• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 3486
  • 1402
  • 595
  • 314
  • 170
  • 85
  • 80
  • 67
  • 62
  • 62
  • 62
  • 62
  • 62
  • 62
  • 47
  • Tagged with
  • 7215
  • 826
  • 690
  • 578
  • 566
  • 496
  • 469
  • 437
  • 387
  • 369
  • 344
  • 324
  • 298
  • 290
  • 290
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Contribution à la malléabilité des collecticiels : une approche basée sur les services web et les agents logiciels / Contribution to groupware tailorability : an approach based on web services and software agents

Cheaib, Nader 16 June 2010 (has links)
L'objectif du TCAO (Travail Collaboratif Assisté par Ordinateur), est de trouver les moyens par lesquels les applications collaboratives sont susceptibles d'améliorer la collaboration entre les individus. De ce fait, il existe une grande nécessité de remédier des contraintes liées au manque de flexibilité et la rigidité des systèmes collaboratifs actuels, par l'adoption des solutions adéquates pour mettre en oeuvre une meilleure collaboration, selon le contexte et la tâche à effectuer entre les utilisateurs. En effet, le domaine du TCAO doit évoluer avec l'évolution des systèmes et des technologies qui touchent notre vie quotidienne, surtout l'évolution de l'internet qui nous rend totalement dépendant des services et applications qui existent "virtuellement", où la plupart des utilisateurs passent une bonne partie de leurs temps à exploiter des méthodes à rechercher et utiliser ces services qui correspondent le plus à leurs préférences. C'est pour cette raison que l'évolution du TCAO se montre essentielle pour faire face à l'évolution exponentielle des technologies d'internet, afin de créer ou de réutiliser plus facilement des applications chargées d'assister le travail communautaire des hommes, que l'on nomme applications collaboratives, ou collecticiels. Le sujet de thèse proposé couvre les aspects collaboratifs d'un système et les questions concernant son intégration. Plus particulièrement, notre objectif essentiel est de concevoir une architecture logicielle pour les collecticiels malléables, de sorte qu'elle puisse s'adapter aux changements et aux diversités des besoins des utilisateurs, ainsi que la tâche à effectuer. En conséquence, une forte exigence surgit en terme d'ouverture, où le système peut dynamiquement intégrer de nouveaux services sans arrêter le déroulement de la collaboration, ni manuellement recoder et recompiler l'application. Une deuxième exigence est d'assurer une certaine adaptabilité, où le système peut générer de nouveaux comportements à partir de la composition de deux ou plusieurs services. Finalement, une exigence surgit en terme d'interopérabilité, surtout dans le cas où les utilisateurs utilisent des applications incompatibles ou hétérogènes. Ainsi, la création, l'ajout, la suppression ou la manipulation des composants du système collaboratif sont faites via les services web. De plus, la recherche, l'invocation et l'intégration de ces services se fait à l'aide d'agents logiciels qui se chargeront, avec une assistance minimale de l'utilisateur, de rechercher les services les mieux adaptés à leurs spécifications. Dans cette thèse, nous créons un lien entre les concepts théoriques qui se développent au sein des laboratoires de recherche, et les technologies qui se développent d'une façon très rapide dans le secteur industriel, afin de concevoir des systèmes collaboratifs plus adaptés au monde informatique quotidien. / The aim of CSCW (Computer Supported Cooperative Work) is to find ways in which applications should improve collaborative work between individuals. Hence, there is great need to address constraints related to the lack of flexibility and rigidity of current collaborative systems, through the adoption of adequate solutions to implement a better collaboration, depending on user' needs and the task that is being done. Therefore, the field of CSCW must evolve with the evolution of systems and technologies that affects our daily lives, especially the internet evolution that makes us completely dependent on the services and applications that "virtually" exist, where most people spend a lot of their time collaborating and exploiting methods to find and use services that meet their preferences. The development of CSCW systems appears essential to address the exponential growth of internet technologies to create or reuse applications to assist the community work of men, known as collaborative applications, or groupware. In this work, the thesis covers collaborative aspects of a system, and the questions concerning its integration. More specifically, the main objective is to provide a platform for "tailorable" collaboration, where the services offered by the groupware can be adapted to the changing and diverse needs of users. Accordingly, strong requirements arise in terms of adaptability, by composing or integrating new services without stopping the collaboration process and interoperability between the system's components, especially if users are using incompatible or heterogeneous applications. A proposed solution is to use the concepts of web services, integrated with the concepts of multi-agent systems (MAS). Thus, the creation, addition, deletion or dynamic manipulation of the system's components will be done via the web services. In addition, research, invocation and integration of these services will be done using software agents with minimal user assistance, depending on users' preferences. In this thesis, we try to build a bridge between theoretical concepts which are developed in research laboratories, and technologies being developed exponentially in the industrial sector, hence, creating a synergy of theory and concepts, to design more efficient collaborative systems, that are better suited to the everyday computing world.
2

