Dissertations / Theses on the topic 'Unit trains'
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Malvestio, Irene. "Detection of directional interactions between neurons from spike trains." Doctoral thesis, Universitat Pompeu Fabra, 2019. http://hdl.handle.net/10803/666226.
Full textUn problema important en la neurociència és determinar la connexió entre neurones utilitzant dades dels seus trens d’impulsos. Un mètode recent que afronta la detecció de connexions direccionals entre dinàmiques utilitzant processos puntuals és la mesura d’interdependència no lineal L. En aquesta tesi, utilitzem el model de Hindmarsh-Rose per testejar L en presència de soroll i per diferents règims dinàmics. Després comparem el desempenyorament de L en comparació al correlograma lineal i a dues mesures de trens d’impulsos. Finalment, apliquem totes aquestes mesures a dades d’impulsos de neurones obtingudes de senyals intracranials electroencefalogràfiques gravades durant una nit a un pacient amb epilèpsia. Quan utilitzem dades simulades, L demostra que és versàtil, robusta i més sensible que les mesures lineals. En canvi, utilitzant dades reals, les mesures lineals troben més connexions que L, especialment entre neurones en la mateixa àrea del cervell i durant la fase de son d’ones lentes.
Lin, Zhiyuan. "Passenger train unit scheduling optimisation." Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/8607/.
Full textFanin, Giovanni. "Optimising the Scheduling of Train Unit Cleaning." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textGilmour, Scott. "Institutional herding : evidence from the South African Unit Trust Industry." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51801.
Full textENGLISH ABSTRACT: Similar trading patterns, or so-called herding by institutional investors has interested market participants and academics for some time. Recent international research has established empirical evidence of this phenomenon. The context of this study is to observe evidence of herding by institutional investors in the South African Unit Trust Industry during the period December 1991 to September 1999. Furthermore, it investigates possible relationships between institutional herding and other topics of interest. These include risk profile of funds, market volatility, house view of management companies, size of herd, returns on hypothetical portfolios and on individual shares. Empirical results indicate evidence of herding over the period, albeit at a relatively small level. The average count herding measure of 2,4% is similar to levels recorded in the American Mutual Fund and Pension Fund Industries. A currency imbalance ratio is also used to measure herding, and indicates average levels of herding of 8,3%. This measure is deemed to reflect greater accuracy. as it measures actual currency movements (size of positions) as opposed to number of funds active in a share. On average, herding is present as often on the buy side as on the sell side of the market. Intuition would suggest that as the size of a herd increases (number of funds taking similar positions), the degree of herding increases. Evidence from this study corroborates with an American study, indicating to the contrary. There is a statistically significant negative relationship between the size of a herd and degree of herding. An observation of herding measures relative to the risk profile of funds indicates the presence of a statistically significant positive relationship. Highest levels of herding are recorded in aggressive growth funds and lowest levels in income/growth funds. This supports the rationale that aggressive growth funds, by nature of their investment objective, follow high growth firms. Analysts possess less accurate information regarding future earnings; hence the greater herding levels, for whatever reason. House views, imposed by individual management companies, may also lead to higher herding levels. There is tentative evidence of the presence of this practice, particularly in two of the seven companies observed. The relationship between herding and equity market volatility indicates an interesting phenomenon. There is the presence of a strong positive relationship between quarterly volatility estimates and levels of herding. This relationship changes materially for volatility levels in excess of 9%, indicating the clear presence of a structural breakpoint. For quarterly volatility estimates greater than 9%, the relationship weakens substantially and the slope of the relationship flattens. A quarterly time series of portfolio returns is calculated relative to levels of herding to observe trading strategies practiced by fund managers. The findings indicate weak evidence of funds following positive feedback trading strategies. Furthermore, funds trade in past winners more often than in past losers, indicating the absence of window dressing strategies. There is strong evidence of funds following profit taking strategies at quarterly intervals. The absence of return reversals indicates the absence of over reaction at quarterly intervals.
