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  • The Hormonal Control of Gene Transcription

    • 1st Edition
    • Volume 6
    • P. Cohen + 1 more
    • English
    Over the past few years there have been considerable advances in our understanding of cellular control mechanisms, and current research is now linking areas of biology that were previously thought of as being quite separate. Molecular Aspects of Cellular Regulation is a series of occasional books on multidisciplinary topics which illustrate general principles of cellular regulation. Previous volumes described Recently Discovered Systems of Enzyme Regulation by Reversible Phosphorylation (Volumes 1 and 3), The Molecular Actions of Toxins and Viruses (Volume 2), Molecular Mechanisms of Transmembrane Signalling (Volume 4) and Calmodulin (Volume 5). This sixth volume, The Hormonal Control of Gene Transcription, has now been published to highlight recent important advances in our understanding of this topic which is linking two of the most active areas of current biochemical and molecular biological research (hormone action and gene transcription) and leading to the emergence of unifying concepts.

  • Structure and Functioning of Seminatural Meadows

    • 1st Edition
    • Volume 27
    • M. Rychnovská
    • English
    Twelve years' analysis of natural grassland and experimentally managed meadows have produced this unique set of data on the structures and physiological functions of primary producers, consumers and decomposers. Obtained during the 1973-1985 Ecosystem Study on Highland Meadows in Czechoslovakia, such original information is rare in scientific literature. The aim of the study was to define the functioning of these grasslands and their changes under different impact of man, and to examine the ecological function of those ecosystems in the intensively managed catchment area. Hence, this book contains deep analyses of soil microorganisms, their functions in decomposition and soil forming processes - leading to the evaluation of the whole carbon cycle - as well as dealing with nitrogen pathways in the experimental plots - resulting in precise determination of the full nitrogen cycle. Procedures used in practical agriculture, such as cutting, fertilization and renovation, have also been applied, producing evaluations from both ecological and economical view-points.The book's integrated ecosystem approach to grasslands, its deep professional analyses in each section, along with the synthesis on each particular level and across all levels, renders it an invaluable, informative text, comprising extensive figures and tables and a substantial bibliography of world-wide sources.

  • Dispersing Powders in Liquids

    • 1st Edition
    • Volume 7
    • R.D. Nelson
    • English
    This book provides powder technologists with laboratory procedures for selecting dispersing agents and preparing stable dispersions that can then be used in particle size characterization instruments. Its broader goal is to introduce industrial chemists and engineers to the phenomena, terminology, physical principles, and chemical considerations involved in preparing and handling dispersions on a commercial scale. The book introduces novices to: - industrial problems due to improper degree of dispersion; - the nomenclature used in describing particles; - the basic physical phenomena, equations, and chemistry involved in particle interactions; - the analytical techniques used for evaluating solid-liquid interfaces - textbooks, courses, societies, and vendors that can provide an advanced understanding of dispersion phenomena. The book provides resources for more experienced technologists by: - discussing characteristics and applications of the various chemical classes of surfactants; - providing procedures for selecting and optimizing a dispersant for a specific solid-liquid system and end-use constraints; - naming typical commercial surfactants and listing the addresses and telephone numbers of their manufacturers; - illustrating the many physical and chemical equilibria that must be considered in modelling a dispersion and guiding the reader to the sources of both data and advanced theoretical treatments required to implement such models. The author has for several years been a consultant in the field of slurry technology, obtaining information, materials, equipment, and expert advice required to solve slurry problems. He also teaches slurry technology and powder dispersion courses to students who are either engineers recently graduated from college or managers recently transferred to plants that handle slurries. His expertise gives the book a wide appeal: as virtually every manufacturing process involves dispersions of powders in liquids, it is of interest to chemists and chemical engineers in industry; the concise definitions, descriptions and examples make it an ideal reference text for teachers and students.

  • Gas, Dust and Hybrid Explosions

    • 1st Edition
    • W.E. Baker + 1 more
    • English
    Damaging accidental explosions are a continuous threat to industry. Categories for such explosions include combustible dust explosions; reactive gas explosions, both confined and unconfined; hybrid explosions involving both gases and dusts; bursts of pressure vessels and piping; and liquid propellant explosions. This book evaluates the physical processes and resulting blast effects for these types of explosions. Special attention is given to reactive gas explosions, both confined and unconfined. This latter class of explosion has occurred all too frequently in refineries and petrochemical complexes, and is also one of the most difficult to predict and evaluate. Much recent work on this topic is reviewed and summarized. This is the only publication of its kind, to date, that offers such a thorough coverage of these types of industrial explosions. [p]Each class of explosion source is reviewed separately, first discussing fundamentals, then presenting methods of analysis and testing, and finally giving curves or equations to predict effects of the particular class of explosion. An extensive bibliography is included together with tables of pertinent properties of explosive materials. The text also includes many figures, equations, tables and a keyword index. The book is intended for researchers in the field of characterizing and mitigating industrial explosions. It will also be of interest to engineers, scientists, and insurers involved in processes.

