Academic literature on the topic 'Spectroscopie d'absorption in vivo'
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Journal articles on the topic "Spectroscopie d'absorption in vivo"
Videau, J. J., B. Tsobgny, J. Portier, B. Tanguy, and P. Hagenmuller. "Approche structurale par spectroscopie d'absorption infrarouge de verres thiohalogenes d'antimoine." Materials Research Bulletin 25, no. 2 (February 1990): 231–39. http://dx.doi.org/10.1016/0025-5408(90)90050-c.
Full textLecherbourg, L., S. Fourmaux, J. C. Kieffer, F. Martin, H. Pépin, M. Chaker, S. Magnan, and C. Y. Coté. "Source X-UV pour la spectroscopie d'absorption en régime femtoseconde." Journal de Physique IV (Proceedings) 138, no. 1 (December 2006): 63–72. http://dx.doi.org/10.1051/jp4:2006138008.
Full textCoursimault, F., O. Motret, R. Viladrosa, and J. M. Pouvesle. "Mesure de la concentration absolue de SiO par spectroscopie d'absorption UV." Journal de Physique IV (Proceedings) 108 (June 2003): 131–34. http://dx.doi.org/10.1051/jp4:20030613.
Full textMeunier, P., M. Coustale, and J. Arriau. "Conformations Privilégiées de Dérivés des Bithiophenes: Étude par Spectroscopie d'Absorption Électronique." Bulletin des Sociétés Chimiques Belges 87, no. 1 (September 1, 2010): 27–39. http://dx.doi.org/10.1002/bscb.19780870105.
Full textMeunier, P., and Et J. Arriau. "Conformations privilegiées des sulfures de dithienyles: Étude PAR spectroscopie d'absorption électronique." Bulletin des Sociétés Chimiques Belges 89, no. 5 (September 1, 2010): 353–58. http://dx.doi.org/10.1002/bscb.19800890505.
Full textPIZZINI, S., F. BAUDELET, A. FONTAINE, D. CHANDESRIS, H. MAGNAN, A. FERT, F. PETROFF, and C. MARLIÈRE. "Structure cristallographique de multicouches métalliques et magnétiques étudiées par spectroscopie d'absorption X." Le Journal de Physique IV 02, no. C3 (December 1992): C3–185—C3–189. http://dx.doi.org/10.1051/jp4:1992326.
Full textHong, D., G. Sandolache, T. Capelle, J. M. Bauchire, E. Le Menn, and C. Fleurier. "Une source de rayonnement développée pour des mesures optiques de spectroscopie d'absorption large bande." Journal de Physique IV (Proceedings) 108 (June 2003): 285–88. http://dx.doi.org/10.1051/jp4:20030645.
Full textRomanini, D. "Spectroscopie d'absorption quantitative à très haute sensiblité : "ring down" cavité et absorption intracavité laser." Annales de Physique 20, no. 5-6 (1995): 655–74. http://dx.doi.org/10.1051/anphys:199556059.
Full textPirlot, G. "Note Sur la Purification de l'Hexane Comme Solvant Pour la Spectroscopie d'Absorption dans l'Ultra-Violet." Bulletin des Sociétés Chimiques Belges 56, no. 9-12 (September 1, 2010): 291–95. http://dx.doi.org/10.1002/bscb.19470560903.
Full textVandegans, J., P. Rosseels, W. Verplancken, and J. C. Haurez. "Quelques interferences sur le dosage du plomb dans les eaux alimentaires par spectroscopie d'absorption atomique sans flamme." Analytica Chimica Acta 193 (1987): 169–78. http://dx.doi.org/10.1016/s0003-2670(00)86149-8.
Full textDissertations / Theses on the topic "Spectroscopie d'absorption in vivo"
Hani, Umama. "Regulation of cyclic and pseudocyclic electron transport." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASB044.
