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Teses / dissertações sobre o tema "Braid group"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 20 de fevereiro de 2023

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1

Longrigg, Jonathan James. "Aspects of Braid group cryptography." Thesis, University of Newcastle Upon Tyne, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492947.

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2

Franko, Jennifer M. "Braid group representations via the Yang Baxter equation." [Bloomington, Ind.] : Indiana University, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3278226.

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Thesis (Ph.D.)--Indiana University, Dept. of Mathematics, 2007.<br>Source: Dissertation Abstracts International, Volume: 68-09, Section: B, page: 5995. Advisers: Zhenghan Wang; Kent Orr. Title from dissertation home page (viewed May 9, 2008).

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3

Weinberger, Oskar. "The braid group, representations and non-abelian anyons." Thesis, KTH, Matematik (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-167993.

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This bachelor’s thesis concerns unitary linear representations of the braid group, motivated by their connection to two dimensional particle statistics and certain quasi-particles called non-abelian anyons. Particle statistics in two dimensions is related to the braid group via the fundamental group of the configuration space of indistinguishable particles in two dimensions, and non-abelian anyons correspond to non-commutative unitary representations of the braid group. In the aim of understanding these connections and studying the mathematical possibilities for non-abelian anyons, algebraic a

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4

Cornwell, Christopher R. "On the Combinatorics of Certain Garside Semigroups." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1381.pdf.

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5

Puente, Philip C. "Crystallographic Complex Reflection Groups and the Braid Conjecture." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1011877/.

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Crystallographic complex reflection groups are generated by reflections about affine hyperplanes in complex space and stabilize a full rank lattice. These analogs of affine Weyl groups have infinite order and were classified by V.L. Popov in 1982. The classical Braid theorem (first established by E. Artin and E. Brieskorn) asserts that the Artin group of a reflection group (finite or affine Weyl) gives the fundamental group of regular orbits. In other words, the fundamental group of the space with reflecting hyperplanes removed has a presentation mimicking that of the Coxeter presentation;

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6

Henderson, Roger William. "Cryptanalysis of braid group cryptosystem and related combinatorial structures." Thesis, Royal Holloway, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440519.

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7

Sweeney, Andrew. "A Study of Topological Invariants in the Braid Group B2." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etd/3407.

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The Jones polynomial is a special topological invariant in the field of Knot Theory. Created by Vaughn Jones, in the year 1984, it is used to study when links in space are topologically different and when they are topologically equivalent. This thesis discusses the Jones polynomial in depth as well as determines a general form for the closure of any braid in the braid group B2 where the closure is a knot. This derivation is facilitated by the help of the Temperley-Lieb algebra as well as with tools from the field of Abstract Algebra. In general, the Artin braid group Bn is the set of braids on

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8

Penrod, Keith G. "Infinite Product Group." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/976.

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The theory of infinite multiplication has been studied in the case of the Hawaiian earring group, and has been seen to simplify the description of that group. In this paper we try to extend the theory of infinite multiplication to other groups and give a few examples of how this can be done. In particular, we discuss the theory as applied to symmetric groups and braid groups. We also give an equivalent definition to K. Eda's infinitary product as the fundamental group of a modified wedge product.

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9

East, James Phillip Hinton. "On Monoids Related to Braid Groups and Transformation Semigroups." School of Mathematics and Statistics, 2006. http://hdl.handle.net/2123/2438.

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10

East, James Phillip Hinton. "On Monoids Related to Braid Groups and Transformation Semigroups." Thesis, The University of Sydney, 2005. http://hdl.handle.net/2123/2438.

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11

Mund, Jens. "Quantum field theory of particles with braid group statistics in 2+1 dimensions." [S.l. : s.n.], 1998. http://www.diss.fu-berlin.de/1999/7/index.html.

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12

Meiners, Justin. "Computing the Rank of Braids." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/8947.

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We describe a method for computing rank (and determining quasipositivity) in the free group using dynamic programming. The algorithm is adapted to computing upper bounds on the rank for braids. We test our method on a table of knots by identifying quasipositive knots and calculating the ribbon genus. We consider the possibility that rank is not theoretically computable and prove some partial results that would classify its computational complexity. We then present a method for effectively brute force searching band presentations of small rank and conjugate length.

