogène. Au cours de ces travaux de thèse, nous avons développé la première méthode de marquage catalytique à l’iridium dans des conditions douces (température ambiante) sur les motifs dérivés d’acides phenylacetiques tels que esters et amides, motifs très présents dans les structures pharmacologiques. Cette méthode permet d’introduire du deutérium ou du tritium en position ortho du groupement directeur de façon sélective. Lors d’un autre projet, nous avons mis en évidence que la position de marquage au sein d’une molécule avec plusieurs groupements directeurs peut être modulée en fonction du catalyseur d’iridium utilisé ainsi que de la température réactionnelle (de -60°C à +130°C). L’utilisation de calculs de DFT nous a permis de postuler un ordre classifiant différents groupements directeurs par rapport à leur réactivité vis-à-vis de la réaction d’échange d’isotopes d’hydrogène en situation de compétition (deux substrats et un catalyseur d’iridium). Ces données théoriques ont été confirmées par les données expérimentales. Lors d’un autre projet, le marquage sélectif au tritium d’une structure complexe tel qu’un médicament cytotoxique (maytansine DM4) a débouché sur le marquage de différentes chaînes latérales employées dans des méthodes de conjugaison d’anticorps. Ces données ont permis d’étendre cette méthodologie au marquage au deutérium d’acides aminés et de di-tri et tétra-peptide, sélectivement sur le carbone alpha d’un résidu glycine. Finalement, en collaboration avec le CEA-Saclay et le CNRS, nous avons développé les premières nanoparticules d’iridium stable à l’air et actives vis-à-vis de l’échange d’isotopes d’hydrogène sur des anilines. L’ensemble des travaux réalisés pendant cette thèse a permis le marquage au tritium de composés médicamenteux tels que le DM4, le Benalaxyl, ou encore le pharmacophore du Volixibat.
The development of new efficient, fast and easy-to-handle methods to label drug compounds with deuterium or tritium in one single step is of great importance in academia and industry. These labelled compounds…
Advisors/Committee Members: Dugave, Christophe (thesis director).
Subjects/Keywords: Catalyse; Échange d'isotopes d'hydrogène; Drug Discovery; Fonctionnalisation-CH; Catalysis; CH-Functionalization; Hydrogen isotope exchange; Drug Discovery
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Valero, M. (2020). Iridium-Catalyzed CH-Functionalization : Development and Applications of Innovative Strategies for Hydrogen Isotope Exchange on Small Molecules and Biotherapeutic Drugs for Drug Discovery : Fonctionnalisation de liaisons C-H par catalyse à l'iridium : Développement de nouvelles méthodes pour l'échange d'isotopes d'hydrogène sur des petites molécules et des composés biothérapeutiques. (Doctoral Dissertation). université Paris-Saclay. Retrieved from http://www.theses.fr/2020UPASS009
Chicago Manual of Style (16th Edition):
Valero, Mégane. “Iridium-Catalyzed CH-Functionalization : Development and Applications of Innovative Strategies for Hydrogen Isotope Exchange on Small Molecules and Biotherapeutic Drugs for Drug Discovery : Fonctionnalisation de liaisons C-H par catalyse à l'iridium : Développement de nouvelles méthodes pour l'échange d'isotopes d'hydrogène sur des petites molécules et des composés biothérapeutiques.” 2020. Doctoral Dissertation, université Paris-Saclay. Accessed March 04, 2021.
http://www.theses.fr/2020UPASS009.
MLA Handbook (7th Edition):
Valero, Mégane. “Iridium-Catalyzed CH-Functionalization : Development and Applications of Innovative Strategies for Hydrogen Isotope Exchange on Small Molecules and Biotherapeutic Drugs for Drug Discovery : Fonctionnalisation de liaisons C-H par catalyse à l'iridium : Développement de nouvelles méthodes pour l'échange d'isotopes d'hydrogène sur des petites molécules et des composés biothérapeutiques.” 2020. Web. 04 Mar 2021.
Vancouver:
Valero M. Iridium-Catalyzed CH-Functionalization : Development and Applications of Innovative Strategies for Hydrogen Isotope Exchange on Small Molecules and Biotherapeutic Drugs for Drug Discovery : Fonctionnalisation de liaisons C-H par catalyse à l'iridium : Développement de nouvelles méthodes pour l'échange d'isotopes d'hydrogène sur des petites molécules et des composés biothérapeutiques. [Internet] [Doctoral dissertation]. université Paris-Saclay; 2020. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2020UPASS009.
Council of Science Editors:
Valero M. Iridium-Catalyzed CH-Functionalization : Development and Applications of Innovative Strategies for Hydrogen Isotope Exchange on Small Molecules and Biotherapeutic Drugs for Drug Discovery : Fonctionnalisation de liaisons C-H par catalyse à l'iridium : Développement de nouvelles méthodes pour l'échange d'isotopes d'hydrogène sur des petites molécules et des composés biothérapeutiques. [Doctoral Dissertation]. université Paris-Saclay; 2020. Available from: http://www.theses.fr/2020UPASS009

NSYSU
11.
Ho, Hsing-yao.
A Study of the Childhood Writings of Ch`i Chun and Hai-yin Lin.
Degree: Master, Chinese Literature, 2015, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0525115-005919
► The research motivation is to study how two significant female writers in the fifties, Ch`i Chun and Hai-Yin Lin, resolved inner female anxiety resulting from…
(more)
▼ The research motivation is to study how two significant female writers in the fifties,
Ch`i Chun and Hai-Yin Lin, resolved inner female anxiety resulting from conflict and insecurity of mind and body after moving to Taiwan. The aim to explore their childhood writings is to understand how the two female writers examined their own childhood, interpreted hometown, and defined value of women autonomy.
The thesis intends to start from the influence of âpatriarchyâ in education and personality in the two writer sâ childhood and further analyze their domestic life in terms of father and daughter, mother and daughter relationship extending from âpatriarchyâ, followed by how the two female writers expose traditional mothersâ silence by interpreting âpatriarchyâ in childhood writings. Another focus is the construction from âhomeâ to âhometownâ: it begins with the family space experienced by females, which quotes the illustration of house space in The Poetic of Space by Gaston Bachelard, the control of patriarchy extension in Surveiller et punir: Naissance de la prison by Michel Foucault, and the exploration of female body geography in Gender, Identity and Place by Linda McDowell to explain the relationship and symbol of body and power in spaces. Last, âcultural geographyâ is applied to recreate the two female writersâ identity and a sense of belonging toward âhometownâ, interpret their value of âchildhood living spaceâ and âhometown reproduction.â With words, old Zhejiang and Peiping are reconstructed to render what these spaces mean to female self-identity.
Advisors/Committee Members: Mei-Tzu Tsai (chair), Hsien-tsung Kung (chair), Jen-nien Chai (committee member).
Subjects/Keywords: Ch`i Chun; childhood; Hai-yin Lin; patriarchy; female
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ho, H. (2015). A Study of the Childhood Writings of Ch`i Chun and Hai-yin Lin. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0525115-005919
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ho, Hsing-yao. “A Study of the Childhood Writings of Ch`i Chun and Hai-yin Lin.” 2015. Thesis, NSYSU. Accessed March 04, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0525115-005919.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ho, Hsing-yao. “A Study of the Childhood Writings of Ch`i Chun and Hai-yin Lin.” 2015. Web. 04 Mar 2021.
Vancouver:
Ho H. A Study of the Childhood Writings of Ch`i Chun and Hai-yin Lin. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Mar 04].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0525115-005919.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ho H. A Study of the Childhood Writings of Ch`i Chun and Hai-yin Lin. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0525115-005919
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universiteit Utrecht
12.
Verhoeven, N.J.W.
Inhibitie bij kinderen met een Taalontwikkelingsstoornis.
Degree: 2015, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/311819
► Dit onderzoek richtte zich op de vraag of kinderen met een taalontwikkelingsstoornis (TOS) lager dan gemiddeld scoren op de executieve functie inhibitie en onderzocht of…
(more)
▼ Dit onderzoek richtte zich op de vraag of kinderen met een taalontwikkelingsstoornis (TOS) lager dan gemiddeld scoren op de executieve functie inhibitie en onderzocht of prestaties op cognitieve tests overeen komen met gedragsevaluaties van ouders en leerkrachten. De steekproef bestond uit 30 eentalige kinderen gediagnosticeerd met een TOS, waarvan 20 jongens en 10 meisjes, met een gemiddelde leeftijd van 10;4 jaar (M leeftijd = 10.39, SD = 1.09). De afgenomen cognitieve tests zijn: ‘Loop, sta stil’ en ‘Omgekeerde wereld’ van de Test of Everyday Attention for Children (TEA-
Ch). De inhibitieschaal van de Ouder- en Leerkrachtvragenlijst van de BRIEF Executieve Functies Gedragsvragenlijst werd ingevuld om inhibitie op gedragsniveau te evalueren. Uit one sample t-tests bleek dat kinderen met een TOS enkel uitvallen op de cognitieve test ‘Loop, sta stil’ (p = .006, d = 0.54) . Daarnaast toonden correlationele analyses verwaarloosbare effecten tussen de cognitieve tests van de TEA-
Ch en de gedragsvragenlijsten van de BRIEF. Deze resultaten laten zien dat er geen verband bestaat tussen de meetinstrumenten. Mogelijke verklaringen hiervoor worden gegeven en aanbevelingen voor vervolgonderzoek worden gedaan.
Advisors/Committee Members: Blom, W.B.T., Hermans, D..
Subjects/Keywords: Taalontwikkelingsstoornis (TOS); inhibitie; cognitieve tests; gedragsvragenlijsten; TEA-Ch; BRIEF
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Verhoeven, N. J. W. (2015). Inhibitie bij kinderen met een Taalontwikkelingsstoornis. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/311819
Chicago Manual of Style (16th Edition):
Verhoeven, N J W. “Inhibitie bij kinderen met een Taalontwikkelingsstoornis.” 2015. Masters Thesis, Universiteit Utrecht. Accessed March 04, 2021.
http://dspace.library.uu.nl:8080/handle/1874/311819.
MLA Handbook (7th Edition):
Verhoeven, N J W. “Inhibitie bij kinderen met een Taalontwikkelingsstoornis.” 2015. Web. 04 Mar 2021.
