To see the other types of publications on this topic, follow the link: Respectare.

Dissertations / Theses on the topic 'Respectare'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Respectare.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Fullerton, Kristi. "Respectable Woman." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1459261307.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Armant, Vincent. "Diagnostic distribué de systèmes respectant la confidentialité." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00763370.

Full text
Abstract:
Dans cette thèse, nous nous intéressons à diagnostiquer des systèmes intrinsèquement distribués (comme les systèmes pairs-à-pairs) où chaque pair n'a accès qu'à une sous partie de la description d'un système global. De plus, en raison d'une politique d'accès trop restrictive, il sera pourra qu'aucun pair ne puisse expliquer le comportement du système global. Dans ce contexte, le challenge du diagnostic distribué est le suivant: expliquer le comportement global d'un système distribué par un ensemble de pairs ayant chacun une vision limitée, tout comme l'aurait fait un unique pair diagnostiqueur ayant, lui, une vision globale du système.D'un point de vue théorique, nous montrons que tout nouveau système, logiquement équivalent au système pair-à-pairs initialement observé, garantit que tout diagnostic local d'un pair pourra être prolongé par un diagnostic global (dans ce cas, le nouveau système est dit correct pour le diagnostic distribué).Nous montrons aussi que si ce nouveau système est structuré (c-à-d: il contient un arbre couvrant pour lequel tous les pairs contenant une même variable forme un graphe connecté) alors il garantit que tout diagnostic global pourra être retrouvé à travers un ensemble de diagnostics locaux des pairs (dans ce cas le nouveau système est dit complet pour le diagnostic distribué).Dans un souci de représentation succincte et afin de respecter la politique de confidentialité du vocabulaire de chacun des pairs, nous présentons un nouvel algorithme Token Elimination (TE), qui décompose le système de pairs initial vers un système structuré.Nous montrons expérimentalement que TE produit des décompositions de meilleurs qualité (c-à-d: de plus petites largeurs arborescentes) que les méthodes envisagées dans un contexte distribué. À partir du système structuré construit par TE, nous transformons chaque description locale en une Forme Normale Disjonctive (FND) globalement cohérente.Nous montrons que ce dernier système garantit effectivement un diagnostic distribué correct et complet. En plus, nous exhibons un algorithme capable de vérifier efficacement que tout diagnostic local fait partie d'un diagnostic minimal global, faisant du système structuré de FNDs un système compilé pour le diagnostic distribué.
APA, Harvard, Vancouver, ISO, and other styles
3

Lasne, Anne-Cécile Gisèle. "Conception de revêtement antifouling supramoléculaires respectant l'environnement." Lorient, 2011. http://www.theses.fr/2011LORIS236.

Full text
Abstract:
Les polyanhydrides sont des polymères biodégradables largement utilisés principalement dans le milieu biomédical. La biocompatibilité des produits de dégradation ainsi que leur érosion de surface en font de bons candidats pour la formulation de peintures antifouling. Mais, leur faible solubilité et leur haute température de fusion limite les applications dans le domaine environnemental. Une nouvelle stratégie de formulation à partir d’oligomères a donc été mise au point. Cette étude a consisté en la conception et la caractérisation de films à partir d’oligomères de polyanhydrides. La cohésion des films est maintenue à partir de liaisons faibles. De plus, une influence de la polarité et de la volatilité du solvant de formulation sur la nature et la force des liaisons faibles a été constatée. La mise en évidence de ces interactions a été réalisées à partir de techniques complémentaires telles que la viscosimetrie capillaire, la spectroscopie infra-rouge, la microscopie à lumière polarisée ainsi que la diffraction de rayons X. L’effet de ces interactions, ainsi que l’influence de facteurs environnementaux (pH, salinité), sur la dégradation et l’érosion des films, à également été étudié. Leur comportement a été analysé en immersion à l’aide de la coulométrie Karl Fisher, chromatographie liquide haute performance, microscopie électronique à balayage, microscopie confocale à balayage laser. Bien qu’un effet des liaisons sur la cinétique d’érosion ait été constaté, les polyanhydrides sont trop erodables pour être utilisé comme liant des peintures antifouling<br>Polyanhydrides are well-known biodegradable polymers. Their surface-eroding properties in aqueous media make them desirable for the controlled release of bioactive molecules as drugs and functional tissue substitutes. Their main advantages are the adjustability of degradation and release rates, the zero order kinetics of release and biocompatibility. However, their low solubility in common organic solvents and their high melting points limit their potential applications, especially in environmental fields. This is the reason why new strategies of formulation need to be considered to enlarge the use of polyanhydrides and overcome their main disadvantages. The purpose of this study was to evaluate the potential of anhydride oligomers as film-forming matrices. The use of oligomers cleared up many difficulties of synthesis (which is long, extended and tedious), stability and solubilization. Covalent bonds were replaced by weak interactions to preserve cohesion between molecules and obtain film properties. Coating characterization was carried out by nuclear magnetic resonance and electrospray ionization to obtain chemical structures of the products. The formation of weak interactions, which confer cohesion between chains, allowed film properties to be observed. The impact of the solvent polarity on the specific organization was investigated by a combination of focused methods: capillary viscosimetry, IR spectroscopy, polarized light microscopy and x-ray diffraction. Oligomer coating being designed to using in marine environment, hydration and erosion studies was performed. Water uptake was carried out from Karl Fischer Coulometry with different water condition (pH and salinity). Hydration was also studied from CLSM and SEM to evidence the erosion zone. Finally degradation was carried out from weight loss, HPLC with the monomer release and from SEM with the observation of coating surface. Although an effect of interaction was observed on erosion kinetic, polyanhydrides are so erodible to antifouling paint application
APA, Harvard, Vancouver, ISO, and other styles
4

Assael, Brenda. "The circus and respectable society in Victorian Britain." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0026/NQ33892.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bell, Beverly W. "Preschoolers' attitudes toward their respective early childhood programs /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487261553058381.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Williams, Matthew G. (Matthew Graham) Carleton University Dissertation Law. "Canadian youth justice: moral panic or respectable fears?" Ottawa, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Nickerson, Winston. "Business process improvement methodologies : common factors and their respective efficacies." Thesis, University of Gloucestershire, 2014. http://eprints.glos.ac.uk/2068/.

Full text
Abstract:
Business process improvement (BPI) methodologies play an important role in increasing a business’s performance and its competitiveness. Since World War II, a number of these methodologies have been developed. Each of these held to a different philosophy as to what drives process improvement. Therefore, each focused on a seemingly unique aspect or parameter of business processes. These leverage points included, amongst others, process cycle time, quality, process efficiency, on-time delivery and error rates. The methodologies were delineated from one another not only by these focal points but also the terminology, structure and emphasis used by their creators. The result was a spectrum of seemingly unique approaches. This spectrum was enlarged by practitioners (consultants and businesses) who tweaked the base methodology so as to make their product offerings stand out. This palette of business improvement approaches was further augmented by certain techniques, tools and methods being presented as complete methodologies. The result was that business managers are confronted with a seemingly confusing array of ostensibly unique options. The author, being a business process improvement consultant, felt that these options were not as unique as they might appear. He believed that beneath these individualistic exteriors lays a common set of factors that enable the methodologies to bring about sustainable improvements. Therein lays the theoretical framework of this thesis. The author further felt that identifying these common key factors and their respective importance to business process improvement would contribute significantly to both knowledge and practice. Upon completing the research, it became evident that the contribution was not just limited to the enlightenment regarding composition, commonality and efficacy. It also involved ways of delineating targets such as methodologies from a chaotic population. Most importantly, a significant contribution to knowledge was made by showing how to synthesize information out of a set of seemingly unique data points. This uniqueness having been created by the different terminologies structures and emphasises found in the evidence. In the thesis, four unique challenges were encountered. The first was to identify the current, core business process improvement methodologies out of the total field of offerings. The subsequent challenge was to analyse these methodologies for possible common constructs and components. The third challenge involved evaluating the efficacy of these common key factors. The final challenge was to characterize these key factors in the context of a theoretical, model-based methodology. The intended result was to create a holistic perspective of process improvement practices with justification at the constituent level. A lengthy literature review was required in order to identify the current methodologies. Surprisingly, the sources normally rich in research evidence such as journals and articles did not give a comprehensive overview of business process methodologies. The candidates had to then be further researched via books and other lengthy publications. The end result was that six unique and sustaining families of methodologies were identified during the systematic literature review. Each of these had been developed by a different business improvement innovator using a different orientation associated with the methodology’s core philosophical position. It appears that, for marketing reasons, each had strived to develop unique selling points and intellectual property that set their methodology apart from the others. As a result, the language, style and emphasis applied in each methodology were seemingly distinctive. These conditions made further analysis for commonality of key factors amongst the six methodologies difficult and time-consuming. Further research involved analysing the six BPI methodologies and synthesizing qualitative evidence in order to identify the key factors common amongst those methodologies. Again, journals and articles played only a minor role in this activity. For the most part, these sources focused more on application than on composition. In addition, those dealing with application of the methodologies tended to avoid justifying applicability in terms of critical composition factors. Other sources such as books provided a framework for the composition analysis but with significant voids and confusing entries. Therefore, in addition to the series of literature reviews, interviewing intellectual property owners and BPI practitioners from both business and consulting firms was necessary. Once the interviewing process had closed the gap and provided clarification of entries, a research method had to be found which could extract the common factors and make them apparent. The appropriateness of various research, analysis and synthesis approaches were reviewed and evaluated. As a result of this ancillary literature review, a form of reciprocal translations was viewed as the best means of dealing with the research evidence as well as the issues of languages, styles, cultures and subjectivity. The final results of the synthesis, after a follow-up round of literature reviews and interviewing, showed that 12 common key factors existed amongst the six BPI methodologies. Research into the efficacy of these 12 common key factors required yet another series of literature reviews and additional interviewing. Due to the nature of the topic, interview respondents outside of the business process improvement community also had to be included. Those respondents included individuals from human resource and industrial psychology disciplines. The result of this descriptive research enabled characterization of the key factors’ efficacies independently as well as holistically in the context of a theoretical, model-based methodology. These characterizations indicate that the 12 key factors appear to form the backbone of BPI methodologies in general. The research process and its findings have contributed to both knowledge and practice. It has provided insight into using a holistic approach in delineating targeted elements of a mixed population. It also contributed to the understanding of how to apply the reciprocal translation technique to qualitative evidence outside the field of ethnography. Additionally, it enables improved business practices by demystifying the various methodologies and furthering the understanding of their value adding components.
APA, Harvard, Vancouver, ISO, and other styles
8

Schwarzkopf, Stefan. "Respectable persuaders : the advertising industry and British society, 1900 - 1939." Thesis, Birkbeck (University of London), 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503589.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Holden, G. G. "Respectable militants : the Lancashire textile machinery makers, c.1800-1939." Thesis, University of Salford, 1987. http://usir.salford.ac.uk/43022/.

