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University of Bradford
1.
Oladejo, Semiu Oladipupo.
Partial ordering of weak mutually unbiased bases in finite quantum systems.
Degree: PhD, 2015, University of Bradford
URL: http://hdl.handle.net/10454/14641 
► There has being an enormous work on finite quantum systems with variables in Zd, especially on mutually unbiased bases. The reason for this is due…
(more)
▼ There has being an enormous work on finite quantum systems with variables in Zd, especially on mutually unbiased bases. The reason for this is due to its wide areas of application. We focus on partial ordering of weak mutually un-biased bases. In it, we studied a partial ordered relation which exists between a subsystem ^(q) and a larger system ^(d) and also, between a subgeometry Gq and larger geometry Gd. Furthermore, we show an isomorphism between: (i) the set {Gd} of subgeometries of a finite geometry Gd and subsets of the set {D(d)} of divisors of d. (ii) the set {hd} of subspaces of a finite Hilbert space Hd and subsets of the set {D(d)} of divisors of d. (iii) the set {Y(d)} of subsystems of a finite quantum system ^(d) and subsets of the set {D(d)} of divisors of d. We conclude this work by showing a duality between lines in finite geometry Gd and weak mutually unbiased bases in finite dimensional Hilbert space Hd.
Subjects/Keywords: Finite quantum systems; Weak mutually unbiased bases; Finite geometry
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APA (6th Edition):
Oladejo, S. O. (2015). Partial ordering of weak mutually unbiased bases in finite quantum systems. (Doctoral Dissertation). University of Bradford. Retrieved from http://hdl.handle.net/10454/14641
Chicago Manual of Style (16th Edition):
Oladejo, Semiu Oladipupo. “Partial ordering of weak mutually unbiased bases in finite quantum systems.” 2015. Doctoral Dissertation, University of Bradford. Accessed December 14, 2019.
http://hdl.handle.net/10454/14641.
MLA Handbook (7th Edition):
Oladejo, Semiu Oladipupo. “Partial ordering of weak mutually unbiased bases in finite quantum systems.” 2015. Web. 14 Dec 2019.
Vancouver:
Oladejo SO. Partial ordering of weak mutually unbiased bases in finite quantum systems. [Internet] [Doctoral dissertation]. University of Bradford; 2015. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10454/14641.
Council of Science Editors:
Oladejo SO. Partial ordering of weak mutually unbiased bases in finite quantum systems. [Doctoral Dissertation]. University of Bradford; 2015. Available from: http://hdl.handle.net/10454/14641
University of Bradford
2.
Olupitan, Tominiyi E.
An analytic representation of weak mutually unbiased bases.
Degree: PhD, 2016, University of Bradford
URL: http://hdl.handle.net/10454/15904
► Quantum systems in the d-dimensional Hilbert space are considered. The mutually unbiased bases is a deep problem in this area. The problem of finding all…
(more)
▼ Quantum systems in the d-dimensional Hilbert space are considered. The mutually unbiased bases is a deep problem in this area. The problem of finding all mutually unbiased bases for higher (non-prime) dimension is still open. We derive an alternate approach to mutually unbiased bases by studying a weaker concept which we call weak mutually unbiased bases. We then compare three rather different structures. The first is weak mutually unbiased bases, for which the absolute value of the overlap of any two vectors in two different bases is 1/√k (where k∣d) or 0. The second is maximal lines through the origin in the Z(d) × Z(d) phase space. The third is an analytic representation in the complex plane based on Theta functions, and their zeros. The analytic representation of the weak mutually unbiased bases is defined with the zeros examined. It is shown that there is a correspondence (triality) that links strongly these three apparently different structures. We give an explicit breakdown of this triality.
Subjects/Keywords: Finite quantum systems; Weak mutually unbiased bases; Finite geometry; Theta functions
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APA (6th Edition):
Olupitan, T. E. (2016). An analytic representation of weak mutually unbiased bases. (Doctoral Dissertation). University of Bradford. Retrieved from http://hdl.handle.net/10454/15904
Chicago Manual of Style (16th Edition):
Olupitan, Tominiyi E. “An analytic representation of weak mutually unbiased bases.” 2016. Doctoral Dissertation, University of Bradford. Accessed December 14, 2019.
http://hdl.handle.net/10454/15904.
MLA Handbook (7th Edition):
Olupitan, Tominiyi E. “An analytic representation of weak mutually unbiased bases.” 2016. Web. 14 Dec 2019.
Vancouver:
Olupitan TE. An analytic representation of weak mutually unbiased bases. [Internet] [Doctoral dissertation]. University of Bradford; 2016. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10454/15904.
Council of Science Editors:
Olupitan TE. An analytic representation of weak mutually unbiased bases. [Doctoral Dissertation]. University of Bradford; 2016. Available from: http://hdl.handle.net/10454/15904
University of Bradford
3.
Shalaby, Mohamed Mahmoud Youssef.
Weak mutually unbiased bases with applications to quantum cryptography and tomography.
Degree: PhD, 2012, University of Bradford
URL: http://hdl.handle.net/10454/5754
► Mutually unbiased bases is an important topic in the recent quantum system researches. Although there is much work in this area, many problems related to…
(more)
▼ Mutually unbiased bases is an important topic in the recent quantum system researches. Although there is much work in this area, many problems related to mutually unbiased bases are still open. For example, constructing a complete set of mutually unbiased bases in the Hilbert spaces with composite dimensions has not been achieved yet. This thesis defines a weaker concept than mutually unbiased bases in the Hilbert spaces with composite dimensions. We call this concept, weak mutually unbiased bases. There is a duality between such bases and the geometry of the phase space Zd × Zd, where d is the phase space dimension. To show this duality we study the properties of lines through the origin in Zd × Zd, then we explain the correspondence between the properties of these lines and the properties of the weak mutually unbiased bases. We give an explicit construction of a complete set of weak mutually unbiased bases in the Hilbert space Hd, where d is odd and d = p1p2; p1, p2 are prime numbers. We apply the concept of weak mutually unbiased bases in the context of quantum tomography and quantum cryptography.
Subjects/Keywords: 004; Finite quantum systems; Quantum tomography; Quantum cryptography; Weak mutually unbiased bases; Hilbert spaces
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APA (6th Edition):
Shalaby, M. M. Y. (2012). Weak mutually unbiased bases with applications to quantum cryptography and tomography. (Doctoral Dissertation). University of Bradford. Retrieved from http://hdl.handle.net/10454/5754
Chicago Manual of Style (16th Edition):
Shalaby, Mohamed Mahmoud Youssef. “Weak mutually unbiased bases with applications to quantum cryptography and tomography.” 2012. Doctoral Dissertation, University of Bradford. Accessed December 14, 2019.
http://hdl.handle.net/10454/5754.
MLA Handbook (7th Edition):
Shalaby, Mohamed Mahmoud Youssef. “Weak mutually unbiased bases with applications to quantum cryptography and tomography.” 2012. Web. 14 Dec 2019.
Vancouver:
Shalaby MMY. Weak mutually unbiased bases with applications to quantum cryptography and tomography. [Internet] [Doctoral dissertation]. University of Bradford; 2012. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10454/5754.
Council of Science Editors:
Shalaby MMY. Weak mutually unbiased bases with applications to quantum cryptography and tomography. [Doctoral Dissertation]. University of Bradford; 2012. Available from: http://hdl.handle.net/10454/5754
RMIT University
4.
Hall, J.
Mutually unbiased bases and related structures.
Degree: 2011, RMIT University
URL: http://researchbank.rmit.edu.au/view/rmit:13703
► A set of bases of a d dimensional complex vector space, each pair of which is unbiased, is a set of mutually unbiased bases (MUBs).…
(more)
▼ A set of bases of a d dimensional complex vector space, each pair of which is unbiased, is a set of mutually unbiased bases (MUBs). MUBs have applications in quantum physics and quantum information theory. Although the motivation to study MUBs comes from physical properties, MUBs are a mathematical structure. This is a mathematical investigation. There are many open problems in the theory of MUBS, some with conjectured solutions. For example: What is the maximum number of MUBs in a d dimensional vector space? Do complete sets of MUBs exist in all dimensions? One such conjectured solution states that a complete set of MUBs exists in a d dimensional complex vector space if and only if a complete set of mutually orthogonal Latin squares (MOLS) of order d exists (Saniga et. al., Journal of Optics B, 6: L19-20, 2004). The aim of this research was to find evidence for or against this conjecture. Inspired by constructions of MUBs that use sets of MOLS, complete sets of MOLS were constructed from two complete sets of MUBs. It is interesting to note that the MOLS structure emerges not from the vectors, but from the inner products of the vectors. Analogous properties between Hjelmslev planes and MUBs, and gaps in this knowledge motivated investigation of Hjelmslev planes. The substructures of a Hjelmslev plane over a Galois ring, and a combinatorial algorithm for generating Hjelmslev planes were developed. It was shown that the analogous properties of Hjelmslev planes and MUBs occur only for odd prime powers, making a strong connection between MUBs and Hjelmslev planes unlikely. A construction of MUBs that uses planar functions was generalised by using an automorphism on the additive group of a Galois field. It is still unclear whether this generalisation is equivalent to the original construction. Relation algebras were constructed from the structure of MUBs which do not share any similarities with relation algebras constructed from MOLS. It is possible that further investigation may yield relation algebras that are similar. It was shown that a set of Wooters and Fields type MUBs, when represented as elements of a group ring, forms a commutative monoid, whereas a set of Alltop type MUBs when similarly represented does not form a closed algebraic structure. It is known that WF and Alltop MUBs are equivalent, thus the lack of a closed structure in the Alltop MUBs suggests that the monoid is not a property of MUBs in general. Complete sets of MOLS and complete sets of MUBs are `similar in spirit', but perhaps this is not an inherent feature of MUBs and MOLS. Since all the known constructions of MUBs rely on algebraic structures which exist only in prime power dimensions, the connection may not be with MOLS, but with algebraic structures which generate both MOLS and MUBs.
Subjects/Keywords: Fields of Research; mutually unbiased bases; MUBs; mutually orthogonal Latin squares; MOLS; Hjelmslev planes
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APA ·
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Export
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APA (6th Edition):
Hall, J. (2011). Mutually unbiased bases and related structures. (Thesis). RMIT University. Retrieved from http://researchbank.rmit.edu.au/view/rmit:13703
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):
Hall, J. “Mutually unbiased bases and related structures.” 2011. Thesis, RMIT University. Accessed December 14, 2019.
http://researchbank.rmit.edu.au/view/rmit:13703.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hall, J. “Mutually unbiased bases and related structures.” 2011. Web. 14 Dec 2019.
Vancouver:
Hall J. Mutually unbiased bases and related structures. [Internet] [Thesis]. RMIT University; 2011. [cited 2019 Dec 14].
Available from: http://researchbank.rmit.edu.au/view/rmit:13703.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hall J. Mutually unbiased bases and related structures. [Thesis]. RMIT University; 2011. Available from: http://researchbank.rmit.edu.au/view/rmit:13703
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
5.
Taghikhani, Rahim.
On mutually unbiased bases.
Degree: Mathematics, 2013, University of Manitoba
URL: http://hdl.handle.net/1993/22109
► Two orthonormal bases in the complex space of dimension d, are said to be mutually unbiased if the square of the magnitude of the inner…
(more)
▼ Two orthonormal
bases in the complex space of dimension d, are said to be
mutually unbiased if the square of the magnitude of the inner product of any vector from one basis with any vector in other basis is equal to the reciprocal of the dimension
d.
Mutually unbiased bases are used for optimal state determination of mixed quantum states.
