Academic literature on the topic 'CryoEM en temps résolu'
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Journal articles on the topic "CryoEM en temps résolu"
Harder, Hans-Joachim. "Freiheit oder Einheit. Das Dilemma der deutschen Aussen- und Sicherheitspolitik 1949-1990." Revue d’Allemagne et des pays de langue allemande 32, no. 4 (2000): 525–43. http://dx.doi.org/10.3406/reval.2000.5617.
Full textCraig, Béatrice. "Solder les comptes : les sources de crédits dans les magasins généraux ruraux de l’est canadien au milieu du XIXe siècle." Journal of the Canadian Historical Association 13, no. 1 (February 9, 2006): 23–47. http://dx.doi.org/10.7202/031152ar.
Full textGraan, Andrew, and Carl Rommel. "Projects and Project Temporalities." Social Anthropology/Anthropologie Sociale 32, no. 3 (September 1, 2024): 1–19. https://doi.org/10.3167/saas.2024.320302.
Full textNebelin, Manfred. "Erich Ludendorff - ein völkischer Prophet." Revue d’Allemagne et des pays de langue allemande 32, no. 2 (2000): 245–56. http://dx.doi.org/10.3406/reval.2000.5590.
Full textTurgeon, A. "Détermination du schéma d'aménagement optimal d'une vallée pour des fins de production d'électricité." Revue des sciences de l'eau 1, no. 1-2 (April 12, 2005): 129–52. http://dx.doi.org/10.7202/705006ar.
Full textEl Mokretar, Sofiane, Rachid Miri, and Maiouf Belhamel. "Etude du Bilan d’Energie et de Masse d’un Séchoir de Type Serre Applications au Séchage des Produits Agro-alimentaires." Journal of Renewable Energies 7, no. 2 (December 31, 2004): 109–23. http://dx.doi.org/10.54966/jreen.v7i2.874.
Full textBabeau, André, and Françoise Charpin. "Détermination du financement optimal d'un logement par la théorie du cycle de vie." Revue de l'OFCE 47, no. 5 (November 1, 1993): 67–90. http://dx.doi.org/10.3917/reof.p1993.47n1.0067.
Full textBerroug, Fatiha, El Khadir Lakhal, Mohamed El Omari, and Hamid El Qarnia. "Simulation numérique des besoins énergétiques d’une serre agricole sous le climat de Marrakech - Maroc." Journal of Renewable Energies 13, no. 1 (October 25, 2023): 133–48. http://dx.doi.org/10.54966/jreen.v13i1.184.
Full textBazin, H., N. Gaborit, J. Vallague, C. Larbouret, E. Lopez-Crapez, A. Ho-Pun-Cheung, P. Garnero, and A. Pèlegrin. "R77 – Oral: Détection de l’oligomérisation des récepteurs de la famille HER par Transfert d’Énergie de Fluorescence en Temps Résolu (TR-FRET) : un nouveau biomarqueur potentiel de la réponse au traitement anti-HER." Bulletin du Cancer 97, no. 4 (October 2010): S45. http://dx.doi.org/10.1016/s0007-4551(15)30995-4.
Full textArago, François, and Michel Rochas. "Sur la prédiction du temps : Est-il possible dans l'état actuel de nos connaissances de prédire le temps qu'il fera à une époque et dans un lieu donné ? Peut-on espérer, en tous cas, que ce problème sera résolu un jour ? - Par François Arago (1786-1853) ; texte publié en 1858, réédité et introduit par Michel Rochas en 1994." La Météorologie 8, no. 5 (1994): 61. http://dx.doi.org/10.4267/2042/53403.
Full textDissertations / Theses on the topic "CryoEM en temps résolu"
Moissonnier, Loïck. "Etude fonctionnelle et structurale du transporteur de multiple drogues, BmrA, en condition d’équilibre et en temps résolu. Caractérisation structurale de BmrA en liposome par cryoEM." Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10213.