  • Selected Topics in the History of Biochemistry. Personal Recollections. Part III

    • 1st Edition
    • Volume 37
    • G. Semenza + 1 more
    • English
    As in Volumes 35 and 36, the chapters in this new volume complement, with personal recollections, the History of Biochemistry that was covered in the Comprehensive Biochemistry Series, Volumes 30-33 by M. Florkin and Volume 34A by P. Laszlo. The biographical and autobiographical chapters will convey to the reader a lively, albeit at times subjective, view of the scientific and social environment in which the authors have worked, resulting in new concepts and theories on the biological sciences.

  • Nitrogen Management and Ground Water Protection

    • 1st Edition
    • Volume 21
    • Ronald F Follett
    • English
    Supplying crops with adequate nitrogen is vital to ensuring food supplies. Once nitrogen is added to the soil, it is subject to chemical transformations of the nitrogen-cycle including transformation to nitrate. Excessive amounts of accumulated nitrate may then leach out of the soil and could potentially enter and contaminate drinking water supplies. The purpose of this book is to examine the subject of nitrogen management and ground water protection.The issue of maintaining ground water quality is addressed primarily from an agronomic point of view. Topics covered include: health and economic aspects of nitrate in drinking water; nitrate sources; ground water nitrate in the USA and other developed countries; transport, leaching and accounting for nitrogen; soil, nitrogen, crop and water management; and nitrate in aquifer systems. The book contains a keyword index and is organized into thirteen chapters, each with appropriate references, tables and figures. Chapter authors are among the leading experts on the subject of nitrate and ground water quality.Readers to whom the book is directed include soil scientists and agronomists, agricultural engineers (irrigation and drainage), environmental scientists, agricultural policy makers, and hydrologists.

  • Theory of Electric Polarization

    Dielectrics in Static Fields
    • 2nd Edition
    • Bozzano G Luisa
    • English
    Theory of Electric Polarization: Dielectrics in Static Fields: Second Edition concerns the theory of the static behavior of dielectrics. The book reviews electric moment, electric dipoles, some concepts of, and problems of electrostatics. One problem concerns the phenomena of a conducting sphere in a homogeneous external field which was resolved using Laplace's equation. The text also discusses the work required to assemble a charge distribution, the energy of a dialectric or an induced dipole in an external field, and the electrostatic interaction of two particles. The book explores the reaction field of a polarizable or non-polarizable point dipole, the reaction field in an ellipsoidal cavity, the reaction field of an eccentric dipole in a spherical cavity, and the contribution of the permanent dipoles to the cohesion energy of a liquid. The text tackles the Onsager equation, the Debye equation, a correction to the Clausius-Mossotti equation, and the Kirkwood correlation factor. The book explains normal and anomalous saturation, electrostriction, as well as the non-linear effect due to the anisotropy of polarizability and hyperpolarizabilitie... The text can prove beneficial for researchers, investigators or scientists whose work involve organic chemistry, analytical chemistry, physical chemistry, and inorganic chemistry.

  • Handbook of Mutagenicity Test Procedures

    • 2nd Edition
    • B.J. Kilbey + 3 more
    • English
    The compilation of this book was prompted by the necessity of a bench volume which could provide the necessary background information on materials, experimental design, pitfalls and dificulties, in order to perform a particular test in an acceptable way with a minimal need for additional expert help. This Second Edition updates this information, providing: - a comprehensive bench guide - methods known to be reliable - a broad spectrum of approaches - tips to avoid pitfalls when using unfamiliar techniques - data from population records - safety aspects of mutagens and carcinogens - basic statistical concepts for experiment design This `on the bench' methodological text provides the necessary information for most of the common assays for genetic damage in use. The book includes methods which have been sufficiently used and tested to make their use reliable, but also presents methods which are not widely used at present, but which might prove most useful in screening for mutagenic effects.

  • Before Water Management Measures

    • 1st Edition
    • Volume 15A
    • English
    The ultimate motivation for the study which is the subject of this book was the need to draw conclusions on the impact of man's activity on natural ecosystems. The results characterize the situation of the south-Moravian floodplain forest in the period of fading uncontrolled floods before the extensive technical measures successively changed the moisture regime by eliminating inundation and lowering the level of underground water. This publication is unique in Czechoslovakia as it records the ecological situation in the floodplain forest prior to the major and irreversible changes. The study also documents the exceptional role played by the Central-European floodplain forest in maintaining the gene pool and structure of the one thousand or so species in flora and fauna of an agricultural region.

  • Comminution 1994

    • 1st Edition
    • K.S.E. Forssberg + 1 more
    • English
    This publication is the result of the 8th European Conference on Comminution. Containing many significant contributions concerning the topic of Comminution, the book gives the reader a vital insight into the subject.

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