Full text
Abstract:
Lancashire's textile machinery industry developed with the mechanisation of its cotton industry, and by 1914 was the leading branch of mechanical engineering in Britain. Throughout this industry's history its artisans retained characteristics of respectability and militancy allied with a strong sense of local independence. (Chapter 1) As the industry expanded in the 1830's and 1840's the artisans fought to retain control over the labour process and maintain economic status in the face of technological change. Meanwhile they maintained a significant and under acknowledged role in the wider labour movement. (Chapter 2) Artisans of the leading firm of Hibbert and Platt were at the centre of the greatest industrial dispute of the mid nineteenth century, the 1852 engineering lock-out. (Chapter 3) The next forty years are seen as the classic period of the 'labour aristocracy' in Britain; the textile machinery artisans provide an excellent case study of this most controversial concept. (Chapter 4) The 1890's brought the unionisation of the industry's less skilled workers by localised 'new unions' and general labour unions, notably the Gas Workers and General Labourers Union. Meanwhile, the Amalgamated Society of Engineers was defeated by the Engineering Employers' Federation in 1898 which began a centrifugal drift of power from the weakened Executive to the branches. (Chapter 5) The inflationary conditions of 1910-14 brought a wave of strikes as artisan control of the labour process was re-asserted. (Chapter 6) The Great War created such demands for armaments that most firms became 'controlled' establishments and commercial work gave way to munitions. The associated problems of dilution led to the serious artisan-inspired strikes of 1917. (Chapter 7) The industry's inter-war decline reflects the decline of its artisans, who in 1920 and 1922 suffered further defeats by the employers and were subsequently obliged to yield in their century long struggle to retain control of the labour process. (Chapter 8).
APA, Harvard, Vancouver, ISO, and other styles
10

Fox, James Martin. "Characterisation of CXCL4 and CCL1 interactions with their respective chemokine receptors." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430464.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Bell, Edward J. L. "Word-graph theory : on the structural characterisation of word-respectable digraphs." Thesis, Lancaster University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.660112.

Full text
Abstract:
A word- graph Gw is a simple digraph associated with a finite word w such that the vertex set of Gw is the alphabet of wand the edge-set of Gw is determined by ~on-identical adjacent letter pairs in w. A family of word-graphs can be thought of as a formal language. The novel theory of word- graphs proposed in this thesis is of interest for two reasons: . first, word-graphs have close links with a range of word-based stochastic processes such as language, music, DNA and protein sequences; second, the cross-applicability of proof techniques in graph theory and combinatorics on words has lead to a recent explosion of interest in the literature in the relationship between words and graphs. The focus of this thesis is on developing a theory of word-graphs by formalising how structural word-theoretic properties manifest in digraphs and how structural graphtheoretic properties manifest in words. The analysis starts by looking at the relationship between word and digraph forms and continues by investigating whether or not a given digraph can be represented by a word or a set of words. The main findings include: representational word and digraph structure is intrinsically linked; every finite digraph can be represented by a finite set of words; and the number of words required to represent a digraph is determined by that digraph's edge-contracted subgraphs. Besides the theory's applications in stochastic process analysis, word- graph theory has the potential to be used as a general methodology for digraph and word theoretic analysis.
APA, Harvard, Vancouver, ISO, and other styles
12

Lindgren, Philip, and Rasmus Wicklund. "Determining Factors that Influence the Botswanian Pula and Their Respective Significance." Thesis, KTH, Matematisk statistik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229666.

Full text
Abstract:
In this study, the Botswanan currency Pula is analyzed and factors affecting the exchange rate between the Pula and the US Dollar are examined. Using a multiple linear regression analysis and the Cochrane-Orcutt transformation, an explanatory model is developed. Factors are chosen based on economic theory and are evaluated empirically through statistical methods. The final model shows that The Botswana Stock Index, The Real Interest Rate Spread between Botswana and USA, Corruption Index, Business Confidence Index, Diamond Price Index and Unemployment Rate, are relevant and significant in determining changes in the exchange rate. Some factors were significant, but had to be removed from the model due to multicollinearity.<br>I den här studien analyseras den botswanska valutan Pula och faktorer som påverkar den. Med hjälp av multipel linjär regression och Cochrane-Orcutt-transformation, utvecklas en modell. Faktorer väljs utifrån ekonomisk teori och utvärderas empiriskt genom statistiska metoder. Den slutgiltiga modellen visar att Botswanas aktieindex, skillnaden i realränta mellan Botswana och USA, korruptionsindex, index för affärsförtroende, diamantprisindex och arbetslöshet är relevanta och väsentliga för att bestämma förändringar i växelkursen. Vissa faktorer var signifikanta, men behövde avlägsnas från modellen på grund av multikollinearitet.
APA, Harvard, Vancouver, ISO, and other styles
13

Sugiura, Lisa. "Respectable deviance? : negotiating the opportunities and risks in online medicine purchasing." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/411143/.

Full text
Abstract:
This thesis explores online medicine purchasing and provides insight into how people account for this activity via the application of the concept of respectable deviance. Drawing together established deviance theories; respectable deviance considers the construction of online medicine purchasing, the justifications presented to challenge how it is labelled, and how the behaviour is managed. Those purchasing medicine online are not necessarily criminalised, however, the behaviour has been constructed as risky. This is because people can buy medicines that traditionally require prescription from registered practitioners. These new opportunities to purchase illicit medicines have implications for the pharmaceutical marketplace, regulation and governance, and healthcare expertise. The specific risks associated with online medicine purchasing, namely counterfeit medicines, criminal activity, and health implications, merge with the challenges to the marketplace, the challenges to regulation and governance, and the challenges to healthcare expertise. People purchasing medicines online acknowledge these ‘risks’, and redefine them in terms of justifications. Utilising an interpretivist mixed- methods study encompassing forum observations, online survey, and interviews, this research allows an understanding into how those engaging in‘risky’ behaviour breaking with accustomed practices (i.e. purchasing prescription/unauthorised medicine online), manage their performances with techniques of neutralizations, specifically challenging governance and medical expertise. At the same time, as the Web provides a space for deviance, it also provides a space for people to manage how their actions are perceived. Respectable deviance highlights how people respond to the unique risks and opportunities afforded in online medicine purchasing.
APA, Harvard, Vancouver, ISO, and other styles
14

Mamfoumbi-Ocloo, Jean-Marcel. "Estimation de canaux de transmission respectant un modèle d'évolution temps/fréquence." Paris 11, 2006. http://www.theses.fr/2006PA112072.

Full text
Abstract:
Le but de cette thèse est de proposer des méthodes d'estimation de canal dans un contexte de transmission sans fils pour la norme IEEE802. 11a. Cette norme fait appel aux techniques de transmission muliporteuses ou OFDM. Notre approche se situe dans ce cadre précis et bénéficie des avatanges de ces techniques. Nous proposons, dans un premier temps, un nouveau modèle de canal constant par morceaux qui permet non seulement d'augmenter le nombre d'observations servant à estimer un paramètre mais aussi de réduire le nombre de coefficients à estimer. La prise en compte de ce modèle dans la procédure de l'algorithme EM ("Expectation-Maximization") fournit un algorithme, dont la complexité est rendue linéaire, maximisant la vraisemblance et qui présente des performances satisfaisantes. Nous avons ensuite proposé une version MAP de cet algorithme qui prend comme modèle d'évoultion du canal la sortie d'un filtre autorégréssif. L'algorithme obtenu améliore considérablement les performances mais sa complexité devient importante. La dernière partie de ce travail a consisté à proposer une méthode maximisant la probabilité a posteriori mais qui soit de complexitélinéaire en s'assurant que les ponitx fixes de l'algorithme proposé sont exaxtement les mêmes que ceux de la version MAP originale. La convergence des algorithmes proposés a été établie<br>The aim of this work is to propose channel estimation methods in the context of wireless transmission for the IEEE802. 11a standard. Multicareers technics (OFDM) have already been accepted in such standards. Our approach is in the framework of multicareers systems and takes advatange of these techniques. We propose, in a first time, a new channel model which is piecewise constant. This model permits to increase the observations being used to estimate a given parameter and also to reduce the number of channel coefficients which must be estimated. The introduction of this model in the EM (Expectation-Maximization) algorithm procedure provides an algorithm which maximizes the likelihood and the arithmetical complexity is turned from exponential to linear. The performances of this new algorithm are satisfactory. Then, we propose a Maximum a posteriori (MAP) version which takes into account the output of an autoregressive filter as a channel evolution model. The resulting algorithm improves performances significantly but its complexity becomes important. The last part of this work consists in proposing a method maximizing the a posteriori probability with a linear arithmetical complexity. The proposed method has the same fixed points than the original MAP algorithm and the convergence of these algorithms is established
APA, Harvard, Vancouver, ISO, and other styles
15

Sellier, Pierre-Olivier. "Pleuresies purulentes : place respective du traitement par thoracoscopie ou ponction lavage." Aix-Marseille 2, 1994. http://www.theses.fr/1994AIX20853.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Durbet, Axel. "Une approche cryptographique des systèmes d'authentification biométrique respectant la vie privée." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0113.

