Browse Results

Showing 37,851 through 37,875 of 100,000 results

Effects of Mineral Dusts on Cells (Nato ASI Subseries H: #30)

by Brooke T. Mossman Raymond O. Begin

The Fourth International Workshop on "In Vitro Effects of Mineral Dusts on Cells" was held on September 20 - 23, 1988 in Auberge Estrimont, Orford, Quebec, Canada. The emphasis of the N. A. T. O. Advanced Research Workshop was the use of cell and organ culture and lavage cell populations obtained from man and laboratory animals to elucidate cellular and molecular events occur­ ring after their interaction with fibrous and nonfibrous particulates, including metal compounds. In seven sessions, an international representation of scientists from 17 countries (Austria, Belgium, Canada, France, Federal Republic of Germany, India, Japan, Netherlands, Norway, Poland, Portugal, Union of South Africa, Sweden, Switzerland, United Kingdom, United States of America, and Yugoslavia) presented recent research findings in the following areas: Epithelial cell injury and proliferation by minerals. Physico-chemical properties of minerals in relation to their biologic effects. Mechanisms of dust-induced pneumoconioses. Clinical and experimental studies. Mechanisms of cytotoxicity, mutagenicity and carcinogenicity. Oxidants, cytotoxicity and disease. Mechanisms of mineral-induced inflammation. Mechanisms of carcinogenesis. A session on "Questions, risk and public policy" provided a lively discussion on the relevance of in vitro experiments to carcinogenicity studies in man and their implications in the formation of regulatory policies. VI The organizing committee for this workshop was: Co-Chairs: B. T. Mossman (USA) and R. Begin (Canada) E. G. Beck (FRG) A. Lange (Poland) A. Brody (USA) P. Nettesheim (USA) R. C. Brown (UK) Q. Rahman (India) J. Bignon (France) K. Robock (FRG) Fisher G.

Effects of Nanoconfinement on Catalysis (Fundamental and Applied Catalysis)

by Rinaldo Poli

This book highlights the recent advances and state of the art in the use of functionalized nanostructured environments on catalysis. Nanoconfinements considered include well-defined molecular cages, imprinted self-assembled supramolecules, polymers made by living or controlled polymerization, metallorganic frameworks, carbon nanotubes, mesoporous inorganic solids, and hybrids thereof. Advantages of nanoconfinement of catalysts discussed include higher activities, improved selectivities, catalyst stabilization, cooperativity effects, simplified protocols for cascade syntheses, better catalyst recovery, and recyclability. The multiple applications that these materials offer are revolutionizing industrial sectors such as energy, electronics, sensors, biomedicine, and separation technology.

Effects of Nicotine on Biological Systems (Advances in Pharmacological Sciences)

by Adlkofer Thurau

As part of its scientific activities, the German Research Council on Smoking and Health regularly provides opportunities for scientists to discuss progress in the field of nicotine research. In this context, the Research Council sponsored a Satellite Symposium in Hamburg, June 28-30, 1990 entitled "Effects of Nicotine on Biological Systems". This meeting was held in conjunction with the XIth International Congress of Pharmacology in Amsterdam and follows the first Satellite Symposium on Nicotine which was convened in Brisbane, Australia in 1987. The aim of these conferences has been to discuss state of the art research on the pharmacology and toxicology of nicotine and its metabolites and to integrate this information to help define nicotinic actions on the central and peripheral nervous system as well as to evaluate health or behavioral effects associated with use of this alkaloid. Furthermore, at this conference, potential therapeutic benefits of nicotine for certain disease states were discussed. Smoking and the health effects of smoking were dealt with only as far as they could not be separated from the effects of nicotine. This volume contains the lectures presented at the symposium and illustrates that knowledge of nicotine has advanced considerably in recent years with regard to mechanisms of its actions. Despite such progress however, it is apparent that a' large number of questions remain unanswered, especially in the light of new insight into cellular and molecular mechanisms which can be affected by nicotine.

