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Статті в журналах з теми "Dynamique du génome":
Marie-José BUTEL and Anne-Judith WALIGORA-DUPRIET. "ÉTABLISSEMENT DU MICROBIOTE INTESTINAL." ACTUALITES PERMANENTES EN MICROBIOLOGIE CLINIQUE 18, no. 01 (March 1, 2019): 14. http://dx.doi.org/10.54695/apmc.18.01.1508.
SARRADIN, P., and H. LAUDE. "Diversité des souches d’Encéphalopathie Spongiforme Transmissible chez les ruminants : enjeux, bilan et perspectives." INRAE Productions Animales 17, HS (December 19, 2004): 13–20. http://dx.doi.org/10.20870/productions-animales.2004.17.hs.3617.
MAKOSSO, Béthuel. "Efficacité et efficience statique et dynamique dans la régulation des télécommunications." L'Actualité économique 92, no. 4 (July 12, 2017): 733–52. http://dx.doi.org/10.7202/1040504ar.
Anderson, Maureen, Ashok Chhetri, Edith Halyk, Amanda Lang, Ryan McDonald, Julie Kryzanowski, Jessica Minion, and Molly Trecker. "Une éclosion de COVID-19 associée à un centre d’entraînement physique en Saskatchewan : leçons pour la prévention." Relevé des maladies transmissibles au Canada 47, no. 11 (November 10, 2021): 538–44. http://dx.doi.org/10.14745/ccdr.v47i11a08f.
Aïssa, Safouane Mohamed Ben, and Olivier Musy. "La persistance de l'inflation dans les modèles néo-keynésiens." Recherches économiques de Louvain 71, no. 2 (January 2005): 175–91. http://dx.doi.org/10.1017/s0770451800008289.
Létocart, Lauriane. "Le tourisme littoral dans le Land de Mecklembourg-Poméranie-Occidentale : marqueur d’identités dans la Baltique." Connexe : les espaces postcommunistes en question(s) 6 (February 12, 2021): 76–102. http://dx.doi.org/10.5077/journals/connexe.2020.e336.
Lemoine, G. "Le verdissement des espaces urbains déconstruits et temporairement disponibles peut-il optimiser la biodiversité, en limiter les coûts de gestion voire les contraintes réglementaires ?" Techniques Sciences Méthodes, no. 10 (October 2019): 73–79. http://dx.doi.org/10.1051/tsm/201910073.
Rat-Asper, Olivier, Corinne Tanguy, and François Coléno. "Appropriation d’un outil de gestion et dynamique de stratégie collective." Revue Française de Gestion 48, no. 306 (September 2022): 93–108. http://dx.doi.org/10.3166/rfg306.93-108.
Bezzon, Bastien. "La structure de gouvernance de réseaux territorialisés d’organisations, actrice de l’entrepreneuriat territorial." Entreprendre & Innover 58-59, no. 1 (April 4, 2024): 52–63. http://dx.doi.org/10.3917/entin.058.0052.
Du Tertre, Christian. "Création de valeur et accumulation ; capital et patrimoine." Économie appliquée 60, no. 3 (2007): 157–76. http://dx.doi.org/10.3406/ecoap.2007.1852.
Дисертації з теми "Dynamique du génome":
Ravel, Christophe. "Structure et dynamique du génome de Leishmania (protozoa, kinetoplastida)." Montpellier 1, 1996. http://www.theses.fr/1996MON1T004.
Chelaifa, Houda. "Spéciation allopolyploïde et dynamique fonctionnelle du génome chez les Spartines." Phd thesis, Université Rennes 1, 2010. http://tel.archives-ouvertes.fr/tel-00536586.
Giraud, Delphine. "Dynamique des éléments transposables et évolution du génome des spartines polyploïdes." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1B057.
We explored the consequences of divergent speciation or reticulate evolution (resulting from hybridization) during diversification of the Spartina genus in the last 6-10 MY, based on the analysis of repeated sequences, their expression and regulation. Transposable element amounts, genome size, and phylogenetic relationships were found correlated, although differential dynamics of specific transposable element families or satellite sequences were encountered according to lineages, and to divergence times following the speciation events. The abundance of transposable elements appears related to their level of expression and the role of small RNAs in their control. This regulation is rapidly established following interspecific hybridization and explains the "genomic quiescence" (absence of transposable element “burst”) detected in the recent allododecaploid S. anglica. Annotations of transposable elements and small RNAs, new reference transcriptomes generated for different species during this work represent additional resources that will allow a more comprehensive exploration of the Spartina genome history and dynamics for a better understanding of the genomic mechanisms involved in the adaptation and ecology of these “ecosystem engineers” species
Ceschia, Audrey. "Dynamique de la réplication et instabilité du génome chez "S. Cerevisiae"." Montpellier 2, 2005. http://www.theses.fr/2005MON20100.
