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Dissertations / Theses on the topic 'Structure fine de l’exciton'

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1

Prin, Elise. "Propriétés optiques fondamentales de nanocristaux de semi-conducteurs individuels aux températures cryogéniques." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0182.

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Les nanocristaux de semi-conducteurs présentent des propriétés optiques et électroniques remarquables en raison du confinement quantique de leurs porteurs de charge, ce qui les rend avantageux pour diverses applications en optoélectronique, dans les dispositifs émetteurs de lumière et dans les technologies basées sur le spin. La compréhension de la physique de l’exciton de bord de bande, dont la recombinaison est à l’origine de leur photoluminescence, est cruciale pour le développement de ces applications. Cette thèse porte sur l’étude expérimentale des propriétés optiques des nanocristaux de
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2

Smiciklas, Marc. "A Determination of the Fine Structure Constant Using Precision Measurements of Helium Fine Structure." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc31547/.

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Spectroscopic measurements of the helium atom are performed to high precision using an atomic beam apparatus and electro-optic laser techniques. These measurements, in addition to serving as a test of helium theory, also provide a new determination of the fine structure constant α. An apparatus was designed and built to overcome limitations encountered in a previous experiment. Not only did this allow an improved level of precision but also enabled new consistency checks, including an extremely useful measurement in 3He. I discuss the details of the experimental setup along with the major
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3

Johnson, Colin Terence. "Fine structure transitions in astrophysics." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317096.

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4

Turnbull, Alexander James. "Fine structure in elliptical galaxies." Thesis, University of Hertfordshire, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323441.

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5

Jankowski, Charles Robert. "Fine structure features for speaker identification." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11012.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.<br>Includes bibliographical references (p. 193-198).<br>by Charles Robert Jankowski, Jr.<br>Ph.D.
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6

Tovena, Lucia M. "The fine structure of polarity sensitivity /." New York ; London : Garland, 1998. http://catalogue.bnf.fr/ark:/12148/cb37081866c.

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7

Givors, Fabien. "Vers une structure fine des calculabilités." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20160/document.

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La calculabilité est centrée autour de la notion de fonction calculable telle que définie par Church, Kleene, Rosser et Turing au siècle dernier. D'abord focalisée sur les nombres entiers, la calculabilité a été généralisée aux ensembles, notamment par le biais de la théorie axiomatique des ensembles de Kripke-Platek. Dans cette thèse, nous définissons une notion générale de calculabilité, les sous-calculabilités, dont les axiomes sont satisfaits à la fois par de nombreux fragments récursifs de la calculabilité classique, mais également par des calculabilités d'ordre supérieur sur les ensemble
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8

ISHIHARA, TAKASHI, and YUKIO KANEDA. "Fine-scale structure of thin vortical layers." Cambridge University Press, 1998. http://hdl.handle.net/2237/10287.

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9

Macindoe, Owen. "Investigating the fine grained structure of networks." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60103.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis.<br>Includes bibliographical references (p. 107-109).<br>In this thesis I explore a novel representation for characterizing a graph's fine grained structure. The key idea is that this structure can be represented as a distribution of the structural features of subgraphs. I intr
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10

Kane, Frances. "The fine structure of the Irish NP." Thesis, Ulster University, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675469.

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This thesis is a structural analysis of the DP in Irish. The thesis is based on analysis of a number of different types of noun phrases and a consideration of the observed patterns in relation to other languages and syntactic theory in general. The proposal accounts for the typical data that has been analysed previously in the literature as well as novel data not yet accounted for within existing analyses. As well as providing a full structural account of the Irish NP, the findings of this thesis provide evidence in Support of the universal existence of a number of functional projections, whic
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11

Hitchen, Gregory James. "Measurement and analysis of LEED fine structure." Thesis, Hitchen, Gregory James (1990) Measurement and analysis of LEED fine structure. PhD thesis, Murdoch University, 1990. https://researchrepository.murdoch.edu.au/id/eprint/51661/.

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LEED fine structure features arise from an interference between the measured beam and a pre-emergent beam internally reflected at the surface potential barrier. Such features are observed at very low energies (typically 0-40eV) and usually consist of a rydberg-like series of peaks converging on the emergence energy of the pre-emergent beam. These features provide a means of determining the shape of the surface potential barrier of a metal. It is possible to calculate theoretical fine structure spectra by using a barrier model with adjustable parameters. These parameters can be altered to g
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12

Giemza, Joanna. "Fine-scale genetic population structure in France." Thesis, Nantes, 2019. http://www.theses.fr/2019NANT1007/document.