Design and biological evaluation of novel antitumor agents with mechanisms of action against topoisomerase II and/or G-quadruplexes

Kim, Mu-yong. January 2002 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
3

Synthesis of 10, 11, 12, 12a, 12b, 13-hexahydro-5hbenzo[f]cyclopropa[d]pyrido[1,2-b] isoquinoline-5,7(9H)dione and related compounds

Tinkleman, Joseph M. Smith, Forrest T., January 2009 (has links)
Thesis (Ph. D.)--Auburn University. / Abstract. Vita. Includes bibliographical references (p. 134-137).
4

Molecular mechanism for DNA recognition by DNA alkylating antitumor agents /

Lee, Seung-joo, January 1999 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1999. / Vita. Includes bibliographical references (leaves 138-144). Available also in a digital version from Dissertation Abstracts.
5

Gestion patrimoniale des anciens agents antimicrobiens en les criblant contre des bactéries multi-résistantes modernes / Patrimonial management of old antimicrobial agents by screening against modern multi-drug resistants bacteria

Okdah, Liliane 24 November 2017 (has links)
L’émergence des bactéries résistantes aux béta-lactamines et aux carbapénèmes, a abouti à la réintroduction de la colistine comme agent de dernier recours pour traiter les infections dues à ces germes. Cependant, les résistances chromosomique et plus récemment plasmidique à la colistine ont apparu. Ce problème de bactéries multi-résistantes a par la suite déclenché la publication d’articles alarmants sur les dangers de ces germes. Pour répondre à la dramatisation médiatique liée à ce problème, mon projet de thèse vise à proposer des stratégies thérapeutiques pour traiter les infections dues aux bactéries multi-résistantes. Dans un premier temps, nous avons testé l’activité d’un large panel comprenant des anciens antibiotiques contre les bactéries résistantes aux carbapénèmes et d’autres résistantes à la colistine. Plusieurs familles d’antibiotiques ont été efficaces contre ces 2 types de bactéries résistantes.Dans un deuxième temps, nous avons évalué l’activité d’antibiotiques combinés en vue de détecter une synergie d’action. Deux combinaisons synergiques ont été retenues : colistine + sulfadiazine et colistine + acide fusidique. Ces associations d’antibiotiques ont démontré un effet bactéricide sur une collection de bactéries Gram négatives résistantes à la colistine, et ceci indépendamment du mécanisme de résistance. / The emergence of beta-lactam and carbapenem resistant bacteria, resulted in the reintroduction of colistin as an agent of last resort to treat infections caused by these bacteria. However, chromosomal resistances and more recently plasmidic to colistin appeared. This problem of multidrug-resistant bacteria subsequently triggered the publication of alarming articles on the dangers of these germs. To answer the media dramatization related to this problem, my thesis project aims to propose therapeutic strategies to treat infections due to multiresistant bacteria.Initially, we tested the activity of a large panel including old antibiotics against carbapenem resistant bacteria and others resistant to colistin. Several families of antibiotics have been effective against these two types of resistant bacteria.In a second step, we evaluated the activity of combined antibiotics in order to detect a synergistic action. Two synergistic combinations were retained: colistin + sulfadiazine and colistin + fusidic acid. These combinations of antibiotics have shown a bactericidal effect on a collection of Gram-negative colistin-resistant bacteria, independent of the resistance mechanism.
6