AFRIKAANSE OPSOMMING: Soortgelyke handelspatrone, of sogenaamde samedromming van institusionele beleggers, is al geruime tyd vir markdeelnemers en akademici van belang. Onlangse internasionale navorsing het empiriese bewys van hierdie fenomeen opgelewer. Hierdie studie is daarop gefokus om bewyse van samedromming deur institisionele beleggers waar te neem, binne konteks van die Suid Afrikaanse Effektetrustbedryf gedurende die periode Desember 1991 tot September 1999. Daar word verder ondersoek ingestel na 'n moontlike verhouding tussen institusionele samedromming en ander onderwerpe van belang. Ingesluit hierby is die risikoprofiel van fondse, markonbestendigheid, 'house view' van bestuursmaatkappye, grootte van die samedromming, opbrengste van hipotetiese portefeuljes en individuele aandele. Empiriese resultate dui aan dat bewyse van samedromming gedurende die relevante periode wel bestaan, alhoewel dit op 'n relatiewe klein skaal plaasvind. Die gemiddelde telling samedrommingsmaatstaf van 2,4% is soortgelyk aan die vlakke waargeneem in die Amerikaanse Mutualfonds en Pensioenfondsbedrywe. 'n Geldeenheid onewewigtigheidsverhouding word ook gebruik as maatstaf van samedromming en dui 'n gemiddelde samedrommingsvlak van 8,3% aan. Die laasgenoemde maatstaf word as meer akkuraat beskou aangesien dit werklike geldeenheidbewegings (grootte van die posisies) reflekteer, in teenstelling met die aantal fondse wat aktief betrokke is by 'n spesifieke aandele. Samedromming is oor die algemeen ewe veel teenwoordig tydens die koop en verkoop van aandele in die mark. Intuïsie dui aan dat soos die grootte van die samedromming toeneem (aantal fondse wat dieselfde posisie inneem), die intensietyd van samedromming ook toeneem. Bewyse van hierdie studie bevestig die bevindinge van 'n Amerikaanse studie wat aandui dat die teenoorgestelde waar is. Statisties gesproke is daar 'n wesenlike negatiewe verhouding tussen die grootte en intensietyd van samedromming. 'n Waarneming van samedrommingsmaatstawwe, relatief tot die risikoprofiel van fondse, dui die teenwoordigheid van 'n statistiese wesenlike positiewe verhouding aan. Die hoogste vlakke van samedromming word waargeneem by aggresiewe groeifondse en die laagste vlakke by inkomste-/groeifondse. Hierdie bevinding staaf die gedagte dat aggresiewe groeifondse, as gevolg van die aard van hul beleggingsdoelwit, hoë groei maatskappye volg. Ontleders beskik oor minder akkurate inligting ten opsigte van toekomstige opbrengs en gevolglik is daar groter samedrommingsvlakke vir watter rede ookal. 'House views', soos voorgeskryf deur individuele bestuursmaatskappye, mag ook tot hoër vlakke van samedromming lei. Voorlopige bewyse ten opsigte van die teenwoordigheid van hierdie praktyk bestaan, veral in twee van die sewe maatskappye waargeneem. Die verhouding tussen samedromming en aandelemarkonbestendigheid reflekteer 'n interessante fenomeen. 'n Sterk positiewe verhouding is teenwoordig tussen kwartaalikse onbestendigheidsskattings en vlakke van samedromming. Hierdie verhouding verander wesenlik vir onbestendigheidsvlakke groter as 9%, wat die teenwoordigheid van 'n strukturele breukpunt duidelik aantoon. 'n Kwartaallikse tydreeks van portefeulje-opbrengste word bereken relatief tot die vlak van samedromming om handelstrategië, soos deur fondsbestuurders toegepas, waar te neem. Bevindinge dui aan dat daar gebrekkige bewyse is van fondse wat positiewe terugvoerstrategië volg. Daar is ook gevind dat fondse meer gereeld handel in gewese wenners as in gewese verloorders wat 'n afwesigheid van uitstallingsstrategië aandui. Daar is besliste bewyse van fondse wat winsbejagstrategië volg met kwartaalikse tussenposes. Die afwesigheid van omgekeerde opbrengste dui die afwesigheid van oorreaksie aan met kwartaalikse tussenposes.
Robert, William E. (William Edward). "Unit coal train networks : development and application of a computer simulation model." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10393.
Full textDryhurst, Sarah. "Traits as units for prediction in ecological responses to climate change." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/24427.
Full textOettler, Jan. "Natural history, plastic traits and reproduction in ants." kostenfrei, 2008. http://www.opus-bayern.de/uni-regensburg/volltexte/2008/1089/.
Full textCampos, Christophe. "Evolution géodynamique des Klamath orientales (Californie, Etats-Unis) au Paléozoi͏̈que inférieur : sa place dans l'histoire de la marge occidentale nord-américaine." Orléans, 1995. http://www.theses.fr/1995ORLE2075.
Full textOndrejková, Petra. "Podpora intermodální dopravy v Evropské unii." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-192522.
Full textLöw, Joakim. "Ray Tracing Bézier Surfaces on GPU." Thesis, Linköping University, Department of Mathematics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5476.
Full textIn this report, we show how to implement direct ray tracing of B´ezier surfaces on graphics processing units (GPUs), in particular bicubic rectangular Bézier surfaces and nonparametric cubic Bézier triangles. We use Newton’s method for the rectangular case and show how to use this method to find the ray-surface intersection. For Newton’s method to work we must build a spatial partitioning hierarchy around each surface patch, and in general, hierarchies are essential to speed up the process of ray tracing. We have chosen to use bounding box hierarchies and show how to implement stackless traversal of such a structure on a GPU. For the nonparametric triangular case, we show how to find the wanted intersection by simply solving a cubic polynomial. Because of the limited precision of current GPUs, we also propose a numerical approach to solve the problem, using a one-dimensional Newton search.
Dvořák, Petr. "Systém pro detekci vlakových náprav a jejich číslování dle Mezinárodní železniční unie." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2015. http://www.nusl.cz/ntk/nusl-235001.
Full textDabas, Neelam. "Control of Nitrogen Regulated Virulence Traits of the Human Fungal Pathogen Candida albicans." kostenfrei, 2008. http://www.opus-bayern.de/uni-wuerzburg/volltexte/2008/2976/.
Full textAl, Nuaimi Rashed. "La traite des êtres humains en droit français, droit émirien et international." Paris 1, 2011. http://www.theses.fr/2011PA010268.
Full textMeijer, Hugo. "Trading with the enemy : the making of US export control policy toward the People’s Republic of China." Paris, Institut d'études politiques, 2013. http://www.theses.fr/2013IEPP0001.