Full textPhotosynthesis acts as the main gateway for energy production in natural environments and relies on the electron flow via several complexes in the thylakoid membrane of photosynthetic organisms. The major flux is “linear” electron transport, which involves the transfer of electrons from water to NADP⁺, coupled with the ATP synthesis. Photosynthetic water oxidation is catalyzed by manganese cluster (Mn₄CaO₅) at photosystem II (PSII). To ensure an optimal balance between the amount of energy produced and consumed, photosynthetic organisms divert part of the harvested light energy from “linear” to “alternative” electron transport pathways. Among those pathways are cyclic and pseudocyclic electron transport around Photosystem I (PSI), which supplies extra ATP to meet metabolic demands. Moreover, specialized redox systems, called " thioredoxins " are responsible for maintaining the redox status and fast acclimation of plants to constantly fluctuating environments, which could otherwise lead to toxic levels of reactive oxygen species (ROS) production. We studied the effects of manganese (Mn) excess and deficiency on photosynthetic electron transport in the liverwort Marchantia polymorpha. We have shown that Mn homeostasis has an effect at both metabolic and photosynthetic levels. Moreover, we have studied the in vivo redox changes of P700 and PC using KLAS-NIR spectrophotometer and have shown that Mn deficiency seems to enhance cyclic electron transport (CET), that may indicate the presence of supercomplexes containing PSI and cytochrome b6f complex. The second part of this PhD focused on the redox regulation of oxygen reduction (pseudocyclic electron transport) at the PSI acceptor side. By using indirect spin trapping EPR spectroscopy, we have shown that Arabidopsis thaliana wild type plants generate more ROS in short day (SD) photoperiod than in long day (LD) photoperiod. Further, the current study highlighted the role of several players in redox regulation; including thioredoxins and several other lumenal and stromal proteins. Moreover, I explored that the transfer of reducing powers from stroma to lumen is mediated by a protein called CCDA and that reversible attachment of Trxm to the thylakoid membrane acts as the driving force for higher ROS under the SD light regime. Overall, this research establishes a strong connection between cyclic and pseudocyclic electron transport in terms of thioredoxins mediated redox regulations and also paves the way to further explore CET under different stress conditions
Le, Guyader Laurent. "Utilisation de sondes pyréniques in vivo pour caractériser l'état de phase global de la membrane plasmique de cellules eucaryotes : application à la détection de la liaison d'agonistes au récepteur "delta" opioïde murin." Toulouse 3, 2007. http://thesesups.ups-tlse.fr/53/.
Full textThe development of tools for the screening of new receptors’ agonists is a major issue for pharmaceutical research. Currently, the main targets used are the G-protein coupled receptor of the plasma membrane which the activation trigger the signaling pathways involved in many cell functions. The goal of this thesis is the detection, using a spectrofluorometry approach in vivo, of the signaling pathway ignition by the mouse delta opioid receptor (mDOR). DOR is assumed to generate a relocalisation of some lipids (cholesterol) while agonist binding leading to the formation of a liquid-ordered phase (lo). Thus two fluorescent probes have been synthesized, which the 3beta-hydroxy-pregn-5-ene-21-(1-methylpyrenyl)-20-methylidene. Data from calorimetry and RMN-2H studies show that this probe induces the same lipid membranes disturbance than cholesterol. Absorption data of the probe allowed the assessment of a self-association process of cholesterol in model membranes, which is as a function of the acyl-chains saturation degree of phospholipids. Then the polarity sensitive property of the probe has been used to distinguish between ld and lo phases in model membranes. Finally, we incorporated the probes in CHO cells over-expressing mDOR to monitor, by fluorescence spectroscopy, the mean phase state change of the plasma membrane triggered by a mDOR agonist. This is the first step of a new screening approach
Dossou, Samuel. "Spectres induits et fonction d'autocorrélation de H2 sous haute pression." Paris 13, 1985. http://www.theses.fr/1985PA132014.
Full textMathonière, Corine. "Spectroscopie d'absorption de composes polynuclaires : complementarite avec proprietes magnetiques." Paris 11, 1993. http://www.theses.fr/1993PA112233.
Full textGotte, Vincent. "Etudes structurales par spectroscopie d'absorption des rayons X polarisés." Nancy 1, 1999. http://docnum.univ-lorraine.fr/public/SCD_T_1999_0248_GOTTE.pdf.
Full textSarger, Laurent. "Extension à l'ultra-violet de la spectroscopie d'absorption saturée." Bordeaux 1, 1985. http://www.theses.fr/1985BOR10605.
Full textLe, Garrec Hélène. "Etude et optimisation de la limite de détection en spectrophotométrie d'absorption atomique : contribution à la compréhension des mécanismes en milieu eaux naturelles." Brest, 1997. http://www.theses.fr/1997BRES2006.
Full textDouahi, Adel. "Contributions au développement d'une microhorloge CPT : étude des microcellules à vapeur de césium." Besançon, 2009. http://www.theses.fr/2009BESA2047.