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13

Sönnerlind, Erik, and Gustav Brage. "Braid group statistics and exchange matrices of non-abelian anyons : with representations in Clifford algebra." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231567.

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When leaving classical physics and entering the realm of quantum physics, there are many new concepts being introduced. One of the most fundamental ideas in quantum mechanics is that particles no longer have exact known positions, but instead expected values and prob- abilities. This leads to the phenomena of truly identical particles, since they no longer can be distinguished simply by their positions. An important property differentiating different kinds of particles is how a system behaves when two such identical particles are exchanged. Historically, this divided particles into bosons and

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14

Ison, Molly Elizabeth. "Two Aspects of Topology in Graph Configuration Spaces." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/29214.

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A graph configuration space is generated by the movement of a finite number of robots on a graph. These configuration spaces of points in a graph are topologically interesting objects. By using local, combinatorial properties, we define a new classification of graphs whose configuration spaces are pseudomanifolds with boundary. In algebraic topology, graph configuration spaces are closely related to classical braid groups, which can be described as fundamental groups of configuration spaces of points in the plane. We examine this relationship by finding a presentation for the fundamental group

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15

Hartsell, Jack. "A Normal Form for Words in the Temperley-Lieb Algebra and the Artin Braid Group on Three Strands." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etd/3504.

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The motivation for this thesis is the computer-assisted calculation of the Jones poly- nomial from braid words in the Artin braid group on three strands, denoted B3. The method used for calculation of the Jones polynomial is the original method that was created when the Jones polynomial was first discovered by Vaughan Jones in 1984. This method utilizes the Temperley-Lieb algebra, and in our case the Temperley-Lieb Algebra on three strands, denoted A3, thus generalizations about A3 that assist with the process of calculation are pursued.

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Calligaris, Pierpaolo. "Finite orbits of the action of the pure braid group on the character variety of the Riemann sphere with five boundary components." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/25536.

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In this thesis, we classify finite orbits of the action of the pure braid group over a certain large open subset of the SL(2,C) character variety of the Riemann sphere with five boundary components, i.e. Σ5. This problem arises in the context of classifying algebraic solutions of the Garnier system G2, that is the two variable analogue of the famous sixth Painleve equation PVI. The structure of the analytic continuation of these solutions is described in terms of the action of the pure braid group on the fundamental group of Σ5. To deal with this problem, we introduce a system of co-adjoint co

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17

Brien, Renaud. "Normal Forms in Artin Groups for Cryptographic Purposes." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23145.

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With the advent of quantum computers, the security of number-theoretic cryptography has been compromised. Consequently, new cryptosystems have been suggested in the field of non-commutative group theory. In this thesis, we provide all the necessary background to understand and work with the Artin groups. We then show that Artin groups of finite type and Artin groups of large type possess an easily-computable normal form by explicitly writing the algorithms. This solution to the word problem makes these groups candidates to be cryptographic platforms. Finally, we present some combinatorial prob

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18

Pizarro, Pavel Jesus Henriquez. "Representações do grupo de tranças por automorfismos de grupos." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-16042012-102241/.

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A partir de um grupo H e um elemento h em H, nós definimos uma representação : \'B IND. n\' Aut(\'H POT. n\' ), onde \'B IND. n\' denota o grupo de trança de n cordas, e \'H POT. n\' denota o produto livre de n cópias de H. Chamamos a a representação de tipo Artin associada ao par (H, h). Nós também estudamos varios aspectos de tal representação. Primeiramente, associamos a cada trança um grupo \' IND. (H,h)\' () e provamos que o operador \' IND. (H,h)\' determina um grupo invariante de enlaçamentos orientados. Então damos uma construção topológica da representação de tipo Artin e do in

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19

Chettih, Safia. "Dancing in the stars| Topology of non-k-equal configuration spaces of graphs." Thesis, University of Oregon, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10193648.