Full textThis dissertation examines the making of US export control policy on dual-use technologies toward the People’s Republic of China (1979-2009). This facet of the Sino-American relationship has never been the subject of a monograph in the post-Cold War period. By relying on a large body of primary sources (170 interviews, declassified documents, congressional hearings, and Wikileaks), this work aims at partially filling this gap in the literature and at enriching the conceptual and methodological tools currently available for the study of foreign policy making. To do so, the proposed explanatory framework seeks to overcome the dichotomy ‘international versus domestic sources’ of foreign policy. On the one hand, this framework integrates three sets of variables – international, societal, and the state – while also examining their interactive interplay; on the other, it employs concepts and methods developed within the literature on the sociology of elites to identify the key actors involved in the decision-making process. This study shows that, after the collapse of the Soviet Union, a combination of structural, bilateral and domestic variables – and their reciprocal interactions – have eroded the capacity of the United States to restrict, both unilaterally and multilaterally, the transfer of dual-use technologies to China. In the strategic, economic, and technological environment of the post-Cold War era, using export controls, unilaterally or in concert, as a tool for technological/economic containment vis-à-vis China has become increasingly unviable
Radermacher, Tobias, Jan Lübbert, and Jürgen Weber. "On the Compensation of Dynamic Reaction Forces in Stationary Machinery." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200212.
Full textOsseiran, Adam. "Définition, étude et conception d'un microprocesseur autotestable spécifique : cobra." Grenoble INPG, 1986. http://tel.archives-ouvertes.fr/tel-00320884.
Full textZelinková, Věra. "Analýza ubytovacích kapacit v agroturistických zařízeních." Master's thesis, Vysoká škola ekonomická v Praze, 2006. http://www.nusl.cz/ntk/nusl-125028.
Full textOrellana, Rosa C. "The Hecke algebra of type B at roots of unity, Markov traces and subfactors /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p9938595.
Full textBozo, Frédéric. "Deux stratégies pour l'Europe : De Gaulle, les Etats Unis et l'Alliance atlantique : 1958-1969." Paris 10, 1993. http://www.theses.fr/1993PA100018.
Full textThis doctoral dissertation mostly draws from the resources of archival material now available in the United States, and, to a lesser extent, in France. It also rests to a large extent on oral history. The dissertation focuses on general De Gaulle's Policy toward the atlantic alliance between 1958 and 1969 in a franco-american perspective. It emphasizes the diplomatico-strategic aspects of that policy as well as its militaro-strategic aspects. By doing so, it sets the French decision to withdraw from NATO integration in 1966 in a new historical perspective
Williams, David J. (History teacher). "Company A, Nineteenth Texas Infantry: a History of a Small Town Fighting Unit." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699958/.
Full textTeboul, Bruno. "Le développement du neuromarketing aux Etats-Unis et en France. Acteurs-réseaux, traces et controverses." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLED036/document.
Full textOur research explores the comparative development of neuromarketing between the United States and France. We start by analyzing the literature on neuromarketing. We use as theoretical and methodological framework the Actor Network Theory (ANT) (in the wake of the work of Bruno Latour and Michel Callon). We show how “human and non-human” entities (“actants”): actor-network, traces (publications) and controversies form the pillars of a new discipline such as the neuromarketing. Our hybrid approach “qualitative-quantitative” allows us to build an applied methodology of the ANT: bibliometric analysis (Publish Or Perish), text mining, clustering and semantic analysis of the scientific literature and web of the neuromarketing. From these results, we build data visualizations, mapping of network graphs (Gephi) that reveal the interrelations and associations between actors, traces and controversies about neuromarketing
Alves, Gonçalo Filipe Rodrigues. "Testing the random walk hypothesis with technical trading rules." Master's thesis, Instituto Superior de Economia e Gestão, 2015. http://hdl.handle.net/10400.5/10939.
Full textNeste trabalho são testadas as hipóteses de passeio aleatório ao mercado acionista português, examinando as dezoito ações e o índice PSI-20. Considerando cotações diárias e mensais durante o período de 1999-2015. Foram utilizados os testes Augmented Dickey-Fuller (ADF), os testes de rácio de variância automático assim como os rácios de variâncias individuais e múltiplos propostos por Lo e Mackinlay, e Chow e Denning, respetivamente. Os vários testes utilizados para confirmar a hipótese de passeio aleatório das dezoito ações assim como do índice PSI-20, obtiveram resultados mistos contra a hipótese testada. Enquanto o teste Augmented Dickey-Fuller (ADF) rejeitou a hipótese de raiz unitária para todas as ações e também para o índice PSI-20 confirmando assim um passeio aleatório. Por outro lado, os testes de rácios de variâncias, rejeitam a hipótese testada para algumas das ações consideradas assim como para o índice PSI-20, contudo tende esse número de ações tende a diminuir quando se utiliza as cotações mensais.
This paper investigates the efficiency of the eighteen stocks that constitute the main Portuguese stock index, the PSI-20 of the Lisbon Stock Exchange. Tools used for the investigation were daily and monthly data from January 1999 to May of 2015, using the Augmented Dickey-Fuller (ADF) test, the automatic variance ratio by Choi and the individual and multiple variance ratios, by Lo and Mackinlay, and, Chow and Denning, which test the efficiency of the eighteen stocks and PSI-20 index. The Augmented Dickey-Fuller (ADF) tests the null hypothesis that the series has a unit root, while the variance ratio tests the random walk hypothesis. Based on these tests, the results provide mixed evidence against the random walk hypothesis. The results for the unit root tests do not reject the efficient market hypothesis for the entire sample, while the results from the variance ratio tests do, but tend to decrease in monthly data.