Vancouver:
Verhoeven NJW. Inhibitie bij kinderen met een Taalontwikkelingsstoornis. [Internet] [Masters thesis]. Universiteit Utrecht; 2015. [cited 2021 Mar 04].
Available from: http://dspace.library.uu.nl:8080/handle/1874/311819.
Council of Science Editors:
Verhoeven NJW. Inhibitie bij kinderen met een Taalontwikkelingsstoornis. [Masters Thesis]. Universiteit Utrecht; 2015. Available from: http://dspace.library.uu.nl:8080/handle/1874/311819

University of Debrecen
13.
Földvári, Tibor Imre.
Szénhidrogén kutató fúráspontok területeinek rekultiváció utáni talajtömörödés vizsgálata
.
Degree: DE – Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási Kar, University of Debrecen
URL: http://hdl.handle.net/2437/245705
► A CH bányászat és a mezőgazdaság kapcsolata és egymásra utaltsága. A CH bányászat során kutatófúrások létesítésével igénybe vett szántó területek rekultivációja után esetenként jelentkező talajtömörödési…
(more)
▼ A
CH bányászat és a mezőgazdaság kapcsolata és egymásra utaltsága. A
CH bányászat során kutatófúrások létesítésével igénybe vett szántó területek rekultivációja után esetenként jelentkező talajtömörödési problémák gyakoriságának, azok mértékének vizsgálata. A területek helyreállítási tevékenységének hatékonyság és hatástartam elemzése. A talajtömörödést előidéző okok kutatása, vizsgálata. A talajtömörödés penetrométeres talajellenállás és nedvességtartalom mérése a vizsgált területeken. A kutatás alá vont három fúráspont területein mért értékeknek a kontrollterületeken mért adatokkal való összehasonlítása, azok statisztikai elemzése.
Advisors/Committee Members: Zsembeli, József (advisor).
Subjects/Keywords: CH bányászat;
talajtömörödés;
rekultiváció
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Földvári, T. I. (n.d.). Szénhidrogén kutató fúráspontok területeinek rekultiváció utáni talajtömörödés vizsgálata
. (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/245705
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Földvári, Tibor Imre. “Szénhidrogén kutató fúráspontok területeinek rekultiváció utáni talajtömörödés vizsgálata
.” Thesis, University of Debrecen. Accessed March 04, 2021.
http://hdl.handle.net/2437/245705.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Földvári, Tibor Imre. “Szénhidrogén kutató fúráspontok területeinek rekultiváció utáni talajtömörödés vizsgálata
.” Web. 04 Mar 2021.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Földvári TI. Szénhidrogén kutató fúráspontok területeinek rekultiváció utáni talajtömörödés vizsgálata
. [Internet] [Thesis]. University of Debrecen; [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2437/245705.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Földvári TI. Szénhidrogén kutató fúráspontok területeinek rekultiváció utáni talajtömörödés vizsgálata
. [Thesis]. University of Debrecen; Available from: http://hdl.handle.net/2437/245705
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

University of Cambridge
14.
Ho, Danny Ka Hei.
Palladium(II)-Catalysed sp 3 C–H Functionalisation of Hindered Amines and its Application in Synthesis of Astemizole Analogues.
Degree: PhD, 2016, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/267480
► The development of a palladium-catalysed C–H carbonylation of hindered secondary amines is described. Central to this strategy is the temporary conversion of simple ketones into…
(more)
▼ The development of a palladium-catalysed C–H carbonylation of hindered secondary amines is
described. Central to this strategy is the temporary conversion of simple ketones into hindered
secondary amines that facilitates a sterically promoted palladium-catalysed C–H activation. A
range of functional groups are shown to be compatible with this catalytic process, and with exclusive regioselectivity for the terminal ethyl sp 3 C–H in most cases. This method allows an overall incorporation of a carboxyl group to the b-position of terminal ketones, generating 1,4-
dicarbonyl moieties which are important synthetic building blocks.
The sterically promoted C–H functionalisation strategy has been employed as the key step in the
synthesis of a functionalised analogue of astemizole, a pharmaceutical agent which suffers from
undesired hERG activity. The increased steric bulk around the tertiary amine, coupled with introduction of a polar hydroxyl group via the C–H acetoxylation reaction, is proposed to reduce binding to the hERG channel. The hERG profile of this analogue is not yet established.
Subjects/Keywords: CH activation; Palladium; functionalisation of ketones; hindered secondary amines; Catalysis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ho, D. K. H. (2016). Palladium(II)-Catalysed sp 3 C–H Functionalisation of Hindered Amines and its Application in Synthesis of Astemizole Analogues. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/267480
Chicago Manual of Style (16th Edition):
Ho, Danny Ka Hei. “Palladium(II)-Catalysed sp 3 C–H Functionalisation of Hindered Amines and its Application in Synthesis of Astemizole Analogues.” 2016. Doctoral Dissertation, University of Cambridge. Accessed March 04, 2021.
https://www.repository.cam.ac.uk/handle/1810/267480.
MLA Handbook (7th Edition):
Ho, Danny Ka Hei. “Palladium(II)-Catalysed sp 3 C–H Functionalisation of Hindered Amines and its Application in Synthesis of Astemizole Analogues.” 2016. Web. 04 Mar 2021.
Vancouver:
Ho DKH. Palladium(II)-Catalysed sp 3 C–H Functionalisation of Hindered Amines and its Application in Synthesis of Astemizole Analogues. [Internet] [Doctoral dissertation]. University of Cambridge; 2016. [cited 2021 Mar 04].
Available from: https://www.repository.cam.ac.uk/handle/1810/267480.
Council of Science Editors:
Ho DKH. Palladium(II)-Catalysed sp 3 C–H Functionalisation of Hindered Amines and its Application in Synthesis of Astemizole Analogues. [Doctoral Dissertation]. University of Cambridge; 2016. Available from: https://www.repository.cam.ac.uk/handle/1810/267480

University of Edinburgh
15.
Stephen, Jennifer Lea.
Studies towards the decarboxylative cross-coupling of azole-4-carboxylic acids.
Degree: PhD, 2015, University of Edinburgh
URL: http://hdl.handle.net/1842/18011
► Some interesting, biologically active natural products have been found to contain poly-azole fragments within their core. These fragments are linked through the 2- position of…
(more)
▼ Some interesting, biologically active natural products have been found to contain poly-azole fragments within their core. These fragments are linked through the 2- position of one azole and the 4-position of its neighbour. Decarboxylative cross-coupling methodology may provide a route to these desired linked azoles through cross-coupling of azole-4-carboxylic acids with azole-2- halides or with azoles containing no substitution at the 2-position. Investigations into the silver-mediated decarboxylation, and subsequent coupling potential, of thiazole and oxazole-4-carboxylic acids are reported. Methods towards the synthesis of novel chlorinated thiazole and oxazole acids and their precursors are also described. A method to successfully couple these acids to aryl iodides has been developed and the scope of this reaction extended to a variety of functionalised azole-4-carboxylic acids. Attempts to extend this methodology and combine the decarboxylative coupling with CH activation of a second azole are also described.
Subjects/Keywords: 547; decarboxylation; palladium; cross-coupling; azole; CH activation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stephen, J. L. (2015). Studies towards the decarboxylative cross-coupling of azole-4-carboxylic acids. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/18011
Chicago Manual of Style (16th Edition):
Stephen, Jennifer Lea. “Studies towards the decarboxylative cross-coupling of azole-4-carboxylic acids.” 2015. Doctoral Dissertation, University of Edinburgh. Accessed March 04, 2021.
http://hdl.handle.net/1842/18011.
MLA Handbook (7th Edition):
Stephen, Jennifer Lea. “Studies towards the decarboxylative cross-coupling of azole-4-carboxylic acids.” 2015. Web. 04 Mar 2021.
Vancouver:
Stephen JL. Studies towards the decarboxylative cross-coupling of azole-4-carboxylic acids. [Internet] [Doctoral dissertation]. University of Edinburgh; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1842/18011.
Council of Science Editors:
Stephen JL. Studies towards the decarboxylative cross-coupling of azole-4-carboxylic acids. [Doctoral Dissertation]. University of Edinburgh; 2015. Available from: http://hdl.handle.net/1842/18011

Princeton University
16.
Shields, Benjamin Joseph.
Photochemistry and Photophysics of Nickel Complexes
.
Degree: PhD, 2019, Princeton University
URL: http://arks.princeton.edu/ark:/88435/dsp011c18dj69x
► Over the past century, transition metal catalysis has fundamentally changed chemistry, delivering novel methods for the synthesis of organic molecules and sustainable approaches to challenges…
(more)
▼ Over the past century, transition metal catalysis has fundamentally changed chemistry, delivering novel methods for the synthesis of organic molecules and sustainable approaches to challenges facing society. Accordingly, the continued discovery and development of novel transition metal catalyzed reactions has the potential to impact most individuals and industries either directly, as in the production of life saving pharmaceuticals and fine chemicals, or indirectly in downstream applications. The work presented herein highlights the development and study of nickel-catalyzed photochemical transformations. I report the development of a C(sp3)–H cross-coupling platform enabled by the catalytic generation of chlorine radicals via nickel and photoredox catalysis. Preliminary mechanistic studies suggest that photolysis of a Ni(III) aryl chloride intermediate, generated by photoredox-mediated single-electron oxidation, leads to elimination of a chlorine radical in what amounts to the sequential capture of two photons. This novel reaction platform is then leveraged towards the redox‐neutral formylation of aryl chlorides. The scalable benchtop approach provides a distinct advantage over traditional reductive carbonylation in that no carbon monoxide, pressurized gas, or stoichiometric reductant is employed. The mild conditions give unprecedented scope from abundant and complex aryl chloride starting materials. Finally, these synthetic studies motivated a spectroscopic investigation of the photophysics and photochemistry of Ni(II) aryl halide complexes common to cross-coupling and Ni/photoredox reactions. Computational and ultrafast spectroscopic studies suggest that these complexes feature long-lived and reactive excited states, implicating Ni as an underexplored alternative to precious metal photocatalysts.
Advisors/Committee Members: Doyle, Abigail G (advisor).