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La structure génétique à fine échelle des populations humaines est intéressante pour deux raisons principales : 1) elle reflète des événements historiques et démographiques, 2) elle informe la recherche sur les études d’association de maladies. Cette thèse a pour objectif de procéder à une analyse approfondie de la structure génétique de la population de France métropolitaine dans un premier temps, en de façon plus détaillée de la population du nord-ouest de la France, et de mettre en lumière les événements historiques, démographiques et culturels qui l’ont façonnés, en tirant parti de trois j
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13

Robinson, Kate. "The Integrity of the Structure." Thesis, Mills College, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1551689.

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<p> The Integrity of the Structure is an artists' book installation made of mono-printed and hand-worked masa paper framed in wood to create a series of screens (one with a video projection) that construct a space for the reader/audience to walk through. The text and video on the screens, as well as the reader/audience themselves moving through the space constitute the content of the book. This paper is a creative/critical hybrid reflection on the installation and its concepts.</p>
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14

Behrens, Anna-Janina. "Fine structure of the HIV-1 glycan shield." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:3cec0ef7-c305-411e-a76b-125d5e7e9954.

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The HIV-1 envelope glycoprotein trimer (Env) is covered by an extensive array of glycans that shield it from immune surveillance. The high density of glycans on the trimer surface imposes steric constraints that limit the actions of glycan processing enzymes, such that multiple under-processed structures remain on specific locations. These oligomannose-type glycans are recognized by broadly neutralizing antibodies (bNAbs) that are not thwarted by the glycan shield but, perhaps paradoxically, target it. In multiple studies, bNAbs have been shown to be capable of providing passive protection fro
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15

Reichelt, Uwe J. M. "The physical meaning of the fine structure constants." Uwe J. M. Reichelt, 2021. https://slub.qucosa.de/id/qucosa%3A75202.

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The article solves the riddle of the fine structure constants with the help of the Planck units, derives its physical meaning and shows the consequences.:Abstract Introduction What is the fine structure constant? Consequence from the existence of the fine structure constant.
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16

Poiarkova, Anna V. "X-ray absorption fine structure Debye-Waller factors /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/9731.

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17

Douin, Joël. "Structure fine des dislocations et plasticité dans NiAl." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37604626p.

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18

Evans, Jason L. "On the variability of the fine structure constant /." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd496.pdf.

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19

Collier, David Clifford Robert. "The fine structure of orbits in dynamical systems." Thesis, University of Manchester, 2008. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489633.

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20

Evans, Jason Lott. "On the Variability of the Fine Structure Constant." BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/144.

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This thesis addresses the issue of the time variability of the fine structure constant, alpha. Recent claims of a varying alpha are set against the established standards of quantum electrodynamical theory and experiments. A study of the feasibility of extracting data on the time dependence of alpha using particles in Penning traps is compared to the results obtained by existing methods, including those using astrophysical data and those obtained in atomic clock experiments. Suggestions are made on the nature of trapped particles and the trapping fields.
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21

Fantin, Daniele S. M. "Ultra-fine dark matter structure in the solar neighbourhood." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/11877/.

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Dark matter plays a fundamental role in theories of the formation and evolution of galaxies. Thus every attempt to model galaxy formation and evolution has to take into consideration the presence of dark halos. Moreover, mergers and accretion appear to be fundamental driving mechanisms in determining the present day properties of galaxies. The aim of this thesis is to study the ultra-fine distribution of dark matter in the Solar neighbourhood, and to investigate the implications for the current and next generation of dark matter directional detectors. For this purpose we develop a model for ha
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22

MACHKOV, IGOR. "Structure fine des excitons dans les superreseaux gaas/alas." Paris 7, 1996. http://www.theses.fr/1996PA077094.

