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8691-8700 of 14739 results in All results

Biosynthesis of Antibiotics

  • 1st Edition
  • November 11, 2012
  • J Snell
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 5 9 1 9 - 7
Biosynthesis of Antibiotics, Volume I focuses on research conducted on the properties, compositions, and chemical reactions of antibiotics. Composed of contributions of authors, the book discusses the microbial processes for the preparation of radioactive antibiotics. Areas of discussions include an introduction; microbial methods used in the preparation of radioactive antibiotics; and the presence of radioactive antibiotics prepared through microbial processes. The volume also focuses on the biosynthesis of penicillin and cephalosporins. Areas of interest include biosynthesis of penicillins; penicillin acylases; and cephalosporin C biosynthesis. The text also provides information on the biosynthesis of tetracycline antibiotics, streptomycin, and macrolide antibiotics. Numerical representations and schematic diagrams are presented to show the properties, compositions, and chemical reactions of antibiotics when exposed to varying conditions. This volume is a great source of data for workers, graduate students, and faculties of biological sciences in the conduct of academic and industrial research.

Metabolic Transport

  • 1st Edition
  • November 11, 2012
  • Lowell Hokin
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 4 2 9 7 - 7
Metabolic Pathways, Third Edition: Metabolic Transport, Volume VI investigates membrane transport and its role in cell physiology. The book describes the transport of solutes across membranes and of carbohydrates in bacterial cells, as well as other processes such as cellular transport of water, amino acid transport in microorganisms, proton transport, and calcium transport by the sarcoplasmic reticulum. Organized into 16 chapters, this volume begins with an overview of the kinetics of transport, emphasizing the monovalent carrier mechanism of facilitated diffusion and active transport involving monovalent carriers. The book then introduces the reader to the transport of various ligands by animal cells or microorganisms; transport by intracellular organelles; and the role of sodium pump in animal tissues in the regulation of cellular metabolism and function. The book also examines the transport of biogenic amines and some mechanisms involved in the control of transport. A few examples of the role of transport in subserving other cellular processes are presented. This book is a valuable source of information for workers in the transport field, along with biologists whose research interests overlap with the transport field.

Molecular Associations in Biology

  • 1st Edition
  • November 11, 2012
  • Bernard Pullman
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 4 5 0 2 - 2
Molecular Associations in Biology provides information pertinent to molecular biology. This book discusses several topics, including DNA replication, calculation of intermolecular energies, and thermodynamic parameters of polynucleotides. Organized into 35 chapters, this book starts with an overview of the specific association of the purine and pyrimidine bases in the nucleic acids, which provides the basis for storage, expression, and transmission of genetic information. This text then explores the secondary structures, interactions, and replication processes of nucleic acids. Other chapters consider the complex biological process of protein synthesis. This book discusses as well the methods of photodynamic action, which is significant in detecting energy transfer from dye to the biomolecule and identifying the free radicals produced. The final chapter deals with the macroscopic properties of molecular systems, which refer to such concepts as volume, mass, pressure, temperature, and pH. This book is a valuable resource for biophysicists, organic chemists, biochemists, and biologists.

Non-Glycolytic Pathways of Metabolism of Glucose

  • 1st Edition
  • November 11, 2012
  • Siegfried Hollmann
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 5 7 6 8 - 1
Non-Glycolytic Pathways of Metabolism of Glucose provides information pertinent to the metabolism of glucose. This book discusses the features of glycolysis and explores the other possibilities for glucose breakdown in mammalian metabolism. Organized into 13 chapters, this book starts with an overview of the regulatory factors in glucose breakdown, including the distribution of enzymes in various organs, the concentration of inorganic ions, as well as the composition of diets, hormones, and vitamins. This text then discusses the glucose dehydrogenation activity, which oxidizes glucose in the presence of methylene blue. Other chapters consider the capacity of mammalian organisms to degrade gluconic acid to a limited extent. This book discusses as well the levels of activity of dehydrogenases in mammalian tissues. The final chapter deals with the reduction methods and colorimetric procedures for the estimation of sugars and their derivatives. This book is a valuable resource for chemists, biologists, biochemists, and biophysicists.

Organizational Biosynthesis

  • 1st Edition
  • November 11, 2012
  • Henry Vogel
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 4 5 5 8 - 9
Organizational Biosynthesis focuses on the organized biosynthesis of the bacterial chromosome and examines the fundamental aspects of this process. This book discusses the basic particles of biology, which are explored in terms of organizational biosynthetic events at the molecular level. Organized into 10 parts encompassing 45 chapters, this book starts with an overview of how cellular components recognize, coordinate, and interact with each other during cellular division and genetic recombination. This text then examines the biochemical experiments with bacteria, which strongly suggest the participation of a particulate fraction. Other chapters consider the molecular basis for the physical continuity of the chromosome. This book discusses as well the result of the experiments for bacteria, which shows that DNA replication can proceed only after both template strands of the replicating molecule attach to the cell. The final chapter deals with protein biosynthesis system in mitochondria. This book is a valuable resource for biologists and biochemists.