Zarikfar, Fard Mohsen. "L'armée en Iran sous le régime de la dynastie Pahlavi." Montpellier 1, 1987. http://www.theses.fr/1987MON10061.
Full textObservers, political analysts, and historians, wether foreigners or iranians have great difficulty to understand the attitudes of the events which leaded in 1979 to the fall of the system of mohammad reza pahlavi. Indeed, this later, has been, to some extent, trapped by his dreams of greatness, which did not only leaded him to squande the national wealths in a programe of armement - (30 to 40% of the national bu - dget) and exceeding by for the needs and the technical means of the country -but also deprived him from the power to determine by him- self his own strategy. Resulted from that ,from one side,the integra- tion of the iranian army with that of the united states,and from other side, the massive presence of the americans instructers and military counels in iran. Add to that the important number of conscripts (75% of the to- tal force) have their multiple attachments e. G religions, ethnics and regionals, which have had its impact over the attitude of the army during the crisis. (. . . )
Davis, Michael Gary. "Strategic trading in business units : a study of strategic aspects of restructuring, and the exchange, sale, disposal and acquisition of business units by firms in the United Kingdom." Thesis, University of Bath, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252119.
Full textHaine, Jean-Yves. "Entre la puissance et la norme, les choix d'alliance : introduction à la politique américaine vis-à-vis de l'OTAN." Paris, Institut d'études politiques, 2002. http://www.theses.fr/2002IEPP0025.
Full textMALLARD, FREDERIC. "Etude du transport retrograde de la sous-unite b de la toxine de shiga entre les endosomes precoces et le reseau trans-golgien." Paris 11, 2001. http://www.theses.fr/2001PA112175.
Full textHubat, Marie-Noëlle. "François Mitterrand et les Etats-Unis de 1945 à 1995 : Un itinéraire intellectuel,politique et idéologique." Paris 4, 2001. http://www.theses.fr/2001PA040050.
Full textAboutaher, Myriem. "Leadership et influence des États-Unis dans la lutte globale contre la traite des personnes. Étude de cas ˸ le Costa Rica." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCA070.
Full textThe objective of this dissertation is to understand, from a multidisciplinary perspective, why and how the United States continually affirms its leadership and influence in the global fight on human trafficking. Supported by a wide range of sources, including international reports, government records and interviews, this study makes the assertion that, since the interwar period the United States has demonstrated its ability to lead and exert an influence in the global anti-trafficking fight. This research shows that the motivation of the United States to create and propagate its own anti-trafficking norms in the international sphere has always (since the 1920s) resulted in the promotion of socio-moral values—most notably those having to do with policies related to gender and sexuality. However, in order to achieve this objective, both the style of the United States’ leadership and the mechanisms of its influence have varied over the years. This dissertation examines the fierce quarrels and institutional competition between Congress and the Department of State, particularly regarding the manner in which the United States should exert its power in the global anti-trafficking fight. This study brings to light the fact that it is at the turn of the 21th century that demands on the US legislature are critical, specifically because of its role as a natural leader in this cause at the international level, favoring a unilateral approach. The challenge that forces the United States to adopt a carrot-andstick approach with countries that refuse to follow the American example in this fight is a legal one: it is to impose the adoption of their own federal legislation on other countries, specifically the TVPA (Trafficking Victims Protection Act of 2000). This is illustrated by the case study of Costa Rica. The Costa Rican government frames the question of human trafficking in terms of security and not socio-morals as encouraged by Washington. Consequently, in the U.S. State Department’s annual global review of efforts made to combat anti-trafficking, Cost Rica has been poorly ranked for the last 17 years. Finally, with respect to the socio-moral leadership of the United States in the fight against human trafficking, the cooperation of Costa Rica is mainly organized with NGOs who adopt the American socio-moral response stance
Fallou, Hélène. "Adsorption sur des tissus de carbone activé de micropolluants émergents à l'état de traces dans les eaux : Traitements multi-échelles et modélisation." Rennes, Ecole nationale supérieure de chimie, 2015. http://www.theses.fr/2015ENCR0027.
Full textNowadays, several studies have shown the occurrence of emerging pollutants into aquatic compartments. These compounds are not totally removed using conventional treatments. Adsorption processes are promising to remove these undesirable polluants. The first part of our study focuses on the determination of adsorption kinetics and isotherms of 9 compounds, onto activated carbon fiber cloths (ACFC). These experiments were carried out using batch reactors under synthetic and environmental conditions (i. E. Initial concentrations of 1 μg. L-1 and in the presence of natural organic matter). Competitions of adsorption with natural organic matter were especially critical at trace concentrations (decrease between 30 and 95 % of the adsorption capacities at equilibrium concentration of 1 μg. L-1, with 2 mgC. L-1). The competition with the organic matter led to a large decrease of the surface diffusivity. Then, the second part is dedicated to the efficiency of the adsorption process using a fixed-bed of ACFC. Breakthrough curves were experimentally determined and simulated using fundamental parameters obtained from batch-scale experiments. An adsorption pilot, with a flow of 50 L. H-1, was carried out to treat polluted waters (C0 = 1μg. L-1). This pilot is used to study a chronical pollution removal. Various operating conditions were tested and their influence was evaluated: the type of water (tap water, surface water with different contents of natural organic matter), the velocity of the liquid phase through the filter, and the type of ACFC. Adsorption capacities are impacted by the dynamic conditions and the potential development of a biofilm on the surface of material
Arciga, Rodriguez Nohemi. "Les intérêts des États-Unis en Europe de l'Est : une partie de la stratégie nationale de sécurité : 1992-2000." Paris 1, 2004. http://www.theses.fr/2004PA010593.
