Academic literature on the topic 'Souris – Fécondité'
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Journal articles on the topic "Souris – Fécondité"
Morin, Lucien. "De la crise de l’homme à la créativité." Revue des sciences de l'éducation 6, no. 1 (October 20, 2009): 93–115. http://dx.doi.org/10.7202/900270ar.
Full textPallaud, Berthille. "De la fécondité de certaines transgressions dans le domaine linguistique." Voix Plurielles 12, no. 1 (May 6, 2015): 167–85. http://dx.doi.org/10.26522/vp.v12i1.1183.
Full textHaxaire, Claudie. "« Toupaille », kits MST et remèdes du « mal d’enfants » chez les Gouro de Zuénoula (Côte-d’Ivoire)." Anthropologie et Sociétés 27, no. 2 (February 2, 2004): 77–95. http://dx.doi.org/10.7202/007447ar.
Full textDissertations / Theses on the topic "Souris – Fécondité"
Froment, Pascal. "Rôles de l'IGF-I et de l'insuline dans les interfaces entre le métabolisme et la reproduction : mise en évidence à partir de deux modèles expérimentaux." Tours, 2003. http://www.theses.fr/2003TOUR4010.
Full textHached, Khaled. "Le point de contrôle du fuseau en méiose : les rôles des protéines Mad2 et Mps1 dans l'ovocyte de souris." Paris 6, 2010. http://www.theses.fr/2010PA066287.
Full textSantiquet, Nicolas. "Les cellules de la moelle osseuse à la rescousse de l'ovaire : implication des cellules de la moelle osseuse dans le renouvellement post-natal d'ovocytes chez le mammifère adulte." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26611/26611.pdf.
Full textBoulanger, Gaëlla. "Rôles de la protéine de liaison aux ARN, CELF1, dans les fonctions testiculaires." Rennes 1, 2012. http://www.theses.fr/2012REN1S057.
Full textCELF1 is an ubiquitous and multifunctional RNA-binding protein, involved in the epost-transcriptional regulations of the genetic expression. Male mice that are inactivated for the Celf1 gene (Celf1⁻/⁻) display a hypofertility associated with defects of the spermiogenesis, the elongation of post-meiotic cells. We show here that these defects appear from the first wave of the spermatogenesis in the prepubescent animal, and are associated to a delay of the development of Celf1⁻/⁻ mice. At the adult, males present a decreased testosterone level. The elongation of the round spermatid being strongly dependent on the testosterone, we supposed that the defects of spermiogenesis are due to this hypotestosteronemia. We validated this hypothesis by a supplementation in testosterone of Celf1⁻/⁻ mice. We showed that the decreased testosterone level of Celf1⁻/⁻ mice is associated with an overexpression of the Cyp19al gene, encoding for the aromatase, an enzyme that converted androgens into estrogens. CELF1 interacts in vivo with the Cypl19al mRNA. These data indicate that CELF1 represses the expression of the aromatase by destabilizing its mRNA to the wild-type mice, and that the hypotestosteronemia in Celf1⁻/⁻ mice is due at least in part to a loss of this repression. The aromatase being strongly expressed in the Leydig cells, we supposed that this deregulation takes place mainly in these cells. We thus generated a conditional inactivation of Celf1⁻/⁻ in the Leydig cells to confirm it
Bahougne, Thibault. "Perturbation de la rythmicité circadienne : impact sur la fonction reproductive de souris femelles." Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAJ001.
Full textIn female mammals, cycles in reproductive function depend on both a biological clock synchronized to the light/dark cycle, and a balance between the negative and positive feedbacks of estradiol which concentration varies during ovary maturation. In women, studies report that chronodisruptive environments, notably those experienced in shiftwork conditions, may impair fertility and gestational success. The objective of this study was to explore, in female mice, the effects of shifted light/dark cycles on both the robustness of the estrous cycles and the timing of the preovulatory luteinizing hormone (LH) surge, two hallmarks of mammalian reproductive health. When mice were exposed to a single 10 h-phase advance or 10 h-phase delay, the occurrence and timing of the LH surge and estrous cyclicity were recovered at the third estrous cycle. By contrast, when mice were exposed to a chronic shift (successive rotations of 10 h-phase advance for 3 days followed by 10 h-phase delay for 4 days), they exhibited a severely impaired reproductive activity. Most mice had no preovulatory LH surge already at the beginning of the chronic shift. Furthermore, the gestational success of mice exposed to a chronic shift was reduced since the number of pups was two times lower in shifted as compared to control mice. In conclusion, this study reports that female mice exposure to a single-phase shift has minor reproductive effects whereas exposure to chronically disrupted light/dark cycles markedly impairs the preovulatory LH surge occurrence, leading to reduced fertility
Richard, Quentin. "Hétérogénéité individuelle, variabilité temporelle et structure spatiale comme sources de variation démographique chez les grands herbivores de montagne." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAV070/document.
