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49 produkter
49 produkter
Mode Selective Chemistry
Proceedings of the Twenty-Fourth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, May 20–23, 1991
Inbunden, Engelska, 1991
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The Twenty Fourth Jerusalem Symposium reflected the high standards of these distinguished scientific meetings, which convene once a year at the Israel Academy of Sciences and Humanities in Jerusalem to discuss a specific topic in the broad area of quantum chemistry and biochemistry. The topic at this year's Jerusalem Symposium was mode selective chemistry, which constitutes a truly interdisciplinary subject of central interest in the areas of chemical physics, photochemistry and photobiology. The main theme of the Symposium was built around the exploration of the possibility and conditions for non-statistical reaction dynamics in molecules, van der Waals molecules, clusters and condensed phases. The main issues addressed photoselective and coherent excitation modes, bottlenecks for intramolecular vibrational energy redistribution, the consequences of the internal structure of many-atom systems and of rotational vibrational level structure for intramolecular dynamics, bond selective photodissociation, ultrafast chemical clocks for energy disposal, coherent control of photochemical reactions and nonstatistical unimolecular reaction dynamics. The interdisciplinary nature of this research area was deliberated by intensive and extensive interactions between theory and experiment. This volume provides a record of the invited lectures at the Symposium.
Membrane Proteins: Structures, Interactions and Models
Proceedings of the Twenty-Fifth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, May 18–21,1992
Inbunden, Engelska, 1992
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The main theme of the symposium reported in this book was the presentation and discussion of the direct and indirect evidence available on the three-dimensional structure of membrane proteins and on the interactions relevant to their functioning. Among the topics discussed are the lessons of the known 3D structures, the prospects in 3D structure determination (by X-rays, electron microscopy, neutron scattering, NMR, optical methods, site-directed mutagenesis, theoretical calculations and modeling, etc) and the interactions with lipids. The originality of the Symposium, reflected in the content of the book, was to bring together well-known specialists in the biochemistry of the proteins considered (bacteriorhodopsin, receptors, acetylcholine esterase, glycophorine, porines, etc) and experts in the physicochemical, chemical and theoretical methods utilized.
Reaction Dynamics in Clusters and Condensed Phases
Proceedings of the Twenty-Sixth Jerusalem Symposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, May 17–20, 1993
Inbunden, Engelska, 1993
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This volume contains the papers presented at the 26th Jerusalem Symposium. The topic of this meeting was reaction dynamics in clusters and condensed phases, which is of central interest in areas of chemical dynamics, kinetics, photochemistry and condensed matter chemical physics. The main theme of the conference was the interrelationship between the dynamics in large finite clusters and in infinite bulk systems. Issues addressed include microscopic and macroscopic solvation phenomena, cluster and bulk spectroscopy, photodissociation and vibrational predissociation, cage effects, interphase dynamics, reaction and energy transfer in clusters, dense fluids, liquids, solids and biophysical systems.
Modelling of Biomolecular Structures and Mechanisms
Proceedings of the Twenty-seventh Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, May 23-26, 1994
Inbunden, Engelska, 1995
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Gathering together a number of experts in the world, the 27th Jerusalem Symposium was devoted to the theme of the modelling of biomolecular structures and mechanisms. As a result of recent growth in both importance and audience, the papers contained in this volume present an evaluation of the status of the present knowledge in this field. The main topics covered by this year's Symposium include nucleic acids and their interactions, proteins and their interaction, membranes and their interactions, enzymatic processes and the pharmacological and medical aspects of these subjects. Readers should benefit from the interdisciplinary approach which provides coverage of both theoretical and experimental advances.
Molecular and Quantum Pharmacology
Proceedings of the Seventh Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, March 31st–April 4th, 1974
Inbunden, Engelska, 1975
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The seventh Jerusalem Symposium has tried to penetrate into a field of research towards which the efforts of a large number of the most variegated modern techniques are conversing: molecular and quantum pharmacology. The hope to elucidate the mode of action of drugs, to establish correlations between the electronic and con formational structures of drugs and their mode of action and level of activity, to derive from these data the nature of the cellular receptors and an understanding of the interaction of the drugs with those receptors - is a strong stimulus to enlarge and deepen the research efforts with the ultimate view to rationalize the design of more efficient and more specific drugs. The Symposium represents an attempt to survey the progress made so far in this respect and the methods and efforts employed in order to arrive at even greater achievements. The presentation of this Symposium differs somewhat from that of the preceding ones. Owing to the political events which disturbed the peace in the Middle East and therefore the normal activities of commerce and industry in Israel at least temporarily, the printing and distribution of this volume were entrusted to the Reidel Publishing Company. We wish to thank them for their very efficient col1aboration and for all their efforts to publish this volume with a minimum delay.