Full text
Abstract:
L'objectif du projet de thèse est de répondre au maximum au projet PRIVABIO. Ainsi, nous allons chercher à résoudre ou atténuer les problèmes de sécurité et de respect de la vie privée dans l'utilisation de la biométrie. Pour ce faire, nous proposerons des protocoles peu coûteux avec des garanties de sécurité proportionnelles à la grande sensibilité de ces données personnelles. Le projet va se dérouler selon 4 axes : 1/ Évaluer la sécurité des schémas de protection des gabarits biométriques (BTP) et des protocoles biométriques. 2/ Fournir des schémas BTP plus sûrs sans dégrader la précision de la reconnaissance, et sans compromettre leur utilisabilité sur des appareils aux ressources limitées. 3/ Identifier les mécanismes cryptographiques présentant un intérêt pour la protection de la vie privée. 4/ Intégrer les mécanismes biométriques et cryptographiques dans les protocoles d'authentification multifactorielle ainsi que dans les protocoles d'identification, en fournissant des garanties de sécurité formelles<br>The aim of this thesis project is to address as fully as possible to the PRIVABIO project. Thus, we will seek to solve or mitigate security and privacy issues in the usage of biometrics. To do so, we will propose low-cost protocols with security guarantees proportional to the high sensitivity of such personal data. The project will focus on 4 areas: 1/ Assess the security of biometric template protection (BTP) schemes and biometric protocols. 2/ Provide more secure BTP schemes without reducing recognition accuracy, and without compromising their usability on devices with limited resources. 3/ Identify cryptographic mechanisms of interest for privacy protection. 4/ Integrate biometric and cryptographic mechanisms into multi-factor authentication and identification protocols while providing formal security guarantees
APA, Harvard, Vancouver, ISO, and other styles
17

Cross, Cierra. "Determination of Atrazine and Selected Respective Metabolites Using Strong Cation Exchange Resins." TopSCHOLAR®, 2005. http://digitalcommons.wku.edu/theses/495.

Full text
Abstract:
A new solid phase extraction procedure (SPE) for the removal of atrazine and three respective metabolites including deisopropylatrazine, desethylatrazine, and didealkylatrazine from aqueous samples is presented. Octadecyl bonded silica (C18) is widely used in analytical preconcentration schemes. While C18 presents a facile method of analyte removal, a new approach is needed to achieve greater trapping for polar analytes. In this study strong cationic exchange (SCX) resins consisting of sulfonated polystyrene are investigated for their extraction capabilities of the selected analytes. By exploiting acid-base and pi-pi interactions the analytes are trapped and therefore extracted from aqueous samples. Salt solutions are used to remove these analytes through cation exchange from the sorbent. Percent recovery of atrazine and its metabolites was determined by high performance liquid chromatography. Comparison of SCX resins to commercially available Clg resin was determined to assess the benefits of this novel technique. Strong cation exchange resins investigated include SCX-2, Dowex 50WX2- 400, Dowex 50WX4-400, and Dowex 50WX8-400.
APA, Harvard, Vancouver, ISO, and other styles
18

Brydon, Thomas Robert. "Christ's last ante: Charles Booth, church charity and the poor-but-respectable." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18757.

Full text
Abstract:
The social statistician, Charles Booth, the ministers of London's churches, chapels and missions, the thousands of churchwomen, and the working classes of London, all had one thing in common in 1900: their strong sense of insecurity. The unpublished notebooks of Charles Booth's “Religious Influences” archive, the third part of his influential inquiry Life and Labour of the People in London (1889-1903), tell us that in response to this insecurity all found stability in a moral-religious ideology. This is the first dissertation to employ this archive in its entirety. Booth employed this moral ideology to divide the metropolitan working class into respectable and unrespectable citizens. He recommended the authoritarian solution of the labour colony for the latter. Churchmen and women social workers constructed their own religious and scientific hybrid for social work among the poor, and women made an equally strict effort to divide needy from needy. Both religious scientist and scientific religionist called their ideology misleading names. Booth called his “scientific” social work. Churchmen and women called theirs a Christian ideology of love and brotherhood with the poor. In practice, both meant the moral segregation of poor people, specifically in the field of charity, and their ideology had evangelical roots. The great contribution of Booth's Life and Labour survey was to reveal that poor working people in the metropolis saw themselves not as a working class, nor as “rough” and “respectable” classes, but as part of a poor-but-respectable hierarchy. Their lives were characterized by a self-perpetuating round of social, economic and behavioural self-discipline on the one hand, and psychological and emotional release on the other. The extraordinary frankness of the private testimonies of over 1800 metropolitan personalities reveals to us a middle class obsessed with the moral segregation of working people, and – in contrast to much social history<br>Au début du 20e siècle, le démographe Charles Booth, les ministres des églises, chapelles et missions de Londres, les milliers de paroissiennes charitables et les ouvriers de Londres ont tous un trait en commun : une immense insécurité. Les carnets inédits de Charles Booth sur les influences religieuses, qui forment la troisième partie de son enquête magistrale intitulée Life and Labour of the People in London (1889-1903), nous apprennent qu'en réponse à cette insécurité, tous se raccrochent à une certaine idéologie morale et religieuse. La présente dissertation réfère pour la première fois à l'ensemble des archives. Booth se sert de son idéologie morale pour diviser la classe ouvrière de la capitale en citoyens respectables et non respectables et, pour ces derniers, recommande d'autorité les colonies de travail. Ecclésiastiques et travailleuses sociales appliquent leur propre mélange de religion et de science pour venir en aide aux indigents, pendant que les âmes charitables s'efforcent avec non moins de rigueur de distinguer les démunis d'entre les démunis. Le scientifique religieux et le religieux scientifique commettent la même erreur d'appellation en parlant de leur idéologie. On voit Booth qualifier son travail social de « scientifique ». Clergé et paroissiennes parlent quant à eux d'un idéal chrétien fondé sur l'amour du prochain et la solidarité. En pratique, tous opèrent la même ségrégation à l'égard des pauvres, spécialement dans le domaine de la charité, et leur idéologie a ses racines dans l'évangélisme. La grande contribution de l'enquête de Booth sera de démontrer que les ouvriers de la métropole ne se perçoivent pas comme une classe ouvrière, ni même comme une classe de gens « rudes » mais « respectables », mais plutôt comme constituant une hiérarchie sociale pauvre-mais-respectable. Leur vie se caractérise par la ronde sans cesse renouvelée de l'autodiscipline sociale, économique et$
APA, Harvard, Vancouver, ISO, and other styles
19

Masood, Sobia. "Intimate partner violence : childhood exposure and respective attitudes among Pakistani young adults." Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/65226/.

Full text
Abstract:
The present research attempted to explore Pakistani young adults’ exposure to intimate partner violence (IPV) during childhood, its impact on their attitudes towards IPV, and the role of risk and protective factors. Drawing on feminist intersectionality, gender specific social learning and resiliency approaches within an overall feminist framework, a mixed methods research design i.e., sequential explanatory design, was used. The study consisted of two parts – a survey (with quantitative and qualitative data) and in-depth interviews. The survey included a sample of 1,046 young adults (aged between 18-25 years; males=483; females=563) from higher education institutions in Pakistan. In-depth interviews were based on a sub-sample of the survey sample with exception of one and included 25 young adults (males=13; females=12) who have reported of living with IPV since their childhood. Controlling for social desirability bias, the results revealed alarming prevalence rates of exposure to IPV, and a significant relationship between IPV exposure and other forms of victimization. A significant positive, but weak, relationship emerged between IPV exposure and favourable attitudes to IPV, and the findings show that a complex interaction of factors influence this relationship including: exposure to violence in the community and media; mother’s education; involvement in IPV; risk factors; and other forms of victimization appeared in a mediating or moderating role. The findings from in-depth interviews validated the survey findings and highlighted three main categories of themes. Each category consisted of two themes and further sub-themes. Young adults perceived the impact of exposure to IPV on their emotional health, perception of self, father-child relationship, and social relations. They talked about their struggle to cope and identified: inbuilt resilience; religiosity; familial support, especially their relationship with their mothers; education and extra-curricular activities as sources of motivation and protective factors. They envisioned change by stressing the need to develop societal-level, parent-focused and child and young person focused strategies to eradicate the issue and help people affected by IPV.
APA, Harvard, Vancouver, ISO, and other styles
20

Da, silva Simon. "Diffusion Vidéo avec une Meilleure Qualité d'Expérience et Respectant la Vie Privée." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0140.