It is known that in any dimension d, the number of
mutually unbiased bases is at most d+1. Ivanovic found a complete set of
mutually unbiased bases for prime dimensions. His construction was generalized by
Wootters and Fields for prime power dimensions. There is a strong connection between maximally commuting
bases of orthogonal unitary
matrices and
mutually unbiased bases. Based on this connection, there exits a constructive proof of the existence of a complete set of
mutually unbiased bases for prime power dimensions. This thesis is an exploration on construction of
mutually unbiased bases.
Advisors/Committee Members: Craigen, Robert (Mathematics) (supervisor), Chipalkatti, Jaydeep (Mathematics) Li, Ben Pak Ching (Computer Science) (examiningcommittee).
Subjects/Keywords: Quantum physics; mutually unbiased bases; t-designs
…bases in Cd . They are said to be mutually unbiased bases (MUB) if and only
if
1… …mutually unbiased bases if each pair of the bases are mutually
unbiased bases.
Example 1.4. For d… …x28;1, −i) .
2
2
The MUB problem
Mutually unbiased bases have a special role in… …more
details.
Mutually unbiased bases were introduced in the literature of quantum mechanics… …construction of d + 1
5
mutually unbiased bases for odd prime d-dimensional spaces. It was also…
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APA (6th Edition):
Taghikhani, R. (2013). On mutually unbiased bases. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/22109
Chicago Manual of Style (16th Edition):
Taghikhani, Rahim. “On mutually unbiased bases.” 2013. Masters Thesis, University of Manitoba. Accessed December 14, 2019.
http://hdl.handle.net/1993/22109.
MLA Handbook (7th Edition):
Taghikhani, Rahim. “On mutually unbiased bases.” 2013. Web. 14 Dec 2019.
Vancouver:
Taghikhani R. On mutually unbiased bases. [Internet] [Masters thesis]. University of Manitoba; 2013. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/1993/22109.
Council of Science Editors:
Taghikhani R. On mutually unbiased bases. [Masters Thesis]. University of Manitoba; 2013. Available from: http://hdl.handle.net/1993/22109
University of Waterloo
6.
Jena, Andrew.
Partitioning Pauli Operators: in Theory and in Practice.
Degree: 2019, University of Waterloo
URL: http://hdl.handle.net/10012/15017
► Measuring the expectation value of Pauli operators on prepared quantum states is a fundamental task in the variational quantum eigensolver. Simultaneously measuring sets of operators…
(more)
▼ Measuring the expectation value of Pauli operators on prepared quantum states is a
fundamental task in the variational quantum eigensolver. Simultaneously measuring sets
of operators allows for fewer measurements and an overall speedup of the measurement
process. In this thesis, we look both at the task of partitioning all Pauli operators of a
xed length and of partitioning a random subset of these Pauli operators. We rst show
how Singer cycles can be used to optimally partition the set of all Pauli operators, giving
some insight to the structure underlying many constructions of mutually unbiased bases.
Thereafter, we show how graph coloring algorithms promise to provide speedups linear
with respect to the lengths of the operators over currently-implemented techniques in the
measurement step of the variational quantum eigensolver.
Subjects/Keywords: Clifford group; Pauli operators; partitioning; graph coloring; Singer cycles; VQE; variational quantum eigensolver; MUBs; mutually unbiased bases; symplectic representation; NP-hard
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APA ·
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APA (6th Edition):
Jena, A. (2019). Partitioning Pauli Operators: in Theory and in Practice. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/15017
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):
Jena, Andrew. “Partitioning Pauli Operators: in Theory and in Practice.” 2019. Thesis, University of Waterloo. Accessed December 14, 2019.
http://hdl.handle.net/10012/15017.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jena, Andrew. “Partitioning Pauli Operators: in Theory and in Practice.” 2019. Web. 14 Dec 2019.
Vancouver:
Jena A. Partitioning Pauli Operators: in Theory and in Practice. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10012/15017.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jena A. Partitioning Pauli Operators: in Theory and in Practice. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/15017
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Vienna
7.
Kilian, Eva.
Bound entanglement detection via mutually unbiased bases.
Degree: 2018, University of Vienna
URL: http://othes.univie.ac.at/53775/
► Kürzlich wurde gebundene Zweiteilchenverschränkung erstmals nachgewiesen. Gebundene Zweiteilchenverschränkung ist eine sonderbare Art der Verschränkung, da sie maximal verschränkter Zustände bedarf um erzeugt zu werden, jedoch…
(more)
▼ Kürzlich wurde gebundene Zweiteilchenverschränkung erstmals nachgewiesen. Gebundene Zweiteilchenverschränkung ist eine sonderbare Art der Verschränkung, da sie maximal verschränkter Zustände bedarf um erzeugt zu werden, jedoch anschließend keine maximal verschränkten Zustände mehr distilliert werden können. Diese Arbeit betrachtet gebundene Verschränkung einer Zustandsfamilie im magischen Simplex. Der Nachweis von Verschränkung fällt in die Gruppe der NP-harten mathematischen Probleme. Gebundene im Gegensatz zu freier Verschränkung zu detektieren ist aufgrund des Versagens des PPT (positive partielle Transposition) Kriteriums zusätzlich umso komplexer. In dieser Arbeit haben wir sogenannte MUB-Verschränkungszeugen betrachtet. Diese sind Observablen, welche mithilfe von Sets gegenseitig unvoreingenommener Basen (engl. mutually unbiased bases, kurz MUBs genannt) konstruiert werden um gebundene Verschränkung im magischen Simplex und in unterschiedlichen Dimensionen zu detektieren. Wir zeigen, dass die Reihenfolge der MUB Vektoren welche den Verschränkungszeugen formen entscheidend ist um gebundene Verschränkung zu detektieren, was für das Design eines neuen Experiments von besonderer Wichtigkeit ist.
Recently bipartite bound entanglement has been experimentally detected for the first time. Bipartite bound entanglement is a curious type of entanglement since it needs maximally entangled states to be generated, but no maximally entangled states can, hereafter, be distilled. This thesis studies bound entanglement of a family of states that forms the magic simplex. Detection of entanglement is known to belong to the NP-hard mathematical problems. Detecting bound versus free entanglement adds complexity since the PPT criterion (positivity under partial transposition) fails. In this thesis, we have considered so-called MUB-Witnesses. These are observables that are formed by sets of mutually unbiased bases (MUBs) to detect bound entanglement within the magic simplex in different dimensions. We have found that the ordering of MUB vectors forming the witness is crucial to detect bound entanglement which is relevant when designing a dedicated experiment.
Subjects/Keywords: 33.23 Quantenphysik; 33.10 Theoretische Physik: Allgemeines; Verschränkung / Bell-Zustände / Simplex / Weyl-Operatoren / MUBs; Entanglement / Bell States / Simplex / Weyl Operators / Mutually Unbiased Bases
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APA (6th Edition):
Kilian, E. (2018). Bound entanglement detection via mutually unbiased bases. (Thesis). University of Vienna. Retrieved from http://othes.univie.ac.at/53775/
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):
Kilian, Eva. “Bound entanglement detection via mutually unbiased bases.” 2018. Thesis, University of Vienna. Accessed December 14, 2019.
http://othes.univie.ac.at/53775/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kilian, Eva. “Bound entanglement detection via mutually unbiased bases.” 2018. Web. 14 Dec 2019.
Vancouver:
Kilian E. Bound entanglement detection via mutually unbiased bases. [Internet] [Thesis]. University of Vienna; 2018. [cited 2019 Dec 14].
Available from: http://othes.univie.ac.at/53775/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kilian E. Bound entanglement detection via mutually unbiased bases. [Thesis]. University of Vienna; 2018. Available from: http://othes.univie.ac.at/53775/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Lethbridge
8.
University of Lethbridge. Faculty of Arts and Science.
Biangular vectors
.
Degree: 2013, University of Lethbridge
URL: http://hdl.handle.net/10133/3560
► This thesis introduces unit weighing matrices, a generalization of Hadamard matrices. When dealing with unit weighing matrices, a lot of the structure that is held…
(more)
▼ This thesis introduces unit weighing matrices, a generalization of Hadamard matrices.
When dealing with unit weighing matrices, a lot of the structure that is held by Hadamard
matrices is lost, but this loss of rigidity allows these matrices to be used in the construction
of certain combinatorial objects. We are able to fully classify these matrices for many small
values by defining equivalence classes analogous to those found with Hadamard matrices.
We then proceed to introduce an extension to mutually unbiased bases, called mutually unbiased
weighing matrices, by allowing for different subsets of vectors to be orthogonal. The
bounds on the size of these sets of matrices, both lower and upper, are examined. In many
situations, we are able to show that these bounds are sharp. Finally, we show how these sets
of matrices can be used to generate combinatorial objects such as strongly regular graphs
and association schemes.
Subjects/Keywords: Unit weighing matrices;
Hadamard matrices;
Unbiased;
Vectors;
Dissertations, Academic;
Mutually unbiased weighing matrices
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APA (6th Edition):
Science, U. o. L. F. o. A. a. (2013). Biangular vectors
. (Thesis). University of Lethbridge. Retrieved from http://hdl.handle.net/10133/3560
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):
Science, University of Lethbridge. Faculty of Arts and. “Biangular vectors
.” 2013. Thesis, University of Lethbridge. Accessed December 14, 2019.
http://hdl.handle.net/10133/3560.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Science, University of Lethbridge. Faculty of Arts and. “Biangular vectors
.” 2013. Web. 14 Dec 2019.
Vancouver:
Science UoLFoAa. Biangular vectors
. [Internet] [Thesis]. University of Lethbridge; 2013. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10133/3560.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Science UoLFoAa. Biangular vectors
. [Thesis]. University of Lethbridge; 2013. Available from: http://hdl.handle.net/10133/3560
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Albouy, Olivier.
Discrete algebra and geometry applied to the Pauli group and mutually unbiased bases in quantum information theory : Algèbre et géométrie discrètes appliquées au groupe de Pauli et aux bases décorrélées en théorie de l’information quantique.
Degree: Docteur es, Physique, 2009, Université Claude Bernard – Lyon I
URL: http://www.theses.fr/2009LYO10077
► Pour d non puissance d’un nombre premier, le nombre maximal de bases deux à deux décorrélées d’un espace de Hilbert de dimension d n’est pas…
(more)
▼ Pour d non puissance d’un nombre premier, le nombre maximal de bases deux à deux décorrélées d’un espace de Hilbert de dimension d n’est pas encore connu. Dans ce mémoire, nous commençons par donner une construction de bases décorrélées en lien avec une famille de représentations irréductibles de l'algèbre de Lie su(2) et faisant appel aux sommes de Gauss.Puis nous étudions de façon systématique la possibilité de construire de telle bases au moyen des opérateurs de Pauli. 1) L’étude de la droite projective sur Zdm montre que, pour obtenir des ensembles maximaux de bases décorrélées à l’aide d'opérateurs de Pauli, il est nécessaire de considérer des produits tensoriels de ces opérateurs. 2) Les sous-modules lagrangiens de Zd2n, dont nous donnons une classification complète, rendent compte des ensembles maximalement commutant d'opérateurs de Pauli. Cette classification permet de savoir lesquels de ces ensembles sont susceptibles de donner des bases décorrélées : ils correspondent aux demi-modules lagrangiens, qui s'interprètent encore comme les points isotropes de la droite projective (P(Mat(n, Zd)²),ω). Nous explicitons alors un isomorphisme entre les bases décorrélées ainsi obtenues et les demi-modules lagrangiens distants, ce qui précise aussi la correspondance entre sommes de Gauss et bases décorrélées. 3) Des corollaires sur le groupe de Clifford et l’espace des phases discret sont alors développés.Enfin, nous présentons quelques outils inspirés de l’étude précédente. Nous traitons ainsi du rapport anharmonique sur la sphère de Bloch, de géométrie projective en dimension supérieure, des opérateurs de Pauli continus et nous comparons l'entropie de von Neumann à une mesure de l'intrication par calcul d'un déterminant.
For d not a power of a prime, the maximal number of mutually unbiased bases (MUBs) in a d-dimensional Hilbert space is still unknown. In this thesis, we begin by an original building of MUBs by means of Gauss sums, in relation with a family of irreducible representations of the Lie algebra su(2).Then, we sytematically study the possibility of building such bases by means of Pauli operators. 1) The study of the projective line on Zdm shows that, in order to obtain maximal sets of MUBs, tensorial products of these operators are in order. 2) Lagrangian submodules of Zd2n, of which we give a complete classification, account for maximally commuting sets of Pauli operators. This classification enables to know which of these sets are likely to yield unbiased bases. They correspond to Lagrangian half-modules that can be interpreted as the isotropic points of the projective line (P(Mat(n, Zd)²),ω). Hence, we establish an isomorphism between the unbiased bases thus obtained and distant Lagrangian half-modules, which precises by the way the correspondance between Gauss sums and MUBs. 3) Corollaries on the Clifford group and the finite phase space are then developed.Finally, we present some tools inspired by the previous study. We deal with the cross-ratio on the Bloch sphere and projective geometry in higher…
Advisors/Committee Members: Kibler, Maurice (thesis director).
Subjects/Keywords: Information quantique; Groupe de Pauli; Bases décorrélées; Géométrie projective; Géométrie symplectique; Groupe de Clifford; Mesure de l’intrication; Espace des phases discret; Quantum information; Pauli group; Mutually unbiased bases; Projective geometry; Symplectic geometry; Clifford group; Entanglement measure; Discrete phase space
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APA (6th Edition):
Albouy, O. (2009). Discrete algebra and geometry applied to the Pauli group and mutually unbiased bases in quantum information theory : Algèbre et géométrie discrètes appliquées au groupe de Pauli et aux bases décorrélées en théorie de l’information quantique. (Doctoral Dissertation). Université Claude Bernard – Lyon I. Retrieved from http://www.theses.fr/2009LYO10077
Chicago Manual of Style (16th Edition):
Albouy, Olivier. “Discrete algebra and geometry applied to the Pauli group and mutually unbiased bases in quantum information theory : Algèbre et géométrie discrètes appliquées au groupe de Pauli et aux bases décorrélées en théorie de l’information quantique.” 2009. Doctoral Dissertation, Université Claude Bernard – Lyon I. Accessed December 14, 2019.
http://www.theses.fr/2009LYO10077.
MLA Handbook (7th Edition):
Albouy, Olivier. “Discrete algebra and geometry applied to the Pauli group and mutually unbiased bases in quantum information theory : Algèbre et géométrie discrètes appliquées au groupe de Pauli et aux bases décorrélées en théorie de l’information quantique.” 2009. Web. 14 Dec 2019.
Vancouver:
Albouy O. Discrete algebra and geometry applied to the Pauli group and mutually unbiased bases in quantum information theory : Algèbre et géométrie discrètes appliquées au groupe de Pauli et aux bases décorrélées en théorie de l’information quantique. [Internet] [Doctoral dissertation]. Université Claude Bernard – Lyon I; 2009. [cited 2019 Dec 14].
Available from: http://www.theses.fr/2009LYO10077.
Council of Science Editors:
Albouy O. Discrete algebra and geometry applied to the Pauli group and mutually unbiased bases in quantum information theory : Algèbre et géométrie discrètes appliquées au groupe de Pauli et aux bases décorrélées en théorie de l’information quantique. [Doctoral Dissertation]. Université Claude Bernard – Lyon I; 2009. Available from: http://www.theses.fr/2009LYO10077
10.
Kourentas, Alexandros.
Σημασία της χορήγησης προϊόντων με αυξημένες δυνατότητες (enabling products) στις ενδοαυλικές συγκεντρώσεις της αλβενδαζόλης και ανάπτυξη in vitro μεθοδολογίας για την εκτίμηση της συμπεριφοράς προϊόντων λιπόφιλων ασθενών βάσεων στον ανώτερο γαστρεντερικό αυλό κατά τη διαπεπτική περίοδο.
Degree: 2017, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)
URL: http://hdl.handle.net/10442/hedi/40960
► Purpose: To evaluate the impact of dosage form relevant levels of a polymeric precipitation inhibitor and of lipid excipients on supersaturation of upper gastrointestinal contents…
(more)
▼ Purpose: To evaluate the impact of dosage form relevant levels of a polymeric precipitation inhibitor and of lipid excipients on supersaturation of upper gastrointestinal contents with albendazole, a lipophilic weak base. To implement an in vitro methodology (Biorelevant GastroIntestinal Transfer system, BioGIT) for studying gastrointestinal transfer of highly lipophilic weak bases in the fasted upper small intestine, based on luminal dipyridamole and ketoconazole data. To evaluate the usefulness of BioGIT in predicting luminal performance of lipophilic weak bases, after administration of conventional dosage forms of albendazole and posaconazole (Noxafil®) and enabling products of albendazole and itraconazole (Sporanox®) in the fasted upper small intestine. Methods: Total albendazole amount per volume, drug concentration and equilibrium solubility in the contents of stomach and upper small intestine were evaluated after administration of 1) a suspension in water (ABZ-Control), 2) a suspension in water in which hydroxyprolylmethylcellulose E5 (HPMC E5) had been pre-dissolved (ABZ-HPMC), and 3) and 4) two contrasting designs of lipid based suspensions dispersed in water (ABZ-IIIA and ABZ-IV), on a cross-over basis to fasted healthy adults. Using BioGIT, a three compartment setup, reproducibility of the transfer process and reproduction of luminal data in humans were evaluated under conditions where solutions were present in gastric and/or duodenal compartment and by using ranitidine, dipyridamole and ketoconazole and previously published luminal data. The usefulness of BioGIT was further investigated by using suspensions of albendazole similar with those tested in the clinical study, Noxafil® suspension, Sporanox® capsules and Sporanox® solution in gastric compartment. In all cases, total drug amount per volume, drug concentration and equilibrium solubility were measured in samples collected at specific time intervals and compared with luminal data.Results: Based on total albendazole amount per volume, gastric secretions did not significantly alter volumes of bulk gastric contents during the first 40 min post administration of a glass of non-caloric water-based fluid. Αlbendazole gastric concentrations were higher than in the administered suspensions, but similar for all four formulations. Gastric emptying of albendazole particles after administration of ABZ-Control or ABZ-HPMC was slower than after administration of ABZ-IIIA or ABZ-IV. Limited, but statistically significant supersaturation of contents of upper small intestine was observed after ABZ-HPMC, ABZ-IIIA, and ABZ-IV; supersaturation was more consistent after ABZ-HPMC administration. Using BioGIT, the transfer process was performed reproducibly in all cases (RSD < 12.9%): in vitro data with dipyridamole and ketoconazole were in line with previously published luminal data in humans. Also, with BioGIT the average albendazole gastrointestinal transfer process and concentrations in upper small intestine were adequately simulated. For posaconazole and itraconazole,…
Subjects/Keywords: Καθίζηση; Υπερκορεσμός; Ασθενείς βάσεις; Γαστρεντερικός αυλός; Πειραματική διάταξη; Precipitation; Supersaturation; Weak bases; Gastrointestinal lumen; BioGIT
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APA (6th Edition):
Kourentas, A. (2017). Σημασία της χορήγησης προϊόντων με αυξημένες δυνατότητες (enabling products) στις ενδοαυλικές συγκεντρώσεις της αλβενδαζόλης και ανάπτυξη in vitro μεθοδολογίας για την εκτίμηση της συμπεριφοράς προϊόντων λιπόφιλων ασθενών βάσεων στον ανώτερο γαστρεντερικό αυλό κατά τη διαπεπτική περίοδο. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/40960
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):
Kourentas, Alexandros. “Σημασία της χορήγησης προϊόντων με αυξημένες δυνατότητες (enabling products) στις ενδοαυλικές συγκεντρώσεις της αλβενδαζόλης και ανάπτυξη in vitro μεθοδολογίας για την εκτίμηση της συμπεριφοράς προϊόντων λιπόφιλων ασθενών βάσεων στον ανώτερο γαστρεντερικό αυλό κατά τη διαπεπτική περίοδο.” 2017. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed December 14, 2019.
http://hdl.handle.net/10442/hedi/40960.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kourentas, Alexandros. “Σημασία της χορήγησης προϊόντων με αυξημένες δυνατότητες (enabling products) στις ενδοαυλικές συγκεντρώσεις της αλβενδαζόλης και ανάπτυξη in vitro μεθοδολογίας για την εκτίμηση της συμπεριφοράς προϊόντων λιπόφιλων ασθενών βάσεων στον ανώτερο γαστρεντερικό αυλό κατά τη διαπεπτική περίοδο.” 2017. Web. 14 Dec 2019.
Vancouver:
Kourentas A. Σημασία της χορήγησης προϊόντων με αυξημένες δυνατότητες (enabling products) στις ενδοαυλικές συγκεντρώσεις της αλβενδαζόλης και ανάπτυξη in vitro μεθοδολογίας για την εκτίμηση της συμπεριφοράς προϊόντων λιπόφιλων ασθενών βάσεων στον ανώτερο γαστρεντερικό αυλό κατά τη διαπεπτική περίοδο. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2017. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10442/hedi/40960.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kourentas A. Σημασία της χορήγησης προϊόντων με αυξημένες δυνατότητες (enabling products) στις ενδοαυλικές συγκεντρώσεις της αλβενδαζόλης και ανάπτυξη in vitro μεθοδολογίας για την εκτίμηση της συμπεριφοράς προϊόντων λιπόφιλων ασθενών βάσεων στον ανώτερο γαστρεντερικό αυλό κατά τη διαπεπτική περίοδο. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2017. Available from: http://hdl.handle.net/10442/hedi/40960
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
McMaster University
11.
Birchall, Thomas.
N.m.r. Studies of Protonation and Hydrogen Bonding in Strong Acid Solvents.
Degree: PhD, 1963, McMaster University
URL: http://hdl.handle.net/11375/15494
► The protonation for several classes of weak bases has been studied by n.m.r. techniques and the structure of the conjugate acids determined. The rates…
(more)
▼ The protonation for several classes of weak bases has been
studied by n.m.r. techniques and the structure of the conjugate acids
determined. The rates of proton transfer and the activation energies
for some of the processes have been calculated and in the cases of the
methylbenzene-HSO₃F systems the mechanism of the proton transfer process
has been elucidated.
The acidity function (H₀) for the HSO₃F/SbF₅ system has been
redetermined and extended to higher concentrations of SbF₅• The
application of some n.m.r. methods to the measurement of H₀ is discussed.
The behaviour of the n.m.r. spectra of sulphuric and fluorosulphuric
acids upon the addition of electrolytes has been studied
and the results interpreted.
Thesis
Doctor of Philosophy (PhD)
Advisors/Committee Members: Gillespie, R.J., Chemistry.
Subjects/Keywords: protonation; weak bases; n.m.r. techniques; behaviour; acids; electrolytes
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APA (6th Edition):
Birchall, T. (1963). N.m.r. Studies of Protonation and Hydrogen Bonding in Strong Acid Solvents. (Doctoral Dissertation). McMaster University. Retrieved from http://hdl.handle.net/11375/15494
Chicago Manual of Style (16th Edition):
Birchall, Thomas. “N.m.r. Studies of Protonation and Hydrogen Bonding in Strong Acid Solvents.” 1963. Doctoral Dissertation, McMaster University. Accessed December 14, 2019.
http://hdl.handle.net/11375/15494.
MLA Handbook (7th Edition):
Birchall, Thomas. “N.m.r. Studies of Protonation and Hydrogen Bonding in Strong Acid Solvents.” 1963. Web. 14 Dec 2019.
