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Dissertations / Theses on the topic 'Coordinates'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 June 2025

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1

Troia, Emily M. "Mental Coordinates." Cleveland State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1494167936224508.

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2

Lidberg, Petter. "Barycentric and harmonic coordinates." Thesis, Uppsala universitet, Algebra och geometri, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-179487.

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3

Kaafar, Mohamed Ali. "Securiting Internet coordinates systems." Nice, 2007. http://www.theses.fr/2007NICE4023.

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Dans ce type de systèmes, l’idée principale est que si les distances réseau entre différents nœuds Internet peuvent être plongées dans un espace approprié, alors les distances non mesurées peuvent être estimées en utilisant une simple opération de calcul de distance géométrique dans cet espace. Récemment, on a pu prouver que ces systèmes `a base de coordonnées étaient précis, avec une faible erreur de prédiction. Cependant, ces systèmes se basent souvent sur une coordination entre les nœuds, et font l’ hypothèse que les informations reportées par les nœuds sont correctes. Dans cette thèse, nou

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4

Myers, Colin. "Reducing clutter in parallel coordinates /." Leeds : University of Leeds, School of Computer Studies, 2008. http://www.comp.leeds.ac.uk/fyproj/reports/0708/Myers.pdf.

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5

Skelton, George. "Variation of Fenchel Nielsen coordinates." Thesis, University of Warwick, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247640.

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6

Mohan, Srividya. "Reaction coordinates for RNA conformational changes." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33815.

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This work investigates pathways of conformational transitions in ubiquitous RNA structural motifs. In our lab, we have developed multi-scale structural datamining techniques for identification of three-dimensional structural patterns in high-resolution crystal structures of globular RNA. I have applied these techniques to identify variations in the conformations of RNA double-helices and tetraloops. The datamined structural information is used to propose reaction coordinates for conformational transitions involved in double-strand helix propagation and tetraloop folding in RNA. I have also pre

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7

Sharples, Jason, and n/a. "Spacetime initial data and quasispherical coordinates." University of Canberra. Mathematics &Statistics, 2001. http://erl.canberra.edu.au./public/adt-AUC20061108.151839.

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In General Relativity, the Einstein field equations allow us to study the evolution of a spacelike 3-manifold, provided that its metric and extrinsic curvature satisfy a system of geometric constraint equations. The so-called Einstein constraint equations, arise as a consequence of the fact that the 3-manifold in question is necessarily a submanifold of the spacetime its evolution defines. This thesis is devoted to a study of the structure of the Einstein constraint system in the special case when the spacelike 3-manifold also satisfies the quasispherical ansatz of Bartnik [B93]. We make no me

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8

Sharp, J. R. "Reactive scattering calculations in hyperspherical coordinates." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234214.

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9

Yurttas, Saadet Öykü. "Dynnikov coordinates and pseudo-Anosov braids." Thesis, University of Liverpool, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569517.

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The aim of this thesis is to study dynamical properties of pseudo -Anosov braids on the n-times punctured disk Dn making use of a particular coordinate system called the Dynnikov coordinate system. The Dynnikov coordinate system gives a homeomorphism from the space of measured foliations MFn on Dn (up to a certain equivalence relation) to Sn = R2n-4\ {O}, and restricts to a bijection from the set of integral laminations (disjoint unions of finitely many essential simple closed curves) on Dn to Cn = Z2n-4 \ {O}. In the first part of the thesis, we introduce a new method for computing the topolo

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10

Silva, Francisco Allan Quintela. "Geometric coordinates parametric functions in winplot." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12408.

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nÃo hÃ<br>Desde o princÃpio, as sequÃncias e sÃries numÃricas geraram interesse entre os matemÃticos. Sua aplicabilidade atual Ã extensa e inclui o cÃlculo refinado da Ãrea da superfÃcie e do volume de uma variedade de sÃlidos. Neste trabalho usaremos as diferenÃas entre os elementos de uma sequÃncia finita a fim de encontrar leis que expressem as tendÃncias nela contidas. Veremos tambÃm como um estudo simples sobre progressÃes aritmÃticas de ordens diversas Ã capaz de fornecer funÃÃes paramÃtricas de curvas passando por pontos prÃ-definidos, de superfÃcies contendo curvas prÃ-definidas ou, at

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11

van, Wagtendonk Martijn. "A striving flirtation in spliced coordinates." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1102448295.