Full textThis thesis presents contributions to the development of a CPT (Coherent Population Trapping) micro-clock, the work is focused on the : study, development and characterization of cesium vapor microcells. The micro-clock are about the size of few cubic centimeters, consume less than 75 thousandths of a watt enabling the clock to be operated on batteries (type AAA for example) and are stable to one part in I0 billion, equivalent to a deviation of one second every 300 years. This clock will consist of an integrated system (MEMS) with a diode laser modulated (at half the frequency transition hyper-fine), a cell containing Cesium vapor and a photo detector. The principle is the coherent population trapping witch allows to obtain a resonance curve without Doppler effect and without recourse to a resonant cavity microwave. This "physics package" could be fabricated and assembled on semiconductor wafers using existing techniques for making micro-electro-mechanical systems (MEMS), offering the potential for low-cost mass production of an atomic clock permitting easy integration in electronics devices. Moreover, we present the realization of micro-cell absorption witch is a problem in itself because it involves the study of phenomena of degassing in small volumes, problems of collisions of atoms with walls. A completely original technology for generating vapor cesium once the cell is sealed is presented. We believe that this technology will solve the problems of reliability and long-term drift inherent in the proposed technologies elsewhere. A patent has been tiled to protect this new technology. A theoretical study of linear and nonlinear absorption has been conducted to prove the feasibility of a micro-clock with cesium microcell with buffer gas. Finally, optoelectronic components and spectroscopic measures are also presented
Chambin, Odile. "Validation d'un modele d'absorption percutanee ex vivo : approche correlative avec des parametres in vivo." Dijon, 1995. http://www.theses.fr/1995DIJOPE02.
Full textChung, Chia-Ling. "Study of DNA- SWNT conjugation for nanoelectronic purposes : realisation of transistors and SWNT positioning in DNA T scaffold." Paris 11, 2010. http://www.theses.fr/2010PA112033.
Full textIn this thesis DNA has been envisioned as a scaffold for self assembly of SWNTS circuits on a substrate to realise this ambitious vision, several steps are needed and we address three of them in this thesis : I) DNA SWNT conjugation experiments. We test two approaches: covalent Approach (chapter2) and non –convalent approach (chapter 3). In order to evaluate which approach is suitable to fabricate DNA assembled SWNT-FET. Our results reveal that non-convalent approach by biotin-streptavidin system is the more appropriate for our DNA-based SWNT-FET fabrication, because of its superior linkage yield. (II) The assembly of a T-Shape DNA scaffold. In chapiter 4, we present a three branched DNA scaffold which can be the template of a SWNT field effect transistor. We design an artificial three branched DNA structure that mimics the geometry of an individual gated transistor. Our results demonstrate that it is possible to design sub-micrometric branched DNA structures for a given function, and directly an specifically localize one SWNT onto a three armed functionalized DNA template. (III) Finally, the fabrication of bio-directed SWNT-FET (chapter 5) through the following steps : (A) formation of DNA SWNT complexes using biotin-streptavidin system, (B) selective DNA metallization, (C) fabrication of electrode contacts on the metallized DNA strand by lithography and (D) the conductivity measurement the results reveal, the feasibility of the approach ant that our bio-directed SWNT-FET presents the typical P type SWNT-FET
Books on the topic "Spectroscopie d'absorption in vivo"
Voinovitc, I. A. Analyse des sols, roches et ciments: Méthodes choisies. Paris: Masson, 1988.
Find full textPéré, Jean-Pierre. Techniques spectroscopiques en biochimie analytique. Bordeaux [France]: Centre régional de documentation pédagogique d'Aquitaine, 1999.
Find full textDiehl, P. In-vivo Magnetic Resonance Spectroscopy Ii. Edited by P. Diehl. Springer, 1992.
Find full textWelz, Bernhard, and Michael Sperling. Atomabsorptionsspektrometrie. Wiley & Sons, Incorporated, John, 2012.
Find full textAngino, Ernest E., and Gale K. Billings. Atomic Absorption Spectrometry in Geology. Elsevier, 2013.
Find full textWelz, Bernhard, and Michael Sperling. Atomabsorptionsspektrometrie. Wiley & Sons, Limited, John, 2005.
Find full textIn vivo NMR spectroscopy: Principles and techniques. Chichester: Wiley, 1998.
Find full textIn vivo NMR spectroscopy: Principles and techniques. 2nd ed. Chichester, West Sussex, England: John Wiley & Sons, 2007.
Find full textGraaf, Robin A. De. In Vivo NMR Spectroscopy: Principles and Techniques. Wiley & Sons, Limited, John, 2007.
Find full textHigh-Resolution XAS/XES: Analyzing Electronic Structures of Catalysts. Taylor & Francis Group, 2014.
Find full textBook chapters on the topic "Spectroscopie d'absorption in vivo"
FLAMENT, Julien, Hélène RATINEY, and Fawzi BOUMEZBEUR. "Spectroscopie RMN in vivo et imagerie métabolique." In Les enjeux de l’IRM, 243–84. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9113.ch9.
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