Download or read book ETUDE PAR SPECTROSCOPIE DIFFERENTIELLE INFRAROUGE A TRANSFORMEE DE FOURIER DES REACTIONS PRIMAIRES DE LA PHOTOSYNTHESE written by Bernard Tavitian and published by . This book was released on 1987 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photosynthetic Reaction Center written by Johann Deisenhofer and published by Academic Press. This book was released on 2013-10-22 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: The availability of the photosynthetic reaction center's structure at an atomic resolution of less than three angstroms has revolutionized research. This protein is the first integral membrane protein whose structure has been determined with such precision. Each volume of the Photosynthetic Reaction Center contains original research, methods, and reviews. Together, these volumes cover our current understanding of how photosynthesis converts light energy into stored chemical energy. Volume II details the electron transfer process; it is oriented to the physical aspects of photosynthesis. It thus primarily discusses bacterial photosynthesis and model compounds. Volume II features the very complex and rapidly evolving issues associated with the theory of electron transfer in the bacterial reaction center, and explores picosecond and femtosecond spectroscopy. This volume also covers holeburning spectroscopy; primary events of bacterial photosynthesis with emphasis on the application of large, external electric fields designed to manipulate and probe mechanisms of the initial chemistry; the role of accessory carotenoid pigments; the techniques of infrared spectroscopy and magnetic resonance as applied to photosynthesis; and the interplay between natural and artificial photosynthesis.
Download or read book ETUDE PAR SPECTROSCOPIE VIBRATIONNELLE INFRAROUGE A TRANSFORMEE DE FOURIER DU TRANSFERT D ELECTRON DANS LE PHOTOSYSTEME II DES PLANTES written by CATHERINE.. BERTHOMIEU and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA SPECTROSCOPIE VIBRATIONNELLE INFRAROUGE A TRANSFORMEE DE FOURIER (IRTF) A ETE UTILISEE POUR ETUDIER LES INTERACTIONS ENTRE PROTEINE ET COFACTEURS AU SEIN DU PHOTOSYSTEME II DES PLANTES ET SUIVRE LEUR EVOLUTION AU COURS DE DIFFERENTES ETAPES DE TRANSFERT D'ELECTRONS. LES SPECTRES IRTF DIFFERENTIELS CONTENANT UNIQUEMENT LES CONTRIBUTIONS VIBRATIONNELLES DUES A LA PHOTOREDUCTION DES QUINONES Q#A ET Q#B ONT ETE GENERES POUR LE PHOTOSYSTEME II. LA REDUCTION DES QUINONES REVELE LA CONTRIBUTION DES MODES VIBRATIONNELS DE CES ACCEPTEURS (MODES (CO) ET (CC)) ET DE QUELQUES ACIDES AMINES MAIS NE S'ACCOMPAGNE PAS D'UN CHANGEMENT DE CONFORMATION SIGNIFICATIF DE LA PROTEINE. LES SPECTRES PRESENTENT DE FORTES ANALOGIES AVEC LES SPECTRES EQUIVALENTS OBTENUS SUR LES BACTERIES POURPRES PHOTOSYNTHETIQUES. CES ANALOGIES ONT PERMIS L'ATTRIBUTION DE CERTAINS SIGNAUX AUX MODES DE VIBRATION D'ACIDES AMINES COMMUNS AUX PLANTES ET BACTERIES EN INTERACTION AVEC LA QUINONE Q#A. LA PHOTOOXYDATION DES DONNEURS D'ELECTRON TYROSINE, CHLOROPHYLLE ET CYTOCHROME B559 A ETE CARACTERISEE. DES STRATEGIES COMME LE MARQUAGE ISOTOPIQUE ET LE COUPLAGE DE L'ELECTROCHIMIE AVEC LA SPECTROSCOPIE DIFFERENTIELLE IR (SPECTROELECTROCHIMIE) POUR L'ETUDE DE COMPOSES MODELES IN VITRO ONT ETE UTILISEES AFIN D'INTERPRETER LES SPECTRES OBTENUS IN SITU. LA SPECTROELECTROCHIMIE DE COMPLEXES MODELES HEME-LIGAND A PERMIS DE DETERMINER LES MARQUEURS IR DE L'ETAT D'OXYDATION DE L'HEME DES CYTOCHROMES B. LA SPECTROELECTROCHIMIE DE LA PROTEINE MEMBRANAIRE CYTOCHROME B559 ISOLEE A PERMIS DE DETERMINER LES MODIFICATIONS DE L'HEME ET LES CHANGEMENTS D'INTERACTIONS HEME-PROTEINE AU COURS DE L'OXYDOREDUCTION. L'OXYDATION DU CYTOCHROME B559 EST CARACTERISEE PAR LE CHANGEMENT D'ENVIRONNEMENT DE CARBONYLES PEPTIDIQUES
