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Artykuły w czasopismach na temat "Régulation périodique"
Villeneuve, Paul. "Association recherche et régulation (2001) L’année de la régulation. Économie, institutions, pouvoir (2001-2002). Paris, Presses de Sciences Po, périodique annuel, vol. 5, 334 p. (ISBN 2-7246-0857-7)". Cahiers de géographie du Québec 46, nr 129 (2002): 409. http://dx.doi.org/10.7202/023061ar.
Pełny tekst źródłaIppolito, Francesca, i Francesco Seatzu. "Le passage de la soft law à la hard law pour la gestion et la régulation internationale des pesticides : une étape nécessaire ou inutile ?" Revue internationale de droit économique XXXVI, nr 4 (20.07.2023): 21–37. http://dx.doi.org/10.3917/ride.364.0021.
Pełny tekst źródłaRozprawy doktorskie na temat "Régulation périodique"
Notarnicola-Dominguez, Cécile. "La fièvre méditerranéenne familiale : du clonage du gène MEFV à la régulation de son expression". Montpellier 1, 2003. http://www.theses.fr/2003MON1T025.
Pełny tekst źródłaNormand, Sylvain. "Étude des profils cytokiniques et des mécanismes moléculaires induisant l'inflammation dans un modèle mimant les déficits en mévalonate kinase : un rôle central pour l'IL-1 et la caspase-1 dans les fièvres périodiques héréditaires". Poitiers, 2009. http://www.theses.fr/2009POIT1405.
Pełny tekst źródłaJamilloux, Yvan. "Les inflammasomes : de la régulation aux maladies auto-inflammatoires". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1089/document.
Pełny tekst źródłaInflammasomes are intracellular multiprotein complexes that have a major role in innate immunity. Their activation leads to hyperinflammatory cell death. In view of potentially deleterious effects, the inflammasomes are strictly regulated. At present, the understanding of the mechanisms leading to their activation and regulation remains partial. In a first part of this thesis, we used a technique of proximity-dependent biotinylation (BioID) to identify the proteins interacting with the inflammasome. We identified 111 proteins with a close relationship to the inflammasome. Among these 111 proteins, 25% had already been described as proteins interacting with the complex. The identification of a major adaptor of autophagy, p62/sequestosome-1 (p62), led us to focus our attention on its role in the regulation of inflammasome. We first demonstrated that the interaction between p62 and inflammasome was real, at the biochemical level. Subsequently, we proved that p62 was a substrate of the complex and that the activation of the latter led to the cleavage of p62 at the aspartate 329. Finally, we characterized the functional consequences of this cleavage and showed that the protein fragments generated led to a positive or negative regulation of the complex. We thus hypothesized that p62 could regulate the inflammasome differently according to the activator signal. In a second translational part, we looked at the consequences of mutations in the sequence of genes coding components of the inflammasome or proteins regulating it. These are the cause of monogenic auto-inflammatory diseases. These diseases are characterized by recurrent episodes of fever associated with other systemic symptoms. The most frequent is Familial Mediterranean Fever (FMF), with prevalence estimated at between 1 and 5 per 10 000 inhabitants, in France. Mutations of the MEFV gene, encoding pyrin, cause FMF. Pyrine may trigger the formation of a specific inflammasome. Recently, the mechanism of activation of the pyrin inflammasome has been better characterized: toxins (such as toxin B of Clostridium difficile, TcdB) induce the activation of the pyrin inflammasome. We used this new knowledge to investigate the consequences of TcdB on pyrin inflammasome activation in monocytes from FMF patients compared to monocytes from healthy donors. Our results indicate that these mutations induce a decreased threshold of activation of the pyrin inflammasome. In addition, genotype / phenotype correlations indicate a gene-dosage effect, related to the number of mutated alleles. These results open new perspectives for patients with FMF, in understanding the pathophysiology of the diseass and in developing functional diagnostic tests
Yuksel, Can Kutlu. "Simultaneous Time-Delay Compensation and Periodic Control". Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPAST024.
