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Artykuły w czasopismach na temat "Particules en cellule (PIC)"
Poirson, Philippe. "Pic de particules fines et inertie des autorités". Revue Médicale Suisse 4, nr 146 (2008): 559a. http://dx.doi.org/10.53738/revmed.2008.4.146.559a.
Pełny tekst źródłaGallinari, F., S. Elmaleh i R. Ben Aïm. "Influence de la dissipation énergetique sur l'efficacité de la flottation à air dissous : analogie avec la floculation". Revue des sciences de l'eau 9, nr 4 (12.04.2005): 485–98. http://dx.doi.org/10.7202/705263ar.
Pełny tekst źródłaHengé-Napoli, M. H., E. Ansoborlo, V. Chazel, R. Gibert, P. Houpert, F. Paquet i L. Zhang. "Interaction uranium-cellule cible : exemple de la transformation de particules d'UO4dans le macrophage alvéolaire". Radioprotection 32, nr 5 (grudzień 1997): 625–36. http://dx.doi.org/10.1051/radiopro:1997121.
Pełny tekst źródłaFortin, JF, R. Cantin i MJ Tremblay. "Présence des protéines de la cellule hôte sur les particules virales : influences sur le cycle de vie du VIH-1." médecine/sciences 17, nr 2 (2001): 186. http://dx.doi.org/10.4267/10608/1891.
Pełny tekst źródłaKrug, S. A., S. L. Eggers i B. Matthiessen. "High nitrate to phosphorus ratio attenuates negative effects of rising <i>p</i>CO<sub>2</sub> on net population carbon accumulation". Biogeosciences Discussions 8, nr 4 (11.07.2011): 6833–57. http://dx.doi.org/10.5194/bgd-8-6833-2011.
Pełny tekst źródłaBrajkovic, S., D. Favre, G. Niederhäuser, R. Regazzi, G. Waeber i A. Abderrahmani. "P241 L’induction du stress du réticulum endoplasmique contribue au dysfonctionnement de la cellule bêta provoquée par les particules de LDL oxydées". Diabetes & Metabolism 35 (marzec 2009): A84. http://dx.doi.org/10.1016/s1262-3636(09)72039-7.
Pełny tekst źródłaIto, Sayuri, Eisuke Gotoh, Shigeru Ozawa i Kazuo Yanagi. "Epstein–Barr virus nuclear antigen-1 is highly colocalized with interphase chromatin and its newly replicated regions in particular". Journal of General Virology 83, nr 10 (1.10.2002): 2377–83. http://dx.doi.org/10.1099/0022-1317-83-10-2377.
Pełny tekst źródłaMatthiessen, B., S. L. Eggers i S. A. Krug. "High nitrate to phosphorus regime attenuates negative effects of rising <i>p</i>CO<sub>2</sub> on total population carbon accumulation". Biogeosciences 9, nr 3 (28.03.2012): 1195–203. http://dx.doi.org/10.5194/bg-9-1195-2012.
Pełny tekst źródłaLukaszuk, Bartlomiej, Agnieszka Miklosz, Adrian Chabowski i Jan Górski. "Modest Decrease in Pgc1α Results in TAG Accumulation but not in Insulin Resistance in L6 Myotubes". Cellular Physiology and Biochemistry 35, nr 4 (2015): 1609–22. http://dx.doi.org/10.1159/000373975.
Pełny tekst źródłaLopez, Katherine C., Sridhar Kandala, Scott Marek i Deanna M. Barch. "Development of Network Topology and Functional Connectivity of the Prefrontal Cortex". Cerebral Cortex 30, nr 4 (6.12.2019): 2489–505. http://dx.doi.org/10.1093/cercor/bhz255.
Pełny tekst źródłaRozprawy doktorskie na temat "Particules en cellule (PIC)"
Monel, Blandine. "Assemblage des particules virales et transmission du VIH de cellule à cellule". Paris 7, 2012. http://www.theses.fr/2012PA077170.
