Tesis: "Interet compose"

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Rey, Nadège. "Synthèse de silices hybrides méso-structurées par auto-assemblage : vers des applications en catalyse". Thesis, Montpellier, Ecole nationale supérieure de chimie, 2019. https://theses.enscm.fr/interne/ENSCM_2019_REY.pdf.

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Les matériaux hybrides à base de silice ont été explorés pour de nombreuses applications allant des micro-lentilles dans le domaine de l’optique à l’encapsulation de médicaments dans celui de la santé. En ce qui concerne le domaine de la catalyse, l’incorporation de cations métalliques dans des réseaux de silice organisés est essentielle pour la conception de catalyseurs supportés. Les matrices siliciques présentent des propriétés mécaniques, une stabilité thermique et une porosité ajustables. Dans la littérature, ces matrices prennent la forme de bâtonnets, d’étoiles, d’haltères, de feuillets ou de réseaux polymériques et sont catégorisées en architectures 2D ou 3D. En ce qui concerne la formation de ces architectures 2D et 3D, différentes familles ont été étudiées comme les silsesquioxanes pontants, les silsesquioxanes polyédriques (POSS) et les silices lamellaires.La silice lamellaire est utilisée aussi bien comme gabarit qu’en tant de composant à part entière pour créer des matériaux fonctionnels. Les feuillets cristallins de silice sont facilement modifiés par l’intercalation de molécules ou d’ions dans l’espace inter-lamellaire. Des greffages covalents d’organosilanes peuvent aussi être faits par silylation des groupements Si-O-/Si-OH présents à la surface des feuillets. Les silsesquioxanes polyédriques sont des composés de type cage et de formule (RSiO3/2)n, R étant un groupement organique. Les cages T8 sont le plus communs et lorsqu’elles sont octa-substitués, peuvent être utilisées comme nœuds pour l’auto-assemblage de POSS polymériques connectés les uns aux autres. Lorsqu’ils sont mono-substitués, deux scénarios sont possibles. Soit le groupe fonctionnel substitué est fonctionnalisé, soit la cage est connectée à un autre POSS et on forme ainsi des objets de type haltère.Dans ce travail, le but est de synthétiser de nouveaux matériaux hybrides fonctionnels qui auront une architecture 2D ou 3D originale.Les architectures 2D structurées auto-assemblées sont fabriquées à partir de silices lamellaires et de liens moléculaires organosilylés via des réactions d’hydrolyse–condensation et seront par la suite utilisés pour des réactions de complexation et de catalyse. Dans cette optique, il est nécessaire de synthétiser de nouveaux liens moléculaires fonctionnels. Inspirées des composés di-urées, les urées-thiourées sont des molécules flexibles qui combinent quatre fonctionnalités clés : (1) la fonction silane sert de point de fixation sur la silice lamellaire, (2) la fonction urée promeut la structuration lors de l’auto-assemblage des feuillets grâce aux liaisons H, (3) la fonction thiourée devrait servir principalement à la coordination des cations métalliques et (4) dans le cas des précurseurs monosilylés les groupements terminaux aryles (interactions de systèmes -conjugués) ou les groupements terminaux alkyles (interactions de type Van der Waals) participeront à l’auto-organisation des piliers et à l’ajustement de l’espace inter-feuillets.Les architectures 3D auto-assemblées sont synthétisées à partir de POSS et de liens moléculaires organiques bi-silylés. Ici, la version bi-silylée des dérivés urées-thiourées sera utilisée ainsi que des composés bi-silylés de type malonamide. Les différents malonamides développés permettront de jouer sur la flexibilité de la structure et sur l’accessibilité aux métaux pour la complexation. Dans une première étape, l’investigation s’est portée sur la faisabilité d’un système modèle de type haltère via différentes voies de synthèse. Cette étape est nécessaire pour mieux comprendre les arrangements possibles des différentes composantes dans les matériaux finis. Ces matériaux seront synthétisés par fonctionnalisation de POSS possédant des fonctions hydrures, Si-H, par les liens moléculaires présentés précédemment
Hybrid Silica-based materials have been investigated for many applications, ranging from micro-lenses for optics to drug encapsulation for health. In particular, the incorporation of metal cations in organized silica-based network is essential to the design of supported catalysts. Si-based matrices exhibit tunable mechanical properties, thermal stability and porosity. These matrices can be prepared with different shapes that play a role in their applications. Rods, stars, dumbbell, layer or polymeric network, that can be categorized in 2D or 3D architectures, are among the shapes encountered in the literature. For the construction of 2D and 3D architectures, several families are studied, such as bridged silsesquioxanes, polyhedral oligomeric silsesquioxanes (POSS) and lamellar silica.Lamellar silica is used as scaffolds or 2D building blocks to create functional materials. Crystalline layered silicates are easily modified by the intercalation of guest molecules and ions in the interlayer. Covalent modification is achieved by silylation of the interlayer Si–O- / Si–OH groups with organosilanes. Moreover POSS consists of a cage-like structure and formula (RSiO3/2)n, R being an organic group. T8 structure is the most common one which when it is octa-substituted can be used as a node in a polymer-like self-assembly by connection to other POSS. In the case of a mono-substituted cage, two scenarios are available: functionalization of the substituted corner or synthesis of dumbbell-like object formed by grafting of another POSS.In this work, the aim is to provide new functional hybrid materials involving original 2D and 3D architectures.2D self-structure assemblies, made of lamellar silica and silylated organic linkers, will be used for complexation reactions and catalysis For this purpose, there is a need for new functional linkers. Here, we present the original synthesis of linkers for the assembly of the 2D structures. Inspired by previously reported bis-urea compounds, we designed and prepared bi-functional urea-thiourea monosilylated linkers. The originality of these flexible molecules comes from the combination of four key sites allowing interactions or complexation: (i) the silyl moiety will serve as a single grafting anchor to the lamellar silica, (ii) the urea moiety will promote order in the self-assembled layer via H-bonding, (iii) the thiourea moiety will mainly serve for the coordination of metallic cations and (iv) in the case of the monosilylated precursors, the terminal functional R group will offer the possibility of self-organization of the pillars within the layer. Hence long alkyl chains are likely to interact through Van der Waals interactions and to tune the interlayer distance and thus the size of the cations possibly hosted within the layers while aryl R groups will enable the self-assembly thanks to the-conjugated system.3D self-structure assemblies will be synthesized from POSS and bis-silylated organic linkers. We used a bis-silylated version of the urea-thiourea compound as well as various bis-silylated malonamide compounds. The panel of malonamide compounds will allow to tune the flexibility of the final structure offering more or less accessibility for the metal complexation in the system. Prior to the materials synthesis, we investigated the feasibility of various dumbbell systems as models for the future studies and for a better understanding of the possible arrangement of these units within the final corresponding materials. We also demonstrate the formation of polymeric-like self-assembled hybrid silica by using Si-H functionalized POSS/POS connected with the same bridging units

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Antony, Hervé. "Etude éléctrochimique des composés du fer : Apport à la compréhension des processus environnementaux". Evry-Val d'Essonne, 2006. http://www.biblio.univ-evry.fr/theses/2006/Interne/2006EVRY0001.pdf.

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Ce travail est consacré à l'étude électrochimique des composés du fer et vise à apporter une meilleure description de ceux-ci et de leurs mécanismes de transformation rédox. Des synthèses, nouvelles ou transposées, de films minces ou de poudres, sont présentées. La composition des rouilles vertes, les conditions de formation, la nature et la stabilité de leurs précurseurs Fe(II) solubles ont été étudiées, ainsi que leurs transformations oxydante ou réductrice, lesquelles mettent en jeu des mécanismes à l'état solide de déprotonation/protonation ou via la solution. L'étude électrochimique de composés ferriques a permis d'établir un classement de "réactivité vis-à-vis de la réduction". Une étude plus détaillée de la lépidocrocite a permis d'en établir le mécanisme de réduction. Une application à l'étude de couches de corrosion atmosphérique a démontré une corrélation de cette réactivité avec l'age
This work, devoted to the electrochemical study of iron compounds, aims at better describing their features and redox transformation mechanisms. New or transposed synthesis methods of thin films or powders are exposed. The composition of green rusts, their formation conditions and the nature and stability of their soluble Fe(II) precursors were studied, as well as their oxidation and reduction, which involve two pathways, either solid-state transformation associated to protonation/deprotonation or reaction via solution. The electrochemical study of solid ferric compounds allowed us to position them on a “reactivity in reduction” scale. A more detailed study of lepidocrocite was performed to establish its reduction mechanism. Results were used in a study of atmospheric corrosion layers and a reactivity / age correlation could be demonstrated

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BARBOSA, MONTEIRO JULIETA. "Utilisation d'esterases et de lipases dans l'obtention de composes presentant un interet en chimie fine". Paris 6, 2000. http://www.theses.fr/2000PA066028.

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Dans ce travail, des enzymes hydrolytiques comme des esterases et des lipases ont ete utilisees aussi bien pour faire des reactions d'hydrolyse enantioselectives de composes pro-chiraux que pour faire des reactions d'esterification regioselectives du glycerol, en milieu organique. L'hemihydrolyse des diesters, hydroxy-3-glutarate de diethyle et hydroxy-3-glutarate d'ethyle et t-butyle, par une enzyme industrielle, l'esterase 30. 000, en systeme biphasique, conduit a la synthese enantioselective des respectfs acides, le (s)(+)-hydroxy-3-glutarate d'ethyle et le (r)()-hydroxy-3-glutarate de t-butyle, en grande quantite et avec un bon rendement. Dans les memes conditions, l'hydrolyse selective du methyl-2-cyclopropane dicarboxylate de diethyle, catalysee par deux enzymes, esterase 30. 000 et ple, donne les acides monocarboxyliques optiquement actifs, (1r, 2s)(+) et (1s, 2r)() avec un bon rendement. Ces isomeres sont de precurseurs chiraux des acides amines (1s, 2s)(+) and (1r, 2r)()-1-amino-2-methylcyclopropanecarboxylique, me-acc (norcoronamic acid), respectivement. Ces amino acides presentent activite biologique et sont introduits dans des sequences peptidiques afin d'imposer des contraintes conformationnelles. Une methode enzymatique d'obtention du 1(3) monolaurate-rac-glycerol, un importante agent emulsionnant d'interet alimentaire, en utilisant une lipase regioselective commerciale immobilisee, lipozyme im, a ete aussi proposee dans ce travail. En vue de resoudre le probleme de solubilite du glycerol dans le milieux hydrophobe, un melange de n-hexane / t-butanol (1:1, vol/vol) a ete utilise. Les deux substrats, glycerol et acide laurique sont soluble dans ce milieux, en conduisant a un systeme monophasique. Ce systeme reactionnel permet de travailler en continu. De facon a mener l'esterification du glycerol de maniere selective, un rapport eleve de glycerol sur l'acide gras a ete utilise.

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Dorwart, Jennifer. "Strategies for Real Estate Professionals to Compete With Internet Organizations". ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2810.

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There has been slow growth among traditional residential real estate organization managers to communicate among the real estate industry successful e-commerce strategies. Grounded in diffusion of innovation theory, the purpose of this descriptive case study was to explore strategies traditional residential real estate managers use to compete with e-commerce real estate managers. The study population comprised traditional real estate office managers in western Nebraska who had at least 5 years' experience in developing successful e-commerce strategies and had sold a home in the past 5 years. I conducted a thematic analysis on the data collected via semistructured interviews and company documents. Four themes emerged from the analysis, including establishing and maintaining multiple e-commerce websites, regularly monitoring websites, establishing a visible presence on multiple e-commerce websites, and preparation to evolve as technology evolves. The study's implications for positive social change include the potential for traditional residential real estate organization managers' to develop and use new and useful strategies for overcoming barriers and effectively competing with e-commerce real estate organizations to remain competitive in the local economy through job creation, innovation, and competitiveness to sustain their businesses.

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CANEL-STERENZY, SYLVIE. "Isolement et identification de mycobacteries dans des composts d'ordures menageres et de boues de stations d'epuration : interet pour le suivi sanitaire". Aix-Marseille 2, 1989. http://www.theses.fr/1989AIX22975.

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Aubert, Thierry. "Réactivité d'iminophosphoranes vis-à-vis de composés dicarbonylés : interet pour la synthèse de divers hétérocycles azotés". Dijon, 1988. http://www.theses.fr/1988DIJOS014.