The Effects of Noise on Aquatic Life (Advances in Experimental Medicine and Biology #730)

by Arthur N. Popper and Anthony Hawkins

The Second International Conference on the Effects of Noise on Aquatic Life will take place in Ireland August 15-20, 2010. The main emphasis of the conference will be on defining the current state of knowledge. However, we will also assess progress in the three years since the First conference. The Second conference will place strong emphasis on recent research results, the sharing of ideas, discussion of experimental approaches, and analysis of regulatory issues.

The Effects of Noise on Aquatic Life II: 3rd International Conference (Advances in Experimental Medicine and Biology #875)

by Arthur N. Popper Anthony Hawkins

The meeting of Aquatic Noise 2013 will introduce participants to the most recent research data, regulatory issues and thinking about effects of man-made noise and will foster critical cross-disciplinary discussion between the participants. Emphasis will be on the cross-fertilization of ideas and findings across species and noise sources. As with its predecessor, The Effects of Noise on Aquatic Life: 3rd International Conference will encourage discussion of the impact of underwater sound, its regulation and mitigation of its effects. With over 100 contributions from leading researchers, a wide range of sources of underwater sound will be considered.

Effects of Non-locality in Gravity and Quantum Theory (Springer Theses)

by Jens Boos

This thesis is devoted to the systematic study of non-local theories that respect Lorentz invariance and are devoid of new, unphysical degrees of freedom. Such theories are attractive for phenomenological applications since they are mostly unconstrained by current experiments. Non-locality has played an increasingly important role in the physics of the last decades, appearing in effective actions in quantum field theory, and arising naturally in string theory and non-commutative geometry. It may even be a necessary ingredient for quantum theories of gravity. It is a feature of quantum entanglement, and may even solve the long-standing black hole information loss problem. “Non-locality” is a broad concept with many promising and fruitful applications in theoretical and mathematical physics. After a historical and pedagogical introduction into the concept of non-locality the author develops the notion of non-local Green functions to study various non-local weak-field problems in quantum mechanics, quantum field theory, gravity, and quantum field theory in curved spacetime. This thesis fills a gap in the literature by providing a self-contained exploration of weak-field effects in non-local theories, thereby establishing a “non-local intuition” which may serve as a stepping stone for studies of the full, non-linear problem of non-locality.

Effects of Opera Music from Brain to Body: A Matter of Wellbeing (Neurocultural Health and Wellbeing)

by Lorenzo Lorusso Michele Augusto Riva Vittorio Alessandro Sironi

This book explores the connection between melodrama and medicine from multiple perspectives. Neuroscientists study the relationship between opera and brain functioning in the light of new findings in the fields of neurophysiology, neuroimaging, cognitive science and neuro-musicology; clinicians investigate the therapeutic potential of music, especially in the field of treatment and rehabilitation of individuals with neurodegenerative diseases; medical historians analyse the representation of diseases and those who cure diseases within operas; occupational doctors report descriptions of diseases that affect workers in the opera world and particularly focus on psychiatric and psychological alterations. Opera, with its instrumental and vocal accompaniment, is considered the most complete form of theatrical performance. However, little is known about the mechanisms of brain activity under the influence of melodrama on singers, musicians, and listeners. The use of neuroimaging techniques has enabled a better understanding of the neuronal mechanisms and circuits involved during an opera performance. Over the past 20 years, melodrama has increasingly been used as a therapeutic approach in various neurological and neuropsychiatric pathologies, such as depression, cognitive impairment, and even coma. The book also discusses the ways in which melodrama affects professionals involved in music and interventions to reduce or alleviate occupational diseases, leading to improved health and higher life satisfaction. The ultimate goal is to improve therapeutic interventions in neurological diseases and professional disorders, relying on solid neuroscientific data. This book will be of great interest to neurologists, neurobiologists, psychiatrists, occupational doctors and therapists in music.

