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Books > Science & Mathematics > Biology, life sciences > Biochemistry > General
This book presents the versatile and pivotal role of electron spin interactions in nature. It provides the background, methodologies and tools for basic areas related to spin interactions, such as spin chemistry and biology, electron transfer, light energy conversion, photochemistry, radical reactions, magneto-chemistry and magneto-biology. The book also includes an overview of designing advanced magnetic materials, optical and spintronic devices and photo catalysts. This monograph will be of interest to scientists and graduate students working in the areas related to spin interactions physics, biophysics, chemistry and chemical engineering.
Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume.
In the approach to the analysis of disease, including, of course, cancer, two major thrusts may be distinguished. These may be referred to, in shorthand, as agents and processes: the causative agents (chemical, microbial, physical, environmental, and psychosocial) and the organismic processes, initiated and furthered by the agents, culminating in observable pathology (at the macromolecular, cytological, histological, organ function, locomotor, and behavioral levels). The past 25 years, since the appearance of the first volume of the predecessor series (1) authored by the Editors of this present volume, have seen an impressive number of studies on chemicals (and other agents) as etiologic factors in the induction of cancer. The major emphasis has been on the discovery of many chemical carcinogens of widely different structures, their metabolism by various tissues and cells, and, in turn, their molecular-biochemical effects on the cells. This rapidly expanded body of information, as effectively covered in the predecessor volumes, is an excellent entree to the second half of the overall problem of chemical carcinogenesis, the processes. The active agents trigger a large array of molecular-biochemical alterations to which the target cells, target tissues, and target organisms respond in many select and common ways. This second major aspect of the induction of cancer by chemicals (and by other agents)- the sequence of cellular and tissue changes clearly relevant to cancer-remains the challenge for the future.
Soil organic matter is a reservoir for plant nutrients, provides water-holding capacity, stabilizes soil structure against compaction and erosion, and thus determines soil productivity. All agriculture to some degree depends on soil organic matter. It has long been known that soil organic matter declines when land is taken into cultivation, and that the productivity of new agricultural land is governed by fertility contributions from decomposing natural organic matter. The expansion of agriculture to ever new and more fragile lands, particularly in tropical and developing regions, causes environmental degradation with local effects on soil quality, regional effects on landscape integrity and water quality, and global effects on carbon cycles and the atmosphere. This book summarizes current knowledge of the properties and dynamics of soil organic matter in the tropics, its role in determining soil quality, its stability and turnover, and the options for management in the context of tropical landuse systems, for a readership of resource scientists, economists and advanced students. Maintenance of organic matter is critical for preventing land degradation. Case studies and practical applications are therefore an important part of the book, as are the exploration of future directions in research and management.
Neglected and Underutilized Crops: Future Smart Food explores future food crops with climate resilience potential. Sections cover their botany, nutritional significance, global distribution, production technology, and tolerance to biotic and abiotic stresses of neglected and underutilized crops. By simply changing species in a crop rotation system, the cycle of some pests and diseases is disrupted and probabilities of infestations are reduced. Finally, the book provides case studies that highlight where the adaptation of crops to local environments, especially with regard to climate change, have been successful. These crops can help make agricultural production systems more resilient to climate change. Although a few books on neglected and underutilized crops are available, this comprehensive book covers the full scope of crop husbandry, nutritional significance and global distribution.
This handbook is the first comprehensive book of its kind reviewing the clinically relevant current status of tissue kallikrein and kallikrein-related peptidases research. Since several members of the KLK family are key players in (patho-)physiological processes, structural, functional, and regulatory studies are under way to develop new strategies to prevent and treat disorders to which individual members of the KLK protease family contribute significantly. The goal of this book is to inform clinicians, physician scientists and researchers about the prominent role of the multifaceted and interactive KLK system in normal physiology and pathological organ function.