Poli, Jérôme. "Dynamique de la réplication du génome et réponses cellulaires au stress réplicatif." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20233.
A fluctuating environment is a powerful mean of selection for living organisms, which evolved complex signaling networks to integrate these variations and direct swift and efficient cellular responses. The aim of my work is the identification and characterization of molecular mechanisms involved in the tolerance of replicative stress and DNA damage. First, we show that changes in dNTP pools affect several aspects of replication dynamics in budding yeast. dNTP levels are limiting for normal S-phase progression and determine the temporal program of replication during a replicative stress. Interestingly, we also observed that chromosomal instability (CIN) mutants display expanded dNTP pools due to the constitutive activation of the DNA damage checkpoint. Since increased dNTP levels promote forks progression in the presence of DNA lesions, we propose that CIN mutants adapt to chronic replicative stress by upregulating dNTP pools. Secondly, we bring new lights on the role of Crt10 in vivo, which has been initially identified as a negative regulator of Ribonucleotide Reductase (RNR) genes expression. Deletion of CRT10 neither leads to expanded dNTP pools, nor to a massive deregulation of RNR genes, although crt10Δ cells exhibit faster fork progression. The crt10Δ mutant accumulates at the G1/S transition and exhibits a strong defect of origin firing that could account for its replication phenotype. Moreover, we observed a global decrease in ribosome biogenesis in crt10Δ. The physical interaction of Crt10 with several members of the ribosome biogenesis pathway and its role in the Rtt101-Mms1 complex suggest that Crt10 may regulate ribosome levels in vivo. At last, we identified MRX (Mre11-Rad50-Xrs2) as a bona fide member of the transcription termination of non-coding RNA (ncRNA). ChIP-seq reveals that MRX localized at the same loci than the Nrd1-Nab3-Sen1 complex in vegetative growth. rad50Δ cells exhibit transcriptional read-through and upregulation of unstable cryptic transcripts (CUTs) leading to a misregulation of their associated gene. Finally, MRX seems to be involved in the resolution of branched structures emanating from collision between transcription and replication machineries, as it is the case for Sen1
David, Gabriel. "Structure et dynamique du cytoplasme auto-organisé : exemple par la ségrégation du génome bactérien." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS098.
Cellular organisms appear organized. Bacteria use membraneless compartments to confine chemical reactions in space and time. There is a general paradigm of intracellular space self-organization that distinguishes between self-assembly, molecular structures assembled by passive phase transition mechanisms, and dissipative structures, generated for example by reaction-diffusion processes. If self-assemblies correspond to the evolution towards thermodynamic equilibrium, dissipative structures are manifestations of an out-of-equilibrium energy cost. We illustrate this paradigm by studying the segregation of bacterial genome, in this case the F-plasmid segregation of Escherichia coli, based on the ParABS partition system. Segregation is a crucial step in the bacterial cell cycle since it ensures the transmission of genetic information in daughter bacteria before division.The ParABS system consists of a parS centromeric sequence; a ParB protein which is able to bind to DNA, specifically on the parS sequence and not specifically elsewhere; and a ParA ATPase protein than can bind to DNA. Interactions between ParB proteins on DNA and specific adsorption on the parS sequence lead to the formation of a three-dimensional focus called the ParBS complex located around the parS sequence. Interactions between ParA and ParB proteins lead to the positioning of this complex at the center of the cell cytoplasm. After replication, two ParBS complexes exist and are segregated by the action of ParA proteins at positions 1/4 and 3/4 of the intracellular space.We first seek to explain the formation of ParBS complexes by a passive phase separation mechanism between high- and low-density states of ParB proteins in space. We construct two statistical physics models using tools borrowed from the physics of phase transitions. Our second approach rigorously defines all the elements of the biological system consisting of the interacting DNA-polymer and ParB proteins and allows us to formulate a first-order phase transition existence criterion that is verified by the DNA. We can draw the phase diagrams of this transition. These two models allow us to argue that the physiological thermodynamic regime of this biological system is a regime of metastable coexistence in ParB proteins on DNA. The parS sequence plays the role of a defect or nucleation seed. We use a third approach to explain the relationship between the three-dimensional and DNA distributions of ParB proteins around the parS sequence.We try to explain the fluorescence recovery curves from photobleaching experiments on ParBS complexes. We construct an in silico photobleaching method, i.e. we reproduce these recovery curves from a phenomenological equation solved numerically. We then develop a system of equations that describe the evolution of proteins on DNA from the previous statistical physical approach to produce an in silico photobleaching taking into account that ParBS complexes are the result of phase separation. We show that a pure passive system does not allow photobleaching experiments because of the Ostwald maturation undergone by the complexes. We correct this approach by including ParA proteins and their biochemical cycle in our simulations. We show that the interactions between ParA and ParB proteins and the hydrolysis of ATP allows the survival of several ParBS complexes thanks to an inversion mechanism of Ostwald's ripening. This fundamental approach explains the positioning of ParBS complexes during segregation
Theulot, Bertrand. "Étude de la dynamique de réplication du génome de Saccharomyces cerevisiae par séquençage nanopore." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS565.
