Download or read book Genetic Toxicology written by Raymond F. Fleck and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: To meet the needs of an ever-growing world population for food and fiber, agriculture uses an arsenal of chemicals to control insects, weeds and other pests that compete with man in the agricultural arena. In addition to their intended effect, many of these biologically active materials affect non-target organisms including man himself. There is concern about the resulting occupational exposure of those who work in agriculture and the environmental health of those who live in rural areas. Unintended side effects from the use of agricultural chemicals are further complicated by the dispersal of these substances well beyond the area of immediate use, through food chains, atmospheric transport, irrigation runoff, percolation to and diffusion through ground water, sometimes giving rise to public health and environmental problems at a distance from the place of application. In addition to toxic substances introduced into the agro ecosystem by man, one must be concerned about naturally occurring agents including mfcotoxins, plant poisons, infective biological agents and the levels of certain heavy metals. The formation of toxic substances, many of them mutagenic, during cooking and other processing of food is a related problem. While acute effects are more immediate and somewhat readily discerned, chronic and genetic effects tend to be more obscure and sometimes surface in a crisis situation long after substantial damage has been sustained. Genotoxicity assays and epidemiological studies play increasing roles in predicting and evaluating long term effects of low-level exposure to toxic materials.

Download or read book Plasmids in Bacteria written by Donald R. Helinski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Control of Environmental Pollutants written by Gilbert S. Omenn and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gilbert S. Omenn Dean, Public Health and Community Medicine University of Washington Seattle, Washington 98195 On behalf of the University of Washington, the City of Seattle, the sponsors and donors, and my co-organizers, I am delighted to welcome all of you to this Conference on Genetic Control of Environ mental Pollutants. My only regret is that Dr. Alexander Hollaender, who has inspired so many of us as young scientists and stimulated so many trail-blazing conferences in environmental sciences and in gen etic engineering, is ill and was unable to make the trip to Seattle. He sends his warm good wishes for an outstanding meeting and a fine volume. The purpose of this Conference is to identify and assess strat egies for more effectively and safely managing wastes and toxic sub stances in the environment, in part through use of genetically engi neered microorganisms. There is a sense of desperation in our soci ety that modern technologies have introduced a bewildering array of potential hazards to human health and to our environment. There is an accompanying sense of frustration that our prodigious basic re search capabilities and our technological ingenuity have not yielded practical ways to control many pollutants and waste streams, or- better still--to convert them to useful products.

Download or read book Encyclopedia of Environmental Management Four Volume Set written by Sven Erik Jorgensen and published by CRC Press. This book was released on 2012-12-13 with total page 3513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of an Outstanding Academic Title Award from CHOICE Magazine Encyclopedia of Environmental Management gives a comprehensive overview of environmental problems, their sources, their assessment, and their solutions. Through in-depth entries and a topical table of contents, readers will quickly find answers to questions about specific pollution and management issues. Edited by the esteemed Sven Erik Jørgensen and an advisory board of renowned specialists, this four-volume set shares insights from more than 500 contributors—all experts in their fields. The encyclopedia provides basic knowledge for an integrated and ecologically sound management system. Nearly 400 alphabetical entries cover everything from air, soil, and water pollution to agriculture, energy, global pollution, toxic substances, and general pollution problems. Using a topical table of contents, readers can also search for entries according to the type of problem and the methodology. This allows readers to see the overall picture at a glance and find answers to the core questions: What is the pollution problem, and what are its sources? What is the "big picture," or what background knowledge do we need? How can we diagnose the problem, both qualitatively and quantitatively, using monitoring and ecological models, indicators, and services? How can we solve the problem with environmental technology, ecotechnology, cleaner technology, and environmental legislation? How do we address the problem as part of an integrated management strategy? This accessible encyclopedia examines the entire spectrum of tools available for environmental management. An indispensable resource, it guides environmental managers to find the best possible solutions to the myriad pollution problems they face. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact us to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367 / (email) [email protected] International: (Tel) +44 (0) 20 7017 6062 / (email) [email protected]