Introduction to Biomolecular Energetics

  • 1st Edition
  • November 11, 2012
  • Irving Klotz
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 6 0 9 9 - 5
Introduction to Biomolecular Energetics Including Ligand-Receptor Interactions focuses on the concepts of energetics and their biological applications, including the study of ligand-receptor interactions. The book provides quantitative calculations and addresses topics that have become more prominent in the biochemical and related sciences in recent years, including the first and second laws of thermodynamics, the concept of entropy, free energy or chemical potential, group-transfer potential, physicochemical behavior, and enzyme kinetics. This volume is organized into 10 chapters, and it begins with an overview of the scope of energetics and two general approaches to the field: the classical or phenomenological approach and the statistical-molecular approach. The chapters that follow explore the concepts of energy and entropy in the context of the first and second laws of thermodynamics, along with the relationships between work, heat, energy and entropy as an index of exhaustion. The discussion then shifts to the free energy function and general procedures for computing standard free energies. The book also introduces the reader to the fundamental relationship between chemical potential (free energy) and concentration; high-energy bond and the concept of group-transfer potential; the use of thermodynamic methods in the analysis of physicochemical behavior; and statistical thermodynamics. The final chapter examines the number of ligands that are bound by the receptor entity, how strongly the ligands are held, and the molecular nature of the forces of ligand-receptor interaction. This book will be of interest to biologists and those who want to understand the principles of energetics governing biochemical changes.

Biological Applications of Liquid Scintillation Counting

  • 1st Edition
  • November 11, 2012
  • Yutaka Kobayashi
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 6 0 2 2 - 3
Biological Applications of Liquid Scintillation Counting, based on a series of lectures given at the Worcester Foundation for Experimental Biology, discusses the various biological applications of liquid scintillation counting and presents its principles in a manner that is simple, practical, and useful. This book explains the fundamentals of scintillators and the scintillation process, from sample preparation to testing and setting up a counter and the application of radiotracers. This text is organized into six chapters and begins with a historical overview of liquid scintillation counting, emphasizing two major events that stimulated its development: the discovery of organic compounds called ""scintillators"" and the introduction of photomultiplier tubes. This book considers the factors that affect the performance of photomultiplier tubes, including temperature and magnetic fields, and the use of liquid scintillation counting to measure radioactivity. The discussion then shifts to the factors that must be taken into account when choosing a method for preparing samples, including the physical and chemical characteristics of the sample, the isotope or isotopes of the sample, and the anticipated level of radioactivity. The following chapters look at the general considerations when installing a liquid scintillation counter, procedures for applying radiotracers, and practical aspects of sample preparation. This book is intended for physicists and experimental biologists.

Woody Plant Communities

  • 1st Edition
  • November 11, 2012
  • T.T. Kozlowski
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 4 4 9 1 - 9
Water Deficits and Plant Growth, Volume VI: Woody Plant Communities focuses on the water relations of woody plants in a community context. Organized into eight chapters, this book begins with a quantitative overview of sources of water available to woody plants. Separate chapters follow that discuss the water relations of coniferous, temperate hardwood, and tropical and subtropical forests and woodlands; apple and citrus orchards; closely related woody plants; and tea plantations. For each of these plant communities, emphasis is placed on hydrological cycles; water use and transpiration; absorption of water; and effects of environmental factors on soil and plant water balance. The effects of water deficits on physiological processes; vegetative and reproductive growth; yield of harvested products; drought resistance; and cultural practices affecting plant water balance and yield are also emphasized in this book. This volume will be useful to both researchers and those involved in the practice of growing woody plants for wood and fruit crops and for esthetic values.

Additional Woody Crop Plants V7

  • 1st Edition
  • November 11, 2012
  • T.T. Kozlowski
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 5 8 5 6 - 5
Water Deficits and Plant Growth, Volume VII: Additional Woody Crop Plants is an extension of Volume VI of this treatise and deals primarily with water relations of woody crop plants in a community context. Organized into five chapters, this book begins with the important problem of predicting effects of vegetation changes on transpiration and evaporation. Separate chapters follow that discuss water relations of cotton, small fruits, grapevines, and peach trees and orchards. For each of these plant communities, emphasis is placed on hydrological cycles; water use and transpiration; absorption of water; and effects of environmental factors on soil and plant water balance. The effects of water deficits on physiological processes; vegetative and reproductive growth; yield of harvested products; drought resistance; and cultural practices affecting plant water balance and yield are also emphasized in this book. This volume will be useful to both researchers and those involved in the practice of growing woody plants for crops or for esthetic values.

Seed Germination, Ontogeny, and Shoot Growth

  • 1st Edition
  • November 11, 2012
  • T.T. Kozlowski
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 4 9 4 7 - 1
Growth and Development of Trees, Volume I: Seed Germination, Ontogeny, and Shoot Growth is a part of a two-volume treatise, which characterizes important features of growth and development of trees and other woody plants during their life cycles. Organized into eight chapters, this book describes the important events in growth of the perennial woody plant. This volume highlights the significant changes that take place in vegetative and reproductive growth as woody plants progress from juvenility to adulthood and, finally, to a senescent state. This book also describes the effects of external and internal controls of vegetative and reproductive growth. Considerable attention is given to important spatial and temporal variations in growth. This book will be useful to academicians as well as to those involved in the practice of growing trees and other woody plants for fruit crops or wood, as well as for esthetic reasons.

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