Effects of Persistent and Bioactive Organic Pollutants on Human Health

by David O. Carpenter

Examines what we know about the relationship between organic chemicals and human disease Organic chemicals are everywhere: in the air we breathe, the water we drink, and the food we eat. They are also found in a myriad of common household and personal care products. Unfortunately, exposure to some organic chemicals can result in adverse health effects, from growth and developmental disorders to cancer and neurodegenerative diseases. This book examines how organic chemicals affect human health. It looks at the different diseases as well as how individual organ systems are affected by organic chemicals. Effects of Persistent and Bioactive Organic Pollutants on Human Health begins with an introductory chapter explaining why we should care about organic chemicals and their effect on human health. Next, the authors address such important topics as: Burden of cancer from organic chemicals Organic chemicals and obesity Effects of organic chemicals on the male reproductive system Organic chemicals and the immune system Intellectual developmental disability syndromes and organic chemicals Mental illness and exposure to organic chemicals The book ends with an assessment of how much human disease is caused by organic chemicals. Chapters have been contributed by leading international experts in public and environmental health and are based on the latest research findings. Readers will find that all of the contributions are clear and easy to comprehend, with extensive references for further investigation of individual topics. Effects of Persistent and Bioactive Organic Pollutants on Human Health is recommended for students and professionals in medicine as well as public and environmental health, bringing them fully up to date with what we know about the relationship between organic chemicals and human health.

Effects of Persistent and Bioactive Organic Pollutants on Human Health

by David O. Carpenter

Examines what we know about the relationship between organic chemicals and human disease Organic chemicals are everywhere: in the air we breathe, the water we drink, and the food we eat. They are also found in a myriad of common household and personal care products. Unfortunately, exposure to some organic chemicals can result in adverse health effects, from growth and developmental disorders to cancer and neurodegenerative diseases. This book examines how organic chemicals affect human health. It looks at the different diseases as well as how individual organ systems are affected by organic chemicals. Effects of Persistent and Bioactive Organic Pollutants on Human Health begins with an introductory chapter explaining why we should care about organic chemicals and their effect on human health. Next, the authors address such important topics as: Burden of cancer from organic chemicals Organic chemicals and obesity Effects of organic chemicals on the male reproductive system Organic chemicals and the immune system Intellectual developmental disability syndromes and organic chemicals Mental illness and exposure to organic chemicals The book ends with an assessment of how much human disease is caused by organic chemicals. Chapters have been contributed by leading international experts in public and environmental health and are based on the latest research findings. Readers will find that all of the contributions are clear and easy to comprehend, with extensive references for further investigation of individual topics. Effects of Persistent and Bioactive Organic Pollutants on Human Health is recommended for students and professionals in medicine as well as public and environmental health, bringing them fully up to date with what we know about the relationship between organic chemicals and human health.

Effects of Radiation on Semiconductors

by Viktor S. Vavilov

The effects of electromagnetic radiation and high-energy par­ ticles on semiconductors can be divided into two main processes: (a) the excitation of electrons (the special case is internal ioniza­ tion, i. e. , the generation of excess charge carriers); and(b) dis­ turbance of the periodic structure of the crystal, i. e. , the forma­ tion of "structural radiation defects. " Naturally, investigations of the effects of radiation on semiconductors cannot be considered in isolation. Thus, for example, the problern of "radiation de­ fects" is part of the generalproblern of crystal lattice defects and the influence of such defects on the processes occurring in semi­ conductors. The same is true of photoelectric and similar phe­ nomena where the action of the radiation is only the start of a complex chain of nonequilibrium electronprocesses. Nevertheless, particularly from the point of view of the experimental physicist, the radiation effects discussed in the present book have inter­ esting features: several types of radiation may produce the same resul t (for example, ionization by photons and by charged particles) or one type of radiation may produce several effects (ionization and radiation -defect formation). The aim of the author was to consider the most typical prob­ lems. The subjects discussed differ widely from one another in the extent to which they have been investigated.

The Effects of Relativity in Atoms, Molecules, and the Solid State

by Stephen Wilson I. P. Grant B. L. Gyorffy

Recent years have seen a growing interest in the effects of relativity in atoms, molecules and solids. On the one hand, this can be seen as result of the growing awareness of the importance of relativity in describing the properties of heavy atoms and systems containing them. This has been fueled by the inadequacy of physical models which either neglect relativity or which treat it as a small perturbation. On the other hand, it is dependent upon the technological developments which have resulted in computers powerful enough to make calculations on heavy atoms and on systems containing heavy atoms meaningful. Vector processing and, more recently, parallel processing techniques are playing an increasingly vital role in rendering the algorithms which arise in relativistic studies tractable. This has been exemplified in atomic structure theory, where the dominant role of the central nuclear charge simplifies the problem enough to permit some prediction to be made with high precision, especially for the highly ionized atoms of importance in plasma physics and in laser confinement studies. Today's sophisticated physical models of the atom derived from quantum electrodynamics would be intractable without recourse to modern computational machinery. Relativistic atomic structure calculations have a history dating from the early attempts of Swirles in the mid 1930's but continue to provide one of the primary test beds of modern theoretical physics.

