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Books > Medicine > Pre-clinical medicine: basic sciences > Physiology
The maintenance of arterial blood pressure and the distribution of blood flow to the various organs of the body depends on the control of the pumping action of the heart and of the resistance of the vascular beds in the individual organs in accordance with their metabolic needs. These controls are achieved through the integrated actions of circulat ing hormones, humoral factors that are synthesized and released in the heart and blood vessels, and the autonomic nervous system. The heart, however, is not only the target for the direct and indirect actions of a number of hormones and humoral factors, it is also an endocrine organ in the traditional sense, synthesizing and secreting into the circulation chemical factors that act at distant sites. In this treatise, Hormones and the Heart in Health and Disease, we interpret "endocrinology" broadly and consider traditional hormones as well as autocoids that are secreted by the heart or that act on it. In this overview, the relevant chapters are indicated in parentheses. The discovery of atrial natriuretic peptide (ANP; atrial natriuretic factor, ANF) in the 1980s indicated that the heart does indeed function as an endocrine organ in the classic sense. ANP (Chapter I) is synthesized in the heart and secreted into the circulation for actions on the kidney, where it is a potent natriuretic agent, and on the vasculature, where it causes vasodilation. ANP can also affect myocardial contractility."
Quantitative ultrasound (QUS) of bone is a relatively recent research field. The research community is steadily growing, with interdisciplinary branches in acoustics, medical imaging, biomechanics, biomedical engineering, applied mathematics, bone biology and clinical sciences, resulting in significant achievements in new ultrasound technologies to measure bone, as well as models to elucidate the interaction and the propagation of ultrasonic wave in complex bone structures. Hundreds of articles published in specialists journals are accessible from the Web and from electronic libraries. However, no compilation and synthesis of the most recent and significant research exist. The only book on QUS of bone has been published in 1999 at a time when the propagation mechanisms of ultrasound in bone were still largely unknown and the technology was immature. The research community has now reached a critical size, special sessions are organized in major international meetings (e.g., at the World Congress of Biomechanics, the annual meetings of the Acoustical Society of America, International Bone Densitometry Workshop, etc...). Consequently, the time has come for a completely up to date, comprehensive review of the topic. The book will offer the most recent experimental results and theoretical concepts developed so far and is intended for researchers, graduate or undergraduate students, engineers, and clinicians who are involved in the field. The central part of the book covers the physics of ultrasound propagation in bone. Our goal is to give the reader an extensive view of the mathematical and numerical models as an aid to understand the QUS potential and the types of variables that can be determined by QUS in order to characterize bone strength. The propagation of sound in bone is still subject of intensive research. Different models have been proposed (for example, the Biot theory of poroealasticity and the theory of scattering have been used to describe wave propagation in cancellous bone, whereas propagation in cortical bone falls in the scope of guided waves theories). An extensive review of the models has not been published so far. We intend in this book to present in details the models that are used to solve the direct problem and strategies that are currently developed to address the inverse problem. This will include analytical theories and numerical approaches that have grown exponentially in recent years. Most recent experimental findings and technological developments will also be comprehensively reviewed.
The volume Appetite Control provides a comprehensive description of the mechanisms controlling food intake, and thereby energy balance, in the mammalian organism. During the last decade, research in this area has produced a remarkable wealth of information and has characterized the function of numerous peptides, transmitters, and receptors in appetite control. Dysfunction of these circuits leads to obesity, a growing health concern. However, the plethora of mechanistic information is in marked contrasts to an almost complete lack of anti-obesity drugs that meet the safety standards required for the chronic therapy of morbid obesity. Consequently, ongoing research aims to identify additional targets and agents for a pharmacological intervention. Thus, the mechanisms of appetite control as well as all agents interfering with its control are of considerable practical interest. The authors of the volume are distinguished scientists who are leading experts in the field, and who have contributed important, original data to our understanding of the mechanisms of appetite control. They have quite different scientific backgrounds and, together, they represent all relevant disciplines. Thereby, the topics are presented from different points of view, not exclusively from that of pharmacology and neuroendocrinology. Thus, the volume addresses all scientists who are interested in the field of obesity research and the pathophysiology of appetite control."