This is the new and fully revised third edition of the well-received text that is the benchmark book in the field of nutrition and aging. The editors (specialists in geriatric nutrition, medical sociology, and clinical nutrition, respectively) and contributors (a panel of recognized academic nutritionists, geriatricians, clinicians, and other scientists) have added a number of new chapters and have thoroughly updated the widely acclaimed second edition. This third edition provides fresh perspectives and the latest scientific and clinical developments on the interaction of nutrition with age-associated disease and provides practical, evidence-based options to enhance this at-risk population's potential for optimal health and disease prevention. Chapters on a wide range of topics, such as the role of nutrition in physical and cognitive function, and coverage of an array of clinical conditions (obesity, diabetes, heart failure, cancer, kidney disease, osteoporosis), compliment chapters on food insecurity, anti-aging and nutritional supplements, making this third edition uniquely different from previous editions. Handbook of Clinical Nutrition and Aging, Third Edition, is a practical and comprehensive resource and an invaluable guide to nutritionists, physicians, nurses, social workers and others who provide health care for the ever-increasing aging population.
The Fifth International Workshop on Seeds was held at the University of Reading, UK, from 10 to 15 September, 1995. Some 230 seed scientists, from a wide range of disciplines (botanists, biochemists, ecologists, agriculturalists, foresters, and commercial seedsmen), from 31 countries (Europe, the Americas, and Asia) participated in the workshop. A large number of oral and poster presentations was made during the workshop and we are pleased to publish so many of them in these Proceedings. The papers herein are listed by the sessions in which they were presented but, as is often the case, many papers cover a broader range of topics than the session titles imply. For seed physiologists, ecologists, and technologists, this book collates much of the current research on seeds.
The International Society on Oxygen Transport to Tissue (ISOTT, www. isott. info) is an interdisciplinary society comprising about 250 members worldwide. Its purpose is to further the understanding of all aspects of the processes involved in the transport of oxygen from the air to its ultimate consumption in the cells of the various organs of the body. The annual meeting brings together scientists, engineers, clinicians and mathematicians in a unique int- national forum for the exchange of information and knowledge, the updating of participants on latest developments and techniques, and the discussion of controversial issues within the field of oxygen transport to tissue. Founded in 1973, the society has been the leading platform for the presentation of many of the technological and conceptual developments within the field both at the meetings themselves and in the proceedings of the society. These have been published first by Plenum Publishing (1973), then by Kluwer Academic/Plenum Publishers and presently by Springer Publishing, all in the Advances In Expe- mental Medicine and Biology Series. The 36th Annual ISOTT conference was held in Sapporo, Japan during August 3-7, 2008. It was the second occasion that the ISOTT meeting was held in Japan; the first one was held in the same place in 1987 organized by Professor Masaji Mochizuki.
Since several excellent books have appeared on the issue of chemical and biochemical sensing, this compendium concentrates on recent creative new approaches using chemical means for the detection and quanti?cation of - portant analytes. These are presented either from a technical viewpoint or fromtheperspectiveofselectivemolecularrecognitionwitharti?cialreceptor molecules. Consequently, the entire book is subdivided into two categories, i. e. , natural targetsand detection techniques. In the ?rst part, the challenging task of sensing peptides and proteins as wellassaccharidesisaddressedfromseveralperspectives:Smalllibrarieswith maximum diversity are ef?ciently used to reach high af?nity and selectivity of arti?cial hosts for short peptide sequences. Preorganized aromatic vessels are tailored for certain protein epitopes and shown to selectively address the prion protein, and a new conjugation technique operating at physiological conditions on helix-loop-helix motifs, leads to protein binders of exquisite af?nity. Finally, elegant sensor systems for multifunctional carbohydrates in their naturalform,whichuse theprinciple ofphoto-induced electrontransfer for ?uorescence detection, are presented. The second part of this book is devoted to creative detection techniques employing chemical processes: Liposomes with integral self-assembled - acetylene lipid areas show an intense blue color, which gradually changes to red if biological analytes of various sizes speci?cally interact with emb- ded hosts. Principal component analysis and arti?cial neuronal networks are novel methods to quantitatively analyze complex mixtures. An alternative - proach uses arti?cial peptidic pores, which are able to release self-quenched ?uorophoresthataresubstitutedbytighterbindinganalytes.