Full text
Abstract:
La diffusion vidéo devrait atteindre 82% du trafic total sur Internet en 2022.Il y a deux raisons à ce succès : la multiplication des sources de contenu vidéo et la démocratisation des connexions haut débit à Internet.Les principales plateformes de streaming vidéo dépendent d'infrastructures planétaires pour répondre à la demande croissante en qualité visuelle.Cependant, l'utilisation de ces plateformes génère des données personnelles sensibles (sous la forme d'historiques de visionnage).Protéger les intérêts des utilisateurs est nécessaire pour une nouvelle génération de services de streaming vidéo respectueux de la vie privée.Cette thèse propose une nouvelle approche pour du streaming vidéo temps-réel multi-sources en délivrant du contenu avec une meilleure qualité d'expérience (délai de démarrage rapide, flux stable en haute qualité, pas de coupures) tout en permettant une protection de la vie privée (grâce aux environnements d'exécution de confiance)<br>Video streaming is expected to exceed 82% of all Internet traffic in 2022.There are two reasons for this success: the multiplication of video sources and the pervasiveness of high quality Internet connections.Dominating video streaming platforms rely on large-scale infrastructures to cope with an increasing demand for high quality of experience and high-bitrate content.However, the usage of video streaming platforms generates sensitive personal data (the history of watched videos), which leads to major threats to privacy.Hiding the interests of users from servers and edge-assisting devices is necessary for a new generation of privacy-preserving streaming services.This thesis aims at proposing a new approach for multiple-source live adaptive streaming by delivering video content with a high quality of experience to its users (low start-up delay, stable high-quality stream, no playback interruptions) while enabling privacy preservation (leveraging trusted execution environments)
APA, Harvard, Vancouver, ISO, and other styles
21

Ishikawa, Chiaki. "From Respectable to Pleasurable: Companionate Marriage in African American Novels, 1919-1937." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376984492.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Goron, Michael. "’Respectable capers’ : class, respectability and the D’Oyly Carte Opera Company 1877-1909." Thesis, University of Winchester, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698080.

Full text
Abstract:
This thesis will demonstrate ways in which late Victorian social and cultural attitudes influenced the development and work of the D’Oyly Carte Opera Company, and the early professional production and performance of the Gilbert and Sullivan operas. The underlying enquiry concerns the extent to which the D’Oyly Carte Opera organisation and its work relate to an ideology, or collective mentalite, maintained ad advocated by the Victorian middle-classes. The thesis will argue that a need to reflect bourgeois notions of respectability, status and gender influenced the practices of a theatrical organisation whose success depended on making large-scale musical theatre palatable to ‘respectable’ Victorians. It will examine ways in which managerial regulation of employees was imposed to contribute to both a brand image and a commercial product which matched the ethical values and tastes of the target audience. The establishment of a company performance style will be shown to have evolved from behavioural practices derived from the absorption and representation of shared cultural outlooks. The working lives and professional preoccupations of authors, managers and performers will be investigated to demonstrate how the attitudes and working lives of Savoy personnel exemplified concerns typical to many West End theatre practitioners of the period, such as the drive towards social acceptability and the recognition of theatre work as a valid professional pursuit, particularly for women. The notion of a ‘circularity of influence’, in which cultural production is regarded as both a result and a reinforcement of ideology, will be proposed to explain the cultural ubiquity of the Savoy Operas in the middle-class consciousness, during and after their initial West End success.
APA, Harvard, Vancouver, ISO, and other styles
23

Persaud, Suresh Chand. "Japan's Import Demand for Soybeans, Rapeseed, and their Respective Meals and Oils." Connect to resource, 1998. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1217870279.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Joram, Frédéric. "Les opérations de paix et l'obligation de respecter le droit international humanitaire." Paris 2, 2007. http://www.theses.fr/2007PA020069.

Full text
Abstract:
L'objectif de cette étude est de déterminer si, dans quelle mesure et selon quelles modalités le droit international humanitaire est applicable aux opérations de paix, c'est-à-dire aux opérations militaires menées par l'ONU ou par des Etats membres sur son autorisation. L'analyse successive de la portée de l'obligation de respecter le droit international humanitaire, de la qualification juridique des opérations de paix en droit international humanitaire et des obligations de l'ONU conduit à affirmer le principe de l'applicabilité du droit international humanitaire aux opérations militaires de sécurité collective. L'application des règles de droit international humanitaire par les forces de paix pose plusieurs questions juridiques et problèmes opérationnels. Les règles de droit international humanitaire applicables diffèrent d'une opération à l'autre, notamment selon que l'opération est placée sous le commandement de l'ONU ou sous celui d'un ou plusieurs Etats autorisés par l'ONU. Outre la responsabilité pénale individuelle de leurs auteurs, les actes des forces de paix engagent la responsabilité internationale des sujets de droit dont relèvent leurs membres. Il peut s'agir, selon le type d'opération et les circonstances des faits en cause, de la responsabilité de l'ONU, des Etats ou de ces deux sujets de droit international simultanément. Enfin, les modalités concrètes de mise en œuvre des dispositions du droit international humanitaire au cours des opérations de paix apparaissent encore perfectibles aujourd'hui, malgré les progrès réalisés récemment, notamment par l'ONU.
APA, Harvard, Vancouver, ISO, and other styles
25

Jiang, Ning. "Kinetic analysis of Fcγ receptor and T cell receptor interacting with respective ligands". Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/26716.

Full text
Abstract:
Low affinity Fcg receptor III (FcgRIII, CD16) triggers a variety of cellular events upon binding to the Fc portion of IgG. A real-time flow cytometry method was developed to measure the affinity and kinetics of such low affinity receptor/ligand interactions, which was shown as an easily operated yet powerful tool. Results revealed an unusual temperature dependence of reverse rate of CD16aTM dissociating from IgG. Except for a few studies using mammalian cell CD16s, most kinetics analyses use purified aglycosylated extracellular portion of the molecules, making it impossible to assess the importance of the receptor anchor and glycosylation on ligand binding. We used a micropipette adhesion frequency assay to demonstrate that the anchor length affects the forward rate and affinity of CD16s for IgG in a species specific manner, most likely through conformational changes. Receptor glycosylation dramatically reduced ligand binding by 100 folds. T cell receptor (TCR) is arguably the most important receptor in the adaptive human immune system. Together with coreceptor CD4 or CD8, TCR can discriminate different antigen peptides complexed with major histocompatibility complex (MHC) molecule (pMHC), which differ by as few as only one amino acid, and trigger different T cell responses. When T cell signaling was suppressed, TCR had similar affinity and kinetics for agonist and antagonist pMHC whose binding to CD8 was undetectable. TCR on activated T cell had a higher affinity for pMHCs, suggesting that TCRs organize themselves differently on activated T cells than on naïve T cells. In the absence of inhibitors for signaling, TCR binds agonist pMHC with several orders of magnitude higher affinity than antagonist pMHC. In addition, engagement of TCR by pMHC signals an upregulation of CD8 binding to pMHC, which is much stronger than the TCR-pMHC binding. The transition from weak TCR binding to the strong CD8 binding takes place around 0.75 second after TCR in contact with pMHC and can be reduced by several inhibitors of tyrosine and lipid phosphorylation, membrane rafts, and actin cytoskeleton. These results provide new insights to understanding T cell discrimination.
APA, Harvard, Vancouver, ISO, and other styles
26

Matheson, C. Suzanne. "The respective functions of text and design in the art of William Blake." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306730.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Whiteside, Heidi Joanne. "'We Shall Be Respectable': Women and Representations of Respectability in Lyttelton 1851-1893." Thesis, University of Canterbury. History, 2007. http://hdl.handle.net/10092/951.

Full text
Abstract:
This thesis investigates the meanings and representations of respectability in Pakeha women's lives in nineteenth-century Lyttelton, New Zealand. Respectability was a form of gendered behaviour connected to ideals of appropriate femininity and women's proper place. It was one of the values on which Lyttelton was founded and respectable women had an important role from the beginning as agents of civilization. However, respectability was not solely a behavioural norm imposed on women and an examination of the forms of respectability in this growing colonial town reveals that women were active agents negotiating and contributing to definitions of respectability. The forms of respectability in Lyttelton were related to the town's character as a busy port, and the associated disorder contributed to divisions between respectable and unrespectable spaces. Women understood and represented respectability in different ways depending on their class position, social status, family responsibilities and involvement in the workforce. Not all women were able to conform to dominant norms of respectability, and others demonstrated an ambivalent commitment to ideals of respectable behaviour. The discourses of respectability in Lyttelton were complex and diverse, illustrating the anxieties and tensions of a migrant community.
APA, Harvard, Vancouver, ISO, and other styles
28

Kalfat, Choukri. "L'application respective des traités et de la loi interne en matière d'extradition passive." Paris 2, 1987. http://www.theses.fr/1987PA021016.

Full text
Abstract:
Le rapport traite-loi en matiere d'extradition passive nous met en presence du probleme central du conflit entre ces deux normes dont la solution indique laquelle des deux est susceptible de recevoir application. Mais la mise en oeuvre du traite ne peut se concevoir que si sa validite, sur le plan de son elaboration, repond a certaines conditions imposees par les dispositions constitutionnelles, parmi lesquelles l'autorisation legislative mal percue dans ses consequences juridiques et dont l'exigence controversee par l'apport des differentes etapes traversees par l'histoire constitutionnelle francaise, demeure l'un des aspects importants. Si une certaine doctrine avait deja manifeste sa predilection pour une solution en faveur de l'autorite des traites internationaux sur la loi interne, cette position va se renforcer par les dispositions constitutionnelles de la quatrieme et de la cinquieme republique. Mais la superiorite des traites doit faire face a certaines limites edictees, soit par les dispositions des constitutions de 1946 et de 1958 qui ont trait a la reserve de reciprocite et au defaut de publication des conventions, soit par les principes generaux du droit dont le non respect de l'ordre public international de l'etat requis constitue l'element majeur, et sans lesquels l'autorite des traites se trouvera infirmee. La divergence entre ces deux normes se manifestera en ce qui concerne le fait incrimine et la personne reclamee. Le present travail fera ressortir des ambiguites afin de souligner les solutions retenues qui selon les cas infirment ou confirment l'autorite du traite sur la loi. Meme si l'article 1er de la loi du 10 mars 1927 prevoit une possibilite de l'application de celle-ci, dans des conditions precises, il n'est pas certain que la jurisprudence les ait largement pratiques. Le traite revendiquera son autorite conformement aux dispositions constitutionnelles dont la jurisprudence du conseil d'etat confirme la tendance.
APA, Harvard, Vancouver, ISO, and other styles
29

Cheikh, Meriam. "Devenir respectable: une jeunesse populaire féminine au prisme de l'économie intime, Tanger - Maroc." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Rusconi, Gloria. "Beauty Without Pity, Ambition Without Remorse: Lucrezia Borgia and Ideals of Respectable Femininity." Kent State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=kent1619440010113221.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Kalfat, Choukri. "L'Application respective des traités et de la loi interne en matière d'extradition passive." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376063072.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Wright, Christine A. "'Really respectable settlers' : Peninsular War veterans in the Australian colonies, 1820s and 1830s." Phd thesis, Canberra, ACT : The Australian National University, 2005. http://hdl.handle.net/1885/9884.