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<p> We prove that the non-<i>k</i>-equal configuration space of a graph has a discretized model, analogous to the discretized model for configurations on graphs. We apply discrete Morse theory to the latter to give an explicit combinatorial formula for the ranks of homology and cohomology of configurations of two points on a tree. We give explicit presentations for homology and cohomology classes as well as pairings for ordered and unordered configurations of two and three points on a few simple trees, and show that the first homology group of ordered and unordered configurations of two points

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20

Akueson, Anani. "Eléments de géométrie tressée." Valenciennes, 1998. https://ged.uphf.fr/nuxeo/site/esupversions/2b3a587c-d83e-4d2a-96f1-a05576bb88fb.

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Notre thèse est consacrée à la géométrie tressée, en particulier celle qui traite des objets munis d'un opérateur de Yang-Baxter (YB) (autrement dit, une solution de l'équation de Yang-Baxter quantique (EYBQ). Dans la première partie, sont étudiées certaines structures géométriques sur l'hyperboloïde quantique (une déformation de l'hyperboloïde classique). Les critères de raison d'être de tous les objets introduits sont de deux types : invariance par rapport à l'action du groupe quantique correspondant et platitude de la déformation (cela signifie simplement que la quantité d'éléments reste in

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21

Guichard, Christelle. "Les nombres de Catalan et le groupe modulaire PSL2(Z)." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAM057/document.

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Dans ce mémoire de thèse, on étudie le morphisme de monoïde $mu$du monoïde libre sur l'alphabet des entiers $nb$,`a valeurs dans le groupe modulaire $PSL_2(zb)$,considéré comme monoïde, défini pour tout entier $a$ par $mu(a)=begin{pmatrix} 0 & -1 1 & a+1 end{pmatrix}.$Les nombres de Catalan apparaissent naturellement dans l'étudede sous-ensembles du noyau de $mu$.Dans un premier temps, on met en évidence deux systèmes de réécriture, l'un sur l'alphabet fini ${0,1}$, l'autresur l'alphabet infini des entiers $nb$ et on montreque ces deux systèmes de réécriture définissent des présentatio

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22

Gonzalez, Pagotto Pablo. "Sur les monoïdes des classes de groupes de tresses." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAM049.

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Hurwitz a montre qu’un revêtement ramifié f:M→N de surfaces avec lieu de ramification P⊂N détermine et est déterminé, à un automorphisme intérieur près du groupe symétrique S_m , par un homomorphisme π_1(NP, ∗) → S_m . Ce résultat réduit les questions d’existence et d’unicité à un problème combinatoire. Pour un ensemble de générateurs convenable de π_1(NP, ∗), une représentation π_1(NP, ∗) → S_m détermine et est déterminée par une suite (a_1 , b_1 , . . . , a_g , b_g , z_1, . . . , z_k ) d’éléments de S_m satisfaisant [a_1 , b_1 ] · · · [a_g , b_g ]z_1 · · · z_k = 1. La suite (a_1, b_1 , . . .

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23

Cumplido, Cabello María. "Sous-groupes paraboliques et généricité dans les groupes d'Artin-Tits de type sphérique." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S022/document.

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Dans la première partie de cette thèse on étudiera la conjecture de généricité: dans le graphe de Cayley du groupe modulaire d'une surface fermée on regarde une boule centrée à l'identité et on s'intéresse à la proportion de sommets pseudo-Anosov dans cette boule. La conjecture de généricité affirme que cette proportion doit tendre vers 1 quand le rayon de la boule tend vers l'infini. On montre qu'elle est bornée inférieurement par un nombre strictement positif et on montre des résultats similaires pour une grande classe de sous-groupes du groupe modulaire. On présente aussi des résultats anal

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24

Kell, Christian [Verfasser], Martin [Akademischer Betreuer] Kreuzer, and Vladimir [Akademischer Betreuer] Shpilrain. "A Structure-based Attack on the Linearized Braid Group-based Diffie-Hellman Conjugacy Problem in Combination with an Attack using Polynomial Interpolation and the Chinese Remainder Theorem / Christian Kell ; Martin Kreuzer, Vladimir Shpilrain." Passau : Universität Passau, 2019. http://d-nb.info/1190352699/34.