In eukaryotes, DNA replication initiates from multiple origins activated throughout S-phase. Each origin forms two diverging replication forks that synthesize DNA. Although genome duplication depends on a proper fork progression, the governing factors are poorly understood, and little is known about replication fork velocity variations along eukaryotic genomes. My thesis project aimed at generating in the budding yeast S. cerevisiae the first ever genome-wide map of fork progression based on individual fork rates. Our laboratory has recently introduced a high-throughput, high-resolution, single molecule-based replication mapping technique relying on the detection by nanopore sequencing of 5-bromo-2’-deoxyuridine (BrdU), a thymidine analogue incorporated in replicating DNA. In collaboration with bioinformaticians, I have developed NanoForkSpeed (NFS), a method capable of positioning, orienting and extracting the velocity of replication forks from BrdU tracks synthesized during a brief pulse-labelling of asynchronously growing cells. In addition, I have engineered the BT1 yeast strain which exhibits highly efficient BrdU incorporation and wild-type growth, allowing the measurement of fork progression in physiologically relevant conditions. NFS retrieves previous S. cerevisiae mean fork speed estimates (≈2 kb/min) and precisely quantifies speed changes in cells with altered replisome progression or exposed to hydroxyurea. The positioning of >125,000 fork velocities provides a genome-wide map of fork progression based on individual fork rates, showing a uniform fork speed across yeast chromosomes except for a marked slowdown at known pausing sites, namely centromeres, telomeres, the ribosomal DNA and some tRNA genes. During my PhD, I have also created Nanotiming, a novel method to study the replication timing (RT) of S. cerevisiae's genome. Nanotiming relies on the quantification of BrdU rates in nanopore reads: since thymidine concentration increases during S-phase in yeast, BrdU incorporation will be lower in late replicating than in early replicating regions. In contrast to reference techniques based on DNA copy number analysis, which are either low-resolution or difficult to implement as they require cell synchronization or sorting, Nanotiming only demands the labeling of asynchronously growing yeast cells with BrdU during one doubling. RT profiles obtained both in wild-type cells and in a mutant strain where Rif1, a key RT regulator, has been inactivated are remarkably similar to those established by high-resolution methods, validating my approach. In addition to its simplicity, Nanotiming also paves the way for high-throughput analysis of single molecule RT and in-depth study of inter-individual RT variability
Le, Rouzic Arnaud. "Modélisation de la dynamique évolutive des éléments transposables : naissance, vie et mort d'un parasite génomique." Paris 11, 2005. http://www.theses.fr/2005PA112201.
Transposable elements are one of the main components of the genomes, and they can be found in almost every living organism. However, except in a few "molecular domestication" events, they seem to maintain themselves in the genomes thanks to their own multiplication ability, and they are thus generally considered as "parasitic" DNA sequences. In the present work, we have investigated, through a simulation software, a population genetics model of a transposable element family. The different stages of the "life cycle" of the element have been studied, from the very first generations following its arrival in a new species, to its long-term co-evolution with the other elements and genes in the genome. The results presented here highlight the complexity of the evolution of these genomic parasites, and several realistic evolutionary scenarios can be proposed. In the most cases, a stable equilibrium state appears to be unlikely, and the invasion of a transposable elements family seems to be a dynamic process, depending not only on the features of the element, but also on the interactions existing between the host genome and its parasitic DNA sequences
Wirth, Bénédicte. "Dynamique et évolution d'ORFs dupliquées chez les levures hémiascomycètes : Etude de la famille multigénique DUP." Université Louis Pasteur (Strasbourg) (1971-2008), 2006. http://www.theses.fr/2006STR13070.
