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Delft University of Technology
1.
Lopez Telgie, A. I.
Design and analysis of the DelFFi solar energy supply:.
Degree: 2014, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:8bab122b-b5aa-41c5-b3f4-d23b43da3781 
► The present thesis deals with the design and analysis of the solar energy supply for the DelFFi nano-satellites. The DelFFi project is parts of the…
(more)
▼ The present thesis deals with the design and analysis of the solar energy supply for the DelFFi nano-satellites. The DelFFi project is parts of the QB50 mission, led by VKI, that intends to launch 50 CubeSat to 350-400[km] altitude in 2016, to carry in situ research in the lower thermosphere. This kind of research has never been done in the past, nor envisioned in the future. Hence, unique challenges are faced by the participating teams.
The research was divided into three parts. Part I deals with research a photovoltaic and semiconductors theories, which lead to the understanding of the solar cells working principles. It was followed by an assessment of the available hardware useful for the DelFFi design. Part II deals with Launch and Early Operations of Delfi-n3Xt, predecessor or DelFFi launch on November 21st, 2013, as well as telemetry analysis of the
EPS. This lead to lessons learned that could are used in Part III which synthesizes the previous and includes a proposed design of the DelFFi power subsystems. This includes the
EPS board and Battery selection, as well as a detailed layout of the solar cells within the panels of the proposed deployment configuration. The later, was used to assess the available power for satellite operations through a model using ESATAN-TMS and Microsoft Excel.
Based on the available hardware, and follow up analysis, solar cells assemblies as well as a COTS
EPS board and Battery pack have been selected and price quotes are available for procurement. The LEOPS experience as well as the detailed documentation review and analysis, done for Delfi-n3xt, lead to several lessons learned which are employed in the proposed design for DelFFi. The key ones are not relying on the ADCS for the power performance, which lead to a satellite with cell on every face possible as well as double sided deployable panels; a operational balance of the power budget through duty cycling of the subsystems in different operational modes; and a design which increases the overall
EPS efficiency from ~63% on Delfi-n3Xt to ~70% on DelFFi.
Over the last months an almost full life cycle in a satellite mission has been experience: design, launch, operations, and selection of components. The proposed design remains to be manufacture once the selected hardware arrives on site, and further testing will improve the accuracy of the model used for assessing the available power. The proposed solar energy supply system is and improvement of the one on its predecessor with increased efficiency and design for a mission in a very particular region of the Atmosphere, which will deliver new science returns.
Advisors/Committee Members: Bouwmeester, J..
Subjects/Keywords: DelFFi; EPS; DelfiSpace
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APA (6th Edition):
Lopez Telgie, A. I. (2014). Design and analysis of the DelFFi solar energy supply:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:8bab122b-b5aa-41c5-b3f4-d23b43da3781
Chicago Manual of Style (16th Edition):
Lopez Telgie, A I. “Design and analysis of the DelFFi solar energy supply:.” 2014. Masters Thesis, Delft University of Technology. Accessed January 23, 2020.
http://resolver.tudelft.nl/uuid:8bab122b-b5aa-41c5-b3f4-d23b43da3781.
MLA Handbook (7th Edition):
Lopez Telgie, A I. “Design and analysis of the DelFFi solar energy supply:.” 2014. Web. 23 Jan 2020.
Vancouver:
Lopez Telgie AI. Design and analysis of the DelFFi solar energy supply:. [Internet] [Masters thesis]. Delft University of Technology; 2014. [cited 2020 Jan 23].
Available from: http://resolver.tudelft.nl/uuid:8bab122b-b5aa-41c5-b3f4-d23b43da3781.
Council of Science Editors:
Lopez Telgie AI. Design and analysis of the DelFFi solar energy supply:. [Masters Thesis]. Delft University of Technology; 2014. Available from: http://resolver.tudelft.nl/uuid:8bab122b-b5aa-41c5-b3f4-d23b43da3781
2.
Ekman, Jani.
HBCD:n vaikutus purkuhankkeen suunnitteluun ja toteutukseen
.
Degree: 2017, Theseus
URL: http://www.theseus.fi/handle/10024/135505
► Tämä opinnäytetyö on tehty osana Tampereen ammattikorkeakoulun TKI-hanketta ”HBCD purku- ja pakkausmateriaaleissa”. Tämän opinnäytetyön tarkoitus oli aloittaa selvitystyö kemiallisesti palosuojattujen lämmöneristeiden levinneisyydestä Suomen rakennuskannassa. Lisäksi…
(more)
▼ Tämä opinnäytetyö on tehty osana Tampereen ammattikorkeakoulun TKI-hanketta ”HBCD purku- ja pakkausmateriaaleissa”.
Tämän opinnäytetyön tarkoitus oli aloittaa selvitystyö kemiallisesti palosuojattujen lämmöneristeiden levinneisyydestä Suomen rakennuskannassa. Lisäksi opinnäytetyössä käsiteltiin, minkälaisia haasteita kemiallisesti palosuojattu lämmöneriste tuo rakennuksen purku- sekä saneeraushankkeisiin ja mitä toimenpiteitä vaarallisen aineen tunnistaminen sekä käsittely edellyttävät.
Opinnäytetyö oli kaksiosainen. Työn ensimmäinen osa käsittelee palonsuoja-ainetta sekä näytteenottoa. Työn toinen osa käsittelee purkuhankkeen suunnittelu- sekä toteutusvaihetta pääpiirteittäin sekä pohtii HBCD:n hankkeille tuomia haasteita.
Opinnäytetyössä kerrotaan menetelmistä, tuotteista sekä kohteista, joista HBCD-pitoisuuksia on mitattu. Työssä käsiteltiin myös palonsuoja-aineen ominaisuudet sekä pohdittiin vaikutusta tämän päivän rakennuspurkuhankkeeseen. Osana opinnäytetyötä näytekappaleita valikoitiin, mitattiin sekä toimitettiin laboratorioon jatkotutkimuksiin. Näytteitä keräämällä havainnollistettiin, kuinka näytteenottaminen onnistuu, kuinka rakennusalan työnjohtajat asiaan suhtautuvat sekä kuinka paljon näytteenottopaikkoja oli tarjolla. Mittauksia tehtiin myös satunnaisiin näytekappaleisiin jätteenkäsittelylaitoksella. Tulokset kategorioitiin sekä mittaustulokset analysoitiin.
Opinnäytetyön tuloksena laboratorioon lähetettiin kymmeniä näytepaloja, joista saatiin mitattua korkeita bromi-arvoja XRF-mittarilla. Opinnäytetyötä tehtäessä huomattiin, että HBCD on vielä tuntematon rakentajien keskuudessa. Työ toteutettiin Tampereen ammattikorkeakoulun TKI-hankkeessa osana usean opinnäytetyön kokonaisuutta. Työssä käsiteltiin lisäksi kemiallisen palosuojan hankkeille tuomia haasteita sekä myös millaisilla muutoksilla HBCD saataisiin osaksi nykypäivän purku- sekä saneerausprojekteja.; This thesis was carried out by Tampere University of Applied Sciences research-, development- and innovation project as part of “HBCD in demolition- and packaging waste”.
Main objective of this thesis was to start investigating the spread and volume of chemically fireproofed heat insulation material in Finnish construction industry. Thesis also addresses the challenges which chemically fireproofed insulation material brings to demolition- and renovation projects and which measures are required when identifying dangerous substance or material.
Thesis had two parts. First part of this thesis covers the actual fire retardant, its attributes and how samples were collected. Second part of this thesis handles main points of demolition projects planning- and execution processes and the upcoming challenges which HBCD brings to construction processes.
This thesis goes thru methods and procedures, products and objects where HBCD-concentrations has been measured. Thesis also covers retardants attributes and how the retardant effects demolition- and renovation projects waste disposal and -management. Samples were picked and…
Subjects/Keywords: HBCD;
XPS;
EPS
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APA (6th Edition):
Ekman, J. (2017). HBCD:n vaikutus purkuhankkeen suunnitteluun ja toteutukseen
. (Thesis). Theseus. Retrieved from http://www.theseus.fi/handle/10024/135505
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):
Ekman, Jani. “HBCD:n vaikutus purkuhankkeen suunnitteluun ja toteutukseen
.” 2017. Thesis, Theseus. Accessed January 23, 2020.
http://www.theseus.fi/handle/10024/135505.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ekman, Jani. “HBCD:n vaikutus purkuhankkeen suunnitteluun ja toteutukseen
.” 2017. Web. 23 Jan 2020.
Vancouver:
Ekman J. HBCD:n vaikutus purkuhankkeen suunnitteluun ja toteutukseen
. [Internet] [Thesis]. Theseus; 2017. [cited 2020 Jan 23].
Available from: http://www.theseus.fi/handle/10024/135505.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ekman J. HBCD:n vaikutus purkuhankkeen suunnitteluun ja toteutukseen
. [Thesis]. Theseus; 2017. Available from: http://www.theseus.fi/handle/10024/135505
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Alberta
3.
Baker, Matthew G.
The role of microbial extracellular polymeric substances in
psychrotolerance and geochemistry of subglacial
environments.
Degree: MS, Department of Biological Sciences, 2012, University of Alberta
URL: https://era.library.ualberta.ca/files/hm50ts14h
► Extracellular polymeric substances (EPS) were investigated to determine their potential role in microbial cryotolerance in the subglacial environment. The cell surface chemistry of Hymenobacter aerophilus…
(more)
▼ Extracellular polymeric substances (EPS) were
investigated to determine their potential role in microbial
cryotolerance in the subglacial environment. The cell surface
chemistry of Hymenobacter aerophilus cells, with and without EPS,
was determined using potentiometric titrations and cadmium
adsorption assays. The presence of EPS was associated with an
increase in both variety and quantity of surface ligands available
for environmental interactions and resulted in an increase in
adsorbed cadmium. Survival of a freeze-thaw cycle with and without
EPS was tested with Flavobacterium A97, a subglacial isolate, in
the presence and absence of a variety of particulate substrata.
Most probable number (MPN) and plate count data were unable to
provide sufficient resolution to test the hypothesis that EPS
production and the presence of a substratum would be associated
with increased survival of a freeze-thaw cycle.
Subjects/Keywords: EPS; Glacier; biogeochemistry; psychrotolerance
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APA (6th Edition):
Baker, M. G. (2012). The role of microbial extracellular polymeric substances in
psychrotolerance and geochemistry of subglacial
environments. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/hm50ts14h
Chicago Manual of Style (16th Edition):
Baker, Matthew G. “The role of microbial extracellular polymeric substances in
psychrotolerance and geochemistry of subglacial
environments.” 2012. Masters Thesis, University of Alberta. Accessed January 23, 2020.
https://era.library.ualberta.ca/files/hm50ts14h.
MLA Handbook (7th Edition):
Baker, Matthew G. “The role of microbial extracellular polymeric substances in
psychrotolerance and geochemistry of subglacial
environments.” 2012. Web. 23 Jan 2020.
Vancouver:
Baker MG. The role of microbial extracellular polymeric substances in
psychrotolerance and geochemistry of subglacial
environments. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2020 Jan 23].
Available from: https://era.library.ualberta.ca/files/hm50ts14h.
Council of Science Editors:
Baker MG. The role of microbial extracellular polymeric substances in
psychrotolerance and geochemistry of subglacial
environments. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/hm50ts14h
University of Notre Dame
4.
Ann Staudt.
Identification of Environmental Factors Critical to the
Production of Exopolysaccharides by <i>Rhizobium
tropici</i></h1>.
Degree: MSin Environmental Engineering, Civil Engineering and Geological Sciences, 2009, University of Notre Dame
URL: https://curate.nd.edu/show/tx31qf8852t
► Rhizobium tropici, a legume-symbiont soil bacterium, is known for its copious production of exopolysaccharide (EPS) material. However, many aspects of this organism’s growth and…
(more)
▼ Rhizobium tropici, a
legume-symbiont soil bacterium, is known for its copious production
of exopolysaccharide (
EPS) material. However, many aspects of this
organism’s growth and
EPS production remain uncharacterized,
including the influence of environment and culturing conditions
upon the growth of R. tropici and the chemical
structure of
EPS material being formed. We hypothesized that
R. tropici
EPS yield and chemical structure
would change when R. tropici was grown with
different organic carbon compounds. We
characterized the
EPS from R. tropici grown in
batch culture in a liquid minimal salts medium using arabinose,
glucose, sucrose, mannitol, fructose, or glutamate as the sole
carbon source. A soluble
EPS extraction procedure was developed
involving centrifugal filtration of growth media followed by
ethanol precipitation of the supernatant liquid. This
EPS product
was quantified and characterized. Changes to the
carbon source were found to significantly impact
EPS production, in
terms of yield as well as
EPS chemical composition. R.
tropici‘s growth environment was further optimized for
EPS production by examining the roles of pH and carbonitrogen
ratio, both which were found to impact
EPS production. A maximum
EPS yield of 4.08 g/L was realized under the determined optimal
conditions. Nitrogenase activity was also
investigated.
Advisors/Committee Members: Robert Nerenberg, Committee Member, Joshua Shrout, Committee Chair, Jeremy Fein, Committee Member.
Subjects/Keywords: extracellular polysaccharides; rhizobia; EPS; exopolysaccharides
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APA (6th Edition):
Staudt, A. (2009). Identification of Environmental Factors Critical to the
Production of Exopolysaccharides by <i>Rhizobium
tropici</i></h1>. (Masters Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/tx31qf8852t
Chicago Manual of Style (16th Edition):
Staudt, Ann. “Identification of Environmental Factors Critical to the
Production of Exopolysaccharides by <i>Rhizobium
tropici</i></h1>.” 2009. Masters Thesis, University of Notre Dame. Accessed January 23, 2020.
https://curate.nd.edu/show/tx31qf8852t.
