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Academic literature on the topic 'Canard souchet'
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Journal articles on the topic "Canard souchet"
Pirot, Jean-Yves, and Didier Pont. "Le Canard Souchet (Anas clypeata L.) hivernant en Camargue : alimentation, comportement et dispersion nocturne." Revue d'Écologie (La Terre et La Vie) 42, no. 1 (1987): 59–79. http://dx.doi.org/10.3406/revec.1987.5395.
Full textMarius-Jestin, Véronique, Martine Cherbonnel, J. P. Picault, and G. Bennejean. "Isolement chez des canards mulards d'une souche hypervirulente de virus de la Peste du canard et d'un paramyxovirus aviaire de type 6." Comparative Immunology, Microbiology and Infectious Diseases 10, no. 3-4 (January 1987): 173–86. http://dx.doi.org/10.1016/0147-9571(87)90029-4.
Full textBRUN, J. M., M. M. RICHARD, C. MARIE-ETANCELIN, R. ROUVIER, and C. LARZUL. "Le canard mulard : déterminisme génétique d’un hybride intergénérique." INRAE Productions Animales 18, no. 5 (December 18, 2005): 295–308. http://dx.doi.org/10.20870/productions-animales.2005.18.5.3534.
Full textBancej, Christina, Abbas Rahal, Liza Lee, Steven Buckrell, Kara Schmidt, and Nathalie Bastien. "Rapport national de mi-saison d’ÉpiGrippe, 2021–2022 : activité grippale sporadique de retour." Relevé des maladies transmissibles au Canada 48, no. 1 (January 26, 2022): 43–50. http://dx.doi.org/10.14745/ccdr.v48i01a06f.
Full textPage, Cheryl, and Jessica Rebeiro. "Évaluation de l’efficacité d’un programme de formation sur l’administration par bolus intraveineux de cellules souches hématopoïétiques cryoconservées." Canadian Oncology Nursing Journal 33, no. 2 (April 28, 2023): 207–14. http://dx.doi.org/10.5737/23688076332207.
Full textCriales Doria, Sandra Patricia, Alexandre Lafleur, and Philippe Gervais. "Liver Abscess Metastatic Syndrome Caused by Hypermucoviscous Klebsiella Pneumoniae in a Canadian Patient of Vietnamese Origin." Canadian Journal of General Internal Medicine 14, no. 1 (February 12, 2019): 21–24. http://dx.doi.org/10.22374/cjgim.v14i1.279.
Full textAllaire, Gratien. "La Francophonie canadienne, un ensemble légitime en changement." Articles, no. 5 (March 18, 2015): 172–96. http://dx.doi.org/10.7202/1029112ar.
Full textBoleda, Mario. "Les migrations au Canada sous le régime français (1608-1760)." Cahiers québécois de démographie 13, no. 1 (October 24, 2008): 23–39. http://dx.doi.org/10.7202/600519ar.
Full textSarty, Roger. "War Junk: Munitions Disposal and Postwar Reconstruction in Canada. Alex Souchen." Canadian Historical Review 103, no. 1 (March 1, 2022): 177–78. http://dx.doi.org/10.3138/chr.103.1.br14.
Full textHayes, Geoffrey. "Alex Souchen. War Junk: Munitions Disposal and Postwar Reconstruction in Canada." University of Toronto Quarterly 91, no. 3 (October 1, 2022): 421–22. http://dx.doi.org/10.3138/utq.91.3.hr109.
Full textDissertations / Theses on the topic "Canard souchet"
Moreau, Axelle. "Relation entre les invertébrés d’eau douce et le Canard souchet Spatula clypeata en halte prénuptiale dans deux zones humides de Vendée (France)." Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS004.
Full text"Income breeder", the Northern shoveler Spatula clypeata makes several stopovers between its wintering and breeding site in order to replenish its reserves and complete its pre-breeding migration. Freshwater invertebrates are the main prey of the Northern shoveler and are captured mainly by filtration. This research project had three main objectives: (1) to understand the abundance, diversity, and habitat of freshwater invertebrates in two wetlands known for their high abundance of Northern shoveler, the Marais breton, and the Marais poitevin; (2) to study the environmental and nutrient characteristics of the habitats used by the Northern shoveler during its prenuptial stopover; (3) to define habitat management measures in favour of all of the species groups studied. This study showed that the ponds studied were abundant in freshwater invertebrates. The study defined four habitat typologies based on environmental variables and the presence of some key invertebrate taxa. During migratory stopover, the Northern shoveler used different habitats with a nychthemeral rhythm. Daytime sites were deep and sparsely vegetated habitats dominated by microcrustaceans, while nighttime sites were shallow and vegetated habitats with high invertebrate taxonomic diversity. Home range sizes did not differ between the two wetlands, between sexes or between age classes (juveniles and adults). Finally, this study revealed that during the prenuptial stopover, the Northern shoveler fed mainly on Cladocera, Copepoda, Chironomidae larvae, Pleidae and Particulate Organic Matter. The results of this work could help to define management and habitat conservation measures for all the species studied
Dupiellet, Jean-Paul. "Mycoplasmes de l'oie et du canard : contribution à l'étude sérologique et moléculaire de souches apparentées à Mycoplasma gallisepticum." Bordeaux 2, 1988. http://www.theses.fr/1988BOR22021.