Del 6 - Jerusalem Symposia
Chemical and Biochemical Reactivity
Proceedings of an International Symposium held in Jerusalem, 9–13 April 1973
Inbunden, Engelska, 1975
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COMPARED WITH the first five Jerusalem Symposia on Quantum Chemistry and Biochem istry, this sixth Symposium represents a step into a new and largely uncharted area: that of Chemical and Biochemical Reactivity. While the previous Symposia dealt principally with the 'static' data, describing molecules-even large ones-of chemical and biological in terest, the present Symposium attempts to deal with 'dynamic' phenomena and the factors which determine their course. The complexities of these systems and the ensuing theoreti cal (and experimental) difficulties are, obviously, much more pronounced. Nevertheless, we hope that the present volume of Proceedings makes a positive contribu tion to the very interesting field of Reactivity: the lively discussions which followed every paper seem to us a good indication that our hope is justified. As last year, we have includ ed in these Proceedings only those portions of the discussions which the participants themselves formulated in writing, and, of course, the replies given by the speakers, to whom we transmitted the written formulations. We must apologize to the participants in the Symposium for the long delay in publishing this volume. The October 1973 War, and, even more, its aftermath, made it impossible for us to produce the work by our scheduled date of April 1, 1974, as Israel's manpower, especially its technically skilled manpower, was not always free for its normal occupation.
Environmental Effects on Molecular Structure and Properties
Proceedings of the Eighth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, April 7th–11th 1975
Inbunden, Engelska, 1975
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The holding of the 8th Jerusalem Symposium was saddened by the sudden death of Professor Ernst D. Bergmann at the very eve of this meeting. With him disappeared one of the leading world scientists in the field of physical chemistry and biochemistry. His innumerable friends and admirers over the whole world mourn him profoundly. All those who knew him personally and among them the participants in the previous Jerusalem Symposia will remember for ever the exceptional qualities of the scientist and the unusual human warmth of the man. With Ernst D. Bergmann the state of Israel lost one of the founders of its Science and one of its most brilliant and renowned representatives. The spirit which he suc ceeded to inoculate into his numerous disciples and pupils will, however, continue to perpetuate his name and his work. The Jerusalem Symposia will continue as a living testimony to his brilliant inspiration. Before dying, Professor Bergmann has prepared a few opening remarks for the 8th Jerusalem Symposium. They are reproduced here. BERNARD PULLMAN OPENING WORDS Prepared by the Late Professor Ernst David Bergmann It gives me great pleasure to welcome you all on behalf of the President and the Rector of the Hebrew University which is co-sponsoring this meeting, and of the President and Council of the Israel Academy of Sciences and Humanities which for the eighth time has put its premises at our disposal.
Del 10 - Jerusalem Symposia
Excited States in Organic Chemistry and Biochemistry
Proceedings of the Tenth Jerusalem Syposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, March 28/31, 1977
Inbunden, Engelska, 1977
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Proceedings of the 10th Jerusalem Symposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, March 28-31, 1977
Catalysis in Chemistry and Biochemistry Theory and Experiment
Proceedings of the Twelfth Jerusalem Symposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, April 2–4, 1979
Inbunden, Engelska, 1979
1 592 kr
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The 12th JerusaLem'Symposium was devoted to the exciting sub- ject of CataLysis in Chemistry and Biochemistry. As usuaL in these Sym- posia Theory and Experiment have been considered simuLtaneousLy in dis- cussions> invoLving renowned experts from many countries. We wish to thank aLL those who made this meeting possibLe and contributed to its success: the Baron de RothschiLd whose continuous generosity is at the source of these gatherings, the IsraeL Academy of Sciences and Humanities which offers us the cordiaL hospitaLity of its impressive and beautifuL buiLding and gardens and the Hebrew University of JerusaLem, faithfuL cosponsor of the Symposia. THE MACROMOLECULAR ELECTROSTATIC EFFECT IN BIOCHEMICAL ~EACTIVITY OF THE NUCLEIC ACIDS. BERNARD PULUIAN Institut de BioLogie Physico-Chimique, Laboratoire de Biochimie Theorique, aSSOCle au C. N. R. S. , 13, rue P. et M. Curie, Paris 75005, France. 1. INTRODUCTION The roLe of the macromoLecuLe and of its overaLL structure upon the reactivity of its reaction site(s) represents one of the fundamentaL probLems in the theory of cataLysis.The most impressive and most fre- quentLy considered exampLes occur in the fieLd of proteins where the probLem generaLLy consists of accounting for the enhancement of the reaction rate at the active site or at the coenzyme with respect to modeL systems, devoid of the macromoLecuLar superstructure. Different effects have been considered as possibLy responsibLe for the infLuence of the macromoLecuLe on such LocaLized-site reactions. I do not have the time to summarize or discuss them here.