Pełny tekst źródłaThere are various scenarios where one demands a system to operate in a periodic manner and, therefore, a lasting need to have a controller that can meet this demand. Arguably, the most common approach to construct these controllers is the Repetitive Control design paradigm. Nevertheless, if the considered systems suffer from time-delays and/or particular types of periodic signals, then the guidelines from the repetitive control paradigm may be too strict and far-fetched to follow. The thesis seeks alternative ways of constructing the controller in the Internal Model Control framework and studies the structures resembling that of the repetitive control but with different free-variables to conveniently carry over the main ideas for periodic control to time-delay systems. The proposed IMC controller structure consists of a delay-free inverse of the model approximating the system, low-pass filters to ensure the properness of the controller, and time-delays to shape the frequency response of the overall closed-loop. The first design proposition utilizes third-order filters and lumped delays to achieve the periodic regulation of systems approximated by first-order models with time-delay. The motivation behind this is to meet the demand for flexibility and convenience in industrial applications. The second design approach considers a filter constructed based on the zeros and poles desired for the closed-loop sensitivity. A notable advantage of this approach, in contrast to the first one, is that high-order systems with delays can be additionally addressed analytically. The last design considers a distributed delay closely resembling the structures used for high-order repetitive controllers. Nevertheless, a notable difference is that the lumped delay components within the distributed delay are not necessarily related to the period of the targeted signal. The use of the distributed delay makes the controller vary linearly with respect to its parameters, which, as a consequence, favors an optimization-based design approach. Finally, a preliminary theory based on Youla-Kucera parametrization is presented as a future direction for the research. This theory reveals that repetitive controllers and IMC-based controllers can be viewed as a particular realization of the Youla-Kucera parametrization. Moreover, this parameter shows that the proposed design methods for periodic control can be extended to unstable infinite-dimensional time-delay systems
Existují různé scénáře, kdy je vyžadováno, aby systém fungoval periodickým způsobem, a proto existuje trvalá potřeba mít regulátor, který tuto poptávku dokáže splnit. Pravděpodobně nejběžnějším přístupem ke konstrukci těchto regulátorů je návrhové paradigma opakovaného řízení. Pokud však uvažované systémy trpí časovými zpožděními a/nebo určitými typy periodických signálů, pak mohou být pokyny z paradigmatu opakovaného řízení příliš přísné a přitažené za vlasy, než aby se daly dodržovat. Práce hledá alternativní způsoby konstrukce regulátoru v rámci Internal Model Control a studuje struktury podobné repetitivnímu řízení, ale s různými volnými proměnnými, aby bylo možné pohodlně přenést hlavní myšlenky periodického řízení do systémů s časovým zpožděním. Navrhovaná struktura IMC regulátoru sestává z bezprodlevové inverze k modelu aproximujícího systém, dolních propustí pro zajištění správnosti regulátoru a časových zpoždění pro tvarování frekvenční odezvy celkové uzavřené smyčky. První návrh návrhu využívá filtry třetího řádu a koncentrovaná zpoždění pro dosažení periodické regulace systémů aproximované modely prvního řádu s časovým zpožděním. Motivací je splnit požadavky na flexibilitu a pohodlí v průmyslových aplikacích. Druhý návrhový přístup uvažuje filtr konstruovaný na základě nul a pólů požadovaných pro citlivost v uzavřené smyčce. Významnou výhodou tohoto přístupu, na rozdíl od prvního, je to, že systémy vyššího řádu se zpožděním lze dodatečně řešit analyticky. Poslední návrh uvažuje s distribuovaným zpožděním, které se velmi podobá strukturám používaným pro opakující se regulátory vysokého řádu. Nicméně významný rozdíl je v tom, že koncentrované složky zpoždění v rámci distribuovaného zpoždění nemusí nutně souviset s periodou cíleného signálu. Použití zpoždění způsobí, že regulátor se lineárně rozloží s ohledem na jeho parametry, což v důsledku upřednostňuje přístup návrhu založený na optimalizaci. Nakonec je představena předběžná teorie založená na parametrizaci Youla-Kucera jako budoucí směr výzkumu. Tato teorie odhaluje, že na repetitivní regulátory a regulátory založené na IMC lze pohlížet jako na konkrétní realizaci parametrizace Youla-Kucera. Tento parametr navíc ukazuje, že navrhované metody návrhu pro periodické řízení lze rozšířit na nestabilní systémy s nekonečně velkým časovým zpožděním
Lorec, Julien. "Extraction d'informations sur la régulation transcriptionnelle de gènes à partir d'articles biomédicaux". Nantes, 2008. https://archive.bu.univ-nantes.fr/pollux/show/show?id=eca42acd-0ac1-4a1b-8f18-dee48f778526.
Pełny tekst źródłaCharting transcriptionally regulated networks of genes and gathering related molecular mechanisms are important issues for biologists- The molecular biology literature is a very rich mine of experimental information that encompasses the current state of knowledge in the gene expression domain. However, due to its tremendous size, automated methods must be devised in order to explore these data in a systemic way. In this thesis, we propose a method set for mining the molecular biology literature and extracting relevant facts about human gene expression regulation We first present a generic methodology to extract potential named entities from texts. This combines rule-based identification of noun phrases as candidate named entities with matching against manually cleaned dictionaries from public sources. Domain-specific disambiguation techniques are also reported in order to help classifying the true nature of an identified named entity. Then we detail a procedure for both retrieving relevant relationships between named entities and their associated features using a deep syntactic analysis and predicate-argument structures. We show that the acquisition of semantics from syntax can be split into several distinct phases so as to lessen the labour usually associated with the design of domain-specific extraction rules. Finally the performance of the system is evaluated using an annotated corpus of specialized full-text publications. The results are promising and despite the heterogeneous nature of the information to retrieve from the data set, the system exhibits homogeneous and highly-scalable performances
Deflaux, Fanchon. "Les biennales et la "scène internationale" de l'art contemporain : l'opérativité des dispositifs d'énonciation dans la régulation des positions et des valeurs". Avignon, 2008. http://www.theses.fr/2008AVIG1057.
Pełny tekst źródłaThis thesis deals with the operativeness of discourses within the world of international contemporary art. The analysis is based on the cases of discourses about biennials in art magazines. The first part proposes a communicational approach to the analysis of the functioning of biennials by sociologists of art. The linear model of the circulation of artistic values they suggest is called into question. We aim at defining biennials as devices open to the viewer's experience. This leads us to enlarge the perimeter of the analysis to include critical discourses and the media coverage of these exhibitions. The last two parts of the thesis deal with the operativeness of the media coverage of biennials, from the case of contemporary art magazines. The analysis of the « editorial formats » of the discourses about biennials, shows the role of legitimization of such magazines : the power of biennials is produced as an effect of the process of media representation. This results refutes the linear model of the circulation of values suggested by sociologists of art. But the role of art magazines cannot be reduced to the mere function of legitimization : these « devices of representation » by generating tensions and interdependences between the positions of the actors (critics and curators) play a leading role in the regulation of these positions and in the building of artistic values. At the end of the analysis, we propose a new model for the functioning of the world of biennials : biennials and magazines work as enunciative devices, and may be regarded as operators of the institution of « social figuration ». Thus, the world of biennials – or more largely, the international scene of contemporary art – must be regarded as a « discursive figuration » rather as a « field »
Cournac, Axel. "Aspects temporel et spatial dans des systèmes de régulation génétique". Phd thesis, Université Paris-Diderot - Paris VII, 2009. http://tel.archives-ouvertes.fr/tel-00472602.
Pełny tekst źródłaCzęści książek na temat "Régulation périodique"
D’Amours, Martine. "La régulation des marchés du travail indépendant: le cas des journalistes indépendants de la presse écrite périodique". W Innovations sociales dans le travail et l’emploi, 209–34. Les Presses de l’Université de Laval, 2006. http://dx.doi.org/10.1515/9782763714219-009.
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