Full textMachado, Bernadete. "A APRENDIZAGEM SOCIOAMBIENTAL DOS VISITANTES EM UNIDADES DE CONSERVAÇÃO." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2008. http://tede2.uepg.br/jspui/handle/prefix/1266.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
This investigation had an object of study: the socioambiental apprenticeship of a visitor from the perception of the environment looking into the interpretative trails (IT) from a preservation unit (PU). The actual research had theoretical Assumptions that are to basal the arguments, the studies proposed By Piaget regarding the construction of the knowledge. The questions that this study tries to answer are related to: what contributions the visit to an Environmental protected area can bring out about the feasibility of the socioambiental apprenticeship of the visitors? What kind of situations the experience of the visitors can contribute to provide the acquisition of socioambiental attitudes; How the interaction of the visitors with the environment, can bring cognitive disequilibriums able to promote the socioambiental apprenticeship? The objectives from the actual research are: to investigate the factors that promote the perception of the visitors into an IT, they can implicate on the socioambiental apprenticeship; to describe situations into the IT, that can contribute for the visitors to develop socioambientals attitudes from the visit of an environmental protective area; and, also, to analyze moments where the perception of the visitors produces a cognitive disequilibrium. The research was developed from the analysis of the auto guided tracks and interpretative trails, both from the Guartelá State Park (GEP), in Tibagi City in the Paraná State. The guys from this research were the individuals who visited the preservation unit (UP) in the period of February, and also, from May to August in the year of 2008. It treats a qualitative research with a methodology that involves an interface of the research-action with the ethnographic research type. We use as procedures the collection of information: a questionnaire quasi-structured, handled to the visitors in an exploratory intervention with the purpose to trace the relevance of the visit into a PU; the interview not directive directioned to the visitors in the course of the trails; aside from, the observation with self itinerary. We present as result the educational potentiality of an IT. And about the guys, was expressed that the individuals who showed themselves more sensitive with the environment also did not surpassed the centerboard in the process of construction of the knowledge. About the guys who found problems in the characteristics of the environment showed an uncentreboard effort. With this investigation was possible to conclude that the activities promoted during the interventions, showed the perception of the visitor in the IT. The cognitive disequilibrium presented by a few guys has led them to be more liable to the apprenticeship.
Esta investigação teve como objeto de estudo, a aprendizagem socioambiental do visitante a partir da percepção do ambiente pelo visitante na trilha interpretativa (TI) de uma unidade de conservação (UC). A presente pesquisa tem como pressupostos teóricos que fundamentam as discussões, os estudos propostos por Piaget em relação à construção do conhecimento. As questões que este estudo busca responder se refere a: que contribuições a visita a uma área de proteção ambiental pode apresentar para viabilizar a aprendizagem socioambiental dos visitantes?; Em que situações a experiência dos visitantes proporciona a aquisição de atitudes socioambientais?; Como a interação dos visitantes com o ambiente, pode gerar desequilíbrios cognitivos capazes de promover a aprendizagem socioambiental? Os objetivos da presente pesquisa são: investigar os fatores que promovem a percepção dos visitantes em uma TI, que podem implicar na aprendizagem socioambiental; descrever situações na TI, que podem contribuir para que os visitantes desenvolvam atitudes socioambientais a partir da visita a uma área de proteção ambiental; e, também, analisar momentos em que a percepção dos visitantes produz um desequilíbrio cognitivo. A pesquisa foi desenvolvida na trilha autoguiada e interpretativa do Parque Estadual do Guartelá (PEG), município de Tibagi no Estado do Paraná. Os sujeitos da pesquisa foram os indivíduos que visitaram a unidade de conservação (UC) no período de fevereiro, e também, maio a agosto do ano de 2008. Trata-se de uma pesquisa qualitativa com uma metodologia que envolve uma interface da pesquisa-ação com a pesquisa do tipo etnográfica. Utilizou-se como procedimentos para a coleta de informações: um questionário semiestruturado, aplicado aos visitantes em uma intervenção exploratória com a finalidade de diagnosticar a relevância da visita a uma UC; a entrevista não-diretiva direcionada aos visitantes no percurso da trilha; além, da observação com roteiro próprio. Apresenta-se como resultado a potencialidade educativa de uma TI. Quanto aos sujeitos, ficou expresso que os indivíduos que se mostraram mais sensibilizados com o ambiente também não ultrapassaram a centração no processo de construção do conhecimento. Já os sujeitos que problematizaram as características do ambiente mostraram um esforço de descentração. Com esta investigação foi possível concluir que as atividades promovidas durante as intervenções, possibilitaram a percepção do visitante na TI. O desequilíbrio cognitivo apresentado por alguns dos sujeitos fez com que estes estivessem mais suscetíveis a aprendizagem.
