Download or read book Army Science and Technology Master Plan written by United States. Department of the Army and published by . This book was released on 2001 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sleep and Aging written by Mark P. Mattson and published by Elsevier. This book was released on 2005-06-20 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the mechanisms involved in the maintenance of neuroendocrine-immune interactions in ageing. The lack of this maintenance leads to the appearance of age-related diseases (cancer, infections, dementia) and subsequent disability. The capacity of some hormones or nutritional factors in restoring and remodelling the neuroendocrine-immune response during ageing is reported presenting possible new anti-ageing strategies in order to reach healthy ageing and longevity

Download or read book Sleep and Alertness written by David F. Dinges and published by New York : Raven Press. This book was released on 1989 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, leading investigators analyze napping patterns and daytime sleepiness in humans and assess the value of napping as a solution to problems of daytime alertness. After reviewing what is currently known about polyphasic sleep in mammals, the contributors examine the development of human napping and present results of sleep latency studies showing that from adolescence onward, pronounced sleepiness occurs in the middle of the day. Other contributors discuss the chronobiological and ultradian aspects of napping and describe napping patterns observed in time-free environments. Extensive findings are presented on napping patterns in adults and on the effects of napping on performance during prolonged work periods and in shift workers. Full consideration is also given to cultural views on napping and the siesta. The book also includes a chapter on daytime sleep episodes, naps, and sleepiness in individuals with medical sleep disorders. (Product Description).

Download or read book Epidemiology of Sleep written by Kenneth L. Lichstein and published by Psychology Press. This book was released on 2013-06-17 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is the prevalence of insomnia in a particular age group, in men and women, or in Caucasians and African Americans? What is the average total sleep time among normal sleepers among these groups? How does the sleep of Caucasians and African Americans differ? These are just some of the questions addressed in The Epidemiology of Sleep. This new book presents the most detailed and comprehensive archive of normal and abnormal sleep patterns. Based on a landmark study supported by the National Institute on Aging, 772 subjects from a host of populations including men, women, and various age and ethnic groups, prepared detailed sleep diaries for a two-week period. The use of these sleep diaries yielded a plethora of data on such characteristics as normal sleep patterns, various forms of insomnia, fatigue, depression, anxiety, and daytime sleepiness differentiated by age, sex, and ethnicity. The results generated by these data, charted in the book's numerous tables and graphs, provide a critical methodological advance in the sleep literature. The Epidemiology of Sleep opens with an overview of the rationale and unique characteristics of the study. This is followed by a comprehensive review of the existing epidemiological literature on sleep. Chapter three presents a detailed description of the methods used in the survey followed by meticulous information on the epidemiology of normal and insomnia sleep, that is unparalleled in the literature. Chapter six provides an archive of sleep patterns among African Americans. The book concludes with a discussion and interpretation of the most interesting findings. This insightful study, coupled with the comprehensive review of the existing literature on the epidemiology of sleep, make this volume an invaluable resource for sleep researchers, clinicians, health and clinical psychologists, gerontologists, epidemiologists, and advanced students.

Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1991 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hibernation and Torpor in Mammals and Birds written by Charles P Lyman and published by Elsevier. This book was released on 2013-07-10 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hibernation and Torpor in Mammals and Birds explores the physiological factors that control hibernation and torpor in birds and mammals. This text covers topics ranging from metabolism in hibernation to the role of endocrines, respiration and acid-base state in hibernation, and theories of hibernation. This book is comprised of 14 chapters and begins with an overview of some clear-cut definitions and why mammals and birds hibernate. The reader is then introduced to the variations from euthermia that have been observed among birds and mammals. To give some structure to this listing, the approach is phylogenetic, starting with the birds and proceeding through the primitive to the more advanced mammals. Subsequent chapters explains the process of entering hibernation and the hibernating state, itself; capability of a species in natural hibernation to arouse from that state using self-generated heat; physiological changes at the start of a spontaneous arousal; and physiological mechanisms underlying the ability of hibernators to rewarm. Consideration is also given to intermediary metabolism in hibernation, cold adaptation of metabolism in hibernators, and the response of hibernators to various extrinsic influences such as neoplastic growth, radiation injury, and parasitism and symbionts. This book will be of interest to students and researchers in fields ranging from zoology to physiology and biophysics.

Download or read book Cardiac Dynamics written by J. Baan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiac Dynamics is the name of a relatively young field of study, born from the fruitful interaction between branches of two different disciplines: medicine and physics. "Dynamics" is the branch of physics which deals with the action of forces on bodies or particles in motion or at rest. "Cardiac" relates to the clinical field of cardiology but also to cardiophysiology, both of which are specialized branches of medicine. Narrower than the well established field of Hemodynamics, Cardiac Dynamics is restricted to dynamic phenomena occurring in and around the heart. The mathematical treatment of such phenomena, however, is vastly more complex because of the intricate nature of the mechanisms involved in the cardiac action. Thus, whereas hemodynamics is concerned with predominantly passive (visco-) elastic structures - vessels - containing time-variant flow of viscous flui- blood -, the mechanical study of the heart requires additional con siderations such as: active elastic components representing the contractile mechanism of cardiac muscle, complex geometry and fiber structure in the myocardial wall, autoregulatory mechanisms, and intricate flow patterns associated with valve motion. Viewed in this light it is not surprising that attempts to describe ventricular pump function and to quantify contractile performance have not reached the level of sophistication which is common in e. g. arterial hemodynamics. For the same reason, many of the often simplified approaches to describe ventricular mechanics failed to stand up to more rigorous theoretical, experimental or clinical testing.