Vancouver:
Birchall T. N.m.r. Studies of Protonation and Hydrogen Bonding in Strong Acid Solvents. [Internet] [Doctoral dissertation]. McMaster University; 1963. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/11375/15494.
Council of Science Editors:
Birchall T. N.m.r. Studies of Protonation and Hydrogen Bonding in Strong Acid Solvents. [Doctoral Dissertation]. McMaster University; 1963. Available from: http://hdl.handle.net/11375/15494
University of Minnesota
12.
Bouchard, Don.
Mutually Humble Collaboration in College Literacy Courses: Same Papers, Dialogical Responses.
Degree: PhD, Education, Curriculum and Instruction, 2017, University of Minnesota
URL: http://hdl.handle.net/11299/190469
► Abstract Each fall, first-year college students enter required composition courses with the expectation that they will learn the necessary skills to write competently for their…
(more)
▼ Abstract Each fall, first-year college students enter required composition courses with the expectation that they will learn the necessary skills to write competently for their collegiate careers. Quickly, students who survive and thrive discover that complex factors such as experience, academic cultural etiquette, self-regulation, and relationships with professors and classmates combine to set them on paths of success or failure. I examined the literacy induction experiences of college composition students at a private Christian college in the Midwestern United States through a constant comparative analysis framework utilized in a grounded theory research (Strauss & Corbin, 1998, 2008; and Charmaz, 2007.) Through surveys, interviews, and observations in three composition classrooms, I used social cognitive and sociocultural frameworks to focus on participants’ and their professors’ actions and perceptions. Using data from the interviews and observations in a positive deviance selection process (Pascale, Sternin & Sternin, 2010), I narrowed my focus to four participants whose narratives revealed grit (Duckworth, 2016), growth mindset (Dweck, 2015), and evidence of mutually humble collaboration (MHC), the theory that emerged from this study, which serves as the super framework over the themes I examine. My findings indicate that professors and students facing literacy challenges who engage in mutually humble collaboration establish dialogical relationships (Freire, 2009) that foster passion and perseverance leading to success. In this study I address the pragmatic question of how sociocultural concepts such as scaffolding (Vygotsky, 1978), and the dialogical relationship ending the oppressor - oppressed cycle described by Freire (2009) may be initiated. Keywords: mutually humble collaboration, grit, literacy
Subjects/Keywords: collaboration; grit; growth; humble; literacy; mutually
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APA ·
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APA (6th Edition):
Bouchard, D. (2017). Mutually Humble Collaboration in College Literacy Courses: Same Papers, Dialogical Responses. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/190469
Chicago Manual of Style (16th Edition):
Bouchard, Don. “Mutually Humble Collaboration in College Literacy Courses: Same Papers, Dialogical Responses.” 2017. Doctoral Dissertation, University of Minnesota. Accessed December 14, 2019.
http://hdl.handle.net/11299/190469.
MLA Handbook (7th Edition):
Bouchard, Don. “Mutually Humble Collaboration in College Literacy Courses: Same Papers, Dialogical Responses.” 2017. Web. 14 Dec 2019.
Vancouver:
Bouchard D. Mutually Humble Collaboration in College Literacy Courses: Same Papers, Dialogical Responses. [Internet] [Doctoral dissertation]. University of Minnesota; 2017. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/11299/190469.
Council of Science Editors:
Bouchard D. Mutually Humble Collaboration in College Literacy Courses: Same Papers, Dialogical Responses. [Doctoral Dissertation]. University of Minnesota; 2017. Available from: http://hdl.handle.net/11299/190469
13.
Setayeshgar, Leila.
Large Deviations for a Feed-forward Network & Importance
Sampling for a Single Server Priority Queue.
Degree: PhD, Applied Mathematics, 2012, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:297528/
► This thesis considers a feed-forward network with a single server station serving jobs with multiple levels of priority. The service discipline is preemptive in that…
(more)
▼ This thesis considers a feed-forward network with a
single server station serving jobs with multiple levels of
priority. The service discipline is preemptive in that the server
always serves a job with the current highest priority level. For
this system with discontinuous dynamics, we show that the family of
scaled state processes satisfy the sample path large deviations
principle using a
weak convergence argument. In the special case
where the jobs have two different levels of priority, we explicitly
identify the exponential decay rate of the probability a rare
event, namely, the “total population overflow” associated to the
feed-forward network. We then use importance sampling – a variance
reduction technique – efficient for rare event probabilities to
simulate the exact probability of interest. The thesis concludes by
numerical simulations which confirm our theory.
Advisors/Committee Members: Wang, Hui (Director), Blanchet, Jose (Reader), Holmer, Justin (Reader), Ramanan, Kavita (Reader).
Subjects/Keywords: Weak Convergence
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Setayeshgar, L. (2012). Large Deviations for a Feed-forward Network & Importance
Sampling for a Single Server Priority Queue. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:297528/
Chicago Manual of Style (16th Edition):
Setayeshgar, Leila. “Large Deviations for a Feed-forward Network & Importance
Sampling for a Single Server Priority Queue.” 2012. Doctoral Dissertation, Brown University. Accessed December 14, 2019.
https://repository.library.brown.edu/studio/item/bdr:297528/.
MLA Handbook (7th Edition):
Setayeshgar, Leila. “Large Deviations for a Feed-forward Network & Importance
Sampling for a Single Server Priority Queue.” 2012. Web. 14 Dec 2019.
Vancouver:
Setayeshgar L. Large Deviations for a Feed-forward Network & Importance
Sampling for a Single Server Priority Queue. [Internet] [Doctoral dissertation]. Brown University; 2012. [cited 2019 Dec 14].
Available from: https://repository.library.brown.edu/studio/item/bdr:297528/.
Council of Science Editors:
Setayeshgar L. Large Deviations for a Feed-forward Network & Importance
Sampling for a Single Server Priority Queue. [Doctoral Dissertation]. Brown University; 2012. Available from: https://repository.library.brown.edu/studio/item/bdr:297528/
14.
Cook, Richard Ian.
Measuring Weak Lensing Sensitivity and Systematics.
Degree: PhD, Physics, 2012, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:297715/
► The Universe is expanding at an ever increasing rate. The mysterious source of this acceleration has been dubbed "dark energy" and constitutes 70% of the…
(more)
▼ The Universe is expanding at an ever increasing rate.
The mysterious source of this acceleration has been dubbed "dark
energy" and constitutes 70% of the energy-density of the Universe.
To understand the nature of this force we must measure the
expansion of the universe and the growth of structure with
significant precision. Clusters of galaxies are the most massive
gravitationally-collapsed structures in the universe and offer an
ideal probe of the growth and evolution of structure. Numerous
methods for detecting and measuring cluster masses exist including
X-ray flux, spectroscopic redshift, and
weak gravitational lensing
measurements.
Weak lensing is the coherent distortion of galaxy
images by intervening mass and is used as an
unbiased indicator of
the mass of galaxy clusters. The accuracy of each of these methods
for measuring clusters masses will depend in part on the accuracy
of
weak lensing measurements, which will be used both as a mass
calibration technique and a detection technique. It is therefore
critical that we understand the factors affecting
weak lensing
sensitivity and the correspondence to other mass measurement
techniques.
Orthogonal Transfer (OT) Imagers offer significant advantages
for
weak lensing measurements. By correcting atmospheric
distortions using real-time guide-star position information and
shifting charge across the CCD they can increase the number of
detected galaxies and increase the signal-to-noise of
weak lensing
detections. One outstanding question has been whether the
charge-shifting correction induces unwanted systematic effects in
weak lensing measurements. I study the systematic effects from OT
guiding using stellar observations and show that the magnitude of
the improvement to image quality far exceed the magnitude of any
possible systematic effects.
I demonstrate the utility of OT imagers for
weak lensing by
detecting the cluster Abell 781A using the Orthogonal Parallel
Transfer Imaging Camera. I use this data to measure the sensitivity
of
weak lensing detections and the significant discrepancy between
mass estimates of Abell 781D.
Finally, I show that OT imagers can also be used to probe
atmospheric conditions during observations, informing our choice of
observing strategy and further illustrating the facility of OT
guiding.
Advisors/Committee Members: Dell'Antonio, Ian (Director), Gaitskell, Richard (Reader), Koushiappas, Savvas (Reader), Dell'Antonio, Ian (Reader).
Subjects/Keywords: Weak Lensing
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APA ·
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Export
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APA (6th Edition):
Cook, R. I. (2012). Measuring Weak Lensing Sensitivity and Systematics. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:297715/
Chicago Manual of Style (16th Edition):
Cook, Richard Ian. “Measuring Weak Lensing Sensitivity and Systematics.” 2012. Doctoral Dissertation, Brown University. Accessed December 14, 2019.
https://repository.library.brown.edu/studio/item/bdr:297715/.
MLA Handbook (7th Edition):
Cook, Richard Ian. “Measuring Weak Lensing Sensitivity and Systematics.” 2012. Web. 14 Dec 2019.
Vancouver:
Cook RI. Measuring Weak Lensing Sensitivity and Systematics. [Internet] [Doctoral dissertation]. Brown University; 2012. [cited 2019 Dec 14].
Available from: https://repository.library.brown.edu/studio/item/bdr:297715/.
Council of Science Editors:
Cook RI. Measuring Weak Lensing Sensitivity and Systematics. [Doctoral Dissertation]. Brown University; 2012. Available from: https://repository.library.brown.edu/studio/item/bdr:297715/
15.
Zhan, Zhaoguo.
Essays on Weak Identification.
Degree: PhD, Economics, 2011, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:11247/
► Recent developments in econometrics have revealed weak identification in empirical studies. The linear Instrumental Variable (IV) regression with weak instruments is an example that has…
(more)
▼ Recent developments in econometrics have revealed
weak
identification in empirical studies. The linear Instrumental
Variable (IV) regression with
weak instruments is an example that
has received sizable attention; when instruments are
weak,
conventional asymptotics fail to function, and empirical results
based on conventional asymptotics are unreliable. The problem of
weak identification, however, is not limited to the linear IV
regression or the Generalized Method of Moments (GMM) framework. In
a broad range of economic models, the quality of inference depends
on the treatment of
weak identification. In my dissertation, I
consider three issues related to
weak identification. The first
chapter proposes a method to detect whether
weak identification
exists. The objective of this chapter is to develop an intuitive
tool which can be universally used in IV and GMM applications. The
second chapter investigates the empirical studies of the Capital
Asset Pricing Model (CAPM) and Consumption CAPM, in which various
risk factors are suggested to explain the variation in asset
returns. I find that irrelevant risk factors may still appear
useful in explaining the variation, because of the
weak
identification problem induced by irrelevant factors. The third
chapter targets the ongoing debate on whether technology shocks
increase the hours worked. The debate derives from the highly
persistent time series of hours, which makes the impact of
technology shocks on hours weakly identified. I construct
confidence intervals for this impact by adopting an approach robust
to
weak identification.
Advisors/Committee Members: Kleibergen, Frank (Director), Melly, Blaise (Reader), Dhaene, Geert (Reader).
Subjects/Keywords: Weak Identification
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APA ·
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MLA ·
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Export
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Manager
APA (6th Edition):
Zhan, Z. (2011). Essays on Weak Identification. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11247/
Chicago Manual of Style (16th Edition):
Zhan, Zhaoguo. “Essays on Weak Identification.” 2011. Doctoral Dissertation, Brown University. Accessed December 14, 2019.
https://repository.library.brown.edu/studio/item/bdr:11247/.
MLA Handbook (7th Edition):
Zhan, Zhaoguo. “Essays on Weak Identification.” 2011. Web. 14 Dec 2019.
Vancouver:
Zhan Z. Essays on Weak Identification. [Internet] [Doctoral dissertation]. Brown University; 2011. [cited 2019 Dec 14].