Carcinogenesis: Fundamental Mechanisms and Environmental Effects
Proceedings of the Thirteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, April 28 – May 2, 1980
Inbunden, Engelska, 1980
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th The 13 Jerusalem Symposium on Quantum Chemistry and Bio- chemistry was dedicated to the memory of Ernst David Bergmann, one of the founders of this series of Symposia, at the occasion of the 5th anniversary of his death. The opening session was honored by the pre- sence of H. E. Yzhak Navon, President of the State of Israel and of Baron Edmond de Rothschild whose generous and constant support makes these Symposia possible. To both these distinguished guests we address the expression of our deep gratitude. Our thanks are also due to the Israel Academy of Sciences and Humanities, in particular to its President Professor Aryeh Dvoretzky and to the Hebrew University of Jerusalem for their hospita- lity and helpful association. I had the privilege this time to join efforts in the organi- zation of this Symposium with two distinguished American colleagues, Prof. P. O. P. Ts'o from Johns Hopkins University and Dr. Harry Gelboin from the National Institute for Cancer Research. I wish to thank them for their invaluable help and the two Institutions which they repre- sent for important financial support. th The subject of the 13 Jerusalem Symposium brings us back to that of the 1st Symposium held in 1967.The comparison of the two Proceedings enables us to evaluate the important developments which occurred in this field of research during the last 13 years.
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The 14th Jerusalem Symposium continued the tradition of the pleasant and exciting meetings which once a year gather distinguished scientists, the world's most renowned experts in specific fields of quantum chemistry and biochemistry, in the impressive surroundings of the Israel Academy of Sciences and Humanities. The subject discussed this year - Intermolecular forces - is one of the utmost interest for all molecular sciences. I wish to thank all those who made this meeting possible and contributed toits success: the Baron Edmond de Rothschild whose continuous generosity guarantees the perenniality of our venture, t~e Israel Academy of Sciences and in particular its Vice-President, Pr~fes- sor Yoshua Jortner for his devoted contribution to the organization and holding of this meeting, the high authorities of the Hebrew Uni- versity of Jerusalem and in particular the Rector Meshulamfor their constant support and Dr. Pierre Claverie for his efficient help in the preparation of the program. Mrs Abigail Hyam and Mrs MyriamYogev must be thanked for their contribution to the efficiency and success of the local arrangements. Bernard Pullman ix B.Pullman[ed.},IntermolecularForces,ix.Copyright (c)1981byD.ReidelPublishingCompany. INTERMOLECULAR FORCES: WHAT CAN BE LEARNED FROM AB INITIO CALCULATIONS? Advan der Avoird Institute of Theoretical Chemistry, University of Nijmegen, Toernooiveld, Nijmegen, The Netherlands. 1. INTRODUCTION Various experiments, suc~ as elastic or rotationally inelastic molecular beamscattering(1,2 and spectroscopic studies of so-cafled Van der Waals molecules(3,4), have been designed especially to provide information about the Van der Waals interactions between molecules.
Quantum Theory of Chemical Reactions
Chemisorption, Catalysis, Biochemical Reactions
Inbunden, Engelska, 1982
1 064 kr
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The third and last volume of this treatise IS concerned with important applications of the quantum~theory of chemical reactions to chemisorption, catalysis and biochemical reactions. The book begins with an important paper devoted to the theoretical background of heterogeneous catalysis. It is followed by two papers showing typical applications of wave mechanics to the analysis of chemisorption. Catalysed gas-solid reactions are chosen to illustrate gas, organic solid state reaction and some aspects of the mechanism of the FISCHER-TROPSCH synthesis are presented. The second part of the book is devoted to biochemical applications of quantum chemistry. Two papers are concerned with the quantum theory of enzyme activity. Two others present recent progress of quantum pharmacology. Finally an important contribution to the theory of intermolecular forces is made in the view of possible applications to biochemical problems. vii R. Daudel, A. Pullman, L. Salem, and A. Viellard reds.), Quantum Theory o/Chemical Reactions, Volume III, vii. Copyright (c) 1982 by D. Reidel Publishing Company. THEORETICAL BACKGROUND OF HETEROGENEOUS CATALYSIS J.E.Germain Laboratoire de Catalyse Appliquee et Cinetique Heterogene L.A. 231 du Centre National de la Recherche Scientifique Universite Claude Bernard Lyon I, E.S.C.I.L. 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex. Heterogeneous Catalysis is a surface Kinetic phenomenon by which a chemical reaction between molecules of a fluid phase is accelerated (activity) and oriented (selectivity) by contact with a solid phase (catalysts, without change of the solid.