PATELL, MORAWALA VILLOO. "Structure et expression du gene codant pour la sous-unite 2 de la nadh deshydrogenase de mitochondrie de ble : cis- trans-epissage et edition de l'arn messager." Université Louis Pasteur (Strasbourg) (1971-2008), 1993. http://www.theses.fr/1993STR13040.
Full textGalactéros-Luchtenberg, Caroline. "Analyse critique de la gestion des crises balkaniques de l'après-guerre froide." Paris 1, 2001. http://www.theses.fr/2001PA010317.
Full textRaflik, Jenny. "Les décideurs français et l'Alliance atlantique, 1947-1954." Paris 1, 2006. http://books.openedition.org/pur/114164.
Full textSchorung, Matthieu. "Le transport ferroviaire de passagers aux Etats-Unis entre conflictualités institutionnelles, processus de territorialisation et ancrage métropolitain." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2016/document.
Full textThe subject of this research is intercity passenger rail transportation in the United States, approached from two perspectives: Amtrak’s traditional rail services and high-speed rail projects. The aim is to understand the workings of public rail transportation policies, what they contain, and how they are developed and pursued by the different actors. The originality of the research lies in its multiscale approach, with a constant back-and-forth between the different scales of analysis, and in its use of several case studies to analyze the territorialization of intercity rail transportation policies. The analysis demonstrates the emergence of a bottom-up approach to projects, notably apparent in the Californian HSR project and in the modernization of the Cascades corridor. This process has even gone to the extreme with the proliferation of private rail projects that stress their independence from government, be it in decision-making, governance, or funding. This seems definitively to preclude any attempt to establish a national framework for high-speed rail, like those found elsewhere in the world, regardless of party-political considerations, i.e. the traditionally greater enthusiasm of the Democratic Party for large-scale federal investment. Two conclusions emerge: first, the development of uniform arguments and recommendations to encourage new rail policies, emphasizing the structuring effects and economic role of high-speed rail, congestion reduction, modal shift; second, a tangible though uneven pro-rail position among public actors at all levels. Priority is placed on improving and modernizing existing corridors for the launch of higher-speed services, and then on hybrid networks that combine different types of infrastructures. There are no publicly backed projects for new lines exclusively dedicated to high-speed rail. Most of the high-speed corridors are in fact “higher-speed” corridors, some of which are intended to become high-speed at some time in the future, such as the Northeast corridor. The territorialization of rail projects entails the design and construction of transportation networks that are more integrated – at least in terms of service provision and physical connection – and genuinely interconnected. After analyzing projects for the upgrading of higher-speed corridors and the construction of new infrastructures, we note the importance of stations and the emphasis on the need for better coordination between transportation and urbanism through support for station districts. Indeed, a rail corridor project – situated at the intersection of political, economic, technical, and territorial interests – is the nucleus of a process of territorialization that materially embeds the infrastructure within urban spaces, and of a process of politicization through the involvement of local actors. Rail projects seem to be an instrument that leads to the implantation of metropolitan scale facilities (stations, intermodal hubs) and to the shaping or reshaping of the urban fabric (station districts, larger-scale district regeneration projects)
Freissinet, Caroline. "Recherche de traces de vie extraterrestre : élaboration d'une unité d'extraction et d'analyse chirale pour la séparation énantiomérique in situ de molécules organiques d'intérêt exobiologique." Phd thesis, Ecole Centrale Paris, 2010. http://tel.archives-ouvertes.fr/tel-00615481.
Full textFetais, Abdulmehsen. "Le cadre juridique des investissements directs étrangers au Qatar : mise en perspective avec les législations des Emirats Arabes Unis, de l'Egypte et de la Tunisie." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01D025.
Full textThe evolution of international economic activities since the end or the Second World War resulted in the development of international trade law. Qatar's objective is to fully integrate the modernity of foreign direct investment law by providing a secure framework for capital holders while maintaining its cultural and legal identity. Qatar's willingness to escape oil dependence and allow its people to benefit from the positive effects of investment is a major challenge for the country's future, especially in the lace of fluctuating oil prices since 2014, $ 100 to $ 50. Comparison with other Arab countries allows us to position Qatar more precisely on the world stage. FDI policies in Qatar. Egypt, Tunisia and the United Arab Emirates show that the reception and control of foreign capital flows serve different purposes. The establishment of a very liberal investment regime that is very favorable to foreign investors in Egypt responds more to conditions imposed by international institutions (the IMF) against obtaining loans or reducing debt. In Tunisia, despite a commitment to an important policy of liberalization and integration into the European area, the economy has not modernized sufficiently and has foiled to transform into higher value-added activities. Finally, the comparison with the United Arab Emirates is much more relevant because the two countries have more similar economies and work within the Gulf Cooperation Council
Spátayová, Monika. "Ochrana spotřebitele v dopravě." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-76842.
Full textHatto, Ronald. "Le partage du fardeau de la sécurité transatlantique : les relations franco-américaines à l'épreuve de la guerre en ex-Yougoslavie (1991-1995)." Paris, Institut d'études politiques, 2005. http://www.theses.fr/2005IEPP0035.