Full textAccording to the World Health Organization, antibiotic resistance is a major problem for humanity due to the emergence of multiresistant bacteria. The emergence of these resistances in bacteria is due to their ability to implement numerous strategies to prevent antibiotics from working. In particular, the first line of defense of these bacteria is the overexpression of ABC (ATP-Binding Cassette) transporters, which expel antibiotics out of the bacterial cell, reducing their concentrations below their cytotoxic thresholds. Over 50 years of study on these transporters have enabled the scientific community to establish a global mechanism, particularly thanks to the increasing acquisition of 3D structures. This has been closely linked to the technological and methodological evolution of structural biology in recent years, especially with the emergence of cryoEM. As knowledge advances, the questions become more precise, and many questions remain about understanding their functioning. As part of my project, I studied BmrA, one of these ABC transporters expressed in Bacillus subtilis, which confers resistance to cervimycin C, an antibiotic secreted by Streptomyces tendae, its natural competitor in the same biotope. Additionally, this transporter is capable of binding and transporting a wide variety of molecules, including many antibiotics, by adopting both a conformation that takes up the ligand (IF, inward-facing conformation) and an outward-facing conformation (OF) to release it. This ability to handle multiple molecules remains a highly debated question, especially in understanding the transport mechanism at the molecular level. During my Ph.D., I participated in a structural enzymology study on an inactive E504A mutant in the presence of ligands (Rhodamine 6G, Hoechst 33342) to improve knowledge of this mechanism. These ligands act as allosteric effectors on the ATP binding of BmrA, impacting the transition between IF and OF conformations. The resolution of several 3D structures by cryoEM was achieved by varying the concentration of ATP. An analysis of the flexibility of each of these conformations highlighted the molecular rearrangements that BmrA can adopt to ensure its polyspecificity. Moreover, I provided numerous functional insights regarding the coupling between ligand transport and the ATPase activity of this transporter. The second part of my work focused on studying the conformational transition occurring in BmrA after ATP binding using so-called "time-resolved" techniques. The objective was to monitor these conformational changes over time using the intrinsic fluorescence of BmrA coupled with cryoEM. I developed and optimized the experimental conditions to conduct this study, particularly acquiring kinetic and dynamic information on mutants as well as the wild-type protein. Finally, the last part of the manuscript involved reconstituting BmrA in a more native amphipathic environment than detergents to obtain its 3D structure by cryoEM. I optimized this reconstitution protocol to obtain the best possible sample for grid deposition. During this process, I characterized the formation of the proteoliposome at each stage of the protocol by observing it with cryoEM. Thanks to this study, I was able to obtain the first 2D classes of BmrA in a lipid bilayer. In conclusion, this thesis offers a new way to study the structure-function relationship of proteins by developing structural enzymology tools and methodology to visualize the dynamics of this ABC transporter, as well as a first approach to studying it in liposomes
Beltako, Katawoura. "Transport résolu en temps dans les nanodispositifs optoélectroniques quantiques." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0516/document.
Full textRecent advances in excitation frequencies beyond gigahertz now offer the ability to probe the internal response of a quantum system. Time dependence in future nanoelectronics has arisen as the major challenge of next advances in device modeling and simulations. Oscillating gate voltages, time-dependent bias but also applied illumination pulses, all are examples of key issues in quantum transport simulations which require novel approaches as well as efficient numerical methods. This is the context of this thesis, which focuses on three areas. A first part concerns the methodology. We proposed a suitable technique for the simulation of time-dependent transport in nano-systems interacting with lightradiation, relying on the state of the art in quantum statistical methodologies, with a special attention to the formalism of non-equilibrium Green’s functions. The second part of the thesis is devoted to the development and implementationof efficient algorithms to simulate time-resolved quantities for quantum optoelectronic nanodevices. Finally, this new method and the developed algorithms have enabled us to investigate carrier transfer processes in molecular nanojunctions. This study led us to the elucidation of unsuspected physical effects and captivating experimental proposals for the determination of internal quantum characteristics of these nanodevices. This work provides us with a valuable toolfor ultrafast quantum transport simulation. It also gives indeed an insight on the relevance of transient dynamics in the understanding of time-resolved optoelectronic nanodevice operations and open avenues towards the design of futureultrafast optoelectronics
Beltako, Katawoura. "Transport résolu en temps dans les nanodispositifs optoélectroniques quantiques." Electronic Thesis or Diss., Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0516.