MLA Handbook (7th Edition):
Staudt, Ann. “Identification of Environmental Factors Critical to the
Production of Exopolysaccharides by <i>Rhizobium
tropici</i></h1>.” 2009. Web. 23 Jan 2020.
Vancouver:
Staudt A. Identification of Environmental Factors Critical to the
Production of Exopolysaccharides by <i>Rhizobium
tropici</i></h1>. [Internet] [Masters thesis]. University of Notre Dame; 2009. [cited 2020 Jan 23].
Available from: https://curate.nd.edu/show/tx31qf8852t.
Council of Science Editors:
Staudt A. Identification of Environmental Factors Critical to the
Production of Exopolysaccharides by <i>Rhizobium
tropici</i></h1>. [Masters Thesis]. University of Notre Dame; 2009. Available from: https://curate.nd.edu/show/tx31qf8852t
5.
do Carmo Silva Barreto, Maria.
Inovação tecnológica baseada na produção de biopolímero com viabilidade para inoculante rizobiano
.
Degree: 2008, Universidade Federal de Pernambuco
URL: http://repositorio.ufpe.br/handle/123456789/1466
► Os biopolímeros polissacarídicos de origem microbiana, sintetizados por bactérias, fungos e leveduras são também conhecidos como goma devido a sua capacidade de formar soluções viscosas…
(more)
▼ Os biopolímeros polissacarídicos de origem microbiana, sintetizados por bactérias,
fungos e leveduras são também conhecidos como goma devido a sua capacidade de
formar soluções viscosas e géis em meio aquoso. A produção de exopolissacarídeos
(
EPS) microbianos tem sido objeto de intensa pesquisa, tendo em vista seu elevado
potencial de aplicação em diferentes setores. No entanto os polissacarídeos
sintetizados por bactérias do grupo Rhizobium, tem sido estudados na tentativa de
melhor compreender sua participação na simbiose leguminosa X Rhizobium, uma vez
que estes biopolímeros parecem ser determinantes da especificidade simbiótica,
entretanto a precisa função destas moléculas ainda está sendo investigada. No
processo de produção e viscosidade de polissacarídeo a ser obtido, deve-se considerar
desde o microrganismo em estudo até a determinação dos parâmetros de agitação,
tempo de incubação, excesso ou ausência de carboidratos e volume de inoculo, onde
se destaca o meio de produção e sua influência na síntese, no rendimento e na
composição dos
EPS. O objetivo deste trabalho foi avaliar a produção e viscosidade de
biopolímeros obtidos de 8 isolados de Rhizobium sp. comparados com a estirpe padrão
Rhizobium tropici (CIAT 899) em diferentes tempos de cultivo. O biopolímero foi obtido
através de agitação, em incubador agitador. As condições foram: 28 °C, 200 rpm por 96
e 168 horas em meio YM modificado. Foram avaliados: a produção, pela massa seca
da solução aquosa dos biopolímeros a 2,5 % (v/v) através da técnica da massa seca e
após a secagem do produto foi realizada em dissecador à temperatura de 30 °C, até
massa constante. Para medidas de viscosidade, as amostras foram determinadas em
viscosímetro rotacional Brookfield (modelo RVT, Spindle 1) a 20 °C, a diferentes taxas
de cisalhamento. Os resultados mostraram que os isolados no tempo de fermentação
de 168 horas apresentou maior produção de
EPS. Com o aumento do tempo também
houve um aumento da viscosidade para todos os isolados
Advisors/Committee Members: Luiz de Lima Filho, José (advisor).
Subjects/Keywords: Exopolissacarídeos (EPS);
Reologia;
Rizóbio
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APA ·
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APA (6th Edition):
do Carmo Silva Barreto, M. (2008). Inovação tecnológica baseada na produção de biopolímero com viabilidade para inoculante rizobiano
. (Thesis). Universidade Federal de Pernambuco. Retrieved from http://repositorio.ufpe.br/handle/123456789/1466
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):
do Carmo Silva Barreto, Maria. “Inovação tecnológica baseada na produção de biopolímero com viabilidade para inoculante rizobiano
.” 2008. Thesis, Universidade Federal de Pernambuco. Accessed January 23, 2020.
http://repositorio.ufpe.br/handle/123456789/1466.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
do Carmo Silva Barreto, Maria. “Inovação tecnológica baseada na produção de biopolímero com viabilidade para inoculante rizobiano
.” 2008. Web. 23 Jan 2020.
Vancouver:
do Carmo Silva Barreto M. Inovação tecnológica baseada na produção de biopolímero com viabilidade para inoculante rizobiano
. [Internet] [Thesis]. Universidade Federal de Pernambuco; 2008. [cited 2020 Jan 23].
Available from: http://repositorio.ufpe.br/handle/123456789/1466.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
do Carmo Silva Barreto M. Inovação tecnológica baseada na produção de biopolímero com viabilidade para inoculante rizobiano
. [Thesis]. Universidade Federal de Pernambuco; 2008. Available from: http://repositorio.ufpe.br/handle/123456789/1466
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Delft University of Technology
6.
Van Damme, M.
How biofilms influence morphology:.
Degree: 2009, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:9b4ee2dd-89b0-40cf-90a3-a8fb8eaf1323
► Extracellular Polymeric Substance is found to be responsible for the stabilizing behaviour of biofilms on sediment, but studies disagree on how this stabilizing effect is…
(more)
▼ Extracellular Polymeric Substance is found to be responsible for the stabilizing behaviour of biofilms on sediment, but studies disagree on how this stabilizing effect is achieved and what processes are involved in making an
EPS biofilm shear off. This study answers the question how the biofilms achieve the stabilizing effect and what processes make a biofilm shear off. For that, it combines the research to the effects of transport on boundary layer turbulence with the study to the stabilizing effects of biofilms under flow. Artificial biofilms were used in order to obtain repeatability in the experiments. The choice for the artificial biofilms was based on previous research done to the properties of biofilms and resulted in the choice for the materials sodium and calcium alginate. To study the effects of transport and biofilms on the turbulence, flume experiments have been performed using a LDA. For studying the effects of sediment transport on turbulence, coarse sediment with a D50 of 2mm and fine sediment with a D50 of 0.5mm have been used. The biofilm experiments have only been performed in combination with the fine sediment. Results showed that the influence of bed load transport on the turbulence intensities depends on the ratio between the particle size and the length scale of the turbulence. Biofilms smoothened the bed decreasing the turbulence intensities and the bed shear stress. It was found that in order to make the biofilm shear off, sediment particles under the biofilm have to be set in motion. Failure was found to occur when sand ripples eroded the sediment in front of the biofilm, allowing the flow to come under the biofilm.
Advisors/Committee Members: Van Prooijen, B.C., Simons, R.R., Stive, M.J.F..
Subjects/Keywords: Biofilms; EPS; sediment; transport
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APA ·
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Manager
APA (6th Edition):
Van Damme, M. (2009). How biofilms influence morphology:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:9b4ee2dd-89b0-40cf-90a3-a8fb8eaf1323
Chicago Manual of Style (16th Edition):
Van Damme, M. “How biofilms influence morphology:.” 2009. Masters Thesis, Delft University of Technology. Accessed January 23, 2020.
http://resolver.tudelft.nl/uuid:9b4ee2dd-89b0-40cf-90a3-a8fb8eaf1323.
MLA Handbook (7th Edition):
Van Damme, M. “How biofilms influence morphology:.” 2009. Web. 23 Jan 2020.
Vancouver:
Van Damme M. How biofilms influence morphology:. [Internet] [Masters thesis]. Delft University of Technology; 2009. [cited 2020 Jan 23].
Available from: http://resolver.tudelft.nl/uuid:9b4ee2dd-89b0-40cf-90a3-a8fb8eaf1323.
Council of Science Editors:
Van Damme M. How biofilms influence morphology:. [Masters Thesis]. Delft University of Technology; 2009. Available from: http://resolver.tudelft.nl/uuid:9b4ee2dd-89b0-40cf-90a3-a8fb8eaf1323
University of Otago
7.
Kelly, Simon John.
Requirement for Exopolysaccharide in the Mesorhizobium-Lotus Symbiosis
.
Degree: 2012, University of Otago
URL: http://hdl.handle.net/10523/2507
► The establishment of a successful symbiotic interaction between rhizobia and legumes requires complex molecular communication between the two partners in order to determine compatibility and…
(more)
▼ The establishment of a successful symbiotic interaction between rhizobia and legumes requires complex molecular communication between the two partners in order to determine compatibility and co-ordinate symbiotic developmental responses. Although a symbiotic association, the invasion of plant nodules by rhizobia bears parallels to plant pathogen interactions with a successful outcome requiring either avoiding recognition by the host plant’s innate immune system or suppressing its activation. Exopolysaccharide (
EPS) production is ubiquitous amongst rhizobia and the aim of this work was to determine its function in the Mesorhizobium-Lotus symbiosis. Evidence is presented that wild-type
EPS may suppress a defence response and, in its absence, truncated
EPS molecules produced by certain
EPS mutants may cause the bacterium to be recognised as a foe. Other
EPS mutants may remain blind to the defence system.
Colony and symbiotic phenotypes of a range of M. loti R7A
EPS mutants were examined on Lotus corniculatus and L. japonicus Gifu. Strains disrupted in the early stages of
EPS biosynthesis were symbiotically proficient (e.g. exoB and, to a lesser extent, exoA mutants), whilst strains affected in later stages (e.g. exoU mutants) were severely impaired at the stage of infection thread initiation.
EPS extracts isolated from wild-type M. loti and mutant strains were chemically characterised and a proposed structure and biosynthetic pathway for R7A
EPS was determined. R7A produces an O-acetylated acidic
EPS that is an octasaccharide consisting of glucose, galactose, glucuronic acid and riburonic acid residues. R7A
EPS mutants produced
EPS fractions that contained varying glycosyl linkages, indicating variations in low-molecular-weight
EPS production and/or alternative polysaccharides depending on the particular mutant strain.
Strains R7AexoB and R7AexoU that exhibit contrasting symbiotic phenotypes were thoroughly examined. The results suggested that R7AexoB was symbiotically proficient due to either complementary signalling by an alternative polysaccharide in the absence of
EPS or the absence of surface polysaccharides that normally elicit a plant defence response. R7AexoU was severely impaired in nodulation, most likely due to the production of a truncated
EPS molecule that is actively perceived by the plant resulting in the activation of a defence response. Pre-inoculation results suggested that the defence response elicited by R7AexoU could be dampened by wild-type R7A but not by R7AexoB. Co-inoculation studies with a ∆nodA mutant suggested that
EPS is required both for infection thread initiation and for release from the infection thread into the nodule primordia.
Several symbiotically-proficient exoU suppressor mutants were isolated following transposon mutagenesis. The insertions in these strains were in the exoA or exoL genes involved in the early stages of
EPS biosynthesis, or in four genes not previously linked to
EPS biosynthesis. Mutagenesis in an R7A background indicated that the four novel genes were not…
Advisors/Committee Members: Ronson, Clive (advisor).
Subjects/Keywords: symbiosis;
nodule;
exopolysaccharide;
EPS;
rhizobia
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APA (6th Edition):
Kelly, S. J. (2012). Requirement for Exopolysaccharide in the Mesorhizobium-Lotus Symbiosis
. (Doctoral Dissertation). University of Otago. Retrieved from http://hdl.handle.net/10523/2507
Chicago Manual of Style (16th Edition):
Kelly, Simon John. “Requirement for Exopolysaccharide in the Mesorhizobium-Lotus Symbiosis
.” 2012. Doctoral Dissertation, University of Otago. Accessed January 23, 2020.
http://hdl.handle.net/10523/2507.
MLA Handbook (7th Edition):
Kelly, Simon John. “Requirement for Exopolysaccharide in the Mesorhizobium-Lotus Symbiosis
.” 2012. Web. 23 Jan 2020.
Vancouver:
Kelly SJ. Requirement for Exopolysaccharide in the Mesorhizobium-Lotus Symbiosis
. [Internet] [Doctoral dissertation]. University of Otago; 2012. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/10523/2507.
Council of Science Editors:
Kelly SJ. Requirement for Exopolysaccharide in the Mesorhizobium-Lotus Symbiosis
. [Doctoral Dissertation]. University of Otago; 2012. Available from: http://hdl.handle.net/10523/2507
University of Manchester
8.
Mohamed Moinuddin, Mohammed Mohsin Zia.
Characterisation of Peritoneal Calcification in
Encapsulating Peritoneal Sclerosis.
Degree: 2017, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312155
► Encapsulating peritoneal sclerosis (EPS) is a rare complication of long-term peritoneal dialysis (PD). EPS is associated with extensive thickening and fibrosis of the peritoneum resulting…
(more)
▼ Encapsulating peritoneal sclerosis (
EPS) is a rare
complication of long-term peritoneal dialysis (PD).