Full textThe dissertation examines the burden-sharing arrangement inside the Transatlantic Alliance. Its focus is on the Franch-American relationship during the four years of the war in the former Yugoslavia. If France had some success in bringing its American ally at its sides, thanks to the constraint of alliance effect, it was a half-tone success. Once involved the United-States took the lead leaving aside its allies, including France which was the main contributor of the international community's effort to end the conflict
Caron-Scarulli, Fanny. "De l'orature ancestrale à la littérature contemporaine des Dakotapi et des Paiwan : histoire(s) de résilience trans-autochtone." Thesis, Aix-Marseille, 2020. http://www.theses.fr/2020AIXM0037.
Full textThis dissertation provides a trans-indigenous study of North America’s Dakotapi and Taiwan’s Paiwan’s ancestral oratures and contemporary literatures. The Dakotapi are a well-known People popularized by dominant societies, whereas the Paiwan are amongst the most unknown indigenous populations, and their literature remains in the margins of current scholarly studies. It will allow the creation of methods of analysis and the establishment of some form of literary dialogue between them, in order to highlight the similarities and the differences of the oral and written production considered within their own continental situation. The differentiated acculturation processes targeting the Dakotapi and the Paiwan, of the American colonial power on one hand, and on the other hand of the Japanese and Chinese colonial powers, all had a violent impact on the culture and identity of these Indigenous Peoples. However, just as the heroes and heroines from their respective oratures, the young literate indigenous adults, who graduated from American and Taiwanese governmental schools, diverted the graphic skills and the symbolic power of the colonizer to write down their own (hi)stories. This research also stresses the crucial place that Indigenous literatures occupy on the global literary scene, by means of Indigenous-centered genres and themes, and self-referential critique and theories. These are literatures of resilience that draw their references, themes, and paradigms in their own Indigenous cultures, that were reclaimed by engaging in a reconquest of their tribal identity and sovereignty
Graneß, Henry. "Raupenfahrzeug-Dynamik." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235012.
Full textMjörnman, Jesper, and Daniel Mastell. "Randomness as a Cause of Test Flakiness." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177303.
Full textLalève, Anaïs. "Impacts biochimiques et biologiques de mutations dans le gène sdhB codant la sous-unité B de la succinate déshydrogénase chez le champignon phytopathogène Botrytis cinerea." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112077.
Full textSuccinate dehydrogenase is both a key enzyme of the TCA cycle, oxidizing succinate into fumarate and complex II of the mitochondrial respiratory chain involved in electron transfer and ubiquinone reduction. Inhibitors of this enzyme (SDHIs) have been developed or are in the developmental process as fungicides. Actually, SDHIs are registered to deal with Botrytis cinerea, a phytopathogenic fungus responsible for grey mold on many crops including grapevine. Strains of B. cinerea and other pathogenic fungi have been isolated for their resistance to SDHI. They mainly harbor mutations in genes encoding SDH subunits. During this thesis, we studied the impact of mutations modifying subunit B of succinate dehydrogenase on enzyme activity, fungal biology and resistance to SDHIs. “Isogenic” mutants obtained through site-directed mutagenesis and homologous recombination allowed us to confirm the role of sdhB mutations in SDHIs resistance. Our results also show that the substitutions in the SdhB subunit impact respectively the affinity of SDHIs to SDH and the inhibition levels of SDH activity by inhibitors, which explain – in fine – the resistance spectra observed for the mutants. Up to now, all sdhB mutants are resistant to boscalid and the most frequent mutants observed in grapevines, sdhBH272R/Y, are susceptible to fluopyram. Studies on sdhB mutants reveal that the mutations also impact the enzymatic activity and the fungal development depending on the substitution. In particular, sdhBH272L/R mutations have the strongest impact on enzyme activity and the fitness of the fungus, whereas these parameters are almost not altered in the sdhBH272Y mutant. Finally, grey mold populations from different origins (country, plant host) were analyzed for their SDHI resistance pheno- and genotypes. Yet, the sdhBH272R/Y mutants were the most frequent, but these frequencies varied according to the agronomical situation. Interestingly, the frequencies of the sdhBH272R mutant seem to increase with the selective pressure exerted by fungicides. This mutant is of particular interest because of the absence of correlation between the fitness we measured and the frequencies we observed in natura
Vinet, Guy. "L'OTAN et les relations euro-américaines 1989-2003." Paris 1, 2008. http://www.theses.fr/2008PA010305.
Full textVašová, Martina. "Transevropské sítě (TEN) a Public-Private Partnership (PPP)." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-81581.
Full textCantin, Marie-Hélène. "Entre droit et politique : le concept de délégation internationale et le règlement des différends commerciaux canado-américains en matière de droits antidumping et compensateurs sous le chapitre 19 de l'ALÉ et de l'ALÉNA." Doctoral thesis, Université Laval, 2013. http://hdl.handle.net/20.500.11794/24609.
Full textDurelle-Marc, Sarah. "La personnalité juridique internationale et l'identité de l'Union européenne." Rennes 1, 2011. http://www.theses.fr/2011REN1G016.