Subjects/Keywords: CH Functionalization;
Nickel catalysis;
Photoinduced dissociation;
Photoredox;
Ultrafast spectroscopy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shields, B. J. (2019). Photochemistry and Photophysics of Nickel Complexes
. (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp011c18dj69x
Chicago Manual of Style (16th Edition):
Shields, Benjamin Joseph. “Photochemistry and Photophysics of Nickel Complexes
.” 2019. Doctoral Dissertation, Princeton University. Accessed March 04, 2021.
http://arks.princeton.edu/ark:/88435/dsp011c18dj69x.
MLA Handbook (7th Edition):
Shields, Benjamin Joseph. “Photochemistry and Photophysics of Nickel Complexes
.” 2019. Web. 04 Mar 2021.
Vancouver:
Shields BJ. Photochemistry and Photophysics of Nickel Complexes
. [Internet] [Doctoral dissertation]. Princeton University; 2019. [cited 2021 Mar 04].
Available from: http://arks.princeton.edu/ark:/88435/dsp011c18dj69x.
Council of Science Editors:
Shields BJ. Photochemistry and Photophysics of Nickel Complexes
. [Doctoral Dissertation]. Princeton University; 2019. Available from: http://arks.princeton.edu/ark:/88435/dsp011c18dj69x
17.
NIC CH?RTHAIGH, DEIRDRE.
Bodach an Ch?ta Lachtna: eagr?n nua.
Degree: School of Lang, Lit. & Cultural Studies. Discipline of Irish, 2019, Trinity College Dublin
URL: http://hdl.handle.net/2262/89507
► T? pr?s na Nua-Ghaeilge Moiche (c. 1200?1650) ar na r?ims? is l? de litr?ocht na Gaeilge a nd?antar staid?ar n? pl? orthu. Pr?omhaidhm an tr?chtais…
(more)
▼ T? pr?s na Nua-Ghaeilge Moiche (c. 1200?1650) ar na r?ims? is l? de litr?ocht na Gaeilge a nd?antar staid?ar n? pl? orthu. Pr?omhaidhm an tr?chtais seo is ea dul i ngleic leis an mbearna seo sa l?ann tr? eagr?n scol?rtha den sc?al fiana?ochta Bodach an
Ch?ta Lachtna a chur ar f?il. Sc?al ? seo a bhaineann le deireadh thr?imhse na Nua-Ghaeilge Moiche agus a ?ir?tear i measc na sc?alta sin ar a dtugtar ?sc?alta r?m?nsacha? de ghn?th. T? an t?acs ar marthain in os cionn leathch?ad l?mhscr?bhinn a breacadh idir t?s an ocht? haois d?ag agus deireadh an nao? haois d?ag agus is ar an gc?ip is luaithe d?obh sin, at? ar caomhn? i l?mhscr?bhinn 23 M 23 (340) in Acadamh R?oga na h?ireann, at? an t-eagr?n seo bunaithe. D?antar pl? ioml?n ar thraidisi?n l?mhscr?bhinne an sc?il, ar an teanga inar cumadh ? agus ar a chomhth?acs liteartha. D?antar iarracht d?ta a luath leis an t?acs chomh maith, ag tarraingt ar fhianaise l?mhscr?bhinne, ar fhianaise inmhe?nach an t?acs agus ar fhianaise na teanga. Tugtar suntas sa saothar seo do choincheap an scr?obha?-eagarth?ra agus cuirtear sleachta de leaganacha imeallacha den sc?al in eagar sna haguis?n? mar shampla de thionchar scr?obhaithe indibhidi?la ar sheachadadh an t?acs.
Advisors/Committee Members: Mac C?rthaigh, Eoin.
Subjects/Keywords: Bodach an Ch?ta Lachtna; Nua-Ghaeilge Moiche
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
NIC CH?RTHAIGH, D. (2019). Bodach an Ch?ta Lachtna: eagr?n nua. (Thesis). Trinity College Dublin. Retrieved from http://hdl.handle.net/2262/89507
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
NIC CH?RTHAIGH, DEIRDRE. “Bodach an Ch?ta Lachtna: eagr?n nua.” 2019. Thesis, Trinity College Dublin. Accessed March 04, 2021.
http://hdl.handle.net/2262/89507.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
NIC CH?RTHAIGH, DEIRDRE. “Bodach an Ch?ta Lachtna: eagr?n nua.” 2019. Web. 04 Mar 2021.
Vancouver:
NIC CH?RTHAIGH D. Bodach an Ch?ta Lachtna: eagr?n nua. [Internet] [Thesis]. Trinity College Dublin; 2019. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2262/89507.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
NIC CH?RTHAIGH D. Bodach an Ch?ta Lachtna: eagr?n nua. [Thesis]. Trinity College Dublin; 2019. Available from: http://hdl.handle.net/2262/89507
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Southern California
18.
Ziatdinov, Vadim Rinatovich.
Activation of methane by homogeneous catalyst in weakly
acidic solvents.
Degree: PhD, Chemistry, 2007, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/496638/rec/497
► This dissertation describes the latest development in engaging simple hydrocarbons in reaction by CH activation. From initially fuming oleum condition and catalysis like halogens, the…
(more)
▼ This dissertation describes the latest development in
engaging simple hydrocarbons in reaction by
CH activation. From
initially fuming oleum condition and catalysis like halogens, the
trend goes to gold catalyst in 96% sulfuric acid, and later to
variety platinum complexes in weak organic acids. The story
concentrates on discovery of basic physical phenomenons to enhance
reactivity versus specific synthetic applications. – Chapter One
introduces the C-H activation and functionalization of alkanes via
the electrophilic mechanism, and discusses the role of
non-coordinating solvents and the related problem of inhibition of
electophilic catalysts by products such as methanol and water. The
simplest iodine and mercury in sulfuric acid catalysts described.;
Chapter Two shows another simple catalytic system reported to date
for converting methane to a methyl product below 200 °C. Gold
dissolved in 2% oleum catalyzes the selective, high yield oxidation
of methane to methyl bisulfate using selenic acid as stoichiometric
oxidant. – Chapter Three discusses in details the mechanism of the
most efficient and selective low-temperature catalytic system for
the conversion of methane to methanol, comprised of a solution of
the complex Pt(bpym)Cl2 (bpym=2-{2,2'-bipyrimidyl}) in concentrated
sulfuric acid, investigated in direct reactions as well as in
microscopic reverse reactions of model intermediates.; Chapter Four
describe the discovety of highly effective 6-membered transition
state for activation benzene in weak acids such as trifluoroacetic
acid and other organic acids by Pt(bpym)TFA2. – Chapter Five
describes the discovery of new fast
CH activation of benzene via
conceptually proposed resting state destabilization phenomenon and
experimentally supported by Pt(pic)TFA2 (pic - picolinate).;
Chapter Six discribes the discovery of CH4
CH activation at
conditions unprecedented before. Conceptual model for transition
state stabilization is discussed and experimentally supported by
Pt(nap)TFA2 (nap-2-(2-Pyridinyl)-1,8-naphthyridine). – Chapter
Seven summarizes the above results and makes attemptes to show
future directions in
CH activation.
Advisors/Committee Members: Periana, Roy A. (Committee Chair), Olah, George A. (Committee Member), Steier, William H. (Committee Member).
Subjects/Keywords: methane; CH activation; Shylov reaction
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ziatdinov, V. R. (2007). Activation of methane by homogeneous catalyst in weakly
acidic solvents. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/496638/rec/497
Chicago Manual of Style (16th Edition):
Ziatdinov, Vadim Rinatovich. “Activation of methane by homogeneous catalyst in weakly
acidic solvents.” 2007. Doctoral Dissertation, University of Southern California. Accessed March 04, 2021.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/496638/rec/497.
MLA Handbook (7th Edition):
Ziatdinov, Vadim Rinatovich. “Activation of methane by homogeneous catalyst in weakly
acidic solvents.” 2007. Web. 04 Mar 2021.
Vancouver:
Ziatdinov VR. Activation of methane by homogeneous catalyst in weakly
acidic solvents. [Internet] [Doctoral dissertation]. University of Southern California; 2007. [cited 2021 Mar 04].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/496638/rec/497.
Council of Science Editors:
Ziatdinov VR. Activation of methane by homogeneous catalyst in weakly
acidic solvents. [Doctoral Dissertation]. University of Southern California; 2007. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/496638/rec/497

Brigham Young University
19.
King, Clinton R.
Computational Studies of High-Oxidation State Main-Group Metal Hydrocarbon C-H Functionalization.
Degree: PhD, 2019, Brigham Young University
URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=9118&context=etd
► High-oxidation state main-group metal complexes are potential alternatives to transition metals for electrophilic C-H functionalization reactions. However, there is little known about how selection of…
(more)
▼ High-oxidation state main-group metal complexes are potential alternatives to transition metals for electrophilic C-H functionalization reactions. However, there is little known about how selection of the p-block, main-group metal and ligand impact C-H activation and functionalization thermodynamics and reactivity. Chapter 2 reports density functional theory (DFT) calculations used to determine qualitative and quantitative features of C-H activation and metal-methyl functionalization energy landscapes for reaction between high-oxidation state d10s0 InIII, TlIII, SnIV, and PbIV carboxylate complexes with methane. While the main-group metal influences the C-H activation barrier height in a periodic manner, the carboxylate ligand has a much larger quantitative impact on C-H activation with stabilized carboxylate anions inducing the lowest barriers. For metal-methyl reductive functionalization reactions, the barrier heights, are correlated to bond heterolysis energies as model two-electron reduction energies.In Chapter 3, DFT calculations reveal that arene C-H functionalization by the p-block main-group metal complex TlIII(TFA)3 (TFA = trifluoroacetate) occurs by a C-H activation mechanism akin to transition metal-mediated C-H activation. For benzene, toluene, and xylenes a one-step C-H activation is preferred over electron transfer or proton-coupled electron transfer. The proposed C-H activation mechanism is consistent with calculation and comparison to experiment, of arene thallation rates, regioselectivity, and H/D kinetic isotope effects. For trimethyl and tetramethyl substituted arenes, electron transfer becomes the preferred pathway and thermodynamic and kinetic calculations correctly predict the experimentally reported electron transfer crossover region.In Chapter 4, DFT calculations are used to understand the C-H oxidation reactions of methane and isobutane with SbVF5. SbVF5 is generally assumed to oxidize methane through a methanium-methyl cation mechanism. DFT calculations were used to examine methane oxidation by SbVF5 in the presence of CO leading to the acylium cation, [CH3CO]+. While there is a low barrier for methane protonation by [SbVF6]-[H]+ to give the [SbVF5]-[CH5]+ ion pair, H2 dissociation is a relatively higher energy process, even with CO assistance, and so this protonation pathway is reversible. The C-H activation/[]-bond metathesis mechanism with formation of an SbV-Me intermediate is the lowest energy pathway examined. This pathway leads to [CH3CO]+ by functionalization of the SbV-Me intermediate by CO, and is consistent with no observation of H2. In contrast to methane, due to the much lower carbocation hydride affinity, isobutane significantly favors hydride transfer to give tert-butyl carbocation with concomitant SbV to SbIII reduction. In this mechanism, the resulting highly acidic SbV-H intermediate provides a route to H2 through protonation of isobutane.