Del 15 - Jerusalem Symposia
Intramolecular Dynamics
Proceedings of the Fifteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, March 29—April 1, 1982
Inbunden, Engelska, 1982
2 120 kr
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The Fifteenth Jerusalem Symposium reflected the high standards of the former international scientific meetings, which convene once a year at the Israel Academy of Sciences and Humanities in Jerusalem to discuss a specific topic in the broad area of quantum chemistry and biochemistry. The topic at this year's Jerusalem Symposium was intramo lecular dynamics, a subject of central interest for theoreticians, che mists and biologists. During the last two decades, there has been remarkable pro gress in our understanding of time dependent phenomena. The development and application of the modern techniques of quantum mechanics and sta tistical mechanics to excited-state dynamics and to chemical and biophy sical systems constitutes a fast developing current research area. The main theme of the Symposium was built around a conceptual framework for the elucidation of photophysical and photochemical phenomena in atoms, molecules, van der Waals complexes and clusters, condensed phases, poly mers and biological supermolecules. The interdisciplinary nature of this research field was deliberated by intensive and extensive interactions between scientists from different disciplines and between theory and experiment. This volume provides a record of the invited lectures at the Symposium.
New Horizons of Quantum Chemistry
Proceedings of the Fourth International Congress of Quantum Chemistry Held at Uppsala, Sweden, June 14–19, 1982
Inbunden, Engelska, 1982
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The Fourth International Congress in Quantum Chemistry under the auspices of the International Academy of Molecular Quantum Science in Menton, France was arranged at Uppsala University, Uppsala, Sweden, during the period June 14 - 19, 1982, in close collaboration with the University of Florida. The previous congresses were held in Menton 1973, New Orleans 1976, and Kyoto 1979, and the 1985 congress is tentatively planned to be held in the province of Quebec, Canada. The Congress consisted of six symposia in various areas of quantum chemistry, solid-state theory, and quantum bi ology. The meeting was attended by about 450 scientists from 45 different nations, and a total of more than 300 scientific papers were presented. Even the poster contri butions were given some plenary time. These proceedings contain the text of the plenary lec tures as well as the chairmen's introductions, whereas the contributed papers will be published in the International Journal of Quantum Chemistry, (John Wiley & Sons, New York) in the regular January - April 1983 issues.
Specificity in Biological Interactions
Proceedings of a Working Group at the Pontifical Academy of Sciences November 9–11, 1983
Inbunden, Engelska, 1984
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List of the Participants Xl Audience of the Holy Father XVll SCIENTIFIC PAPERS Introductory Remarks. Electrostatics and Specificity III Nucleic Acid Reactions (B. Pullman)...1 Theoretical Studies of Molecular Recognition and Ca- lysis by Enzymes (H. A. Scheraga) ...21 Molecular Dynamics of the DNA Double Helix (M. Levitt) 43 Simulating the Energetics and Dynamics of Enzymatic Reactions (A. Warshel) ...59 Structural Studies of DNA-Protein Interactions (B. W. Matthews) ...83 Protein-Nucleic Acid Interactions, Models and Reality (W. Saenger) ...*...99 Studying Enzyme-Substrate Interactions by Site-Directed Mutagenesis (A. R. Fersht and G. Winter) ...123 Sequence Dependence of DNA Conformation, Dynamics and Interactions in Solution (D. ]. Patel, S. A. Kozlowski, A. Pardi, R. Bhatt, S. Ikuta and K. Itakura) 133 Elements of Specific Recognition of Non-Intercalating - gands in the Interaction with DNA (C. Zimmer and G. Luck) ...175 VIlI PONTIFICIAE ACADEMIAE SCIENTIARUM SCRIPTA VARIA 55 Interactions of Transfer RNAs with their Biological Partners (J. P. Ebel, R. Giege, D. Moras and P. Remy) 207 Antibody Structure and Specificity (D. R. Davies) .249 Specificity of Ionophore-Cation Interaction (Yu. A. - chinnikov and V. T. Ivanov) " ...263 Theoretical Analysis of Factors Responsible for Specificity in Ionophore-Cation Interactions (A. Pullman) 303 FOREWORD " The specificity of biological interactions" was the subject of a Study Group that met at the Pontifical Academy of Sciences from Novem- ber 9-11, 1983. This theme is one of the most advanced fields in modern biology.