Download or read book Induced Mutagenesis written by Christopher W. Lawrence and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concern is often expressed that our environment may include an increasingly large variety of mutagens, but the extent of the potential hazard they pose has yet to be fully evaluated. A variety of empirical procedures has been devised with which to estimate the mutagenic potency of suspect agents, and the relative merits of different tests are currently under debate. Although such tests are of great value, and are indeed indispensable, they are not, nevertheless, sufficient. In the long term, accurate estimation of hazard will also require a better understanding of the various mechanisms of mutagenesis, and in many instances these remain remarkably elusive. Our knowledge and appreciation of the problem has increased substantially over the last few years, but the precise way in which many mutagens cause mutations is not yet known. The aims of this conference were therefore two-fold. The first was to survey present information about mutagenic mechanisms, drawing together data from work with various experimental approaches and organisms, in order to discern the principles governing the action of different mutagens. The second was to examine the implications of such principles for the execution and evaluation of test procedures, and critically assess the research areas that need further attention in order to improve the interpretation of test results. Chris Lawrence v ACKNOWLEDGEMENT We gratefully acknowledge the support provided for this Conference by the U.,S. Department of Energy, The Foundation for Microbiology, Exxon Corporation and the University of Rochester.

Download or read book Tissue Culture in Forestry and Agriculture written by Randolph R. Henke and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This symposium is the third in a series featuring the propaga tion of higher plants through tissue culture. The first of these symposia, entitled "A Bridge Between Research and Application," was held at the University in 1978 and was published by the Technical Information Center, Department of Energy. The second symposium, on "Emerging Technologies and Strategies," was held in 1980 and pub lished as a special issue of Environmental and Experimental Botany. One of the aims of these symposia was to examine the current state of-the-art in tissue culture technology and to relate this state of technology to practical, applied, and commercial interests. Thus, the third of this series on development and variation focused on embryogenesis in culture: how to recognize it, factors which affect embryogenesis, use of embryogenic systems, etc.; and variability from culture. A special session on woody species again emphasized somatic embryogenesis as a means of rapid propagation. This volume emphasizes tissue culture of forest trees. All of these areas, we feel, are breakthrough areas in which significant progress is expected in the next few years.

Download or read book Genetic Consequences of Nucleotide Pool Imbalance written by Frederick De Serres and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is concerned with the genetic consequences of nu cleotide pool imbalance. There are a number of ways in which this state can be achieved and the majority of papers in this volume de scribe the effects of nucleotide pool imbalance on DNA replication and repair, and the induction of gene mutations in various organisms. This book grew out of a Conference on "Genetic Consequences of Nu cleotide Pool Imbalance" which was held at the National Institute of Environmental Health Sciences on May 9-11, 1983. The Organizing Com mittee consisted of Drs. Diana Anderson (BIBRA), Robert Haynes (York University), Bernard Kunz (NIEHS), Barry Glickman (NIEHS), and Frederick J. de Serres (NIEHS), Chairman. The meeting was org- ized by the staff of the Office of the Associate Director for Genetics and was financed solely by the National Institute of Environmental Health Sciences. Frederick J. de Serres, Ph.D. Associate Director for Genetics v CONTENTS SECTION I. INTRODUCTION Molecular Mechanisms in Genetic Stability and Change: 1 The Role of Deoxyribonucleotide Pool Balance •••••• Robert H. Haynes SECTION II. NUCLEOTIDE METABOLISM 25 Metabolic Effects of Poly(ADP-ribose) Inhibitors •••••••• Kathryn M. Milam and James E. Cleaver Ribonucleotide Reductase and Deoxyribonucleotide 33 POQ 1 s ............................................ . Peter Reichard 47 Enzymatic Channeling of DNA Precursors •••••••••••••••••• Christopher K. Mathews A Possible Secondary Role for Thymine-Containing DNA 67 Precursors ....................................... . Robert J. Melamede and Susan S. Wallace Multiple Mechanisms of Adenosine Toxicity in an Adenosine Sensitive Mutant of Baby Hamster 103 Kidney (BHK) Cells ............................... .

Download or read book Neutrons in Biology written by Benno P. Schoenborn and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Management Handbook Second Edition Six Volume Set written by Sven Erik Jorgensen and published by CRC Press. This book was released on 2022-07-30 with total page 3829 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together a wealth of knowledge, the Handbook of Environmental Management, Second Edition, gives a comprehensive overview of environmental problems, their sources, their assessment, and their solutions. Through in-depth entries, and a topical table of contents, readers will quickly find answers to questions about pollution and management issues. This six-volume set is a reimagining of the award-winning Encyclopedia of Environmental Management, published in 2013, and features insights from more than 500 contributors, all experts in their fields. The experience, evidence, methods, and models used in studying environmental management is presented here in six stand-alone volumes, arranged along the major environmental systems. Features of the new edition: The first handbook that demonstrates the key processes and provisions for enhancing environmental management. Addresses new and cutting -edge topics on ecosystem services, resilience, sustainability, food-energy-water nexus, socio-ecological systems and more. Provides an excellent basic knowledge on environmental systems, explains how these systems function and offers strategies on how to best manage them. Includes the most important problems and solutions facing environmental management today.

Download or read book Sister Chromatid Exchanges written by Raymond Tice and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromosomes, being well-defined structures that are easily vis ible under the optical microscope, readily lend themselves to in tense physical and biochemical study. The understanding of the structure and function of this most critical genetic material has progressed through a number of interesting stages. Often connected with the development of new techniques in staining and photography, using the standard microscope and the electron microscope. It is interesting to look back at the history of cytogenetics. I would like especially to emphasize the work of Karl Sax and many of his students. Work with Tradescantia became feasible after Edgar Anderson straightened out the ecology and Sax took advantage of the small number of chromosomes easily visible under the microscope. As a matter of fact, this development is seen as the foundation for the quantitative analysis of radiation effects on chromosomes. During the 50 years since then, more refined studies have been initiated. The study of cytogenetic mechanisms has become an important tool for the recognition of the effects of environmental factors on all liv ing systems and has made SCE studies possible. One of the most important stages in chromosome research was the development, in radiation biology, of radiolabeling the chromosome with tritiated thymidine. This technique, published in 1957 by Dr.

Download or read book The International Competitive Implications of Toxicological Standards written by United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on International Scientific Cooperation and published by . This book was released on 1988 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Basic Biology of New Developments in Biotechnology written by Alexander Hollaender and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Allen I. Laskin Biosciences Research Exxon Research and Engineering Company Linden, New Jersey I was contacted in the Fall of 1981 by Professors Martin Dworkin and Palmer Rogers, of the University of Minnesota and asked to participate in the orgnization of the 1983 conference in the series, "Interface Between Biology and Medicine". They and the other members of the advisory committee had the vision to realize that this was a time to depart somewhat from the traditional theme, since one of the major areas of interest in the biological and related sciences these days is that of biotechnology in a broader sense than its impact on medicine alone. In designing the format of the Conference, we considered another factor. There has been a plethora of conferences, symposia, and meetings on biotechnology over the past few years, and the faces and topics have become rather familiar. There has been a strong emphasis on the development of the technology and the "biotechnology industry"; less attention has been paid to the science behind it. One might get the impression from some of these meetings and from the popular press that biotechnology has just recently sprung up, apparently full blown; the very fundamental scientific discoveries and the great body of 1 ALLEN I. LASKIN 2 continuing research that forms that basis for the technology is often obscured.

Download or read book Risk Analysis written by John J. Cohrssen and published by DIANE Publishing. This book was released on 1999-05 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed for consumers of risk information, this book offers a balance between the technical and nontechnical literature. The discipline of risk analysis has developed into an organized body of knowledge and methods only within the past 20 years. The passage of federal laws to protect public health and the environment has generated rapid growth in risk analysis in numerous fields. Statements of risk need to be understood to be useful to the public and environmental managers. This guidebook provides a tool for understanding risk analysis. Chapters: overview of risk analysis; hazard identification; risk assessment; and risk communication.