Full text
Abstract:
As the Napoleonic Wars convulsed Europe during the early nineteenth century, many more British young men than ever before became army officers, particularly during the latter part of the conflict, fought in Spain and Portugal between 1808 and 1814. The Peninsular War provided not only employment, but also the opportunity to climb the social ladder. As this thesis will demonstrate, the majority of British army commissions in this period were not purchased, and it was these men who later came to settle in the Australian colonies. After the demobilization of the British army following the battle of Waterloo in 1815, many officers found themselves on half-pay, doing the rounds of government offices seeking colonial positions; some were successful and were appointed to New South Wales. As well, many of those who came to New South Wales in garrison regiments, from 1817 onwards, found the place appealing and decided to settle. These British army officers, and those others who came in the next couple of decades, were a unique group of emigrants because of the skills they brought with them acquired in the army: self-discipline, self-reliance, the knowledge of how to discipline men, reconnaissance and exploring techniques, mapping, survey, engineering, town planning, medical skills and the building of roads and bridges. They were also Protestant, educated, literate and artistic men, and the carriers of British colonizing notions. They arrived at an opportune time to fill key positions in the newly created civil services in New South Wales and Van Diemen's Land. They also took advantage of British government regulations and obtained land grants under favourable conditions, something hitherto unattainable for them in Britain. In any case, it was mutually beneficial for the British Government and the Australian colonies to plant ex-army officers in what was the colony farthest away from Britain. Also revealed are the social networks created by Peninsular War veterans on the other side of the world, and their influence in the Australian colonies. These networks made an impact on the exercise of the law, marriage and settlement patterns, and the social and public life of the colonies. Many of the men who in earlier histories have been called 'the founding fathers' of Australia had a Peninsular War background and developed related social networks. John Macarthur proposed to Commissioner Bigge in1821 that the colony of New South Wales needed 'really respectable settlers'. Peninsular War veterans proved to be ideal in this respect, and in many others besides. The role of these veterans demonstrates key aspects of the emergence of the 'second' British Empire in the early nineteenth century, and also the change in the nature of the colony of New South Wales, from a penal and military society to a free one.
APA, Harvard, Vancouver, ISO, and other styles
33

Pons, Pujol Jordi. "Imatge oficial i política francesa respecte la Catalunya espanyola, 1895-1914." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/384239.

Full text
Abstract:
La construcció de l'Estat liberal espanyol al segle XIX va topar amb una Catalunya on predominaven forces socials i polítiques opositores. Era, a més, el centre econòmic més dinàmic de la península i on hi arrelaven amb més força els corrents culturals nascuts més enllà del Pirineu. Les potències europees no podien ignorar l'especificitat catalana, que en el cas de la República Francesa plantejava reptes afegits: l'existència del Rosselló, la Catalunya francesa; la presència d'una de les colònies de ciutadans francesos a l'estranger més nombrosa i amb interessos econòmics més destacables; i el veïnatge fronterer. L'estudi que presentem ha volgut analitzar la visió de Catalunya que es va formar el govern francès a partir dels seus agents diplomàtics en una etapa clau com és la de finals del segle XIX i primeres dècades del XX, en què el catalanisme polític pren volada i esdevé un fenomen polític d'ampli suport social. L'objectiu ha estat detallar la imatge o les imatges que aquests agents diplomàtics transmeteren i veure si acabaren fixant-se en uns clixés perdurables en el temps. A més, s'ha intentat esbrinar quines actituds generaren, quines mesures polítiques es van prendre i si es pot parlar d'una "política catalana" de França. La recerca s'ha fet essencialment en arxius públics francesos, i en menor mesura, en arxius espanyols i catalans. En el seu transcurs hem anat descobrint la importància que les autoritats franceses van donar al moviment obrer català, amb els corrents de caràcter revolucionari de manera destacada. Al llarg de l'estudi es presenten els paràmetres a partir dels quals es va fer el seguiment d'aquest obrerisme revolucionari i s'ensenya com va condicionar les relacions franco-espanyoles. Aquesta tesi doctoral s'estructura en dos grans blocs. El primer analitza la imatge oficial i la política franceses respecte la identitat catalana i el moviment catalanista, distingint entre la visió que transmetien els agents consulars de Barcelona, Tarragona i Palma, i l'ambaixador francès a Madrid. Especialment ric en matèria d'anàlisi ha estat l'episodi de l'assalt militar al Cu-Cut!, la Llei de Jurisdiccions i la constitució de la Solidaritat Catalana. Ha estat profitós el coneixement obtingut de les iniciatives catalanistes desenvolupades a París, poc conegudes en general. El segon bloc estudia el seguiment i les mesures que la república francesa va adoptar respecte l'obrerisme revolucionari català, tant a Catalunya com en els col·lectius refugiats a França fugint de la repressió espanyola. S'ha pogut comprovar el protagonisme absolut dels anarquistes catalans en els complots revolucionaris de la colònia espanyola a França, la seva vinculació estreta amb el que succeïa a l'interior de Catalunya, i la seva inserció en els corrents europeus antimilitaristes i del lliure pensament del moment Les actituds dels governs estrangers respecte la realitat nacional catalana és encara un camp poc explorat. El seu impacte en les relacions internacionals també.<br>The construction of the Spanish liberal state in the nineteenth century clashed with Catalonia, where social and political opposition forces prevailed. Catalonia was the most dynamic economic center of the peninsula, a place where cultural currents born beyond the Pyrenees rapidly expanded. European powers could not ignore the Catalan specificity. In the case of the French Republic, it posed added challenges: the existence of a French Catalonia -the Roussillon-; the presence of one of the biggest communities of French citizens abroad with substantial economic interests; and neighborhood border. The present investigation has sought to analyze which perception the French Government had about Catalonia, based on the information they got from their diplomatic agents. This study focuses in a key period in the late nineteenth century and early decades of the twentieth century, when the Catalan nationalism gathered strength and became a political phenomenon of broad social support. The objective of this study is to explain in detail the view or views of Catalonia these diplomatic agents transmitted, and check if they ended up being long-lasting cliches. This investigation has also tried to find out what attitudes were generated, what policy measures were taken and if we can identify a “French Catalan policy". This research was conducted mainly in French public archives, and to a lesser extent, in Catalan and Spanish archives. We have discovered French authorities gave importance to the Catalan working class movement, especially those currents with revolutionary character. Throughout the study we present the parameters from which it followed up this revolutionary working class and we expose how this influenced the relations between France and Spain. This PhD thesis is divided into two blocks. The first block analyzes the official view and the French policy regarding Catalan identity and the Catalan nationalist movement, distinguishing between the view conveyed by consular agents in Barcelona, Tarragona and Palma, and the French ambassador in Madrid. In terms of analysis, the episode of the military assault at Cu-Cut!, the Ley de Jurisdicciones and the constitution of the Catalan Solidarity stand out. The knowledge obtained about Catalan nationalists initiatives developed in Paris, little known in general, can be helpful in the future. The second block examines the monitoring and measures that the French Republic adopted regarding the Catalan revolutionary working class both in Catalonia and among refugee groups in France who lived there fleeing the Spanish repression. We have established the prominence of Catalan anarchists in revolutionary conspiracies among the Spanish community in France, their close links with what was happening inside Catalonia, and its integration into the European antimilitarist and freethinking movements. The attitudes of foreign governments regarding the Catalan national reality is still an unexplored field. The same applies to its impact on international relations. In this sense, this research aims to contribute to these two fields of study.
APA, Harvard, Vancouver, ISO, and other styles
34

Bhatia, Inderjeet. "Cellular and molecular mechanisms of bilirubin induced neural cell apoptosis and respective therapeutic interventions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B29529062.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Jaitha, Vedant V. "Short-Term Effects of Announcements and Performance of Athletes on their Respective Sponsoring Companies." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/cmc_theses/909.

Full text
Abstract:
Sponsorship is one of the main methods through which a number of companies perform marketing and advertising functions. Athletes can serve as brand ambassadors of various products which are believed to help increase sales and/or enhance the image of a firm. Although a lot of research has been done regarding the subject of how sponsorship announcements affect sponsoring companies, not much research is available regarding how non-economic events and individual performances affect sponsors in the short-run. This study hypothesized that ‘good news’ would cause positive abnormal returns while ‘bad news’ would cause negative abnormal returns for the sponsoring companies. A total of nine events relating to three athletes and ten sponsoring firms were analyzed. Although not many significant results were found, this study helped establish the idea that the temporary images of athletes and emotions related to athletes do not affect the financial markets in a large capacity. This study also lays out some further areas of research in the similar field.
APA, Harvard, Vancouver, ISO, and other styles
36

Dedinger, Béatrice. "Le commerce extérieur de l'Allemagne, 1871-1939 : l'incidence respective des facteurs politiques et économiques." Paris, Institut d'études politiques, 1992. http://www.theses.fr/1992IEPP0024.

Full text
Abstract:
En se plaçant dans une perspective historique, l'auteur cherche à expliquer l’évolution structurelle du commerce extérieur de l'Allemagne. La structure du commerce extérieur, représentée par les avantages comparatifs révélés" des produits, peut être expliquée par des facteurs politiques - protections, subventions, etc. , octroyées par les organes politiques sous la pression des groupes d'intérêts particuliers ou par des facteurs économiques - théorie des avantages comparatifs. La recherche menée sur la période 1880-1938 montre que les branches, pour lesquelles les pressions protectionnistes sont les plus fortes - l'agriculture, l'industrie textile et l'industrie lourde - et qui obtiennent les taux de protection les plus élevés, sont celles ou les désavantages comparatifs allemands restent les plus marqués ou bien celles ou les avantages comparatifs tendent à se réduire. A l'inverse, les industries favorables au libre-échange et dont la protection est relativement faible - les industries chimique, électrotechnique, mécanique - ont des avantages comparatifs élevés et en progression. Les interventions de nature politique n'empêchent donc pas, à terme, le jeu des avantages comparatifs. Par rapport à ses principaux partenaires commerciaux, l'Allemagne tire un avantage comparatif de sa dotation en capital humain. Mis en parallèle avec les tendances du passé, le commerce extérieur de la RFA (1950-1989) présente les mêmes avantages comparatifs élevés dans les industries chimique, mécanique et automobile, mais la faiblesse de la position allemande dans les industries nouvelles ressort<br>He object of this work is to explain, from an historical point of view, the structural development of German foreign trade. The structure, represented by the "revealed comparative advantages" of products, can be explained by : political factors, i. E. Protections, subsidies, etc. Accorded by political power under the pressure of interest groups, and economic factors, as described in the theory of comparative advantage. On the period 1880-1938, it appears that the most protectionist industries - agriculture, textile and iron industries -, the protection of which is relatively high, are precisely those where the revealed comparative disadvantages remain at the highest level or where the revealed comparative advantages tend to reduce. On the contrary, the industries inclined to free trade, the protection of which is relatively low - chemical, electrotechnical, mechanical industries - are those where the revealed comparative advantage get higher and higher. So, the law of comparative advantage cannot be distorted on the long term by the interference of political factors. Relatively to its main partners, Germany has a comparative advantage in products intensive in human capital. Compared with the past tendencies, West Germany (1950-1989) continues to specialize in chemical, mechanical and motor industries, but its position in the new industries is weak
APA, Harvard, Vancouver, ISO, and other styles
37

Bekki, Abdelkader. "Fixation d'azote en conditions de stress salin chez Médicago : sensibilité respective des partenaires symbiotiques." Nice, 1986. http://www.theses.fr/1986NICE4060.

Full text
Abstract:
La germination des graines de Médicago est inhibée en présence de sel et l'espèce Ciliaris est la plus résistante. Rhizobium meliloti, partenaire bactérien de la luzerne, peut se developper sur des milieux de culture fortement enrichis en NACL (600 mm). La souche ABS7 isolée de sols sales algériens manifeste une halo tolérance particulière, avec un temps de latence et de génération faibles. Elle maintient une activité superoxyde dismutase élevée. Il a été proposé que les acides aminés, accumulés et notamment le glutamate participent à l'osmoprotection et constituent aussi des substrats respiratoires
APA, Harvard, Vancouver, ISO, and other styles
38

Salo, Elaine Rosa. "Respectable Mothers, Tough Men and Good Daughters Producing Persons in Manenberg Township South Africa." University of Western Cape, 2004. http://hdl.handle.net/11394/8282.

Full text
Abstract:
Philosophiae Doctor - PhD<br>This ethnography explores the meanings ofpersonhood and agency in Manen¢berg, a township located on the Cape Flats, in Cape Town South Africa. The township was a site of relocation for people who were classified coloured during the apartheid era and who were forcibly removed from newly declared white areas in the city in the 1960s. I argue that despite the old apartheid state's attempts to reify the meaning of colouredness through racial legislation, the residents ofManenberg created their own meanings of personhood, agency and community within the bureaucratic, social and economic interstices of the apartheid system. Yet at the same time they also reinstated the very structural processes at the heart of their racial and gendered subjugation. I indicate how the cohesiveness of the Rio Street community in Manenberg, the survival of its residents and their validation as respectable mothers, tough men and good daughters hinged on and effioresced from a moral economy that articulated with the structural location of coloured women in the apartheid economy and racial bureaucracy.
APA, Harvard, Vancouver, ISO, and other styles
39

Malefo, Boikanyo Kenneth. "Do money managers outperform their respective benchmark? Evidence from South African Unit Trust industry." University of the Western Cape, 2015. http://hdl.handle.net/11394/4957.

Full text
Abstract:
>Magister Scientiae - MSc<br>Motivated by the growing attraction of the mutual fund industries across the world, this research seeks to explore the economic benefits contributed by the South African equity unit trust managers over the period from 1 January 2002 to 2 September 2012. The performance is examined over two sub-periods and the overall examination period, where the first sub-period captures the performance of the unit trusts before the 2007/2008 global financial crisis and the second sub-period captures the devastation in performance of the unit trusts after the crisis. Active fund managers are usually presumed to possess superior abilities in asset allocation, security selection and market timing that assist them to consistently generate abnormal returns on a risk-adjusted basis. This research attempts to test this claim by making a distinction in performance attribution between returns generated as a result of managerial skills and those generated as a result of random chance. The study emerges by first examining the risk-adjusted performance of the South African unit trust managers against the performance of a broad market index proxied by FTSE/JSE All Share Index (ALSI). Six different risk-adjusted performance measures are employed for this purpose. Regardless of the different applications of risk parameters employed by each performance measure, the results reveal that on average, most of the South African unit trust managers do not outperform the market on a consistent basis. The majority of the unit trust managers show good performance during the first sub-period, with subsequent inferiority in performance during the second sub-period. The study further examines the performance of the South African unit trust managers relative to the pre-specified sector benchmarks constructed by following a set of performance attribution techniques proposed by Yu (2008) and Hsieh (2010). The objective of this test is to determine whether the equity unit trust managers are able to create value through their security selection skill in addition to their asset allocation decisions. Consistent with international evidence, the results reveal that returns generated by South African unit trusts are driven mainly by asset allocation activities and stock picking of asset managers do not add significant value. In addition, test results also indicate that South African equity unit trust managers are not good at managing risk as the majority of the unit trusts exhibit higher standard deviation compared to their benchmarks. Furthermore, the study examines the economic value contribution of the South African equity unit trust managers through their market timing activities. In particular, the study attempts to determine whether or not unit trust managers possess the ability to correctly anticipate future market movements. To achieve this, two market timing performance models developed by Treynor-Mazuy (1966) and Henrikson-Merton (1981) are employed. The results reveal that, regardless of the changes in market conditions, South African equity unit trust mangers delivered significantly inferior timing performance in both sub-periods and the overall examination periods that actually destroyed fund values. The paper concludes by stating that investors are better off by investing in cost-effective passive investment vehicles such as exchange traded funds (ETF's).
APA, Harvard, Vancouver, ISO, and other styles
40

Bekki, Abdelkader. "Fixation d'azote en conditions de stress salin chez Medicago sensibilité respective des partenaires symbiotiques." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375958025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Ali, Zahid. "Developing strategies for homologous, heterologous plant expression system for physiological investigations of respective target proteins." kostenfrei, 2007. http://d-nb.info/987031201/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Tsang, Po-chu, and 曾寶珠. "Respectable criminals: an exploratory study of copyright infringement among secondary school teachers in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31979099.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Lam, Sui-bik Brenda, and 林萃碧. "Child anxiety: the conceptual link and respective roles of attachment security and sense of control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B47657078.

Full text
Abstract:
There has been growing research attention on the topic of child anxiety applying the theoretical framework of Attachment Theory, and the results have been encouraging so far with consistent findings on the positive association between insecure attachment and child anxiety. Child anxiety has also been associated with a diminished sense of control with extensive empirical evidences. Nevertheless, despite the rich empirical support on the associations between insecure attachment and child anxiety, and between diminished sense of control and child anxiety, the potential pathways of anxiety transmission remain largely unclear. In their discussion on the development of child anxiety, Chopita and Barlow (1998) proposed a conceptual link between attachment security and sense of control, even though it has not been followed up with empirical studies. Since available empirical evidences have validated the role of attachment security and sense of control in the development of child anxiety, it will be conceptually meaningful to investigate the potential link between attachment security and sense of control, and their respective and interactive roles in the development of child anxiety. The current study also aspires to improve understanding on the relationships between parental anxiety, parent’s and child’s sense of control, and child anxiety within the context of children undergoing elective surgeries. Children of 151 parents were about to receive elective surgeries participated in this study. Among these parents, 59 of them have children reached age 6 or above and all these children also participated in the current study. Information from 144 parents (95.36%) and 51 children (86.44%) was used for subsequent analyses. Information from 7 parents (4.64%) and 8 children (13.56%) was excluded from further analyses as they filled in less than 30% of the questionnaire items. Findings from present study showed children with insecure attachment and/or high external LOC experienced increased anxiety in preoperative period. The findings are consistent with existing literature. Children with insecure attachment were also found to espouse a higher level of external LOC. Besides, regression analyses showed that attachment security moderated the relationships between child’s external LOC and anxiety. Results also support the notion that secure attachment could be a protective factor against child anxiety development. Moreover, mediation analyses indicated child’s LOC mediated the relationship between parental and child anxiety, thereby supporting the mediation model by Chopita and Barlow. From a theoretical standpoint, findings from current study provided initial support on the linkage between attachment security and sense of control. Child’s external LOC as a potential pathway for intergenerational transmission of anxiety was also supported. The findings also bear significant clinical implications. Specifically, early screening and identification of children with insecure attachment and external LOC would allow more effective allocation of resources targeting at anxiety management in preoperative setting. Besides, taking into consideration the impact of parental anxiety, intervention for child anxiety including components for parental anxiety management should be emphasized.<br>published_or_final_version<br>Clinical Psychology<br>Doctoral<br>Doctor of Psychology
APA, Harvard, Vancouver, ISO, and other styles
44

Saeed, Mohazzam. "Exploring effects of hydrodynamic flotation variables on their respective metallurgical responses through laboratory scaling up." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87078.