Full textEuropean Union is a subject of international law due to the explicit recognition of its international legal personality by the Lisbon Treaty. This quality has long been refused to the Union, even though it is the indispensable legal support to the emerging identity of the European Union. It allows both the assertion of the Union’s identity on the international scene and, by a boomerang effect, a strengthening of the constitutional identity of the Union. The international legal personality, as legal technique, is indeed the cornerstone of the construction of the European Union as “an ever closer union among the peoples of Europe”. Its political translation through the demonstrations of its identity cannot be enough: it must be a full subject of law to build a European political space in which every citizen will recognize himself. Two successive movements can then be identified: a first movement going from the assertion of the international identity of the European Union and leading to the birth of an implicit legal personality; a second movement rooted in the explicit recognition of international legal personality to the European Union and leading to the affirmation of the particular identity of the Union. The concepts of international legal personality and identity that are each one side of the European Union are not opposed: they are complementary and are reconciled at the end by the Lisbon Treaty in a European Union that proved to be a global and renewed model of integration taking into account all aspects and policies of the entity in a coherent whole contributing to the development of an integrated identity
Goutman, Nadejda. "La Russie et l'OTAN : de l'Acte fondateur à la Déclaration de Rome sur "une qualité nouvelle" de relations (1997-2002)." Paris 4, 2009. http://www.theses.fr/2007PA040168.
Full textThe dissertation is devoted to the evolution of new partnership and cooperation based relations between Russia and NATO since 1997, the year when the basis of their “particular” relationship has been laid. The research shows that after the end of the cold war, one of the first priorites of the european and international politics was to find a strategy of constructive iInteraction, in particular, in the area of security, between the west and the new Russia, embarked on the way of democratic transition. Since the formation of nato-russia relations is still in its making, the analysis of politico-strategic and politico-military aspects of their undulant interaction since 1997 lets, on the one hand, define the key constraining factors preventing the parties from implementing the political will towards building a stable and lasting partnership based on the principles stated in the nato-Russia founding act of 1997. On the other hand, it’s a question of identifying the key stimulants helping Russia and NATO member governments maintain an all-in-all positive vector of interaction, despite the Kosovo crisis of 1999 and the many other major conflicts and divergencies dividing the parties during the covered period (1997-2002)
Mirante-Psaltakis, Fotini Katy. "Les bases militaires des États-Unis et de l’OTAN en Grèce. Équilibres géostratégiques, dynamiques sécuritaires et luttes d’influence en Méditerranée orientale depuis la Guerre froide. : 1947 − 2007." Paris, INALCO, 2011. http://www.theses.fr/2011INAL0024.
Full textThe presence of United States' and NATO's military sites in Greece occurs in the particular context of the cold war because of the East-West confrontation strategy raging on both sides of the Iron Curtain. Right from the end of the World War Two and the advent of a bipolar geopolitical balance of world power struggles, American ambition makes every effort to create a belt of military sites surrounding the Soviet territory, in order to counter the expansionist ambitions of the Soviet system and to reduce the geopolitical influence of the former USSR. Greece, whose integration into the Western sphere of influence is completed by its entry into NATO in 1952, appears to be one of the main links in this geostrategic chain. Consequently the Greek area is in keeping with a spatial domination strategy, applied to the whole Eastern Mediterranean countries and supported by a Greek Turkish and indirectly by a Greek-Cypriot military complementarity. However effectiveness of the NATO's south-east side is weakened by the harmful impact of the dispute between Athens and Ankara. The conflict's vigorous nature leads to an increasing number of substitute coalitions which make the Eastern Mediterranean countries and the tangle of border contentions relations into a satellite. Since the ousting of the Soviet threat, configuration of the regional geostrategic scene shows deep changes, generated by the rise of a new world geopolitical order, itself created by the American military supremacy. Range of tensions in the Middle East, Arab and Caucasian oil transportation in the bosom of Russia, sea traffic control within the Mediterranean strategie crossroads, development of Middle Eastern terrorism and preservation of an optimal regional security are as many major stakes which justify the presence of American military sites in Greece and in its outlying area. But, the evolution of the military and nuclear means, as weil as the increase in the missiles range of action lead to suppose that no geographie position is primordial to reach a target, to ensure a dissuasive strategy and to protect the future of particular interests. Since the end of the cold war, the meaning, the evolution and the moving of American's stakes are strengthening a lasting network of defensive installations in the Eastern Mediterranean, as they imply the deployment of new military sites on border territories : Balkans, Caucasus, Central Asia and Middle East. This will to develop the American strategie space seems to reaffirm the importance of a network military system. .
Tertrais, Bruno. "La stratégie nucléaire de l'OTAN : dissuasion élargie et rôle des armes nucléaires américaines en Europe, 1949-1992." Paris, Institut d'études politiques, 1994. http://www.theses.fr/1994IEPP0037.
Full textThis study offers a comprehensive perspective on the operational aspects of NATO's nuclear strategy, through an analysis of the role of us nuclear weapons in Europe from 1949 to 1992. Preliminary questions concern : the way NATO's strategy has been constructed ; the nature of this strategy ; and the structure of its historical evolution. Part I, "looking for a common doctrine : the dilemmas of extended deterrence", describes the emergence of the concept of tactical use of nuclear weapons, and the difficulties encountered in the alliance to implement a strategy based on a massive recourse to nuclear weapons. Part II, "a solution to the dilemmas ? Flexible response as a modus operandi for extended deterrence" analyses the compromises on which flexible response is based, the way this strategy has been implemented, and the subsequent modifications in NATO's nuclear posture. Part III, "challenge to extended deterrence : NATO's nuclear strategy and the end of the cold war", analyses the consequences of the political upheavals in Europe for NATO's nuclear strategy, and questions the validity of this strategy. In conclusion, the author suggests, in particular, that political will has played a key role in ensuring that NATO's nuclear strategy develops in a coherent fashion. A critical analysis of NATO's nuclear strategy is also included