Download or read book Plant Cell Culture in Crop Improvement written by Kenneth Giles and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current and potential importance of plant tissue culture techniques in crop improvement is hard to overemphasize. There are few areas where these techniques will have more possible im pact than in tropical agriculture, where the availability of high productivity varieties is sadly lacking in many species. The potential for the rapid, clonal propagation of elite individuals and the use of controlled multiline planting could have a major effect on crop yield and disease resistance in many areas of the world. This volume is a collection of papers presented at the Con ference on "Crop Improvement Through Tissue Culture", held at the Base Institute, Calcutta, India in December 1981. It attempts to bring together local research workers, familiar with the agri cultural resources of the area and tissue culture and molecular 4 level workers. It was the hope of the conference that the "cross fertilization" of ideas would lead to new approaches and activity in this area. The editors trust that this collection of papers will stimu~ late interest and research in the tissue culture and improvement of crop plants everywhere. v ACKNOWLEDGEMENTS The symposium from which the papers in this book are drawn was held at Bose Institute, Calcutta on December 6 to December 10, 1981.

Download or read book Organ and Species Specificity in Chemical Carcinogenesis written by Robert Langenbach and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Symposium on Organ and Species Specificity in Chemical Carcinogenesis was held March 1981 in Raleigh, North Carolina. Dr. James Miller concluded this Symposium with these remarks: "Without a doubt all of us would agree this has been a very successful symposium in illustrating a very wide range of chemical, stereochemical, biochemical, metabolic, molecular, and biological factors in chemical carcinogenesis. I think it is noteworthy that many of the discussions have dealt with pharmacodynamic, or toxicodynamic, factors that can influence the biological activities of the extremely wide range of structures that we choose to call chemical carcinogens. I sincerely hope that after this symposium everyone here will realize the very great need we have for further information on these agents in the species we profess to be working for, the human species. We badly need an adequate data base on human organs, human tissues, human cells, human subcellular preparations, and human body fluids. I don't think we can rely on extrapolations of data on chemical carcinogenesis from experimental animals to humans, no matter how sophisticated or plausible these extrapolations may seem, until we know far more about chemical carcinogenesis in humans. Now, I'd like to add a somewhat personal note. As many of you know, my wife and I have shared a joint career of some 40 years in this field, and I'd like to emphasize in these closing remarks the factor of youth.

Download or read book Mutations in Man written by G. Obe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This year we remember the 39th anniversary of the atomic bomb explo sions in Hiroshima and Nagasaki, which led to the exposure of thou sands of people to high doses of ionizing radiations. Nearly 18 years earlier, on the 15th of September, 1927, H. J. Muller presented his paper The Problem of Genic Modification at the Fifth International Congress of Genetics in Berlin, in which he brilliantly demonstrated the muta genic activity of X-rays. In 1928, K. H. Bauer formulated his mutation theory of the origin of cancer, and already in 1914, Th. Boveri speculat ed that tumor cells originate from an abnormal chromosomal comple ment. In the meantime we have learned that also nonionizing radiation and an immense number of environmental chemicals, both, man-made and naturally occurring, are mutagenic in a variety of test systems, in cluding human cells. In no case has it been shown unequivocally that physical or chemical mutagens have led to an elevation of the mutation rate in the germ cells of man, but in view of the huge body of experi mental data this seems to be a problem of detection. It can be expect ed that germ cell mutations are induced as a consequence of exposure to mutagens in man, as yet undetectable with the methods at hand. An uncontrolled addition of mutations to the human gene pool may well have unforeseen and catastrophic consequences in future genera tions for whom we should feel responsible.

Download or read book Proceedings of National Symposium on Comparative Environmental Mutagenesis written by Iqbal S. Grover and published by . This book was released on 1988 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: