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Статті в журналах з теми "Caractérisation du cycle circadien"
HUBAULT, B., E. SETROUK, O. ZAMBROWSKI, A. DUCASSE, and C. ARNDT. "Circadien cycle and chronic central serous chorioretinopathy." Acta Ophthalmologica 90 (August 6, 2012): 0. http://dx.doi.org/10.1111/j.1755-3768.2012.4226.x.
Повний текст джерелаClairambault, J., S. Mischler, and B. Perthame. "Un modèle du cycle cellulaire et de son contrôle circadien." Pathologie Biologie 55, no. 3-4 (April 2007): 211–12. http://dx.doi.org/10.1016/j.patbio.2006.12.011.
Повний текст джерелаGonzalez Rodriguez, Elena, Dr Angela Hernandez, Charna Dibner, Bettina Koehler Ballan, and Antoinette Pechere-Bertschi. "Implications cliniques du [b]cycle[/b] circadien de la pression artérielle." Revue Médicale Suisse 8, no. 353 (2012): 1709–15. http://dx.doi.org/10.53738/revmed.2012.8.353.1709.
Повний текст джерелаBoghen, Andrew D., and Hubert J. Ceccaldi. "Cycle circadien des acides amines libres et des proteines de l'hemolymphe chez Cancer pagurus." Biochemical Systematics and Ecology 15, no. 4 (July 1987): 479–86. http://dx.doi.org/10.1016/0305-1978(87)90064-0.
Повний текст джерелаStefanelli, Bruno. "Une caractérisation de technologie CMOS à l’usage d’étudiants en cycle d’ingénieur." Annales Des Télécommunications 46, no. 9-10 (September 1991): 496–500. http://dx.doi.org/10.1007/bf02998689.
Повний текст джерелаAbdallah BADIANE, Yakhya Ben, and Bienvenu SAMBOU. "Caractérisation de l’ichtyo faune de l’AMP de JoalFadiouth (Sénégal)." Journal of Applied Biosciences 154 (October 31, 2020): 15950–59. http://dx.doi.org/10.35759/jabs.154.11.
Повний текст джерелаPortugais, Jean, and Olga Ranzenhofer. "Îles de la Nuit." Circuit 11, no. 2 (October 2, 2002): 15–54. http://dx.doi.org/10.7202/004688ar.
Повний текст джерелаPostel-Pellerin, J., V. Della Marca, J. D. Aguirre-Morales, R. Bouchakour, and R. Laffont. "Simulation TCAD, fabrication, caractérisation électrique et extraction des paramètres physiques du procédé MOS." J3eA 23 (2024): 1016. http://dx.doi.org/10.1051/j3ea/20241016.
Повний текст джерелаGeoffre, Thierry. "Profils d’acquisition de la morphographie au cycle 3. Vers une caractérisation des parcours des élèves ?" Repères, no. 49 (November 30, 2014): 147–68. http://dx.doi.org/10.4000/reperes.723.
Повний текст джерелаBécot, Anaïs, Maribel Lara Corona, and Guillaume van Niel. "L’imagerie in vivo." médecine/sciences 37, no. 12 (December 2021): 1108–15. http://dx.doi.org/10.1051/medsci/2021210.
Повний текст джерелаДисертації з теми "Caractérisation du cycle circadien"
Burckard, Odile. "Analyse mathématique de la dynamique du cycle et de la synchronisation des horloges circadiennes périphériques des mammifères." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ4046.
