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Author : Carmelo Giacovazzo
Publisher :
ISBN 13 :
Total Pages : 458 pages
Book Rating : 4.:/5 (37 download)
Download or read book Direct Methods in Crystallography written by Carmelo Giacovazzo and published by . This book was released on 1980 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. F. C. Ladd
Publisher : Springer Science & Business Media
ISBN 13 : 1461329795
Total Pages : 432 pages
Book Rating : 4.4/5 (613 download)
Download or read book Theory and Practice of Direct Methods in Crystallography written by M. F. C. Ladd and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct methods of crystal structure determination are usually associated with techniques in which phases for a set of structure factors are determined from the corresponding experimental amplitudes by probabilistic calcula tions. It is thus implied that such ab initio phase calculations do not require a knowledge of atomic positions, and this basis distinguishes direct methods from other techniques for structure determination. An acceptably wider interpretation of the term direct methods leads to other important applica tions involving, inter alia, the use of heavy atoms, resolution-limited phase data for large molecules, rotation functions, and Fourier series. These topics are discussed in the later chapters of this book. Although some earlier theoretical investigations were made by Harker and Kaspar, direct methods may be considered to have begun around the year 1950. Important landmarks in the development of the subject include the book by Hauptmann and Karle, The Centrosymmetric Crystal (1953), the definitive paper by Karle and Karle in Acta Crystallographica (1966), and the recent (1978) sophisticated program package MULTAN 78 produced mainly by Germain, Main, and Woolfson. Woolfson's book, Direct Methods in Crystallography, was published in 1961, but because of the rapid progress in direct methods, much of it soon became outmoded. It is interesting to note that direct methods nearly came into being many years earlier. Certainly the E2 relationship was used implicitly by Lonsdale in 1928 in determining the crystal structure of hexamethylbenzene.
Author : 3Island Press
Publisher :
ISBN 13 : 9781461329800
Total Pages : 436 pages
Book Rating : 4.3/5 (298 download)
Download or read book Theory and Practice of Direct Methods in Crystallography written by 3Island Press and published by . This book was released on 1980-01-31 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hendrik Schenk
Publisher :
ISBN 13 : 9780906449714
Total Pages : 22 pages
Book Rating : 4.4/5 (497 download)
Download or read book An Introduction to Direct Methods written by Hendrik Schenk and published by . This book was released on 1984 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H Schenk
Publisher : World Scientific
ISBN 13 : 9813201770
Total Pages : 441 pages
Book Rating : 4.8/5 (132 download)
Download or read book Direct Methods, Macromolecular Crystallography And Crystallographic Statistics - Proceedings Of Winter School written by H Schenk and published by World Scientific. This book was released on 1987-02-01 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vasopressin is a hormone which has an increasingly important profile. Not only does it play a physiologically significant role in renal water regulation but it also has other renal actions and plays a role in overall cardiovascular control. Even more interesting is the recent growing interest in its potential effects on the brain, notably its influence on specific behaviours.This monograph about the polypeptide vasopressin covers all aspects relating to the production, control of release, and actions of this molecule within the body, including its roles as a hormone and as a central neurotransmitter. A consideration of the evolution of the molecule across the species and a brief historical perspective are also included. Clinical conditions associated with hypo- and hyper-production states are considered together with aspects of treatment, in addition to other clinical correlates./a
Author : M. M. Woolfson
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (31 download)
Download or read book Direct Methods in Crystallography written by M. M. Woolfson and published by . This book was released on 1961 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hubert Phillips
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (959 download)
Download or read book Direct Methods in Crystallography written by Hubert Phillips and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. M. Woolfson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (883 download)
Download or read book Direct Methods in Crystallography written by M. M. Woolfson and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henk Schenk
Publisher : Springer
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.X/5 (2 download)
Download or read book Direct Methods of Solving Crystal Structures written by Henk Schenk and published by Springer. This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 18th course of the International School of Crystallography, held April 1990, in Erice, Italy. Annotation copyrighted by Book News, Inc., Portland, OR
Author : Carmelo Giacovazzo
Publisher : Oxford University Press on Demand
ISBN 13 : 9780198500728
Total Pages : 767 pages