Full text
Abstract:
To meet the increasing demand for raw materials, higher throughput of mineral separation through froth flotation is becoming important. This higher throughput can be achieved by increasing the size of flotation equipment termed scaling up. Flotation performance is greatly affected by the size of flotation machines and remains an important research area to correlate flotation behavior between small and larger flotation machines. The Outotec GTK LabCell®, a mechanical flotation machine, has been used as a benchmark for many industrial pre-feasibility studies around the world for the past decade. This study deals with the scale-up assessment in terms of flotation rate constant between 2 L and 7.5 L flotation cells of the Outotec GTK LabCell®, machine. The design of these lab scale flotation machines is comparable to other Outotec industrial scale flotation equipment considering rotor and impeller design, and the main difference is in scale. The influence of the hydrodynamic parameters on the flotation performance in both the cells was investigated by varying the impeller tip speed and superficial gas velocity. Particle size distribution analysis indicated concentrate product was finer at smaller cell size at all combinations of impeller tip speed and superficial gas velocity. The results showed for both cells, mass and water recovery increased with an increase in the impeller tip speed and superficial gas velocity until a certain value, after which they decreased. Maximum mass and water recovery were achieved using an impeller tip speed of 3.1 m/s and superficial gas velocity of 0.21 cm/s. Flotation kinetic analysis indicated scaling up of flotation cells was possible at different impeller tip speed by keeping the superficial gas velocity at 0.21 cm/s.
APA, Harvard, Vancouver, ISO, and other styles
45

Korn, Anja. "Respective roles of the ferredoxin : NADP-oxidoreductase isoforms in the cyanobacterium Synechocystis sp. PCC 6803." Paris 11, 2010. http://www.theses.fr/2010PA112009.

Full text
Abstract:
Dans les organismes photosynthétiques, la ferrédoxine:NADP oxydoréductase (FNR) fournit le NADPH nécessaire à l’assimilation du CO2, mais elle réduit aussi la ferrédoxine (Fd) à partir du NADPH. La cyanobactérie Synechocystis sp. PCC6803 contient deux isoformes de FNR : une forme courte (FNRS, 34 kDa) et une forme longue (FNRL, 46 kDa) qui est liée au phycobilisome (PBS), un complexe collecteur de lumière. Nous avons purifié un sous-complexe du PBS qui contient la FNRL (FNRL-PC) et comparé les propriétés enzymatiques de FNRL-PC à FNRS. Par rapport à FNRS, FNRL-PC présente des affinités plus faible/forte pour le NADPH/la Fd, conformément aux prédictions des activités relatives des deux isoformes. La plupart des différences observées sont attribuées à l’encombrement stérique amené par la phycocyanine dans FNRL-PC. En conditions de turnover multiple, les deux isoformes catalysent de la même manière la réduction de NADP+ et de plus le transfert d’électrons (TE) depuis Fdred est limitant à force ionique élevée. Lors d’études in vivo, nous avons observé une augmentation de l’oxydation du NADPH par TE respiratoire ou cyclique chez un mutant ne contenant que la FNRS et chez le type sauvage à faible CO2. Les mesures ont montré clairement que FNRS est impliqué dans ce TE alternative et nous proposons que FNRS constitue le module déshydrogénase de NDH-1. La localisation de la FNR et/ou la présence de substrats semblent être essentiels dans les rôles respectifs des isoformes de FNR in vivo. Des études futures devraient nous donner une vue plus complète des processus de TE in vivo et clarifier le rôle du TE dépendant du NADPH et favorisé par FNRS dans la réduction du pool de PQ<br>In photosynthetic organisms, ferredoxin:NADP oxidoreductase (FNR) provides NADPH for CO2 assimilation, but it also utilizes NADPH to provide reduced ferredoxin (Fd). The cyanobacterium Synechocystis sp. Strain PCC6803 contains two FNR isoforms, a small (FNRS, 34 kDa) and a large one (FNRL, 46 kDa) that is associated with the phycobilisome (PBS), a light-harvesting complex. We purified a PBS subcomplex comprising FNRL (FNRL-PC) and compared the enzymatic properties of FNRL-PC to FNRS. FNRL-PC exhibits an increased NADPH affinity, and a decreased Fd affinity in agreement with its predicted lower activity of Fd reduction. FNRL-PC shows also a decrease in the rate of single electron transfer (ET) from Fdred. Most of the obtained differences are attributed to steric hindrance by the phycocyanin moiety of FNRL-PC. Both isoforms seem to catalyze the NADP+ reduction under multiple turnover conditions to the same extent and we obtained evidence that, under our high ionic strength conditions, ET from Fdred is rate limiting. During in vivo studies, we presented evidence supporting an increase of NADPH oxidation by respiratory or cyclic ET in a mutant lacking FNRL and a similar behavior was observed for the wild type under low CO2. The measurements clearly showed that FNRS is implicated in this alternative ET and we propose that FNRS attaches to NDH-1 acting as the dehydrogenase module. FNR localization and/or substrate availability seem to be essential so that FNR isoforms perform their respective roles in vivo. Future studies should result in a more complete in vivo view and clarify the important issue of the NADPH-dependent ET into the PQ pool that seems to be enhanced in the absence of FNRL
APA, Harvard, Vancouver, ISO, and other styles
46

Canu, Marie-Hélène, and Marie-Josèphe Besson. "Rythmes beta d'attention et fuseaux de sommeil : contribution respective des noyaux postérieur et rétuculaire thalamiques." Paris 6, 1993. http://www.theses.fr/1993PA066049.

Full text
Abstract:
Le travail presente ici traite des mecanismes thalamiques de l'attention focalisee et du sommeil chez le chat. A chaque niveau d'attention correspond un rythme sur un foyer cortical precis: rythmes beta d'attention focalisee, rythmes mu d'attente, rythmes lents somesthesiques lors de l'assoupissement, et fuseaux pendant le sommeil lent (chap. 1). Des donnees anterieures ont mis en evidence le role du groupe posterieur median pom dans l'expression des rythmes beta. Dans le chap. 2, nous avons montre par une exploration unitaire realisee chez l'animal non anesthesie en contention non douloureuse que 16% des cellules du pom modifient leur activite pendant les rythmes beta. L'attention focalisee est sous la dependance d'un systeme dopaminergique issu de l'aire tegmentale ventrale atv. Dans le chap. 3, le marquage par transport retrograde de hrp, ou par transport anterograde de pha-l. A permis de trouver le chainon manquant de cette voie de commande, reliant le n. Dorso-median du thalamus au pom. De plus, nous montrons que le n. Antero-ventral av se projette sur les foyers thalamiques des rythmes beta et mu: la voie connue de l'atv vers l'av se presente donc comme un systeme capable de regler des interactions entre les systemes beta et mu. Parce qu'il constitue une structure particuliere au sein du thalamus, plusieurs auteurs ont suggere que le n. Reticulaire (ret) aurait un role dans l'expression des rythmes beta. Dans le chap. 4, l'etude de l'activite unitaire des cellules du ret a montre qu'il n'existait pas de relation avec les rythmes beta. En revanche, 21% des cellules du ret modifiaient leur decharge pendant les fuseaux de sommeil. Des cellules des noyaux pulvinar, lateral et ventral posterieurs et des corps genouilles lateral et median ont ete etudiees de la meme facon que celles de pom et du ret. Aucune relation avec les rythmes beta ou les fuseaux de sommeil n'a ete observee (annexe). En conclusion, rythmes beta et fuseaux de sommeil dependent de deux generateurs distincts, situes dans un foyer thalamique restreint (respectivement le pom et le ret). Enfin, nous avons voulu savoir si les resultats obtenus chez l'animal vigile etaient comparables aux donnees de la litterature obtenues sous anesthesie. Nous avons donc, dans le chap. 5, compare l'activite unitaire de quelques cellules thalamiques lors du sommeil naturel et sous anesthesie barbiturique. Notre conclusion est que les resultats ne sont pas comparables, l'anesthesie induisant une regularite de decharge jamais observee chez l'animal normal.
APA, Harvard, Vancouver, ISO, and other styles
47

REYMOND, GILLES. "Contribution respective des stimuli visuels, vestibulaires et proprioceptifs dans la perception du mouvement du conducteur." Paris 6, 2000. http://www.theses.fr/2000PA066408.

Full text
Abstract:
La question de la contribution respective des stimuli visuels, vestibulaires et proprioceptifs dans la perception du mouvement propre du conducteur automobile est abordee ici sous le theme de la conduite en virage. L'objectif de recherche choisi est de caracteriser d'un point de vue theorique et experimental les interactions multisensorielles sous-jacentes, et d'appliquer ces resultats a l'evaluation des techniques de restitution du mouvement employees dans les simulateurs de conduite automobile. Une etude experimentale de la conduite en virage sur vehicule reel et sur simulateur a permis de caracteriser la strategie de choix de vitesse adoptee par les conducteurs en fonction de l'acceleration laterale. Un modele a ete propose pour relier ce critere comportemental a la perception visio-vestibulaire de l'acceleration, qui est compare avec les modeles existants bases sur des indices visuels. L'interpretation perceptive des resultats obtenus a conduit au developpement d'un modele general pour la fusion multisensorielle base sur un principe d'optimisation dynamique, mis au point a partir de donnees psychophysiques classiques et utilise ensuite pour decrire les interactions sensorielles en virage reel ou simule. Enfin, l'utilisation experimentale du stimulateur a donne lieu a l'etude d'un algorithme de commande pour la restitution du mouvement permettant de reduire certains conflits sensoriels. Ces travaux ont ete realises dans le cadre d'un contrat cifre (contrat anrt n o 331/97) a renault, direction de la recherche, groupe simulation et realite virtuelle, et au laboratoire de physiologie de la perception et de l'action (lppa), umr c9950 cnrs-college de france.
APA, Harvard, Vancouver, ISO, and other styles
48

Veereshlingam, Harita. "Characterization of Infection Arrest Mutants of Medicago Truncatula and Genetic Mapping of Their Respective Genes." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc5567/.