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La structure fine des excitons dans les superreseaux gaas/alas est etudiee par battements quantiques, resonance magnetique detectee optiquement (odmr) et anticroisement de niveaux. 1) dans les superreseaux gaas/alas de type-2 l'exciton est localise aux interfaces par les defauts d'epaisseur des couches et la degenerescence des etats radiatifs d'exciton est levee. En excitant en impulsions une superposition coherente de ces etats, on observe des oscillations d'intensite de luminescence au cours du temps (battements quantiques). On obtient la difference d'energie des etats, le temps de vie et le
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23

Naughton, David Vincent. "On the fine structure of dynamically-defined invariant graphs." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/on-the-fine-structure-of-dynamicallydefined-invariant-graphs(0e81b14b-af68-4433-a983-f98a7b8c5d86).html.

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24

Sutter, Jon. "Structure and Repetition." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1834.

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This work is the result of an exploration into the relationship of form and pattern. Its inspiration began as an experiment where certain two dimensional graphical patterns were interpreted as three dimensional elements in a lattice-like assembly. The resulting compositions are built entirely of MDF, and each piece is made from multiple copies of one or two identically shaped parts that are joined with shallow grooves. Some of the pieces resemble Asian architectural lattices as well as the scientific models of molecules in crystals. Often, the flat components seem to undulate in space or twist
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25

Buades, Bárbara. "Attosecond X-ray absorption fine-structure spectroscopy in condensed matter." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/663092.

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Attoscience aims to study electron dynamics in matter with unprecedented temporal resolution by using the shortest pulses generated on Earth. Currently, such resolution is only provided by sources that deliver attosecond pulses based on the high-harmonic generation (HHG) process. In this thesis we make use of the demonstration of the generation of isolated attosecond pulses in the soft X-ray (SXR) regime covering the entire water window (284 eV to 543 eV) with pulse durations shorter than 300 as. Such a source is used to explore its own development, the spectroscopic capabilities of the pulses
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26

Mauermann, Manfred Dieter. "Fine structure in distortion product otoacoustic emissions and auditory perception." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972885544.

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27

Hankemeier, Sebastian [Verfasser]. "The magnetic fine structure of thin-film elements / Sebastian Hankemeier." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2011. http://d-nb.info/1010757768/34.

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28

Durno, W. Evan. "Precise correlation and metagenomic binning uncovers fine microbial community structure." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62360.

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Bacteria and Archaea represent the invisible majority of living things on Earth with an estimated numerical abundance exceeding 10^30 cells. This estimate surpasses the number of grains of sand on Earth and stars in the known universe. Interdependent microbial communities drive fluxes of matter and energy underlying biogeochemical processes, and provide essential ecosystem functions and services that help create the operating conditions for life. Despite their abundance and functional imperative, the vast majority of microorganisms remain uncultivated in laboratory settings, and therefore rema
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29

Pierseaux, Yves. "La structure fine de la théorie de la relativité restreinte." Doctoral thesis, Universite Libre de Bruxelles, 1998. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212021.

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30

Henriques, Vasco M. J. "Three-dimensional mapping of fine structure in the solar atmosphere." Doctoral thesis, Stockholms universitet, Institutionen för astronomi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-86798.

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The effects on image formation through a tilted interference filter in a converging beam are investigated and an adequate compensation procedure is established. A method that compensates for small-scale seeing distortions is also developed with the aim of co-aligning non-simultaneous solar images from different passbands. These techniques are applied to data acquired with a narrow tiltable filter at the Swedish 1-meter Solar Telescope. Tilting provides a way to scan the wing of the Ca II H line. The resulting images are used to map the temperature stratification and vertical temperature gradie
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31

Mota, David Fonseca. "Variations of the fine structure constant in space and time." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615756.

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32

Crapper, M. D. "X-ray absorption fine structure of adsorbates on metal surfaces." Thesis, University of Warwick, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377093.

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33

Young, Robert James. "Controlling the fine structure splitting in single InAs quantum dots." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613860.

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34

Bui, Thi Hanh [Verfasser]. "The excitonic fine structure of colloidal nanocrystals / Thi Hanh Bui." Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2020. http://d-nb.info/123055517X/34.

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35

Shorrosh, Raed Saed. "An x-ray absorption fine structure study of semiconductor nanoclusters." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/30867.

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36

Ilango, Kandan. "Phlebotomine sandfly reproduction : fine structure and function of the spermathecae." Thesis, London School of Hygiene and Tropical Medicine (University of London), 1995. http://researchonline.lshtm.ac.uk/1416608/.

