Earth Sciences

Accurate Molecular Structures: Their Determination and Importance (Inter

Modern experimental and computational techniques are capable of determining bond lengths and angles with precisions of a few thousandths of an angstrom and a few tenths of a degree. Such precisions are meaningful only if they are coupled with rigorous error analysis and careful evaluation of the physical meaning of the parameters. This book demonstrates the meaning and applicability of accurate structures and their variations following a rigorous exposure of the demands and caveats in their determination. It establishes guidelines for accuracy requirements in answering broadly varying questions in current chemical research. The 21 chapters by internationally recognized authors discuss the following topics: potential energy surfaces; microwave, infrared, and liquid crystal NMR spectroscopies; gas phase electron diffraction; X-ray and neutron crystallography; electron density studies; ab initio molecular orbital methods and molecular mechanics calculations; the use of structural databases; applications to organic inorganic and organometallic chemistry; studies of reaction pathways; effects of substitution and crystal environment on molecular structure.

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Classical Marble: Geochemistry, Technology, Trade (Nato Science Series E

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Structure Reports for 1984, Volume 51B: Organic Compounds (Structure Rep

The Reports are published annually and are divided into three main sections. A: (I) metals and (II) inorganic compounds; and B: organic compounds (including organo-metallic compounds). The format of information in individual reports is: names, formulae, papers reported, unit cell and space group data, details of analysis, atomic positions, inter-atomic distances and angles, description and discussion of the structure (with diagrams), and additional references. The subject index is based on the names of the substances as given in the headings of the individual reports. Each volume has also an author index. In addition, cumulative indexes are published as separate volumes. The Reports make the search through hundreds of journals unnecessary, as each volume gives the essence of one year's worldwide literature on crystal structure determinations. Thus, the series forms an essential bank of information.

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Structure Reports for 1965, Volume 30B: Organic Section (Structure Repor

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Phase Transitions in Liquid Crystals (NATO Science Series B: Physics)

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Working Memory and Human Cognition (Counterpoints)

This new volume in the Counterpoints series compares and contrasts different conceptions of working memory, generally recognized as the human cognitive system responsible for temporary storage of information. The book includes proponents of several different views. Robert Logie discusses the theoretical and empirical utility of separating working memory into an articulatory loop, a phonological store, and a visuo-spatial sketchpad into visual and spatial subsystems. Patricia Carpenter provides evidence for a process view of working memory, arguing that both task-specific processing and general processing capabilities can account for the full range of working memory phenomena. She focuses on findings from reading comprehension and memory tasks suggesting that working memory is used to represent the set of skills and strategies necessary for complex tasks, while retaining residual capacity for use as a storage buffer. Lynn Hasher argues in favor of the new inhibitory model, with evidence drawn from the literature on aging and pathology that demonstrates parallels between memory disorders and normal memory functioning. Randall Engle addresses the issue of whether working memory resources are required for retrieval of information or whether that task is relatively automatic. Engle's empirical studies, in turn, bear directly on the positions of Carpenter, Hasher, and Logie. As interest in working memory is increasing at a rapid pace, an open discussion of the central issues involved is both useful and timely. This work serves this purpose for a wide audience of cognitive psychologists and their students.

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Novel Application of Anomalous (Resonance) X-ray Scattering for structur

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Parametric X-Ray Radiation in Crystals: Theory, Experiment and Applicati

This systematic and comprehensive monograph is devoted to parametric X-ray radiation (PXR). This radiation is generated by the motion of electrons inside a crystal, whereby the emitted photons are diffracted by the crystal and the radiation intensity critically depends on the parameters of the crystal structure. Nowadays PXR is the subject of numerous theoretical and experimental studies throughout the world. The first part of the book is a theoretical treatment of PXR, which includes a new approach to describe the radiation process in crystals. The second part is a survey of PXR experimental results and the possible applications of PXR as a tool for crystal structure analysis and a source of tunable X-ray radiation.

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Electronic and Vibrational Properties of Point Defects in Ionic Crystals

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Selected Systems from Fe-N-V to Fe-Ti-Zr (Landolt-Börnstein: Numerical

Volume 11 of group IV presents phase diagrams, crystallographic and thermodynamic data of ternary alloy systems. The subvolume D deals with iron systems, with part 5 considering selected systems from Fe-N-V to Fe-Ti-Zr. At ambient pressure the equilibria of each individual ternary system are discussed as functions of temperature yielding spatial diagrams whose sections and projections are displayed. The phase equilibria are described in terms of liquidus, solidus and solvus projections, isothermal, vertical and quasibinary sections. Data on invariant equilibria are generally given in the form of tables and reaction schemes. The volume forms a comprehensive review and rigorous systematization of the presently available data. For each system the often conflicting literature and contradictory information has been thoroughly evaluated by a team of experts, MSIT, and can thus be presented in a standard format. Back to the year 1900 the literature has been reviewed, implying possible reinterpretations from today's state of knowledge, and incorporated in the volume. The tables and diagrams are preceded by descriptive commenting texts.

Price : $7,819.00

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