Available from: https://repository.library.brown.edu/studio/item/bdr:11247/.
Council of Science Editors:
Zhan Z. Essays on Weak Identification. [Doctoral Dissertation]. Brown University; 2011. Available from: https://repository.library.brown.edu/studio/item/bdr:11247/
16.
Johnson, Dane Michael.
Moderate Deviations and Subsolution-Based Importance
Sampling for Recursive Stochastic Algorithms.
Degree: PhD, Applied Mathematics, 2015, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:419359/
► We prove a moderate deviations principle for the continuous time linear interpolation of discrete time recursive stochastic processes, and then investigate importance sampling schemes based…
(more)
▼ We prove a moderate deviations principle for the
continuous time linear interpolation of discrete time recursive
stochastic processes, and then investigate importance sampling
schemes based on subsolutions to the Hamilton-Jacobi-Bellman
equation associated with the moderate deviations structure. Both
the proof of the moderate deviations principle itself as well as
the proof of the asymptotic performance of importance sampling
schemes based on moderate deviations rely on proving tightness of
the empirical measures of the conditional means of the controlled
noises as well as the controlled processes themselves. This is more
complex than what is needed in the large deviation setting
primarily because of the moderate deviations scaling which
amplifies the noise and the weaker assumptions imposed on the
moment generating function. The main tools used are the relative
entropy representation of exponential integrals and the
weak
convergence of probability measures. The resulting moderate
deviations structure is essentially a linear approximation of the
large deviations dynamics and a quadratic approximation of the
large deviations costs, both centered around the law of large
numbers limit. Consequently importance sampling schemes based on
moderate deviations subsolutions generally don't perform as well as
their large deviations counterparts, but the subsolutions
themselves are typically easier to find. For this reason we
recommend using importance sampling based on moderate deviations
when finding large deviation subsolutions is prohibitively
difficult, which can occur even in simple situations, or when
considering events that are “rare but not too rare” so that the
moderate deviation approximation centered around the law of large
numbers limit captures the distributional properties which are
important for determining the probability.
Advisors/Committee Members: Dupuis, Paul (Director), Ramanan, Kavita (Reader), Budhiraja, Amarjit (Reader).
Subjects/Keywords: Weak Convergence
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APA (6th Edition):
Johnson, D. M. (2015). Moderate Deviations and Subsolution-Based Importance
Sampling for Recursive Stochastic Algorithms. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:419359/
Chicago Manual of Style (16th Edition):
Johnson, Dane Michael. “Moderate Deviations and Subsolution-Based Importance
Sampling for Recursive Stochastic Algorithms.” 2015. Doctoral Dissertation, Brown University. Accessed December 14, 2019.
https://repository.library.brown.edu/studio/item/bdr:419359/.
MLA Handbook (7th Edition):
Johnson, Dane Michael. “Moderate Deviations and Subsolution-Based Importance
Sampling for Recursive Stochastic Algorithms.” 2015. Web. 14 Dec 2019.
Vancouver:
Johnson DM. Moderate Deviations and Subsolution-Based Importance
Sampling for Recursive Stochastic Algorithms. [Internet] [Doctoral dissertation]. Brown University; 2015. [cited 2019 Dec 14].
Available from: https://repository.library.brown.edu/studio/item/bdr:419359/.
Council of Science Editors:
Johnson DM. Moderate Deviations and Subsolution-Based Importance
Sampling for Recursive Stochastic Algorithms. [Doctoral Dissertation]. Brown University; 2015. Available from: https://repository.library.brown.edu/studio/item/bdr:419359/
Montana Tech
17.
Schlecht, Ryan Michael.
Application of Randomized Branch Sampling to Conifer Trees: Estimating Crown Biomass.
Degree: MS, 2011, Montana Tech
URL: https://scholarworks.umt.edu/etd/151
► Randomized branch sampling (RBS) is a sampling scheme which can be implemented to estimate many different attributes of an object displaying a branched or forked…
(more)
▼ Randomized branch sampling (RBS) is a sampling scheme which can be implemented to estimate many different attributes of an object displaying a branched or forked form. The aboveground structure of trees (stem and branches) lends itself naturally to this type of sampling design. RBS utilizes the branching form of the crown itself to draw probability samples and generate unbiased estimates. When implemented correctly, RBS can also greatly reduce the costs in time and labor of sampling when the purpose is estimating attributes borne within crown portions of trees. However, RBS was created for and has been implemented primarily in applications on trees with a decurrent crown structure. Considerations when applying RBS to excurrent crown structures, which are a common trait of conifer species, are examined in this thesis. The applications of several RBS schemes are examined within the context of sampling to estimate green crown biomass. The way branches are aggregated into groups for sampling along the main stem is the distinction between the proposed RBS schemes in this thesis. For estimating green crown mass, RBS was found to produce estimates with accuracy between that of simple random and list sampling methods. A sample size of five or six branches was sufficient to obtain standard errors within ten percent of the actual crown weight.
Subjects/Keywords: unbiased estimator; biomass; Randomized branch sampling
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MLA ·
Vancouver ·
CSE |
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Schlecht, R. M. (2011). Application of Randomized Branch Sampling to Conifer Trees: Estimating Crown Biomass. (Masters Thesis). Montana Tech. Retrieved from https://scholarworks.umt.edu/etd/151
Chicago Manual of Style (16th Edition):
Schlecht, Ryan Michael. “Application of Randomized Branch Sampling to Conifer Trees: Estimating Crown Biomass.” 2011. Masters Thesis, Montana Tech. Accessed December 14, 2019.
https://scholarworks.umt.edu/etd/151.
MLA Handbook (7th Edition):
Schlecht, Ryan Michael. “Application of Randomized Branch Sampling to Conifer Trees: Estimating Crown Biomass.” 2011. Web. 14 Dec 2019.
Vancouver:
Schlecht RM. Application of Randomized Branch Sampling to Conifer Trees: Estimating Crown Biomass. [Internet] [Masters thesis]. Montana Tech; 2011. [cited 2019 Dec 14].
Available from: https://scholarworks.umt.edu/etd/151.
Council of Science Editors:
Schlecht RM. Application of Randomized Branch Sampling to Conifer Trees: Estimating Crown Biomass. [Masters Thesis]. Montana Tech; 2011. Available from: https://scholarworks.umt.edu/etd/151
University of South Africa
18.
Soma, Kooshmilah.
Grade R teachers perceptions of an unbiased classromm environment in the Isipingo district (KwaZulu- Natal)
.
Degree: 2011, University of South Africa
URL: http://hdl.handle.net/10500/4822
► Multicultural education is only one of the major changes since the inception of the new democracy in South Africa. However, this inevitable change has resulted…
(more)
▼ Multicultural education is only one of the major changes since the inception of the new democracy in South Africa. However, this inevitable change has resulted in many challenges for educators and educational institutions in the Isipingo District, KwaZulu Natal (KZN).
One of the primary responsibilities of a teacher is to manage diversity. The research addressed here focused on challenges experienced by Grade R teachers to create and maintain an
unbiased classroom environment for Grade R learners in the Isipingo District, (KZN). A literature review regarding
unbiased classroom environments for Grade R learners as well as an empirical investigation using a qualitative approach was conducted. A semi-structured focus group interview and a follow-up focus group interview with Grade R teachers from 3 different public multicultural primary schools were used for data gathering.
The findings indicated that Grade R teachers lack the knowledge, skills and attitudes required to enhance
unbiased classroom environments. The results of the investigation also indicated that teachers require effective training to help them cope with creating and managing
unbiased classroom environments.
Advisors/Committee Members: Marais, P. (Dr.) (advisor).
Subjects/Keywords: Multicultural education;
Racism;
Unbiased classroom environment;
Prejudice;
Grade R;
Stereotypes;
Anti-bias/unbiased
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MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Soma, K. (2011). Grade R teachers perceptions of an unbiased classromm environment in the Isipingo district (KwaZulu- Natal)
. (Doctoral Dissertation). University of South Africa. Retrieved from http://hdl.handle.net/10500/4822
Chicago Manual of Style (16th Edition):
Soma, Kooshmilah. “Grade R teachers perceptions of an unbiased classromm environment in the Isipingo district (KwaZulu- Natal)
.” 2011. Doctoral Dissertation, University of South Africa. Accessed December 14, 2019.
http://hdl.handle.net/10500/4822.
MLA Handbook (7th Edition):
Soma, Kooshmilah. “Grade R teachers perceptions of an unbiased classromm environment in the Isipingo district (KwaZulu- Natal)
.” 2011. Web. 14 Dec 2019.
Vancouver:
Soma K. Grade R teachers perceptions of an unbiased classromm environment in the Isipingo district (KwaZulu- Natal)
. [Internet] [Doctoral dissertation]. University of South Africa; 2011. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10500/4822.
Council of Science Editors:
Soma K. Grade R teachers perceptions of an unbiased classromm environment in the Isipingo district (KwaZulu- Natal)
. [Doctoral Dissertation]. University of South Africa; 2011. Available from: http://hdl.handle.net/10500/4822
Rutgers University
19.
Dronadula, Rohith, 1990-.
Hybrid lunar inflatable structure.
Degree: MS, Mechanical and Aerospace Engineering, 2019, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/60141/
► Before man had even stepped foot on the lunar surface, the idea of establishing a base was discussed extensively, be it in science fiction or…
(more)
▼ Before man had even stepped foot on the lunar surface, the idea of establishing a base was discussed extensively, be it in science fiction or academia. Although, to this day there has not been an actual base on the Moon, many studies have been conducted regarding design possibilities and environmental impacts. There exists a prevalent challenge in regards to the predictability of the effects the lunar environment has on surface structures. This thesis discusses those aspects of lunar habitats and proposes a new design concept.
Advisors/Committee Members: Benaroya, Haym (chair), Baruh, Haim (internal member), Bottega, William J (internal member), School of Graduate Studies.
Subjects/Keywords: Lunar bases
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dronadula, Rohith, 1. (2019). Hybrid lunar inflatable structure. (Masters Thesis). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/60141/
Chicago Manual of Style (16th Edition):
Dronadula, Rohith, 1990-. “Hybrid lunar inflatable structure.” 2019. Masters Thesis, Rutgers University. Accessed December 14, 2019.
https://rucore.libraries.rutgers.edu/rutgers-lib/60141/.
MLA Handbook (7th Edition):
Dronadula, Rohith, 1990-. “Hybrid lunar inflatable structure.” 2019. Web. 14 Dec 2019.
Vancouver:
Dronadula, Rohith 1. Hybrid lunar inflatable structure. [Internet] [Masters thesis]. Rutgers University; 2019. [cited 2019 Dec 14].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/60141/.
Council of Science Editors:
Dronadula, Rohith 1. Hybrid lunar inflatable structure. [Masters Thesis]. Rutgers University; 2019. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/60141/
University of Rochester
20.
Williams, Nathan S. (1983 - ); Jordan, Andrew N.; Starling, David J. (1983 - ); Dixon, P. Benjamin (1981 - ); Howell, John Charles (1971 - ).
Weak measurements in solid state and optical
systems.
Degree: PhD, 2012, University of Rochester
URL: http://hdl.handle.net/1802/18652
► The work contained in this thesis is derived from five projects completed during my studies at the University of Rochester. The first chapter introduces general…
(more)
▼ The work contained in this thesis is derived from
five projects completed during my studies at the University of
Rochester. The first chapter introduces general concepts useful in
understanding the subsequent work. General measurement theory is
discussed along with the idea of weak measurements and weak values.