Pełny tekst źródłaDirect cell-to-cell transmission of human immunodeficiency virus (HIV) is a more potent and efficient means of virus propagation than infection by cell-free virus particles, During the first part of my thesis we show that HIV cell-to-cell transmission requires the assembly of enveloped virus particles. Nucleic acids with replication potential can not translocate directly from donor to target cells through envelope glycoprotein (Env)-induced fusion pores, The increased efficiency of this infection route may thus be attributed to the high local concentrations of virus particles at sites of cellular contacts rather than to a qualitatively different transmission process. The truncation of the cytopïasmic tail of Envgp41 inhibits HIV-1 propagation in some cells named non-permissive cells. In some other cell lines (permissive cells), HIV can still propagate. The aim of the second study of my thesis is to characterize the impact of this truncation in the two kinds of cell lines, both on HIV cell-free infectivity and on HTV cell-to-cell transmission. Our results show that, for both transmission modes, the gp41CT truncation of HIV-1 leads to a drastic decrease of infectivity when viruses are produced in non-permissive cells. The replication defect of the HIV-1 gp41CT truncated mutant in non-permissive cells could be explained by an important mortality of the non-infected "bystanders" cells, in addition to the previously shown reduction of Env incorporation into virus particles. Our preliminary results show that contacts established with a cell expressing the truncated Env rapidly induces cell-cell fusion and syncytia formation in non-permissive cells, leading to cell death
Betar, Homam. "Kinetic Effects in Magnetic Reconnection". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0043.
Pełny tekst źródłaPlasmas are gaseous systems of ions and electrons which interact via electromagnetic fields and display collective properties. Among these, is the notion of the magnetic line "connection". This expresses the fact that, in regimes in which charged particles spiral sufficiently fast along lines of magnetic induction, the latter is linked to the bulk plasma motion and acquire a topological identity which forbids them to break, intersect and reconnect. This topological identity, however, can be locally violated thanks to a number of kinetic effects, such as particle collisions, when the currents in the plasma are sufficiently intense: one speaks of "magnetic reconnection". Magnetic reconnection is an important ingredient of the plasma self-organization and has significance for both space and laboratory plasmas since it is at the basis of natural phenomena like solar flares and polar lights, or of disruptive processes in thermonuclear fusion experiments. A long-standing problem in the study of laboratory and astrophysical plasmas is to understand the mechanisms of acceleration of electrons and ions, as a magnetic field reconnect and release energy. In this work, we studied kinetic effects on reconnection instabilities developing spontaneously in static current sheets (tearing modes) and in combination with a class of kinetic instabilities (Weibel instabilities) that are relevant both to astrophysical plasma jets and to laser-plasma interaction experiments. We performed this study using reduced-fluid and kinetic models and we investigated the competition between tearing-type modes and Weibel-type instabilities by means of both semi-lagrangian full kinetic Vlasov-Maxwell simulations and particles in cell simulations
Malbec, Marine. "La transmission de cellule à cellule du VIH-1 : rôle de la protéine Nef et effet inhibiteur des anticorps neutralisants à large spectre". Paris 7, 2013. http://www.theses.fr/2013PA077191.
Pełny tekst źródłaWe have studied two aspects of HIV-1 cell-to-cell transmission. First, we have investigated the role of Nef in HIV-1 replication and cell transfer. Second, we have examined the effect of a panel of broad neutralizing antibodies (bNAbs) on cell-to-cell transmission and studied the mechanisms involved. Nef is an HIV regulatory protein indispensable for replication and pathogenicity in vivo. Nef is known to down-regulate the surface expression of various cellular molecules, to increase virions infectivity and to affect cellular motility. We have shown that Nef facilitates HIV cell-to-cell transmission and that this function is conserved among lentiviruses. Nef increases levels of the virus structural Gag protein in the cell and promotes Gag localization to the plasma membrane. In the absence of Nef, viral material transferred to target cells is mostly immature. BNAbs are defined by their potency and their breadth, neutralizing a wide'panel of circulating viral strains from a variety of clades. The antiviral activity of these bNAbs is typically measured in cell free infection assay but little is know about their ability to block cell-associated transmission. By examining 15 bNAbs in collaboration with Michel Nussenzweig's group, we demonstrate that only a small subset efficiently prevent HIV cell-to-cell transmission. These bNAbs accumulate at the virological synapse, block the formation of conjugates and inhibit the transfer of viral material to target cells. Infection by cellular contact is likely the main mode of virus dissemination in vivo and the bNAbs identified in our study may represent candidates for therapeutic or prophylactic strategies
Lemercier, Nicolas. "CEMOVIS, développements méthodologiques et étude ultrastructurale de la cellule HT29 : De la cellule aux nucléosomes". Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00685425.