Download or read book Chlorophylls written by Hugo Scheer and published by Springer. This book was released on 1991-05-24 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etude de r actions radicalaires des milieux interstellaires par spectroscopie infrarouge transform e de Fourier de la phase condens e la phase dilu e written by Claire Pirim and published by . This book was released on 2011 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: La réaction d’hydrogénation du monoxyde de carbone est un processus clé au sein des grains de poussière interstellaire, conduisant à la formation du méthanol, lui-même pouvant être transformé, sous l’action de rayonnements énergétiques, en molécules plus complexes à caractère prébiotique. Ma thèse consiste en l’étude de la réaction [H+CO], dans un intervalle de température compris entre 3 et 20 K, par spectroscopie infrarouge à transformée de Fourier. Pour cela, nous abordons la réaction [H+CO] par une approche innovante, en conjuguant une température de 3 K avec la technique de co-injection des réactifs H et CO. Nous simulons alors un comportement plus réaliste de la réaction, où la construction de la glace de CO s’effectue parallèlement à la conversion de cette dernière en méthanol. Nous avons ainsi accès, pour la première fois, à l’ensemble des étapes réactionnelles de la réaction [H+CO]. Nous exploitons cet avantage pour identifier précisément le rôle catalytique que peuvent avoir les molécules d’eau sur chacune des étapes de la réaction [H+CO]. Nous mettons notamment en évidence que la présence spécifique des molécules d’eau renforce le taux de production des produits de la réaction et change la cinétique de cette dernière en accentuant la conversion des produits de la réaction vers les espèces les plus saturées en hydrogène, et ce, même pour une température aussi basse que 3 K. De plus, nous prouvons expérimentalement que le couplage d’une basse température avec une condensation des réactifs en phase solide supporte la tenue de processus réactionnels quantiques, entre des molécules CO et des atomes d’hydrogène dans leur état énergétique fondamental
Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.
Download or read book Aeronomy written by P. M. Banks and published by Elsevier. This book was released on 2013-09-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronomy, Part A is an attempt to make a comprehensive exposition of the processes in aeronomy, the study of composition, movement, and thermal balance of the upper regions of the planetary atmosphere. The text covers topics such as atmospheric regions and atmospheric density, the temperature and molecular mass of the atmosphere; the permanent constituents and the molecular and isotonic composition of the homosphere; and the transition from the homosphere to the heterosphere. Also covered are topics such as the temperature gradient and energies in the thermosphere, conditions at 200km and above 250km, solar radiation and ionization, and aeronomic reactions. The book is recommended for scientists, especially natural physicists, who would like to know more about the field of aeronomy and its advances.
Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.