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Les agents dicarbonylés envisagés sont le phtalaldéhyde et divers dichlorures d'acyle; des voies de synthèse d'isoquinoléines acylées en 3 et d'azépinones sont ainsi proposées. De plus, l'accès rapide à des systèmes azépiniques permet la préparation de nouveaux isostères bis-hétérocycliques de la dibenzo (b, f) azépine: dithiéno- ou dipyrazolo (b,f) azépines

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Ahronian, Céline Béjoint Henri. "Les noms composés anglais, français et espagnols du domaine d'Internet traduction des composés anglais en français et en espagnol /". Lyon : Université Lumière Lyon 2, 2005. http://demeter.univ-lyon2.fr:8080/sdx/theses/lyon2/2005/ahronian_c.

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Mayoh, Lyndel Elizabeth. "Synchronous Internet Therapy for Panic Disorder: How Does it Compare to Face-to-face?" University of Sydney. Science. School of Psychology, 2006. http://hdl.handle.net/2123/1603.

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Master of Science
The current study aimed to test the efficacy of individual, synchronous Internet Therapy for panic disorder compared to traditional face-to-face therapy. Thirty participants diagnosed with panic disorder were randomly allocated to either Internet Therapy or face-to-face therapy, and received a manualised cognitive-behavioural treatment program. When analysed separately, results indicated that face-to-face treatment significantly reduced panic symptomatology overall, however significant gains were not shown for the Internet Therapy condition. However, a direct comparison of the two active treatments failed to show significant differences, as measured by a Multivariate Analysis of Variance (MANOVA) on pre- and post-treatment variables. Internet Therapy did, however, significantly reduce certain symptoms of panic disorder, indicating that Internet Therapy may be useful as an adjunctive treatment to face-to-face therapy. Intention-to-treat analyses suggested that face-to-face treatment may be more effective than Internet Therapy for treating panic disorder. Additionally, there were no differences between treatment conditions in levels of working alliance, indicating that among those who stay in treatment, working alliance can be established online at a similar level to that of face-to-face therapy. However a high number of dropouts in the Internet Therapy condition warranted consideration. A thorough explanation of the results is offered in addition to recommendations for the future directions of the research and clinical implementation of Internet Therapy.

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Pinto, Débora Duarte. "O composto mercadológico para web (modelo 4S): um estudo de caso em uma instituição financeira brasileira". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/96/96132/tde-05022007-173243/.

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O comércio eletrônico tem expandido sua área de aplicação em indústrias como a de serviços bancários e, especialmente, tem gerado novas oportunidades de negócios e possibilitado a presença das empresas em novos mercados. Esse fenômeno motivou a necessidade do desenvolvimento e adaptação de ferramentas para analisar essa nova realidade. Com o propósito de fazer uma análise crítica do composto mercadológico para Web (Modelo 4S), realizou-se um estudo de caso exploratório em uma instituição financeira brasileira que possui um site de comércio eletrônico e para proporcionar a aplicação desse modelo foi desenvolvido um instrumento de pesquisa para analisar esse comércio eletrônico sob a ótica do Modelo 4S. O estudo de caso revelou que a instituição financeira refletiu sobre os principais aspectos estratégicos e operacionais do marketing na Internet (escopo, site, sinergia e sistema). Como principais resultados deste estudo pode-se destacar que escopo desse comércio eletrônico, ou seja, a estratégia e objetivos, é voltado para o estabelecimento da presença internacional da instituição financeira. O site ou interface com o cliente enfoca o oferecimento de serviços on-line como remessas de valores e abertura de contas na Internet. A sinergia foi conquistada por meio da integração dos processos físicos da organização e com a criação de parceiros. Quanto ao sistema, isto é, tecnologia, requisitos técnicos e administração do site, a principal decisão foi a de não terceirizar.
The electronic commerce has expanded its area of application in industries as banking services and it has especially generated new business opportunities and made possible the presence of companies in new markets. This phenomenon motivated the necessity of development and adaptation of tools to analyze this new reality. With the intention to make a critical analysis of the Web Marketing Mix (Model 4S), an exploratory case study was fulfilled in a Brazilian financial institution which has an electronic commerce site. And to provide the application of this mode it was developed a research instrument. The case study has disclosed that the financial institution reflected on the main strategical and operational aspects of Internet marketing (scope, site, synergy and system). As main results of this study can be detached that the scope of this electronic commerce, is come back toward the establishment of the international presence of the financial institution; the site or interface with the customer focuses on-line banking services; the synergy was acquired by the integration of the physical process of the organization and with the creation of partners; and about system, or either, technology, technical requirements and site administration, the main decision was to make, not buy.

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Mayoh, Lyndel. "Synchronous internet therapy for panic disorder how does it compare to face-to-face therapy? /". Connect to full text, 2006. http://hdl.handle.net/2123/1603.

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Thesis (D.C.P. / M. Sc.)--Faculty of Science, University of Sydney, 2006.
Submitted in fulfilment of the requirements for the degree of Doctor of Clinical Psychology/Master of Science to the Faculty of Science. Title from title screen (viewed 2 August 2007). Bibliography: leaves 95-107.

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Alberdi, Ion. "Malicious trafic observation using a framework to parallelize and compose midpoint inspection devices". Thesis, Toulouse, INSA, 2010. http://www.theses.fr/2010ISAT0008/document.

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Notre thèse stipule qu'au vu de l'ampleur des agissements malveillants dans l'Internet, les logiciels d'extrémité doivent être surveillés. Pour limiter le nombre de points de surveillance, nous proposons de surveiller les logiciels depuis un point d'interconnexion. Nous avons dans ce but conçu Luth, un outil permettant de composer et de paralléliser un ensemble d'inspecteurs de points d'interconnexion (appelés MI) qui implémentent des mini IDS, IPS ou pare-feux, tout en vérifiant la correction et l'optimalité de ces derniers, à l'aide d'un langage de configuration et des algorithmes associés. Nous utilisons ensuite cet outil pour surveiller des logiciels d'extrémité permettant l'observation de trafic malveillant. Premièrement, après avoir démontré la nécessité de surveiller des pots de miels collecteurs de logiciels malveillants en concevant une attaque originale, nous montrons comment nous configurons Luth pour bloquer les attaques précédemment créées tout en laissant passer les attaques émulées par le pot de miel. Dans un second temps, nous utilisons Luth pour implémenter un bac-à-sable permettant d'analyser dynamiquement et aussi sûrement que voulu, les communications réseaux des logiciels malveillants. Nous montrons comment les informations obtenues par cette analyse permettent de regrouper ces logiciels et ainsi de limiter le nombre de binaires à analyser manuellement. Ensuite nous montrons comment nous générons automatiquement des signatures permettant la détection de ces virus depuis un point d'interconnexion
Our Ph.D states that given the magnitude of malicious behavior in the Internet, end-host software must be monitored. To limit the number of monitoring points, we propose to monitor the software from an interconnection point, i.e. a midpoint. We have designed for this purpose Luth, a tool to compose and parallelize a set of midpoint inspectors (MI) that implement mini IDS, IPS or firewall-s, while checking the correction and optimality of the resulting inspection tree, using a configuration language, its interpreter and associated algorithms. We then configure this tool to monitor some end-host software used to observe malicious traffic. First, we demonstrate why malware downloading honeypots must be monitored by designing an original attack. Then, we show how we configure Luth to block these attacks while accepting the intrusions emulated by the honeypot. In a second step, we use Luth to implement a sandbox that analyzes dynamically and as safely as wanted malware's network communications. We show how the information obtained by this analysis enables us to cluster the analyzed malware and therefore limit the number of malware to analyze manually. Finally, we show how we automatically generate signatures from this analysis to detect those malware from a midpoint device

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Bendit, Zilla Patricia. "Propaganda na mídia internet: um estudo exploratório". reponame:Repositório Institucional do FGV, 2001. http://hdl.handle.net/10438/4527.

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Made available in DSpace on 2010-04-20T20:08:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-01-05T00:00:00Z
Trata do estudo da propaganda, em ambiente mediado por computadores, nas comunicações empresarias inserida na Internet. Explora o entendimento dos componentes da Internet como mídia, sua forma de atuação e seus participantes. Aborda a interatividade como aspecto inovador da mídia on-line em relação às mídias tradicionais. Incorpora o Modelo do Processo de Navegação - Teoria do Fluxo - na taxonomia de propaganda. Caracteriza as formas de propagandas on-line utilizadas e seus modelos de medição. Compara a evolução da teoria da propaganda interativa e da mídia on-line com sua utilização por participantes do mercado no Brasil até o ano 2000.

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Langrock, Klaus. "Entwicklung eines Internetportals »German Baroque Composers«. Zielsetzung und erste praktische Erfahrungen". Bärenreiter Verlag, 2012. https://slub.qucosa.de/id/qucosa%3A71941.

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Mesquita, Luis Clemente. "Structural optimization for control of stiffened laminated composite plates using nonlinear mixed integer programming". Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/52309.

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The effect of structural optimization on control of stiffened laminated composite structures is considered. The structural optimization considered here, is the maximization of structural frequencies of the structure subject to maximum weight and frequency separation constraints and an upper bound on weight. The number of plies with a given orientation and the stiffener areas form the two sets of design variables. As the number of plies is restricted to integer values, the optimization problem considered belongs to the class of nonlinear mixed integer problems (NMIP). Several efficiency measures are proposed to reduce the computational cost for solution of the optimization problem. Savings in computer time due to each of the measures is discussed. The control problem is solved using the independent modal space control technique. This technique greatly simplifies the evaluation of the sensitivity of the performance index with respect to the individual frequencies. The effect of different optimization schemes on the control performance is considered. To reduce the probability, that conclusions drawn from numerical results, are purely coincidental, a large number of cases has been studied. It has been concluded that sufficient improvement in control performance can be achieved through structural optimization.
Ph. D.

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Novikas, Aivaras. "Composite numbers in the sequences of integers". Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121017_111805-09669.

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The topics examined in this thesis were the subject of my research as a PhD student at the Faculty of Mathematics and Informatics of Vilnius University. The presented investigation concerns the existence of composite numbers in some special sequences, such as the sequence of integer parts of powers of a fixed number and a linear recurrence sequence consisting of integer numbers. The thesis consists of the introduction, 3 sections, conclusions and bibliography. In Section 1 we consider composite numbers in the sequences of integer parts of powers of rational numbers and prove that the sequence [ξ(5/4)^n], n=1,2,..., where ξ is an arbitrary positive number, contains infinitely many composite numbers. Furthermore, it is shown that there are infinitely many positive integers n such that ([ξ(5/4)^n]; 6006)>1, where 6006 = 2•3•7•11•13. Similar results are obtained for shifted powers of some other rational numbers. In particular, the same is proved for the sets of integers nearest to ξ(5/3)^n and to ξ(7/5)^n, n=1,2,.... The corresponding sets of possible divisors are also described. In Section 2 we consider composite numbers in the binary linear recurrence sequences and prove that for every pair of integer numbers (a; b), where b≠0 and (a; b)≠(±2; -1), there exist two positive relatively prime composite integers x_1, x_2 such that the sequence given by x_{n+1}=ax_n+bx_{n-1}, n=2,3,..., consists of composite terms only, i.e., the absolute value of each term is a composite integer... [to full text]
Temos, nagrinėjamos šioje disertacijoje, buvo doktorantūros studijų Vilniaus universiteto Matematikos ir informatikos fakultete objektas. Pateikti tyrimai yra susiję su sudėtinių skaičių egzistavimu tokiose sekose kaip fiksuoto skaičiaus laipsnių sveikųjų dalių seka bei tiesinė rekurentinė seka, sudaryta iš sveikųjų skaičių. Disertaciją sudaro įvadas, 3 skyriai, išvados ir literatūros sąrašas. Pirmame skyriuje nagrinėjami sudėtiniai skaičiai racionaliųjų skaičių laipsnių sveikųjų dalių sekoje bei yra įrodoma, kad sekoje [ξ(5/4)^n], n=1,2,..., kur ξ yra bet koks teigiamas skaičius, yra be galo daug sudėtinių skaičių. Be to, įrodoma, kad yra be galo daug tokių natūraliųjų skaičių n, kad ([ξ(5/4)^n]; 6006)>1, čia 6006 = 2•3•7•11•13. Įrodoma panašių rezultatų pastumtoms kai kurių kitų racionaliųjų skaičių sekoms. Pavyzdžiui, tas pats įrodoma sveikųjų skaičių, esančių arčiausiai ξ(5/3)^n bei ξ(7/5)^n, n=1,2,..., sekoms. Vėlgi nurodomos atitinkamos galimų daliklių aibės. Antrame skyriuje nagrinėjami sudėtiniai skaičiai antros eilės tiesinėse rekurentinėse sekose bei įrodoma, kad kiekvienai tokiai sveikųjų skaičių porai (a; b), kad b≠0 ir (a; b)≠(±2; -1), egzistuoja tokie du natūralieji tarpusavyje pirminiai skaičiai x_1, x_2, kad sekoje, apibrėžtoje lygtimi x_{n+1}=ax_n+bx_{n-1}, n=2,3,..., visų narių moduliai yra sudėtiniai skaičiai. Trečiame skyriuje egiptietiškų trupmenų kontekste nagrinėjamos skaičių, užrašomų tam tikru tiesiniu pavidalu, aibės. Ieškoma, kokie skaičiai... [toliau žr. visą tekstą]

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López, Julià Aleida. "La influencia de los contenidos publicitarios en el engagement hacia las comunidades virtuales de marca". Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/669768.