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In contrast to most blood sucking flies, the structure of the spermathecae in phlebotomine sandflies exhibits extraordinary diversity. The objective of this study was to investigate the fine structure of the spermathecae in relation to mating of phlebotomine sandflies. Light microscopy and electron (scanning and transmission) microscopy were used to examine species of four representative subgenera from the Old World Sergentomyia (Parrotomyia) babu, Phlebotomus (Euphlebotomus) argentipes, P. (Phlebotomus) papatasi and P. (Larroussius) langeroni. The spermathecae of P. papatasi is composed of a
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37

Douin, Joël. "Structure fine des dislocations et plasticité dans Ni(3)Ai." Poitiers, 1987. http://www.theses.fr/1987POIT2313.

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Etude detaillee de l'evolution de la structure fine des dislocations dans une large gamme de temperature autour du pic de limite elastique (600-700c). Analyse cristallographique de la structure ordonnee l1::(2) et des defauts plans de cette structure. Presentation, a partir de cette analyse, des resultats des simulations atomiques de paroi d'antiphase. Calcul de forme et d'energie de dislocations en elasticite anisotrope. Analyse du mecanisme de formation des defauts d'empilement. Etude, en fonction de la temperature d'essai, de la structure fine des dislocations. Influence d'une variation de
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38

DeRose, Guy Arthur. "X-ray absorption fine structure strain determination in thin films." Case Western Reserve University School of Graduate Studies / OhioLINK, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=case1060005230.

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39

Pierseaux, Yves. "La structure fine de la théorie de la relativité restreinte /." Paris ; Montréal (Québec) : l'Harmattan, 1999. http://catalogue.bnf.fr/ark:/12148/cb37050978s.

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40

Wellings, John Victor. "Fine structure and mechanical design of cylindrical tension-transmitting cytoskeletons." Thesis, University of St Andrews, 1985. http://hdl.handle.net/10023/14013.

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All cells contain cytoskeletal components which perform static 'spatial organizing' and dynamic 'motile' functions. The studies described in this thesis concern two types of cytoskeletal component of universal biological importance: microtubules and microfilaments, and various other structures which are associated with them. The general properties of microtubules and microfilaments and of other cytoskeletal components are reviewed in the introduction. Examples of the functions they perform in various systems are described, with emphasis on Protozoa and metazoan morphogenetic systems. The cilia
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41

Danilović, Sanja. "Magnetic fine structure in the solar photosphere observations and MHD simulations." Berlin Uni-Ed, 2009. http://d-nb.info/1002469767/04.

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42

Ng, Sui-chung. "Variation of the fine structure constant in 5D Kaluza-klein theory." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31993175.

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43

Kleindienst, Thomas. "The fine scale structure of synaptic inputs in developing hippocampal neurons." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-126626.

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44

Willinger, Marc-Georg. "Investigation of the oxygen K-edge fine structure in vanadium oxides /." Online version, 2001. http://bibpurl.oclc.org/web/20813.

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45

Rottenfußer, Günter [Verfasser]. "On the dynamical fine structure of entire transcendental functions / Günter Rottenfußer." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2008. http://d-nb.info/1034768298/34.

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46

Vaumousse, David. "An atom probe study of fine scale structure in A1MgSi(Cu)." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401025.

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47

Ng, Sui-chung, and 吳瑞聰. "Variation of the fine structure constant in 5D Kaluza-klein theory." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B31993175.

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48

McKerr, G. "The fine structure and physiology of a trypanorhynch tapeworm Grillotia erinaceus." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233293.

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49

Jackson, Helen Mary. "The role of temporal fine structure in pitch and speech perception." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608187.

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50

Yu, Jung-Suk. "Essays on Fine Structure of Asset Returns, Jumps, and Stochastic Volatility." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/431.

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There has been an on-going debate about choices of the most suitable model amongst a variety of model specifications and parameterizations. The first dissertation essay investigates whether asymmetric leptokurtic return distributions such as Hansen's (1994) skewed tdistribution combined with GARCH specifications can outperform mixed GARCH-jump models such as Maheu and McCurdy's (2004) GARJI model incorporating the autoregressive conditional jump intensity parameterization in the discrete-time framework. I find that the more parsimonious GJR-HT model is superior to mixed GARCH-jump models. Like
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