Full textDupiellet, Jean-Paul. "Mycoplasmes de l'oie et du canard contribution à l'étude sérologique et moléculaire de souches apparentées à Mycoplasma gallisepticum /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37613341q.
Full textAyad, Oualid. "Caractérisation fonctionnelle des cellules souches cardiaques humaines dans un but thérapeutique." Thesis, Poitiers, 2017. http://www.theses.fr/2017POIT2303/document.
Full textThe aim of this thesis was to develop and characterize a model of human heart stem cells in a context of cell therapy.A population of mesenchymal stem cells, expressing the W8B2 marker (CSCs W8B2+), was first isolated from human auricles and characterized using high-throughput RT-qPCR techniques, immuno-labeling, western-blot and calcium fluorescence imaging. These experiments were focused on 1. the gene expression of ion channels and calcium signaling proteins; and 2. the study of CSCs W8B2+ in vitro differentiation and associated intracellular calcium activity changes.The results show that CSCs W8B2+ tend to differentiate into pacemaker cells. Some nodal specific genes such as Tbx3, HCN, ICaT, L, Kv, NCX, are expressed during differentiation. The recording of calcium activity (via an optogenetic probe) shows the presence of calcium oscillations that change in frequency and intensity during differentiation. IP3 sensitive calcium stocks and the NCX exchanger would play a fundamental role in these variations.Then we studied the importance of the BKCa channel and the sphingosine 1-phosphate (S1P) receptors in the regulation of the fundamental properties of the W8B2+ CSCs. Inhibition of BKCa reduces cell proliferation by accumulating cells in the G0 / G1 phase, suppresses cell self-renewal but does not affect migration properties. Concerning S1P, it decreases proliferation and self-renewal without stimulate S1P1,2,3 receptors.This work highlights fundamental potential molecular targets in a context of cardiac cell therapy
Andin, Nicolas. "Etude des potentialités de production de polyhydroxyalcanoates (PHA) à partir de graisses de canard par la souche Pseudomonas pufida KT2440." Thesis, Toulouse, INSA, 2016. http://www.theses.fr/2016ISAT0056.
Full textPolyHydroxyAlkanoates (PHA) production by the strain Pseudomonas putida KT2440, from duck fats has been investigated. The first studies were realized on model substrates such as glycerol and fatty acids, composing this lipid substrate. The kinetic and stoichiometric characterizations of Fed-Batch mode cultivations on each of thèse substrates were performed by coupling PHA production and a residual growth monitored by the nitrogen feeding. Through this strategy from fatty acids, it succeeds to optimize the intracellular catbon and energy distribution reaching an overall carbon yield of 0.7 Cmo1e.Cmole''. From glycerol, kinetics and yields productions were tess interesting becapse PHA are the results of an energy-consumîng biosynthesis. Beyond thèse performances, some relationships between the culture conditions for the PHA production and the properties of the final polymers were determined. Indeed, function of the substrate, the metabolic pathways used, different polymers more or less crystalline are obtained. PHA with the lowest unsaturated monomers fraction (<12%u'.cle.mole 1) and a main kind qf monomer in their. composition have the highest degree of‘ ‘* cÎystalliniÎy. Thej adÂpt the appeàrance ot à vêry inferesting ela‘sfic’Îilùi àfter êxbaction. ConŸêtsely,‘po1ynierswith a high unsaturated monomers fraction and homogeneity of monomers proportions resemble unmanageable amorphous sticky dough, with a limited industrial interest
Tremblay, Sophie. "Exploration des déterminants du soutien social chez les personnes aînées immigrantes et canadiennes de souche." Mémoire, Université de Sherbrooke, 2012. http://hdl.handle.net/11143/6083.
Full textOlivier, Stéphane. "Développement de la plateforme cellulaire EB66 dérivée de cellules souches embryonnaires de canard pour la production industrielle d’anticorps thérapeutiques à activité ADCC améliorée." Nantes, 2010. http://www.theses.fr/2010NANT33VS.
Full textMonoclonal antibodies (mAbs) represent the fastest growing class of pharmaceuticals. However, prohibitive therapeutic costs call to develop cheaper and more active molecules. To this end, one of the promising strategies is to enhance mAbs efficacy through an improved antibody dependent cell cytotoxicity (ADCC) correlated with mAbs fucosylation level. EB66 cell line, a duck embryonic stem cell-derived substrate, displays unique regulatory and industrial features: they are genetically stable, immortal, and reach high cell densities in serum-free medium. The fact that avian species have been described to naturally produce low-fucosylated antibodies prompted the investigation on the use of the duck EB66 cells for the production of mAbs with reduced fucose content and enhanced ADCC activity. The aim of this work was to establish and optimize technologies dedicated to the development of the EB66 cellular platform for the production of therapeutic mAbs. A selection procedure has been developed to isolate producer clones. A yield titer higher to 1 g/l has been reached thanks to the optimization of a specific expression vector associated to the development of the production process. The mAbs produced on EB66 cells display a glycosylation profile comparable with mAbs produced on the Chinese hamster ovary cells, with a naturally reduced fucose content resulting in a strongly enhanced ADCC activity. Furthermore, we observed a correlation between mAbs fucosylation and expression level of the alpha 1,6-fucosyltransferase within producer clones. The EB66 cells have therefore the potential to evolve as a novel cellular platform for the production of high potency therapeutic antibodies
Chafai, Magda. "Effets du PACAP et du VIP sur la différenciation neuronale des cellules souches embryonnaires de souris." Rouen, 2009. http://www.theses.fr/2009ROUES026.