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Las redes sociales han ido cambiando la manera de interacción social, especializándose y ofreciendo diferentes tipos para diferentes necesidades. Algunas de ellas; Twitter principalmente para las noticias y temas de actualidad, Facebook para relaciones sociales, Instagram para contactar con marcas, establecimientos, contratar servicios, tendencias, seguir famosos o ver fotografías de tus contactos. Con el crecimiento exponencial de usuarios dentro de las comunidades, las empresas han ido involucrándose en las plataformas de manera progresiva, creando en dicha interacción diferentes fenómenos interesantes para la comunidad científica. En nuestro caso, hemos visto como la interacción dentro de una de las comunidades virtuales de marca, está muy determinada por los contenidos publicitarios. Por ello, y al ver la escasa oferta, hemos creído conveniente crear una escala que nos permitiera medir dicha variable con el fin de acabar creando un modelo en el que pudiéramos medir el impacto de los contenidos publicitarios junto con otras variables de interés para el área del marketing. Así pues, el objetivo principal de esta tesis doctoral ha sido el de explicar los efectos de los contenidos publicitarios sobre el engagement y las intenciones de compra en las redes sociales de marca. Con tal propósito, en esta tesis hemos dado respuesta a los siguientes sub-objetivos: 1) Plantear un “state-of-the-art” de las publicaciones sobre comunidades virtuales de marca que nos sitúan en el estado actual de la investigación en este contexto. 2) Desarrollar una escala de contenidos publicitarios que permita diseñar las variables precisas que responden a las percepciones de los usuarios de redes sociales de marca en relación a los contenidos publicitarios que utilizan las empresas. 3) Crear un modelo de relaciones causales en el que los contenidos publicitarios actúan como antecedentes, el engagement se la variable mediadora y las intenciones de compra de los productos de la comunidad virtual de marca sea el resultado. Con el fin de alcanzar el objetivo general y los sub-objetivos, se han realizado diversas propuestas metodológicas que se detallan en cada uno de los artículos planteados en la tesis; siendo la revisión de la literatura el método para el sub-objetivo 1, la metodología cualitativa y cuantitativa para el diseño de la escala del sub-objetivo 2 y el diseño de un modelo de relaciones causales y análisis SEM para el sub-objetivo 3. Por lo que respecta al trabajo de campo se ha realizado con usuarios de Instagram de las marcas comerciales Lanjarón y Font Vella. Las principales conclusiones de la tesis son: 1) Referente a las comunidades virtuales de marca, muestra que se trata de un tema de actualidad y en constante evolución, así como, se resumen aquelles variables más utilizadas a lo largo de la revisión, con lo que permite hacer una radiografía del momento y descubrir nuevos gaps de la temática. 2) Se aporta una escala de medición SMACS (Social Media Advertising Contents Scale) para la variable de contenidos publicitarios. 3) Se crea un modelo de ecuaciones estructurales (SEM) para estudiar la variable multidimensional de los contenidos publicitarios (SMACS), el engagement y las intenciones de compra, observando como todas las relaciones del modelo son positivas y significativas, pero destacando como el valor más alto el de la relación entre SMACS y el engagement cognitivo.

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Van, Den Eynde Laura. "Interpreting Rights Collectively: Comparative Arguments in Public Interest Litigants’ Briefs on Fundamental Rights Issues". Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/217681.

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This research explores the role of public interest litigants in the circulation of arguments among courts regarding the interpretation of fundamental rights. Such circulation is often labeled ‘judicial dialogue’. ‘Public interest litigants’ are here defined as entities (individuals or groups) with no direct interest in the case, who use procedural avenues to participate in the litigation. Despite extensive scholarly attention for judicial dialogue, the necessity for more empirical research devoted to the exchanges among jurisdictions had been stressed. Three jurisdictions with different postures towards cross-citations were chosen for the analysis: the U.S. Supreme Court, the European Court of Human Rights and the South African Constitutional Court. Among their vast case law, landmark cases were selected dealing firstly with death penalty or related questions and secondly with discrimination on the basis of sexual orientation. Briefs submitted by public interest litigants to courts were collected and analyzed, mainly to inquire about the identity of the actors involved in the cases, to see whether their briefs contain comparative material and, if they do, to record what sort of references are made and whether they are accompanied by justifications supporting their relevance.The analysis reveals that the briefs contain comparative material. Many public interest litigants can be considered as messengers of this information. They push for the detachment of judicial interpretation from the text at hand and propose a variant of the interpretative exercise in which the mobilized material is not exclusively jurisdiction-bound. The cross-analysis also reveals that, contrary to the picture painted by the literature on the phenomenon, there are actually many comparisons in the broad sense (referring for example to a ‘universal practice’) that are used in a norm-centric way, that is, where the simple mention of a comparative element in the form of a broad reference or the outcome of a foreign case should have weight in the adjudication and not in a reason-centric way, that is, by exposing the reasoning of a foreign judge. The research also hypothesized that the comparative material brought by public interest litigants influences the judges. Analyzing the cases using the process-tracing method allowed to substantiate that briefs are read and established that several comparative references brought by public interest litigants were debated during the oral arguments and found an echo in the judgments (in majority and dissenting opinions). Along with the use of other methods such as interviews of judges, the hypothesis was thus confirmed.Exploring the roles of external actors also enables to supply the literature on judicial dialogue with factual insights regarding the identities of the actors behind the circulation of legal arguments. It was found that, in the United States, the traditional domestic ‘repeat players’ (that is, actors often involved in the litigation) do not clearly embrace a comparative approach while most public interest litigants in Europe and South Africa do. Similarly, the pregnant role of transnational actors is underlined. The analysis suggests an explanation drawn from an aspect of the legal culture in which the public interest litigants evolve and which influences their argumentative strategies: the horizon of the ambient rights discourse: a civil rights discourse, more territorially bounded (and more often found in the U.S. context), is distinguished from a human rights or fundamental rights discourse which entails a more cosmopolitan dimension.The final part of the research explores and discusses the justifications provided by public interest litigants to support the relevance of a comparative approach in the interpretation of rights. The compilation of these justifications allows to confront those provided first hand to the judges with those constructed post facto by the scholarly literature. It reveals the uncertain implications of some of these justifications, in particular the one pointing to the universal nature of the discussed rights and the one invoking the need for consistency among the approaches of jurisdictions.The research thus allows to confirm the hypothesis that public interest litigants play a key role in judicial dialogue. Moreover, it points at further promising researches, and this thesis hopes to draw the attention to often neglected elements, such as the identity and status of the actors bringing comparative information, the forms of citations and the roles assigned to them, the aspects of legal culture that are seldom mentioned in the literature and the implications of the justifications explicitly or implicitly provided for the relevance of comparative material.
Doctorat en Sciences juridiques
info:eu-repo/semantics/nonPublished

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Candel, Étienne. "Autoriser une pratique, légitimer une écriture, composer une culture : les conditions de possibilité d’une critique littéraire participative sur Internet : étude éditoriale de six sites amateurs". Paris 4, 2007. http://www.theses.fr/2007PA040250.

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En considérant comme une pratique sociale signifiante l’édification de formes éditoriales dans les médias, on interroge dans cette thèse les conditions sémiotiques de possibilité d’un type de communication particulier, la critique littéraire participative sur Internet, que l’on examine d’abord comme une formation discursive. Un corpus de six sites permet dans un premier temps de questionner l’autorisation critique, c’est-à-dire la manière dont les cadres éditoriaux instituent le participant et ordonnent ses énoncés en fonction de principes génériques et génétiques. La recherche soulève ensuite la question des implications sociopolitiques des textes de participants sur Internet. Enfin, on observe cette écriture en rapport avec l’historicité des pratiques du texte, selon son inscription culturelle, et selon la valeur médiatique des médiations qu’elle mobilise et compose : en définissant la participation, la pratique éditoriale détermine la place et la valeur du média
Considering the construction of editorial forms in the media to be a significant social practice, this thesis examines the semiologic preconditions of a particular form of communication, participative literary criticism on the Internet, which is initially studied as a ‘discursive formation’. An initial study of the six websites enables the author to question critical authorisation, or the manner in which different editorial forms give a role to the participant and order their discourse, as a function of the principles of literary style and genesis. The research subsequently raises the question of the socio-political presuppositions of participants’ texts on Internet. Lastly, we observe this form of writing from the perspective of the history of textual practice, according to its cultural placement, and the value for the media of the mediations it mobilises and composes : by defining participation, the editorial practice determines the place and value of the medium

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Ahronian, Céline. "Les noms composés anglais, français et espagnols du domaine d'Internet : traduction des composés anglais en français et en espagnol". Lyon 2, 2005. http://theses.univ-lyon2.fr/documents/lyon2/2005/ahronian_c.

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Cette recherche s'inscrit dans une perspective d'aide à la traduction et de création néologique. L'objet scientifique est de dresser le profil linguistique des noms composés anglais, français et espagnols du lexique d'Internet et de fonder une méthode pour traduire les noms composés anglais à venir du lexique d'Internet en français et en espagnol en élaborant un système d'équivalences types entre les composés sources et cibles. L'objectif de la première partie est de cerner le nom composé et de savoir comment isoler les composés parmi toutes les unités lexicales. La deuxième partie dresse le profil morphosyntaxique et sémantique des noms composés anglais, français et espagnols du lexique d'Internet, qui ont été collectés dans un corpus trilingue constitué de revues informatiques, pour fournir au traducteur les informations essentielles à leur traduction et pour asseoir la base du futur système d'équivalences. L'examen des composés recueillis présente une organisation tripartite (profil morphosyntaxique, profil sémantique et combinatoire intermatricielle). Dans la troisième partie, le décor théorique et méthodologique essentiel à la conception des équivalences types est planté. La méthode de création des équivalences anglais-français et anglais-espagnol, les résultats obtenus et l'identification des exceptions sont commentés. L'intérêt que présente l'informatisation du système d'équivalences pour le traducteur ayant été considéré, la recherche se termine avec l'automatisation du système d'équivalences, c'est-à-dire avec l'élaboration d'un outil d'aide à la traduction. Le système d'équivalences prend la forme d'une base de données terminologique multilingue
This research is part of a perspective of translation assistance and neological creation. The scientific object is to draw up the linguistic profile of the English, French and Spanish compound nouns of the Internet lexicon and to design a method for translating the English compounds to come into French and Spanish built upon a standard equivalence system between the source and target compounds. The first part aims at outlining the compound noun and isolating compounds among all the lexical units. The morphosyntactic and semantic profile of the English, French and Spanish compound nouns of the Internet terminology is outlined in the second part so that translators can be supplied with the required information and the foundations for the future equivalence system can be laid. The terms were collected in a trilingual corpus made up of computer magazines. The analysis of the compounds is divided into three parts (morphosyntactic profile, semantic profile and combination rules). The methodological and theoretical background required to develop the standard equivalences is set in the third part. The creation of the English-French and English-Spanish equivalence system, the obtained results and the identification of the exceptions are also explained in this part. After having considered the interest of computerizing the equivalence system for translators, the research ends with the automation of the equivalence system, i. E. The design of a translation assistance tool. A multilingual terminological database is created

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Schreiner, Estela. "Uma especulação sobre a internet no operador de turismo: o caso CVC". reponame:Repositório Institucional do FGV, 2004. http://hdl.handle.net/10438/2348.