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25

Stylianakis, Charalampos. "Braid groups, mapping class groups, and Torelli groups." Thesis, University of Glasgow, 2016. http://theses.gla.ac.uk/7466/.

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This thesis discusses subgroups of mapping class groups of particular surfaces. First, we study the Torelli group, that is, the subgroup of the mapping class group that acts trivially on the first homology. We investigate generators of the Torelli group, and we give an algorithm that factorizes elements of the Torelli group into products of particular generators. Furthermore, we investigate normal closures of powers of standard generators of the mapping class group of a punctured sphere. By using the Jones representation, we prove that in most cases these normal closures have infinite index in

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26

Kalka, Arkadius G. "Linear representations of braid groups and braid-based cryptography." [S.l.] : [s.n.], 2007. http://www.gbv.de/dms/weimar/toc/58986095X_toc.pdf.

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27

Kim, Djun Maximilian. "Braid groups, orderings, and algorithms." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0028/NQ38913.pdf.

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28

Lawrence, Ruth Jayne. "Homology representations of braid groups." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236125.

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29

McLeay, Alan. "Subgroups of mapping class groups and braid groups." Thesis, University of Glasgow, 2018. http://theses.gla.ac.uk/9075/.

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This thesis studies the subgroup structure of mapping class groups. We use techniques that fall into two categories: analysing the group action on a family of simplicial complexes, and investigating regular, finite-sheeted covering spaces. We use the first approach to prove that a wide class of normal subgroups of mapping class groups of punctured surfaces are geometric, that is, they have the extended mapping class group as their group of automorphisms, expanding on work of BrendleMargalit. For example, we determine that every member of the Johnson filtration is geometric. By considering punc

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30

Bangert, Patrick David. "Algorthmic problems in the braid groups." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417929.

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Recio-Mitter, David. "Topological complexity of surface braid groups." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=237921.

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The topological complexity was introduced by Michael Farber in 2003 motivated by applications of algebraic topology to robotics. It is a numerical homotopy invariant of a space which measures the instability of motion planning. In this thesis we determine this invariant for unordered configuration spaces of surfaces in many cases and reduce it to a few possible values in other cases. We also determine the topological complexity of mixed configuration spaces and related spaces. In contrast to the ordered configuration spaces, these computations remained elusive because the standard methods do n

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Rodrigues, Lucas, and Daniel Karlsson. "Why Do We Hate Brands? : A qualitative study of how the dark side of branding is influenced by group identification." Thesis, Umeå universitet, Företagsekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-111206.

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Abstract The purpose of this thesis was to gain a better understanding of the relatively new concept of Brand Hate. More specifically, how Brand Hate can occur in people with no to little experience with certain brands, so called non-customers. We want to believe that humans are a rational being that takes decisions based on all the available information and does not jump to conclusions before all options have been exhausted. But upon closer examination theoretical concepts such as brand love can be found. A concept that argues that users of a brand utilize the brand itself in order to interna

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Kwon, Oh Kang. "Irreducible representations of braid groups via quantized enveloping algebras." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/32624.

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Gandolfi, Guillaume. "Résultats sur les extensions singulières des groupes d'Artin et de tresses virtuelles." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMC215.

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Cette thèse se propose d’étudier deux objets liés aux monoïdes de tresses singulières, le morphisme de désingularisation et la famille des invariants de Vassiliev, transposés dans les cadres respectifs des monoïdes d’Artin singuliers et des monoïdes de tresses virtuelles singulières. Dans le premier chapitre, on rappelle les définitions de ces deux objets dans leur contexte d'origine, celui des monoïdes de tresses singulières qui sont des extensions des groupes de tresses, puis celles des principales problématiques s'y rapportant, qui sont la déterminations de l'injectivité du morphisme de dés

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Tosello, Francesco. "Una presentazione dei gruppi delle trecce." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21278/.

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The braid groups can be thought of as a generalisation of the symmetric group, in which not only the permutation but also the direction of exchange of points is considered; the consequence of this is that transpositions no longer have order two, indeed in the braid groups there are no elements of finite order. In this paper we follow the idea of Fox R. and Neuwirth L. to discuss a proof of the presentation of the braid groups. First of all we recall some prerequisites: mainly results on groups, CW complexes, foundamental groups and covering spaces. Then we give the proof of this presentation

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Valeriani, D. "Improving group decision making with collaborative brain-computer interfaces." Thesis, University of Essex, 2017. http://repository.essex.ac.uk/19981/.