Book Rating : 4.5/5 (7 download)
Download or read book Direct Phasing in Crystallography written by Carmelo Giacovazzo and published by Oxford University Press on Demand. This book was released on 1998 with total page 767 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct methods are, at present, applied to a large variety of cases: X-ray, neutron or electron data; single crystal and powder data; small molecules and macromolecules. While direct methods solved in practice the phase problem for small molecules, their application to macromolecules is recentand still undergoing strong development. The fundamentals of the methods are described: in particular it is shown how the methods can be optimized for powder, neutron or electron data, and how they can be integrated with isomorphous replacement, molecular replacement and anomalous dispersiontechniques. Maximum Entropy methods are also described and discussed. Sets of test structures are used to verify, throughout the various chapters, the mathematical techniques there described and to provide practical examples of applications. This book will appeal to a wide variety of readers -offering both a comprehensive description of direct methods in crystallography and an invaluable reference tool. The first three chapters can be considered as an introduction to the field, with sufficient material to constitute a university course and for allowing the expert use of most directmethods programs. Subsequent chapters are aimed at graduate students and working crystallographers. Basic results are described and discussed in the main body of the text, while the appendices compliment these with in depth mathematical details. The quoted literature is extremely wide and theinterested reader can find suggestions for future work and further reading throughout the book.
Author : Michael Mark Woolfson
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (18 download)
Download or read book Direct Methods in Crystallography, By M.M. Woolfson written by Michael Mark Woolfson and published by . This book was released on 1963 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arlene Donald
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (181 download)
Download or read book New Techniques for Direct Methods in X-ray Crystallography written by Arlene Donald and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Allan Nisbet Henderson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (181 download)
Download or read book New Techniques for Direct Methods in X-ray Crystallography written by Allan Nisbet Henderson and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anthony Louis Spek
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (18 download)
Download or read book Some Aspects of the Application of Direct Methods in X-ray Crystallography written by Anthony Louis Spek and published by . This book was released on 1975 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Adam Charles Ralph
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (599 download)
Download or read book Physical and Direct Methods in Crystallography written by Adam Charles Ralph and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen Robert Brown
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (39 download)
Download or read book New Approaches to Direct Methods in X-ray Crystallography written by Stephen Robert Brown and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Fortier
Publisher : Springer Science & Business Media
ISBN 13 : 9401590931
Total Pages : 505 pages
Book Rating : 4.4/5 (15 download)
Download or read book Direct Methods for Solving Macromolecular Structures written by S. Fortier and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book of the proceedings of the 1997 NATO Advanced Study Institute (ASI) on Direct Methods for Solving Macromolecular Structures was assembled from the lecturers' contributions and represents a comprehensive and in-depth overview of crystallographic structure determination methods for macromolecules. While having a focus based on the direct methods, the Institute adopted an inclusive and broad perspective. Thus, both direct and experimental phasing techniques are presented in this book, highlighting their complementarities and synergies. As weil, methodologies spanning the full crystallographic image reconstruction process - from low resolution envelope definition to high resolution atomic refinement- are discussed. The first part of the book introduces the array of tools currently used in structure determination, whether originating from a mathematical, computational or experimental framework. This section of the book displays the variety and ingenuity of old and new phasing approaches developed to solve increasingly complex structures. Some of the contributions focus on recent developments and/or implementations that have given older approaches a new life. A case in point is the re-implementation of Buerger's superposition approach, which is now solving protein structures. Another beautiful example is found in the introduction to the traditional multiple isomorphous replacement approach where new techniques, such as site-directed mutagenesis and the use of inert gases in the preparation of heavy atom derivatives, are described. Equally impressive are the presentations of newer approaches, which take advantage of advances on the experimental front (e. g.