Full textIn Northern hemisphere, populations of large herbivores have to cope with major environmental modifications linked to the increase of their density and to global change which strongly impacts their habitat (climate change, modification of human activities and habitat fragmentation). Understanding how these species adjust their life history strategies in response to such modifications is central for population ecology and for management issues. In this context, this work aimed to identify the sources of variation of survival and reproductive tactics in 3 species of mountain ungulate (Pyrenean chamois Rupicapra pyreneica, Alpine chamois Rupicapra rupicapra, and Mediterranean mouflon Ovis gmelini musimon × Ovis sp.). Using capture-mark-recapture monitoring we specifically investigated the role of individual heterogeneity, climate change, and spatial heterogeneity in shaping vital rates.This work relied on mixture models and an innovative combination of robust-design into a multi-events framework to explore demographic data collected at different spatio-temporal scales. Fixed heterogeneity appeared as a major demographic component in the 3 studied species by highlighting in mouflon and Pyrenean chamois two groups of females with contrasted reproductive performance, and by providing evidence in chamois of among-females differences in survival rates linked to the quality of their habitat. These models allowed us to provide evidence for the terminal investment hypothesis in female mouflon and to decompose reproductive effort in females of Pyrenean chamois from gestation to weaning, to unveil that lactation only led to cost on subsequent reproduction. Our results also highlighted the major influence of winter and spring climatic conditions on demographic parameters in the 3 studied species, and confirmed the general trend that climate effects are often species- and site-specific. Our findings provided evidence that Pyrenean chamois and mouflon evolved contrasted life history strategies, although both species share strong similarities in terms of body mass, ecological traits and phylogenetic position.Finally, our work stresses the importance of conducting comparative demographic studies, based on longitudinal monitoring of marked individuals, at inter-specific, inter-population and within population levels, to better understand and predict the future of large herbivores populations in the current context of global changes
Julien, Valérie. "Le sujet à l’épreuve de la guérison, une intégrité affective au fondement de notre consistance." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE3067/document.
Full textInstinct tells us that sickness is an ill from which we must recover, but we must know if instinct is enough to explain what is evident, in other words, if reason can even account for what resists its hold on rationality. In short, if it's possible to argue "with reason" on a question which, from the outset, involves the subject. This work falls within the scope of hermeneutic phenomenology. It questions the critical life experience of confronting "serious illness", meaning an illness that "nature" cannot cure, and looks at what the effort required to recover teaches us about our humanity. Separate from the perspective which seeks to identify “the essence of the cure,” my aim is to interpret what is at play in the subject's personality, who undertakes to recover, in other words maintains their commitment, independently of the objective conditions for recovery. As taking into consideration both individual and collective health requirements could mask the subjective element of the relationship to health in the growing importance accorded to the concept of care and ‘’good’’ care. With the best intentions in the world health research could avoid the question of the subject's participation in defining "living well" and transform itself into a new attempt to normalize humanity. I have chosen to examine the conditions for the possibility of and upholding of our resistance as a subject for the confrontation with illness strips us of our power and obliges us to make a stand for life, for a meaning to life, despite being exposed to death. The moment of truth – and in this sense an event – where the self of the subject, is at stake. Faced with illness, the subject experiences an ordeal which is intimately bound to their attitude to life, which itself is no longer evident. I try to throw some light on which subject medical practice addresses to elicit interrogation and if possible to open a new area of resources for people responsible for healing. Resources which lead to a rethinking of our relationship to sensitive subjects and the illusion of one’s compassionate control. Resources which reconsider the subject’s capacity to resist “the way things are”. Resources which make and remake the vital link to life, of which the primary test for us is always “emotional,” convinced that if the subject alone decides their recovery, none can heal alone.My reasoning will explore the entrenchment, or not, of the subject in the affectivity of life, look again at the potential or necessary link between affectivity and liberty as well as the connection between the one and the other to responsibility.This will lead us to question the paradigm of resilience to consider the subject's capacity for integration, to question guilt as the norm which regulates the moral conscience and disaffection with love in order to remain master of one's self.I want to show that the phenomenon of resilience does not permit the hypothesis of a possible integrity of the subject; resilience can also be considered as an artifact produced by an individual who assembles an attitude to the disaster residing in them and destroying them bit by bit.I put forward the, without doubt thorny, hypothesis, that guilt is an accomplice of the physical and moral ill and thereby alters a resistant subject's ability to confront the situation. That emotional integrity, “at the heart of the subject” has always preceded the ill and affirms before any destructiveness and negativity a “generosity of self.”Lastly, I will explore the ability to love as a reality of the highest importance to consider the integrity of a subject, filled with the love of life who undertakes to spread "good". From this, comes this generosity, this is what, in the framework of our research, we call “healing.”
Book chapters on the topic "Souris – Fécondité"
CHARBIT, Yves. "Fécondité et nuptialité." In Dynamiques démographiques et développement, 81–105. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9050.ch4.
Full textHachez, Isabelle. "§ 1. La force normative : fécondité et limites d’un concept émergent." In Les sources du droit revisitées - vol. 4, 427–55. Presses de l'Université Saint-Louis, 2012. http://dx.doi.org/10.4000/books.pusl.2288.
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