Interrelationship Among Aging, Cancer and Differentiation
Proceedings of the Eighteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, April 29–May 2, 1985
Inbunden, Engelska, 1985
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In 1980. a distinguished group of scientists gathered In Washington. D. C. for an International Symposium on Aging and Cancer. Among the recommendations of this Symposium was to convene a future meeting to discuss the molecular basis for Interrelationships between aging and cancer when the appropriate scientific knowledge was available. That same year. the 13th Jerusalem Symposium on Quantum Chemistry and Biochemistry entitled ·Carcl nogenesls : Fundamental Mechanisms and Environmental Effects·. was held. attended by some 50 International authorities In this field. At this meeting. It became clear that the fundamental process of carcinogenesis 15 Intimately associated with differentiation. which must also be mechanistically related to aging. It was therefore proposed that the next Jerusalem Symposium on Cancer could provide the appropriate forum for the study on the Interrelationship among cancer. aging and differentiation. The Impressive advances In our knowledge of the nature of the genome through molecular genetic and physical chemical techniques have now provided the opportunity to examine the Interrelationships between these complex biolo gical processes. Through the Isolation. cloning and rearranging of genes we are able to dissect and manipulate the genome In a fashion that was unanticipated only a decade ago. At the same time. the Increase In longevity and the Increased numbers of Individuals entering the last decades of life where cancer Incidences are highest raise the profound and practical question of whether aging and cancer are linked through common mechanisms.
Transport Through Membranes: Carriers, Channels and Pumps
Proceedings of the Twenty-First Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, May 16–19, 1988
Inbunden, Engelska, 1988
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The Symposium on "Transport through Membranes : Carriers. Channels and Pumps" Inaugurates the third decade of the Jerusalem Symposia. It enlarges substantially their conceptual scope by Introducing a new subject not treated there previously. In fact. It Is a topic particularly well suited for the general object of these International meetings which Is to reassemble In an exhaustive Interdisciplinary discussion chemists. physicists and biologists. theoreticians and experimentalists. The main theme of the Symposium was the presentation and evaluation of the most up-to-date data on the structural and dynamic aspects of transport through membranes within the three main pathways: through carriers. channels and pumps. This goal was fully achieved thanks to the participation of a most outstanding assembly of world's experts In the field. We wish to thank Madame Pullman. the real organizer and mainspring of this meeting. for having composed a most exciting and excellent program and for carrying It out successfully. As the twenty preceding ones this Symposium was held under the auspices of the Israel Academy of Sciences and Humanities and the Hebrew University of Jerusalem. It was sponsored by the Instltut de Blologle Physlco Chimique. Fondatlon Edmond de Rothschild of Paris. We wish to express once again our gratitude to the Baron Edmond de Rothschild for his constant and generous support which makes this continuous endeavour possible.
2 120 kr
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The 14th Jerusalem Symposium continued the tradition of the pleasant and exciting meetings which once a year gather distinguished scientists, the world's most renowned experts in specific fields of quantum chemistry and biochemistry, in the impressive surroundings of the Israel Academy of Sciences and Humanities. The subject discussed this year - Intermolecular forces - is one of the utmost interest for all molecular sciences. I wish to thank all those who made this meeting possible and contributed toits success: the Baron Edmond de Rothschild whose continuous generosity guarantees the perenniality of our venture, t~e Israel Academy of Sciences and in particular its Vice-President, Pr~fes- sor Yoshua Jortner for his devoted contribution to the organization and holding of this meeting, the high authorities of the Hebrew Uni- versity of Jerusalem and in particular the Rector Meshulamfor their constant support and Dr. Pierre Claverie for his efficient help in the preparation of the program. Mrs Abigail Hyam and Mrs MyriamYogev must be thanked for their contribution to the efficiency and success of the local arrangements. Bernard Pullman ix B.Pullman[ed.},IntermolecularForces,ix.Copyright (c)1981byD.ReidelPublishingCompany. INTERMOLECULAR FORCES: WHAT CAN BE LEARNED FROM AB INITIO CALCULATIONS? Advan der Avoird Institute of Theoretical Chemistry, University of Nijmegen, Toernooiveld, Nijmegen, The Netherlands. 1. INTRODUCTION Various experiments, suc~ as elastic or rotationally inelastic molecular beamscattering(1,2 and spectroscopic studies of so-cafled Van der Waals molecules(3,4), have been designed especially to provide information about the Van der Waals interactions between molecules.