Science and technology has been used more and more in the last few decades to gain advantage over competitors. Quite often, however, the actual science involved is not published because a suitable journal cannot be found. The Engineering of Sport brings together work from a very diverse range of subjects including Engineering, Physics, Materials and Biomechanics. The Engineering of Sport represent work which was represented at the 1st International Conference on the Engineering of Sport held in Sheffield, UK in July 1996. Many sports were represented and the material covered split into nine topics covering aerodynamics, biomechanics, design, dynamics, instrumentation, materials, mechanics, modelling, motion analysis, and vibrations. It should be of interest to specialists in all areas of sports research.
For fans of Gut by Giulia Enders Eating is the most pleasurable, gross, necessary, unspeakable biological process we undertake. But very few of us realise what strange wet miracles of science operate inside us after every meal - let alone have pondered the results (of the research). How have physicists made crisps crispier? What do laundry detergent and saliva have in common? Was self-styled 'nutritional economist' Horace Fletcher right to persuade millions of people that chewing a bite of shallot seven hundred times would yield double the vitamins? In her trademark, laugh-out-loud style, Mary Roach breaks bread with spit connoisseurs, beer and pet-food tasters, stomach slugs, potato crisp engineers, enema exorcists, rectum-examining prison guards, competitive hot dog eaters, Elvis' doctor, and many more as she investigates the beginning, and the end, of our food.
This important monograph summarizes a comprehensive study on the maturation of walking in normal children. Research, undertaken at one of the world's leading gait analysis centers, involved over 400 studies on a total of nearly 300 children in ten age-groups from one to seven years. Data are presented on anthropometric measurements; tests of developmental progress; time/distance parameters such as stride length and walking velocity; twelve joint angles on each side measured throughout the gait cycle; dynamic electromyography of phasic activity in seven lower-extremity muscle groups; and force measurements including vertical force, fore/aft shear, medial/lateral shear and torque. At each age, composite joint-angle graphs and time/distance parameters are brought together with film tracings of a representative child in that age group. In addition, advanced methods of statistical analysis have been applied to the joint-angle data to define prediction regions within which ninety-five percent of normal children should lie throughout the gait cycle. Finally, a 'decision tree' is presented from which a fitted age can be inferred for a subject based on non-age-specific data gathered in a motion analysis lab. Practical applications are demonstrated in a chapter devoted to two case studies.
From a New York Times bestselling author, a guide to restoring good bacteria to your gut–and keeping our microbiomes happy and healthy. Because of our highly processed diet, pesticides, and overuse of antibiotics, our guts are now missing so many of the good bacteria that we require to be healthy. As a result, many of us have lost control over our health, weight, mood, and even behavior. With cutting-edge research, Dr. Davis connects the dots between gut health and modern ailments such as SIBO (small intestinal bacterial overgrowth), a silent and profound epidemic, which affects one out of three people and is responsible for an astounding range of human health conditions. Super Gut shows us how to fix your microbiome once and for all. It includes more than forty recipes, a diet plan, and resources so you can pinpoint your gut issues, correct them, and maintain your long-term health and well-being.
A presentation of the most elementary form of pulsatile flow as an important prerequisite for the study of other flow applications in biological systems. The book provides in a single source a complete treatment of the fluid dynamics of flow with the required mathematics and emphasis on the basis mechanics. The style and level of this book make it accessible to students and researchers in biophysics, biology, medicine, bioengineering and applied mathematics working in theoretical and clinical work on the cardiovascular system, as well as in the design of new instrumentation, medical imaging systems, and artificial organs. With problems and exercises.