Subjects/Keywords: main group; CH activation; indium; thallium; tin; lead; antimony
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APA (6th Edition):
King, C. R. (2019). Computational Studies of High-Oxidation State Main-Group Metal Hydrocarbon C-H Functionalization. (Doctoral Dissertation). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=9118&context=etd
Chicago Manual of Style (16th Edition):
King, Clinton R. “Computational Studies of High-Oxidation State Main-Group Metal Hydrocarbon C-H Functionalization.” 2019. Doctoral Dissertation, Brigham Young University. Accessed March 04, 2021.
https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=9118&context=etd.
MLA Handbook (7th Edition):
King, Clinton R. “Computational Studies of High-Oxidation State Main-Group Metal Hydrocarbon C-H Functionalization.” 2019. Web. 04 Mar 2021.
Vancouver:
King CR. Computational Studies of High-Oxidation State Main-Group Metal Hydrocarbon C-H Functionalization. [Internet] [Doctoral dissertation]. Brigham Young University; 2019. [cited 2021 Mar 04].
Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=9118&context=etd.
Council of Science Editors:
King CR. Computational Studies of High-Oxidation State Main-Group Metal Hydrocarbon C-H Functionalization. [Doctoral Dissertation]. Brigham Young University; 2019. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=9118&context=etd

University of South Carolina
20.
Maleki, Morteza.
Studies of CH Activation in Unsaturated Amides and Esters by Trinuclear Metal Carbonyl Clusters of Osmium.
Degree: Degree ofMSin Chemistry, Chemistry and Biochemistry, 2019, University of South Carolina
URL: https://scholarcommons.sc.edu/etd/5534
► The chemistry of the reaction of Os3(CO)10(NCCH3)2 with representatives of unsaturated amides and esters, RCOCHCH2 (R=(CH3)2N, CH3O) has been investigated. In these reactions, it…
(more)
▼ The chemistry of the reaction of Os3(CO)10(NCCH3)2 with representatives of unsaturated amides and esters, RCOCHCH2 (R=(CH3)2N, CH3O) has been investigated. In these reactions, it has been observed that a
CH bond on the β-carbon atom is readily activated by triosmium carbonyl clusters. The activation of β-carbon C-H bond in unsaturated amides and esters provides a robust platform for studying multicenter C-H bond transformations and for C-C bond formation via hydrogen shift and CO insertion processes. In this work, proposed mechanistic approaches have been taken in order to better understand and study the relationship between the characterized species. In addition, a few non-identified species have been predicted to exist. Furthermore, recommendations on how this work can be further studied and improved have been made. A series of activated unsaturated amides and esters: Os2(CO)6(µ-H)(µ O=C(N(CH3)2)CHCH), 1, Os4(CO)12(µ- O=C(N(CH3)2)CHCH)2, 2, Os3(CO)9(µ-O=C(N(CH3)2)CH2CHCCHC(N(CH3)2)=O), 3, Os3(CO)8(µ-O=C(N(CH3)2)CHCH)2, 4, Os6(CO)20(µ-H)(µ-O=C(N(CH3)2) CHCH), 5, HOs3(CO)10(µ-O=C(N(CH3)2)CHCH), 6, Os5(CO)15(µ-O=C(N(CH3)2)CHCH)2, 7, and Os3(CO)9(µ-H)(µ-O=C(OCH3)CHCH), 8, were synthesized and isolated. They are described in Chapter 1. Each of the new compounds has been characterized by FT-IR, NMR (1H), mass-spectra and single crystal X-ray diffraction analysis.
Advisors/Committee Members: Richard D. Adams.
Subjects/Keywords: Chemistry; CH Activation; Osmium; Carbonyl Clusters; Trinuclear Metal Carbonyl
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Maleki, M. (2019). Studies of CH Activation in Unsaturated Amides and Esters by Trinuclear Metal Carbonyl Clusters of Osmium. (Thesis). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/5534
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Maleki, Morteza. “Studies of CH Activation in Unsaturated Amides and Esters by Trinuclear Metal Carbonyl Clusters of Osmium.” 2019. Thesis, University of South Carolina. Accessed March 04, 2021.
https://scholarcommons.sc.edu/etd/5534.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Maleki, Morteza. “Studies of CH Activation in Unsaturated Amides and Esters by Trinuclear Metal Carbonyl Clusters of Osmium.” 2019. Web. 04 Mar 2021.
Vancouver:
Maleki M. Studies of CH Activation in Unsaturated Amides and Esters by Trinuclear Metal Carbonyl Clusters of Osmium. [Internet] [Thesis]. University of South Carolina; 2019. [cited 2021 Mar 04].
Available from: https://scholarcommons.sc.edu/etd/5534.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Maleki M. Studies of CH Activation in Unsaturated Amides and Esters by Trinuclear Metal Carbonyl Clusters of Osmium. [Thesis]. University of South Carolina; 2019. Available from: https://scholarcommons.sc.edu/etd/5534
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech
21.
Capil, Tyler George.
Flame Surface Density Measurements and Curvature Statistics for Turbulent Premixed Bunsen Flames.
Degree: MS, Mechanical Engineering, 2017, Virginia Tech
URL: http://hdl.handle.net/10919/75121
► In this work, turbulent premixed combustion was analyzed through CH (methylidyne) planar laser induced fluorescence (PLIF). Flame topography measurements in terms of flame surface density…
(more)
▼ In this work, turbulent premixed combustion was analyzed through
CH (methylidyne) planar laser induced fluorescence (PLIF). Flame topography measurements in terms of flame surface density and curvature were calculated based on the flame front detected by the
CH PLIF signal. The goal of this work was to investigate turbulent flames with extremely high turbulence intensity using a recently developed HiPilot burner (a Bunsen-type burner). The studies were first conducted on a series of piloted jet flames to validate the methodology, and then conducted on the highly turbulent flames generated by the HiPilot burner. All flames were controlled by combusting methane and air under a fuel to air equivalence ratio of Φ=1.05, and the Reynolds number varied from 7,385 to 28,360. Flame surface density fields and profiles for the HiPilot burner are presented. These flame surface density measurements showed an overall decrease with height above the burner. In addition, curvature statistics for the HiPilot flames were calculated and probability density functions of the curvature samples were determined. The probability density functions of curvature for the flames showed Gaussian-shaped distributions centered near zero curvature. To conclude, flame topography measurements were verified on jet flames and were demonstrated on the new HiPilot flames.
Advisors/Committee Members: Ma, Lin (committeechair), Deng, Weiwei (committee member), Tarazaga, Pablo Alberto (committee member).
Subjects/Keywords: flame surface density; flame curvature; CH PLIF; HiPilot burner
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APA ·
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Export
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APA (6th Edition):
Capil, T. G. (2017). Flame Surface Density Measurements and Curvature Statistics for Turbulent Premixed Bunsen Flames. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/75121
Chicago Manual of Style (16th Edition):
Capil, Tyler George. “Flame Surface Density Measurements and Curvature Statistics for Turbulent Premixed Bunsen Flames.” 2017. Masters Thesis, Virginia Tech. Accessed March 04, 2021.
http://hdl.handle.net/10919/75121.
MLA Handbook (7th Edition):
Capil, Tyler George. “Flame Surface Density Measurements and Curvature Statistics for Turbulent Premixed Bunsen Flames.” 2017. Web. 04 Mar 2021.
Vancouver:
Capil TG. Flame Surface Density Measurements and Curvature Statistics for Turbulent Premixed Bunsen Flames. [Internet] [Masters thesis]. Virginia Tech; 2017. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10919/75121.
Council of Science Editors:
Capil TG. Flame Surface Density Measurements and Curvature Statistics for Turbulent Premixed Bunsen Flames. [Masters Thesis]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/75121

University of Cambridge
22.
Ho, Danny Ka Hei.
Palladium(II)-catalysed sp 3 C–H functionalisation of hindered amines and its application in synthesis of astemizole analogues.
Degree: PhD, 2016, University of Cambridge
URL: https://doi.org/10.17863/CAM.13434
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723525
► The development of a palladium-catalysed C–H carbonylation of hindered secondary amines is described. Central to this strategy is the temporary conversion of simple ketones into…
(more)
▼ The development of a palladium-catalysed C–H carbonylation of hindered secondary amines is described. Central to this strategy is the temporary conversion of simple ketones into hindered secondary amines that facilitates a sterically promoted palladium-catalysed C–H activation. A range of functional groups are shown to be compatible with this catalytic process, and with exclusive regioselectivity for the terminal ethyl sp 3 C–H in most cases. This method allows an overall incorporation of a carboxyl group to the b-position of terminal ketones, generating 1,4- dicarbonyl moieties which are important synthetic building blocks. The sterically promoted C–H functionalisation strategy has been employed as the key step in the synthesis of a functionalised analogue of astemizole, a pharmaceutical agent which suffers from undesired hERG activity. The increased steric bulk around the tertiary amine, coupled with introduction of a polar hydroxyl group via the C–H acetoxylation reaction, is proposed to reduce binding to the hERG channel. The hERG profile of this analogue is not yet established.
Subjects/Keywords: 547; CH activation; Palladium; functionalisation of ketones; hindered secondary amines; Catalysis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ho, D. K. H. (2016). Palladium(II)-catalysed sp 3 C–H functionalisation of hindered amines and its application in synthesis of astemizole analogues. (Doctoral Dissertation). University of Cambridge. Retrieved from https://doi.org/10.17863/CAM.13434 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723525
Chicago Manual of Style (16th Edition):
Ho, Danny Ka Hei. “Palladium(II)-catalysed sp 3 C–H functionalisation of hindered amines and its application in synthesis of astemizole analogues.” 2016. Doctoral Dissertation, University of Cambridge. Accessed March 04, 2021.
https://doi.org/10.17863/CAM.13434 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723525.