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Made available in DSpace on 2010-04-20T20:51:20Z (GMT). No. of bitstreams: 3 98387.pdf.jpg: 16975 bytes, checksum: 3dd125e44ea216a8ba536de4b369bb6b (MD5) 98387.pdf: 424690 bytes, checksum: a464d89d0140803964eef6177b44a74a (MD5) 98387.pdf.txt: 255178 bytes, checksum: ebbca44db9135dc7763bf6d3682f266a (MD5) Previous issue date: 2004-04-07T00:00:00Z
This paper analyses, in an exploratory way, through a case study carried out at CVC, the possible utilizations of the Internet in tourism operation. In order to lead this approach, the impact toward the variables of the market mix and the process of service provision under the user’s eyes has been studied The theoretical differential adopted in the study establishes the fundamentals to analyze the empirical evidences and provides adequacy of the concepts used to the characteristics of the operator. The model of the market mix is used as a conduit to build a referential. It is adjusted both to the services provision and to the operator. Thus, it is considered that the product of the tourism operator is the service provision that involves contracting, organization and execution. Analysis on the Internet is aimed at the first two processes. What can be concluded, as regards the variables of the market mix in the company under study, is that the Internet is little used to break the boundaries of time and place, considered by the literature as the main benefits offered to the user as direct channel by the Internet. Its use is more associated to the integration of the industry members than to reaching the user’s higher satisfaction, for the possibility the website offers of personalizing the market mix. The flexibility of the mix, as to products and rates, is more benefited from in travel agencies. The effects of the use of the Internet in the process of services provided by CVC can be seen in the virtual agency (the website) and in the travel agent. Service provision via website represents the first major change, as the interaction between users, employees and physical environment is being replaced by electronic interaction, chat and e-mail, or even by phone, and the physical infrastructure by computers and communication links. In the case of travel agencies, the change is related to the possibility of having active participation of the user in the elaboration phase of the package, which favorably leads to flexibility in tourism programs.
O trabalho analisa em caráter exploratório, através de um estudo de caso com a CVC, quais são as possíveis utilizações da Internet na operação de turismo. Para direcionar essa abordagem verifica-se o impacto em relação às variáveis do composto mercadológico e ao processo de prestação de serviços sob a ótica do usuário. O referencial teórico adotado na pesquisa estabelece as bases para análise das evidências empíricas e proporciona adaptações dos conceitos utilizados às características do operador. O modelo de composto mercadológico é utilizado como fio condutor na construção de um referencial. Ele é adaptado à prestação de serviços e ao operador. Desta forma, considera-se que o produto do operador de turismo é a prestação do serviço que envolve a contratação, organização e execução. A análise da internet está direcionada para os dois primeiros processos. O que se conclui em relação às variáveis do composto mercadológico na empresa analisada é que a internet é pouco utilizada para romper as limitações de tempo e lugar, consideradas pela literatura como os principais benefícios da Internet como canal direto para o usuário. Seu uso está mais associado à integração dos membros da indústria do que para atingir maior satisfação do usuário pela possibilidade que o site oferece para personalização do composto mercadológico. A flexibilidade do composto, no produto e no preço, é mais aproveitada nas agências de viagens. Os efeitos do uso da Internet no processo de prestação de serviço da CVC são percebidos na agência virtual (o site) e no agente de viagem. A prestação de serviço via site representa a primeira grande alteração, pois a interação entre usuários, funcionários e ambiente físico é substituída pela interação eletrônica, chat e e-mail, ou mesmo telefone, e a infra-estrutura física por computadores e linhas de comunicação. No caso das agências de viagens, a alteração está relacionada à possibilidade de participação ativa do usuário na fase de elaboração do pacote, o que propicia flexibilidade nos programas de turismo.

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DUPUIS, JEAN-MARC. "Interet compare de l'epreuve d'effort et de l'epreuve au dipyridamole pour le diagnostic de coronaropathie par la scintigraphie myocardique au thallium en presence d'un bloc de branche gauche complet : resultats preliminaires". Angers, 1990. http://www.theses.fr/1990ANGE1047.

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Angarita, Arocha Rafael Enrique. "An approach for Self-healing Transactional Composite Services". Thesis, Paris 9, 2015. http://www.theses.fr/2015PA090051/document.

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Dans ce mémoire de thèse, nous présentons une approche d’exécution auto-corrective (self-healing) de services composites, basée sur des agents capables de prendre, de manière autonome, des décisions pendant l’exécution des services, à partir de leurs connaissances. Dans un premier temps, nous définissons, de manière formelle, en utilisant des réseaux de Petri colorés, les services composites, leur processus d’exécution, et leurs mécanismes de tolérance aux pannes. Notre approche offre plusieurs mécanismes de reprise sur panne alternatifs : la récupération en arrière avec compensation ; la récupération en avant avec ré-exécution et/ou remplacement de service ; et le point de contrôle (checkpointing), à partir duquel il est possible de reprendre l’exécution du service ultérieurement. Dans notre approche, les services sont contrôlés par des agents, i.e. des composants dont le rôle est de s’assurer que l’exécution des services soit tolérante aux pannes. Notre approche est également étendue afin de permettre un auto-recouvrement. Dans cette extension, les agents disposent d’une base de connaissances contenant à la fois des informations sur eux-mêmes et sur le contexte d’exécution. Pour prendre des décisions concernant la sélection des stratégies de récupération, les agents font des déductions en fonction des informations qu’ils ont sur l’ensemble du service composite, sur eux-mêmes, tout en prenant en compte également ce qui est attendu et ce qui se passe réellement lors de l’exécution. Finalement, nous illustrons notre approche par une évaluation expérimentale en utilisant un cas d’étude
In this thesis, we present a self-healing approach for composite services supported by knowledge-based agents capable of making decisions at runtime. First, we introduce our formal definition of composite services, their execution processes, and their fault tolerance mechanisms using Colored Petri nets. We implement the following recovery mechanisms: backward recovery through compensation; forward recovery through service retry and service replacement; and checkpointing as an alternative strategy. We introduce the concept of Service Agents, which are software components in charge of component services and their fault tolerance execution control. We then extend our approach with self-healing capabilities. In this self-healing extension, Service Agents are knowledge-based agents; that is, they are self- and context-aware. To make decisions about the selection of recovery and proactive fault tolerance strategies, Service Agents make deductions based on the information they have about the whole composite service, about themselves, and about what is expected and what it is really happening at runtime. Finally, we illustrate our approach and evaluate it experimentally using a case study

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Vantomme, Pascal. "Contribution a l'etude des outillages et de leur lubrification dans le formage du verre creux : evolution vers une lubrification integree". Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13112.

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Etude des proprietes de l'interface moule-verre et plus particulierement les phenomenes d'adherence. Trois types de materiaux de construction du moule sont etudies : des ceramiques (siliciures ou carbure de bore), des composites carbone-carbone et des materiaux frittes. Pour chacun de ses materiaux, les problemes de frottement et d'adherence sont etudies. L'analyse tribologique montre que la lubrification est convenable pour de faibles taux de permeabilite

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Lagunas, François. "Construction de thésaurus de mots composés". Paris, ENMP, 2004. http://www.theses.fr/2004ENMP1392.

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Assaf, Emmanuel. "Kinetic study of reactions with interest to atmospheric chemistry by simultaneous detection of OH and RO2 radicals coupled to laser photolysis". Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10095/document.

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Les radicaux hydroxyle OH et hydroperoxyle HO2 jouent un rôle essentiel dans de nombreux processus d’oxydation dans l’atmosphère. La dégradation des composés organiques volatils dans les conditions troposphériques est généralement initiée par la réaction avec les radicaux OH, suivie par la réaction des produits d’oxydation avec l’oxygène. Dans le cadre de cette thèse, des études on été menées afin de mieux comprendre les mécanismes d’oxydation d’espèces d’intérêt atmosphérique. Pour cela, un système expérimental composé d’une photolyse laser couplée à des techniques spectroscopiques de détection résolues dans le temps: Laser Induced Fluorescence Induite par Laser (LIF, pour la détection des radicaux OH) et continuous-wave Cavity Ring-Down Spectroscopy (cw-CRDS, pour la détection des radicaux OH, HO2 et RO2) ont été utilisés. Après avoir mesuré le spectre ainsi que les sections efficaces d’absorption de quelques raies sélectionnées de OH, HO2 et RO2 dans la région du proche infrarouge, quatre système ont été étudiés avec les techniques mentionnées ci-dessus: CH3O2 + OH, C2H5O2 + OH, C3H7O2 + OH and C4H9O2 + OH. La constante de vitesse ainsi que le rendement de HO2 ont été déterminés pour ces quatre réactions. En outre, les constantes de vitesse de réactions secondaires telles que CH3O + HO2, CH3O + CH3O ou OH + HO2 ont été déterminées
The hydroxyl radical OH and hydroperoxy radical HO2 radicals are key species in many oxidation processes in the atmosphere. The degradation of volatile organic compounds under tropospheric conditions is induced by reactions with hydroxyl radicals followed by the subsequent chemistry of the initial OH oxidation products with O2. This thesis was focused on the kinetic study of some of these atmospherically relevant reactions to better understand their oxidation mechanisms using an experimental system of laser photolysis coupled to Laser Induced Fluorescence (LIF, for OH radical) and continuous-wave Cavity Ring-Down Spectroscopy (cw-CRDS, for OH, HO2 and RO2 radicals) detection techniques. After determining the infrared spectrum of OH, HO2 and CH3O2 radicals in the near infrared region and the absorption cross-sections of few selected lines, four systems were studied with the above mentioned techniques: CH3O2 + OH, C2H5O2 + OH, C3H7O2 + OH and C4H9O2 + OH. The rate constant and the HO2 yield of the four reactions were determined. In addition, the rate constants of few secondary reactions such as CH3O + HO2, CH3O + CH3O or OH + HO2 have been determined

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AUTIER, PHILIPPE. "Gravure ionique reactive des semiconducteurs iii-v avec controle in situ par interferometrie laser : applications a l'optique integree". Paris 6, 1989. http://www.theses.fr/1989PA066018.

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Cette these est une contribution a l'etude de la gravure ionique reactive (rie) des semiconducteurs iii-v en plasmas chlores cl#2/ch#4/h#2/ar. Une analyse in situ de la surface gravee a ete mise en uvre par une methode d'interferometrie laser sur des motifs de test constitues de reseaux. Les parametres caracteristiques de la surface gravee sont alors accessibles en temps reel. La rie offre un outil pour les applications a l'optique integree: realisation de dispositifs passifs (guides a faibles pertes, miroirs ou virages) et de dispositifs actifs (commutateurs, modulateurs, detecteurs, etc. ). La precision apportee par le systeme d'interferometrie laser donne un meilleur controle du confinement lateral: c'est un avantage pour realiser des structures qui font intervenir des phenomenes de conversion de modes ou de couplage par ondes evanescentes

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Novikas, Aivaras. "Sudėtiniai skaičiai sveikųjų skaičių sekose". Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121017_111756-80483.

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Temos, nagrinėjamos šioje disertacijoje, buvo doktorantūros studijų Vilniaus universiteto Matematikos ir informatikos fakultete objektas. Pateikti tyrimai yra susiję su sudėtinių skaičių egzistavimu tokiose sekose kaip fiksuoto skaičiaus laipsnių sveikųjų dalių seka bei tiesinė rekurentinė seka, sudaryta iš sveikųjų skaičių. Disertaciją sudaro įvadas, 3 skyriai, išvados ir literatūros sąrašas. Pirmame skyriuje nagrinėjami sudėtiniai skaičiai racionaliųjų skaičių laipsnių sveikųjų dalių sekoje bei yra įrodoma, kad sekoje [ξ(5/4)^n], n=1,2,..., kur ξ yra bet koks teigiamas skaičius, yra be galo daug sudėtinių skaičių. Be to, įrodoma, kad yra be galo daug tokių natūraliųjų skaičių n, kad ([ξ(5/4)^n]; 6006)>1, čia 6006 = 2•3•7•11•13. Įrodoma panašių rezultatų pastumtoms kai kurių kitų racionaliųjų skaičių sekoms. Pavyzdžiui, tas pats įrodoma sveikųjų skaičių, esančių arčiausiai ξ(5/3)^n bei ξ(7/5)^n, n=1,2,..., sekoms. Vėlgi nurodomos atitinkamos galimų daliklių aibės. Antrame skyriuje nagrinėjami sudėtiniai skaičiai antros eilės tiesinėse rekurentinėse sekose bei įrodoma, kad kiekvienai tokiai sveikųjų skaičių porai (a; b), kad b≠0 ir (a; b)≠(±2; -1), egzistuoja tokie du natūralieji tarpusavyje pirminiai skaičiai x_1, x_2, kad sekoje, apibrėžtoje lygtimi x_{n+1}=ax_n+bx_{n-1}, n=2,3,..., visų narių moduliai yra sudėtiniai skaičiai. Trečiame skyriuje egiptietiškų trupmenų kontekste nagrinėjamos skaičių, užrašomų tam tikru tiesiniu pavidalu, aibės. Ieškoma, kokie skaičiai... [toliau žr. visą tekstą]
The topics examined in this thesis were the subject of my research as a PhD student at the Faculty of Mathematics and Informatics of Vilnius University. The presented investigation concerns the existence of composite numbers in some special sequences, such as the sequence of integer parts of powers of a fixed number and a linear recurrence sequence consisting of integer numbers. The thesis consists of the introduction, 3 sections, conclusions and bibliography. In Section 1 we consider composite numbers in the sequences of integer parts of powers of rational numbers and prove that the sequence [ξ(5/4)^n], n=1,2,..., where ξ is an arbitrary positive number, contains infinitely many composite numbers. Furthermore, it is shown that there are infinitely many positive integers n such that ([ξ(5/4)^n]; 6006)>1, where 6006 = 2•3•7•11•13. Similar results are obtained for shifted powers of some other rational numbers. In particular, the same is proved for the sets of integers nearest to ξ(5/3)^n and to ξ(7/5)^n, n=1,2,.... The corresponding sets of possible divisors are also described. In Section 2 we consider composite numbers in the binary linear recurrence sequences and prove that for every pair of integer numbers (a; b), where b≠0 and (a; b)≠(±2; -1), there exist two positive relatively prime composite integers x_1, x_2 such that the sequence given by x_{n+1}=ax_n+bx_{n-1}, n=2,3,..., consists of composite terms only, i.e., the absolute value of each term is a composite integer... [to full text]

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Flink, Oskar. "Wireless electrocardiogram transmission based on ultra wideband radio". Thesis, Uppsala universitet, Signaler och System, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-352454.