This second book of the three-volume collection "Ion Transport in Tumor Biology" helps readers gain comprehensive knowledge of the pathophysiology of cancer. The authors highlight that ion transport proteins, channels and transporters - collectively referred to as the transportome - are significantly involved in the development and progression of cancer. Nearly 90% of malignant tumor diseases originate from epithelial cells, the function of which, for the most part, is based on the transportome. This volume focuses on molecular principles by showing that dysregulated expression and/or function of ion transporters have been correlated with malignancy in the vast majority of tumor diseases. Within the story of the various chapters, the authors line out various malfunctions of the transportome and where they can be found at different stages of the metastatic cascade. The authors describe how the interactions between the tumor cells' transportome and the environment reinforce mesenchymal behaviour of cancer cells and contribute to their uncontrolled proliferation, migration, invasion, intra- and extravasation up to the formation of metastases. As part of a three-volume collection, this book will fascinate members of the active research community, as well as clinicians from the cancer field.
This volume is a record of the proceedings of a festspiel held to
honor Jozef F. Zwislocki for his outstanding contributions to
science and to Syracuse University. His contributions to the
knowledge of the hydromechanical, neurophysiological, and
perceptual mechanisms of the auditory system are truly monumental.
In addition, his contributions to the comprehension of the
mammalian auditory system include not only landmark ideas, but also
many of the experimental findings in psychoacoustics and peripheral
auditory physiology that constitute the database which has provided
a springboard for research in laboratories throughout the world.
His efforts to link physics, biology, and psychophysics to create a
basis for our understanding of the nervous system have had an
influence that extends far beyond the science of acoustics.
This book provides a state-of-the-art update, as well as perspectives on future directions of research and clinical applications in the implementation of biomechanical and biophysical experimental, theoretical and computational models which are relevant to military medicine. Such experimental and modeling efforts are helpful, on the one hand, in understanding the aetiology, pathophysiology and dynamics of injury development and on the other hand in guiding the development of better equipment and protective gear or devices that should ultimately reduce the prevalence and incidence of injuries or lessen their hazardous effects. The book is useful for military-oriented biomedical engineers and medical physicists, as well as for military physiologists and other medical specialists who are interested in the science and technology implemented in modern investigations of military related injuries.
The International Society for the Advancement of Kinanthropometry holds a major conference every four years. This volume contains a selection of papers presented at the fourth such event, held at the World Congress on Youth, Leisure and Physical Activity in Brussels. It represents state-of-the-art research in the field of physical development and physical performance with contributions from the UK, Europe, South America, USA and Canada. The papers are divided into four sections covering body composition and growth; physical activity, health and fitness; performance and anthropometry; and growth and performance.
The result of the first Appalachian Conference on neurodynamics,
this volume focuses on processing in biological neural networks.
How do brain processes become organized during decision making?
That is, what are the neural antecedents that determine which
course of action is to be pursued? Half of the contributions deal
with modelling synapto-dendritic and neural ultrastructural
processes; the remainder, with laboratory research findings, often
cast in terms of the models. The interchanges at the conference and
the ensuing publication also provide a foundation for further
meetings. These will address how processes in different brain
systems, coactive with the neural residues of experience and with
sensory input, determine decisions.
There are many separate groups working in gut biology, and they feel that the gut is an excellent model for investigating general problems in differentiation, growth control, stem cell biology, and regeneration and adaptive responses. There is a pressing need to define the objectives of the next 5 to 10 years, and the meeting, Part III of the Gastroenterology Symposia Freiburg 1996 (Falk Symposium No. 94), held in Freiburg, Germany, October 25-26, brought together some of these groups with a view to identifying areas which are not being utilized and need to be exploited, such as transgenic and knockout approaches, retrovirus delivery systems, and model cell/tissue systems. The main themes of the book are gastrointestinal development and differentiation, gut stem cell biology, and the control of gut growth in normal and abnormal situations. Basic research findings are related to clinical situations, and the book will appeal not only to gut cell and molecular biologists, but also to gastroenterologists interested in the potential applications of these subject areas.
Employing a multidisciplinary approach to phospholipid research, this work catalogues the current knowledge of this class of molecules and details the general, chemical, physical and structural properties of phospholipid monolayers and bilayers. Phospholipid applications are also covered.