MLA Handbook (7th Edition):
Ho, Danny Ka Hei. “Palladium(II)-catalysed sp 3 C–H functionalisation of hindered amines and its application in synthesis of astemizole analogues.” 2016. Web. 04 Mar 2021.
Vancouver:
Ho DKH. Palladium(II)-catalysed sp 3 C–H functionalisation of hindered amines and its application in synthesis of astemizole analogues. [Internet] [Doctoral dissertation]. University of Cambridge; 2016. [cited 2021 Mar 04].
Available from: https://doi.org/10.17863/CAM.13434 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723525.
Council of Science Editors:
Ho DKH. Palladium(II)-catalysed sp 3 C–H functionalisation of hindered amines and its application in synthesis of astemizole analogues. [Doctoral Dissertation]. University of Cambridge; 2016. Available from: https://doi.org/10.17863/CAM.13434 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723525
23.
Leandro Alves da Cunha.
Avaliação pelos docentes da inserção da técnica gímnica oriental Lien Ch`i na Educação Física Escolar.
Degree: 2009, HACKEADO! By @PACKETXGROUP
URL: http://tede.unoeste.br/tede/tde_busca/arquivo.php?codArquivo=297
► O presente estudo avaliou a inserção da técnica gímnica oriental Lien Ch`i como conteúdo programático da disciplina de Educação Física nas escolas do Ensino Básico,…
(more)
▼ O presente estudo avaliou a inserção da técnica gímnica oriental Lien Ch`i como conteúdo programático da disciplina de Educação Física nas escolas do Ensino Básico, através da visão dos docentes da referida disciplina. As escolas e os professores pertencem a rede pública de ensino do estado de São Paulo, nos municípios de Presidente Prudente-SP e de Araçatuba-SP. A Secretaria de Estado da Educação de São Paulo (S.E.E./SP) realizou tal intervenção capacitando seus docentes nos ano de 2003 e 2004, efetivando a prática do Lien Ch`i nos anos de 2005, 2006 e 2007. Os Parâmetros Curriculares Nacionais (PCNs) atuais sugerem a divisão dos conteúdos de Educação física em três blocos; a) Esportes, jogos, lutas e ginásticas; b) Atividades Rítmicas e expressivas; c) Conhecimentos sobre o corpo. Devido à sua riqueza de opções de trabalho, o Lien Ch`i pode ser inserido em qualquer dos três blocos supracitados. Somados estes aspectos o nosso interesse foi aguçado para investigar as características desta modalidade, bem como a sua eficácia, motivação e aceitação dos sujeitos envolvidos no processo. Esta pesquisa tem cunho predominantemente qualitativo, cujas características mais significativas são seu conteúdo descritivo e interpretativo. Os dados foram coletados através de uma entrevista transcrita posteriormente e de consultas a documentos. Os docentes estudados (n=21) demonstraram possuir conhecimento sobre a capacitação recebida (Lien Ch`i), no que tange a origem e história, a constituição, composição e os objetivos dos exercícios, bem como, o seu auxílio para maximizar o aprendizado de escolares . Os docentes foram agentes diretos na implantação e desenvolvimento da proposta ocorrida na rede estadual de ensino de São Paulo. Foi observado uma maior reciprocidade, aceitação e participação para com o Lien Ch`i, bem como, melhor aproveitamento das aulas no ciclo I do Ensino Fundamental (de 1 à 4 séries). Foi detectada uma grande insatisfação sobre as propostas de conteúdos curriculares inseridas na disciplina de Educação Física (69,3%) e uma insatisfação maior ainda, sobre a não continuidade destas propostas inseridas (85,7%). Os fatores preponderantes citados para estas insatisfações foram: a imposição das políticas públicas educacionais autoritárias e desrespeitosas aos seus pares; a não continuidade das inserções com a troca de Governo, ou no mesmo Governo, com a troca de Secretario da Educação. .
The present study evaluated the technique of insertion eastern Lien Ch i gymnastic as programmatic content from Physical Education discipline in schools of basic education, through the discipline teachers view. The schools and the teachers belong the public teaching service of São Paulo state, in the cities of Presidente Prudente-SP and Araçatuba-SP. The Education Ministry of São Paulo (SEE / SP) carried out such an intervention enabling its faculty in 2003 and 2004, effecting the practice of Lien Ch i during the years 2005, 2006 and 2007. The current National Curricular Parameters (PCNs) suggest splitting the content of physical…
Advisors/Committee Members: Adriano Rodrigues Ruiz, Ismael Forte Freitas Júnior, Helena Faria de Barros.
Subjects/Keywords: EDUCACAO; Técnica Gímnica Oriental, Lien Ch`i; Ensino Básico; Educação Física Escolar; Eastern Technical gymnastic Lien Ch `i; Elementary Education; Physical Education
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cunha, L. A. d. (2009). Avaliação pelos docentes da inserção da técnica gímnica oriental Lien Ch`i na Educação Física Escolar. (Thesis). HACKEADO! By @PACKETXGROUP. Retrieved from http://tede.unoeste.br/tede/tde_busca/arquivo.php?codArquivo=297
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cunha, Leandro Alves da. “Avaliação pelos docentes da inserção da técnica gímnica oriental Lien Ch`i na Educação Física Escolar.” 2009. Thesis, HACKEADO! By @PACKETXGROUP. Accessed March 04, 2021.
http://tede.unoeste.br/tede/tde_busca/arquivo.php?codArquivo=297.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cunha, Leandro Alves da. “Avaliação pelos docentes da inserção da técnica gímnica oriental Lien Ch`i na Educação Física Escolar.” 2009. Web. 04 Mar 2021.
Vancouver:
Cunha LAd. Avaliação pelos docentes da inserção da técnica gímnica oriental Lien Ch`i na Educação Física Escolar. [Internet] [Thesis]. HACKEADO! By @PACKETXGROUP; 2009. [cited 2021 Mar 04].
Available from: http://tede.unoeste.br/tede/tde_busca/arquivo.php?codArquivo=297.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cunha LAd. Avaliação pelos docentes da inserção da técnica gímnica oriental Lien Ch`i na Educação Física Escolar. [Thesis]. HACKEADO! By @PACKETXGROUP; 2009. Available from: http://tede.unoeste.br/tede/tde_busca/arquivo.php?codArquivo=297
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
24.
Bonnin, Quentin.
New cationic group 4 metallocenes as potential organometallic frustrated Lewis pairs : synthesis, reactivity and catalysis : Nouveaux complexes cationiques du groupe 4 comme potentielles paires frustrées de Lewis organométalliques : synthèse, réactivité, catalyse.
Degree: Docteur es, Chimie, 2017, Bourgogne Franche-Comté
URL: http://www.theses.fr/2017UBFCK031
► Le concept de “paires frustrées de Lewis” (plus communément désignés par l’acronyme anglais FLPs) a suscité un vif intérêt depuis sa formulation en 2006. Initialement…
(more)
▼ Le concept de “paires frustrées de Lewis” (plus communément désignés par l’acronyme anglais FLPs) a suscité un vif intérêt depuis sa formulation en 2006. Initialement décrit à partir d’une phosphine encombrée comme base de Lewis et d’un borane comme acide de Lewis pour l’activation coopérative d’hydrogène sans métal, ce concept a été ensuite très largement développé en utilisant divers éléments du groupe principal (N/B, P/Al, N/Al …). Le concept a ensuite été étendu aux métaux de transitions pour pallier cette faiblesse: sont ainsi apparues les premières paires frustrées de Lewis organométalliques (OmFLPs). Dans le but de développer de telles OmFLPs, nous nous sommes intéressés à la synthèse de complexes cationiques titanocèniques et zirconocèniques en présence d’une amine. La première partie de cette thèse présente les travaux précédemment décrits sur les ligands azotés, en vue de synthétiser des complexes du groupe 4 N-fonctionnalisés. Une description plus détaillée du concept de FLP est ensuite réalisée, et un parallèle est fait avec des concepts connexes (coopérativité métal-ligand, systèmes ambiphiles). La seconde partie de ce manuscrit développe la synthèse de nouveaux ligands (aminomethyl)cyclopentadiènylure de potassium ainsi qu’une étude de leur coordination aux métaux du groupe 4. Cette étude a permis d’accéder à toute une série de nouveaux complexes dichlorotitanocènes et zirconocènes porteurs d’une fonction amine tertiaire encombrée (diisopropylaminyl et 2,2,6,6-tétraméthylpipéridine) à proximité du centre métallique. Ces travaux ont montré que l’amine ne se coordine pas audit centre métallique. Les métallocènes ainsi formés ont ensuite été transformés en cation afin de renforcer le caractère acidité de Lewis du centre métallique. Ces espèces ont montré une réactivité inattendue donnant lieu à des réarrangements par activation CH au voisinage de l’atome d’azote. Ces réarrangements ainsi que des études mécanistiques font l’objet du troisième chapitre. La quatrième partie de ce mémoire porte sur la synthèse de complexes phosphido- et amidotitanocènes cationiques. Ces complexes montrent une très bonne activité en catalyse d’hydrogénation de petites molécules dans des conditions relativement douces, vraisemblablement pour des raisons d’effets coopératifs entre le métal et le ligand. Dans une dernière partie, la synthèse de complexes titanocéniques cationiques portant une fonction iminophosphorane est développée, suivie d’une étude de réactivité de ces complexes en tant que paires frustrées de Lewis organométalliques.
In 2006, the concept of “frustrated Lewis pairs” (called FLPs) was introduced. The main characteristic of these compounds is their ability to activate cooperatively small molecules without the use of a metal (H2, CO2, alkene alkyne…). Initially based on P/B combination, the concept has been extended to several other main group elements (N/B, P/Al, N/Al …). Recently, FLPs have been extended to the transition metal realm. These organometallic FLPs (OmFLPs) are obviously non-metal free systems…
Advisors/Committee Members: Le Gendre, Pierre (thesis director), Normand, Adrien (thesis director).