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Groups are generally superior to individuals in making decisions. However, time constraints and authoritarian leaders could nullify the potential advantages provided by groups. This thesis proposes a hybrid collaborative Brain-Computer Interface (cBCI) for improving performance in group decision-making. Neural signals recorded via electroencephalography are integrated with other physiological and behavioural measures to predict the likelihood of the user being correct in a decision, i.e., decision confidence. Behavioural responses from multiple users are then weighed according to these confide

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Combe, Noémie. "On a new cell decomposition of a complement of the discriminant variety : application to the cohomology of braid groups." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0140.

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Cette thèse concerne principalement deux objets classiques étroitement liés: d'une part la variété des polynômes complexes unitaires de degré $d>1$ à une variable, et à racines simples (donc de discriminant différent de zéro), et d'autre part, les groupes de tresses d'Artin avec d brins. Le travail présenté dans cette thèse propose une nouvelle approche permettant des calculs cohomologiques explicites à coefficients dans n'importe quel faisceau. En vue de calculs cohomologiques explicites, il est souhaitable d'avoir à sa disposition un bon recouvrement au sens de Čech. L'un des principaux o

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Ma, Zheng. "Probabilistic Boolean network modeling for fMRI study in Parkinson's disease." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/4172.

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Recent research has suggested disrupted interactions between brain regions may contribute to some of the symptoms of motor disorders such as Parkinson’s Disease (PD). It is therefore important to develop models for inferring brain functional connectivity from data obtained through non-invasive imaging technologies, such as functional magnetic resonance imaging (fMRI). The complexity of brain activities as well as the dynamic nature of motor disorders require such models to be able to perform complex, large-scale, and dynamic system computation. Traditional models proposed in the literature suc

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Evens, Samuel R. (Samuel Robert). "Transfer for compact lie groups, induced representations, and braid relations." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/80453.

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Damiani, Céleste. "The topology of loop braid groups : applications and remarkable quotients." Caen, 2016. http://www.theses.fr/2016CAEN2021.

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Dans cette thèse nous étudions les groupes de tresses de cercles, nous explorons leurs applications topologiques et certains quotients remarquables. La thèse se compose de quatre parties : - Unification des formalismes pour les groupes de tresses de cercles. Plusieurs formulations ont été utilisées pour les groupes de tresses de cercles en différents domaines ; nous présentons ces interprétations et prouvons leur équivalence. - Une version topologique du théorème de Markov pour les entrelacs de tores ruban. Avec l’interprétation des tresses de cercles comme objets noués dans l’espace de dimens

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Coles, Ben. "Conjugacy in braid groups and the LKB representation, and Bessis-Garside groups of rank 3." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/90207/.

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In the first part of this thesis, we give a survey of the conjugacy problem in the braid group, describing the solution provided by Garside theory, and outlining the progress that has been made towards a polynomial time solution in recent years using refinements of Garside's solution, and the Thurston-Nielsen classification of braids, which reduces the problem to the case of pseudo-Anosov braids. Using the faithful Lawrence-Krammer-Bigelow representation of the braid groups, we consider how the eigenspaces of pseudo-Anosov braids can under certain conditions yield invariants of their conjugacy

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Yurasovskaya, Ekaterina. "Homotopy string links over surfaces." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2747.

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In his 1947 work "Theory of Braids" Emil Artin asked whether the braid group remained unchanged when one considered classes of braids under linkhomotopy, allowing each strand of a braid to pass through itself but not through other strands. We generalize Artin's question to string links over orientable surface M and show that under link-homotopy surface string links form a group PBn(M), which is isomorphic to a quotient of the surface pure braid group PBn(M). Surface braid groups and their properties are an area of active research by González-Meneses, Paris and Rolfsen, Goçalves and Guaschi, an

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Repo, Jesper. "Brand Culture : Between consumers and brands." Thesis, Linnéuniversitetet, Ekonomihögskolan, ELNU, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-15220.