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Ultra wideband (UWB) communications has been a subject of much discussion over the last decade. The method of UWB has had a hard time to establish itself among other methods such as Bluetooth and WiFi but as internet of things (IoT) gains a foothold in our daily lives, UWB has presented some new application areas. These application areas are, among other things, self driving cars, energy efficient data transfer, health care applications, sensor networks and real time location systems. This project aims to use UWB communications to real-world applications, specifically, electrocardiography (ECG) - an application in health care in this project, and develop a prototype for the application. The prototype consists of two Android smart phones and two UWB modules (EVK1000 evaluation kits from DecaWave, Inc). Each smartphone connects a UWB module so that the two smart phones, one as sender and the other as receiver, can communicate directly through UWB radios. This is intended to serve as a proof-of-concept that UWB devices are well suited for short range data transfer applications. The result achieved by the project is an android application along with sending and receiving programs for the development boards by Decawave and additional information regarding UWB and its uses. The results also include a comparison of UWB, Bluetooth and WiFi as of todays standard. The goal of the project is to learn how android applications are programmed, how UWB is used in todays technology and how to program and use development boards presented by companies. The prototype has been built and shown that 12-lead simulated ECGsignals from the sender can be transfered to the receiver through the UWB communications. The work includes programming (in C) the two UWB modules for UWB communications, and Java for the android applications (programs) on the smart phones. The Android application is handling transmission of ECG signals to the sending UWB module and then receiving them from the receiving UWB module as well as displaying them on the receiver. The future work to continue the present project is to replace the sending smart phone by an ECG device that sends real ECG signals.

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29

Santos, Cláudia Susana Pereira dos. "Statistical analysis of count time series with periodic structure". Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/21519.

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Doutoramento em Matemática
Os modelos autoregressivos de valores inteiros multivariados (MINAR) desempenham um papel central na análise estatística de séries temporais de contagem. Dentro do razoavelmente grande espectro de modelos MINAR propostos na literatura, muito poucos focam a análise de séries de contagem com estrutura periódica. A análise dos processos de contagem multivariados apresenta muitos desafios que vão desde a especificação do modelo até à estimação de parâmetros. Esta tese tem como objetivo dar uma contribuição nessa direção. Especificamente, o objetivo deste trabalho é duplo: primeiro, introduzimos o processo multivariado periódico de ordem um, PMINAR(1). As propriedades probabilísticas e estatísticas do modelo são estudadas em detalhe. Para superar as dificuldades computacionais decorrentes da utilização do método da máxima verosimilhança introduzimos uma abordagem baseada na verosimilhança composta. O desempenho do método proposto e outros métodos concorrentes na estimação dos parâmetros é comparado através de um estudo de simulação. A previsão também é abordada. Uma aplicação de dados reais relacionados com a análise de fogos é apresentada. Em segundo lugar, propomos dois modelos INAR (univariado e bivariado) com estrutura periódica, S-PINAR(1) e BS-PINAR(1), respetivamente. Ambos os modelos são baseados no operador signed thinning permitindo contagens de valores positivos e negativos. Apresentamos as propriedades probabilísticas básicas e estatísticas dos modelos periódicos. As inovações são modeladas através das distribuições Skellam univariada e bivariada, respetivamente. Para avaliar o desempenho dos estimadores dos mínimos quadrados condicionais e da máxima verosimilhança condicional, foi realizado um estudo de simulação para o modelo S-PINAR(1).
Multivariate INteger–valued AutoRegressive (MINAR) processes play a central role in the statistical analysis of integer-valued time series. Within the reasonably large spectrum of MINAR models proposed in the literature, however, only a few focus on the analysis of time series of count data with periodic structure. The analysis of multivariate counting processes presents many challenging problems ranging from model specification to parameter estimation. This thesis aims at giving a contribution towards this direction. Specifically, the purpose of this research is two-fold: first, we introduce the periodic multivariate process of order one (PMINAR(1) in short). The probabilistic and also the statistical properties of the model are studied in detail. To overcome the computational difficulties arising from the use of the maximum likelihood method we introduce a composite likelihood-based approach. The performance of the proposed method and other competitors methods of estimation is compared through a simulation study. Forecasting is also addressed. An application to a real data set related with the analysis of fire activity is presented. Secondly, we propose two INAR (univariate and bivariate) models with periodic structure, S-PINAR(1) and BS-PINAR(1), respectively. Both models are based on the signed thinning operator allowing for positive and negative counts. We examine the basic probabilistic and also the statistical properties of the periodic models. Innovations are modeled by univariate and bivariate Skellam distributions, respectively. To study the performance of the conditional least squares and conditional maximum likelihood estimators, a simulation study is conducted for the S-PINAR(1) model.

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30

Hammad, Yousef Bani. "Novel Methods for Primality Testing and Factoring". Queensland University of Technology, 2005. http://eprints.qut.edu.au/16142/.

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From the time of the Greeks, primality testing and factoring have fascinated mathematicians, and for centuries following the Greeks primality testing and factorization were pursued by enthusiasts and professional mathematicians for their intrisic value. There was little practical application. One example application was to determine whether or not the Fermat numbers, that is, numbers of the form F;, = 2'" + 1 were prime. Fermat conjectured that for all n they were prime. For n = 1,2,3,4, the Fermat numbers are prime, but Euler showed that F; was not prime and to date no F,, n 2 5 has been found to be prime. Thus, for nearly 2000 years primality testing and factorization was largely pure mathematics. This all changed in the mid 1970's with the advent of public key cryptography. Large prime numbers are used in generating keys in many public key cryptosystems and the security of many of these cryptosystems depends on the difficulty of factoring numbers with large prime factors. Thus, the race was on to develop new algorithms to determine the primality or otherwise of a given large integer and to determine the factors of given large integers. The development of such algorithms continues today. This thesis develops both of these themes. The first part of this thesis deals with primality testing and after a brief introduction to primality testing a new probabilistic primality algorithm, ALI, is introduced. It is analysed in detail and compared to Fermat and Miller-Rabin primality tests. It is shown that the ALI algorithm is more efficient than the Miller-Rabin algorithm in some aspects. The second part of the thesis deals with factoring and after looking closely at various types of algorithms a new algorithm, RAK, is presented. It is analysed in detail and compared with Fermat factorization. The RAK algorithm is shown to be significantly more efficient than the Fermat factoring algorithm. A number of enhancements is made to the basic RAK algorithm in order to improve its performance. The RAK algorithm with its enhancements is known as IMPROVEDRAK. In conjunction with this work on factorization an improvement to Shor's factoring algorithm is presented. For many integers Shor's algorithm uses a quantum computer multiple times to factor a composite number into its prime factors. It is shown that Shor's alorithm can be modified in a way such that the use of a quantum computer is required just once. The common thread throughout this thesis is the application of factoring and primality testing techniques to integer types which commonly occur in public key cryptosystems. Thus, this thesis contributes not only in the area of pure mathematics but also in the very contemporary area of cryptology.

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31

Termanini, Mohamed Jalal. "Etude et optimisation d'un processus technologique de realisation de transistors bipolaires a heterojonction : application aux composants hyperfrequences de puissance". Toulouse 3, 1987. http://www.theses.fr/1987TOU30069.

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Transistors a heterojonction gaalas/gaas. Apres un rappel theorique des proprietes des heterojonctions, un avant projet d'un transistor destine a l'amplification haute frequence de puissance a ete propose. Nous avons ensuite presente les differentes methodes d'obtention des couches necessaires aux dispositifs, epitaxie en phase liquide, epitaxie par jets moleculaires, depot en phase vapeur a partir d'organometalliques. Ces etudes ont permis d'affiner chacune des methodes et de definir dans chaque cas les conditions optimales de realisation. Enfin, nous avons analyse et compare les differents procedes mis a notre disposition pour realiser entierement les transistors, un processus optimum a ainsi pu etre defini. Les dispositifs realises sont presentes et les resultats obtenus discutes, ouvrant la voie au developpement des circuits integres bipolaires asga

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32

Andersson, Johan y Fredrik Norrman. "Container Orchestration : the Migration Path to Kubernetes". Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97744.

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As IT platforms grow larger and more complex, so does the underlying infrastructure. Virtualization is an essential factor for more efficient resource allocation, improving both the management and environmental impact. It allows more robust solutions and facilitates the use of IaC (infrastructure ascode). Many systems developed today consist of containerized microservices. Considered the standard of container orchestration, Kubernetes is the natural next step for many companies. But how do we move on from previous solutions to a Kubernetes cluster? We found that there are not a lot of detailed enough guidelines available, and set out to gain more knowledge by diving into the subject - implementing prototypes that would act as a foundation for a resulting guideline of how it can be done.

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33

Gillardin, Gérard. "Mise au point d'un appareillage de photoluminescence a haute resolution spatiale : application a l'etude des semiconducteurs et dispositifs electroniques iii-v". Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF2D216.

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Description du dispositif permettant d'analyser des plaques de 2**(") de diametre a 1ok, avec de hautes resolutions laterales (20 et 1mu m), eventuellement a diverses energies. Realisation de cartographies a 300 et 10k: tres bonne correlation entre intensite de photoluminescence et defauts cristallins et chimiques; correspondance avec des mesures de resistivite electrique. Mise au point d'une procedure de qualification de l'homogeneite microscopique de gaas semi-isolant. Possibilite de prevoir la dispersion des tensions de seuil de transistors fet d'apres l'analyse du support de defaut, donc de classer et choisir les supports pour la realisation de circuits integres

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34

Vondra, Marek. "Měření kvality a dostupnosti GSM sítě". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219098.

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The thesis is specialized on a possibility of measuring qualities and availability of a cellular radio system and also on evaluation qualities, fruitfulness interface, permeability etc. It includes short description of a basic mobile technology. Further analysis of the possibility of measuring the mobile network and how implement the measure. It also includes a draft program for measuring and evaluation of the GSM network with help several tests by a mobile phone connected through the Bluetooth.

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35

Hawari, Ahmad. "Le contrôle de la gestion au sein de la société anonyme en droit français". Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM1077.