Повний текст джерелаCircadian clocks, present in the cells of virtually all living beings, are essential for the rhythmic regulation of many biological processes. The healthy functioning of organisms depends on the phase coherence of these genetic oscillators. However, in mammals, the mechanisms underlying the synchronization of peripheral clocks remain poorly understood. This thesis focuses on the study of the synchronization of mammalian peripheral circadian clocks and on the analysis of circadian cycle dynamics.First, we hypothesize that peripheral clocks can achieve synchronization through coupling mechanisms, comparable to those observed between central clock cells. We investigate this hypothesis numerically, using a model of a network of coupled peripheral clocks, constructed with ordinary differential equations. Our simulations lead to the identification of factors promoting the synchronization of circadian oscillators. Secondly, we focus on the dynamics of a single circadian cycle, which we characterize theoretically through the construction of a piecewise affine model approximating a continuous model including mass action terms. Our approach is based on the identification of a sequence of periodic transitions between regions of the discretized phase space of the continuous model, and on the development of an algorithm generating real threshold values that guarantee a periodic trajectory for the oscillators of the piecewise affine model and the reproduction of the main qualitative properties of circadian cycles. We then propose a general and automated method for characterizing the behaviour of any circadian cycle whose time series of CLOCK:BMAL1, REV-ERB and PER:CRY protein (complexes) are known. Our method provides a benchmark for testing and comparing the dynamics of different circadian cycles, while highlighting properties they share. Finally, these methods allow us to better understand the influence of coupling on the cycle dynamics of a network of peripheral clocks
Barbot, Willy. "Variation circadienne et induction avec l'âge de l'expression d'un rétrotransposon IAP de souris : caractérisation du site d'insertion proviral et "effet de position"." Paris 6, 2002. http://www.theses.fr/2002PA066022.
Повний текст джерелаAmdaoud, Malika. "Stabilité du rythme circadien des cyanobactéries : investigation d’un couplage entre oscillateurs." Phd thesis, Grenoble 1, 2007. http://www.theses.fr/2007GRE10051.
Повний текст джерелаThe circadian clock is a self-sustained biological clock that can be found in many organisms such as mammals, insects, plants, and even cyanobacteria. This rhythm allows living organisms to coordinate their metabolic and behavioural activities with the Earth’s daily rotation. The free-running period of this clock is close to 24h h. The cyanobacteria Synechococcus elongatus sp. PCC7942 is the simplest organism that has this circadian clock. And in spite of cellular division (up to 3 divisions per 24 h), the oscillations persist among a population of bacteria. Moreover, single-cell experiments showed that the oscillations were persisting with a correlation time of several months. We thus raised the question of the origin of such a robust oscillator. Indeed, the cyanobacteria are submitted to various sources of noise, and in spite of these fluctuations, the oscillations remain robust. We therefore investigate the potential coupling between oscillators, which could reinforce the stability of oscillations. By using strains carrying a luciferase reporter, we access to the circadian clock of cyanobacteria. We also used a theoretical model of week interaction between oscillators, this model taking into account the phase diffusion of oscillations. By confronting experimental measures with numerical simulations, we managed to estimate an upper limit to the potential coupling strength between oscillators. By comparing the phase diffusion constant with the coupling strength, we showed that the robustness of the circadian clock of cyanobacteria is a built-in property
Sénécal, Pierre. "Caractérisation du cycle régénération – réjuvénation de catalyseurs d’hydrotraitement additivés." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10098.
Повний текст джерелаThe regeneration (mild calcination) of used hydrodesulfurization catalysts is an economically and ecologically interesting procedure as it permits the re-use of these catalysts in the industrial plant instead of recycling them. But these regenerated catalysts are usually less active than the original materials. To overcome this problem, these regenerated catalysts can be treated with various organic agents, this process being called “rejuvenation”. To improve this rejuvenation procedure it is necessary to understand firstly, why the regenerated catalysts are less active and secondly, what is the role of the organic agents. With these aims, this work was performed on CoMoP/Al2O3 hydrodesulfurization catalysts. The regeneration step is responsible for the formation of weakly sulfidable species such as CoMoO4 and CoAl2O4 which can explain the decrease in performance of these catalysts. The study of model catalysts and catalysts which were regenerated in the laboratory or industrially show that some organic compounds permit the redispersion of all or part of these undesirable species depending on the solvent used for their impregnation. This redispersion seems to be due to metal complexation with the organic agents. The role of these agents on the Co and Mo sulfidation is also discussed. Due to the metals redispersion and the effect on the Co and Mo sulfidation, the rejuvenation step leads to an increase in the number of active sites and thus to an enhancement of the straight run gas oil HDS catalytic performance (which has been evaluated using a pilot unit)
Touron-Riflart, Nathalie. "Rythme circadien de temperature corporelle au cours du cycle veille-sommeil chez l'homme : influence de l'heure et des stades de sommeil." Paris 6, 1988. http://www.theses.fr/1988PA066571.