Effects of smoking- Pie Chart 1

by Sheffield Vi Service

This is a pie chart showing the effects of smoking on men aged 35 to 64.

Effects of Smoking - Pie Chart 2

by Sheffield Vi Service

This is a pie chart showing the effects of smoking on men aged 65 and over.

Effects of Smoking - Pie Chart 2

by Sheffield Vi Service

This is a pie chart showing the effects of smoking on men aged 65 and over.

The Effects of SO2 on a Grassland: A Case Study in the Northern Great Plains of the United States (Ecological Studies #45)

by William Lauenroth E. M. Preston William 1727-1791 Williams

When Springer-Verlag undertook publication of this volume, two opportunities arose. The first was to bring together the significant findings ofthe interacting parts of a large field experiment on a whole ecosystem. Scientific specialists and the public are rightly concerned with large-scale impacts of human activity on landscapes and with the challenge of predicting subtle, long-range repercussions of air pollution. A fundamental issue is whether ecological systems like grasslands, which have evolved for several million years under stressful conditions such as variable climate and overgrazing, are more robust than other systems in tolerating new atmospheric impacts of pollution and toxicity. At what level, and when, will an extra geochemical input, like sulfur (Chapter 4), an essential nutrient for proteins and life processes, become an overload on these systems? Some grasses and grassland ecosystems seem fairly adaptable to burdens in addition to those of weather change and tissue removal. How can experts learn to project the future of the heartland of America and other grasslands of the world on the basis of only a few years of observation and control? The second opportunity addresses a broader aspect of the project that is of interest to many readers who are not concerned with details of physiology or food chains, or the overall productivity and variations of a single plant-animal-soil community.

Effects of Space Weather on Technology Infrastructure: Proceedings of the NATO ARW on Effects of Space Weather on Technology Infrastructure, Rhodes, Greece, from 25 to 29 March 2003. (NATO Science Series II: Mathematics, Physics and Chemistry #176)

by Ioannis A. Daglis

The 17 chapters of this book grew out of the tutorial lectures given by leading world-class experts at the NATO Advanced Research Workshop “Effects of Space Weather on Technology Infrastructure” - ESPRIT, which was held in Rhodes on March 25-29, 2004. All manuscripts were refereed and subsequently meticulously edited by the editor to ensure the highest quality for this monograph. I owe particular thanks to the lecturers of the ESPRIT Advanced Research Workshop for producing these excellent tutorial reviews, which convey the essential knowledge and the latest advances in our field. Due to the breadth, extensive literature citations and quality of the reviews we expect this publication to serve extremely well as a reference book. Multimedia material referring to individual chapters of the book is accessible on the accompanying CD. The aim of ESPRIT was to assess existing knowledge and identify future actions regarding monitoring, forecasting and mitigation of space weather induced malfunction and damage of vital technological systems operating in space and on the ground.

Effects of Stress on Photosynthesis: Proceedings of a conference held at the ‘Limburgs Universitair Centrum’ Diepenbeek, Belgium, 22–27 August 1982 (Advances in Agricultural Biotechnology #3)