Subjects/Keywords: Groupe 4; Métallocènes; Amine; Paires frustrées de Lewis; Catalyse; Activation CH; Group 4; Metallocenes; Amine; Frustrated Lewis pair; Catalysis; CH activation; 546; 547
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bonnin, Q. (2017). New cationic group 4 metallocenes as potential organometallic frustrated Lewis pairs : synthesis, reactivity and catalysis : Nouveaux complexes cationiques du groupe 4 comme potentielles paires frustrées de Lewis organométalliques : synthèse, réactivité, catalyse. (Doctoral Dissertation). Bourgogne Franche-Comté. Retrieved from http://www.theses.fr/2017UBFCK031
Chicago Manual of Style (16th Edition):
Bonnin, Quentin. “New cationic group 4 metallocenes as potential organometallic frustrated Lewis pairs : synthesis, reactivity and catalysis : Nouveaux complexes cationiques du groupe 4 comme potentielles paires frustrées de Lewis organométalliques : synthèse, réactivité, catalyse.” 2017. Doctoral Dissertation, Bourgogne Franche-Comté. Accessed March 04, 2021.
http://www.theses.fr/2017UBFCK031.
MLA Handbook (7th Edition):
Bonnin, Quentin. “New cationic group 4 metallocenes as potential organometallic frustrated Lewis pairs : synthesis, reactivity and catalysis : Nouveaux complexes cationiques du groupe 4 comme potentielles paires frustrées de Lewis organométalliques : synthèse, réactivité, catalyse.” 2017. Web. 04 Mar 2021.
Vancouver:
Bonnin Q. New cationic group 4 metallocenes as potential organometallic frustrated Lewis pairs : synthesis, reactivity and catalysis : Nouveaux complexes cationiques du groupe 4 comme potentielles paires frustrées de Lewis organométalliques : synthèse, réactivité, catalyse. [Internet] [Doctoral dissertation]. Bourgogne Franche-Comté; 2017. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2017UBFCK031.
Council of Science Editors:
Bonnin Q. New cationic group 4 metallocenes as potential organometallic frustrated Lewis pairs : synthesis, reactivity and catalysis : Nouveaux complexes cationiques du groupe 4 comme potentielles paires frustrées de Lewis organométalliques : synthèse, réactivité, catalyse. [Doctoral Dissertation]. Bourgogne Franche-Comté; 2017. Available from: http://www.theses.fr/2017UBFCK031
25.
Pellegatti, Laurent.
Méthodologie en chimie hétérocyclique et application à la synthèse d'inhibiteurs de kinases : Heterocyclic chemistry methodology and application toward synthesis of kinases inhibitors.
Degree: Docteur es, Chimie organique, 2010, Université d'Orléans
URL: http://www.theses.fr/2010ORLE2046
► Le cancer constitue l’une des principales causes de mortalité, et représente, de ce fait aujourd’hui un problème de santé publique majeur. Depuis quelques années, les…
(more)
▼ Le cancer constitue l’une des principales causes de mortalité, et représente, de ce fait aujourd’hui un problème de santé publique majeur. Depuis quelques années, les alcaloïdes marins représentent une source d’inspiration importante pour les chimistes en vue d’obtenir de nouveaux médicaments anticancéreux. Dans cette optique, des recherches effectuées au sein de notre laboratoire ont fait état de la synthèse d’analogues de ces alcaloïdes possédant une structure tris aromatique. Nous avons développé des molécules originale analogues de ces alcaloïdes disposant d’un hétérocycle central (1,2,4-triazine et imidazo[1,2-b][1,2,4,5]tétrazine) sur lequel sont greffés deux noyaux phényles diversement substitués. L’obtention de ces composés a également été l’occasion de développer de nouvelles méthodologies de synthèse. Ainsi une nouvelle réaction de type Buchwald-Hartwig sur des méthylsulfanyl-1,2,4-triazines a pu être mise au point ainsi qu’une méthode de CH arylation palladocatalysée sur le noyau imidazo[1,2-b][1,2,4,5]tétrazine. Une partie est aussi consacrée aux réactions multicomposants de type Groebke-Blackburn. Différentes évaluations pharmacologiques ont été réalisées, notamment des tests d’inhibition sur différentes kinases et de cytotoxicité sur diverses lignées cellulaires cancéreuses humaines.
Cancer, one of the leading causes of death, represents today a major public health problem. Over the last few years, marine alkaloids represent a source of inspiration for chemists in order to obtain new anticancer drugs. For this purpose, as a part of our laboratory researches, analogues of marine alkaloids were synthesized possessing a tris-aromatic structure. We developed originals analogs of these alacaloïds formed by a central heterocycle core (1,2,4-triazine et imidazo[1,2-b][1,2,4,5]tetrazine) on wich is graft two arylic moiety variously substituted. Obtaining these compounds was also an opportunity to develop news synthetic methodologies. So a new Buchwald-Hartwig reaction type based on methylsulfanyl-1,2,4-triazines has been perfect, as palladocatalyzed CH arylation pathway on imidazo[1,2-b][1,2,4,5]tetrazine. A part is devoted to Groebke-Blackburn multicomponant reaction. Various pharmacological analyses were carried out in particular with inhibition of various kinases and cytotoxicity evaluation on various human cancer cell lines.
Advisors/Committee Members: Routier, Sylvain (thesis director).
Subjects/Keywords: 1,2,4-triazine; Imidazo[1,2-b][1,2,4,5]tétrazine; CH-arylation; Inhibiteurs de CDKs;
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to Zotero / EndNote / Reference
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APA (6th Edition):
Pellegatti, L. (2010). Méthodologie en chimie hétérocyclique et application à la synthèse d'inhibiteurs de kinases : Heterocyclic chemistry methodology and application toward synthesis of kinases inhibitors. (Doctoral Dissertation). Université d'Orléans. Retrieved from http://www.theses.fr/2010ORLE2046
Chicago Manual of Style (16th Edition):
Pellegatti, Laurent. “Méthodologie en chimie hétérocyclique et application à la synthèse d'inhibiteurs de kinases : Heterocyclic chemistry methodology and application toward synthesis of kinases inhibitors.” 2010. Doctoral Dissertation, Université d'Orléans. Accessed March 04, 2021.
http://www.theses.fr/2010ORLE2046.
MLA Handbook (7th Edition):
Pellegatti, Laurent. “Méthodologie en chimie hétérocyclique et application à la synthèse d'inhibiteurs de kinases : Heterocyclic chemistry methodology and application toward synthesis of kinases inhibitors.” 2010. Web. 04 Mar 2021.
Vancouver:
Pellegatti L. Méthodologie en chimie hétérocyclique et application à la synthèse d'inhibiteurs de kinases : Heterocyclic chemistry methodology and application toward synthesis of kinases inhibitors. [Internet] [Doctoral dissertation]. Université d'Orléans; 2010. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2010ORLE2046.
Council of Science Editors:
Pellegatti L. Méthodologie en chimie hétérocyclique et application à la synthèse d'inhibiteurs de kinases : Heterocyclic chemistry methodology and application toward synthesis of kinases inhibitors. [Doctoral Dissertation]. Université d'Orléans; 2010. Available from: http://www.theses.fr/2010ORLE2046

University of Texas Southwestern Medical Center
26.
Malmquist, Nicholas Anthony.
On the Oxidative Half-Reaction of Plasmodium Falciparum Dihydroorotate Dehydogenase.
Degree: 2007, University of Texas Southwestern Medical Center
URL: http://hdl.handle.net/2152.5/417
► Plasmodium falciparum is the parasite responsible for an estimated 500 million malaria cases per year, which result in 1-2 million annual deaths. Current antimalarial chemotherapies…
(more)
▼ Plasmodium falciparum is the parasite responsible for an estimated 500 million malaria cases per year, which result in 1-2 million annual deaths. Current antimalarial chemotherapies are met with the tremendous ability of the parasite to develop resistance, underscoring the need for newer, more potent antimalarial drugs. Survival of the malaria parasite is dependent upon de novo biosynthesis of pyrimidines, as the organism is deficient in pyrimidine salvage. Dihydroorotate dehydrogenase (DHODH) is the flavoenzyme which catalyzes the fourth step in this pathway. The studies presented here describe the oxidative half-reaction of Pf DHODH where the enzyme, containing reduced falvin mononucleotide (FMN), is re-oxidized by terminal electron acceptors. The lipophilic co-substrate ubiquinone (CoQ) is shown to partition into detergent micelles in a hydrophobic chain length-dependent manner. Additionally, the enzyme is shown to associate with liposomes, which is likely mediated by its hydrophobic N-terminal domain. This arrangement reflects the physiological location of CoQ co-substrates within, and the attachment of the enzyme to, the inner mitochondrial membrane. Catalysis of CoQ analogues which partition into detergent micelles fit well to a surface dilution kinetic model, while catalysis of a CoQ analogue which remains in solution is well described by a solution steady-state kinetic model. These results suggest that the enzyme can perform catalysis of hydrophobic CoQ co-substrates at the surface-solution interface. Steady-state kinetic analysis of the complete Pf DHODH reaction cycle revealed only a modest alteration in the KM app for CoQ analogues upon mutation of several CoQ binding site residues to alanine, but displayed a more substantial effect on the catalytic rate upon mutation of a subset of residues. Pre-steady-state kinetic analysis showed both the dihydroorotate (DHO)-dependent half-reaction and the CoQ-dependent half-reaction to be faster than the observed steady-state rate. The A77 1726 binding-site mutations had no effect on the rate of the reductive half-reaction, but several reduced the rate of the CoQ-dependent flavin oxidation step without significantly altering the K,sub>d for CoQ. Inhibitors which bind in the proposed CoQ site block the CoQ-dependent oxidative half-reaction but do not inhibit the DHO-dependent reductive halfreaction. These results clearly distinguish the two co-substrate binding sites for DHO and CoQ and identify residues involved in electron transfer to physiologically relevant terminal electron acceptor substrates at a distant site.
Advisors/Committee Members: Phillips, Margaret A..
Subjects/Keywords: Flavin Mononucleotide; Oxidoreductases Acting on CH-CH Group Donors; Plasmodium falciparum
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Malmquist, N. A. (2007). On the Oxidative Half-Reaction of Plasmodium Falciparum Dihydroorotate Dehydogenase. (Thesis). University of Texas Southwestern Medical Center. Retrieved from http://hdl.handle.net/2152.5/417
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Malmquist, Nicholas Anthony. “On the Oxidative Half-Reaction of Plasmodium Falciparum Dihydroorotate Dehydogenase.” 2007. Thesis, University of Texas Southwestern Medical Center. Accessed March 04, 2021.
http://hdl.handle.net/2152.5/417.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Malmquist, Nicholas Anthony. “On the Oxidative Half-Reaction of Plasmodium Falciparum Dihydroorotate Dehydogenase.” 2007. Web. 04 Mar 2021.