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12

Van, Wagtendonk Martijn. "A striving flirtation in spliced coordinates /." Connect to this title online, 1998. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1102448295.

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13

Voll, Robert W. "Comparing the accuracy and efficiency of algorithms for converting cartesian to geodetic coordinates." Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-02162010-020028/.

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14

Francis, Gerald. "An Algorithm and System for Measuring Impedance in D-Q Coordinates." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/26462.

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This dissertation presents work conducted at the Center for Power Electronics Systems (CPES) at Virginia Polytechnic Institute and State University. Chapter 1 introduces the concept of impedance measurement, and discusses previous work on this topic. This chapter also addresses issues associated with impedance measurement. Chapter 2 introduces the analyzer architecture and the proposed algorithm. The algorithm involves locking on to the voltage vector at the point of common coupling between the analyzer and the system via a PLL to establish a D-Q frame. A series of sweeps are performed, inje

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15

Heide, Bernd Michael. "Measuring Absolute Space Coordinates in Two Dimensions." Universitätsbibliothek Chemnitz, 2000. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200000758.

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The paper describes how a two-dimensional absolute measuring system can explicitly be realized. The theoretical background, the experimental setup, the evaluation algorithm, and the results of measurement are discussed in detail.

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16

Chen, Guodong. "Solution of diffusion equation in axisymmetrical coordinates." Ohio : Ohio University, 1994. http://www.ohiolink.edu/etd/view.cgi?ohiou1176840295.

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17

Oshima, Satoshi, Rika Mochizuki, Reiner Lenz, and Jinhui Chao. "Color-Weakness Compensation using Riemann Normal Coordinates." Linköpings universitet, Medie- och Informationsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-86669.

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We introduce normal coordinates in Riemannspaces as a tool to construct color-weak compensation methods.We use them to compute color stimuli for a color weakobservers that result in the same color perception as theoriginal image presented to a color normal observer in the sensethat perceived color-differences are identical for both. Thecompensation is obtained through a color-difference-preservingmap, i.e. an isometry between the 3D color spaces of a colornormaland any given color-weak observer. This approach usesdiscrimination threshold data and is free from approximationerrors due to local l

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18

Murphy, Ailbhe. "Tower songs : Critical coordinates for collaborative practice." Thesis, Ulster University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.537601.

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This thesis has explored the possibilities within collaborative arts practice for creating an interdisciplinary form of evaluation to address the centrality and complexity of negotiation in collaborative practice. The navigational challenges for artists negotiating this field were considered in light of the critical debates within socially engaged arts practice (Kester, 2004 and 2005; Kwon 2002: Bishop, 2009, Lind 2004 and Doherty 2008) which tend to organise the field along a series of binary oppositions such as: process v product; aesthetics v ethics; participative v collaborative practice a

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19

CUSTODIO, LIS INGRID ROQUE LOPES. "EXTENSIONS OF BARYCENTRIC COORDINATES FOR MESH DEFORMATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2010. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=16491@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Dentro dos métodos deformação de objetos tridimensionais, os que usam poliedros de controle permitem interações rápidas e intuitivas, e assim ganharam bastante interesse nos últimos anos. Essas técnicas expressam os pontos do objeto a partir dos vértices do poliedro de controle, por exemplo usando coordenadas baricêntricas e suas extensões.Assim, ao deformar o poliedro de controle, obtém-se deformações correspondentes sobre o modelo recalculando cada ponto do objeto a partir das novas posições dos vértices de controle. Devido ao

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20

Ba, Demba Elimane. "Nonlinear transform coding with lossless polar coordinates." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37937.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (p. 51-52).<br>In conventional transform coding, the importance of preserving desirable quantization partition cell shapes prevents one from considering the use of a nonlinear change of variables. If no linear transformation of a given source would yield independent components, this means having to encode it at a rate higher than its entropy, i.e. suboptimally. This thesis proposes a new transform coding technique where the source samples are

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21

Hernández, Moreno Ricardo Alfonso. "Anti-de Sitter holography in diﬀerent coordinates /". São Paulo, 2013. http://hdl.handle.net/11449/108898.