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Le phénomène de concentration du pouvoir entre les mains d'un groupe restreint de dirigeants, la rupture du lien entre le pouvoir décisionnel et le risque capitalistique, ont poussé le législateur à intervenir pour renforcer le contrôle des sociétés anonymes et ce, de manière à permettre un équilibre des forces et donc de faire contre poids au pouvoir de direction. L'exercice du contrôle par les actionnaires est assuré en premier lieu au sein de l'assemblée générale, en délibérant et en votant, dans ladite assemblée. Mais ce contrôle doit poser des règles impératives, dépassant les intérêts catégoriels, et visant la protection de l'intérêt social. Ainsi, le contrôle du bon fonctionnement de la société suppose que les actionnaires possèdent les moyens de contrôler la gestion de la société. Sur ce point, l'information va jouer un rôle très important car elle permet à tous les actionnaires de pouvoir bien exercer ce contrôle. Elle est donc un instrument privilégié de contrôle des dirigeants. Par ailleurs, le conseil d'administration exerce aussi un véritable rôle de contrôle de la direction pour éviter la concentration des pouvoirs; l'émergence du conseil d'administration comme organe de surveillance visant une meilleure séparation des pouvoirs entre la direction et son contrôle. Le législateur a cherché à renforcer le pouvoir de contrôle par un contrôleur légal, le Commissaire aux comptes. Ce contrôle consiste à contrôler la situation comptable et financière de la société. Le commissaire a un devoir de révélation des faits délictueux. Ce contrôle a pour but le bon fonctionnement de la société, et surtout de prévenir les différentes crises qui peuvent toucher la société
The power concentration phenomenon which is between the hands of a restricted group of leaders, the breach of link between the decisional power and the capitalist risk, have prompted the legislature to intervene to strengthen the control of the public limited companies and to allow a balance of forces and thus to prevent the excessive power practiced by management. The exercise of control by shareholders is first made possible in the chore of the shareholder's general assembly, by deliberation and voting. Yet, this exercise must subject to mandatory rules, beyond the vested interests in order to protect the social interest. Thus, controlling the smooth functioning of company requires that shareholders have the means to control the management of the company. On this point, information will play a very important role because it will allow all shareholders to exercise such control. So, it is a privileged instrument of control of managers. In addition, the board of directors also has a real role in management control to avoid the concentration of power; the emergence of the board of directors as a surveillance organ for better separation of powers between management and control. The legislature has sought to strengthen the power of control by an auditor; the Legal Auditor. This control is to control the accounting and financial situation of the company. The Legal Auditor has a duty of disclosure of offenses. This control is for the advantage of the good functioning of the company, and especially to anticipate crises that can affect that company

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36

Larson, Lindal Johan. "Makt och musik : Föreningen Svenska Tonsättare på konstmusikfältet 1919-1939". Thesis, Stockholms universitet, Historiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-132205.

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The aim of the thesis is to examine the power of organized composers of art music in interwar Sweden and their development of areas of interest 1919-1939. The period is chosen due to the 1918 founding of the Society of Swedish Composers (the FST). Although of significant value, most of the previous research on the subject has focused on individual composers. The thesis, instead, combines concepts of Pierre Bourdieu’s theory of cultural fields with power theories of Steven Lukes and Walter Korpi to investigate access to power resources and exercise of power within the field of music by the FST and its members 1919-1939. The results show that the FST of 1939 had greater access to economic capital, which correlated with the expansion of the FST’s exercise of power and areas of interest concerning the whole field of Swedish music, rather than exclusively the field of art music. Social networks tied to the FST, however, never ceased to be an important factor influencing the operations of the FST.

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37

Renne, Jean-Paul. "Regime switching in bond yield and spread dynamics". Thesis, Paris 9, 2013. http://www.theses.fr/2013PA090038/document.

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Cette thèse développe différents modèles à changements de régimes de la structure par terme des taux d'intérêt. Un cadre général de modélisation des taux associés à différents émetteurs y est présenté (chapitre 2). Ce cadre est exploité afin d’analyser les taux d’État de dix pays de la zone euro entre 1999 et 2012 (chapitre 3). Un régime de crise permet d’expliquer l’accroissement de la volatilité des taux pendant la crise financière. Cette étude montre en outre que la liquidité des titres est déterminante pour leur valorisation. Le cadre de modélisation est complété afin d’étudier le lien de causalité entre deux types de tensions: celles liées à des motifs de liquidité et celles liées à des motifs de crédit (chapitre 4). Enfin, l'influence de la politique monétaire sur la courbe des taux est examinée grâce à un modèle dans lequel une utilisation innovante des changements de régime permet de produire des trajectoires réalistes des taux directeurs de la banque centrale (chapitre 5)
This doctoral thesis develops regime-switching models of the term structure of interest rates. A general framework is proposed to model the joint dynamics of yield curves associated with different debtors (Chapter 2). This framework is exploited to analyse the fluctuations of ten euro-area sovereign yield curves over the period 1999-2012 (Chapter 3). In this model, a crisis regime is key to account for the increase in spread volatility during the financial crisis. Also, this study shows that market liquidity is an important determinant of bond prices. The model is then completed in order to explore potential causality relationships between two kinds of stresses: liquidity- and credit-related stresses (Chapter 4). Finally, the influence of monetary policy on the yield curve is investigated by means of a term structure model where an innovative use of regime-switching techniques makes it possible to capture salient features of the dynamics of monetary-policy rates (chapter 5)

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38

Moussa, Imed. "Applications des circuits numériques en arseniure de gallium dans les systèmes à haut débit de communication et dans les calculateurs performants". Grenoble INPG, 1996. http://www.theses.fr/1996INPG0077.

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Ce document presente diverses applications des circuits numeriques en arseniure de gallium (asga) dans les systemes a haut debit de communication et dans les calculateurs performants. Ces applications ont guidees l'ensemble des recherches effectuees au cours de la these dont ce document est l'aboutissement. La necessite de performances elevees, inherentes aux applications traitees, a necessite l'etude et la mise en uvre de topologies differentes qui ont donne lieu a un ensemble de solutions efficaces. Dans le but d'obtenir une marge de bruit assez elevee et de bonnes performances en vitesse, en complexite et en puissance consommee, la conception de circuit en asga souleve des themes majeurs qui se resument aux points suivants: dimentionnement de transistors, topologies de masques, strategies d'amplification et de distribution d'horloges. Ils apparaissent nettement dans les applications traites qui sont decrites ci-dessous. La premiere application de la technologie asga dans les circuits a grande vitesse concerne la conception d'un diviseur redondant a 16 chiffres binaires. Une methode purement full custom a ete utilisee pour exploiter le potentiel de la technologie. Cette methode a permis des optimisations au niveau de la vitesse, de la densite et de la consommation. Le principal probleme mis en evidence lie a cette methode, est sa lourdeur d'emploi, qui la rend pratiquement inutilisable dans le cas des circuits a grande complexite. Pour mettre rapidement sur le marche un produit en asga, nous avons choisi de mettre en application les methodes de synthese de haut niveau afin de generer un chemin de donnees destine a un microprocesseur de type risc. L'avantage en temps de conception lie aux outils de synthese comportementale s'est avere compense par une augmentation de la surface d'implantation comparee a la methode full-custom. Ceci etant un facteur determinant en asga par rapport au cmos, technologie bien meilleur marche et initialement visee par cet outil, il est donc ressorti tres clairement de cette application l'interet d'appliquer un compromis consistant a synthetiser automatiquement des parties du circuit ou la vitesse n'est pas critique, et a utiliser la methode full custom pour les parties ou la vitesse est un parametre important. Cette derniere approche a ete adoptee pour la conception d'un circuit destine a des applications atm (asynchronous transfer mode). Ce circuit a ete concu pour fonctionner a une frequence de 312 mhz. La consommation de puissance a ete estimee autour de 4w, ce qui s'avere etre une performance tout a fait competitive compte tenu du debit a assumer, par rapport aux conceptions cmos existantes

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39

Christoforou, Georges. "Conception de préamplificateurs intégrés pour fonctionnement à basse température et sous rayonnement intense". Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10031.

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Le grand nombre de voies d'acquisition des signaux issus du calorimetre electromagnetique du detecteur atlas (machine lhc) pose un probleme de cablage et des solutions prevoyant le placement de la partie amont de la chaine electronique d'acquisition dans le meme milieu que l'element froid de detection ont ete envisagees. L'electronique amont doit donc etre resistante aux radiations (2 10#1#4n/cm#2, 0. 5mrad), fonctionner a la temperature de l'argon liquide (89k), avoir un faible niveau de bruit, une non-linearite inferieure a 1%, consommer peu et etre rapide (40mhz). Dans le cadre de ce projet nous avons explore les possibilites offertes par les differentes technologies. Nous avons retenu les technologies asga qui resistent aux radiations et fonctionnent jusqu'a des temperatures cryogeniques. Nous avons mis en evidence au moyen de caracterisations (a basse temperature) le fait que les technologies asga sont capables de fonctionner dans un tel environnement. Les amplificateurs concus presentent une amelioration de leurs performances quand ils fonctionnent a basse temperature (reduction du bruit, reduction de la puissance dissipee augmentation du gain) rencontrant les contraintes posees par la calorimetrie dans atlas, faible niveau de bruit, faible puissance dissipee, grande dynamique de sortie et bonne non-linearite integrale, mais ne sont pas encore capables d'assurer un niveau de fiabilite de fabrication suffisant. Nous abordons egalement le probleme de la simulation des mesfet a basse temperature. Les modeles manquant, nous avons employe pour la simulation des parametres spice extraits a la temperature de l'azote liquide. Finalement, nous avons approfondi la simulation du bruit des circuits analogiques et mis en evidence les problemes existant ainsi que les precautions a prendre afin de rendre la simulation spice du bruit plus fiable.

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40

Sanclemente, Vicenç. "Beating the drums! journalism, forum or platform: blogs in China and Cuba (2010) through the cases of Wang Keqin and Yoani Sánchez". Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/401857.

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Es diu que és impossible que els països autoritaris tinguin una opinió pública plenament desenvolupada. Jürgen Habermas criticava Internet per la dispersió dels continguts i la manca de mediadors. No obstant això, a països com la Xina, en alguns períodes recents, els blocs i els Micro blocs van permetre introduir alguns espais de deliberació, així conduir casos fins els mitjans de comunicació tradicionals. Hem estudiat dos estats, Xina i Cuba amb un enfoc completament diferent cap a les noves tecnologies. Xina va decidir empènyer Internet com un mitjà de desenvolupament, a la vegada que el tractava de controlar, i els ciutadans cubans han viscut en un període d'extrema dificultat en l'accés. El bloc del periodista xinès Wang Keqin a la Xina i el de Generación Y de Yoani Sánchez a Cuba, van estar especialment actius l’any 2010. Per aquest treball, hem utilitzat una triangulació de mètodes: anàlisi quantitativa i qualitativa sobre el contingut dels posts i dels comentaris, combinat amb l'anàlisi etnològica, entrevistes directes als bloggers i als corresponsals. El bloc de Wang Keqin, un dels pioners del periodisme d'investigació a la Xina, va suposar crear una finestra per a casos d'injustícia a les províncies fins ampliar la controvèrsia a tot el país. El periodista esdevé la primera part essencial d'una cadena contra la impunitat. Ciutadans que sol·licitaven moralitat i justícia van col·laborar amb ell, amb sentit de compromís i de comunitat, per resoldre cada cas, que significava, que acabessin als tribunals la justícia. El treball de Yoani Sánchez es va veure influenciat pel contrast entre la manca d'accés a Internet en el seu propi país i la seva extraordinària influència a l'exterior. Ella elaborava, més que reportatges, articles d’opinió, editorials, sobre notícies o vida quotidiana. Va acabar convertint-se en un altaveu dels punts de vista dels dissidents mentre defensava el diàleg nacional. L'enorme quantitat de comentaris al seu bloc va servir per crear un grup de debat entre diferents tipus d'expatriats, que reconeixien Yoani Sánchez com una portaveu no oficial des de dins de l’illa.
Is is said that is impossible to have a fully developed public opinion in authoritarian countries. Jürgen Habermas criticized Internet because of the dispersion of content and the lack of mediators. However, in countries like China, in some recent periods, blogs and micro blogs permitted the introduction of some deliberation spaces, as well as targeting issues for mainstream media. We are studying two states, China and Cuba whose approach to new technologies has been completely different. China decided to push Internet as a tool for development, while trying to control it, and Cuban citizens have lived in a period of extreme difficulty in accessing. The blog of the Chinese journalist Wang Keqin in China and Generación Y from Yoani Sánchez, in Cuba, both bounded in a year of intense production in 2010. We used a triangulation of methods: quantitative and qualitative analysis on the content of posts and commentaries combined with ethnological analysis, adding direct interviews to the players and correspondents. The blog of Wang Keqin, one of the pioneers of investigative journalism in China, supposed to create a window for cases of injustice in the provinces and to move it to nationwide controversy. The journalist became the essential first part of a chain against impunity. Citizens asking for morality and justice collaborate with him, with a sense of engagement and community to resolve cases, which mean that finished went to justice. Yoani Sánchez work was heavily influenced by the contrast of the lack of Internet access in her country and her extraordinary influence abroad. More than reports, she elaborated opinion articles, editorials, based in her reflection about news or quotidian life. She becomes a speaker of dissent views while defending national dialogue. The enormous number of comments in her blog served to create a forum group, between different types of expatriates. They recognized Sánchez as an unofficial speaker from within.

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41

Dufour, Maxime. "Clauses contractuelles et non-concurrence : approche de droit des affaires". Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0316.