Vancouver:
Malmquist NA. On the Oxidative Half-Reaction of Plasmodium Falciparum Dihydroorotate Dehydogenase. [Internet] [Thesis]. University of Texas Southwestern Medical Center; 2007. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2152.5/417.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Malmquist NA. On the Oxidative Half-Reaction of Plasmodium Falciparum Dihydroorotate Dehydogenase. [Thesis]. University of Texas Southwestern Medical Center; 2007. Available from: http://hdl.handle.net/2152.5/417
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
27.
Batail, Nelly.
La catalyse au palladium pour l'obtention d'indoles fonctionnalisés : application à une synthèse monotope d'indoloquinones par catalyse hétérogène : Palladium catalysis for functionalised indoles syntheses : application to a onepost synthesis of indoloquinone through heterogeneous catalysis.
Degree: Docteur es, Chimie, 2010, Université Claude Bernard – Lyon I
URL: http://www.theses.fr/2010LYO10195
► Depuis le début des années 1990, l'hétéroannélation de Larock est apparue comme une méthode de choix pour obtenir, en une seule étape, des indoles 2,3-disubstitués.…
(more)
▼ Depuis le début des années 1990, l'hétéroannélation de Larock est apparue comme une méthode de choix pour obtenir, en une seule étape, des indoles 2,3-disubstitués. Cependant, bien qu'efficace, certains inconvénients restaient associés à cette stratégie comme l'utilisation d'un système catalytique homogène associé à l'emploi de sels. Pour cette raison, nous avons développé une nouvelle méthodologie sans sels ou additifs par catalyse hétérogène. Différents catalyseurs commerciaux ou faciles d'accès (Pd/C ou [Pd]/NaY) ainsi que de nouveaux complexes au palladium immobilisés sur SBA-15 ont été testés. De façon surprenante, ces nouvelles conditions ont permis une activation de 2-bromoanilines et ce, sans l'emploi d'additifs. Une autre méthode d'obtention de ces hétérocycles a émergé ces dernières années et se pose comme une alternative aux couplages traditionnels : l'arylation d'indoles. Malgré de nombreuses améliorations, aucun travail ne décrivait une procédure permettant une arylation complémentaire C2 ou C3 d'indoles libres avec un système catalytique unique. Nous avons développé un tel système, basé sur une pallado-catalyse dans l'eau. Cette stratégie permet d'atteindre des sélectivités C2/C3 ou C3/C2 élevées avec de bons rendements isolés par un simple contrôle du couple (base/halogénure d’aryle).Enfin, dans le cadre de nos travaux visant la synthèse par catalyse hétérogène de produits à haute valeur ajoutée, nous avons initié des études sur l'obtention de pyrroloiminoquinones. La méthode consistant en une catalyse hétérogène monotope en seulement deux grandes étapes devrait permettre un accès rapide à de nombreux dérivés bioactifs isolés d'organismes marins.
Since the beginning of the 90's, the Larock heteroannulation became a method of choice to afford, in a single step, 2,3-disubstituted indoles. While effective, this methodology suffered of drawbacks lied to the use of salts, additives and homogeneous catalyst. Thus, we developed the first ligand and salt free heterogeneous Larock heteroannulation. Different commercially available, home made catalysts (Pd/C or [Pd]/NaY) or new palladium complexes immobilised onto mesoporous silica SBA-15 were evaluated. Surprisingly, this methodology allowed an activation of the 2-bromoanilines without using additives. Another procedure to obtain indole nucleus emerged over the past few years as an outstanding alternative to traditional cross-coupling reactions: namely the “direct arylation”. Despite major improvements, no report focuses on complementary C2 and C3-arylation procedures by means of a unique catalytic system. Herein, we describe an innovative “on water” palladium-catalyzed C–H arylation of (NH)-indoles that is site-selective through a base/halide-controlled using cheap reagents. This methodology allows the preparation of either C2- or C3-arylindoles with high isolated yields. Finally, as part of our project related to syntheses of high added value products by heterogeneous catalysis, we investigated studies in order to obtain pyrroloiminoquinones. This new…
Advisors/Committee Members: Djakovitch, Laurent (thesis director), Dufaud, Véronique (thesis director).
Subjects/Keywords: Indole; Palladium; Catalyse homogène et hétérogène; Matériaux mésostructurés; Arylation; CH-activation; Oxydation; Pyrroloiminoquinones; Indole; Palladium; Homogeneous and heterogeneous catalysis; Mesostructured materials; Arylation; CH-activation; Oxidation; Pyrroloiminoquinones; 541.3
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Batail, N. (2010). La catalyse au palladium pour l'obtention d'indoles fonctionnalisés : application à une synthèse monotope d'indoloquinones par catalyse hétérogène : Palladium catalysis for functionalised indoles syntheses : application to a onepost synthesis of indoloquinone through heterogeneous catalysis. (Doctoral Dissertation). Université Claude Bernard – Lyon I. Retrieved from http://www.theses.fr/2010LYO10195
Chicago Manual of Style (16th Edition):
Batail, Nelly. “La catalyse au palladium pour l'obtention d'indoles fonctionnalisés : application à une synthèse monotope d'indoloquinones par catalyse hétérogène : Palladium catalysis for functionalised indoles syntheses : application to a onepost synthesis of indoloquinone through heterogeneous catalysis.” 2010. Doctoral Dissertation, Université Claude Bernard – Lyon I. Accessed March 04, 2021.
http://www.theses.fr/2010LYO10195.
MLA Handbook (7th Edition):
Batail, Nelly. “La catalyse au palladium pour l'obtention d'indoles fonctionnalisés : application à une synthèse monotope d'indoloquinones par catalyse hétérogène : Palladium catalysis for functionalised indoles syntheses : application to a onepost synthesis of indoloquinone through heterogeneous catalysis.” 2010. Web. 04 Mar 2021.
Vancouver:
Batail N. La catalyse au palladium pour l'obtention d'indoles fonctionnalisés : application à une synthèse monotope d'indoloquinones par catalyse hétérogène : Palladium catalysis for functionalised indoles syntheses : application to a onepost synthesis of indoloquinone through heterogeneous catalysis. [Internet] [Doctoral dissertation]. Université Claude Bernard – Lyon I; 2010. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2010LYO10195.
Council of Science Editors:
Batail N. La catalyse au palladium pour l'obtention d'indoles fonctionnalisés : application à une synthèse monotope d'indoloquinones par catalyse hétérogène : Palladium catalysis for functionalised indoles syntheses : application to a onepost synthesis of indoloquinone through heterogeneous catalysis. [Doctoral Dissertation]. Université Claude Bernard – Lyon I; 2010. Available from: http://www.theses.fr/2010LYO10195
28.
Leroy, Fabien.
Effets des changements de végétation dans les tourbières à sphaignes sur le cycle du carbone : Effect of vegetation change in Sphagnum dominated peatland on the C cycle.
Degree: Docteur es, Sciences de l'univers, 2017, Université d'Orléans
URL: http://www.theses.fr/2017ORLE2029
► Les tourbières ont stocké un tiers du carbone organique des sols mondiaux (C) malgré une superficie ne représentant que 3% de la surface terrestre. Cependant,…
(more)
▼ Les tourbières ont stocké un tiers du carbone organique des sols mondiaux (C) malgré une superficie ne représentant que 3% de la surface terrestre. Cependant, en réponse aux changements globaux, les tourbières boréales et tempérées, majoritairement dominées par des sphaignes, peuvent être envahies par des plantes vasculaires susceptibles de modifier la dynamique du C dans ces écosystèmes. Cette thèse vise à étudier comment la présence des plantes vasculaires affecte le cycle du C des tourbières à sphaignes. Ces travaux ont porté principalement sur une plante envahissante de nombreuses tourbières, Molinia caerulea, via une étude en mésocosmes. Les expérimentations montrent que les plantes vasculaires sont à la fois favorables à la croissance des sphaignes et à la décomposition des litières. In fine, les résultats montrent que la présence de Molinia caerulea augmente la capacité de stockage du C dans les mésocosmes de sphaignes (30 to 220 gC stock m⁻² an⁻1), probablement liée à la forte productivité racinaire de cette plante. Cependant, cela semble s’opérer au détriment du C déjà stocké dans la tourbe avec une stimulation des microorganismes à travers la production d’exsudats racinaires. Ces derniers semblent également, d’une part promouvoir la consommation du C organique dissous et les émissions de CO₂ et de CH₄ observées en présence de Molinia caerulea, et d’autre part être responsables de la modification de la sensibilité à la température des exports de C via des changements des communautés microbiennes. L’impact de Molinia caerulea sur les microorganismes va aussi altérer ceux impliqués dans le cycle du N et entrainer une diminution des émissions de N₂O.
Peatlands have stored a third of the soil organic Carbon (C) in only 3% of the land area. However, in response to global change, boreal and temperate peatlands may shift from Sphagnum to vascular plant-dominated peatlands that may alter their C-sink function. This thesis aims at providing a better understanding of the vascular plants interactions in a Sphagnum dominated peatland and their implications on the C cycle. This work mainly focus on the invasion of a graminoid plant, Molinia caerulea, through a mesocosm experiment. Results from experiments show that vascular plants are both able to promote the growth of Sphagnum mosses as well as the decomposition of their litter. Molinia caerulea occurrence appears to increase the C sink capacity of Sphagnum peat mesocosms passing of 30 to 220 gC stock m⁻² y⁻1. This capacity of Molinia caerulea to store C is probably due to it high roots productivity. However, it also seems to stimulate the decomposition of ‘old’ C, stored as peat, by stimulating microorganisms activity through roots exudates. These latter also promote the dissolved organic C consumption and CO₂ and CH₄ emissions observed with Molinia caerulea occurrence, as well as the temperature sensitivity of C exports by altering the microbial communities. Molinia caerulea impacts on microorganisms also affect N cycle conducting to a decrease of N₂O emissions in…
Advisors/Committee Members: Laggoun-Defarge, Fatima (thesis director).