Pełny tekst źródłaBoudhib, Mohamed. "Analyse d’aérosols par méthodes LIBS sans étalonnage et LIBS couplée à une cellule radiofréquence utilisée comme piège à particules". Thesis, Orléans, 2017. http://www.theses.fr/2017ORLE2011/document.
Pełny tekst źródłaNew issues related to process control and workplace surveillance accompany the emergence of nanotechnology industry. This involves the development of new real-time and in-situ characterization techniques. In this context, the NOVA unit from the INERIS institute collaborated with LP3 and GREMI laboratories to study two approaches aiming to enhance the LIBS technic performances. The first approach used a flow cell to determine the relative elemental composition of an aerosol with a calibration-free procedure. The recorded spectra were compared to theoretical spectra calculated for a plasma in the Local Thermodynamic Equilibrium LTE. The best agreement between recorded and computed spectra allowed the determination of the relative composition with a good agreement with the reference value, for an alumina aerosol. The study of the temporal evolution of the plasma allowed the estimation of a temporal range within which the LTE hypothesis was verified. The second approach used a low-pressure radiofrequency plasma generated in an inert gas as a particle trap to analyse aerosols and nanoparticles. The use of such a system allowed the enhancement of particles detection by concentrating them spatially. We determined the optimal parameters for the LIBS analysis using this system. Furthermore, we established the plasma continuum was attenuated even at very low time delays. We evaluated the sampling volume of this new system and compared it to case of LIBS analysis on air. Finally, we estimated the detection limits of this system when analysing nanoparticles
DOORNAERT, BLANDINE. "Impact des particules diesel et des acariens sur les cellules epitheliales bronchiques humaines : alteration des interactions cellule-matrice extracellulaire". Paris 12, 2001. http://www.theses.fr/2001PA120016.
Pełny tekst źródłaKhelifi, Sadjia. "Étude du comportement hydrodynamique de suspensions concentrées de particules d’hématite : sédimentation, comportement rhéologique et écoulement forcé dans une cellule inclinée". Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0036.
Pełny tekst źródłaThis thesis aims to develop scientific and technological knowledge needed to design a pilot production of steel by electrochemical reduction of hematite particles suspended in an alkaline medium at 110°C in order to provide a reliable and environmentally friendly industrial process, as an alternative to the conventional process based on coal. The mixture considered contains a suspension of hematite of 12% by volume in an aqueous sodium hydroxide solution of 50% by weight. This thesis seeks to study the sedimentation and rheology of hematite suspensions and the hydrodynamic behavior of hematite particles in inclined cell and to quantify the possible phenomeno impact on the cathode
Turkcan, Silvan. "Interaction toxine-cellule étudiée par imagerie de nanoémetteurs individuels". Phd thesis, Ecole Polytechnique X, 2010. http://tel.archives-ouvertes.fr/tel-00608124.
Pełny tekst źródłaSaias, Laure. "Laboratoires-sur-puce pour l'analyse cellulaire : tri de cellules tumorales circulantes et culture de neurones". Paris 6, 2009. http://www.theses.fr/2009PA066684.
Pełny tekst źródłaLyu, Jinming. "Modélisation numérique de la dynamique de particules molles en microcanaux". Thesis, Ecole centrale de Marseille, 2019. http://www.theses.fr/2019ECDM0002.