This multi-author contributed volume gives a comprehensive overview of recent progress in various vibrational spectroscopic techniques and chemometric methods and their applications in chemistry, biology and medicine. In order to meet the needs of readers, the book focuses on recent advances in technical development and potential exploitations of the theory, as well as the new applications of vibrational methods to problems of recent general interest that were difficult or even impossible to achieve in the not so distant past. Integrating vibrational spectroscopy and computational approaches serves as a handbook for people performing vibrational spectroscopy followed by chemometric analysis hence both experimental methods as well as procedures of recommended analysis are described. This volume is written for individuals who develop new methodologies and extend these applications to new realms of chemical and medicinal interest.
Prior to 1974, the ~adrenergic receptors were known only in- directly as entities that responded to drugs in a selective manner to mediate a variety of physiologically important responses. During the intervening years, our view of ~adrenergic receptors has changed dramatically. The availability of high affinity 125I-labeled radioligands selective for these receptors presaged an explosion of experimenta- tion utilizing direct binding assays to establish the biochemical properties of the receptor protein. In the opening chapter, Stadel and Lefkowitz describe this development and its impact on our under- standing of the molecular basis of ~adrenergic receptor function. The availability of well-characterized receptor ligands, coupled with the development of efficient methods for detergent solubilization, formed the basis of receptor purification using affinity chromatography. The related technique of photoaffinity labeling provided a means to estimate the molecular mass of these receptors. The availability of substantial amounts of purified ~2-adrenergic receptor allowed determination of segments of its amino acid se- quence. This information led to the production of polynucleotide probes and eventually to cloning of the receptor gene and determi- nation of the complete primary sequence of the receptor protein. Caron and Lefkowitz review the investigations leading to this major development and discuss the methods involved. They analyze our current perception of the relation of receptor function to its structure and discuss the general features of the G protein-interacting receptor family, of which the ~-adrenergic receptors are prototypes.
The annual Evolutionary Biology Meetings in Marseille aim to bring together leading scientists, promoting an exchange of state-of-the-art knowledge and the formation of inter-group collaborations. This book presents the most representative contributions to the 13th meeting, which was held in September 2009. It comprises 21 chapters, which are organized into the following three categories: * Evolutionary Biology Concepts * Genome/Molecular Evolution * Morphological Evolution/Speciation This book offers an up-to-date overview of evolutionary biology concepts and their use in the biology of the 21st century.
This useful work presents a current overview of key genes involved in the control of apoptosis research together with thoughts on future prospects and clinical applications. While there are several books written on apoptosis, this one deals specifically with its regulation.
The discovery of biological activity associated with flavonoid contaminants in vitamin C preparations from bell peppers and lemons by Szent-Gyorgyi and his associates opened a floodgate of research into the biological functions of this ubiquitous and diverse group of compounds. Since then, a broad range of physiological and biochemical activities were discovered in living systems including most plants and animals. With the continued discovery, isolation and identification of new natural and synthetic compounds exhibiting biological activities, entire research programs are devoted to wide ranging investigations to nearly every conceivable area, from microbial and plant interaction, growth regulation and development to physiological, genetical, medicinal actions and uses in animals. This volume is based on presentations made at a Symposium, titled Flavonoids in Cell Function, held during the 219'h National Meeting of the American Chemical Society held in San Francisco, California on March 29-30, 2000. The book is not intended to be a comprehensive treatise on flavonoid research, only a sampling of recent results. The papers cover a range of topics discussing various approaches to flavonoid study, starting at plant microbe communication through analytical methods to medicinal and systemic implications of these compounds in animal cells and systems. The organizers would like to express their thanks to Cargill Foods, Inc., Minneapolis, Minnesota and the Division of Agricultural and Food Chemistry of the American Chemical Society for financial support. A great deal of thanks is also due to the authors without whose cooperation and patience this volume would not be realized.
Biochemistry of Scandium and Yttrium gathers together existing knowledge about scandium and yttrium from a wide variety of disciplines. Part 2 addresses the biochemical aspects of these two elements, and the various medical and environmental applications. (Part 1 presents a comparative study of the physical and chemical properties of scandium and yttrium, looking at both their similarities and their differences.) While these elements are relatively rare in nature, these books will show that they have unusual physical and chemical properties, and a disproportionate number of important applications. Improved analytical techniques have revealed that scandium and yttrium are present throughout living matter, even though only a relatively limited number of species have been analyzed so far. This fact of course has far-ranging implications for biological and environmental concerns. The major impacts of scandium and yttrium in science, technology, and medicine will be of interest to a wide variety of researchers, including geochemists, inorganic and organic chemists, clinical biochemists, and those specializing in environmental protection.
This thesis describes the inception, design, and implementation of stereoselective desymmetrization reactions in the total synthesis of the natural products pactamycin and paspaline. In the case of pactamycin, the author develops a novel asymmetric Mannich reaction and symmetry-breaking reduction strategy to enable facile construction of the complex core architecture in fifteen steps using commercially available materials - the shortest synthesis to date. He subsequently demonstrates the flexibility of this approach in SAR investigations by highlighting the preparation of twenty-five unique pactamycin structural congeners. For paspaline, the author develops a biocatalytic desymmetrization strategy that allows the highly controlled synthesis of core stereochemistry and provides a platform for the development of new conceptual disconnections in the synthesis of "steroid-like" natural products. This thesis offers a valuable resource for students embarking on a PhD in total synthesis.
International concern in scientific, industrial, and governmental communi ties over traces of xenobiotics in foods and in both abiotic and biotic envi ronments has justified the present triumvirate of specialized publications in and this field: comprehensive reviews, rapidly published research papers progress reports, and archival documentations. These three international publications are integrated and scheduled to provide the coherency essential for nonduplicative and current progress in a field as dynamic and complex as environmental contamination and toxicology. This series is reserved ex clusively for the diversified literature on "toxic" chemicals in our food, our feeds, our homes, recreational and working surroundings, our domestic animals, our wildlife and ourselves. Tremendous efforts worldwide have been mobilized to evaluate the nature, presence, magnitude, fate, and toxi cology of the chemicals loosed upon the earth. Among the sequelae of this broad new emphasis is an undeniable need for an articulated set of authoritative publications, where one can find the latest important world literature produced by these emerging areas of science together with docu mentation of pertinent ancillary legislation. Research directors and legislative or administrative advisers do not have the time to scan the escalating number of technical publications that may contain articles important to current responsibility. Rather, these individu als need the background provided by detailed reviews and the assurance that the latest information is made available to them, all with minimal literature searching.
Over one hundred contributions detail advances in the molecular and cellular biology of eicosanoid production, as well as their role in signal transduction. One of the most exciting developments explored within this collection of articles is the expression of the novel isoform of cyclooxygenase (cox-2), which may play a large role in the development of anti-inflammatory drugs.
Computational and Instrumental Methods in EPR is devoted to both instrumentation and computation aspects of EPR, while addressing applications such as spin relaxation time measurements. However, this is the first comprehensive volume to offer practical, non-invasive spectroscopic methods of analyzing the rheology of biopolymers: comparative studies of polymer fluidity using traditional methods (e.g. viscosity) and nuclear magnetic resonance.
This thesis mainly describes the development of a screening process for a mirror-image library of chiral natural products. It demonstrates how, by using mirror-image proteins for the screening of available natural products, unavailable mirror-image isomers of natural products can be screened in a mirror process. Moreover, as mirror-image isomers including target proteins and natural products are mainly prepared by means of chemical synthesis, the screening strategy presented here suggests the importance of organic chemistry. Natural products are commonly used as valuable resources for drug discovery. However, as they are mostly produced as single enantiomeric forms, researchers have tested o nly natural products bearing one stereochemistry available in nature. As natural products and their enantiomers have identical physicochemical properties and different biological activities, mirror-image isomers of natural products are promising candidates for novel medicinal resources. In an effort to identify anticancer agents from the mirror-image library, chemical protein syntheses of some target oncoproteins, MDM2, MDMX and Grb2, and their applications to the chemical array screening process were achieved. In the course of this process the NP843 enantiomer, which is the enantiomer of an -tocopherol derivative, was successfully identified as a novel MDM2-p53 interaction inhibitor. These results clearly show that a mirror-image library of chiral natural products represents an invaluable medicinal resource. Accordingly, the chemistry-based screening strategy described in this thesis will be of great interest to a broad range of chemists involved in natural product, medicinal, and synthetic chemistry. |
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