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2 edition of Computing methods and the phase problem in X-ray crystal analysis found in the catalog.

Computing methods and the phase problem in X-ray crystal analysis

Conference on Computing Methods and the Phase Problem in X-ray Crystal Analysis (1960 University of Glasgow)

Computing methods and the phase problem in X-ray crystal analysis

report.

by Conference on Computing Methods and the Phase Problem in X-ray Crystal Analysis (1960 University of Glasgow)

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Published by Symposium Publications Division, Pergamon Press in New York .
Written in English

    Subjects:
  • Crystallography, Mathematical.

  • Edition Notes

    Includes bibliographies.

    StatementEdited by Ray Pepinsky, J.M. Robertson and J.C. Speakman.
    SeriesInternational tracts in computer science and technology and their application,, v. 4, International tracts in computer science and technology and their application ;, v. 4.
    ContributionsPepinsky, Ray, 1912- ed.
    Classifications
    LC ClassificationsQD911 .C65 1960c
    The Physical Object
    Paginationviii, 326 p.
    Number of Pages326
    ID Numbers
    Open LibraryOL5813263M
    LC Control Number60053576

    The volumes in the series, Methods in Molecular Biology, are conceived with the biochemist and molecular biologist in mind. The present book, Crystallographic Methods andProtocols, concentrates on the use of X-ray crystallography to solve the detailed three­ dimensional structuresofproteins, nucleic acids, andtheir : Humana Press. 2dsin q = n l. which is known as the Bragg's law, after W.L. Bragg, who first proposed it. In the equation, l is the wavelength of the x-ray, q the scattering angle, and n an integer representing the order of the diffraction peak. The Bragg's Law is one of most important laws used for interpreting x-ray diffraction data.

    Eagerly awaited, this second edition of a best-selling text comprehensively describes from a modern perspective the basics of x-ray physics as well as the completely new opportunities offered by synchrotron radiation. Written by internationally acclaimed authors, the style of the book is to develop the basic physical principles without obscuring them with excessive . X-ray diffraction is stressed rather than metallurgy. The book is divided into three main parts —Fundamentals; experimental methods; and applications. The subject of crystal structure is approached through, and, based on, the concept of the point lattice (Bravais lattice), because the point lattice of a substance is so closely related to its Format: On-line Supplement.

    As stated above, the most difficult problem for ab initio determination of protein crystal structures is the so-called “phase problem”, i.e. to determine the phase angle of each measured reflection. This problem is easier in small molecule crystallography than PX since the small molecule crystals normally diffract to much higher resolution Cited by: Crystallographic image processing (CIP) is traditionally understood as being a set of key steps in the determination of the atomic structure of crystalline matter from high-resolution electron microscopy images obtained in a transmission electron microscope that is run in the parallel illumination term was created in the research group of Sven Hovmöller at .


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Computing methods and the phase problem in X-ray crystal analysis by Conference on Computing Methods and the Phase Problem in X-ray Crystal Analysis (1960 University of Glasgow) Download PDF EPUB FB2

Computing methods and the phase problem in X-ray crystal analysis. State College, Pa., X-ray Crystal Analysis Laboratory, Dept.

of Physics, Pennsylvania State College, (OCoLC) Online version: Pepinsky, Ray, Computing methods and the phase problem in X-ray crystal analysis.

Conference on Computing Methods and the Phase Problem in X-ray Crystal Analysis ( University of Glasgow). Computing methods and the phase problem in X-ray crystal analysis.

New York, Symposium Publications Division, Pergamon Press, (OCoLC) Material Type: Conference publication: Document Type: Book: All Authors. CHAPTER 7 Methods and Problems of Crystal Structure Analysis* Various Forms of the Problem a.

Description of the structure. In the preceding chapter we have paid little attention to the actual configuration of a crystal. In this chapter we shall consider direct (phase probability) methods of solving the phase J. M., and Speakman, J. (Editors), Computing Methods and the Phase Problem in X-Ray Crystal Analysis, Oxford, Pergamon Press ().

Google Scholar. Rollett, J. (Editor), Computing Methods in Crystallography, Oxford, Pergamon Press (). Google Author: M. Ladd, R. Palmer.