Specificity in Biological Interactions
Proceedings of a Working Group at the Pontifical Academy of Sciences November 9–11, 1983
Häftad, Engelska, 2011
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List of the Participants Xl Audience of the Holy Father XVll SCIENTIFIC PAPERS Introductory Remarks. Electrostatics and Specificity III Nucleic Acid Reactions (B. Pullman)...1 Theoretical Studies of Molecular Recognition and Ca- lysis by Enzymes (H. A. Scheraga) ...21 Molecular Dynamics of the DNA Double Helix (M. Levitt) 43 Simulating the Energetics and Dynamics of Enzymatic Reactions (A. Warshel) ...59 Structural Studies of DNA-Protein Interactions (B. W. Matthews) ...83 Protein-Nucleic Acid Interactions, Models and Reality (W. Saenger) ...*...99 Studying Enzyme-Substrate Interactions by Site-Directed Mutagenesis (A. R. Fersht and G. Winter) ...123 Sequence Dependence of DNA Conformation, Dynamics and Interactions in Solution (D. ]. Patel, S. A. Kozlowski, A. Pardi, R. Bhatt, S. Ikuta and K. Itakura) 133 Elements of Specific Recognition of Non-Intercalating - gands in the Interaction with DNA (C. Zimmer and G. Luck) ...175 VIlI PONTIFICIAE ACADEMIAE SCIENTIARUM SCRIPTA VARIA 55 Interactions of Transfer RNAs with their Biological Partners (J. P. Ebel, R. Giege, D. Moras and P. Remy) 207 Antibody Structure and Specificity (D. R. Davies) .249 Specificity of Ionophore-Cation Interaction (Yu. A. - chinnikov and V. T. Ivanov) " ...263 Theoretical Analysis of Factors Responsible for Specificity in Ionophore-Cation Interactions (A. Pullman) 303 FOREWORD " The specificity of biological interactions" was the subject of a Study Group that met at the Pontifical Academy of Sciences from Novem- ber 9-11, 1983. This theme is one of the most advanced fields in modern biology.
Nucleic Acids: The Vectors of Life
Proceedings of the Sixteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, 2–5 May 1983
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th The 16 Jerusalem Symposium debated on one of the most im- portant subjects of modern molecular biology: the nucleic acids. It continued the tradition of gathering the most distinguished experts in the field. Placed under the auspices of the Isra~l Acade~y of Sciences and Humanities and the Hebrew University of Jerusalem it was sponsored by the Institut de Biologie Physico-Chimique (Fondation Edmond de Rothschild) of Paris and the Na~ional Foundation for Cancer Research of Bethesda, U. S. A. We wish to express our deep thanks to the Baron Edmond de Rothschild for his continuous generosity which guarantees the perenniality of these meetings and to the authorities of the National Foundation for Cancer Research, in particular Mrs Tamara Salisbury and Dr. Franklin Salisbury for having joined hands with us in this venture. We wish also to express our gra~itude to the adminis- trative staff of the Isra~l Academy and in particular to Mrs Avigail Hyam for the efficiency and excellency of the local arrangements. Bernard Pullman ,Joshua Jortner B. Pullman and J. Jortner (eds. ) , ,Vucleic Acids the Vectors of Life, /-/5. (c) 1983 by D. Reidel PuhlisliinK Company. BASE SEQUENCE. I-!E.LJY ":'TRIJCTIIR!: I\NI' INTRIN
Intramolecular Dynamics
Proceedings of the Fifteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, March 29—April 1, 1982
Häftad, Engelska, 2011
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The Fifteenth Jerusalem Symposium reflected the high standards of the former international scientific meetings, which convene once a year at the Israel Academy of Sciences and Humanities in Jerusalem to discuss a specific topic in the broad area of quantum chemistry and biochemistry. The topic at this year's Jerusalem Symposium was intramo lecular dynamics, a subject of central interest for theoreticians, che mists and biologists. During the last two decades, there has been remarkable pro gress in our understanding of time dependent phenomena. The development and application of the modern techniques of quantum mechanics and sta tistical mechanics to excited-state dynamics and to chemical and biophy sical systems constitutes a fast developing current research area. The main theme of the Symposium was built around a conceptual framework for the elucidation of photophysical and photochemical phenomena in atoms, molecules, van der Waals complexes and clusters, condensed phases, poly mers and biological supermolecules. The interdisciplinary nature of this research field was deliberated by intensive and extensive interactions between scientists from different disciplines and between theory and experiment. This volume provides a record of the invited lectures at the Symposium.
New Horizons of Quantum Chemistry
Proceedings of the Fourth International Congress of Quantum Chemistry Held at Uppsala, Sweden, June 14–19, 1982
Häftad, Engelska, 2011
2 120 kr
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The Fourth International Congress in Quantum Chemistry under the auspices of the International Academy of Molecular Quantum Science in Menton, France was arranged at Uppsala University, Uppsala, Sweden, during the period June 14 - 19, 1982, in close collaboration with the University of Florida. The previous congresses were held in Menton 1973, New Orleans 1976, and Kyoto 1979, and the 1985 congress is tentatively planned to be held in the province of Quebec, Canada. The Congress consisted of six symposia in various areas of quantum chemistry, solid-state theory, and quantum bi ology. The meeting was attended by about 450 scientists from 45 different nations, and a total of more than 300 scientific papers were presented. Even the poster contri butions were given some plenary time. These proceedings contain the text of the plenary lec tures as well as the chairmen's introductions, whereas the contributed papers will be published in the International Journal of Quantum Chemistry, (John Wiley & Sons, New York) in the regular January - April 1983 issues.