Pełny tekst źródłaVesicles are a model system for understanding the dynamical behavior of a closed soft particle such as red blood cells (RBCs) in flows. The inextensible lipid bilayer membrane of a vesicle admits resistance to the bending elasticity, and its large surface-area-to-volume ratio allows the vesicle to exhibit remarkable shape changes in the dynamics even in a simple flow. Significant progress has been made over the past decades in understanding vesicle dynamics in unbounded Stokes flows. This manuscript deals with the numerical investigation of shape transition and lateral migration of 3D vesicles in wall-bounded Stokes flows by means of an isogeometric finite-element method (FEM) and boundary-element method (BEM). Starting from a previously reported isogeometric FEM-BEM simulations of the dynamics of soft particles (drops, capsule, and vesicle) in Stokes flows in free space, the original code is developed to account for microchannel walls of arbitrary cross-section. The present work focuses on the dynamics of a vesicle that is transported through a circular tube in a pressure-driven flow. First, we investigate typical vesicle shapes, different lateral migration modes, and flow structure onto vesicle membrane versus three independent dimensionless parameters, namely, the reduced volume, the confinement, and the (bending) capillary number. Shape transitions and the phase diagram of stable shapes for several reduced volumes are obtained in the (confinement, capillary number) space, showing an extension of the set of vesicle morphologies and rich vesicle dynamics owing to the intricate interplay among the tube wall, hydrodynamic stresses, and membrane bending. Secondly, we study, via an axisymmetric BEM, the hydrodynamics under high confinements in which the shape of the vesicle is expected to maintain axisymmetry. A particular emphasis is given to the prediction of the vesicle mobility and the extra pressure drop caused due to the presence of the vesicle, the latter having implications in the rheology of a dilute suspension. In addition, based on the numerical results of limiting behavior of quantities of interest near maximal confinement, we give various scaling laws to infer, for example, the vesicle velocity, its length, and the thickness of lubrication film. Finally, we present a coupled, hybrid continuum–coarse-grained model for the study of RBCs in fluid flows. This model is based on a combination of the vesicle model with a network of springs with fixed connectivity, representing the cytoskeleton. Numerical results show that this two-component vesicle–cytoskeleton model isable to extract the mechanical properties of RBCs and predict its dynamics in fluid flows
Części książek na temat "Particules en cellule (PIC)"
Williams, Barbara A., i Michael J. Gidley. "The use of dietary fibre to optimize microbial gut function in pigs, with particular consideration of dietary cereal grains and legumes". W Understanding gut microbiomes as targets for improving pig gut health, 239–84. Burleigh Dodds Science Publishing, 2022. http://dx.doi.org/10.19103/as.2021.0089.10.
Pełny tekst źródłaBecker, Richard C., i Frederick A. Spencer. "Factor Xa Inhibitors". W Fibrinolytic and Antithrombotic Therapy. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780195155648.003.0021.
Pełny tekst źródłaStreszczenia konferencji na temat "Particules en cellule (PIC)"
FERRANDON, Erwan, Mathis COURANT, Camélia POPESCU, Yann LAUNAY, Sophie ALAIN i Claire LEFORT. "Un pipeline instrumental et computationnel pour visualiser des particules virales de SARS-CoV-2 en suspension". W Les journées de l'interdisciplinarité 2022. Limoges: Université de Limoges, 2022. http://dx.doi.org/10.25965/lji.684.
Pełny tekst źródłaPontecorvo, Michael E., Silvestro Barbarino i Farhan S. Gandhi. "Cellular Honeycomb-Like Structures With Internal Inclusions in the Unit-Cell". W ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8075.
Pełny tekst źródłaBarbarino, Silvestro, Michael E. Pontecorvo i Farhan S. Gandhi. "Cellular Honeycomb-Like Structures With Internal Buckling and Viscous Elements for Simultaneous Load-Bearing and Dissipative Capability". W ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8080.
Pełny tekst źródłaZhang, Zhenyu, Jhon Diaz i Nejat Olgac. "Adaptive Hybrid Control for Rotationally Oscillating Drill (Ros-Drill©), Using a Low-Resolution Sensor". W ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASMEDC, 2011. http://dx.doi.org/10.1115/dscc2011-6065.
Pełny tekst źródłaRaporty organizacyjne na temat "Particules en cellule (PIC)"
Morrison, Mark, i Joshuah Miron. Molecular-Based Analysis of Cellulose Binding Proteins Involved with Adherence to Cellulose by Ruminococcus albus. United States Department of Agriculture, listopad 2000. http://dx.doi.org/10.32747/2000.7695844.bard.
Pełny tekst źródłaBlumwald, Eduardo, i Avi Sadka. Citric acid metabolism and mobilization in citrus fruit. United States Department of Agriculture, październik 2007. http://dx.doi.org/10.32747/2007.7587732.bard.
Pełny tekst źródłaFunkenstein, Bruria, i Cunming Duan. GH-IGF Axis in Sparus aurata: Possible Applications to Genetic Selection. United States Department of Agriculture, listopad 2000. http://dx.doi.org/10.32747/2000.7580665.bard.
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