EPS is
associated with extensive thickening and fibrosis of the peritoneum
resulting in the formation of a fibrous cocoon encapsulating the
bowel leading to intestinal obstruction. The presence of peritoneal
thickening, peritoneal calcification and bowel obstruction is
considered to be diagnostic of
EPS. The current understanding of
the pathogenesis of
EPS is through the ‘two-hit’ fibrosis
model. This model, however, does not explain the development of
peritoneal calcification in patients with
EPS. This thesis
addresses the hypothesis that altered bone mineral metabolism in
ESRF patients together with the mechanical stress of PD influences
mesothelial cells to differentiate into osteoblasts promoting
calcification in peritoneal tissue. Peritoneal calcification leads
to increased tissue stiffness causing progressive fibrosis and the
development of
EPS. We compared the temporal evolution of the
levels of bone mineral markers during PD between patients who
developed
EPS and control patients on PD. We found that raised
serum levels of calcium, phosphate and alkaline phosphatase during
PD increased the risk of development of
EPS. We compared peritoneum
from patients with
EPS with that of PD patients without
EPS using
histological techniques. We found that calcification, organised
fibrillary collagen and elastic fibres were significantly more
abundant in the
EPS peritoneum. Peritoneal calcification was also
generalised and distributed not only on the peritoneal surface but
also in the sub-mesothelial zone of fibrosis.
EPS peritoneum also
exhibited osteocalcin, an osteogenic protein, suggesting a cellular
mechanism of calcification. Atomic force microscopy of
EPS
peritoneum showed increased stiffness when compared to control PD
peritoneum with the areas of calcification possibly contributing to
the increase in tissue stiffness. Human omental cells (HOMCs) were
isolated by protease digestion and characterised using a panel of
mesothelial markers. HOMCs were cultured in phosphate rich media
and phosphate and calcium rich media. HOMCs when cultured with high
extracellular levels of calcium showed accelerated mineralisation
with upregulation of osteogenic transcription factor runx-2
suggesting osteoblastic transformation. In summary, this thesis
indicates that poorly controlled secondary hyperparathyroidism is a
risk factor for the development of
EPS. On a background of PD
related simple sclerosis, uncontrolled secondary
hyperparathyroidism can lead to the transformation of mesothelial
cells to osteoblasts. This leads to increased matrix deposition and
matrix mineralisation causing increased matrix stiffness. Increase
in matrix stiffness leads to progressive fibrosis culminating in
EPS. Peritoneal calcification can act as the second hit leading to
progressive fibrosis and development of
EPS.
Advisors/Committee Members: SUMMERS, ANGELA AM, Herrick, Sarah, Summers, Angela.
Subjects/Keywords: EPS; mesothelial cells; peritoneal calcification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mohamed Moinuddin, M. M. Z. (2017). Characterisation of Peritoneal Calcification in
Encapsulating Peritoneal Sclerosis. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312155
Chicago Manual of Style (16th Edition):
Mohamed Moinuddin, Mohammed Mohsin Zia. “Characterisation of Peritoneal Calcification in
Encapsulating Peritoneal Sclerosis.” 2017. Doctoral Dissertation, University of Manchester. Accessed January 23, 2020.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312155.
MLA Handbook (7th Edition):
Mohamed Moinuddin, Mohammed Mohsin Zia. “Characterisation of Peritoneal Calcification in
Encapsulating Peritoneal Sclerosis.” 2017. Web. 23 Jan 2020.
Vancouver:
Mohamed Moinuddin MMZ. Characterisation of Peritoneal Calcification in
Encapsulating Peritoneal Sclerosis. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2020 Jan 23].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312155.
Council of Science Editors:
Mohamed Moinuddin MMZ. Characterisation of Peritoneal Calcification in
Encapsulating Peritoneal Sclerosis. [Doctoral Dissertation]. University of Manchester; 2017. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312155
Oregon State University
9.
Garcia, Roberto A., III.
Characterization of novel exopolysaccharide producing lactic acid bacteria.
Degree: MS, Microbiology, 2014, Oregon State University
URL: http://hdl.handle.net/1957/48872
► Lactic Acid Bacteria (LAB), an important group of organisms in modern food production, are known to secrete a unique compound called exopolysaccharide (EPS). EPS is…
(more)
▼ Lactic Acid Bacteria (LAB), an important group of organisms in modern food production, are known to secrete a unique compound called exopolysaccharide (
EPS).
EPS is economically important because it enhances functional properties in food and may confer beneficial health effects to consumers. Novel strains of Lactococcus lactis, Streptococcus thermophilus, and species of Leuconostoc were screened for production of unique thickening
EPS in 1% fat milk and lactose free milk. Other important characteristics were investigated, such as pH tolerance and inhibitory compound biosynthesis.
A natural isolate, L. lactis subsp. cremoris Ropy 352 that produces a distinct ropy
EPS was previously analyzed and two unique genes, epsM and epsN, vital for the expression of the ropy phenotype were discovered. In this study, sequence analysis of two novel LAB, S.thermophilus R-39 and L. lactis subsp. cremoris 18-1, were shown to harbor genes similar but not identical to epsM and/or epsN. Interestingly, said LAB strains do not exhibit the ropy phenotype, which suggests the substituted amino acids may alter the function of the epsM and epsN proteins.
Advisors/Committee Members: Trempy, Janine (advisor), Dreher, Theo (committee member).
Subjects/Keywords: EPS; Lactococcus lactis – Genetics
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Garcia, Roberto A., I. (2014). Characterization of novel exopolysaccharide producing lactic acid bacteria. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/48872
Chicago Manual of Style (16th Edition):
Garcia, Roberto A., III. “Characterization of novel exopolysaccharide producing lactic acid bacteria.” 2014. Masters Thesis, Oregon State University. Accessed January 23, 2020.
http://hdl.handle.net/1957/48872.
MLA Handbook (7th Edition):
Garcia, Roberto A., III. “Characterization of novel exopolysaccharide producing lactic acid bacteria.” 2014. Web. 23 Jan 2020.
Vancouver:
Garcia, Roberto A. I. Characterization of novel exopolysaccharide producing lactic acid bacteria. [Internet] [Masters thesis]. Oregon State University; 2014. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/1957/48872.
Council of Science Editors:
Garcia, Roberto A. I. Characterization of novel exopolysaccharide producing lactic acid bacteria. [Masters Thesis]. Oregon State University; 2014. Available from: http://hdl.handle.net/1957/48872
University of Manchester
10.
Mohamed Moinuddin, Mohammed.
Characterisation of peritoneal calcification in encapsulating peritoneal sclerosis.
Degree: PhD, 2017, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-peritoneal-calcification-in-encapsulating-peritoneal-sclerosis(003593cd-01f0-4e7b-a22b-d216451f6a93).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764513
► Encapsulating peritoneal sclerosis (EPS) is a rare complication of long-term peritoneal dialysis (PD). EPS is associated with extensive thickening and fibrosis of the peritoneum resulting…
(more)
▼ Encapsulating peritoneal sclerosis (EPS) is a rare complication of long-term peritoneal dialysis (PD). EPS is associated with extensive thickening and fibrosis of the peritoneum resulting in the formation of a fibrous cocoon encapsulating the bowel leading to intestinal obstruction. The presence of peritoneal thickening, peritoneal calcification and bowel obstruction is considered to be diagnostic of EPS. The current understanding of the pathogenesis of EPS is through the 'two-hit' fibrosis model. This model, however, does not explain the development of peritoneal calcification in patients with EPS. This thesis addresses the hypothesis that altered bone mineral metabolism in ESRF patients together with the mechanical stress of PD influences mesothelial cells to differentiate into osteoblasts promoting calcification in peritoneal tissue. Peritoneal calcification leads to increased tissue stiffness causing progressive fibrosis and the development of EPS. We compared the temporal evolution of the levels of bone mineral markers during PD between patients who developed EPS and control patients on PD. We found that raised serum levels of calcium, phosphate and alkaline phosphatase during PD increased the risk of development of EPS. We compared peritoneum from patients with EPS with that of PD patients without EPS using histological techniques. We found that calcification, organised fibrillary collagen and elastic fibres were significantly more abundant in the EPS peritoneum. Peritoneal calcification was also generalised and distributed not only on the peritoneal surface but also in the sub-mesothelial zone of fibrosis. EPS peritoneum also exhibited osteocalcin, an osteogenic protein, suggesting a cellular mechanism of calcification. Atomic force microscopy of EPS peritoneum showed increased stiffness when compared to control PD peritoneum with the areas of calcification possibly contributing to the increase in tissue stiffness. Human omental cells (HOMCs) were isolated by protease digestion and characterised using a panel of mesothelial markers. HOMCs were cultured in phosphate rich media and phosphate and calcium rich media. HOMCs when cultured with high extracellular levels of calcium showed accelerated mineralisation with upregulation of osteogenic transcription factor runx-2 suggesting osteoblastic transformation. In summary, this thesis indicates that poorly controlled secondary hyperparathyroidism is a risk factor for the development of EPS. On a background of PD related simple sclerosis, uncontrolled secondary hyperparathyroidism can lead to the transformation of mesothelial cells to osteoblasts. This leads to increased matrix deposition and matrix mineralisation causing increased matrix stiffness. Increase in matrix stiffness leads to progressive fibrosis culminating in EPS. Peritoneal calcification can act as the second hit leading to progressive fibrosis and development of EPS.
Subjects/Keywords: EPS; mesothelial cells; peritoneal calcification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mohamed Moinuddin, M. (2017). Characterisation of peritoneal calcification in encapsulating peritoneal sclerosis. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-peritoneal-calcification-in-encapsulating-peritoneal-sclerosis(003593cd-01f0-4e7b-a22b-d216451f6a93).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764513
Chicago Manual of Style (16th Edition):
Mohamed Moinuddin, Mohammed. “Characterisation of peritoneal calcification in encapsulating peritoneal sclerosis.” 2017. Doctoral Dissertation, University of Manchester. Accessed January 23, 2020.
https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-peritoneal-calcification-in-encapsulating-peritoneal-sclerosis(003593cd-01f0-4e7b-a22b-d216451f6a93).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764513.
MLA Handbook (7th Edition):
Mohamed Moinuddin, Mohammed. “Characterisation of peritoneal calcification in encapsulating peritoneal sclerosis.” 2017. Web. 23 Jan 2020.
Vancouver:
Mohamed Moinuddin M. Characterisation of peritoneal calcification in encapsulating peritoneal sclerosis. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2020 Jan 23].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-peritoneal-calcification-in-encapsulating-peritoneal-sclerosis(003593cd-01f0-4e7b-a22b-d216451f6a93).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764513.
Council of Science Editors:
Mohamed Moinuddin M. Characterisation of peritoneal calcification in encapsulating peritoneal sclerosis. [Doctoral Dissertation]. University of Manchester; 2017. Available from: https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-peritoneal-calcification-in-encapsulating-peritoneal-sclerosis(003593cd-01f0-4e7b-a22b-d216451f6a93).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764513
11.
Ding, Zhiji.
Engineering and microbial aspects of Anammox process in wastewater treatment : Ingénierie et aspects microbiens du procédé Anammox pour le traitement des eaux usées.
Degree: Docteur es, Sciences et Techniques de l'Environnement, 2015, Université Paris-Est
URL: http://www.theses.fr/2015PESC1189
► Élimination de l'azote est obligatoire dans moderne usine de traitement des eaux usées (STEP) en raison de sa toxicité à la fois humaine et l'écosystème.…
(more)
▼ Élimination de l'azote est obligatoire dans moderne usine de traitement des eaux usées (STEP) en raison de sa toxicité à la fois humaine et l'écosystème. Un niveau élevé d'azote peut provoquer une eutrophisation dans le système aquatique. Élimination de l'azote autotrophes qui combine nitritation partielle et Anammox est une technologie attrayante qui est approprié pour une grande force d'ammonium des eaux usées à faible teneur en carbone organique. Toutefois, le ralentissement de la croissance extrême des bactéries Anammox avec le temps de 9-13 jours doubler entrave la pleine application de l'échelle. L'objectif de cette recherche était d'étudier la faisabilité et la stratégie opérationnelle de l'enrichissement Anammox de boues conventionnelle aérobie (réacteur ASR), la dénitrification des boues (Réacteur DSR) et boue anaérobie (réacteur ANR) en utilisant réacteur biologique séquentiel (SBR). Anammox processus a été établi avec succès en DSR avec une élimination de l'azote total d'environ 80% sous le contrôle strict de l'oxygène au bout de 150 jours, ce qui est confirmé par la composition chimique de l'influent / effluents ainsi que l'analyse microbienne. Sous la même condition opérationnelle, ANR atteint seulement 20-30% d'élimination de l'azote total. Avec un temps plus court de rétention hydraulique (HRT) et de contrôle d'oxygène insuffisante, ASR a atteint 50-60% du total élimination de l'azote après 240 jours. Tous les réacteurs ont connu la fluctuation des performances au cours du processus d'enrichissement, qui est censé être la conséquence de facteurs inhibiteurs tels que l'oxygène dissous, sans nitrites et l'ammoniac libre ainsi que les bactéries coexistantes indésirables qui sont en concurrence pour le même substrat. L'électrophorèse sur gel de gradient dénaturant (DGGE) bande à partir des échantillons d'ADN amplifiés extraites ASR lors de l'étape d'enrichissement différente montre une nette évolution de la composition microbienne. Substances polymères extracellulaires (
EPS) de différents biomasse Anammox ont été extraites et caractérisé par analyse quantitative et qualitative pour enquêter sur sa corrélation avec le processus d'enrichissement dans un bioréacteur de l'échelle du laboratoire. Une diminution de la protéine au polysaccharide (PN / PS) rapport et une augmentation du rendement total d'extraction
EPS ont été observés au cours du processus d'enrichissement. La matrice à trois dimensions excitation d'émission (3D-EEM) a montré un endroit similaire des pics de fluorescence pour tous les échantillons tandis que les échantillons avec des bactéries Anammox possèdent deux pics distincts dans le bas de gamme d'onde d'excitation. Pics multiples excitation peuvent se produire comme en témoigne la fluorescence identique chromatogramme après chromatographie d'exclusion de taille (SEC) à séparation d'excitation / émission de 221/350 nm et 280/330 nm. Rayons ultraviolets (UV) absorbance à 210 nm a été enregistrée en même temps que la détection de fluorescence à une excitation / émission 222/300 nm de longueur…
Advisors/Committee Members: Madon, Michel (thesis director).