by R. Marcelle H. Clijsters H. Van Poucke

This volume contains the papers, presented during a conference, organized jointly by the "Opzoekingsstation van Gorsem" and the "Limburgs Universitair Centrum", Belgium from 22 to 27 August 1982. For this third meeting, the chosen topic was the effect of different stresses on photosynthesis. Most of the research in this field is realized on water stress and temperature stress; this situation is refllected in the conference programme. However, the imp- tance of the other factors such as light, CO , salinity, anaerobiosis, was 2 also emphasized especially during the important discussion sessions. We express our gratitude to Drs. J. Gale, P. Jarvis, G.H. Krause, P.E. Kriedemann and P.S. Nobel for their excellent leadership during the discussion sessions. Particular thanks are also due to Dr. H.~i. Woolhouse who gave us an excellent inaugural address and whose erudition largely contributed to the interest of the discussions. For the first time in our experience of editors, we decided to use camera ready copies in order to publish more rapidly the proceedings and at a lower price. For a lot of reasons (among other things the bad choice of type of letter to be used and the choice of instructions to authors which were not perfectly followed by the authors), the technical presentation of this book will appear as non homogeneous; we accepted this lack of homogeneity with the hope tbat the publication time would be shorter in spite of the fact that, some authors delivered their manuscript with delay.

The Effects of Technology and Institutions on E-Participation: A Cross-National Analysis (Routledge Research in Public Administration and Public Policy)

by Pragati Rawat John C. Morris

In this book Pragati Rawat and John C. Morris identify and evaluate the impact of factors that can help explain the difference in e-participation, public participation using information and communication technology, in different countries. While cross-sectional studies have been covered, few have taken an in-depth look at cross-national studies. This book attempts to fill the gap using quantitative panel data to explore the influence of technology and institutions, and the impact of their complex relationships in a mediation and moderation analysis, on e-participation. The current study reviews the scholarly work in the field of “offline” and “online participation” to identify a set of antecedents that influence e-participation. A conceptual framework is developed, supported by the theories from the public policy and socio-technical premise. The authors utilize secondary data, primarily from the UN and World Economic Forum, for 143 countries from three waves of surveys to measure the dependent and explanatory variables. The panel data is statistically analyzed and findings reveal the role of technology as a mediator as well as a moderator for institutions’ impact on e-participation. The Effects of Technology and Institutions on E-Participation provides a groundbreaking country-level analysis that will appeal to academics and students of e-government and Digital Government, Public Policy, Public Administration, Public Sector Innovation, and Public Participation.

The Effects of Technology and Institutions on E-Participation: A Cross-National Analysis (Routledge Research in Public Administration and Public Policy)

by Pragati Rawat John C. Morris

In this book Pragati Rawat and John C. Morris identify and evaluate the impact of factors that can help explain the difference in e-participation, public participation using information and communication technology, in different countries. While cross-sectional studies have been covered, few have taken an in-depth look at cross-national studies. This book attempts to fill the gap using quantitative panel data to explore the influence of technology and institutions, and the impact of their complex relationships in a mediation and moderation analysis, on e-participation. The current study reviews the scholarly work in the field of “offline” and “online participation” to identify a set of antecedents that influence e-participation. A conceptual framework is developed, supported by the theories from the public policy and socio-technical premise. The authors utilize secondary data, primarily from the UN and World Economic Forum, for 143 countries from three waves of surveys to measure the dependent and explanatory variables. The panel data is statistically analyzed and findings reveal the role of technology as a mediator as well as a moderator for institutions’ impact on e-participation. The Effects of Technology and Institutions on E-Participation provides a groundbreaking country-level analysis that will appeal to academics and students of e-government and Digital Government, Public Policy, Public Administration, Public Sector Innovation, and Public Participation.

Effects of Temperature on Ectothermic Organisms: Ecological Implications and Mechanisms of Compensation

by Wolfgang Wieser

The study of thermoregulation in endotherms has contributed much to the emergence of the concept of control theory in biology. By the same token, the study of tempera­ ture adjustment in ectotherms is likely to have a far-reaching influence on ideas on the regulation of metabolism in general. The reason for this is that ectotherms, in adapting to the vagaries of a thermally unstable environment, deploy a range of subtle molecular and organismic strategies. Thus the experimenter, using temperature changes as a tool, is well equipped to analyze some of these strategies. This approach has enabled some important mechanisms of temperature-induced adaptation to be elucidated; the most striking of these are the effects on metabolism of changes in the conformation of enzymes and the transfer properties of membranes. Furthermore, there is a vague but persistent feeling among those working in this field that changes in the nervous system will ultimately prove to be the agency by which many of the molecular mechanisms of temperature adaptation are controlled. Should this indeed be the case, a new phase would soon begin in our understanding of the interactions between the systemic and the cellular levels of organization. However, it is not only questions about the causes of temperature adaptation that can provide answers of potential importance to the general biologist; of equal significance are questions as to the meaning of temperature adaptation in a particular organism.