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The empirical data that lies behind this survey comes from field work between 1992 and 1995. This field work represents work I made myself as a sales-man for the company, Malmberg Original Water. The task was to implement the Malmberg mineral water brand on the restaurant market of the South-Swedish area. Our aim was to reach the upper-scale, premium market of restaurants. The mission was successfully completed, and at 1996 we had completed the position as the most exclusively positioned mineral water brand in Skåne (Southernmost Sweden). How could we fulfill this mission so fast, and with a v

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Jordan, David Andrew. "Quantized multiplicative quiver varieties and actions of higher genus braid groups." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/67790.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 109-112).<br>In this thesis, a new class of algebras called quantized multiplicative quiver varieties A (Q), is constructed, depending upon a quiver Q, its dimension vector d, and a certain "moment map" parameter . The algebras Ad(Q) are obtained via quantum Hamiltonian reduction of another algebra D,(Matd(Q)) relative to a quantum moment map pq, both of which are also constructed herein. The algebras Dq(Matd(Q)) and A (Q) bear

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Self, Megan. "Identifying the Physical Activity Needs of Outpatients with a Traumatic Brain Injury." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84274/.

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Traumatic brain injury (TBI) is a significant public health issue due to the incidence, complexity, and cost associated with treatment – emphasizing the need for effective rehabilitation programs. One mode of rehabilitation that has been demonstrated to improve health and reduce healthcare costs is health promotion programs (HPPs) that incorporate physical activity (PA). However, PA is not currently incorporated into the standard of care post-TBI. The purpose of this study was to conduct group interviews among individuals with a TBI undergoing outpatient rehabilitation to determine PA knowledg

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Beschin, Nicoletta. "Imagining half the world : investigation of representational neglect with group studies and single cases." Thesis, University of Aberdeen, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275060.

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Based on ten experiments, this thesis examines representational neglect in brain damaged patients and in matched controls. The patients sometimes show a specific deficit in visual imaging: neglected one half of their mental representations. Although several studies addressed the issue of visuo-perceptual neglect, the representational defect is underinvestigated. Only a few standardized tests are available for its detention and assessment, and therefore rarely it is diagnosed in clinical practise or investigated in experimental work. In this thesis some new tests to investigate representat

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Pool, Jonathan. "Brief group music therapy for acquired brain injury : cognition and emotional needs." Thesis, Anglia Ruskin University, 2013. http://arro.anglia.ac.uk/312324/.

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Injuries to the brain are the leading cause of permanent disability and death. Survivors of acquired brain injury (ABI) experience cognitive impairments and emotional problems. These often persist into community rehabilitation and are among the most significant needs for those in chronic stages of rehabilitation. There is a dearth of research providing evidence of music therapy addressing cognitive deficits and emotional needs in a holistic approach. This research answers the question how can brief group music therapy address cognitive functional gains and emotional needs of people with acquir

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Melocro, Letícia. "Uma ordenação para o grupo de tranças puras." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-11012017-142019/.

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Neste trabalho apresentamos uma descrição geométrica do grupo de tranças no disco Bpnq e sua apresentação em termos de geradores e relatores no famoso teorema da apresentação de Artin. Mostraremos também que o grupo de tranças puras PBpnq, grupo que possui a permutação trivial das cordas, é bi-ordenável, ou seja, exibiremos uma ordenação para PBpnq que será invariante pela multiplicação em ambos os lados. Esse processo é dado a partir da combinação da técnica de pentear Artin e a expansão Magnus para grupos livres.<br>In this work, we present a geometric description of the braids groups of the

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Moldrich, Randal Xavier Joseph 1975. "Functional roles of group II metabotropic glutamate receptors in injury and epilepsy." Monash University, Dept. of Pharmacology, 2002. http://arrow.monash.edu.au/hdl/1959.1/7710.

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Thomas, Veronica L. "SECRET CONSUMPTION: RESPONSES TO SOCIAL GROUP INFLUENCE UNDER CONDITIONS OF CONFLICTING BRAND PREFERENCES." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1301945806.

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