Horizons of Quantum Chemistry
Proceedings of the Third International Congress of Quantum Chemistry Held at Kyoto, Japan, October 29 – November 3, 1979
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Proceedings of the Third International Congress of Quantum Chemistry, held at Kyoto, Japan, October 29-November 3, 1979
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th The 13 Jerusalem Symposium on Quantum Chemistry and Bio- chemistry was dedicated to the memory of Ernst David Bergmann, one of the founders of this series of Symposia, at the occasion of the 5th anniversary of his death. The opening session was honored by the pre- sence of H. E. Yzhak Navon, President of the State of Israel and of Baron Edmond de Rothschild whose generous and constant support makes these Symposia possible. To both these distinguished guests we address the expression of our deep gratitude. Our thanks are also due to the Israel Academy of Sciences and Humanities, in particular to its President Professor Aryeh Dvoretzky and to the Hebrew University of Jerusalem for their hospita- lity and helpful association. I had the privilege this time to join efforts in the organi- zation of this Symposium with two distinguished American colleagues, Prof. P. O. P. Ts'o from Johns Hopkins University and Dr. Harry Gelboin from the National Institute for Cancer Research. I wish to thank them for their invaluable help and the two Institutions which they repre- sent for important financial support. th The subject of the 13 Jerusalem Symposium brings us back to that of the 1st Symposium held in 1967.The comparison of the two Proceedings enables us to evaluate the important developments which occurred in this field of research during the last 13 years.
Catalysis in Chemistry and Biochemistry Theory and Experiment
Proceedings of the Twelfth Jerusalem Symposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, April 2–4, 1979
Häftad, Engelska, 2011
1 592 kr
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The 12th JerusaLem'Symposium was devoted to the exciting sub- ject of CataLysis in Chemistry and Biochemistry. As usuaL in these Sym- posia Theory and Experiment have been considered simuLtaneousLy in dis- cussions> invoLving renowned experts from many countries. We wish to thank aLL those who made this meeting possibLe and contributed to its success: the Baron de RothschiLd whose continuous generosity is at the source of these gatherings, the IsraeL Academy of Sciences and Humanities which offers us the cordiaL hospitaLity of its impressive and beautifuL buiLding and gardens and the Hebrew University of JerusaLem, faithfuL cosponsor of the Symposia. THE MACROMOLECULAR ELECTROSTATIC EFFECT IN BIOCHEMICAL ~EACTIVITY OF THE NUCLEIC ACIDS. BERNARD PULUIAN Institut de BioLogie Physico-Chimique, Laboratoire de Biochimie Theorique, aSSOCle au C. N. R. S. , 13, rue P. et M. Curie, Paris 75005, France. 1. INTRODUCTION The roLe of the macromoLecuLe and of its overaLL structure upon the reactivity of its reaction site(s) represents one of the fundamentaL probLems in the theory of cataLysis.The most impressive and most fre- quentLy considered exampLes occur in the fieLd of proteins where the probLem generaLLy consists of accounting for the enhancement of the reaction rate at the active site or at the coenzyme with respect to modeL systems, devoid of the macromoLecuLar superstructure. Different effects have been considered as possibLy responsibLe for the infLuence of the macromoLecuLe on such LocaLized-site reactions. I do not have the time to summarize or discuss them here.
Del 1 - Quantum Theory Chemical Reactions
Quantum Theory of Chemical Reactions
1: Collision Theory, Reaction Path, Static Indices
Häftad, Engelska, 2011
535 kr
Skickas inom 10-15 vardagar
This treatise is devoted to an analysis of the present state of the quantum theory of chemical reactions. It will be divided into three volumes and will contain the contributions to an international seminar organized by the editors. The first one, is concerned with the fundamental problems which occur when studying a gas phase reaction or a reaction for which the solvent effect is not taken into account. The two first papers show how the collision theory can be used to predict the behaviour of interacting small molecules. For large molecules the complete calculations are not possible. We can only estimate the reaction path by calculating important areas of the potential surfaces. Four papers are concerned with this important pro cess. Furthermore, in one of these, the electronic reorganization which occurs along the reaction path is carefully analyzed. ~~o papers are devoted to the discussion of general rules as aromaticity rules, symmetry rules. The last two papers are concerned with the electrostatic molecular poten tial method which is the modern way of using static indices to establish relations between structure and chemical reactivity. Volume II will be devoted to a detailed analysis of the role of the solvent and volume III will present important applications as reaction mechanisms, photochemistry, catalysis, biochemical reactions and drug design. SOME RECENT DEVELOPMENTS IN THE MOLECULAR TREATMENT OF ATOM-ATOM COLLISIONS.