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Orientador: Horatiu Stefan Nastase<br>Banca: Ion Vasile Vancea<br>Banca: Andrey Yuryevich Mikhaylov<br>Resumo: O objetivo deste trabalho é mostrar a importância da escolha do sistema de coordenadas e assinatura para descrever o espaço Anti-de Sitter na Correspondência AdS/CFT. Para fazer isto, mostraremos como calcular correlatores em diferentes coordenadas no lado gravitacional da correspondência. Em particular, apresentamos o procedimiento geral para encontrar o propagador bulk-fronteira para um campo escalar, de gauge e espinorial usando o método de Witten em coordenadas de Poincaré com ass

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22

Chen, Goudong. "Solution of diffusion equation in axisymmetrical coordinates." Ohio University / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1176840295.

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23

Suma, Christopher G. "Parallel Coordinates Diagram Implementation in 3D Geometry." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1542590859588961.

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24

Trigui, Aymen. "Natural neighbour coordinates on irregular staggered grids." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11730079.

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25

Cai, Liang Bear James E. "Coronin 1B coordinates actin dynamics in lamellipodia." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,2163.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.<br>Title from electronic title page (viewed Feb. 26, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Cell and Developmental Biology." Discipline: Cell and Developmental Biology; Department/School: Medicine.

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26

Zhou, Hong. "Visual clustering in parallel coordinates and graphs /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20ZHOU.

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27

Yao, Xueyang. "The Discrete 2D Fourier Transform In Polar Coordinates." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37656.

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The discrete Fourier transform in Cartesian coordinates has proved to be invaluable in many disciplines. However, less theory has been developed for functions that are best described in polar coordinates. In this thesis, a new discrete 2D-Fourier transform in polar coordinates is proposed and tested by numerical simulations. Guidelines for choosing sample size are developed. Furthermore, to be as useful as its Cartesian counterpart, improvements are made to reduce the computing time.

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28

Hernández, Moreno Ricardo Alfonso [UNESP]. "Anti-de Sitter holography in di?erent coordinates." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/108898.

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Made available in DSpace on 2014-08-27T14:36:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-03-15Bitstream added on 2014-08-27T15:57:04Z : No. of bitstreams: 1 000778154.pdf: 709298 bytes, checksum: 4e299e7ae9870aa72c05e3f3f6af3c66 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O objetivo deste trabalho é mostrar a importância da escolha do sistema de coordenadas e assinatura para descrever o espaço Anti-de Sitter na Correspondência AdS/CFT. Para fazer isto, mostraremos como calcular correlatores em diferentes coordenadas no lado gravitacional da c

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29

Gong, Shengjun, and 龔勝軍. "Linear coordinates, test elements, retracts and automorphic orbits." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40988065.

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30

Gillette, Andrew, and Alexander Rand. "INTERPOLATION ERROR ESTIMATES FOR HARMONIC COORDINATES ON POLYTOPES." EDP SCIENCES S A, 2016. http://hdl.handle.net/10150/621355.

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Interpolation error estimates in terms of geometric quality measures are established for harmonic coordinates on polytopes in two and three dimensions. First we derive interpolation error estimates over convex polygons that depend on the geometric quality of the triangles in the constrained Delaunay triangulation of the polygon. This characterization is sharp in the sense that families of polygons with poor quality triangles in their constrained Delaunay triangulations are shown to produce large error when interpolating a basic quadratic function. Non-convex polygons exhibit a similar limitati

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31

Gong, Shengjun. "Linear coordinates, test elements, retracts and automorphic orbits." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40988065.

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32

Habermas, Derek. "Compact Symmetric Spaces, Triangular Factorization, and Cayley Coordinates." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/195953.