Carry the same authoritative, useful knowledge that readers of Guyton and Hall have come to trust - in an easily accessible, pocket format. Pocket Companion to Guyton and Hall Textbook of Medical Physiology, 14th Edition, echoes the structure and content of the world's foremost physiology textbook, making it ideal for a quick, portable review or entry point into complex topics. Grasp key information quickly thanks to concise, readable text. Benefit from updated content of the 14th edition of the bestselling text in a condensed synopsis format. Quickly locate more in-depth discussions inside the parent text with abundant cross-references and a parallel chapter organization. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.
This accessible work is the first in more than seventy-five years to discuss the many roles of adrenaline in regulating the "inner world" of the body. David S. Goldstein, an international authority and award-winning teacher, introduces new concepts concerning the nature of stress and distress across the body's regulatory systems. Discussing how the body's stress systems are coordinated, and how stress, by means of adrenaline, may affect the development, manifestations, and outcomes of chronic diseases, Goldstein challenges researchers and clinicians to use scientific integrative medicine to develop new ways to treat, prevent, and palliate disease. Goldstein explains why a former attorney general with Parkinson disease has a tendency to faint, why young astronauts in excellent physical shape cannot stand up when reexposed to Earth's gravity, why professional football players can collapse and die of heat shock during summer training camp, and why baseball players spit so much. Adrenaline and the Inner World is designed to supplement academic coursework in psychology, psychiatry, endocrinology, cardiology, complementary and alternative medicine, physiology, and biochemistry. It includes an extensive glossary.
Probes developments and trends in research and clinical applications of vitamin E, discussing its chemistry and biochemistry and natural occurence in nuts, seeds, whole grains and vegetable and fish-liver oils. The book covers new findings on the role of vitamin E as a biological response modifier.
This book includes all the papers presented at a second World Congress of Science and Football (Liverpool 1987) (Eindhoven).
Physical Activity and Health explains clearly, systematically and in detail the relationships between physical activity, health and disease, and examines the benefits of exercise in the prevention and treatment of a wide range of important conditions. Now in a fully updated and revised third edition, and still the most complete and engaging textbook on this important subject, Physical Activity and Health offers a balanced examination of the very latest evidence linking levels of physical activity with disease and mortality. The book offers a wide-ranging assessment of the importance of inactivity as a factor in major diseases and health conditions such as cardiovascular disease, diabetes, obesity, cancer and osteoporosis, and now also includes a full chapter on exercise and mental health. The book is designed to help the reader evaluate the quality and significance of the scientific evidence, and includes an invaluable discussion of common study designs and the inherent difficulties of measuring physical activity. It explores every contemporary theme in the study of exercise and health, such as the hazards of exercise; exercise and the elderly; children s health and exercise; physical activity and public health policy; and also a critical appraisal of current recommendations for physical activity. Containing useful features throughout, such as chapter summaries, study tasks, guides to supplementary reading and definitions of key terms, and richly illustrated with supporting tables, figures and plates, Physical Activity and Health is an essential course text. Now supported by a companion website featuring self-test questions, PowerPoint slides for lecturers, additional learning activities and web links, this book is vital reading for degree-level students of sport and exercise science, public health, physical therapy, medicine and nursing. "
Every football training session and match should begin with a warm-up in order to improve performance and reduce the risk of injuries. Warm-up in Football provides scientific evidence for the effect of warming up and describes how performance is closely related to muscle temperature. Furthermore, the book explains how the right warm-up prior to a match and at halftime improves the outcome in football. This book provides a basic understanding of the value of warming up and presents a significant number of warm-up programs that can be used whether you are training professional, amateur or youth players. The warm-up programs and exercises are tailored to different training and match situations both on and off the pitch. Highlights from the book include: * New, inspiring and effective ways of warm-up for training. * Warm-up programs before matches. * Warm-up programs to improve performance at the start of the second half. Warm-up in Football is critical reading for all who have an interest in the coaching and physiology of football. |
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