The second chapter discusses weak values in solid state systems and
the relationship between these values and the Leggett-Garg
Inequality. The calculations proceed with a quantum Bayesian
approach to show the existence of the weak values, which can then
be related to Leggett-Garg Inequalities through their similarities
in measurement contexts. It is shown that violations of a
Leggett-Garg Inequality occur if and only if a strange weak value
can also be observed. The next chapter discusses a method of
measuring a phase shift inspired by weak values with a sagnac
interferometer. It is shown that one can measure an amplification
of this phase shift with a sensitivity comparable to balanced
homodyne detection, but with a much lower intensity incident on the
detector. The fourth chapter presents an analysis of the
entanglement dynamics of two qubits undergoing continuous parity
measurement. Stochastic differential equations model the evolution
and produce entanglement sudden death and genesis. Next, I detail a
non-local protocol to correct for a random disturbance in amplitude
or phase of an entangled pair of qubits. This correction regains
part of the lost entanglement with the potential to improve quantum
communication channels. The final chapter examines an aspect of
quantum thermodynamics relevant at low temperatures. In these cases
the coupling energy between system and environment is comparable to
the system energy and can no longer be ignored as in classical
thermodynamics. This can lead to violations of thermodynamical
laws. An effective framework and redefinition of quantities is
introduced to account for these violations.
Subjects/Keywords: Weak measurement; Weak values; Quantum measurement
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Williams, Nathan S. (1983 - ); Jordan, Andrew N.; Starling, David J. (1983 - ); Dixon, P. Benjamin (1981 - ); Howell, J. C. (. -. ). (2012). Weak measurements in solid state and optical
systems. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/18652
Chicago Manual of Style (16th Edition):
Williams, Nathan S. (1983 - ); Jordan, Andrew N.; Starling, David J. (1983 - ); Dixon, P. Benjamin (1981 - ); Howell, John Charles (1971 - ). “Weak measurements in solid state and optical
systems.” 2012. Doctoral Dissertation, University of Rochester. Accessed December 14, 2019.
http://hdl.handle.net/1802/18652.
MLA Handbook (7th Edition):
Williams, Nathan S. (1983 - ); Jordan, Andrew N.; Starling, David J. (1983 - ); Dixon, P. Benjamin (1981 - ); Howell, John Charles (1971 - ). “Weak measurements in solid state and optical
systems.” 2012. Web. 14 Dec 2019.
Vancouver:
Williams, Nathan S. (1983 - ); Jordan, Andrew N.; Starling, David J. (1983 - ); Dixon, P. Benjamin (1981 - ); Howell JC(-). Weak measurements in solid state and optical
systems. [Internet] [Doctoral dissertation]. University of Rochester; 2012. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/1802/18652.
Council of Science Editors:
Williams, Nathan S. (1983 - ); Jordan, Andrew N.; Starling, David J. (1983 - ); Dixon, P. Benjamin (1981 - ); Howell JC(-). Weak measurements in solid state and optical
systems. [Doctoral Dissertation]. University of Rochester; 2012. Available from: http://hdl.handle.net/1802/18652
University of Rochester
21.
Martínez-Rincón, Julián Rodrigo.
Weak-values metrological techniques for parameter
estimation.
Degree: PhD, 2017, University of Rochester
URL: http://hdl.handle.net/1802/32745
► Precision measurements are bounded by the Standard Quantum Limit, and prepar- ing non-classical states is often used to circumvent such a limit. In all cases,…
(more)
▼ Precision measurements are bounded by the Standard
Quantum Limit, and prepar-
ing non-classical states is often used
to circumvent such a limit. In all cases, it
is common to improve
the precision in a parameter estimation procedure by averaging
measurements of a large ensemble of identically prepared systems.
However,
such a task cannot be performed indefinitely due to
sources of technical
noise setting an experimental bound.
Weak-Value Amplification (WVA) allows
one to overcome some of
these issues by amplifying a signal of interest above the
technical-noise floor. This built-in robustness to external sources
of noise relies on
a weak coupling to a meter and postselection.
In this document we evaluate, the-
oretically and experimentally,
under what circumstances the technique is superior
to
non-postselected standard techniques. We also present a novel
protocol where
a WVA-like response is induced in an optical
homodyne-type detection technique.
We dub this technique
Almost-Balanced Weak Values (ABWV) and present three
experimental
measurements of different physical velocities to evaluate the
practi-
cal advantages over the well-known technique of WVA. In
addition, we point out
the existence of a third
postselected-weak-measurements technique for metrology,
Inverse
Weak Value (IWV), that has been ignored by the scientific
community.
We use this protocol to measure ultra small tilts of a
mirror in a Sagnac interfer-
ometer. We report all three
techniques as complementary to each other, and show
their
robustness for low-frequency signals.
Subjects/Keywords: Optical metrology; Weak measurements; Weak values
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Martínez-Rincón, J. R. (2017). Weak-values metrological techniques for parameter
estimation. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/32745
Chicago Manual of Style (16th Edition):
Martínez-Rincón, Julián Rodrigo. “Weak-values metrological techniques for parameter
estimation.” 2017. Doctoral Dissertation, University of Rochester. Accessed December 14, 2019.
http://hdl.handle.net/1802/32745.
MLA Handbook (7th Edition):
Martínez-Rincón, Julián Rodrigo. “Weak-values metrological techniques for parameter
estimation.” 2017. Web. 14 Dec 2019.
Vancouver:
Martínez-Rincón JR. Weak-values metrological techniques for parameter
estimation. [Internet] [Doctoral dissertation]. University of Rochester; 2017. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/1802/32745.
Council of Science Editors:
Martínez-Rincón JR. Weak-values metrological techniques for parameter
estimation. [Doctoral Dissertation]. University of Rochester; 2017. Available from: http://hdl.handle.net/1802/32745
NSYSU
22.
Chu, Huan-Kai.
Mutually Anonymous Fair Exchange Protocol with Offline Third Party.
Degree: Master, Computer Science and Engineering, 2015, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808115-230408
► With the rapid development of e-commerce, fair exchange has become an important and issue worthy of further discussion. Additionally, owing to rising awareness of privacy…
(more)
▼ With the rapid development of e-commerce, fair exchange has become an important and issue
worthy of further discussion. Additionally, owing to rising awareness of privacy preservation,
anonymity and fairness have become the required attributes for a fair exchange platform. In
such an application, users expect the exchange process to be performed successfully without
revealing any personal information. When problems arise, a third party must make an appropriate
disposition in order to maintain fairness.
To the best of our knowledge, none of the existing fair exchange schemes achieves mutual
anonymity with an off-line third party. In existing schemes, the third party authorizes the
item before exchange, thereby causing undesired cost to the third party and to users. Therefore,
we propose a novel fair exchange scheme. We adopt an anonymous credential system
and a concurrent signature algorithm to construct the proposed scheme. Our proposed scheme
achieves both mutual anonymity and fairness while the third party remains off-line in the item
exchange protocol.
Advisors/Committee Members: Chun-I Fan (committee member), Chih-Hung Wang (chair), I-Te Chen (chair), Ray-Lin Tso (chair), Chun-Yuan Hsiao (chair).
Subjects/Keywords: fairness; off-line third party; mutually anonymous; fair exchange
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Manager
APA (6th Edition):
Chu, H. (2015). Mutually Anonymous Fair Exchange Protocol with Offline Third Party. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808115-230408
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):
Chu, Huan-Kai. “Mutually Anonymous Fair Exchange Protocol with Offline Third Party.” 2015. Thesis, NSYSU. Accessed December 14, 2019.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808115-230408.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chu, Huan-Kai. “Mutually Anonymous Fair Exchange Protocol with Offline Third Party.” 2015. Web. 14 Dec 2019.
Vancouver:
Chu H. Mutually Anonymous Fair Exchange Protocol with Offline Third Party. [Internet] [Thesis]. NSYSU; 2015. [cited 2019 Dec 14].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808115-230408.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chu H. Mutually Anonymous Fair Exchange Protocol with Offline Third Party. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808115-230408
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
23.
Imada, Akira.
Evolution of learning associative memory : 連想記憶における学習の進化; レンソウ キオク ニオケル ガクシュウ ノ シンカ.
Degree: Nara Institute of Science and Technology / 奈良先端科学技術大学院大学
URL: http://hdl.handle.net/10061/2459
Subjects/Keywords: Mutually Connected Neural Network
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Manager
APA (6th Edition):
Imada, A. (n.d.). Evolution of learning associative memory : 連想記憶における学習の進化; レンソウ キオク ニオケル ガクシュウ ノ シンカ. (Thesis). Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10061/2459
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Imada, Akira. “Evolution of learning associative memory : 連想記憶における学習の進化; レンソウ キオク ニオケル ガクシュウ ノ シンカ.” Thesis, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Accessed December 14, 2019.
http://hdl.handle.net/10061/2459.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Imada, Akira. “Evolution of learning associative memory : 連想記憶における学習の進化; レンソウ キオク ニオケル ガクシュウ ノ シンカ.” Web. 14 Dec 2019.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Imada A. Evolution of learning associative memory : 連想記憶における学習の進化; レンソウ キオク ニオケル ガクシュウ ノ シンカ. [Internet] [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10061/2459.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Imada A. Evolution of learning associative memory : 連想記憶における学習の進化; レンソウ キオク ニオケル ガクシュウ ノ シンカ. [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; Available from: http://hdl.handle.net/10061/2459
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
24.
Kelly, Wessyl R.
Measuring Weak Gravitational Lensing in General Purpose
Imaging Surveys.
Degree: PhD, Physics, 2010, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:11025/
► The quantities and properties of the dark constituents of the universe reveal much about the past and future development of the cosmos. It is thought…
(more)
▼ The quantities and properties of the dark constituents
of the universe reveal much about the past and future development
of the cosmos. It is thought that dark matter provides 85% of the
mass in the universe, and that it is certainly the dominant
component in large structures from galaxies to superclusters. Dark
matter density, clustering, and quantity have repercussions for the
universe's geometry, its past and future evolution (and ultimate
fate), as well as for the more specific question of how structure
has formed.
Weak gravitational lensing is one of the only tools
available to measure dark matter densities directly; most other
methods measure observables that have a poorly known, and often
debated, relationship to the dark mass. Although its direct
sensitivity to mass distributions provides an obvious advantage for
weak lensing, because it is a statistical measurement whose signal
strength typically has been of the same order of magnitude as
systematic and random noise, until recently it has been difficult
to adequately and convincingly control for these. For this reason,
weak lensing data collection has normally been specifically
designed to mitigate these factors. The unique requirements for
optimal
weak lensing observations combined with limited telescope
time have meant that there are relatively few datasets that have
been used for
weak lensing. There is a huge body of past and future
data designed for other types of studies for which
weak lensing
analysis has been considered inappropriate. However,
weak
gravitational lensing techniques have matured. In this work for the
first time, we have applied
weak lensing methods to a dataset that
was not engineered for
weak lensing studies. The NOAO Deep
Wide-Field Survey (NDWFS) optical dataset includes almost 9 square
degrees over 27 subfields with a range of best seeing from 0.66" to
1.20" in three different filters (I, R, and Bw). We use this
dataset to show that
weak lensing analysis may now be successfully
applied to data formerly not considered suitable. We find that
detections of cluster-sized mass densities from this dataset
perform comparably to detections from previous surveys. We
correlate our detections with the Chandra XBoötes results for
extended sources.
Advisors/Committee Members: Dell'Antonio, Ian (Director), Cutts, David (Reader), Tucker, Gregory (Reader).
Subjects/Keywords: weak gravitational lensing
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APA ·
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MLA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kelly, W. R. (2010). Measuring Weak Gravitational Lensing in General Purpose
Imaging Surveys. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11025/
Chicago Manual of Style (16th Edition):
Kelly, Wessyl R. “Measuring Weak Gravitational Lensing in General Purpose
Imaging Surveys.” 2010. Doctoral Dissertation, Brown University. Accessed December 14, 2019.
https://repository.library.brown.edu/studio/item/bdr:11025/.
MLA Handbook (7th Edition):
Kelly, Wessyl R. “Measuring Weak Gravitational Lensing in General Purpose
Imaging Surveys.” 2010. Web. 14 Dec 2019.
Vancouver:
Kelly WR. Measuring Weak Gravitational Lensing in General Purpose
Imaging Surveys. [Internet] [Doctoral dissertation]. Brown University; 2010. [cited 2019 Dec 14].
Available from: https://repository.library.brown.edu/studio/item/bdr:11025/.
Council of Science Editors:
Kelly WR. Measuring Weak Gravitational Lensing in General Purpose
Imaging Surveys. [Doctoral Dissertation]. Brown University; 2010. Available from: https://repository.library.brown.edu/studio/item/bdr:11025/
Nelson Mandela Metropolitan University
25.
Potgieter, Kim Carey.
Complexes of the ReO³⁺/Re(CO)₃⁺ cores with multidentate N,O-Donor chelates.
Degree: MSc, Faculty of Science, 2009, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/1225
► This study investigates the coordination modes of multidentate N,O-donor ligands toward the [ReVO]3+ and fac-[ReI(CO)3]+ cores. The reactions of trans-[ReOX3(PPh3)2] (X = Cl, Br) with…
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▼ This study investigates the coordination modes of multidentate N,O-donor ligands toward the [ReVO]3+ and fac-[ReI(CO)3]+ cores. The reactions of trans-[ReOX3(PPh3)2] (X = Cl, Br) with 4-aminoantipyrine (H2pap) were studied, and the complexes cis-[ReX2(pap)(H2pap)(PPh3)](ReO4) were isolated. The X-ray crystal structures show that both complexes display a distorted octahedral geometry around the central rhenium atom, and are mirror images of each other. The ligand pap is coordinated monodentately through the doubly deprotonated amino nitrogen as an imide, and H2pap acts as a neutral bidentate chelate, with coordination through the neutral amino nitrogen and the ketonic oxygen. The attempted synthesis of the potentially hexadentate Schiff base ligand 1,2-bis(2-{(Z)- [(2-hydroxyphenyl)imido]methyl}phenoxy)benzene from the condensation reaction of 2- (2-((2-aminophenoxy)methyl)benzyloxy)benzenamine and salicylaldehyde produced the zwitterion derivative (H2ono) of 2-{(Z)-[2-(hydroxyphenyl)imino]methyl}phenol. The tridentate Schiff
bases (Z)-2-(2-aminobenzylideneamino)phenol (H3onn) and (Z)-2-(2- (methylthio)benzylideneamino)phenol (Hons) were prepared in a similar manner. The reaction of H2ono with trans-[ReOBr3(PPh3)2] surprisingly led to the isolation of the rhenium(III) complex [ReBr(PPh3)2(ono)], in which ono acts as a dianionic tridentate ligand. The reaction of H3onn with trans-[ReOBr3(PPh3)2] produced the imidorhenium(V) complex salt [ReBr(PPh3)2(onn)]Br, in which onn is coordinated as a trianionic tridentate imidoiminophenolate. The reaction of Hons with [Re(CO)5Br] led to the further decomposition of the Hons ligand, and the rhenium(I) product fac- [Re(CO)3(ons)(Hno)] (Hno = 2-aminophenol) was isolated, with ons coordinated as a monoanionic bidentate chelate (with a free SCH3 group), and Hno present as a neutral monodentate ligand with coordination through the amino nitrogen atom. Abstract Nelson Mandela Metropolitan University vi The reactions of the potentially hexadentate ligand N,N’-{ethane-1,2- diylbis[nitrilomethylidenebenzene-1,2-diyl]}bis(2-aminobenzeneimine) (H2ted) with rhenium(V) starting materials resulted in the decomposition of the H2ted molecule to give different coordinated multidentate ligands coordinated to the rhenium(V) centers. In the reaction of H2ted with trans-[ReOBr3(PPh3)2] in ethanol, the highly unusual ‘3+3’ complex cation [Re(tnn)(Htnn)]Br2 was isolated, in which tnn is coordinated as a tridentate imido-imino-amine, and Htnn is present as a tridentate monoanionic amidoimino- amine chelate (H2tnn = N-(2-aminophenylmethylidene)ethane-1,2-diamine). With trans-[ReO2(py)4]Cl as starting material, the neutral complex [ReO(dne)] was found, in which the tetradentate chelate dne acts as a triamido-imine. The reaction of cis- [ReO2I(PPh3)2] with H2ted led to the formation of the monocationic complex salt [ReO(ane)]PF6, with ane acting as a tetradentate dianionic diamidodiimine (H2ane = N,N’-bis[(2-aminophenyl)methylidene] ethane-1,2-diamine). The seven-coordinate rhenium(III) complex cation…
Advisors/Committee Members: Gerber, T I A Prof.
Subjects/Keywords: Rhenium; Schiff bases
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APA (6th Edition):
Potgieter, K. C. (2009). Complexes of the ReO³⁺/Re(CO)₃⁺ cores with multidentate N,O-Donor chelates. (Masters Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/1225
Chicago Manual of Style (16th Edition):
Potgieter, Kim Carey. “Complexes of the ReO³⁺/Re(CO)₃⁺ cores with multidentate N,O-Donor chelates.” 2009. Masters Thesis, Nelson Mandela Metropolitan University. Accessed December 14, 2019.
http://hdl.handle.net/10948/1225.
MLA Handbook (7th Edition):
Potgieter, Kim Carey. “Complexes of the ReO³⁺/Re(CO)₃⁺ cores with multidentate N,O-Donor chelates.” 2009. Web. 14 Dec 2019.
Vancouver:
Potgieter KC. Complexes of the ReO³⁺/Re(CO)₃⁺ cores with multidentate N,O-Donor chelates. [Internet] [Masters thesis]. Nelson Mandela Metropolitan University; 2009. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10948/1225.
Council of Science Editors:
Potgieter KC. Complexes of the ReO³⁺/Re(CO)₃⁺ cores with multidentate N,O-Donor chelates. [Masters Thesis]. Nelson Mandela Metropolitan University; 2009. Available from: http://hdl.handle.net/10948/1225
26.
Ríos Viqueira, José Ramón.
Formal extension of the relational model for the management of spatial and spatio-temporal data.
Degree: 2011, Universidade da Coruña
URL: http://hdl.handle.net/2183/1127
► [Resumen] En los últioms años, se ha realizado un gran esfuerzo investigador en la manipulación de datos especiales y Sistemas de Información Geográfica (SIG). Una…
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▼ [Resumen]
En los últioms años, se ha realizado un gran esfuerzo investigador en la manipulación de datos especiales y Sistemas de Información Geográfica (SIG).
Una clara limitación de las primeras aproximaciones es la falta de integración entre datos geográficos y alfanuméricos.
Para resolver esto surge el área de
Bases de Datos Espaciales. Los problemas que aparecen en este campo son muchos y complejos. Un primer ejemplo son las peculiaridades de las operaciones espaciales, como el calculo de la intersección espacial de dos superficies. Otro ejemplo es el elegir las estructuras de datos apropiadas (relaciones, capas, etc.) y el conjunto de operaciones adeucado. La combinación con las
Bases de Datos Temporales da lugar a las
Bases de Datos Espacio-temporales, en las que la inclusión de la dimensión temporal complica más los problemas anteriores. A pesar de la gran cantidad de aproximaciones propuestas, no se ha llegado todavía a una solución satisfactoria.
La presente tesis propone una nueva solución que resuelve todos los problemas de modelado de datos espaciales y espacio-temporales resaltados arriba.
Parte del trabajo se completó durante el proyecto ""CHOROCRONOS"": A Research Network for Saptiotemporal Database Systems"", financiado por la Unión Europea.
El modelo propuesto en la tesis define tres tipos de dato punto, línea y superficie, que encajan perfectamente en la percepción humana. La definición de estos tipos de dato se basa en la definición previa de Quanta Espacial.
Las estructuras de datos usadas son las relaciones no anidadas de modelo relacional puro. El conjunto de operaciones relacionales permite alcanzar casi por completo la funcionalidad propuesta en otros modelos. Todas las operaciones han sido definidas en base a un núcleo reducido de operaciones primitvas. Todos los tipos de datos, espaciales, espacio-temporales y convencionales se manipulan de forma uniforme con este conjunto de operaciones.
Advisors/Committee Members: Lorentzos, Nikos A., Brisaboa, Nieves R., Universidade da Coruña. Departamento de Computación.
Subjects/Keywords: Bases de datos
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APA (6th Edition):
Ríos Viqueira, J. R. (2011). Formal extension of the relational model for the management of spatial and spatio-temporal data. (Thesis). Universidade da Coruña. Retrieved from http://hdl.handle.net/2183/1127
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):
Ríos Viqueira, José Ramón. “Formal extension of the relational model for the management of spatial and spatio-temporal data.” 2011. Thesis, Universidade da Coruña. Accessed December 14, 2019.
http://hdl.handle.net/2183/1127.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ríos Viqueira, José Ramón. “Formal extension of the relational model for the management of spatial and spatio-temporal data.” 2011. Web. 14 Dec 2019.
Vancouver:
Ríos Viqueira JR. Formal extension of the relational model for the management of spatial and spatio-temporal data. [Internet] [Thesis]. Universidade da Coruña; 2011. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/2183/1127.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ríos Viqueira JR. Formal extension of the relational model for the management of spatial and spatio-temporal data. [Thesis]. Universidade da Coruña; 2011. Available from: http://hdl.handle.net/2183/1127
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
27.
Corman, Julien.
Knowledge base ontological debugging guided by linguistic evidence : The third party and the alteration of the action of annulment in urban planning law.
Degree: Docteur es, Informatique, 2015, Université Toulouse I – Capitole
URL: http://www.theses.fr/2015TOU10070
► Le résumé en français n'a pas été communiqué par l'auteur.
When they grow in size, knowledge bases (KBs) tend to include sets of axioms which…
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▼ Le résumé en français n'a pas été communiqué par l'auteur.
When they grow in size, knowledge bases (KBs) tend to include sets of axioms which are intuitively absurd but nonetheless logically consistent. This is particularly true of data expressed in OWL, as part of the Semantic Web framework, which favors the aggregation of set of statements from multiple sources of knowledge, with overlapping signatures.Identifying nonsense is essential if one wants to avoid undesired inferences, but the sparse usage of negation within these datasets generally prevents the detection of such cases on a strict logical basis. And even if the KB is inconsistent, identifying the axioms responsible for the nonsense remains a non trivial task. This thesis investigates the usage of automatically gathered linguistic evidence in order to detect and repair violations of common sense within such datasets. The main intuition consists in exploiting distributional similarity between named individuals of an input KB, in order to identify consequences which are unlikely to hold if the rest of the KB does. Then the repair phase consists in selecting axioms to be preferably discarded (or at least amended) in order to get rid of the nonsense. A second strategy is also presented, which consists in strengthening the input KB with a foundational ontology, in order to obtain an inconsistency, before performing a form of knowledge base debugging/revision which incorporates this linguistic input. This last step may also be applied directly to an inconsistent input KB. These propositions are evaluated with different sets of statements issued from the Linked Open Data cloud, as well as datasets of a higher quality, but which were automatically degraded for the evaluation. The results seem to indicate that distributional evidence may actually constitute a relevant common ground for deciding between conflicting axioms.
Advisors/Committee Members: Vieu, Laure (thesis director), Aussenac-Gilles, Nathalie (thesis director).
Subjects/Keywords: Bases de connaissances
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APA (6th Edition):
Corman, J. (2015). Knowledge base ontological debugging guided by linguistic evidence : The third party and the alteration of the action of annulment in urban planning law. (Doctoral Dissertation). Université Toulouse I – Capitole. Retrieved from http://www.theses.fr/2015TOU10070
Chicago Manual of Style (16th Edition):
Corman, Julien. “Knowledge base ontological debugging guided by linguistic evidence : The third party and the alteration of the action of annulment in urban planning law.” 2015. Doctoral Dissertation, Université Toulouse I – Capitole. Accessed December 14, 2019.
http://www.theses.fr/2015TOU10070.
MLA Handbook (7th Edition):
Corman, Julien. “Knowledge base ontological debugging guided by linguistic evidence : The third party and the alteration of the action of annulment in urban planning law.” 2015. Web. 14 Dec 2019.
Vancouver:
Corman J. Knowledge base ontological debugging guided by linguistic evidence : The third party and the alteration of the action of annulment in urban planning law. [Internet] [Doctoral dissertation]. Université Toulouse I – Capitole; 2015. [cited 2019 Dec 14].
Available from: http://www.theses.fr/2015TOU10070.
Council of Science Editors:
Corman J. Knowledge base ontological debugging guided by linguistic evidence : The third party and the alteration of the action of annulment in urban planning law. [Doctoral Dissertation]. Université Toulouse I – Capitole; 2015. Available from: http://www.theses.fr/2015TOU10070
University of Georgia
28.
Sapp, Robyn Lynn.
Statistical approach for dealing with uncertain paternity.
Degree: PhD, Animal and Dairy Science, 2005, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/sapp_robyn_l_200505_phd
► A new method of implementing mixed model equations without constructing the inverse of the relationship matrix (WO-A) was developed and compared to the classical best…
(more)
▼ A new method of implementing mixed model equations without constructing the inverse of the relationship matrix (WO-A) was developed and compared to the classical best linear
unbiased prediction implementation where the inverse of the relationship matrix was constructed (W-A). Both methods were compared in a univariate and multiple-trait situation. For the univariate case, the Pearson correlation between estimates from both methods was 1.00 for fixed and random effects. Similar to the univariate case, parameter estimates were exactly the same using W-A and WO-A for the three traits. These results indicate that W-A could be implemented without the need to construct or to invert the relationship matrix. The second objective was to investigate the implementation of a genetic evaluation when the additive relationship matrix is not completely known due to the presence of uncertain paternity in the pedigree. The average probability of the true sire being identified as such (PSA) and the percentage difference (PD) between PSA and an equal prior probability assigned to each candidate sire were computed. As expected, PSA increased with increasing heritability using one trait. The PD was increased by 50 to 386% when repeated records were used compared with using just one record per animal across varying heritabilities. Using three correlated traits increased PD by 77 to 1,021% when compared with using one record of a trait with varying heritability. The results suggested that the probability of identifying the true sire was the highest when three correlated traits were used to compute PSA and the lowest when only one record was used. The effectiveness of paternity assignments based on 15 markers prior to and after inclusion of phenotypic information was evaluated using simulated data. The molecular information, on average, resolved 94% of the uncertain paternity cases. For the remaining 6%, more than one candidate sires was not excluded based on the marker information. The standardized probability of paternity for each non-excluded candidate sire was used as prior information together with the phenotypic information to discriminate between the non-excluded sires. The prior probability based on marker information was 0.58 and 0.42 for true and non-true candidate sires, respectively. When combined with the phenotypic information, the posterior probability of paternity for the true sires increased to nearly 0.80. Using phenotypic information reduced the posterior probability of paternity of non-true sires by 50% to nearly 0.21. Thus, the true sire was correctly assigned 80% of the time using the phenotypic information when molecular information was not able to unambiguously assign paternity.
Advisors/Committee Members: Romdhane Rekaya.
Subjects/Keywords: Best linear unbiased prediction
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APA (6th Edition):
Sapp, R. L. (2005). Statistical approach for dealing with uncertain paternity. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/sapp_robyn_l_200505_phd
Chicago Manual of Style (16th Edition):
Sapp, Robyn Lynn. “Statistical approach for dealing with uncertain paternity.” 2005. Doctoral Dissertation, University of Georgia. Accessed December 14, 2019.
http://purl.galileo.usg.edu/uga_etd/sapp_robyn_l_200505_phd.
MLA Handbook (7th Edition):
Sapp, Robyn Lynn. “Statistical approach for dealing with uncertain paternity.” 2005. Web. 14 Dec 2019.
Vancouver:
Sapp RL. Statistical approach for dealing with uncertain paternity. [Internet] [Doctoral dissertation]. University of Georgia; 2005. [cited 2019 Dec 14].
Available from: http://purl.galileo.usg.edu/uga_etd/sapp_robyn_l_200505_phd.
Council of Science Editors:
Sapp RL. Statistical approach for dealing with uncertain paternity. [Doctoral Dissertation]. University of Georgia; 2005. Available from: http://purl.galileo.usg.edu/uga_etd/sapp_robyn_l_200505_phd
University of Canterbury
29.
Haq, Abdul.
Improvements in ranked set sampling.
Degree: Mathematics and Statistics, 2014, University of Canterbury
URL: http://hdl.handle.net/10092/9661
► The main focus of many agricultural, ecological and environmental studies is to develop well designed, cost-effective and efficient sampling designs. Ranked set sampling (RSS) is…
(more)
▼ The main focus of many agricultural, ecological and environmental studies is to develop well designed, cost-effective and efficient sampling designs. Ranked set sampling (RSS) is one of those sampling methods that can help accomplish such objectives by incorporating prior information and expert knowledge to the design. In this thesis, new RSS schemes are suggested for efficiently estimating the population mean. These sampling schemes can be used as cost-effective alternatives to the traditional simple random sampling (SRS) and RSS schemes. It is shown that the mean estimators under the proposed sampling schemes are at least as efficient as the mean estimator with SRS. We consider the best linear unbiased estimators (BLUEs) and the best linear invariant estimators (BLIEs) for the unknown parameters (location and scale) of a location-scale family of distributions under double RSS (DRSS) scheme. The BLUEs and BLIEs with DRSS are more precise than their counterparts based on SRS and RSS schemes. We also consider the BLUEs based on DRSS and ordered DRSS (ODRSS) schemes for the unknown parameters of a simple linear regression model using replicated observations. It turns out that, in terms of relative efficiencies, the BLUEs under ODRSS are better than the BLUEs with SRS, RSS, ordered RSS (ORSS) and DRSS schemes.
Quality control charts are widely recognized for their potential to be a powerful process monitoring tool of the statistical process control. These control charts are frequently used in many industrial and service organizations to monitor in-control and out-of-control performances of a production or manufacturing process. The RSS schemes have had considerable attention in the construction of quality control charts. We propose new exponentially weighted moving average (EWMA) control charts for monitoring the process mean and the process dispersion based on the BLUEs obtained under ORSS and ODRSS schemes. We also suggest an improved maximum EWMA control chart for simultaneously monitoring the process mean and dispersion based on the BLUEs with ORSS scheme. The proposed EWMA control charts perform substantially better than their counterparts based on SRS and RSS schemes. Finally, some new EWMA charts are also suggested for monitoring the process dispersion using the best linear unbiased absolute estimators of the scale parameter under SRS and RSS schemes.
Subjects/Keywords: Ranked set sampling; Best linear unbiased estimator; Control chart
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APA (6th Edition):
Haq, A. (2014). Improvements in ranked set sampling. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/9661
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):
Haq, Abdul. “Improvements in ranked set sampling.” 2014. Thesis, University of Canterbury. Accessed December 14, 2019.
http://hdl.handle.net/10092/9661.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Haq, Abdul. “Improvements in ranked set sampling.” 2014. Web. 14 Dec 2019.
Vancouver:
Haq A. Improvements in ranked set sampling. [Internet] [Thesis]. University of Canterbury; 2014. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/10092/9661.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Haq A. Improvements in ranked set sampling. [Thesis]. University of Canterbury; 2014. Available from: http://hdl.handle.net/10092/9661
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Open Universiteit Nederland
30.
Kolenbrander, Stefan.
The Interaction Effect of Practice Schedules and Practice Types on Unbiased Reasoning.
Degree: Master, Welten Institute, 2018, Open Universiteit Nederland
URL: http://hdl.handle.net/1820/5efc78cc-1635-4c09-9cbd-bf21608d24dd
► Critical thinking (CT) is considered an essential 21st century skill needed in the growing complexity of society and professional environments. A critical thinker uses proper…
(more)
▼ Critical thinking (CT) is considered an essential 21st century skill needed in the growing complexity of society and professional environments. A critical thinker uses proper reasoning, that is reasoning without biases, in order to establish thought-out judgements. Alarmingly however, studies show that students have great difficulty with proper reasoning during judgement making. Meta-analysis on fostering CT-skills shows that teaching explicit knowledge on biases in reasoning combined with practice works best. However, what kind of practice yields the highest performance and transfer is still debated. Accordingly, the aim of this study was to test the effects of practice schedules and practice types in order to have students perform better on a reasoning performance test, that is unbiased reasoning. The interaction effect of interleaving tasks (opposed to blocked practice) with worked example (WE) practice (opposed to problem solving ((PS)) practice ) was hypothized to be promising. Interleaving practice, although demanding more pressure on cognitive load, might have learners discriminate between task types faster. WE practice, known to establish transfer, might also reduce this cognitive load, thereby enabling learners to benefit from the assumed positive effects of the interleaving practice schedule. Participants involved 116 second year students of the Avans Hogeschool following the Integral Risk Management program. A between and within-group design was set up in order to test the hypotheses by comparing the final scores between a pretest, post-test and delayed post-test (14 days). Participants were randomly assigned to one of four conditions namely; WE + interleaved practice, WE + blocked practice, PS + interleaved practice or PS + blocked practice. The specific reasoning task types used in the experiment involved syllogisms, Conjunction fallacies, Base-rate fallacies and the transfer tasks involved the Wason selection problem and the Contingency table problem. Measurements involved a reasoning tests containing 3 tasks per tasks type. The post and delayed post also contained the two transfer tasks. Results showed that there were no significant differences between the four conditions, therefore it is concluded that the hypothized interaction effect needs to be rejected. Possibly, the reasoning tasks were already discriminating enough by themselves and/or effects were eliminated caused by retrieval ques in the repetition of context features used per task. Accordingly, possible directions for future research are given.
Subjects/Keywords: Critical thinking,; Unbiased reasoning; Interleaved practice; Worked example
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APA (6th Edition):
Kolenbrander, S. (2018). The Interaction Effect of Practice Schedules and Practice Types on Unbiased Reasoning. (Masters Thesis). Open Universiteit Nederland. Retrieved from http://hdl.handle.net/1820/5efc78cc-1635-4c09-9cbd-bf21608d24dd
Chicago Manual of Style (16th Edition):
Kolenbrander, Stefan. “The Interaction Effect of Practice Schedules and Practice Types on Unbiased Reasoning.” 2018. Masters Thesis, Open Universiteit Nederland. Accessed December 14, 2019.
http://hdl.handle.net/1820/5efc78cc-1635-4c09-9cbd-bf21608d24dd.
MLA Handbook (7th Edition):
Kolenbrander, Stefan. “The Interaction Effect of Practice Schedules and Practice Types on Unbiased Reasoning.” 2018. Web. 14 Dec 2019.
Vancouver:
Kolenbrander S. The Interaction Effect of Practice Schedules and Practice Types on Unbiased Reasoning. [Internet] [Masters thesis]. Open Universiteit Nederland; 2018. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/1820/5efc78cc-1635-4c09-9cbd-bf21608d24dd.
Council of Science Editors:
Kolenbrander S. The Interaction Effect of Practice Schedules and Practice Types on Unbiased Reasoning. [Masters Thesis]. Open Universiteit Nederland; 2018. Available from: http://hdl.handle.net/1820/5efc78cc-1635-4c09-9cbd-bf21608d24dd
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Open Access Theses and Dissertations