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Dans notre monde actuel, les entreprises utilisent, pour se prémunir de toute atteinte et protéger au maximum leurs intérêts économiques, des techniques contractuelles élaborées par la pratique telles que les clauses de non-concurrence, les clauses de confidentialité, les clauses de non-réaffiliation et les clauses de non sollicitation.Ces clauses occupent de multiples champs de l’activité contractuelle en mêlant le droit des contrats, le droit des affaires et le droit du travail. Elles visent à interdire au cocontractant, d’exercer une activité professionnelle, de divulguer des informations secrètes, ou encore d’embaucher certains collaborateurs. Ainsi, elles viennent limiter une liberté fondamentale, plus spécialement la liberté du commerce et de l’industrie. Dès lors, il semble nécessaire d’élaborer un régime juridique commun à toutes ces clauses afin de préserver d’un coté la protection de l’activité économique des entreprises et de l’autre la sauvegarde de la liberté économique des contractants soumis à de telles clauses. L’intérêt d’un régime commun est d’anticiper les conditions de validité et de mise en œuvre des ce type de clauses. De cette façon, la prévisibilité ne ferait plus défaut aux contractants. L’élaboration de ce droit commun passe par deux étapes. La première est relative à l’identification des clauses limitatives de concurrence. Il s’agit de saisir leur autonomie par rapport aux contrats dans lesquels elles peuvent être insérées et d’en tirer les conséquences au niveau leur validité. La seconde est relative à la mise en œuvre de ces clauses. Leur application est délicate car dépendante pour une grande partie de la précision de leur contenu. En cas de non-respect, un vaste choix de remèdes est offert au contractant déçu pour venir sanctionner le manquement contractuel constaté
In the modern world, to guard themselves from damage and to protect at best their economical interests, companies use contractual techniques developed by usage such as non-compete clauses,confidentiality clauses, non-reaffiliation clauses and non-solicitation clauses. These clauses cover many fields of contractual legality, mixing contract law, labor law and business law. Their aim is to prohibit the co-contractor to practice a professional activity, to disclose secret information, or even to employ specific colleagues, or contributors. Thus, they are brought to restrict a fundamental freedom, specifically the freedom of trade and of industry. As a result, it appears necessary to formulate a common legal system for all these clauses so as to preserve on one side the protection of the economic activity of the companies et on the other side the safeguard of the economic freedom of the co-contractors subject to these clauses. The benefit of a common legal system is the anticipation of the conditions of validity and implementation of this type of clause. In this way, the cocontractants will not lack in foresight. The development of this common right is in two steps. This includes confirming their autonomy relative to the contracts in which they may be inserted and draw the necessary conclusions regarding their validity. The second step is relative to the implementation of these clauses. Their application is sensitive because it depends for the most part on the precision of their content. In case of a breach of contract, a large array of legal remedies is available to the aggrieved contractor to penalize the breach of contract

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42

Fontboté, Pradilla Pol. "El arbitraje en el sector público: ¿un extraño invitado?" Doctoral thesis, Universitat Pompeu Fabra, 2020. http://hdl.handle.net/10803/670027.

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Esta tesis doctoral analiza la viabilidad de la utilización del arbitraje en las controversias del sector público español, partiendo de la base de que el consentimiento de las entidades públicas no se prestaría caso a caso, sino que se hallaría previsto en la ley. Se defiende que ni la distinción entre derecho público y derecho privado, ni la autotutela administrativa, ni la existencia de un orden jurisdiccional contencioso-administrativo constituyen por ellas mismas una barrera infranqueable para el arbitraje público. Esta institución, que está orientada a mejorar la realización del derecho a la tutela efectiva de derechos e intereses legítimos, resulta conforme a los principios y reglas constitucionales aplicables, que incluyen el principio de legalidad de la actuación administrativa y la garantía de que la misma esté sometida a un control jurídico externo e independiente. Sin embargo, se propone que se apruebe una ley general de arbitraje público en aras de una mayor seguridad jurídica. En este contexto, debe ser el legislador quien determine en qué ámbitos del sector público puede acudirse al arbitraje, a partir de consideraciones de oportunidad. Se sugieren tres criterios orientativos para llevar a cabo esta tarea: primero, el riesgo de que se desarrolle un procedimiento arbitral sin el consentimiento de todas las partes implicadas; segundo, la necesidad de contar con jurisprudencia; y, tercero, el mayor grado de rendición de cuentas democráticas que requieren ciertos asuntos. Finalmente, la tesis se refiere a las cuestiones principales que debería abordar una ley general sobre el arbitraje público.
This PhD thesis discusses the feasibility of using arbitration in Spanish public sector disputes, assuming that the consent of public entities to arbitral proceedings would not be given on a case-by-case basis, but it would be foreseen by the law. It is argued that neither the distinction between public and private law, nor administrative enforcement mechanisms, nor the existence of a special division of courts for administrative matters constitute an unsurmountable barrier for private-public arbitration in themselves. This mechanism, which is geared to improving the fulfillment of the right to an effective legal protection of rights and legitimate interests, is consistent with the relevant constitutional principles and rules as well, including the subjection of administrative action to law and to external and independent legal review. However, it is suggested for a general law on private-public arbitration to be enacted in order to provide more legal certainty. In this context, it is for the legislature to determine in what realms of the public sector arbitration may be resorted to, drawing from policy assessments. Three guiding criteria are suggested for this task to be carried out: first, the risk of pursuing arbitration proceedings without the consent of all involved parties; second, the need for judicial precedents; and, third, the higher degree of democratic accountability which some matters may require. Finally, the thesis refers to the main questions which should be addressed in a general law on private-public arbitration.
Aquesta tesi doctoral analitza la viabilitat de la utilització de l'arbitratge en les controvèrsies del sector públic espanyol, partint de la base que el consentiment de les entitats públiques no es prestaria cas a cas, sinó que es trobaria previst en la llei. Es defensa que ni la distinció entre dret públic i dret privat, ni l'autotutela administrativa, ni l'existència d'un ordre jurisdiccional contenciós-administratiu constitueixen per elles mateixes una barrera infranquejable per a l'arbitratge públic. Aquesta institució, que està orientada a millorar la realització del dret a la tutela efectiva de drets i interessos legítims, també resulta conforme als principis i regles constitucionals aplicables, que inclouen el principi de legalitat de l'actuació administrativa i la garantia que aquesta estigui sotmesa a un control jurídic extern i independent. No obstant això, es proposa que s'aprovi una llei general d'arbitratge públic amb la finalitat d’oferir una major seguretat jurídica. En aquest context, ha de ser el legislador qui determini en quins àmbits del sector públic es pot recórrer a l'arbitratge, a partir de consideracions d'oportunitat. Se suggereixen tres criteris orientatius per a dur a terme aquesta tasca: primer, el risc que es desenvolupi un procediment arbitral sense el consentiment de totes les parts implicades; segon, la necessitat de comptar amb jurisprudència; i, tercer, el major grau de rendició de comptes democràtica que requereixen certs assumptes. Finalment, la tesi es refereix a les qüestions principals que hauria d'abordar una llei general sobre l'arbitratge públic.

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43

Tavares, Lucas Alves. "O envolvimento da proteína adaptadora 1 (AP-1) no mecanismo de regulação negativa do receptor CD4 por Nef de HIV-1". Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17136/tde-06012017-113215/.

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O Vírus da Imunodeficiência Humana (HIV) é o agente etiológico da Síndrome da Imunodeficiência Adquirida (AIDS). A AIDS é uma doença de distribuição mundial, e estima-se que existam atualmente pelo menos 36,9 milhões de pessoas infectadas com o vírus. Durante o seu ciclo replicativo, o HIV promove diversas alterações na fisiologia da célula hospedeira a fim de promover sua sobrevivência e potencializar a replicação. A rápida progressão da infecção pelo HIV-1 em humanos e em modelos animais está intimamente ligada à função da proteína acessória Nef. Dentre as diversas ações de Nef está a regulação negativa de proteínas importantes na resposta imunológica, como o receptor CD4. Sabe-se que esta ação resulta da indução da degradação de CD4 em lisossomos, mas os mecanismos moleculares envolvidos ainda são totalmente elucidados. Nef forma um complexo tripartite com a cauda citosólica de CD4 e a proteína adaptadora 2 (AP-2), em vesículas revestidas por clatrina nascentes, induzindo a internalização e degradação lisossomal de CD4. Pesquisas anteriores demonstraram que o direcionamento de CD4 aos lisossomos por Nef envolve a entrada do receptor na via dos corpos multivesiculares (MVBs), por um mecanismo atípico, pois, embora não necessite da ubiquitinação de carga, depende da ação de proteínas que compõem os ESCRTs (Endosomal Sorting Complexes Required for Transport) e da ação de Alix, uma proteína acessória da maquinaria ESCRT. Já foi reportado que Nef interage com subunidades dos complexos AP-1, AP-2, AP-3 e Nef não parece interagir com subunidades de AP-4 e AP-5. Entretanto, o papel da interação de Nef com AP-1 e AP-3 na regulação negativa de CD4 ainda não está totalmente elucidado. Ademais, AP-1, AP-2 e AP-3 são potencialmente heterogêneos devido à existência de isoformas múltiplas das subunidades codificadas por diferentes genes. Todavia, existem poucos estudos para demonstrar se as diferentes combinações de isoformas dos APs são formadas e se possuem propriedades funcionais distintas. O presente trabalho procurou identificar e caracterizar fatores celulares envolvidos na regulação do tráfego intracelular de proteínas no processo de regulação negativa de CD4 induzido por Nef. Mais especificamente, este estudo buscou caracterizar a participação do complexo AP-1 na modulação negativa de CD4 por Nef de HIV-1, através do estudo funcional das duas isoformas de ?-adaptina, subunidades de AP-1. Utilizando a técnica de Pull-down demonstramos que Nef é capaz de interagir com ?2. Além disso, nossos dados de Imunoblot indicaram que a proteína ?2-adaptina, e não ?1-adaptina, é necessária no processo de degradação lisossomal de CD4 por Nef e que esta participação é conservada para degradação de CD4 por Nef de diferentes cepas virais. Ademais, por citometria de fluxo, o silenciamento de ?2, e não de ?1, compromete a diminuição dos níveis de CD4 por Nef da membrana plasmática. A análise por imunofluorêsncia indireta também revelou que a diminuição dos níveis de ?2 impede a redistribuição de CD4 por Nef para regiões perinucleares, acarretando no acúmulo de CD4, retirados por Nef da membrana plasmática, em endossomos primários. A depleção de ?1A, outra subunidade de AP-1, acarretou na diminuição dos níveis celulares de ?2 e ?1, bem como, no comprometimento da eficiente degradação de CD4 por Nef. Além disso, foi possível observar que, ao perturbar a maquinaria ESCRT via super-expressão de HRS (uma subunidade do complexo ESCRT-0), ocorreu um acumulo de ?2 em endossomos dilatados contendo HRS-GFP, nos quais também detectou-se CD4 que foi internalizado por Nef. Em conjunto, os resultados indicam que ?2-adaptina é uma importante molécula para o direcionamento de CD4 por Nef para a via ESCRT/MVB, mostrando ser uma proteína relevante no sistema endo-lisossomal. Ademais, os resultados indicaram que as isoformas ?-adaptinas não só possuem funções distintas, mas também parecem compor complexos AP-1 com diferentes funções celulares, já que apenas a variante AP-1 contendo ?2, mas não ?1, participa da regulação negativa de CD4 por Nef. Estes estudos contribuem para o melhor entendimento dos mecanismos moleculares envolvidos na atividade de Nef, que poderão também ajudar na melhor compreensão da patogênese do HIV e da síndrome relacionada. Em adição, este trabalho contribui para o entendimento de processos fundamentais da regulação do tráfego de proteínas transmembrana no sistema endo-lisossomal.
The Human Immunodeficiency Virus (HIV) is the etiologic agent of Acquired Immunodeficiency Syndrome (AIDS). AIDS is a disease which has a global distribution, and it is estimated that there are currently at least 36.9 million people infected with the virus. During the replication cycle, HIV promotes several changes in the physiology of the host cell to promote their survival and enhance replication. The fast progression of HIV-1 in humans and animal models is closely linked to the function of an accessory protein Nef. Among several actions of Nef, one is the most important is the down-regulation of proteins from the immune response, such as the CD4 receptor. It is known that this action causes CD4 degradation in lysosome, but the molecular mechanisms are still incompletely understood. Nef forms a tripartite complex with the cytosolic tail of the CD4 and adapter protein 2 (AP-2) in clathrin-coated vesicles, inducing CD4 internalization and lysosome degradation. Previous research has demonstrated that CD4 target to lysosomes by Nef involves targeting of this receptor to multivesicular bodies (MVBs) pathway by an atypical mechanism because, although not need charging ubiquitination, depends on the proteins from ESCRTs (Endosomal Sorting Complexes Required for Transport) machinery and the action of Alix, an accessory protein ESCRT machinery. It has been reported that Nef interacts with subunits of AP- 1, AP-2, AP-3 complexes and Nef does not appear to interact with AP-4 and AP-5 subunits. However, the role of Nef interaction with AP-1 or AP-3 in CD4 down-regulation is poorly understood. Furthermore, AP-1, AP-2 and AP-3 are potentially heterogeneous due to the existence of multiple subunits isoforms encoded by different genes. However, there are few studies to demonstrate if the different combinations of APs isoforms are form and if they have distinct functional properties. This study aim to identify and characterize cellular factors involved on CD4 down-modulation induced by Nef from HIV-1. More specifically, this study aimed to characterize the involvement of AP-1 complex in the down-regulation of CD4 by Nef HIV-1 through the functional study of the two isoforms of ?-adaptins, AP-1 subunits. By pull-down technique, we showed that Nef is able to interact with ?2. In addition, our data from immunoblots indicated that ?2- adaptin, not ?1-adaptin, is required in Nef-mediated targeting of CD4 to lysosomes and the ?2 participation in this process is conserved by Nef from different viral strains. Furthermore, by flow cytometry assay, ?2 depletion, but not ?1 depletion, compromises the reduction of surface CD4 levels induced by Nef. Immunofluorescence microscopy analysis also revealed that ?2 depletion impairs the redistribution of CD4 by Nef to juxtanuclear region, resulting in CD4 accumulation in primary endosomes. Knockdown of ?1A, another subunit of AP-1, resulted in decreased cellular levels of ?1 and ?2 and, compromising the efficient CD4 degradation by Nef. Moreover, upon artificially stabilizing ESCRT-I in early endosomes, via overexpression of HRS, internalized CD4 accumulates in enlarged HRS-GFP positive endosomes, where co-localize with ?2. Together, the results indicate that ?2-adaptin is a molecule that is essential for CD4 targeting by Nef to ESCRT/MVB pathway, being an important protein in the endo-lysosomal system. Furthermore, the results indicate that ?-adaptins isoforms not only have different functions, but also seem to compose AP-1 complex with distinct cell functions, and only the AP-1 variant comprising ?2, but not ?1, acts in the CD4 down-regulation induced by Nef. These studies contribute to a better understanding on the molecular mechanisms involved in Nef activities, which may also help to improve the understanding of the HIV pathogenesis and the related syndrome. In addition, this work contributes with the understanding of primordial process regulation on intracellular trafficking of transmembrane proteins.