Повний текст джерелаTouron-Riflart, Nathalie. "Rythme circadien de température corporelle au cours du cycle veille-sommeil chez l'homme influence de l'heure et des stades de sommeil /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376189360.
Повний текст джерелаBeloin-Saint-Pierre, Didier. "Vers une caractérisation spatiotemporelle pour l'analyse du cycle de vie." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00857936.
Повний текст джерелаSadani, Zouaoui. "Conception de microsystemes pour la manipulation et la caractérisation d'un ovocyte." Besançon, 2004. http://www.theses.fr/2004BESA2016.
Повний текст джерелаFaussillon, Marine. "Caractérisation du rôle du chromosome 12 dans l'étiologie du néphroblastome." Paris 11, 2004. http://www.theses.fr/2004PA112068.
Повний текст джерелаNephroblastoma, or Wilms' tumor (WT), is one of the most frequent pediatric solid tumors, but little is known about the genetic events involved. By differential gene expression analyses between tumors and normal kidneys, I demonstrated that alteration at the G1/S cell cycle control point, via a specific overexpression of the CCND2 and CDK4 genes, is of biological significance in WTs. These genes map on chromosome 12, at 12p13 and 12q13 respectively. Although trisomy 12 is one of the most frequent alterations in WTs (20% of cases), the underlying mechanisms remained unstudied in this tumor. To investigate the molecular mechanisms responsible for CCND2 and CDK4 overexpression, I quantified CCND2 and CDK4 copy numbers. Overrepresentation of these sequences was shown in 61% of the tumors, either by chromosome 12 duplication, or by clonal amplification of both 12p and 12q regions. This is the first evidence of such a mechanism in WT. CCND2 and CDK4 overexpression and genomic abnormalities were not associated, indicating that these genes are not the targets of the amplification process. Interestingly, statistical analyses highlighted a significant correlation between amplification of both the 12p13 and 12q13 regions and fatal outcome (p=0. 02). These results strongly suggest that chromosome 12 is a relevant actor in nephroblastoma. Identification of the genes associated with an increased risk of death and establishment of molecular profiles with a prognostic value will allow, at end, a customized treatment
Débarges, Béatrice. "L'axe hypothalamo-hypophyso-surrénalien dans la fibromyalgie." Mémoire, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/6665.
Повний текст джерелаКниги з теми "Caractérisation du cycle circadien"
Université Pierre et Marie Curie, ed. Caractérisation biologique et chimique du VIP monoiodé: Mise en évidence du cycle du VIP et de la désensibilisation réversible par le VIP des "cellules HT 29". Grenoble: A.N.R.T. Université Pierre Mendès France Grenoble 2, 1986.
Знайти повний текст джерелаSiegel, Jerome. The Neural Control of Sleep and Waking. Springer, 2002.
Знайти повний текст джерела(Foreword), J. M. Siegel, ed. The Neural Control of Sleep and Waking. Springer, 2002.
Знайти повний текст джерелаЧастини книг з теми "Caractérisation du cycle circadien"
CUGERONE, Alexandre, Bénédicte CENKI, Émilien OLIOT, and Manuel MUÑOZ. "Structure et texture des minéralisations Pb-Zn dans la zone axiale des Pyrénées." In Évolution des Pyrénées au cours du cycle varisque et du cycle alpin 1, 87–109. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9124.ch2.
Повний текст джерелаЗвіти організацій з теми "Caractérisation du cycle circadien"
Jocelyn, Sabrina, Élise Ledoux, Damien Burlet-Vienney, Isabelle Berger, Isvieysys Armas Marrero, Chun Hong Law, Yuvin Chinniah, et al. Identification en laboratoire des éléments essentiels au processus d’intégration sécuritaire de cellules cobotiques. IRSST, August 2024. http://dx.doi.org/10.70010/qkwy4060.
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