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  • 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

Experiments in stochastic nonlinear dynamics

Stocks, Nigel Geoffrey January 1990 (has links)
No description available.
2

A photochemical approach to the thromboxane A ring system

Jones, S. W. January 1986 (has links)
No description available.
3

Evaluation of the pH dependence of a polyclonal catalytic antibody preparation and generation of an analogous monoclonal catalytic antibody

Barber, Nicola Jane January 1997 (has links)
No description available.
4

Electroacoustic music : composition beyond the acousmatic

Waters, Simon January 1996 (has links)
No description available.
5

A systems analysis to determine an efficient checkout procedure for operational amplifiers in an analog computer

Craig, George Arthur 08 1900 (has links)
No description available.
6

Symbolic tolerance and sensitivity analysis of large scale electronic circuits

Eberhardt, Friedemann January 1999 (has links)
No description available.
7

Restriction of DNA conformation by spirocyclic annulation at C4': synthesis of the nucleoside building blocks

Kahane, Alexandra L. 03 February 2004 (has links)
No description available.
8

Asynchronous spike event coding scheme for programmable analogue arrays and its computational applications

Gouveia, Luiz Carlos Paiva January 2012 (has links)
This work is the result of the definition, design and evaluation of a novel method to interconnect the computational elements - commonly known as Configurable Analogue Blocks (CABs) - of a programmable analogue array. This method is proposed for total or partial replacement of the conventional methods due to serious limitations of the latter in terms of scalability. With this method, named Asynchronous Spike Event Coding (ASEC) scheme, analogue signals from CABs outputs are encoded as time instants (spike events) dependent upon those signals activity and are transmitted asynchronously by employing the Address Event Representation (AER) protocol. Power dissipation is dependent upon input signal activity and no spike events are generated when the input signal is constant. On-line, programmable computation is intrinsic to ASEC scheme and is performed without additional hardware. The ability of the communication scheme to perform computation enhances the computation power of the programmable analogue array. The design methodology and a CMOS implementation of the scheme are presented together with test results from prototype integrated circuits (ICs).
9

Activité et évaluation thérapeutique de dérivés furanosidiques sur le parasite Leishmania donovani / Activity and therapeutic evaluation of furanosidic derivates on Leishmania donovani parasite

Ory, Kévin 22 January 2019 (has links)
L’émergence de résistances de Leishmania vis-à-vis de certaines molécules ainsi que le coût élevé des traitements de la leishmaniose constituent une problématique dans les zones d’endémie défavorisées. Le développement de nouvelles molécules efficaces et à bas coût est donc un enjeu majeur dans la prise en charge de cette maladie tropicale négligée. La voie métabolique du furanose présente chez Leishmania, mais complètement absente chez l’Homme, est une voie identifiée comme une cible potentielle. Chez Leishmania, cette voie est associée à la production de plusieurs facteurs de virulence, le LPG, et les GIPLs (espèce-dépendant). L’octyle de galactofuranose, analogue du substrat original a été développé et testé dans le cadre d’un modèle d’infection à Leishmania donovani. In vitro, une efficacité doseindépendante contre la forme amastigote a étédémontrée dans un modèle de macrophages humains. In vivo sur modèle murin infecté, l’oct-galf a montré des effets immunomodulateurs marqués, au-delà d’une activité anti-parasitaire plus modeste. Pour comprendre ces résultats, une nouvelle approche mécanistique a été envisagée. L’intelectin-1 (aussi appelé omentin-1) qui fait l’objet de nombreuses publications, est capable de lier les motifs furanosidiques. Les capacités de cette lectine à modifier les voies métaboliques énergétiques via l’AMPK corrèlent avec les résultats retrouvés dans nos modèles d’étude et suggèrent son implication dans l’effet anti-parasitaire observé. / The emergence of Leishmania resistance against various molecules as well as high cost of treatment of leishmaniasis represent a health problem in endemic developing countries. Development of new molecules, effective and at low-cost, is a key challenge in the management of this neglected disease. Furanose pathway is reported in Leishmania parasites, but is completely absent in Human. It was identified as a potential drug target. InLeishmania, this pathway is associated with production of virulence factors, LPG and GIPLs (species-dependant). Octyl-galactofuranose (oct-galf), an analogue of the original substrate, was developed and evaluate in the context of Leishmania donovani infection. In vitro, a dose-independent efficacy against amastigote form was demonstrated in a human macrophages model. Using a murine model, oct-galf showed strong immunomodulatory effects in vivo, while a moderate anti-parasitic effect. In order to better understand theseresults, a new mechanistic approach was considered. Intelectin-1 (also named omentin- 1) relating to a large number of publications, is able to bind furanosidic moieties. Abilities of this lectin to regulate energetic metabolic pathways via AMPK correlate with results we observed in our models and suggest its involvement in the anti-parasitic effects.
10

Investigation of nitric oxide-dependent and independent cytokine-mediated effects in pancreatic islets of Langerhans

John, Nerys Elizabeth January 1999 (has links)
No description available.

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