By James Trefil Physics Professor
James Trefil takes the reader on an exhilarating journey around the borders of present medical knowledge-from astronomy to genetics, from info expertise to cosmology, the good contested questions that preoccupy researchers at the present time and may turn into headlines the following day. In based, witty three-page summations, Dr. Trefil "makes feel of technological know-how for the remainder of us" (Washington Post).
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Till lately, little account has been taken of intercourse ameliorations in lots of examine experiences in psychiatry, medication and body structure. topics of those learn reports have been typically males, with so much researchers utilizing two times as many men as women of their experiences. the necessity to take a sexually differentiated method has resulted in the paintings defined during this e-book, relating exact investigations into the correlations among practical asymmetry of the mind and intercourse.
During this publication, Keekok Lee asks the query, "what is an animal, and the way does our remedy of it inside of captivity impact its prestige as a being ? " This ontological remedy marks the 1st such process in taking a look at animals in captivity. attractive with the ethical questions of zoo-keeping (is it morally justified to maintain a wild animal in captivity?
Elephant feel and Sensibility is a accomplished remedy of the total variety of elephant habit. starting with chapters on evolution and the elephant’s mind, this ebook is an built-in presentation of the elephant’s potential for reminiscence, morality, emotion, empathy, altruism, language, intelligence, studying and instructing.
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But with behaviors that are less clear-cut, like alcoholism and manicdepressive (bipolar) disorders, initial claims for finding a single responsible gene have been questioned. It may be that more than one gene is involved, or it may be that a complex interaction takes place between genes and the environment. In the case of alcoholism, < previous page page_22 next page > < previous page page_23 next page > Page 23 the complexity may arise because different forms of the disease have different genetic bases.
Critics of the theory, while not disputing the existence of the Hayflick limit, argue that most organisms die from other causes long before the limit is reached. Accumulated-accident theories begin by noting that every living cell is a complex chemical factory containing all sorts of machinery to carry out its functions. That machinery is constantly bombarded by chemicals from the environmentnot just the pesticides and pollutants we're used to hearing about but byproducts of the very chemical processes that the cell has to carry out to maintain life.
These tiny variations in magnetic field reveal which parts of the brain are using more blood when a particular task is performed. To watch a living brain function, then, you need only to instruct a volunteer to lie down in an MRI machine and perform a mental task, such as thinking of a certain word. " State-of-the-art machines can differentiate regions to an accuracy of a square millimeter (a millimeter is about the thickness of a dime). This fine resolution is important, because the brain is a highly specialized organ, with each regionthere are about a thousand in allperforming specific tasks.