Full text
Abstract:
In response to compatible rhizobia, leguminous plants develop unique plant organs, root nodules, in which rhizobia fix nitrogen into ammonia. During nodule invasion, the rhizobia gain access to newly divided cells, the nodule primordia, in the root inner cortex through plant-derived cellulose tubes called infection threads. Infection threads begin in curled root hairs and bring rhizobia into the root crossing several cell layers in the process. Ultimately the rhizobia are deposited within nodule primordium cells through a process resembling endocytosis. Plant host mechanisms underlying the formation and regulation of the invasion process are not understood. To identify and clone plant genes required for nodule invasion, recent efforts have focused on Medicago truncatula. In a collaborative effort the nodulation defect in the lin (lumpy infections) mutant was characterized. From an EMS-mutagenized population of M. truncatula, two non-allelic mutants nip (numerous infections with polyphenolics) and sli (sluggish infections) were identified with defects in nodule invasion. Infection threads were found to proliferate abnormally in the nip mutant nodules with only very rare deposition of rhizobia within plant host cells. nip nodules were found to accumulate polyphenolic compounds, indicative of a host defense response. Interestingly, nip was also found to have defective lateral root elongation suggesting that NIP has a role in both nodule and lateral root development. NIP was found to map at the upper arm of chromosome 1. In sli, infection threads were observed to bring rhizobia from infection threads to newly divided nodule primordium cells in the roots inner cortex. Polyphenolic accumulation in sli nodule/bumps was found. Lateral roots in sli were found to be clustered at the top of the root, indicating that sli like nip may be defective in lateral root development.
APA, Harvard, Vancouver, ISO, and other styles
49

Tsang, Po-chu. "Respectable criminals : an exploratory study of copyright infringement among secondary school teachers in Hong Kong /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22030554.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Compta, Creus Albert. "Contribució a l'estudi geomètric de subespais invariants respecte a transformacions i sistemes lineals." Doctoral thesis, Universitat Politècnica de Catalunya, 2001. http://hdl.handle.net/10803/5828.

Full text
Abstract:
Mitjançant tècniques geomètriques, abordem les qüestions següents:<br/><br/>(i) Estudi (caracterització, classificació, famílies diferenciables,...) d'una classe destacada de subespais invariants, els anomenats "marcats".<br/>(ii) Existència i construcció de solucions de l'anomenat problema de Carlson.<br/>(iii) Pertorbacions de matrius conservant un subespai invariant.<br/><br/><br/>I. Gohberg, P. Lancaster i L. Rodman defineixen una classe de subespais invariants, els marcats, com els que admeten una base de Jordan relativa a la restricció que sigui extensible a una base de Jordan de l'espai.<br/><br/>J. Ferrer-F. Puerta-X. Puerta caracteritzen els subespais marcats en termes geomètrics i els classifiquen. Aquí, els caracteritzem de dues formes diferents: la primera utilitza la filtració doble de Jordan formada per les interseccions dels nuclis i les imatges de les potències de l'endomorfisme, i en particular retroba el resultat abans referit; la segona és en termes de la filtració triple, que resulta d'intersecar l'anterior amb les imatges de les potencies de la restricció, que permet generalitzar el teorema de classificació anterior.<br/><br/>En relació amb la segona qüestió, recordem que el problema de Carlson consisteix en preguntar-se per l'existència d'una matriu amb una forma de Jordan determinada si són fixades les formes de Jordan d'un subespai invariant i del quocient. <br/><br/>Mitjançant T. Klein es redueix el problema de Carlson a l'existència de les successions de Littlewood-Richardson. Recentment, com es pot veure en un article resum de W. Fulton, s'han trobat condicions a l'efecte.<br/> <br/>No obstant, no hi ha algorismes per construir solucions explícites. Aquí presentem una demostració geomètrica constructiva del resultat anterior que permet un algorisme per a l'obtenció de solucions.<br/><br/>Com una aplicació important, obtenim que, fixades les característiques de Segre del subespai i del quocient, totes les característiques de Segre compatibles tenen alguna realització en qualsevol entorn de les que corresponen a un subespai marcat. Resulta, doncs, que totes les solucions al problema de Carlson apareixen pertorbant les solucions marcades elementals.<br/><br/>Això motiva que en la tercera part d'aquest treball estudiem les deformacions d'una matriu que deixa invariant un subespai. Apliquem les tècniques usades per V.I. Arnold per a matrius quadrades per estudiar les matrius del mateix tipus que li són properes. N'obtenim l'expressió implícita d'una deformació miniversal i l'apliquem per obtenir explícitament una deformació miniversal d'una matriu marcada.<br/><br/>Els dos primers problemes els tractem també per al cas de sistemes lineals, representats per parelles horitzontals de matrius (A,B). Per dualitat, és equivalent considerar parelles verticals, habitualment escrites (C,A), les quals es poden tractar com a aplicacions lineals definides en un subespai.<br/><br/>I. Gohberg, P. Lancaster i L. Rodman estenen la definició de subespai invariant per una parella de matrius. Els subespais (C,A)-invariants també reben el nom de subespais invariants condicionats.<br/><br/>Un subespai invariant condicionat es diu marcat si existeix una base de Brunovsky relativa a la restricció extensible a una base de Brunovsky del total. Obtenim una caracterització geomètrica dels subespais (C,A)-marcats, una família completa d'invariants que els classifiquen i condicions suficients per a la existència d'una base global de Brunovsky per a una família diferenciable de subespais (C,A)-marcats.<br/><br/>El problema de Carlson també es generalitza de forma natural a parelles de matrius. Aquí, demostrem un teorema, anàleg al fet en el cas quadrat, quan la parella és observable i el quocient és un endomorfisme amb un sol valor propi. Aquest últim problema també ha estat resolt per I. Baragaña i I. Zaballa usant mètodes matricials. És remarcable que una relació directa entre les particions que caracteritzen els blocs de les matrius, que en el cas quadrat és solament necessària, és suficient per a garantir l'existència de solucions en aquest cas. Igualment generalitzem l'algorisme per a l'obtenció explícita de solucions.<br>We study the next items geometrically:<br/>(iv) Characterization, classification, differentiable families,...of an important type of invariant subspaces called marked subspaces.<br/>(v) Existence and construction of Carlson problem solutions. <br/>(vi) Deformations of matrices that preserve a subspace.<br/>(vii) <br/><br/>I. Gohberg, P. Lancaster and L. Rodman define the marked subspaces as the ones that have a Jordan basis of the restriction extensible to a Jordan basis of the whole space.<br/><br/>J. Ferrer, F. Puerta, and X. Puerta characterize the marked subspaces geometrically and classify them. Here, we characterize them in two different forms: the first one uses the Jordan double filtration formed by kernels and images intersections of the powers of the endomorphism, and in particular find the above result again; the second one is in terms of the triple filtration formed by the intersection of the sets of the above filtration with the images of the powers of the restriction, that allows us to generalize the above classification theorem.<br/> <br/>In relation to the second item, we recall that the Carlson problem consists of asking by the existence of a matrix with a certain Jordan form if the Jordan form of an invariant subspace and his quotient are fixed.<br/> <br/>T. Klein reduces the Carlson problem to the existence of the Littlewood-Richardson sequences. Recently, as we can see in a W. Fulton summary paper, existence conditions for them are obtained.<br/> <br/>However there are not algorithms to construct explicit solutions. Here we present a geometrical proof of the above result that allows us an algorithm for that.<br/><br/>As an important application, we obtain that, if the Segre characteristic of the subspace and the quotient are fixed, all the compatible Segre characteristics can be realized in a neighbourhood of some realization corresponding to a marked subspace. It follows that all the Carlson problem solutions appear perturbing the marked solutions.<br/><br/>This fact causes that we study the deformations of matrices preserving a subspace in the third part of this paper. We apply the techniques used by V.I. Arnold in the study of deformations of square matrices to study the same kind of matrices that are near them. We obtain the explicit form of a miniversal deformation of a marked matrix.<br/><br/>We also study the two first items in the linear system case, done by horizontal pairs of matrices (A,B). By duality, it is equivalent to considerate vertical pairs written habitually (C,A), that we can see as linear maps defined in a subspace.<br/><br/>I. Gohberg, P. Lancaster and L. Rodman give the definition of an invariant subspace by a pair of matrices. The (C,A)-invariant subspaces are also known as conditioned invariant subspaces.<br/><br/>We say that a conditioned invariant subspace is marked if there is a Brunovsky basis of the restriction extendible to a Brunovsky basis of the whole space. We obtain a geometrical characterization of (C,A)-marked subspaces, a complete family of invariants and sufficient conditions in order to guarantee the existence of a global Brunovsky basis of a differentiable family of (C,A)-marked subspaces.<br/><br/>We can also generalize the Carlson problem for pairs of matrices in a natural way. Here, we prove a theorem, similar to the one for the square case, when the pair is observable and the quotient is an endomorphism with an only eigenvalue. I. Baragaña and I. Zaballa also solved this problem using matricial methods. We want to note that a direct relation between the partitions that characterize the blocks of the matrices is sufficient to guarantee the existence of solutions while it is only necessary in the square case. Also we generalize the algorithm to obtain explicit solutions.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography