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Artykuły w czasopismach na temat "Transfert de l'adaptation"
Bracke, Danièle. "Vers un modèle théorique du transfert : les contraintes à respecter". Articles 24, nr 2 (30.04.2008): 235–66. http://dx.doi.org/10.7202/502010ar.
Pełny tekst źródłaAu, Kenneth Kim-Lung. "Cultural Transfer in Advertisement Translation". Babel. Revue internationale de la traduction / International Journal of Translation 45, nr 2 (20.08.1999): 97–106. http://dx.doi.org/10.1075/babel.45.2.01au.
Pełny tekst źródłaLuengo Gascón, Elvira. "Érase, es y será... Aprender a ser en las enciclopedias para niños". Tropelías: Revista de Teoría de la Literatura y Literatura Comparada, nr 23 (26.01.2015): 90. http://dx.doi.org/10.26754/ojs_tropelias/tropelias.201523999.
Pełny tekst źródłaLavoie, Guillaume. "Sur trois contraintes à l'adaptation cinématographique d'À la recherche du temps perdu de Marcel Proust : les cas de Visconti, Pinter, Schlöndorff et Ruiz". @nalyses. Revue des littératures franco-canadiennes et québécoise, 12.01.2016. http://dx.doi.org/10.18192/analyses.v11i1.1481.
Pełny tekst źródłaRozprawy doktorskie na temat "Transfert de l'adaptation"
Peyrache, Jean-Philippe. "Nouvelles approches itératives avec garanties théoriques pour l'adaptation de domaine non supervisée". Thesis, Saint-Etienne, 2014. http://www.theses.fr/2014STET4023/document.
Pełny tekst źródłaDuring the past few years, an increasing interest for Machine Learning has been encountered, in various domains like image recognition or medical data analysis. However, a limitation of the classical PAC framework has recently been highlighted. It led to the emergence of a new research axis: Domain Adaptation (DA), in which learning data are considered as coming from a distribution (the source one) different from the one (the target one) from which are generated test data. The first theoretical works concluded that a good performance on the target domain can be obtained by minimizing in the same time the source error and a divergence term between the two distributions. Three main categories of approaches are derived from this idea : by reweighting, by reprojection and by self-labeling. In this thesis work, we propose two contributions. The first one is a reprojection approach based on boosting theory and designed for numerical data. It offers interesting theoretical guarantees and also seems able to obtain good generalization performances. Our second contribution consists first in a framework filling the gap of the lack of theoretical results for self-labeling methods by introducing necessary conditions ensuring the good behavior of this kind of algorithm. On the other hand, we propose in this framework a new approach, using the theory of (epsilon, gamma, tau)- good similarity functions to go around the limitations due to the use of kernel theory in the specific context of structured data
Mérignac, Olivier. "L'impact du conjoint et de la famille sur l'adaptation des cadres expatriés : Olivier Mérignac". Lyon 3, 2002. http://www.theses.fr/2002LYO33034.
Pełny tekst źródłaGauthier, Jérémy. "Génomique de l'adaptation des guêpes parasitoïdes du genre Cotesia : rôle du bracovirus". Thesis, Tours, 2017. http://www.theses.fr/2017TOUR4033.
Pełny tekst źródłaThe wasps from the Cotesia genus are endoparasitoids of Lepidoptera. The larvae grow inside the host body and alter its physiology to escape the host immune defenses. To achieve that, these wasps developed a particularly original strategy: virus domestication. Named Bracovirus, it originates from a free-living virus stably integrated into the wasp genome. The wasp uses this bracovirus to produce viral particles containing virulence genes, once expressed in the host, allowing larval development and parasitic success. The aim of my thesis was to uncover, using evolutionary genomic approaches, the role of the bracovirus in the evolutionary history of theses wasps. At the population level, Cotesia sesamiae, used in Africa as biocontrol agents, is structured in several populations, including one strictly associated to a single host species
Fréchin, Mathieu. "Identification et rôles des partenaires de la voie de transamidation de la mitochondrie de Saccharomyces cerevisiae dans l'adaptation à la respiration". Strasbourg, 2010. http://www.theses.fr/2010STRA6101.
Pełny tekst źródłaThe formation of cytoplasmic (c) glutaminyl (Q)-tRNAQ allowing insertion of Q into proteins during ribosome-mediated translation proceeds via direct tRNA aminoacylation by a specific Q-tRNA synthetase (QRS). However, the synthesis of mitochondrial (m) Q-tRNAQ required for the specific organellar translation system is still matter of debate. In fact, no mQRS can be found in any eukaryotic genomes sequenced so far. Thus, it is almost impossible to predict which pathway, direct or indirect, generates this organellar aminoacyl (aa)-tRNA species in a given eukaryote. Eukaryotes have, a priori, two possibilities to generate a Q-mtRNAQ: either they use the direct pathway via the import the cQRS or they use an indirect tRNA-dependent transamidation pathway which implies the presence of a non discriminating (nd) ERS and of a tRNA-dependent amidotransferase (AdT) in the organelle. We have shown that Pet112 is a part of a yeast mitochondrial amidotransferase, but also that the necessary ndERS is the cytoplasmic form of ERS (nd-cERS) which is able to be localized both in the cytoplasm and the mitochondrion. The dual localization of the nd-cERS is controlled by Arc1p, the cytoplasmic partner of the nd-cERS. This project represents an important breakthrough in the fields of aminoacylation and mitochondrial import. We describe a new strategy: the use of a cytosolic anchoring platform, for the dual localization of a single translational product, suggesting that any protein in a complex, even if well characterized in a specific subcellular compartment, might be able to reach other compartments upon release from the complex. We then show that ARC1 transcription is controlled by the Snf1/4 pathway that decreases Arc1p upon adaptation to respiration. However, its two partners, cERS and cMRS, stay stably expressed leading to an increase of the free cMRS and cERS pools. These released forms are then imported in the nucleus and the mitochondria respectively, in order to synchronize expression of respiratory chain (RC) partners. RC partners are encoded in a split manner in the nucleus and the mitochondrion, cMRS promotes transcription of a subset of the RC genes encoded by the nucleus, whereas cERS increase the translation rate of mitochondrial-encoded partners of the RC. By proving that Arc1p is an essential relay for the Snf1/4 pathway we propose for the first time a mechanism explaining how synchronization of the RC gene expression is achieved. This represents the most important conceptual change we made, in which we show the advantages of the dynamic control of a protein complex as a strategy to synchronize gene expression of genomes located in different compartments
Chuzeville, Sarah. "Caractérisation des fonctions codées par les éléments intégratifs conjugatifs (ICE) intégrés dans un gène codant un ARNt lysine chez Streptococcus agalactiae : rôle dans le maintien des ICE, l'adaptation et la virulence de l'hôte". Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0261/document.
Pełny tekst źródłaHorizontal gene transfer is a rapid mechanism of evolution. Integrative and conjugative elements (ICEs) are genomic islands which can transfer by conjugation to recipient bacteria. Streptococcus agalactiae is a human and animal opportunistic pathogen that is responsible for major health and economic problems. Studies revealed the presence of numerous ICEs in S. agalactiae, in particular at the 3' end of a tRNALys encoding gene. The functionality of the element present in strain S. agalactiae 515 was demonstrated and was thus chosen as a model for this study. This work focused on the characterization of adaptive and virulence functions encoded by ICE_515_tRNALys and their transfer to other species. Results indicated that this ICE confers adhesion properties to host, increases biofilm formation and may be involved in cell aggregation. A new protein belonging to the antigens I/II family is involved in fibronectin binding and contributes to the biofilm phenotype. In addition, a new co-hemolytic CAMP factor encoded by ICE_515_tRNALys, which could be involved in virulence and bacterial survival, was identified and characterized. These virulence factors are functional in other bacterial species. This work also revealed the prevalence and evolutionary dynamics of ICE belonging to the family of ICE_515_tRNALys and adaptive functions encoded by these elements in several species of streptococci. In conclusion, ICEs of the ICE_515_tRNALys family represent vectors of phenotypic features important for virulence and survival in streptococci
Fawaz, Yaser. "Composition et exécution contextualisées de services pour des environnements pervasifs : une approche dirigée par les données : "application à l'adaptation et au transfert de contenus"". Lyon, INSA, 2010. http://theses.insa-lyon.fr/publication/2010ISAL0037/these.pdf.
Pełny tekst źródłaDes environnements informatiques pervasifs sans infrastructure tels que les réseaux mobiles spontanés (MANETs) soulève de nouveaux défis quant à l’exécution d’applications dirigées par les données. Dans cette thèse, nous proposons un nouveau middleware appelé ConAMi (Context-Aware service composition and execution Middleware) qui permet aux dispositifs dans un MANET de collaborer les uns avec les autres afin d'exécuter des applications dirigées par les données d’une manière efficace et fiable. Le défi principal abordé dans cette thèse est la détermination de la composition optimale de services car plusieurs compositions de services peuvent offrir la même fonctionnalité pour exécuter un flux de tâches. Ce défi est abordé via le développement d’un algorithme qui organise les services dans ce que nous appelons un arbre de composition de services. Le principal critère considéré pour déterminer la composition optimale de services est le temps d'exécution global qui comprend le temps de transfert de données et le temps d'exécution des services. L’exécution du flux de tâches peut échouer facilement en raison de la mobilité des dispositifs impliqués dans les MANETs. Pour assurer une exécution fiable du flux de tâches, le "Time-To-Leave" (TTL) du service est considéré lors de la détermination de la composition optimale de services. Néanmoins, le TTL ne peut pas donner une garantie d’absence d’erreurs car il est fondé sur une estimation. En outre, l’exécution du flux de tâches peut aussi échouer en raison d'autres types d’erreurs. En conséquence, le middleware ConAMi inclut des mécanismes originaux de détection et de récupération d’erreurs. Nous avons développé un prototype pour mettre en œuvre le middleware ConAMi et évaluer ses performances. Les résultats des expériences montrent que le middleware ConAMi a de meilleures performances que les approches similaires. ConAMi garantit l'efficacité, la fiabilité et l'équilibrage de la charge des dispositifs
Fournier, Alain. "L'appareil de traduction de la glande sericigène de Bombyx mori : contribution à la connaissance des ribosomes, l'adaptation des tRNA et de la transcription des gènes de tRNA1 Gly". Lyon 1, 1988. http://www.theses.fr/1988LYO10007.
Pełny tekst źródłaBatikh, Ali. "Saccadic adaptation : cross-modal transfer and effect of spatial attention". Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10354.
Pełny tekst źródłaOur brain continuously generates saccadic eye movements and maintains their accuracy thanks to saccadic adaptation (SA). Despite this plasticity-based mechanism has been widely studied since the late 20th century, many questions remain unanswered. For instance, in addition to visual targets, saccades can also be performed toward somatosensory and auditory stimuli, but whether these ‘non-visual saccades’ can be subject to similar adaptive mechanisms as visual saccades is unknown. In the first part of this thesis, we investigated the possibility of adapting the amplitude of reactive saccades (RS) to tactile (Study 1) and auditory targets (Study 2) via the double target step paradigm, which has largely been used to induce adaptation of visual saccades since its introduction (McLaughlin 1967). We also investigated the bidirectional cross-modal transfer of adaptation between visual and tactile saccades, as well as between visual and auditory saccades, respectively. Our results revealed that tactile and auditory saccades can be adapted in much the same way as visual saccades. However, the transfer patterns were asymmetric: visual SA transferred fully to non-adapted tactile and auditory saccades, whereas tactile and auditory SA, despite complete generalization to saccades of the same modality but toward non-adapted locations, transferred only partially to the non-adapted visual saccades. On the one hand, the full transfer of visual saccades adaptation further supports the current view of a motor adaptation locus for visual RS. On the other hand, the low adaptation transfers to visual saccades suggest the presence of adaptation loci specific to non-visual RS and situated upstream of the final motor pathway common to all saccades. Interestingly, both studies also demonstrate that SA can be elicited in darkness, thus, without the vision of the post-saccadic target location. This seems to contradict current theories on the nature of error signals driving adaptation, which all rely on post-saccadic visual feedback. One potential factor that might serve as an error signal for SA is the locus of spatial attention, as suggested by some previous studies. Spatial attention oriented covertly (no eye movement) and saccadic orienting responses both critically contribute to visual perception and involve overlapping neural substrates. In addition, recent studies show that SA modulates the orienting of spatial attention while the reverse effect, that is, the effect of spatial attention on SA, remains unsettled. In the second part of this thesis (Study 3), we aim to assess in depth the possibility of a modulatory effect of spatial attention on SA. We used a combination of the double-step target paradigm (to induce adaptation) and the cross-modal attentional-orienting paradigm to investigate the effect of tactile exogenous and endogenous spatial attention on the adaptation of reactive and voluntary saccades, respectively. Our results show significant correlations between the amount and speed of saccadic adaptive changes and the amount of attention allocated toward or away from the adapted saccade target. Thus, Study 3 brings additional arguments in favor of a coupling between spatial attention and SA, possibly by means of an effect of spatial attention on the saccadic error signals at the level of the posterior parietal cortex. Overall, this work brings additional empirical insights on the control of accuracy of non-visual RS and further highlights the role of spatial attention in SA. Even though significant advances have been seen in models investigating the nature of the error signals driving SA, they currently do not consider the coupling between spatial attention and SA. Therefore, based on the available literature and the outcomes of this thesis, we suggest that future work should take into account the role of spatial attention in error processing
Lefumat, Hannah. "Interlimb transfer of sensorimotor adaptation : predictive factors and underlying processes". Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4014/document.
Pełny tekst źródłaMotor adaptation refers to the capacity of our nervous system to produce accurate movements while the properties of our body and our environment continuously change. Interlimb transfer is a process that directly stems from motor adaptation. It occurs when knowledge gained through training with one arm change the performance of the opposite arm movements. Interlimb transfer of adaptation is an intricate process. Numerous studies have investigated the patterns of transfer and conflicted results have been found. The attempt of my PhD project was to identify which factors and processes favor interlimb transfer of adaptation and thence may explain the discrepancies found in the literature. The first two experiments aimed at investigated whether paradigmatic or idiosyncratic features would influence the performance in interlimb transfer. The third experiment provided some insights on the processes allowing interlimb transfer by using the dual-rate model of adaptation put forth by Smith et al. (2006). Our results show that inter-individual differences may be a key factor to consider when studying interlimb transfer of adaptation. Also, the study of the different sub-processes of adaptation seems helpful to understand how interlimb transfer works and how it can be related to other behaviors such as the expression of motor memory