Tempel, Sébastien. "Dynamique des hélitrons dans le génome d'arabidopsis thaliana : développement de nouvelles stratégies d'analyse des éléments transposables." Rennes 1, 2007. https://tel.archives-ouvertes.fr/tel-00185256.
Helitrons are the main transposable element in Arabidopsis. We are developped a new syntactical model for detect them in genome. We have shown the relationship between autonomous and nonautonomous helitrons and discovered new families. Analysis of their internal sequence shows a strong variability. We have also created a new tool nammed DomainOrganizer which can visualize the modularity of nonautonomous transposable elements. This study have permit to understand the evolution of helitron family. Last, we have begin to understand the regulatory effect of helitrons
Книги з теми "Dynamique du génome":
Gaillard, Marcel. Mécanique générale. Paris: Eyrolles, 1990.
Clifford, Michael. An introduction to mechanical engineering. London: Hodder Education, 2009.
Wickert, Jonathan A. An introduction to mechanical engineering. 2nd ed. Southbank, Vic: Thomson, 2006.
Cheng, Franklin Y. Matrix analysis of structural dynamics: Applications and earthquake engineering. New York: Marcel Dekker, 2000.
International Conference on Soil Dynamics and Earthquake Engineering (5th 1991 Karlsruhe, Germany). Soil dynamics and earthquake engineering V. Southampton, UK: Computational Mechanics Publications, 1991.
Manolis, Papadrakakis, ed. Computational structural dynamics and earthquake engineering. Boca Raton: CRC Press, 2009.
R, Backhurst J., Harker J. H. 1937-, Coulson J. M, and Richardson J. F, eds. Coulson & Richardson's Chemical engineering. 6th ed. Oxford: Butterworth-Heinemann, 1999.
Cheng, Franklin Y. Matrix Analysis of Structural Dynamics: Applications and Earthquake Engineering. Taylor & Francis Group, 2017.
Cheng, Franklin Y. Matrix Analysis of Structural Dynamics: Applications and Earthquake Engineering. Taylor & Francis Group, 2017.
Cheng, Franklin Y. Matrix Analysis of Structural Dynamics: Applications and Earthquake Engineering. Taylor & Francis Group, 2017.
Тези доповідей конференцій з теми "Dynamique du génome":
Levacher, Daniel, and Alain Grovel. "Un pénétromètre carottier dynamique largable." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1990. http://dx.doi.org/10.5150/jngcgc.1990.027-l.
CASTELLE, Bruno, and Giovanni COCO. "Dynamique instationnaire des courants d’arrachement de cap." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2014. http://dx.doi.org/10.5150/jngcgc.2014.004.
Mimouni, Nabil, and Daniel Levacher. "Étude et conception d'un pénétromètre carottier dynamique largable." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1998. http://dx.doi.org/10.5150/jngcgc.1998.027-m.
Benamar, Ahmed. "Un modèle pour l'interaction latérale dynamique argile-pieu." In Journées Nationales Génie Côtier - Génie Civil. Presses Universitaires de Perpignan, 1994. http://dx.doi.org/10.5150/jngcgc.1994.023-b.
BAILLY DU BOIS, Pascal, and Bertrand POUDEROUX. "Système de prélèvement en profondeur dynamique et en continu." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2012. http://dx.doi.org/10.5150/jngcgc.2012.059-b.
AGEORGES, Valentin, Jorge PEIXINHO, Gaële PERRET, Ghislain LARTIGUE, and Vincent MOUREAU. "Dynamique de l’écoulement autour d’un cylindre vertical partiellement immergé." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2020. http://dx.doi.org/10.5150/jngcgc.2020.003.
Stumpp, C., and R. Dupain. "Contribution à l'étude de la dynamique littorale en milieu estuarien." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1990. http://dx.doi.org/10.5150/jngcgc.1990.023-s.
Serra, J. "Quelques exemples de dynamique sédimentaire le long du littoral catalan." In Journées Nationales Génie Côtier - Génie Civil. Presses Universitaires de Perpignan, 1994. http://dx.doi.org/10.5150/jngcgc.1994.043-s.
Grovel, Alain. "Un exemple des apports scientifiques des technologies de dynamique sédimentaire." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1996. http://dx.doi.org/10.5150/jngcgc.1996.037-g.
Bonneton, Philippe. "Dynamique non-linéaire des vagues en zone de surf interne." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2002. http://dx.doi.org/10.5150/jngcgc.2002.007-b.