Subjects/Keywords: Ammonium; Anammox; AerAOB; Salinity; Eps; Ammonium; Anammox; AerAOB; Salinity; Eps
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ding, Z. (2015). Engineering and microbial aspects of Anammox process in wastewater treatment : Ingénierie et aspects microbiens du procédé Anammox pour le traitement des eaux usées. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2015PESC1189
Chicago Manual of Style (16th Edition):
Ding, Zhiji. “Engineering and microbial aspects of Anammox process in wastewater treatment : Ingénierie et aspects microbiens du procédé Anammox pour le traitement des eaux usées.” 2015. Doctoral Dissertation, Université Paris-Est. Accessed January 23, 2020.
http://www.theses.fr/2015PESC1189.
MLA Handbook (7th Edition):
Ding, Zhiji. “Engineering and microbial aspects of Anammox process in wastewater treatment : Ingénierie et aspects microbiens du procédé Anammox pour le traitement des eaux usées.” 2015. Web. 23 Jan 2020.
Vancouver:
Ding Z. Engineering and microbial aspects of Anammox process in wastewater treatment : Ingénierie et aspects microbiens du procédé Anammox pour le traitement des eaux usées. [Internet] [Doctoral dissertation]. Université Paris-Est; 2015. [cited 2020 Jan 23].
Available from: http://www.theses.fr/2015PESC1189.
Council of Science Editors:
Ding Z. Engineering and microbial aspects of Anammox process in wastewater treatment : Ingénierie et aspects microbiens du procédé Anammox pour le traitement des eaux usées. [Doctoral Dissertation]. Université Paris-Est; 2015. Available from: http://www.theses.fr/2015PESC1189
University of Utah
12.
Lingwall, Bret Nils.
Development of an expanded polystyrene geofoam cover system for pipelines at fault crossings.
Degree: PhD, Civil & Environmental Engineering, 2011, University of Utah
URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/5/rec/708
► Questar Corporation commissioned and funded this research, in partnership with the University of Utah and Bechtel Corporation, to develop methods of protecting steel natural gas…
(more)
▼ Questar Corporation commissioned and funded this research, in partnership with the University of Utah and Bechtel Corporation, to develop methods of protecting steel natural gas pipelines crossing zones of permanent ground deformation. The goal of this research was the development and testing of an Expanded Polystyrene (EPS) Geofoam cover system for such pipelines across active faults or areas of permanent ground deformation (e.g., landslides, permafrost thaw, liquefaction-induced lateral spread). The goal of an EPS Geofoam cover system atop a buried pipeline is to reduce the lateral, longitudinal and vertical forces induced on the pipe as the surrounding ground undergoes permanent deformation. The properties of EPS Geofoam have distinct advantages that lead to improved pipe performance during large ground deformation. The most important of these are its low unit weight and relatively high compressibility. These advantages are the primary focus of this research. Further, the interaction of a pipe and EPS Geofoam was explored and analyzed in a loading case where the pipe was pushed directly into the EPS. In addition to laboratory-scale tests, full-scale tests were conducted with vertical and horizontal plane strain movement of pipe interacting with EPS Geofoam cover systems. Subsequently, numerical modeling was done of the field tests to further evaluate the use of an EPS cover system for applications experiencing large, permanent deformation. The results of the research program have shown that EPS Geofoam can be used as a cover system for steel pipelines crossings at active normal faults, or for other types of permanent ground deformation where the expected offset is predominately vertical.
Subjects/Keywords: EPS; Faults; Geofoam; Geosynthetics; Pipelines; Protection
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lingwall, B. N. (2011). Development of an expanded polystyrene geofoam cover system for pipelines at fault crossings. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/5/rec/708
Chicago Manual of Style (16th Edition):
Lingwall, Bret Nils. “Development of an expanded polystyrene geofoam cover system for pipelines at fault crossings.” 2011. Doctoral Dissertation, University of Utah. Accessed January 23, 2020.
http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/5/rec/708.
MLA Handbook (7th Edition):
Lingwall, Bret Nils. “Development of an expanded polystyrene geofoam cover system for pipelines at fault crossings.” 2011. Web. 23 Jan 2020.
Vancouver:
Lingwall BN. Development of an expanded polystyrene geofoam cover system for pipelines at fault crossings. [Internet] [Doctoral dissertation]. University of Utah; 2011. [cited 2020 Jan 23].
Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/5/rec/708.
Council of Science Editors:
Lingwall BN. Development of an expanded polystyrene geofoam cover system for pipelines at fault crossings. [Doctoral Dissertation]. University of Utah; 2011. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/5/rec/708
13.
Wloka, Markus.
Rheologische Untersuchungen an
nativen Biofilmen von Pseudomonas aeruginosa.
Degree: 2006, Technische Universität Dortmund
URL: http://hdl.handle.net/2003/22593
► Biofilme sind die universelle Lebensform von Mikroorganismen. Erst gegen Ende des 20. Jahrhunderts wurde intensiver mit ihrer Untersuchung begonnen. Über viele grundlegende Mechanismen herrscht auch…
(more)
▼ Biofilme sind die universelle
Lebensform von Mikroorganismen. Erst gegen Ende des 20.
Jahrhunderts wurde intensiver mit ihrer Untersuchung begonnen. Über
viele grundlegende Mechanismen herrscht auch heute noch
Ungewissheit. Als Biofilme bezeichnet man unterschiedliche
mikrobielle Aggregate. Gemeinsames Kennzeichen ist das Einbetten
der Organismen in eine dreidimensionale Matrix aus extrazellulären
polymeren Substanzen (
EPS). Diese Matrix hält die Mikroorganismen
zusammen, und ermöglicht ggf. eine Bindung an den Oberflächen.
Biofilme können sich an diversen Grenzflächen zwischen festen,
flüssigen und gasförmigen Medien bilden und so an Geräten, in
Rohrleitungen oder an Oberflächen auch enormen wirtschaftlichen
Schaden anrichten. In der rheologischen Studie wurden Biofilme des
Bakteriums Pseudomonas aeruginosa untersucht, und mechanische
Eigenschaften der
EPS Matrixstruktur charakterisiert. Neben
transienten Fließeigenschaften wurden auch die Einflüsse von
positiv geladenen Ionen wie Kalzium, Magnesium und Mangan auf die
Netzwerkstabilität gemessen. Die Biofilme zeigten viskoelastisches
Verhalten mit Netzwerkpunkten, die durch Verschlaufungen verursacht
wurden. Bei Frequenztests wurden Plateaubereiche mit
Gleichgewichtsschermodulwerten zwischen 17 und 210 Pa bei 24h alten
Biofilmen, in Abhängigkeit von der molekularen Struktur der
EPS
beobachtet. Der Einfluss von Ionen führte in Abhängigkeit der
Konzentration zu fest vernetzten Systemen ohne Relaxation. Der
Einfluss von Strukturmerkmalen des Alginates auf die mechanische
Stabilität der
EPS Matrix wurde beispielhaft an den Stämmen FRD1
und FRD1153 untersucht. Die Abwesenheit von Acetylgruppen in den
Alginatketten von P. aeruginosa FRD1153 zeigte sich in schwächeren
Netzwerkstrukturen und kleineren Plateauwerten im Vergleich zu
FRD1. Relaxationsprozesse führten zu einer mittleren Lebensdauer
der Verbindungspunkte zwischen 110 ms und 17 s. Die Zugabe von
mehrwertigen Gegenionen induzierte stabile Verbindungspunkte über
Coulombsche Kräfte, die allerdings unterschiedlich stabil waren.
Die Resultate können für Modelle genutzt werden, die Biofilme in
natürlicher Umgebung beschreiben, oder alternativ Informationen zur
Entwicklung neuer Medikamente oder Reiniger liefern, sobald die
Mikromechanismen der Biofilmbildung und Stabilität geklärt
sind.
Advisors/Committee Members: Rehage, Heinz.
Subjects/Keywords: Biofilm; EPS; Pseudomonas
aeruginosa; Rheologie; 540
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APA ·
Chicago ·
MLA ·
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Export
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Manager
APA (6th Edition):
Wloka, M. (2006). Rheologische Untersuchungen an
nativen Biofilmen von Pseudomonas aeruginosa. (Thesis). Technische Universität Dortmund. Retrieved from http://hdl.handle.net/2003/22593
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):
Wloka, Markus. “Rheologische Untersuchungen an
nativen Biofilmen von Pseudomonas aeruginosa.” 2006. Thesis, Technische Universität Dortmund. Accessed January 23, 2020.
http://hdl.handle.net/2003/22593.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wloka, Markus. “Rheologische Untersuchungen an
nativen Biofilmen von Pseudomonas aeruginosa.” 2006. Web. 23 Jan 2020.
Vancouver:
Wloka M. Rheologische Untersuchungen an
nativen Biofilmen von Pseudomonas aeruginosa. [Internet] [Thesis]. Technische Universität Dortmund; 2006. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/2003/22593.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wloka M. Rheologische Untersuchungen an
nativen Biofilmen von Pseudomonas aeruginosa. [Thesis]. Technische Universität Dortmund; 2006. Available from: http://hdl.handle.net/2003/22593
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
14.
Wilson, Carolyn E.
Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay.
Degree: 2010, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7146
► Benthic microalgae (BMA) living within the surface sediment of salt marshes are highly productive organisms that provide a significant proportion of organic carbon inputs into…
(more)
▼ Benthic microalgae (BMA) living within the surface sediment of salt marshes are
highly productive organisms that provide a significant proportion of organic carbon
inputs into estuarine systems. BMA secrete extracellular carbohydrates in the form of
low molecular weight carbohydrates and extracellular polymeric substances (
EPS) as
they migrate within the sediment.
EPS plays an important role in the structure and
function of BMA biofilms in shallow-water systems as
EPS affects habitat structure,
stabilizes the sediment, reduces sediment erosion, and is a carbon source for organisms.
This study looked at the effect of nutrients and carbohydrate additions on BMA
biomass, bacterial biomass, carbohydrate production, and glycosidase activity in the
surface 5 mm of intertidal sediment in a subtropical salt marsh (Galveston Bay, Texas).
Nitrogen and phosphorus were added to cores collected from the salt marsh and
incubated in the lab over four days. Very little change was seen in the biomass of the
benthic microalgae or in the different carbohydrate fractions with the added nutrients.
The mean chlorophyll a concentration was 13 +/- 5 ug g-1 sediment, the mean saline
extractable carbohydrate concentration was 237 +/- 113 ug g-1 sediment, and the mean
EPS concentration was 48 +/- 25 ug g-1 sediment. The chlorophyll a and saline
extractable carbohydrate concentrations initially decreased over the first 24 hours, but
then increased over the rest of the experiment, indicating a possible species
compositional shift in the BMA. With no major response with nutrient additions, it is
likely that a different environmental factor is limiting for the growth of the benthic
microalgae, and therefore the production of sEPS, in this salt marsh.
A series of experiments was conducted in situ by adding glucose, alginic acid,
and phosphorus to sediment within experimental plots. Samples were taken periodically
over three to seven days to determine the biomass of the microbial community, enzyme
activities and kinetics, and changes in the concentrations of several sediment
carbohydrate pools. u-glucosidase activities (15 +/- 3 nmol g-1 h-1) were significantly
higher than u-xylosidase (6 +/- 2 nmol g-1 h-1) and u-galactosidase (8 +/- 2 nmol g-1 h-1)
activities within the sediment, and there was no suppression of u-glucosidase activity
measured with the glucose addition. These data represent the first measurement of u-
xylosidase and u-galactosidase activity in intertidal sediment dominated by BMA.
Although preliminary experiments suggested a possible phosphorus limitation within the
sediment, there was little change in the bacteria abundance or the benthic microalgae
biomass when phosphorus was added in situ.
This study begins to illustrate the dynamics of carbohydrate production and loss
in this salt marsh, and the ability for the microbial community in the salt marshes of
Galveston Bay to adjust to the nutrient and carbohydrate treatments.
Advisors/Committee Members: Thornton, Daniel C. (advisor), Bianchi, Thomas S. (committee member), Davis, Stephen E. (committee member).
Subjects/Keywords: benthic microalgae; EPS; extracellular enzymes; nutrient enrichment
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APA (6th Edition):
Wilson, C. E. (2010). Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7146
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):
Wilson, Carolyn E. “Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay.” 2010. Thesis, Texas A&M University. Accessed January 23, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7146.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wilson, Carolyn E. “Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay.” 2010. Web. 23 Jan 2020.
Vancouver:
Wilson CE. Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay. [Internet] [Thesis]. Texas A&M University; 2010. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7146.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wilson CE. Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay. [Thesis]. Texas A&M University; 2010. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7146
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
15.
Assaf, Tarek.
La place des jeux traditionnels dans l'EPS : analyse socio-historique de 1891 à nos jours; le cas de la Gironde : Formal modelling and verification of multimodal human computer interfaces : output multimodality.