Full textRecent advances in excitation frequencies beyond gigahertz now offer the ability to probe the internal response of a quantum system. Time dependence in future nanoelectronics has arisen as the major challenge of next advances in device modeling and simulations. Oscillating gate voltages, time-dependent bias but also applied illumination pulses, all are examples of key issues in quantum transport simulations which require novel approaches as well as efficient numerical methods. This is the context of this thesis, which focuses on three areas. A first part concerns the methodology. We proposed a suitable technique for the simulation of time-dependent transport in nano-systems interacting with lightradiation, relying on the state of the art in quantum statistical methodologies, with a special attention to the formalism of non-equilibrium Green’s functions. The second part of the thesis is devoted to the development and implementationof efficient algorithms to simulate time-resolved quantities for quantum optoelectronic nanodevices. Finally, this new method and the developed algorithms have enabled us to investigate carrier transfer processes in molecular nanojunctions. This study led us to the elucidation of unsuspected physical effects and captivating experimental proposals for the determination of internal quantum characteristics of these nanodevices. This work provides us with a valuable toolfor ultrafast quantum transport simulation. It also gives indeed an insight on the relevance of transient dynamics in the understanding of time-resolved optoelectronic nanodevice operations and open avenues towards the design of futureultrafast optoelectronics
Mendonca, Lucille. "Dynamique conformationnelle des protéines étudiée par dichroïsme circulaire résolu en temps." Phd thesis, Ecole Polytechnique X, 2013. http://pastel.archives-ouvertes.fr/pastel-00843425.
Full textNiezborala, Claire. "Dynamique de repliement des protéines étudiées par dichroïsme circulaire résolu en temps." Phd thesis, Ecole Polytechnique X, 2008. http://pastel.archives-ouvertes.fr/pastel-00004435.
Full textLopez, Evelyne. "Cryptate d'europium (III) trisbipyridine et détection d'acides nucléiques ciblés par fluorescence en temps résolu." Montpellier 2, 1992. http://www.theses.fr/1992MON20284.
Full textRubin, Christophe. "Préparation d'une expérience de diffraction de Laue en temps résolu : aspect expérimental et numérique de la méthode." Grenoble 1, 1994. http://www.theses.fr/1994GRE10125.
Full textHubert, Fabien. "Nucléation et croissance de nanocylindres d'or : mécanismes de développement de l'anisotropie et suivi in situ résolu en temps." Paris 6, 2009. http://www.theses.fr/2009PA066651.
Full textCourvoisier, Céline. "Etude d'un continuum de lumière en régime femtoseconde. Applications au domaine biologique : microscopies et spectroscopie en temps résolu." Phd thesis, Besançon, 2006. http://www.theses.fr/2006BESA2027.
Full textLange, Frédéric. "Développement d’un système de Topographie Optique Diffuse résolu en temps et hyperspectral pour la détection de l’activité cérébrale humaine." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI012.
Full textThe Diffuse Optical Tomography (DOT) is now a relevant tool for the functional medical imaging. One of the most widespread application of this technic is the imaging of the human brain function. Indeed, this technic has numerous advantages, especially the richness of the optical contrast accessible. Nevertheless, some drawbacks are curbing the use of the technic, especially for applications on adults in clinics or in particular environment like in the monitoring of sports activity. Indeed, the measured signal contains information coming from different depths of the head, so it contains different tissues types like skin and brain. Yet, the response of interest is the one of the brain, and the one of the skin is blurring it. In this context, this work is about the development of a new instrument of DOT capable of acquiring spatial and spectral information, as well as the arrival time of photons simultaneously and at a high acquisition speed. During the PhD thesis the instrument has been developed and characterised on optical phantoms. Then, it has been validated in-vivo on adults, especially by detecting the cortical activation of the prefrontal cortex, in response to a simple calculation task. Multidimensional information acquired by our system allowed us to better distinguish between superficial and deep layers. It also allowed us to distinguish between the physiological signature of those tissues, and especially to detect the variations of concentration in Cytochrom-c-oxydase. Concurrently to this experimental work, Monte-Carlo simulation of light propagation in a model off a human head has been done. Those simulations allowed us to better understand the light propagation in tissues as function as their wavelength, and to validate the relevance of our multidimensional approach. Perspectives of this work is to use the developed instrument to monitor the brain’s response of the Human adult to several solicitations like tDCS stimulation, or sports activity
Book chapters on the topic "CryoEM en temps résolu"
BELKHARROUBI, Lakhdar, and Khadidja YAHYAOUI. "La résolution du problème d’équilibrage d’une chaîne de montage à modèles mixtes." In Optimisation et apprentissage, 93–119. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9071.ch4.
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