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44

Chen, Guan-Hong y 陳冠宏. "Using Meta-regression Analysis to Compare the Treatment Effects of Internet Addiction". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/02010934012594068365.

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碩士
淡江大學
數學學系碩士班
102
Meta analysis contrary to topic, collected all independent study, based on their research results using a weighted average approach to quantify, systematic re-analyzed, and finally get this issue of integration conclusion, it’s a quantitative research integrated approach. Meta-analysis purposes includes: (1) increase the overall treatment effect detection capability, (2) estimation with a specific treatment-related effect values (Effect Size), (3) to assess the effect of the amount of each study between the existence of heterogeneity (Heterogeneity), related research (4) development of a new effective treatment methods. Internet addiction is a strong desire for the Internet, will want to see the Internet impulsive, unable to extricate themselves into a state. However, the spirit of the American psychiatrist and Clinical pharmacologist Goldberg in 1996 with "Internet addiction disorder" (Internet Addiction Disorder, IAD) This terminology is used to describe the formation of the network because of over-indulging a similar behavioral abnormal behavior addiction. Internet addiction (IA) may cause neurological complications, psychological stress, social problems or health problems, and even lead to serious mental illness, particularly affective disorders, anxiety disorders, impulse control disorders and attention deficit hyperactivity disorder, and so on. The current treatment of Internet addiction can be divided into two aspects of psychological and pharmacological treatment, the psychiatric community is uncertain psychological or pharmacological treatment alone or the combined treatment, whichever is better able to effectively reduce the symptoms of Internet addiction. In this study, the set of all obtained through assessment of Internet search tools to compare the efficacy of the existing Internet addiction meta-analysis to assess the efficacy of (Meta analysis) and meta-regression (Meta-regression) Internet addiction, the main focus lies whether it can reduce the symptoms of Internet addiction, reduce access time, reduce symptoms such as anxiety or depression.

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45

Cunningham, Sarah Bainter. "The compass of reason intellectual interest in the beautiful as a mode of orientation /". Diss., 2004. http://etd.library.vanderbilt.edu/ETD-db/available/etd-11272004-172937/.

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46

HUANG, YI-WEI y 黃奕維. "Implementation of the Slope Disaster Prevention Monitoring System by Composite LPWAN on Internet of Things". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2vx2t7.

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碩士
國立臺北科技大學
電機工程系
107
The Internet of Things (IoT) has developed quite rapidly in recent year, and with the vigorous development of Low Power Wide Area Network (LPWAN), the application of IoT in various fields has become more mature. However, under the set-up of emerging technologies in smart cities (direct buildings), safety doubts cannot be ignored. Therefore, this paper focuses on disaster prevention (indirect care) in order to establish a disaster prevention monitoring system and ensure the safety of pedestrians. As Taiwan has a large number of mountainsides, it is an important topic to prevent disasters in side slope areas. Therefore, this paper targets stratum sliding and rockfall disasters in side slope areas. For the monitoring of stratum sliding disaster prevention, a slope stratum sliding simulation machine was improved and a simulating stratum was added to make the simulation situation more like the sliding situation of the real stratum. For rockfall disaster prevention monitoring, appropriate monitoring equipment must be set up according to the protective project, and quantitative data of rockfall disaster should also be displayed. Finally, a disaster prevention monitoring system will be set up for slope sliding (underground) and rockfall on a slope (above ground). The controlling values shall be set according to the site disaster situation, integrating open data provided by the government so as to carry out data analysis and achieve the benefits of alarm broadcasting.

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47

Huang, Guo-min y 黃國閔. "Perfect Gaussian Integer Sequences of Composite Length andTheir Applications in Physical Layer Security". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/a5w2ud.

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碩士
國立中山大學
通訊工程研究所
103
A Gaussian integer is a complex number whose real and imaginary parts are both integers. A sequence is defined as perfect if and only if it has an ideal periodic auto-correlation function. This thesis proposes a method to construct a sparse perfect Gaussian integer sequence (SPGIS) of composite length in which most of the sequence elements are zero. The proposed SPGISs are obtained by linearly combining P base sequences or their cyclic-shift equivalents by using nonzero Gaussian integer coefficients of equal magnitudes, in which the sequence length is N=PQ, where P and Q are both positive integers, and P, Q >1. Each base sequence consists of P nonzero elements. The mathematical expression of the periodic cross-correlation function of any two proposed SPGISs of the same length is also a SPGIS. Consequently, this characteristic can be adopted to increase the number of proposed SPGISs. Furthermore, an application of the proposed SPGIS is presented in this thesis for physical layer security to prevent eavesdroppers.

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48

Fadhilla, Hanifa Nur y 范涵凝. "The influences of inflation, interest rate, exchange rate, and S&P 500 on indonesia composite stock price index". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/vsy8bf.

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碩士
國立政治大學
國際經營管理英語碩士學位學程(IMBA)
107
This research is aimed to investigate the influence of inflation, interest rate, exchange rate, and S&P 500 on Indonesia Composite Stock Price (I-CSPI). This study examines the factors influencing I-CSPI in Indonesia Stock Exchange (IDX). The period of this study is from 2014 to 2018. The object of this research is I-CSPI. This study used secondary data. The hypotheses are examined using four models to support the factors influencing I-CSPI. The result of this research expressed that from independent variables do not influence I-CSPI. Thus, the hypotheses are rejected. This research result derives from t-test statistics. Based on F-test, independent variables are not simultaneously influence I-CSPI.

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49

Saccucci, Laurent. "INTERET THERAPEUTIQUE DE LA PROTEINE A20 DES ORTHOPOXVIRUS COMME CIBLE PERTINENTE D'APTAMERES PEPTIDIQUES ET DE COMPOSES CHIMIQUES BLOQUANT SES INTERACTIONS ESSENTIELLES A L'INTERIEUR DU COMPLEXE DE REPLICATION VIRALE". Phd thesis, 2009. http://tel.archives-ouvertes.fr/tel-00440047.

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La variole est l'un des pires fléaux qu'ait connu l'humanité jusqu'à son éradication en 1980. Il existe aujourd'hui une menace terroriste de réémergence du virus de la variole comme arme biologique. Le manque de moyens thérapeutiques, la faible immunité de la population mondiale depuis l'arrêt de la vaccination antivariolique et les complications post-vaccinales liées à l'utilisation du vaccin réplicatif historique ont conduit ces dernières années à une intensification des recherches pour lutter contre la variole et les autres virus du genre orthopoxvirus. En complément d'assurer la production d'un nouveau vaccin antivariolique répondant aux normes sanitaires actuelles, il est indispensable de développer des molécules antivirales efficaces aux modes d'actions différents, utilisables immédiatement en cas d'attaque terroriste et pour pallier les complications post-vaccinales. L'objectif du travail de thèse est d'explorer de nouvelles stratégies thérapeutiques en ciblant plus particulièrement la réplication du virus de la vaccine, utilisé comme modèle substitutif au virus de la variole. La première stratégie est l'utilisation d'aptamères peptidiques ciblant A20, une protéine centrale du complexe de réplication formant avec l'uracile ADN glycosylase D4 le facteur de processivité pour l'ADN polymérase virale. Ces peptides sont sélectionnés in vivo en double-hybride en levure pour interagir avec une cible protéique et potentiellement l'inhiber. Ainsi nous avons sélectionné un aptamère interagissant avec une région critique de la protéine cible A20 et capable d'inhiber significativement la réplication du virus de la vaccine en culture cellulaire. La seconde stratégie est l'utilisation d'un criblage haut débit de molécules chimiques pour leur capacité à rompre les interactions entre notre cible de choix A20 et deux de ses interacteurs connus, la protéine D4 et la primase/hélicase D5, par une approche basée sur l'utilisation de deux rapporteurs luciférase en levure. Nous avons démontré que deux molécules issues du criblage permettaient l'inhibition significative et spécifique de la réplication de plusieurs orthopoxvirus, in vitro. Ces travaux viennent compléter le faible arsenal thérapeutique disponible destiné à lutter contre les infections à orthopoxvirus.

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50

El, Bakoury Islam. "Integer-forcing architectures: cloud-radio access networks, time-variation and interference alignment". Thesis, 2019. https://hdl.handle.net/2144/36140.

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Next-generation wireless communication systems will need to contend with many active mobile devices, each of which will require a very high data rate. To cope with this growing demand, network deployments are becoming denser, leading to higher interference between active users. Conventional architectures aim to mitigate this interference through careful design of signaling and scheduling protocols. Unfortunately, these methods become less effective as the device density increases. One promising option is to enable cellular basestations (i.e., cell towers) to jointly process their received signals for decoding users’ data packets as well as to jointly encode their data packets to the users. This joint processing architecture is often enabled by a cloud radio access network that links the basestations to a central processing unit via dedicated connections. One of the main contributions of this thesis is a novel end-to-end communications architecture for cloud radio access networks as well as a detailed comparison to prior approaches, both via theoretical bounds and numerical simulations. Recent work has that the following high-level approach has numerous advantages: each basestation quantizes its observed signal and sends it to the central processing unit for decoding, which in turn generates signals for the basestations to transmit, and sends them quantized versions. This thesis follows an integer-forcing approach that uses the fact that, if codewords are drawn from a linear codebook, then their integer-linear combinations are themselves codewords. Overall, this architecture requires integer-forcing channel coding from the users to the central processing unit and back, which handles interference between the users’ codewords, as well as integer-forcing source coding from the basestations to the central processing unit and back, which handles correlations between the basestations’ analog signals. Prior work on integer-forcing has proposed and analyzed channel coding strategies as well as a source coding strategy for the basestations to the central processing unit, and this thesis proposes a source coding strategy for the other direction. Iterative algorithms are developed to optimize the parameters of the proposed architecture, which involve real-valued beamforming and equalization matrices and integer-valued coefficient matrices in a quadratic objective. Beyond the cloud radio setting, it is argued that the integer-forcing approach is a promising framework for interference alignment between multiple transmitter-receiver pairs. In this scenario, the goal is to align the interfering data streams so that, from the perspective of each receiver, there seems to be only a signal receiver. Integer-forcing interference alignment accomplishes this objective by having each receiver recover two linear combinations that can then be solved for the desired signal and the sum of the interference. Finally, this thesis investigates the impact of channel coherence on the integer-forcing strategy via numerical simulations.

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Tesis sobre el tema "Interet compose"

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