Subjects/Keywords: Bilan de carbone; Flux de CO₂ et CH₄; Invasion des plantes vasculaires; Tourbière à sphaignes; Arbon balance; CO₂ and CH₄ fluxes; Sphagnum-dominated peatland; Vascular plants invasion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Leroy, F. (2017). Effets des changements de végétation dans les tourbières à sphaignes sur le cycle du carbone : Effect of vegetation change in Sphagnum dominated peatland on the C cycle. (Doctoral Dissertation). Université d'Orléans. Retrieved from http://www.theses.fr/2017ORLE2029
Chicago Manual of Style (16th Edition):
Leroy, Fabien. “Effets des changements de végétation dans les tourbières à sphaignes sur le cycle du carbone : Effect of vegetation change in Sphagnum dominated peatland on the C cycle.” 2017. Doctoral Dissertation, Université d'Orléans. Accessed March 04, 2021.
http://www.theses.fr/2017ORLE2029.
MLA Handbook (7th Edition):
Leroy, Fabien. “Effets des changements de végétation dans les tourbières à sphaignes sur le cycle du carbone : Effect of vegetation change in Sphagnum dominated peatland on the C cycle.” 2017. Web. 04 Mar 2021.
Vancouver:
Leroy F. Effets des changements de végétation dans les tourbières à sphaignes sur le cycle du carbone : Effect of vegetation change in Sphagnum dominated peatland on the C cycle. [Internet] [Doctoral dissertation]. Université d'Orléans; 2017. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2017ORLE2029.
Council of Science Editors:
Leroy F. Effets des changements de végétation dans les tourbières à sphaignes sur le cycle du carbone : Effect of vegetation change in Sphagnum dominated peatland on the C cycle. [Doctoral Dissertation]. Université d'Orléans; 2017. Available from: http://www.theses.fr/2017ORLE2029
29.
Cantin, Thomas.
Conception en milieu superacide de dications chiraux pour la synthèse de composés fluorés et/ou hétérocycliques azotés : Design of chiral dications in superacid : synthesis of fluorinated and/or heterocyclic nitrogen-containing compounds.
Degree: Docteur es, Chimie organique, minérale et industrielle, 2019, Poitiers
URL: http://www.theses.fr/2019POIT2290
► Grâce à leurs fortes acidités, les milieux superacides permettent d’accéder par polyprotonation à des intermédiaires superélectrophiles polycationiques, capables d’être piégés par des nucléophiles très faibles.…
(more)
▼ Grâce à leurs fortes acidités, les milieux superacides permettent d’accéder par polyprotonation à des intermédiaires superélectrophiles polycationiques, capables d’être piégés par des nucléophiles très faibles. Ces espèces très réactives ont permis de développer des méthodologies de synthèse sans équivalent en conditions « classiques ».Dans la première partie de ce travail, la conception de cations chiraux dans le milieu HF/SbF5 en vue de leur exploitation pour des réactions stéréocontrôlées a été étudiée. Les superélectrophiles de type ammonium-carboxonium chiraux ainsi générés ont pu être observés par des expériences RMN in situ à basse température et analysés par diffraction de rayons X de monocristaux. La réactivité de ces espèces a pu être évaluée dans le cadre de réactions d’hydrofluoration et de cyclisations de type Friedel-Crafts diastéréosélectives.En deuxième partie, l’activation superélectrophile d’alpha-aminonitriles a permis de développer une nouvelle réactivité de ces composés. La formation de dications ammonium-nitrilium a été mise en évidence par des analyses RMN in situ à basse température et par cristallisation dans le milieu HF/SbF5. Cette nouvelle méthodologie a permis la synthèse de pipéridinones insaturées chirales inédites à partir de dérivés d’acides aminés.Enfin, les résultats préliminaires d’une nouvelle méthodologie d’activation de liaison Csp3-H inerte sont présentés dans une troisième partie. A partir de sulfonamides insaturées, des composés hétérocycliques azotés ont pu être synthétisés sélectivement en conditions superacides HF/SbF5 sans activateur externe.
Thanks to their exceptional acidity, superacid allow access to polycationic superelectrophiles by polyprotonation. These highly reactive species are capable of being trapped by very weak nucleophiles and can be used to develop new synthetic methodologies that do not exist under “classical” conditions.In the first part of this work, the design of chiral cations in HF/SbF5 media for their exploitation for stereocontrolled reactions was studied. The generated chiral ammonium-carboxonium superelectrophiles could be observed by low temperature in situ NMR experiments and analysed by X-ray diffraction of single-crystals. The reactivity of these species could be evaluated in the context of diastereoselective hydrofluorination reactions and Friedel-Crafts type cyclizations.In a second part, the superelectrophilic activation of alpha-aminonitriles allowed to develop a new reactivity of these compounds. The formation of ammonium-nitrilium dications was demonstrated by in situ NMR analysis at low temperature and crystallization in superacidic conditions HF/SbF5. This new methodology allowed the synthesis of novel chiral unsaturated piperidinones from amino acid derivatives.Finally, preliminary results of a new methodology of inert Csp3-H bonds functionalisation are presented in a third part. From unsaturated sulfonamides, nitrogen-containing heterocyclic compounds could be selectively synthesized under HF/SbF5 superacidic conditions without…
Advisors/Committee Members: Thibaudeau, Sébastien (thesis director), Martin-Mingot, Agnès (thesis director).
Subjects/Keywords: Superacide; Superélectrophile; Cation chiral; Fluoration stéréosélective; Études mécanistiques; Activation de liaisons CH; Superacid; Superelectrophile; Chiral cation; Stereoselective fluorination; Mechanistic studies; CH bonds activation; 547.122 3; 547.02
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cantin, T. (2019). Conception en milieu superacide de dications chiraux pour la synthèse de composés fluorés et/ou hétérocycliques azotés : Design of chiral dications in superacid : synthesis of fluorinated and/or heterocyclic nitrogen-containing compounds. (Doctoral Dissertation). Poitiers. Retrieved from http://www.theses.fr/2019POIT2290
Chicago Manual of Style (16th Edition):
Cantin, Thomas. “Conception en milieu superacide de dications chiraux pour la synthèse de composés fluorés et/ou hétérocycliques azotés : Design of chiral dications in superacid : synthesis of fluorinated and/or heterocyclic nitrogen-containing compounds.” 2019. Doctoral Dissertation, Poitiers. Accessed March 04, 2021.
http://www.theses.fr/2019POIT2290.
MLA Handbook (7th Edition):
Cantin, Thomas. “Conception en milieu superacide de dications chiraux pour la synthèse de composés fluorés et/ou hétérocycliques azotés : Design of chiral dications in superacid : synthesis of fluorinated and/or heterocyclic nitrogen-containing compounds.” 2019. Web. 04 Mar 2021.
Vancouver:
Cantin T. Conception en milieu superacide de dications chiraux pour la synthèse de composés fluorés et/ou hétérocycliques azotés : Design of chiral dications in superacid : synthesis of fluorinated and/or heterocyclic nitrogen-containing compounds. [Internet] [Doctoral dissertation]. Poitiers; 2019. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2019POIT2290.
Council of Science Editors:
Cantin T. Conception en milieu superacide de dications chiraux pour la synthèse de composés fluorés et/ou hétérocycliques azotés : Design of chiral dications in superacid : synthesis of fluorinated and/or heterocyclic nitrogen-containing compounds. [Doctoral Dissertation]. Poitiers; 2019. Available from: http://www.theses.fr/2019POIT2290

Linnaeus University
30.
Axelsson, Rebecca.
Öppet kontorslandskap : Hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män.
Degree: Organisation and Entrepreneurship, 2020, Linnaeus University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96560
► Tidigare empiriska studier har visat att kontorstyper har en inverkan på arbetstrivseln hos medarbetarna och tidigare studier har även visat att det finns en…
(more)
▼ Tidigare empiriska studier har visat att kontorstyper har en inverkan på arbetstrivseln hos medarbetarna och tidigare studier har även visat att det finns en skillnad mellan de olika könen när det kommer till hur kontorstypen påverkar de anställda. Syftet med detta arbete är därför att beskriva hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män. Studien är utförd med den kvalitativa forskningsmetoden, med en abduktiv forskningsansats, en tolkande och hermeneutisk epistemologisk inriktning och en konstruktionistisk ontologisk inriktning. Studien utgår från två valda teorierna som beskriver faktorer som påverkar trivsel, nämligen tvåfaktorsteorin och Angelöws teori, där de sju trivselfaktorerna själva arbetet, prestation, personlig utveckling, kommunikation, gemenskap, ledning och uppskattning valts ut att vidare tillämpa. För att samla in det empiriska materialet har semistrukturerade intervjuer genomförts med 12 personer som arbetar i ett öppet kontorslandskap. Utifrån det insamlade materialet framgår både positiva och negativa åsikter gällande det öppna kontorslandskapets påverkan på de olika trivselfaktorerna. Det öppna kontorslandskapet har främst en positiv påverkan på personlig utveckling, kommunikation, gemenskap och uppskattning och en negativ påverkan på själva arbetet och prestation. De faktorer där könsskillnaderna är som mest tydliga är vid själva arbetet, prestation, personlig utveckling och ledning. Däremot finns det inga tydliga könsskillnader gällande faktorerna kommunikation, gemenskap och uppfattning. Slutsatsen visar att ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna både på ett positivt och negativt sätt och trivseln skiljer sig mellan kvinnor och män, då kvinnor upplever att det öppna kontorslandskapet påverkar trivseln mer negativt än vad män gör.
Subjects/Keywords: Öppet kontorslandskap; arbetstrivsel; trivselfaktorer; könsskillnader; Angelöws teori och tvåfaktorsteorin.; Business Administration; Företagsekonomi
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Axelsson, R. (2020). Öppet kontorslandskap : Hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96560
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Axelsson, Rebecca. “Öppet kontorslandskap : Hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män.” 2020. Thesis, Linnaeus University. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96560.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Axelsson, Rebecca. “Öppet kontorslandskap : Hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män.” 2020. Web. 04 Mar 2021.
Vancouver:
Axelsson R. Öppet kontorslandskap : Hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män. [Internet] [Thesis]. Linnaeus University; 2020. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96560.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Axelsson R. Öppet kontorslandskap : Hur ett öppet kontorslandskap påverkar arbetstrivseln hos medarbetarna samt om trivseln skiljer sig mellan kvinnor och män. [Thesis]. Linnaeus University; 2020. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96560
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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