Effects of Temperature & PH on an Enzyme (contracted)

by Rnib

This diagram shows 2 graphs which show the effects of temperature and PH on E-C reaction. The top graph shows rate of reaction/PH. The bottom graph shows rate of reaction/temperature.

The Effects of Ultrasound on the Kinetics of Crystallization

by Alexander P. Kapustin

One of the important new research methods involves the use of ultrasonics during crystallization or dis­ solution. Ul trasound has become extensively used in many branches of science' and technology in recent years, as we may see from the number of papers' published. The total up to 1939 was about 700, but by 1960 it was well over 5000. Applications in physics, crystallography, chemistry, and so on provide a powerful means of discover­ ing new effects, although such studies tend to be very complicated and demand an acquaintance with a wide range of topics. The main effect of ultrasound on matter is to change the energy state considerably; an ultra­ 6 2 sound flux as low as 10 W/cm at 3 x 10 cis produces a pressure wave whose amplitude is 5 atm, while the 5 maximum acceleration may exceed 10 times that of gravity, the maximum particle speed being 40 m/sec and 2 the radiation pressure 1300 dynes/cm [I, 2]. 2 Recent ultrasonic emitters, even without focusing systems, can give steady fluxes up to 300 W/cm • The kinematic and dynamic parameters of ultrasonic fileds are such that they can cause effects at the level of atoms and molecules, quite apart from macroscopic effects.

Effects of Wetland Conversion to Farming on Water Quality and Sediment and Nutrient Retention in a Tropical Catchment (IHE Delft PhD Thesis Series)

by Abias Uwimana

The study used a combination of landscape-scale synoptic surveys (catchment, reaches) and mesocosm surveys (experimental plots) to assess the impacts of conversion of natural valley-bottom wetlands to farming land on the water quality and retention of sediment and nutrients. The results showed that temperature, pH, electrical conductivity and dissolved oxygen concentration decreased, and total suspended solids (TSS) increased with storm water increase. Nitrogen (TN) and phosphorus (TP) accumulated in the catchment during the dry season and washed into the water courses during the early stages of the higher flows, with subsequent lower concentrations at the end of the rains due to dilution. Large proportions of the annual loads of TSS, TP and TN (93%, 60% and 67%, respectively) were transported during rainfall events that occurred in 115 days. Fishponds acted as temporal traps of TSS, TN and TP at the early stages of farming, and were a source of and TN and TP at the end of the farming period, in contrast to rice farming that generated sediments and nutrients early in the farming period and trapped them at the end of the farming season. Wetlands mostly acted as sinks but sometimes as a source of sediment and nutrients.

Effects of Wetland Conversion to Farming on Water Quality and Sediment and Nutrient Retention in a Tropical Catchment (IHE Delft PhD Thesis Series)

by Abias Uwimana

The study used a combination of landscape-scale synoptic surveys (catchment, reaches) and mesocosm surveys (experimental plots) to assess the impacts of conversion of natural valley-bottom wetlands to farming land on the water quality and retention of sediment and nutrients. The results showed that temperature, pH, electrical conductivity and dissolved oxygen concentration decreased, and total suspended solids (TSS) increased with storm water increase. Nitrogen (TN) and phosphorus (TP) accumulated in the catchment during the dry season and washed into the water courses during the early stages of the higher flows, with subsequent lower concentrations at the end of the rains due to dilution. Large proportions of the annual loads of TSS, TP and TN (93%, 60% and 67%, respectively) were transported during rainfall events that occurred in 115 days. Fishponds acted as temporal traps of TSS, TN and TP at the early stages of farming, and were a source of and TN and TP at the end of the farming period, in contrast to rice farming that generated sediments and nutrients early in the farming period and trapped them at the end of the farming season. Wetlands mostly acted as sinks but sometimes as a source of sediment and nutrients.

Refine Search

Showing 37,851 through 37,875 of 100,000 results