Degree: Docteur es, Sciences et techniques des activités physiques et sportives, 2010, Université de Bordeaux Segalen
URL: http://www.theses.fr/2010BOR21708
► Quelles raisons écartent les jeux traditionnels des séances d’éducation physique et sportive (EPS) ? Doit-on y voir l’absence d’utilité éducative ? Il serait vain de…
(more)
▼ Quelles raisons écartent les jeux traditionnels des séances d’éducation physique et sportive (EPS) ? Doit-on y voir l’absence d’utilité éducative ? Il serait vain de perdre du temps en recourant à des pratiques pédagogiques dépassées. Les jeux, c’était avant. Maintenant on fait du sport. Le jeu dérange car il suscite des émotions envahissantes et des réactions mutines que le sport réussit à endiguer. La thèse traite de la place des jeux traditionnels en EPS et dans les textes officiels depuis la naissance de celle-ci à la fin du XVIII siècle. Ce travail de recherche porte aussi sur la signification des jeux et leurs intérêts, du point de vue des philosophes, des psychologies, des anthropologies. De même, l’approche des jeux traditionnels ou la part de la motricité est central s’appuie sur les concepts et les modèles proposés par Pierre Parlebas. Enfin, nous proposons une enquête visant à mettre en évidence la place mineure occupée par les jeux traditionnels dans le monde scolaire. Pourquoi le jeu est-il mis à l’index en EPS ? Le manque d’intérêt pour ces jeux, qui s’accroit à mesure que l’élève se déplace dans sa scolarité et grandit est mis en relation avec les variables sociodémographiques, avec l’influence du sport et le poids des normes didactiques. Sont également retenues comme variables indépendantes la formation initiale des enseignants, le jugement porte par ceux-ci sur l’engagement énergétique des élèves, et l’influence de la modernité technologique.
What reasons justify the absence of traditional games in scholastic sessions of Physical and Sports Education (PSE)? Should we witness the absence of an educational tool without questioning the reasons behind its absence? Moreover, it would be unproductive to spend time resorting to outdated sports practices. Games belong to the realms of the past. Nowadays, we play sports. While games are disruptive because they provoke uncontrollable emotions, sports activities contain these unruly emotions and helps in channeling them out. This dissertation studies the importance of traditional games in the PSE and in official textbooks since the creation of traditional games at the end of the eighteenth century. This research study also traces the significance and effects of games as outlined by philosophers, psychologists, and anthropologists. Moreover, this study follows Pierre Palebas’s model that highlights the centrality of motricity in the analysis of traditional games. I also propose in this study the creation of a survey that quantitatively proves the marginal position that traditional games occupy in the scholastic world. Why are games, for instance, relegated to the appendices of the PSE? The lack of interest in these traditional games—a lack which presupposes that a student shifts interests in their academic progress as they grow up—is put in juxtaposition with sociodemophrahic variables, in addition to the influence of sports in general and the effect of didactic norms. This study considers all these factors as independent variables influenced by the training…
Advisors/Committee Members: Menaut, André (thesis director).
Subjects/Keywords: Jeu; Jeux traditionnels; Sport; Eps; Manuel scolaire
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Assaf, T. (2010). La place des jeux traditionnels dans l'EPS : analyse socio-historique de 1891 à nos jours; le cas de la Gironde : Formal modelling and verification of multimodal human computer interfaces : output multimodality. (Doctoral Dissertation). Université de Bordeaux Segalen. Retrieved from http://www.theses.fr/2010BOR21708
Chicago Manual of Style (16th Edition):
Assaf, Tarek. “La place des jeux traditionnels dans l'EPS : analyse socio-historique de 1891 à nos jours; le cas de la Gironde : Formal modelling and verification of multimodal human computer interfaces : output multimodality.” 2010. Doctoral Dissertation, Université de Bordeaux Segalen. Accessed January 23, 2020.
http://www.theses.fr/2010BOR21708.
MLA Handbook (7th Edition):
Assaf, Tarek. “La place des jeux traditionnels dans l'EPS : analyse socio-historique de 1891 à nos jours; le cas de la Gironde : Formal modelling and verification of multimodal human computer interfaces : output multimodality.” 2010. Web. 23 Jan 2020.
Vancouver:
Assaf T. La place des jeux traditionnels dans l'EPS : analyse socio-historique de 1891 à nos jours; le cas de la Gironde : Formal modelling and verification of multimodal human computer interfaces : output multimodality. [Internet] [Doctoral dissertation]. Université de Bordeaux Segalen; 2010. [cited 2020 Jan 23].
Available from: http://www.theses.fr/2010BOR21708.
Council of Science Editors:
Assaf T. La place des jeux traditionnels dans l'EPS : analyse socio-historique de 1891 à nos jours; le cas de la Gironde : Formal modelling and verification of multimodal human computer interfaces : output multimodality. [Doctoral Dissertation]. Université de Bordeaux Segalen; 2010. Available from: http://www.theses.fr/2010BOR21708
Universidade Nova
16.
Dall’Agnol, Leonardo Teixeira.
Deeper insights into SRB-driven biocorrosion mechanisms.
Degree: 2013, Universidade Nova
URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/10424
► Dissertação para obtenção do Grau de Doutor em Química Sustentável
Microbially Influenced Corrosion (MIC) is recognized as an important category of corrosion and represents one…
(more)
▼ Dissertação para obtenção do Grau de Doutor em
Química Sustentável
Microbially Influenced Corrosion (MIC) is recognized as an important category of corrosion and represents one of the most challenging to study and prevent. In biocorrosion, Sulphate Reducing Bacteria (SRB) are the best suited organisms because its ability to produce biogenic hydrogen sulphide. Still little is known about the mechanisms related to corrosion involving those microorganisms. In that regard, this thesis describes the analysis of the interactions, and its consequences, between Desulfovibrio desulfuricans ATCC 27774 and metal surfaces using electrochemistry, of surface analysis and biochemical techniques.
The Open Circuit Potential (OCP) showed that the equilibrium of sulphide in the solution/gas phases is a key factor on determining the evolution of the corrosion process. Also it have been demonstrated that, although the trend in the behaviours remains, long measurements periods are necessary to avoid overestimations when dealing with biocorrosion. Our results also indicate that the nitrate injection strategy in oil fields has to be considered carefully as it can increase the uniform corrosion and the SRB population growth rate.
High-throughput analysis techniques were used to characterize the surface of metal plates after incubation with SRB with different respiratory substrate. The precipitation of inorganic salts as calcium and phosphates, has been detected in the samples incubated in sulphate and could be related to iron dissolution areas in the metal surface. Also micropitting underneath the bacteria cells could be observed when the bacteria were incubated. In nitrate medium, a high concentration of precipitated chloride ions was observed on the surface which could be responsible for the enhanced corrosions rates observed.
The Extracellular Polymeric Substance chemical composition corroborated the previous results regarding the iron uptake and the influence of phosphates and other functional groups in the corrosion process. The protein profile characterization has demonstrated heterogeneity of the expressed proteins depending on the respiratory substrate.
Project BIOCOR ITN, "People" Programme, under grant agreement n° 238579
Advisors/Committee Members: Moura, José J. G..
Subjects/Keywords: Biocorrosion; EPS; Iron uptake; SRB; Surface analysis
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APA (6th Edition):
Dall’Agnol, L. T. (2013). Deeper insights into SRB-driven biocorrosion mechanisms. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/10424
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):
Dall’Agnol, Leonardo Teixeira. “Deeper insights into SRB-driven biocorrosion mechanisms.” 2013. Thesis, Universidade Nova. Accessed January 23, 2020.
http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/10424.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dall’Agnol, Leonardo Teixeira. “Deeper insights into SRB-driven biocorrosion mechanisms.” 2013. Web. 23 Jan 2020.
Vancouver:
Dall’Agnol LT. Deeper insights into SRB-driven biocorrosion mechanisms. [Internet] [Thesis]. Universidade Nova; 2013. [cited 2020 Jan 23].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/10424.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dall’Agnol LT. Deeper insights into SRB-driven biocorrosion mechanisms. [Thesis]. Universidade Nova; 2013. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/10424
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Virginia Tech
17.
Wallace, Regina Ann.
CRISPR3 Regulates Exopolysaccharide Production in Myxococcus xanthus.
Degree: MS, Biological Sciences, 2013, Virginia Tech
URL: http://hdl.handle.net/10919/51670
► Myxococcus xanthus, a model organism for studying development and Type IV pili (T4P), harbors three Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) on its chromosome.…
(more)
▼ Myxococcus xanthus, a model organism for studying development and Type IV pili (T4P), harbors three Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) on its chromosome. CRISPR systems, which function as an adaptive immune system in prokaryotes, are classified into three types based on CRISPR-associated genes. Evidence suggests that these three types mediate immunity slightly differently. M. xanthus CRISPR1 and CRISPR2 are Type I systems while CRISPR3 is a Type III-B system. In a genetic screen, a mariner transposon insertion in the 13th spacer of CRISPR3 (3SP13) was found to restore exopolysaccharide (
EPS) production to a pilA mutant. Since the deletion of CRISPR3 failed to suppress a pilA mutation and expression of CRISPR3 from a heterologous promoter led to pilA suppression, it was concluded that the 3SP13 transposon insertion is a gain-of-function mutation. Deletion of the adjacent Repeat Associated Mysterious Proteins (RAMP) genes indicated that they are essential for the 3SP13 transposon insertion to suppress pilA, providing evidence that Type III-B systems may be involved in the regulation of chromosomal genes. We suggest that one of the spacers, once expressed and processed, may inhibit the expression of a negative regulator of
EPS production in M. xanthus.
Advisors/Committee Members: Yang, Zhaomin (committeechair), Scharf, Birgit (committee member), Winkel, Brenda Sophia J. (committee member), Capelluto, Daniel G. (committee member).
Subjects/Keywords: Myxococcus xanthus; exopolysaccharide (EPS); pilA; CRISPR; RAMP
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APA ·
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Export
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Manager
APA (6th Edition):
Wallace, R. A. (2013). CRISPR3 Regulates Exopolysaccharide Production in Myxococcus xanthus. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/51670
Chicago Manual of Style (16th Edition):
Wallace, Regina Ann. “CRISPR3 Regulates Exopolysaccharide Production in Myxococcus xanthus.” 2013. Masters Thesis, Virginia Tech. Accessed January 23, 2020.
http://hdl.handle.net/10919/51670.
MLA Handbook (7th Edition):
Wallace, Regina Ann. “CRISPR3 Regulates Exopolysaccharide Production in Myxococcus xanthus.” 2013. Web. 23 Jan 2020.
Vancouver:
Wallace RA. CRISPR3 Regulates Exopolysaccharide Production in Myxococcus xanthus. [Internet] [Masters thesis]. Virginia Tech; 2013. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/10919/51670.
Council of Science Editors:
Wallace RA. CRISPR3 Regulates Exopolysaccharide Production in Myxococcus xanthus. [Masters Thesis]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/51670
King Abdullah University of Science and Technology
18.
Mines, Paul.
Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale.
Degree: 2012, King Abdullah University of Science and Technology
URL: http://hdl.handle.net/10754/255432
► The biological process known as activated sludge (AS) in conjunction with membrane separation technology for the treatment of wastewater has been employed for over four…
(more)
▼ The biological process known as activated sludge (AS) in conjunction with
membrane separation technology for the treatment of wastewater has been
employed for over four decades. While, membrane biological reactors (MBR) are
now widely employed, the phenomenon of membrane fouling is still the most
significant factor leading to performance decline of MBRs. Although much research
has been done on the subject of MBR fouling over the past two decades, many
questions remain unanswered, and consensus within the scientific community is
rare. However, research has led to one system parameter generally being regarded
as a contributor to membrane fouling, extracellular polymeric compounds (EPS).
EPS, and more specifically, the soluble fraction of EPS known as soluble microbial
products (SMP), must be further investigated in order to better understand
membrane fouling. The biological activity and performance of the MBR is affected
by myriad operational parameters, which in turn affects the SMP generated. A
commonly varied operational parameter is, depending on the specific treatment
needs of a MBR, the sludge retention time (SRT). This study aims to characterize the
SMP in three bench-scale MBRs as the SRT is gradually lowered. By studying how the SMP change as the operation of the system is altered, greater understanding of
how SMP are related to fouling can be achieved. At the onset of the study, a steady
state was established in the system with a SRT of 20 days. Upon stabilization of a 20
day SRT, the system was gradually transitioned to a five and a half day SRT, in stepwise
adjustments. Initially, both the trans-membrane pressure (TMP) and the SMP
concentrations were at relatively low values, indicating the presence of minimal
amounts of biofilm on the membrane surfaces. As the system was altered and more
activated sludge was wasted from the reactors, the SRT inherently decreased. As
the lower SRT was transitioned and established, the data from TMP measurements,
as well as the results from SMP determination, confirmed the development of
increased amounts of biofilm formed. An apparent relationship was observed
between the operational condition of a lower SRT and the SMP found in the system.
Subjects/Keywords: MBR; Waste water; SMP; SRT; EPS
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APA ·
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Export
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Manager
APA (6th Edition):
Mines, P. (2012). Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/255432
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):
Mines, Paul. “Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale.” 2012. Thesis, King Abdullah University of Science and Technology. Accessed January 23, 2020.
http://hdl.handle.net/10754/255432.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mines, Paul. “Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale.” 2012. Web. 23 Jan 2020.