Download or read book Wine and Tourism written by Marta Peris-Ortiz and published by Springer. This book was released on 2015-12-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to show how wine tourism can be used as a model for sustainable economic development, driving economic growth and social development in some locations. It will explore the interaction between tourism and viticulture in wine tourism destinations, while also explaining some of the repercussions of these activities. This book covers various topics including regional development, environmental management, sustainable viticulture, quality management in wineries and wine tourism routes among others. Wine tourism, which combines two important yet distinct economic activities (i.e., tourism and viticulture), has recently emerged as a new tourism product driven by tourists’ search for new experiences and wineries’ need to diversify their businesses and seek new revenue streams to boost sales. This new form of tourism, which typically takes place in rural areas and which combines wine production with tourist activities, is becoming important for such regions by providing a complementary income source. It provides a model for sustainable economic development for these regions, which for various reasons may otherwise struggle to develop. Featuring cases and business implications from various locations, this book provides an important source of knowledge—both theoretical and practical—suitable to academics, scholars, researchers, and practitioners in the tourism sector and the wine industry.
Download or read book Popular Astronomy written by Camille Flammarion and published by . This book was released on 1894 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ladybird Illustrated written by D H Lawrence and published by . This book was released on 2020-11-09 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Ladybird is a long tale or novella by D. H. Lawrence. It was first drafted in 1915 as a short story entitled The Thimble. Lawrence rewrote and extended it under a new title in December 1921 and sent the final version to his English agent on 9 January 1922. It was collected with two other tales, The Captain's Doll and The Fox, and the three novellas were then published in London by Martin Secker in March 1923 under the title The Ladybird and in New York by Thomas Seltzer as The Captain's Doll in April 1923."
Download or read book Cambridge Yearbook of European Legal Studies Vol 13 2010 2011 written by Catherine Barnard and published by Bloomsbury Publishing. This book was released on 2011-12-15 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Yearbook of European Legal Studies provides a forum for the scrutiny of significant issues in EU Law, the law of the European Convention on Human Rights, and Comparative Law with a 'European' dimension, and particularly those issues which have come to the fore during the year preceding publication. The contributions appearing in the collection are commissioned by the Centre for European Legal Studies (CELS) Cambridge, a research centre in the Law Faculty of the University of Cambridge specialising in European legal issues. The papers presented are at the cutting edge of the fields which they address, and reflect the views of recognised experts drawn from the University world, legal practice, and the institutions of both the EU and its Member States. Inclusion of the comparative dimension brings a fresh perspective to the study of European law, and highlights the effects of globalisation of the law more generally, and the resulting cross fertilisation of norms and ideas that has occurred among previously sovereign and separate legal orders. The Cambridge Yearbook of European Legal Studies is an invaluable resource for those wishing to keep pace with legal developments in the fast moving world of European integration. INDIVIDUAL CHAPTERS Please click on the link below to purchase individual chapters from Volume 13 through Ingenta Connect: www.ingentaconnect.com SUBSCRIPTION TO SERIES To place an annual online subscription or a print standing order through Hart Publishing please click on the link below. Please note that any customers who have a standing order for the printed volumes will now be entitled to free online access. www.hartjournals.co.uk/cyels/subs Editorial Advisory Board: Albertina Albors-Llorens, John Bell, Alan Dashwood, Simon Deakin, David Feldman, Richard Fentiman, Angus Johnston, John Spencer Founding Editors: Alan Dashwood and Angela Ward Ius Commune Prize 2012 Alexandre Saydé wrote Chapter 15 in this volume entitled: 'One Law, Two Competitions: An Enquiry into the Contradictions of Free Movement Law' and we are delighted to announce that he has been awarded the Ius Commune Prize 2012.
Download or read book Notes on the Minor Prophets written by Henry Allan Ironside and published by . This book was released on 1955 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Socialism Perestroika and the Dilemmas of Soviet Economic Reform written by John E Tedstrom and published by Routledge. This book was released on 2021-12-13 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights that Soviet economic planners and politicians must come to recognize the need to make fundamental changes, not simply incremental refinements, in the failing Soviet system. It examines the dynamics of the process of perestroika and the complexity of individual economic issues.