Development of genotyping resistance testing of fusion inhibitors for anti-retroviral therapy

Choi, Pik-shan, 蔡碧珊 January 2008 (has links)
published_or_final_version / Medical Sciences / Master / Master of Medical Sciences
7

The most effective method to improve antiretroviral drug adherence

陳惠結, Chan, Wai-kit. January 2008 (has links)
published_or_final_version / Nursing Studies / Master / Master of Nursing
8

IMMUNOLOGY, PHARMACOLOGY AND TOXICOLOGY OF THE IMMUNOSUPPRESSIVE CYCLIC PEPTIDE, DIDEMNIN B.

MONTGOMERY, DAVID WESLEY. January 1986 (has links)
Didemnin B (DB) is a seven amino acid cyclic polypeptide (NSC-325319), MW 1112, isolated from a Caribbean tunicate of the family didemnidae (Trididemnum genus). In vitro assays of murine splenic mononuclear cell (MNC) proliferation showed that DB potently inhibited the mixed lymphocyte reaction (IC₅₀ = < 10 pg/ml), concanavalin A (Con A; IC₅₀ = 50 pg/ml) and lipopolysaccharide (IC₅₀ = < 100 pg/ml) mitogenesis. Proliferation induced by phorbol esters, calcium ionophore and Con A were equipotently inhibited by DB, suggesting that the drug acts upon an intracellular pathway common to these mitogens. Since DB did not produce lymphocytotoxicity, nor inhibit ongoing DNA, RNA or protein synthesis at immunosuppressive concentrations, it was concluded that this agent may affect lymphocyte activation processes. Investigation of the mechanisms of DB action showed that it failed to alter interleukin 2 (Il-2) production by MNC in vitro. However DB was found to block binding of the hormone prolactin (PRL) to both human lymphocytes and a PRL-dependent cell line, the Nb 2 node lymphoma. As PRL plays an important regulatory role in the immune response, abrogation of PRL-MNC interaction may represent a site of DB immunosuppressive action. In vivo, DB demonstrated a potent, inhibitory effect upon alloantigen-driven proliferation in the murine graft-versus-host reaction but hemagglutinating antibody responses in mice to sheep red blood cells were strongly enhanced by DB treatment (4.6-fold). Further, DB treatment of mice in vivo was not bone marrow suppressive, but increased organ cellularity, ongoing DNA synthesis and circulating levels of lymphocytes and granulocytes. DB also exerted significant toxicity in vivo. High doses caused losses in body weight (18%) and mortality (20%), but no mortality occurred at doses of 0.1 mg/kg/day x 7 days. DB did not significantly alter indices of renal function but high dose treatment produced significant but reversible hepatotoxicity. DB also induced ornithine decarboxylase activity in various rat tissues, with adrenal > liver > kidney = spleen > thymus > heart. This correlated with increased organ to body weight ratios for liver and spleen, suggesting a trophic response of these organs to DB. The data presented here show that DB exerts potent inhibitory activity toward cell mediated immunity in vivo and in vitro suggesting that DB might also inhibit rejection of solid organ grafts. In addition, humoral responses and bone marrow function are markedly enhanced by DB treatment in vivo, suggesting that resistance to infectious organisms might be increased by this drug.
9

Les agents immobiliers : place et rôle des intermédiaires sur le marché du logement dans l'agglomération lyonnaise, 1990-2006

Bonneval, Loïc Grafmeyer, Yves January 2008 (has links)
Reproduction de : Thèse de doctorat : Anthropologie et Sociologie : Lyon 2 : 2008. / Titre provenant de l'écran-titre. Bibliogr.
10

Evaluating different training styles at MetLife Auto & Home

Kelm, Jessica. January 2000 (has links) (PDF)
Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 2000. / Includes bibliographical references.

Page generated in 0.0517 seconds