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Let X be a simply connected, compact Riemannian symmetric space. We can represent X as the homogeneous space U/K, where U is a simply connected compact Lie group, and K is the fixed point set of an involution θ of U. Let G be the complexification of U. We consider the intersections of the image of the Cartan embedding Φ : U/K → U ⊂ G : uK → uu⁻ᶿ with the strata of the Birkhoff (or triangular, or LDU) decomposition G = ⫫(w∈W) ∑(G/w), ∑(G/w) = N⁻wHN⁺ relative to a θ-stable decomposition of the Lie algebra, g = n⁻ ⊕h ⊕ n⁺. For a generic element g in this intersection, g ∈ Φ(U/K) ∩ ∑(G/1), this yi

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33

Lam, Chi-ming, and 藍志明. "Algorithms to determine tame and wild coordinates of Z[x,y]." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29470560.

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34

Börjesson, Nils. "Transformations between Camera Images and Map Coordinates with Applications." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-3673.

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<p>The quality of cameras is currently increasing very fast meanwhile the price of them is decreasing. The possibilities of using a camera as a measurement and navigation instrument are thus getting bigger all the time. This thesis studies the transformation relations between a camera image and the scene in space that is projected to it. A theoretical derivation of the transform will be presented, and methods and algorithms for applications based on the transform will be developed.</p><p>The above mentioned transform is called the camera matrix, which contains information about the camera atti

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35

Ljungberg, Malin. "Handling of curvilinear coordinates in a PDE solver framework." Licentiate thesis, Uppsala universitet, Avdelningen för teknisk databehandling, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-86138.

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By the use of object-oriented analysis and design combined with variability modeling a highly flexible software model for the metrics handling functionality of a PDE solver framework was obtained. This new model was evaluated in terms of usability, particularly with respect to efficiency and flexibility. The efficiency of a pilot implementation is similar to, or even higher than that of a pre-existing application-specific reference code. With regards to flexibility it is shown that the new software model performs well for a set of four change scenarios selected by an expert user group.

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36

區榮海 and Wing-hoi Au. "Numerical generation of body-fitted coordinates by multigrid method." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1990. http://hub.hku.hk/bib/B31209555.

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37

Zhou, You M. Eng Massachusetts Institute of Technology. "Computing network coordinates in the presence of Byzantine faults." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46365.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 57-60).<br>Network coordinate systems allow for efficient construction of large-scale distributed systems on the Internet. Coordinates provide locality information in a compact way, without requiring each node to contact every potential neighbor; distances between two nodes' coordinates re

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38

Chen, Justin Ph D. Massachusetts Institute of Technology. "The extreme anterior domain coordinates brain and craniofacial development." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117870.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Biology, 2018.<br>Cataloged from PDF version of thesis. Vita.<br>Includes bibliographical references.<br>The head is one of the most complex and important parts of the body. The shape of the head is largely determined by the size of the brain and morphology of the facial skeleton. These tissues consist of different cell types and undergo distinct developmental programs. However, development of the brain and various parts of the face may be coordinated so that tissues form in the correct order and scale to each other appropria

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39

Motoike, Toshiyuki, Jeffrey M. Long, Hirokazu Tanaka, Christopher M. Sinton, Amber Skach, S. Clay Williams, Robert E. Hammer, Takeshi Sakurai, and Masashi Yanagisawa. "Mesolimbic neuropeptide W coordinates stress responses under novel environments." NATL ACAD SCIENCES, 2016. http://hdl.handle.net/10150/616999.

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Neuropeptide B (NPB) and neuropeptide W(NPW) are endogenous neuropeptide ligands for the G protein-coupled receptors NPBWR1 and NPBWR2. Here we report that the majority of NPW neurons in the mesolimbic region possess tyrosine hydroxylase immunoreactivity, indicating that a small subset of dopaminergic neurons coexpress NPW. These NPW-containing neurons densely and exclusively innervate two limbic system nuclei in adult mouse brain: the lateral bed nucleus of the stria terminalis and the lateral part of the central amygdala nucleus (CeAL). In the CeAL of wild-type mice, restraint stress resulte

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40

Sanghvi, Saagar K. "Effect of Rat Strain Stereotactic Coordinates on Infarct Volume." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1364484571.

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41

Maire, Steven M. "Inverted Edwards Coordinates (Maire Model of an Elliptic Curve)." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1396888557.

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42

Chung, Peter Kai-Lun. "A comprehensive parallel coordinates system for air pollution analysis /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CSED%202008%20CHUNG.

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Au, Wing-hoi. "Numerical generation of body-fitted coordinates by multigrid method /." [Hong Kong] : University of Hong Kong, 1990. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1296637X.

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44

Ernst, Matthias [Verfasser], and Gerhard [Akademischer Betreuer] Stock. "Finding reaction coordinates for protein folding and functional motion." Freiburg : Universität, 2018. http://d-nb.info/1224416481/34.

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45

Duan, Jingxian. "Cell-wide web of cytoplasmic nanocourses coordinates calcium signalling." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31133.

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Ca2+ signals determine smooth muscle contraction and the switch from a contractile to a migratory-proliferative phenotype(s), which requires changes in gene expression. However, the mechanism by which different Ca2+ signals are selective for these processes is enigmatic. In the thesis, I built on the “panjunctional sarcoplasmic reticulum” hypothesis, and described the evidence in support of the view that a variety of Ca2+ pumps and release channels, with different kinetics and affinities for Ca2+, are strategically positioned within the cytoplasmic nanocourses of pulmonary arterial smooth musc

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46

Widman, Brooke Ashley. "Comparing feature type and coordinates in aphasia naming therapy." Thesis, Boston University, 2013. https://hdl.handle.net/2144/12889.

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Thesis (M.S.)--Boston University PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>Although Semantic Feature Analysis has long been utilized as an effective treatment for aphasic patients suffering anomia, little research has evaluated what types of features are best equipped for improving pat

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47

Maspero, A. "BIRKHOFF COORDINATES OF INTEGRABLE HAMILTONIAN SYSTEMS IN ASYMPTOTIC REGIMES." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/246796.

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In this thesis we investigate two examples of infinite dimensional integrable Hamiltonian systems in $1$-space dimension: the Toda chain with periodic boundary conditions and large number of particles, and the Korteweg-de Vries (KdV) equation on $\R$. In the first part of the thesis we study the Birkhoff coordinates (Cartesian action angle coordinates) of the Toda lattice with periodic boundary condition in the limit where the number $N$ of the particles tends to infinity. We prove that the transformation introducing such coordinates maps analytically a complex ball of radius $R/N^\alpha$

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48

Jedrecy, Alexandre. "Study of phase transformation of matter through topological coordinates." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS386.

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Au cours de cette thèse deux problèmes majeurs pour l’eau ont été étudiés : la transition liquide-liquide et la nucléation homogène de la glace. Pour cela nous avons utilisé l'état de l'art des méthodes d’échantillonnage amélioré, couplé avec une nouvelle variable qui contient les informations topologiques pertinentes des systèmes étudiés, le PIV. En calculant des profils d'énergie libre pour différentes conditions de pression et de température, nous avons pu montrer rigoureusement l’absence de barrière d’énergie libre et de second point critique pour la transition liquide-liquide avec le modè

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49

Boonserm, Petarpa. "Some exact solutions in general relativity : a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Master of Science in Mathematics /." ResearchArchive@Victoria e-Thesis, 2005. http://hdl.handle.net/10063/16.

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50

Voss, Henry Herbert. "Model reference adaptive control of a manipulator in Cartesian coordinates." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26340.

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Robot performance is limited due to the form of the joint controllers. A model reference adaptive control scheme is proposed in which the reference model is in Cartesian coordinates. The form of the conventional joint controller is retained but the gains are adjusted to make the response similar to the reference model. By use of computer simulation the response of a manipulator to setpoint changes is examined for both the conventional and proposed control schemes. Improvements in path error for a straight line trajectory between starting and ending positions in world coordinates is observed wi

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