Full textMouse embryonic stem (ES) cells are isolated from the inner mass of the blastocyst. Pituitary adenylate cyclase activating polypeptide (PACAP) and vasoactive intestinal polypeptide (VIP) are known to be implicated early during ontogenesis. The aim of the present study was to determine the effects of VIP and PACAP on functional differentiation of ES cells. Our results showed an inversion of the expression pattern of PAC1 and VPAC1 receptors. ES cells expressed ERK1/2 and JNK. Both peptides modified the shape of undifferentiated ES cells into bipolar. Electrophysiological recording showed that VIP and PACAP enhanced potassium and calcium current. These findings demonstrate that PACAP and VIP induce morphological and functional differentiation of ES cells into a neuronal phenotype. Our results on the pro-differentiating effect of compound X indicate that this molecule facilitates the commitment of ES cells into the neuronal pathway
Terrie, Élodie. "Rôle de la signalisation calcique dépendante des Store-Operated Channels (SOC) dans les cellules souches neurales adultes et les cellules souches cancéreuses de glioblastomes." Thesis, Poitiers, 2019. http://www.theses.fr/2019POIT2322.
Full textNeural stem cells (NSC) persist in the brain of adult mammals and fuel the brain with new neurons and glial cells all lifelong. Recruited by brain injuries, NSC are considered with great interest by regenerative medicine. However, the development of new therapeutic approaches based on the use of NSC requires an in-depth knowledge of the mechanism regulating these cells. Glioblastomas are the most frequent and deadliest form of adult brain tumors. Within the tumor, glioblastoma stem cells (GSC) form a subpopulation of cells that is considered as responsible of tumor initiation, propagation and relapse, as these cells are particularly resistant to anti-tumoral treatments. GSC and NSC share key characteristics and numerous studies suggest that GSC arise from transformed NSC. Transcriptomic analysis of NSC and of GSC revealed an enrichment of calcium signaling transcripts in these two cell populations. Representing a major way of calcium influx into cells, Store-Operated Channels (SOC) are mobilized in response to a wide range of extracellular factors. SOC regulate many cellular processes and are often hijacked in cancer to promote tumor progression.The aim of this thesis is to evaluate potential SOC involvement in NSC and GSC regulation.The first part of this work, relying on in vitro and in vivo studies, demonstrates that NSC from adult mice express functional SOC whose inhibition by pharmacological agents reduces NSC proliferation and self-renewal. In the second part of this thesis, we demonstrate that GSC from primary cultures derived from patients express SOC, as do NSC, and that SOC inhibition reduces GSC ability to proliferate and self-renew.Accordingly, the results of this thesis demonstrate that SOC regulate NSC and GSC self-renewal, a property that is essential to maintain stem cells pool. As GSC are responsible for glioblastomas treatment resistance, our studies point to a potential new therapeutic way, via calcium channels, against this deadly pathology
L'Hostis-Guidet, Anne. "Des xénopes transgéniques pour l’étude de la neurogénèse : analyse et propriétés fonctionnelles de neuroblastes exprimant un gène rapporteur sous contrôle du promoteur de NeuroD." Rennes 1, 2007. http://www.theses.fr/2007REN1S139.
Full textElectrical activity involved in neurogenesis during embryonic development of vertebrates is dependant of calcium permeabilities whose characterization requires the ability to locate neuroblasts. Transgenic lines expressing EGFP under the control of the NeuroD (neuronal differentiation factor) and the Neuro β-tubulin (neuronal marker) promoters were produced in Xenopus laevis. The transgene expression is restricted to neurons and non differentiated cells exclusively in nervous system in these transgenic animals. Confocal calcium imaging suggests that EGFP expressing cells with the NeuroD promoter would have different functional properties compared to cells without transgene expression. The combination of transgenesis and functional cellular imaging is a promising tool for characterization of neuroblasts expressing bHLH NeuroD factor
Books on the topic "Canard souchet"
Institut canadien pour la paix et la sécurité internationales. Doit-on se soucier de la défense du Canada? S.l: s.n, 1988.
Find full textDickson-Gilmore, E. J. Le crime organisé de souche autochtone au Canada: Élaborer une typologie pour comprendre et établir des stratégies d'intervention. Ottawa, Ont: Sous-direction de la recherche et de l'évaluation, Direction des services de police communautaires, contractuels et autochtones, Gendarmerie royale du Canada, 2003.
Find full textDreams and due diligence: Till and McCulloch's stem cell discovery and legacy. Toronto: University of Toronto Press, 2011.
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