Author: Henry Still
Publisher:
ISBN: 9780811711401
Category : Science
Languages : en
Pages : 236

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Author: Lynne Peeples
Publisher: Penguin
ISBN: 0593538927
Category : Science
Languages : en
Pages : 280

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Book Description
How the groundbreaking science of circadian rhythms can help you sleep better, feel happier, and improve your overall health Your body contains a symphony of tiny timepieces, synchronized to the sun and subtle signals in your environment and behavior. But modern insults like artificial light, contrived time zones, and late-night meals can wreak havoc on your internal clocks. Armed with advances in biology and technology, a circadian renaissance is reclaiming those lost rhythms. The Inner Clock explores the emerging science and its transformative applications: How could taking a walk in the morning and going to bed at the same time each night keep your body in sync? Why are some doctors prescribing treatments at specific times of day? And how might a better understanding of our circadian rhythms improve educational outcomes, optimize sports performance, and support the longevity of our planet? Science journalist Lynne Peeples seeks out the scientists, astronauts, athletes, and patients at the forefront of a growing movement. Along the way, she sleeps in a Cold War-era bunker, chases the midnight sun, spits into test tubes, and wears high-tech light sensors to decipher what makes our internal clocks tick and how we can reset them for the better.

Author: Daniel B. Forger
Publisher: MIT Press
ISBN: 0262552817
Category : Science
Languages : en
Pages : 369

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Book Description
An introduction to the mathematical, computational, and analytical techniques used for modeling biological rhythms, presenting tools from many disciplines and example applications. All areas of biology and medicine contain rhythms, and these behaviors are best understood through mathematical tools and techniques. This book offers a survey of mathematical, computational, and analytical techniques used for modeling biological rhythms, gathering these methods for the first time in one volume. Drawing on material from such disciplines as mathematical biology, nonlinear dynamics, physics, statistics, and engineering, it presents practical advice and techniques for studying biological rhythms, with a common language. The chapters proceed with increasing mathematical abstraction. Part I, on models, highlights the implicit assumptions and common pitfalls of modeling, and is accessible to readers with basic knowledge of differential equations and linear algebra. Part II, on behaviors, focuses on simpler models, describing common properties of biological rhythms that range from the firing properties of squid giant axon to human circadian rhythms. Part III, on mathematical techniques, guides readers who have specific models or goals in mind. Sections on “frontiers” present the latest research; “theory” sections present interesting mathematical results using more accessible approaches than can be found elsewhere. Each chapter offers exercises. Commented MATLAB code is provided to help readers get practical experience. The book, by an expert in the field, can be used as a textbook for undergraduate courses in mathematical biology or graduate courses in modeling biological rhythms and as a reference for researchers.

Author: Gunter Klein
Publisher: Springer Science & Business Media
ISBN: 0387693580
Category : Science
Languages : en
Pages : 134

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Book Description
Nearly everything making up what we call the “environment” of a plant has an infuence on the way it grows. Sunlight, te- perature, moisture contents of soil and atmosphere and vib- tions are all obvious examples of environmental components, and transient variations in their amount or intensity lead the plant to manifest more or less immediate responses. Small changes in carbon dioxide level in the atmosphere can even have effects, but these take a longer time to be registered – at least those that are visible, albeit at the microscopic level. Plants meet the challenges of the environment by means of acclimation. In this respect, plants are notable for the pl- ticity of their development. However, where morphological or physiological plasticity is no longer an option, the responses would be by means of adaptations as a result of genetic - lection or genetic “assimilation” (Waddington 1957). Thus, a feature that was once a facultative transient response to an environmental perturbation becomes a constitutive charac- ristic of plant structure or function. It is in this way that the environment continually molds the way in which plants de- lop, and also defnes the areas upon planet Earth where they will thrive.

Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 80

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Book Description
First multi-year cumulation covers six years: 1965-70.

Author: Jonathan White
Publisher: Trinity University Press
ISBN: 1595348069
Category : Nature
Languages : en
Pages : 280

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Book Description
In Tides: The Science and Spirit of the Ocean, writer, sailor, and surfer Jonathan White takes readers across the globe to discover the science and spirit of ocean tides. In the Arctic, White shimmies under the ice with an Inuit elder to hunt for mussels in the dark cavities left behind at low tide; in China, he races the Silver Dragon, a twenty-five-foot tidal bore that crashes eighty miles up the Qiantang River; in France, he interviews the monks that live in the tide-wrapped monastery of Mont Saint-Michel; in Chile and Scotland, he investigates the growth of tidal power generation; and in Panama and Venice, he delves into how the threat of sea level rise is changing human culture—the very old and very new. Tides combines lyrical prose, colorful adventure travel, and provocative scientific inquiry into the elemental, mysterious paradox that keeps our planet’s waters in constant motion. Photographs, scientific figures, line drawings, and sixteen color photos dramatically illustrate this engaging, expert tour of the tides.

Author: Leon Kreitzman
Publisher: Profile Books
ISBN: 1847653723
Category : Science
Languages : en
Pages : 288

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Book Description
Popular science at its most exciting: the breaking new world of chronobiology - understanding the rhythm of life in humans and all plants and animals. The entire natural world is full of rhythms. The early bird catches the worm -and migrates to an internal calendar. Dormice hibernate away the winter. Plants open and close their flowers at the same hour each day. Bees search out nectar-rich flowers day after day. There are cicadas that can breed for only two weeks every 17 years. And in humans: why are people who work anti-social shifts more illness prone and die younger? What is jet-lag and can anything help? Why do teenagers refuse to get up in the morning, and are the rest of us really 'larks' or 'owls'? Why are most people born (and die) between 3am-5am? And should patients be given medicines (and operations) at set times of day, because the body reacts so differently in the morning, evening and at night? The answers lie in our biological clocks the mechanisms which give order to all living things. They impose a structure that enables us to change our behaviour in relation to the time of day, month or year. They are reset at sunrise and sunset each day to link astronomical time with an organism's internal time.

Author: Salvatore J. Garzino
Publisher:
ISBN:
Category : Psychology
Languages : en
Pages : 278

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Book Description

Author: John T. Burns
Publisher: Scarecrow Press
ISBN: 9780810828315
Category : Nature
Languages : en
Pages : 306

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Book Description
This volume is the first bibliography to be published on the broad subject of cycles in humans and nature. The importance of cycles as a model for understanding the world is as old as the Bible and other ancient records of past civilizations. The modern investigation of diverse fields of study has resulted in the concept of cycles once again gaining center stage as an interdisciplinary model for reaching a better understanding of the nature of our universe. Major categories of cycles covered in this bibliography are: Astrophysics, Atmospheric Science, Biology, Botany, Geoscience, Medicine, Social Science, Zoology, and Interdisciplinary. Over 600 sources of information on thousands of cycles are carefully reviewed to enable the reader maximum access to the most substansive evidence for cycles in each field. A balance of general readings as well as more technical articles is maintained throughout the bibliography. An introduction provides an overview of the broad spectrum of information on cycles, indicating those areas of controversy as well as of agreement. The claims of cycles in social unrest, economics, and climatology are noted, as well as the more well-known cycles in biology, physiology, and medicine. The volume has an extensive table of contents to facilitate the location of many subcategories of cycles. An extensive index also enables the location of citations for specific researchers and for numerous subjects.

Author: William MUDGE (Colonel, F.R.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 138

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