Abstract. In this chapter, we consider direct methods, also known as phase probability methods, of solving the phase problem, together with Patterson search techniques, least-squares refinement, and other important procedures that are usually involved in the overall investigation of crystal and molecular structure are also : M.

Ladd, R. Palmer. Okaya and R. Pepinsky, In Computing Methods and the Phase Problem in X-Ray Crystal Analysis, p. Pepinsky and Speakman (eds.), Pergamon Press, London ().

Read the latest articles of Talanta atElsevier’s leading platform of peer-reviewed scholarly literature. book reviews. Acta Cryst. 15, doi: Computing methods and the Phase Problem in X-ray Analysis edited by R.

Pepinsky, J. Robertson and J. Speakman. Read article. IUCr is a scientific union serving the interests of crystallographers and other scientists employing crystallographic methods. Conference on Computing Methods and the Phase Problem in X-ray Crystal Analysis Glasgow.

August A small conference under the above title is being planned by Prof. Ray Pepinsky and Prof. Monteath Robertson to be held in Glasgow, Scotland, during the week before. The crystal and molecular structure of α‐thiophene‐ and α‐selenophene‐carboxylic acids. book reviews.

Free Access. X‐ray metallography by A. Taylor PDF PDF Request permissions; Free Access. Computing methods and the Phase Problem in X‐ray Analysis edited by R.

Pepinsky, J. Robertson and J. Speakman G. Von Eller. X-ray powder diffraction is an ideal technique for the quantitative analysis of a multiphase sample. The intensities of diffraction lines of a phase in a multiphase sample are proportional to the phase fraction and the quantitative analysis can be obtained if the correction for the absorption of X-rays in the sample is performed.

Simple procedures of quantitative X-ray diffraction phase Author: Stanko Popović. Crystallography Made Crystal Clear makes crystallography accessible to readers who have no prior knowledge of the field or its mathematical basis. This is the most comprehensive and concise reference for beginning Macromolecular crystallographers, written by a.

Crystals, an international, peer-reviewed Open Access journal. Dear Colleagues, X-ray diffraction has been widely regarded as the most powerful technique for the structural study of crystalline samples during the last century, as it provides detailed information about the atomic structure of ordered solids regardless of the chemical nature of the sample.

Computing Methods and Phase Problem in X-Ray Crystal Analysis with M = W has been determined with single-crystal X-ray diffraction analysis. The. X-ray crystallography (XRC) is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions.

By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the. Modern crystallographic methods originate from the synergy of two main research streams, the small-molecule and the macro-molecular streams.

The first stream was able to definitively solve the phase problem for molecules up to atoms in the asymmetric unit. The achievements obtained by the macromolecular stream are also impressive. A huge number of protein. Cruickshank, Computing Methods and the Phase Problem in X-Ray Crystal Analysis, Pergamon Press, Glasgow ().

Tarnopol'skii, Rentgen Automated System of. The first meeting was held at The Pennsylvania State College, Aprill, and was a memorable occasion. Nearly a dozen distinguished crystallographers from Europe were present at a special conference called by Prof.

Pepinsky on Computing Methods and the Phase Problem. Find helpful customer reviews and review ratings for Structure Determination by X-Ray Crystallography at Read honest and unbiased product reviews from our users/5. The second part discusses both traditional and novel methods of solving the ``phase'' problem, the principal difficulty in x-ray structure determination.

The third part considers how to extract the most information from the data and how to evaluate its by:. Bragg’s description of diffraction by a crystal, although not physical, is useful to explain X-ray diffraction in an intuitive way and to provide a mathematical method for computing diffraction directions.

In Bragg’s representation, diffraction is described as the reflection of an X-ray beam by crystallographic planes defined by indices hkl.A complete account of the theory of the diffraction of x-rays by crystals with particular reference to the processes of determining the structures of protein molecules, this book is aimed primarily at structural biologists and biochemists but will also be valuable to those entering the field with a background in physical sciences or chemistry.

David Sayre, who died on 23 February, was a pioneer in crystallography and diffraction imaging, a visionary in X-ray microscopy and an architect of modern by: 4.