Nuclear Magnetic Resonance Spectroscopy in Molecular Biology
Proceedings of the Eleventh Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israäl, April 3–7, 1978
Häftad, Engelska, 2012
1 064 kr
Skickas inom 10-15 vardagar
The 11th Jeruaalem SympOlium continued the tradition of the pIe __ t and excitiDs meetiDp wbich 0DCe a year &ather dlJtingni,bed ICientiltl, the wodd's most renowned experts in a specific field of quantum chemistry and biochemistry. in the impressive IUrroundinp of the Israel Academy of Sciences and Humanities. We wiah to thank aU those who made this meetiDg pOllible and contributed to its IUcceSS: the Baron Edmond de Rothschild whOle continuous generosity suarantees the perenniality of our venture, the Israel Academy of Sciences and Humanities and in particu1ar its President Professor A. DvoIItIky, the Hebrew UDivenity of Jerusalem, and Professor David GiDsburg, for their devoted co11aboration. Mn. Abipil Hyam must be thanked for her decisive contribution to the efficiency and IUCcess of the local IIIIII1geDleJlts. Bernard Pulhnan v TABLE OF CONTENTS ~~e v D. G. Gorenstein / P-31 NMR of nucleic acids. Bond angle and torsional effects 1 H. lwahashi and Y. Kyogoku / NMR studies on dynamic properties of nucleic acid base pairs in nonaqueous solvents 17 M. M. Dhingra and R. H. Sarma / NMR studies and minimum energy confonnation calculations on the S'-tenninus of mammalian mRNA 31 H.-D. Ludemann and E. Westho/ / Solution confonnations of purine (JJ) nucleosides and analogs 41 P. Biichner, F. Blomberg, and H. Ruterjans / Nitrogen-IS nuclear magnetic resonance spectroscopy of lSN-Iabeled nucleotides. Investigations of Ribonuclease A -Nucleotide interactions S3 D. B.
Metal-Ligand Interactions in Organic Chemistry and Biochemistry
Part 1 Proceedings of the Ninth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, March 29th–April 2nd, 1976
Häftad, Engelska, 2011
535 kr
Skickas inom 10-15 vardagar
The 9th Jerusalem Symposium was dedicated to the memory of Professor Ernst David Bergmann. An imposing and deeply moving memorial session, chaired by Professor Ephraim Katzir, the President of the State of Is rael and a close friend of Professor Bergmann preceded the Symposium itself. During this session, Professor Bergmann's personality, scien tific achievements and contributions to the development of his country were described and praised, besides President Katzir, by Professor A. Dvoretzky, President of the Israel Academy of Sciences and Humanities, Professor D. Ginsburg, Dean of the Israel Institute of Technology in Haifa and the author of these lines. May I just quote short extracts from these speeches. President Katzir: "As we open this ninth in the series of symposia initiated in 1967, it is difficult for me as, I am sure, for many of Ernst Bergmann's friends, co-workers and students, to be here without him. He was not only a great scientist and a beloved teacher, he was one of the most important founders of science in this country. To him we owe many institutes and the establishment here of many branches of science. " Professor Dvoretzky: "Ernst Bergmann's greatness did not stem from one component overshadowing all the others. It was a multifaceted great ness consisting of the harmonious co~lescing of seemingly contrasting entities into a wonderful unity ••.
Excited States in Organic Chemistry and Biochemistry
Proceedings of the Tenth Jerusalem Syposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, March 28/31, 1977
Häftad, Engelska, 2011
2 120 kr
Skickas inom 10-15 vardagar
Proceedings of the 10th Jerusalem Symposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, March 28-31, 1977
New World of Quantum Chemistry
Proceedings of the Second International Congress of Quantum Chemistry Held at New Orleans, U.S.A., April 19–24, 1976
Häftad, Engelska, 2011
535 kr
Skickas inom 10-15 vardagar
Bernard PULLMAN During a long period organic chemistry was one of the pre ferred field of exploration for many quantum chemists. It still remains of major interest for a number of them, but altogether it seems as if the center of gravity of the quantum molecular theories became displaced towards different horizons. The dis placement seems in fact to occur in two directions. On the one hand, we see a prominent development of very refined computations for relatively small and frequently inorganic molecular systems with the view of a better and better reproduction of their obser vable properties and thus a better understanding of the fundamen tal principles governing the electronic structure of molecules. On the other hand, there is a no less prominent development of frequently also no less refined computations towards the study of molecular systems which because of their dimensions or the com plexity of the questions which they raise go beyond the usual treatment of organic molecules. These later studies involve in particular the penetration of quantum-mechanical concepts and me thods into the realm of biochemistry, biophysics, and pharma~olo gy. It so happens that because of the nature of the problems in volved this penetration has taken up a double aspect.