Vancouver:
Mines P. Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2012. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/10754/255432.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mines P. Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale. [Thesis]. King Abdullah University of Science and Technology; 2012. Available from: http://hdl.handle.net/10754/255432
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Delft University of Technology
19.
Castelijn, T.
Self-supporting sandwich element for freeform building envelopes:.
Degree: 2011, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:92131262-6697-430a-adb5-5b34a4ee7c02
Design for a custom CNC wire-cut sandwich element from EPS and fibre glass reinforced epoxy. Algoritmic model for generation of custom elements.
Advisors/Committee Members: Stouffs, R.M.F., Schipper, H.R..Subjects/Keywords: parametric; CAM; CNC; epoxy; EPS; algorithm
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APA (6th Edition):
Castelijn, T. (2011). Self-supporting sandwich element for freeform building envelopes:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:92131262-6697-430a-adb5-5b34a4ee7c02
Chicago Manual of Style (16th Edition):
Castelijn, T. “Self-supporting sandwich element for freeform building envelopes:.” 2011. Masters Thesis, Delft University of Technology. Accessed January 23, 2020.
http://resolver.tudelft.nl/uuid:92131262-6697-430a-adb5-5b34a4ee7c02.
MLA Handbook (7th Edition):
Castelijn, T. “Self-supporting sandwich element for freeform building envelopes:.” 2011. Web. 23 Jan 2020.
Vancouver:
Castelijn T. Self-supporting sandwich element for freeform building envelopes:. [Internet] [Masters thesis]. Delft University of Technology; 2011. [cited 2020 Jan 23].
Available from: http://resolver.tudelft.nl/uuid:92131262-6697-430a-adb5-5b34a4ee7c02.
Council of Science Editors:
Castelijn T. Self-supporting sandwich element for freeform building envelopes:. [Masters Thesis]. Delft University of Technology; 2011. Available from: http://resolver.tudelft.nl/uuid:92131262-6697-430a-adb5-5b34a4ee7c02
Delft University of Technology
20.
Sezer, T.
Electric power steering: Recreating steering feel:.
Degree: 2015, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:8ad3ba93-f761-468a-8498-54e620f6fe77
► Application of electronics in the automotive industry is extensively spreading. Electric power steering is hereby an exciting improvement to steering systems since the introduction of…
(more)
▼ Application of electronics in the automotive industry is extensively spreading. Electric power steering is hereby an exciting improvement to steering systems since the introduction of hydraulic power steering systems, which was first introduced as early as 1970s. Drivers desire hydraulic power steering behaviour because of its natural feel while providing assistance, but it has many disadvantages such as component lifecycle, oil leaks and power consumption. The use of electronic power steering provides the opportunity to remove such problems associated to hydraulic power steering and introduce benefits in terms of adaptability, comfort and safety. Since today's vehicles are making use of the by-wire technology for most components in the car, the additional electronic power steering will make it possible to have a full range of automated driving aids.
Even though electric power steering comes with many advantages, there are still some disadvantages which are mentioned in numerous articles. These problems are mostly described as a lack in steering feel. More precisely it's described as if the front wheels are disconnected from the ground wheels. Many studies show different algorithms to minimise this, however it can be seen that even in the most successful products there is some complaint about this.
An important tool to analyse this problem is the use of driving simulators. The implementation of a steering model that maintains high fidelity dynamics will bring many advantages. At the moment steering systems are developed by vehicle testing which is considered expensive and time consuming. The study of steering models will give more insight for the development in steering systems and the implementation in a HIL-simulator will ease the process of steering system development.
This thesis will show the implementation of a steering model in a high fidelity steering simulator and it will propose a different method for solving the problem of steering feel loss. Finally it will conclude with driver in the loop experiments to show and evaluate the proposed method.
Advisors/Committee Members: Holweg, E.G.M., Arat, M.A., Shyrokau, B..
Subjects/Keywords: EPS; electric power steering; steering feel
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APA ·
Chicago ·
MLA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sezer, T. (2015). Electric power steering: Recreating steering feel:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:8ad3ba93-f761-468a-8498-54e620f6fe77
Chicago Manual of Style (16th Edition):
Sezer, T. “Electric power steering: Recreating steering feel:.” 2015. Masters Thesis, Delft University of Technology. Accessed January 23, 2020.
http://resolver.tudelft.nl/uuid:8ad3ba93-f761-468a-8498-54e620f6fe77.
MLA Handbook (7th Edition):
Sezer, T. “Electric power steering: Recreating steering feel:.” 2015. Web. 23 Jan 2020.
Vancouver:
Sezer T. Electric power steering: Recreating steering feel:. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2020 Jan 23].
Available from: http://resolver.tudelft.nl/uuid:8ad3ba93-f761-468a-8498-54e620f6fe77.
Council of Science Editors:
Sezer T. Electric power steering: Recreating steering feel:. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:8ad3ba93-f761-468a-8498-54e620f6fe77
21.
Jain, Rohan.
Biogenic nanoparticles of elemental selenium : synthesis, characterization and relevance in wastewater treatment : Nanoparticules de sélénium élémentaire d'origine biologique : synthèse, caractérisation et importance en traitement des eaux usées.
Degree: Docteur es, Sciences et Techniques de l'Environnement, 2014, Université Paris-Est
URL: http://www.theses.fr/2014PEST1178
► Les nanoparticules exposent beaucoup de propriétés uniques en comparaison de la possession de matériels (matières) en gros (vrac) à leur haute surface au ratio de…
(more)
▼ Les nanoparticules exposent beaucoup de propriétés uniques en comparaison de la possession de matériels (matières) en gros (vrac) à leur haute surface au ratio de volume. Des nanoparticules de sélénium élémentaires exposent aussi les nouvelles propriétés qui sont exploitées dans la formation de cellules solaires, des redresseurs de semi-conducteur et le déplacement (déménagement) de mercure et le cuivre. Cependant, la synthèse chimique de nanoparticules de sélénium élémentaires est coûteuse, exige des équipements spécialisés et utilise des produits chimiques toxiques. D'autre part, la production biologique de nanoparticules de sélénium élémentaires (BioSeNPs) peut être un remplacement(remplaçant) vert pour les chimiquement produits. BioSeNPs sont produit par la réduction microbienne de sélénite et selenate. La source du sélénium oxyanions peut être le wastewaters, où la réduction microbienne est employée comme une technologie de remédiation pour le déplacement (déménagement) de sélénium (...)
Nanoparticles exhibit many unique properties as compared to the bulk materials owning to their high surface to volume ratio. Elemental selenium nanoparticles also exhibit novel properties that are exploited in formation of solar cells, semiconductor rectifiers and removal of mercury and copper. However, the chemical synthesis of elemental selenium nanoparticles is costly, requires specialized equipments and uses toxic chemicals. On the other hand, biological production of elemental selenium nanoparticles (BioSeNPs) can be a green replacement for the chemically produced ones.BioSeNPs are produced by microbial reduction of selenite and selenate. The source of the selenium oxyanions can be the wastewaters, where microbial reduction is employed as a remediation technology for the removal of selenium. The formed BioSeNPs are colloidal poly-disperse particles with negative surface charge and are present in the effluent of the microbial reactor. However, the properties of these BioSeNPs are not very well understood. This knowledge would help us to produce better quality selenium nanomaterials, exploit produced BioSeNPs in the wastewater treatment and control the fate of these BioSeNPs in the microbial reactors. The characterization of BioSeNPs revealed the presence of the extracellular polymeric substances (EPS) on the surface of BioSeNPs. The EPS was identified to control the surface charge and to some extent the shape of the BioSeNPs. It was also found that the microbial reduction at 55 and 65 °C can lead to the formation of selenium nanowires as compared to nanospheres when the reduction takes place at 30 °C. These selenium nanowires are present in trigonal crystalline structure and are colloidal suspension, unlike the chemically formed trigonal selenium nanorods. This colloidal nature is due to negative ζ-potential values owning to the presence of EPS on the surface of biogenic selenium nanowires. Since proteins are a major component present in the EPS, the presence of various proteins on the surface of BioSeNPs was determined.…
Advisors/Committee Members: Rossano, Stéphanie (thesis director).
Subjects/Keywords: Selenium; Nanoparticles; Biogenic; Heavy metals; Bioreduction; Eps; Selenium; Nanoparticles; Biogenic production; Heavy metals; Bioreduction; Eps
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APA (6th Edition):
Jain, R. (2014). Biogenic nanoparticles of elemental selenium : synthesis, characterization and relevance in wastewater treatment : Nanoparticules de sélénium élémentaire d'origine biologique : synthèse, caractérisation et importance en traitement des eaux usées. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2014PEST1178
Chicago Manual of Style (16th Edition):
Jain, Rohan. “Biogenic nanoparticles of elemental selenium : synthesis, characterization and relevance in wastewater treatment : Nanoparticules de sélénium élémentaire d'origine biologique : synthèse, caractérisation et importance en traitement des eaux usées.” 2014. Doctoral Dissertation, Université Paris-Est. Accessed January 23, 2020.
http://www.theses.fr/2014PEST1178.
MLA Handbook (7th Edition):
Jain, Rohan. “Biogenic nanoparticles of elemental selenium : synthesis, characterization and relevance in wastewater treatment : Nanoparticules de sélénium élémentaire d'origine biologique : synthèse, caractérisation et importance en traitement des eaux usées.” 2014. Web. 23 Jan 2020.
Vancouver:
Jain R. Biogenic nanoparticles of elemental selenium : synthesis, characterization and relevance in wastewater treatment : Nanoparticules de sélénium élémentaire d'origine biologique : synthèse, caractérisation et importance en traitement des eaux usées. [Internet] [Doctoral dissertation]. Université Paris-Est; 2014. [cited 2020 Jan 23].
Available from: http://www.theses.fr/2014PEST1178.
Council of Science Editors:
Jain R. Biogenic nanoparticles of elemental selenium : synthesis, characterization and relevance in wastewater treatment : Nanoparticules de sélénium élémentaire d'origine biologique : synthèse, caractérisation et importance en traitement des eaux usées. [Doctoral Dissertation]. Université Paris-Est; 2014. Available from: http://www.theses.fr/2014PEST1178
22.
Kerke, van de, Sara Jacoba.
Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution.
Degree: 2019, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/556160
;
urn:nbn:nl:ui:32-556160
;
urn:nbn:nl:ui:32-556160
;
http://library.wur.nl/WebQuery/wurpubs/556160
Subjects/Keywords: Biosystematiek; Biosystematiek; EPS; Biosystematics; Biosystematics; EPS
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Chicago ·
MLA ·
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Export
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APA (6th Edition):
Kerke, van de, S. J. (2019). Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/556160 ; urn:nbn:nl:ui:32-556160 ; urn:nbn:nl:ui:32-556160 ; http://library.wur.nl/WebQuery/wurpubs/556160
Chicago Manual of Style (16th Edition):
Kerke, van de, Sara Jacoba. “Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution.” 2019. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/556160 ; urn:nbn:nl:ui:32-556160 ; urn:nbn:nl:ui:32-556160 ; http://library.wur.nl/WebQuery/wurpubs/556160.
MLA Handbook (7th Edition):
Kerke, van de, Sara Jacoba. “Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution.” 2019. Web. 23 Jan 2020.
Vancouver:
Kerke, van de SJ. Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution. [Internet] [Doctoral dissertation]. Wageningen University; 2019. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/556160 ; urn:nbn:nl:ui:32-556160 ; urn:nbn:nl:ui:32-556160 ; http://library.wur.nl/WebQuery/wurpubs/556160.
Council of Science Editors:
Kerke, van de SJ. Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution. [Doctoral Dissertation]. Wageningen University; 2019. Available from: http://library.wur.nl/WebQuery/wurpubs/556160 ; urn:nbn:nl:ui:32-556160 ; urn:nbn:nl:ui:32-556160 ; http://library.wur.nl/WebQuery/wurpubs/556160
23.
‘t Wout Hofland, van, Nicole.
The origin and evolution of vascular tissue regulators TMO5 and LHW.
Degree: 2019, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/554329
;
urn:nbn:nl:ui:32-554329
;
urn:nbn:nl:ui:32-554329
;
http://library.wur.nl/WebQuery/wurpubs/554329
Subjects/Keywords: Biochemie; Biochemie; EPS; Biochemistry; Biochemistry; EPS
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APA (6th Edition):
‘t Wout Hofland, van, N. (2019). The origin and evolution of vascular tissue regulators TMO5 and LHW. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/554329 ; urn:nbn:nl:ui:32-554329 ; urn:nbn:nl:ui:32-554329 ; http://library.wur.nl/WebQuery/wurpubs/554329
Chicago Manual of Style (16th Edition):
‘t Wout Hofland, van, Nicole. “The origin and evolution of vascular tissue regulators TMO5 and LHW.” 2019. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/554329 ; urn:nbn:nl:ui:32-554329 ; urn:nbn:nl:ui:32-554329 ; http://library.wur.nl/WebQuery/wurpubs/554329.
MLA Handbook (7th Edition):
‘t Wout Hofland, van, Nicole. “The origin and evolution of vascular tissue regulators TMO5 and LHW.” 2019. Web. 23 Jan 2020.
Vancouver:
‘t Wout Hofland, van N. The origin and evolution of vascular tissue regulators TMO5 and LHW. [Internet] [Doctoral dissertation]. Wageningen University; 2019. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/554329 ; urn:nbn:nl:ui:32-554329 ; urn:nbn:nl:ui:32-554329 ; http://library.wur.nl/WebQuery/wurpubs/554329.
Council of Science Editors:
‘t Wout Hofland, van N. The origin and evolution of vascular tissue regulators TMO5 and LHW. [Doctoral Dissertation]. Wageningen University; 2019. Available from: http://library.wur.nl/WebQuery/wurpubs/554329 ; urn:nbn:nl:ui:32-554329 ; urn:nbn:nl:ui:32-554329 ; http://library.wur.nl/WebQuery/wurpubs/554329
24.
Smit, Margot Evelien.
Unraveling the regulation of plant vascular identity.
Degree: 2019, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/551561
;
urn:nbn:nl:ui:32-551561
;
urn:nbn:nl:ui:32-551561
;
http://library.wur.nl/WebQuery/wurpubs/551561
► During plant embryogenesis, the future body plan of the plant is laid down. Part of this development is the specification of cell identities: the outer…
(more)
▼ During plant embryogenesis, the future body plan of the plant is laid down. Part of this development is the specification of cell identities: the outer epidermis, the middle ground tissue and the inner vascular cells. In this thesis we have looked at the genetic components that control plant vascular identity. We have traced back the first vascular cells to the 16-cell embryo and discovered that the development of vascular identity is not a single step but rather a multi-step process. Upstream of this multi-step process we discovered a large set of candidate regulators that control vascular identity. After focusing one of these candidates we now hypothesize that the protein GBF2 can regulate vascular gene expression. Together with proteins that act downstream of the plant hormone auxin, GBF2 interacts with specific DNA sequences to regulate the initiation of vascular development.
Advisors/Committee Members: Wageningen University, D. Weijers.
Subjects/Keywords: Biochemie; Biochemie; EPS; Biochemistry; Biochemistry; EPS
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APA (6th Edition):
Smit, M. E. (2019). Unraveling the regulation of plant vascular identity. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/551561 ; urn:nbn:nl:ui:32-551561 ; urn:nbn:nl:ui:32-551561 ; http://library.wur.nl/WebQuery/wurpubs/551561
Chicago Manual of Style (16th Edition):
Smit, Margot Evelien. “Unraveling the regulation of plant vascular identity.” 2019. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/551561 ; urn:nbn:nl:ui:32-551561 ; urn:nbn:nl:ui:32-551561 ; http://library.wur.nl/WebQuery/wurpubs/551561.
MLA Handbook (7th Edition):
Smit, Margot Evelien. “Unraveling the regulation of plant vascular identity.” 2019. Web. 23 Jan 2020.
Vancouver:
Smit ME. Unraveling the regulation of plant vascular identity. [Internet] [Doctoral dissertation]. Wageningen University; 2019. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/551561 ; urn:nbn:nl:ui:32-551561 ; urn:nbn:nl:ui:32-551561 ; http://library.wur.nl/WebQuery/wurpubs/551561.
Council of Science Editors:
Smit ME. Unraveling the regulation of plant vascular identity. [Doctoral Dissertation]. Wageningen University; 2019. Available from: http://library.wur.nl/WebQuery/wurpubs/551561 ; urn:nbn:nl:ui:32-551561 ; urn:nbn:nl:ui:32-551561 ; http://library.wur.nl/WebQuery/wurpubs/551561
25.
Sogbohossou, Dêêdi E.O.
Orphan no more : Ethnobotany and genetic analysis of leaf yield and secondary metabolites content in Gynandropsis gynandra (Cleomaceae).
Degree: 2019, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/557368
;
urn:nbn:nl:ui:32-557368
;
urn:nbn:nl:ui:32-557368
;
http://library.wur.nl/WebQuery/wurpubs/557368
Subjects/Keywords: Biosystematiek; Biosystematiek; EPS; Biosystematics; Biosystematics; EPS
Record Details
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APA (6th Edition):
Sogbohossou, D. E. O. (2019). Orphan no more : Ethnobotany and genetic analysis of leaf yield and secondary metabolites content in Gynandropsis gynandra (Cleomaceae). (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/557368 ; urn:nbn:nl:ui:32-557368 ; urn:nbn:nl:ui:32-557368 ; http://library.wur.nl/WebQuery/wurpubs/557368
Chicago Manual of Style (16th Edition):
Sogbohossou, Dêêdi E O. “Orphan no more : Ethnobotany and genetic analysis of leaf yield and secondary metabolites content in Gynandropsis gynandra (Cleomaceae).” 2019. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/557368 ; urn:nbn:nl:ui:32-557368 ; urn:nbn:nl:ui:32-557368 ; http://library.wur.nl/WebQuery/wurpubs/557368.
MLA Handbook (7th Edition):
Sogbohossou, Dêêdi E O. “Orphan no more : Ethnobotany and genetic analysis of leaf yield and secondary metabolites content in Gynandropsis gynandra (Cleomaceae).” 2019. Web. 23 Jan 2020.
Vancouver:
Sogbohossou DEO. Orphan no more : Ethnobotany and genetic analysis of leaf yield and secondary metabolites content in Gynandropsis gynandra (Cleomaceae). [Internet] [Doctoral dissertation]. Wageningen University; 2019. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/557368 ; urn:nbn:nl:ui:32-557368 ; urn:nbn:nl:ui:32-557368 ; http://library.wur.nl/WebQuery/wurpubs/557368.
Council of Science Editors:
Sogbohossou DEO. Orphan no more : Ethnobotany and genetic analysis of leaf yield and secondary metabolites content in Gynandropsis gynandra (Cleomaceae). [Doctoral Dissertation]. Wageningen University; 2019. Available from: http://library.wur.nl/WebQuery/wurpubs/557368 ; urn:nbn:nl:ui:32-557368 ; urn:nbn:nl:ui:32-557368 ; http://library.wur.nl/WebQuery/wurpubs/557368
Brno University of Technology
26.
Spiššák, Filip.
Kvalita služby v mobilných sieťach
.
Degree: 2016, Brno University of Technology
URL: http://hdl.handle.net/11012/59013
► Diplomová práca sa zaoberá problematikou zabezpečenia kvality služby (QoS) v mobilných sieťach EPS. Stručne je popísaná základná architektúra a charakteristické vlastnosti EPS. Definovaný je koncept…
(more)
▼ Diplomová práca sa zaoberá problematikou zabezpečenia kvality služby (QoS) v mobilných sieťach
EPS. Stručne je popísaná základná architektúra a charakteristické vlastnosti
EPS. Definovaný je koncept QoS. Následne sú popísané prvky, ich funkcie a procedúry spojené so zabezpečením kvality služby v
EPS. Navrhnutá je metodika merania a vyhodnocovania QoS z pohľadu používateľa naprieč celou mobilnou sieťou. Táto metodika je aplikovaná v rámci experimentálnej siete na UTKO FEKT VUT v Brne. Napokon je navrhnutá konfigurácia pre optimalizáciu podpory QoS v experimentálnej sieti.; This thesis deals with the quality of service (QoS) mechanism in Evolved Packet System (
EPS). The basic architecture and characteristics of the
EPS are introduced. The concept of QoS is defined. Furthermore, QoS related entities, their functions and corresponding procedures are described. The methodology for measuring and evaluating of end-to-end QoS as seen from a user’s point of view is designed. This methodology is used to measure QoS of experimental cellular network at UTKO FEEC BUT. Finally, configuration change for optimizing the QoS support of experimental cellular network is designed.
Advisors/Committee Members: Krkoš, Radko (advisor).
Subjects/Keywords: kvalita služby;
QoS;
EPS;
LTE;
PCC;
quality of service;
QoS;
EPS;
LTE;
PCC
Record Details
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APA ·
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MLA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Spiššák, F. (2016). Kvalita služby v mobilných sieťach
. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/59013
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):
Spiššák, Filip. “Kvalita služby v mobilných sieťach
.” 2016. Thesis, Brno University of Technology. Accessed January 23, 2020.
http://hdl.handle.net/11012/59013.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Spiššák, Filip. “Kvalita služby v mobilných sieťach
.” 2016. Web. 23 Jan 2020.
Vancouver:
Spiššák F. Kvalita služby v mobilných sieťach
. [Internet] [Thesis]. Brno University of Technology; 2016. [cited 2020 Jan 23].
Available from: http://hdl.handle.net/11012/59013.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Spiššák F. Kvalita služby v mobilných sieťach
. [Thesis]. Brno University of Technology; 2016. Available from: http://hdl.handle.net/11012/59013
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
27.
Liao, Che-Yang.
Cellular reorganization in auxin-dependent pattern formation during early embryogenesis in Arabidopsis thaliana.
Degree: 2018, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/544657
;
urn:nbn:nl:ui:32-544657
;
urn:nbn:nl:ui:32-544657
;
http://library.wur.nl/WebQuery/wurpubs/544657
► A fundamental question in developmental biology is how the complex cellular pattern in multicellular organisms arises from a single cell. In land plants, the biosynthesis,…
(more)
▼ A fundamental question in developmental biology is how the complex cellular pattern in multicellular organisms arises from a single cell. In land plants, the biosynthesis, transport, and signaling of phytohormone auxin is essential for pattern formation in embryogenesis. In Chapter 1, a brief introduction on plant embryogenesis, the roles of auxin signaling in pattern formation in early embryo, cellular basis on oriented cell division, and auxin-regulated oriented cell division during early embryogenesis are described as the foundation of this thesis aimed to answer the domain and cellular structures regulated by auxin that lead precise pattern formation during early embryo development of Arabidopsis thaliana. In Chapter 2, two novel fluorescent protein-based reporters for auxin perception and response, respectively, were developed to overcome technical bottlenecks for dissecting auxin signaling in embryos. The novel reporters offer higher sensitivity and responsiveness compared to existing tools. Our reporters revealed the gradients and maxima of auxin perception and response that had been hypothesized, but not yet detected. In addition, these new tools now offer a wider scope of application beyond the embryo and are generic tools for the auxin biology research community. In Chapter 3, the auxin reporters described in the previous chapter were improved to overcome their limitations, and the first comprehensive auxin reporter that was able to simultaneously visualize both auxin perception and response was characterized. With this new auxin reporter, the differential auxin signaling capacity between different cell types and differentiation states was demonstrated. In addition, the reporter for auxin response described in the previous chapter was applied in mutant embryos with a local auxin response defect, revealing its broad impact on auxin output. In Chapter 4, a toolkit of fluorescent protein-based markers labeling specific cellular structures was established. The structures included the plasma membrane, cytoskeletons, organelles, and the nucleus, structures excepted to participate in the oriented cell divisions that shape the early embryo. Expression of the protein markers was optimized for early Arabidopsis embryos, and topologies of subcellular structures were mapped during cellular reorganization in early embryogenesis. In addition, a specialized imaging technique was developed to allow high-resolution 3-dimensional imaging within the special embryo geometry. Combining the embryo-specific cellular structure marker set and the optimized imaging approach, 3-dimentional imaging of cellular structures in early embryos was achieved, and the dynamic organizations of organelles and cytoskeletons along with the unexpected discovery of early establishment of central/peripheral polarity in early embryos are described in this chapter. In Chapter 5, part of the toolkit established in the previous chapter was applied to embryos with inducible suppression on auxin response. Previously, it was shown that suppression of…
Advisors/Committee Members: Wageningen University, D. Weijers.
Subjects/Keywords: Biochemie; Biochemie; EPS; Biochemistry; Biochemistry; EPS
Record Details
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liao, C. (2018). Cellular reorganization in auxin-dependent pattern formation during early embryogenesis in Arabidopsis thaliana. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/544657 ; urn:nbn:nl:ui:32-544657 ; urn:nbn:nl:ui:32-544657 ; http://library.wur.nl/WebQuery/wurpubs/544657
Chicago Manual of Style (16th Edition):
Liao, Che-Yang. “Cellular reorganization in auxin-dependent pattern formation during early embryogenesis in Arabidopsis thaliana.” 2018. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/544657 ; urn:nbn:nl:ui:32-544657 ; urn:nbn:nl:ui:32-544657 ; http://library.wur.nl/WebQuery/wurpubs/544657.
MLA Handbook (7th Edition):
Liao, Che-Yang. “Cellular reorganization in auxin-dependent pattern formation during early embryogenesis in Arabidopsis thaliana.” 2018. Web. 23 Jan 2020.
Vancouver:
Liao C. Cellular reorganization in auxin-dependent pattern formation during early embryogenesis in Arabidopsis thaliana. [Internet] [Doctoral dissertation]. Wageningen University; 2018. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/544657 ; urn:nbn:nl:ui:32-544657 ; urn:nbn:nl:ui:32-544657 ; http://library.wur.nl/WebQuery/wurpubs/544657.
Council of Science Editors:
Liao C. Cellular reorganization in auxin-dependent pattern formation during early embryogenesis in Arabidopsis thaliana. [Doctoral Dissertation]. Wageningen University; 2018. Available from: http://library.wur.nl/WebQuery/wurpubs/544657 ; urn:nbn:nl:ui:32-544657 ; urn:nbn:nl:ui:32-544657 ; http://library.wur.nl/WebQuery/wurpubs/544657
28.
Smet, Wouter Marcel Sander.
Control of cell division orientation during vascular development in Arabidopsis thaliana.
Degree: 2018, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/543251
;
urn:nbn:nl:ui:32-543251
;
urn:nbn:nl:ui:32-543251
;
http://library.wur.nl/WebQuery/wurpubs/543251
► Growth of plants depends on cell division and elongation of the divided cells. After cell division, plant cells are fixed immediately within their tissue context. …
(more)
▼ Growth of plants depends on cell division and elongation of the divided cells. After cell division, plant cells are fixed immediately within their tissue context. Thus, a carefully positioning and orientation of the division plane is crucial for plants to properly pattern and grow. Anticlinal cell divisions result in more cells within a cell file and lead to longitudinal growth; while periclinal and radial divisions (PRD) result in the addition of cell files during radial growth. So far, how a cell controls the position and orientation of its division plane remains poorly understood. In this thesis we focused on a complex of two proteins called TMO5 and LHW that are capable of shifting the division plane orientation towards PRD. Our main aim was to identify which genes are activated by the TMO5/LHW complex and characterize these to understand how plant cells control the positioning and orientation of their cell divisions to allow normal growth. After introducing the main concepts and background information in Chapter 2, we continue to show in Chapter 3 how we generated and characterized an inducible line of TMO5 and LHW (dGR). We compared this line to the existing TMO5-LHW misexpression and overexpression lines and concluded we created an excellent tool to study cell division orientation. Because TMO5 and LHW are transcription factors, we next studied the transcriptional changes upon induction. While it is commonly assumed that the plant hormone cytokinin is required to control these divisions, we could prove that indeed cytokinin response is triggered upon induction of TMO5/LHW. In Chapter 4 we used the transcriptional data to select putative targets, which were verified using a misexpression screen. We identified DOF2.1 as a factor capable of inducing PRD and continued to show how DOF2.1 functions downstream of TMO5-LHW and controls division plane orientation during vascular development. Analysis of loss-of-function mutants of DOF2.1 and the two closest family members revealed these Dof-type TF family members act in a redundant manner to control PRD. Because our misexpression screen only yielded one factor controlling PRD, we reanalyzed our transcriptional data in Chapter 5 using an inferred network analysis algorithm. We generated a gene regulatory network which indicated that a novel family of bHLHs acts as key transcriptional hubs downstream of TMO5-LHW. We could confirm that some of these factors are indeed TMO5-LHW regulated and are part of the downstream cytokinin response. Overexpression of these bHLH did not result in any obvious phenotype; however we showed that they interact with members of a different family of bHLH TFs. This suggests that they might require this interaction in order to carry out their function. Loss-of-function of single genes did not reveal a clear phenotype, indicating that there is a high amount of redundancy within the novel bHLH subfamily. Analysis of higher order mutants will be required to identify the function of these bHLH genes. In conclusion, the identification of…
Advisors/Committee Members: Wageningen University, D. Weijers, B.P.M. De Rybel.
Subjects/Keywords: Biochemie; Biochemie; EPS; Biochemistry; Biochemistry; EPS
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APA (6th Edition):
Smet, W. M. S. (2018). Control of cell division orientation during vascular development in Arabidopsis thaliana. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/543251 ; urn:nbn:nl:ui:32-543251 ; urn:nbn:nl:ui:32-543251 ; http://library.wur.nl/WebQuery/wurpubs/543251
Chicago Manual of Style (16th Edition):
Smet, Wouter Marcel Sander. “Control of cell division orientation during vascular development in Arabidopsis thaliana.” 2018. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/543251 ; urn:nbn:nl:ui:32-543251 ; urn:nbn:nl:ui:32-543251 ; http://library.wur.nl/WebQuery/wurpubs/543251.
MLA Handbook (7th Edition):
Smet, Wouter Marcel Sander. “Control of cell division orientation during vascular development in Arabidopsis thaliana.” 2018. Web. 23 Jan 2020.
Vancouver:
Smet WMS. Control of cell division orientation during vascular development in Arabidopsis thaliana. [Internet] [Doctoral dissertation]. Wageningen University; 2018. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/543251 ; urn:nbn:nl:ui:32-543251 ; urn:nbn:nl:ui:32-543251 ; http://library.wur.nl/WebQuery/wurpubs/543251.
Council of Science Editors:
Smet WMS. Control of cell division orientation during vascular development in Arabidopsis thaliana. [Doctoral Dissertation]. Wageningen University; 2018. Available from: http://library.wur.nl/WebQuery/wurpubs/543251 ; urn:nbn:nl:ui:32-543251 ; urn:nbn:nl:ui:32-543251 ; http://library.wur.nl/WebQuery/wurpubs/543251
29.
Zhao, Tao.
Synteny-based phylogenomic networks for comparative genomics.
Degree: 2018, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/541109
;
urn:nbn:nl:ui:32-541109
;
urn:nbn:nl:ui:32-541109
;
http://library.wur.nl/WebQuery/wurpubs/541109
► For comparative genomics, relative gene orders or synteny holds key information to assess genomic innovations such as gene duplications, gene loss, or transpositions. While the…
(more)
▼ For comparative genomics, relative gene orders or synteny holds key information to assess genomic innovations such as gene duplications, gene loss, or transpositions. While the number of reference genomes is growing exponentially, a major challenge is how to detect, represent, and visualize synteny relations of any genes of interest effectively across a large number of genomes. In this thesis, I present six chapters centering on a network approach for large-scale phylogenomic synteny analysis, and discuss how such a network approach can enhance our understanding of the evolutionary history of genes and genomes across broad phylogenetic groups and divergence times. In Chapter 1, I stress that synteny information is becoming more important at this genomics age with rapidly developing DNA sequencing technologies. It provides us another layer of data besides merely sequences, and could potentially be better used to improve phylogeny. I also summarized current available tools and gave an example of popular websites for synteny detection. In Chapter 2, I propose an outline performing synteny network analysis, which is based on three primary steps: pairwise whole genome comparisons, syntenic block detection and data fusion, and network visualization. Then with comparison to a previous synteny comparison result which use traditional parallel coordinate plots, I show that the network approach could present us a much clear, strong, and systematic graph, with integrated synteny information from 101 broadly distributed species. In Chapter 3, we analyzed synteny networks of the entire MADS-box transcription factor gene family from fifty-one completed plant genomes. We applied a k-cliques percolation method to cluster the synteny network. We found lineage-specific clusters that derive from transposition events for the regulators of floral development (APETALA3 and PI) and flowering-time (FLC) in the Brassicales and for the regulators of root-development (AGL17) in Poales. We also visualized big difference of synteny properties between Type I MADS-box genes and Type II MADS-box genes. We identified two large gene clusters that jointly encompass many key phenotypic regulatory Type II MADS-box gene clades (SEP1, SQUA, TM8, SEP3, FLC, AGL6 and TM3). This allows for a better understanding of how evolution has acted on a key regulatory gene family in the plant kingdom. In Chapter 4, we performed synteny network analysis of LEA gene families, which includes eight different subfamilies (LEA_1 to LEA_6, SMP, and DHN) and has a relatively chaotic classification. Synteny clusters provide us better pictures of genomic innovations and function diversification. For example recurrent tandem duplications contributed to LEA_2 family expansion, whereas synteny and protein sequence were highly conserved during the evolution of LEA_5. In Chapter 5, instead of the analysis of a particular gene family, I scale up the analysis to all the genes from all available genomes across…
Advisors/Committee Members: Wageningen University, E. Schranz.
Subjects/Keywords: Biosystematiek; Biosystematiek; EPS; Biosystematics; Biosystematics; EPS
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhao, T. (2018). Synteny-based phylogenomic networks for comparative genomics. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/541109 ; urn:nbn:nl:ui:32-541109 ; urn:nbn:nl:ui:32-541109 ; http://library.wur.nl/WebQuery/wurpubs/541109
Chicago Manual of Style (16th Edition):
Zhao, Tao. “Synteny-based phylogenomic networks for comparative genomics.” 2018. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/541109 ; urn:nbn:nl:ui:32-541109 ; urn:nbn:nl:ui:32-541109 ; http://library.wur.nl/WebQuery/wurpubs/541109.
MLA Handbook (7th Edition):
Zhao, Tao. “Synteny-based phylogenomic networks for comparative genomics.” 2018. Web. 23 Jan 2020.
Vancouver:
Zhao T. Synteny-based phylogenomic networks for comparative genomics. [Internet] [Doctoral dissertation]. Wageningen University; 2018. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/541109 ; urn:nbn:nl:ui:32-541109 ; urn:nbn:nl:ui:32-541109 ; http://library.wur.nl/WebQuery/wurpubs/541109.
Council of Science Editors:
Zhao T. Synteny-based phylogenomic networks for comparative genomics. [Doctoral Dissertation]. Wageningen University; 2018. Available from: http://library.wur.nl/WebQuery/wurpubs/541109 ; urn:nbn:nl:ui:32-541109 ; urn:nbn:nl:ui:32-541109 ; http://library.wur.nl/WebQuery/wurpubs/541109
30.
Dop, van, Maritza.
Function, localization and evolution of SOSEKI polar proteins.
Degree: 2018, Wageningen University
URL: http://library.wur.nl/WebQuery/wurpubs/540861
;
urn:nbn:nl:ui:32-540861
;
urn:nbn:nl:ui:32-540861
;
http://library.wur.nl/WebQuery/wurpubs/540861
► The evolution of multi-cellular plants went hand in hand with the establishment of a complex polarity system to guide development and survival. Within the cell,…
(more)
▼ The evolution of multi-cellular plants went hand in hand with the establishment of a complex polarity system to guide development and survival. Within the cell, polarity cues need to be established, read and translated into sub-cellular processes. Yet, the exact mechanisms that translate polarity into sub-cellular processes remain elusive. In Chapter 1, we discuss polarity and several proteins that use polar information to guide their localization. The Arabidopsis embryo is introduced as an excellent model for studying cell polarity. In Chapter 2, we take a closer look at development of the Arabidopsis embryo. Hereby we focus specifically on how oriented divisions are generated by developmental regulators and the division machinery. Recent advancement in 3D imaging of the embryo revealed that cell division abides to a ‘smallest plane’ rule, and that auxin can prevent adherence to this rule. Studying how auxin effectors are linked to cell division regulators and cell polarity may provide a greater understanding of oriented cell division in the embryo. Using the Arabidopsis embryo as model for auxin-regulated development, we identify a novel family of polarly localized proteins in Chapter 3. Unlike previously published polar proteins, this new family shows a robust localization to specific cell edges, which coined the name SOSEKI (SOK, Japanese for cornerstone). SOK localization is guided by integration of plant-wide apico-basal and radial polarity. Pharmacological inhibition of pathways commonly used by polarly localized proteins showed that SOK is localized through a novel mechanism. Mis-expression of SOK1 caused oblique cell divisions and polar localization was required for this activity. We identified a highly conserved N-terminal domain that structurally resembles the DIX domain found in Wnt polarity signalling proteins in animals (Ehebauer & Arias, 2009; Schwarz-Romond et al., 2007). In animals, this domain shows autocatalytic polymerization. SOK1 DIX-LIKE can dimerize and is required for polar edge clustering and biological activity, which shows that the fundamental function of DIX is conserved. Taken together, this chapter revealed a compass of polar axes that guides SOK polar edge localization. In addition, we showed that both plants and animals use the DIX domain in the context of polarity. SOK showed striking localization and behavior, but nothing was known about the function of this protein family. In Chapter 4, we studied SOK function by generating sok mutants. We found that small mutations near the N-terminal end of SOK1 sometimes caused fertility defects, but that larger deletions had no effect. The sok1 deletion mutant showed upregulation of the SOK4 gene, which suggests that there may be a compensation mechanism or feedback loop. The potential redundancy between SOK1 and SOK4 led to further investigation of SOK expression and localization throughout the plant. Based on our findings, SOK2 and 3…
Advisors/Committee Members: Wageningen University, D. Weijers.
Subjects/Keywords: Biochemie; Biochemie; EPS; Biochemistry; Biochemistry; EPS
Record Details
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Record Details
Similar Records
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dop, van, M. (2018). Function, localization and evolution of SOSEKI polar proteins. (Doctoral Dissertation). Wageningen University. Retrieved from http://library.wur.nl/WebQuery/wurpubs/540861 ; urn:nbn:nl:ui:32-540861 ; urn:nbn:nl:ui:32-540861 ; http://library.wur.nl/WebQuery/wurpubs/540861
Chicago Manual of Style (16th Edition):
Dop, van, Maritza. “Function, localization and evolution of SOSEKI polar proteins.” 2018. Doctoral Dissertation, Wageningen University. Accessed January 23, 2020.
http://library.wur.nl/WebQuery/wurpubs/540861 ; urn:nbn:nl:ui:32-540861 ; urn:nbn:nl:ui:32-540861 ; http://library.wur.nl/WebQuery/wurpubs/540861.
MLA Handbook (7th Edition):
Dop, van, Maritza. “Function, localization and evolution of SOSEKI polar proteins.” 2018. Web. 23 Jan 2020.
Vancouver:
Dop, van M. Function, localization and evolution of SOSEKI polar proteins. [Internet] [Doctoral dissertation]. Wageningen University; 2018. [cited 2020 Jan 23].
Available from: http://library.wur.nl/WebQuery/wurpubs/540861 ; urn:nbn:nl:ui:32-540861 ; urn:nbn:nl:ui:32-540861 ; http://library.wur.nl/WebQuery/wurpubs/540861.
Council of Science Editors:
Dop, van M. Function, localization and evolution of SOSEKI polar proteins. [Doctoral Dissertation]. Wageningen University; 2018. Available from: http://library.wur.nl/WebQuery/wurpubs/540861 ; urn:nbn:nl:ui:32-540861 ; urn:nbn:nl:ui:32-540861 ; http://library.wur.nl/WebQuery/wurpubs/540861
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Open Access Theses and Dissertations