Molecular Origins Of Brain And Body Geometry
DOWNLOAD
Download Molecular Origins Of Brain And Body Geometry PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Molecular Origins Of Brain And Body Geometry book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Molecular Origins Of Brain And Body Geometry
DOWNLOAD
Author : Antonio Lima-de-Faria
language : en
Publisher: Springer
Release Date : 2014-10-07
Molecular Origins Of Brain And Body Geometry written by Antonio Lima-de-Faria and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-07 with Science categories.
New concepts arise in science when apparently unrelated fields of knowledge are put together in a coherent way. The recent results in molecular biology allow to explain the emergence of body patterns in animals that before could not be understood by zoologists. There are no ”fancy curiosities” in nature. Every pattern is a product of a molecular cascade originating in genes and a living organism arises from the collaboration of these genes with the outer physical environment. Tropical fishes are as startling in their colors and geometric circles as peacocks. Tortoises are covered with the most regular triangles, squares and concentric circles that can be green, brown or yellow. Parallel scarlet bands are placed side by side of black ones along the body of snakes. Zebras and giraffes have patterns which are lessons in geometry, with their transversal and longitudinal stripes, their circles and other geometric figures. Monkeys, like the mandrills, have a spectacularly colored face scarlet nose with blue parallel flanges and yellow beard. All this geometry turns out to be highly molecular. The genes are many and have been DNA sequenced. Besides they not only deal with the coloration of the body but with the development of the brain and the embryonic process. A precise scenario of molecular events unravels in the vertebrates. It may seem far-fetched, but the search for the origin of this geometry made it mandatory to study the evolution of matter and the origin of the brain. It turned out that matter from its onset is pervaded by geometry and that the brain is also a prisoner of this ordered construction. Moreover, the brain is capable of altering the body geometry and the geometry of the environment changes the brain. Nothing spectacular occurred when the brain arrived in evolution. Not only it came after the eye, which had already established itself long ago, but it had a modest origin. It started from sensory cells on the skin that later aggregated into clusters of neurons that formed ganglia. It also became evident that pigment cells, that decide the establishment of the body pattern, originate from the same cell population as neurons (the neural crest cells). This is a most revealing result because it throws light on the power that the brain has to rapidly redirect the coloration of the body and to change its pattern. Recent experiments demonstrate how the brain changes the body geometry at will and within seconds, an event that could be hardly conceived earlier. Moreover, this change is not accidental it is related to the surrounding environment and is also used as a mating strategy. Chameleons know how to do it as well as flat fishes and octopuses. No one would have dared to think that the brain had its own geometry. How could the external geometry of solids or other figures of our environment be apprehended by neurons if these had no architecture of their own? Astonishing was that the so called ”simple cells”, in the neurons of the primary visual cortex, responded to a bar of light with an axis of orientation that corresponded to the axis of the cell’s receptive field. We tend to consider our brain a reliable organ. But how reliable is it? From the beginning the brain is obliged to transform reality. Brain imagery involves: form, color, motion and sleep. Unintentionally these results led to unexpected philosophical implications. Plato’s pivotal concept that ”forms” exist independently of the material world is reversed. Atoms have been considered to be imaginary for 2,000 years but at present they can be photographed, one by one, with electron microscopes. The reason why geometry has led the way in this inquiry is due to the fact that where there is geometry there is utter simplicity coupled to rigorous order that underlies the phenomenon where it is recognized. Order allows variation but imposes at the same time a canalization that is patent in what we call evolution.
Discovering The Brain
DOWNLOAD
Author : National Academy of Sciences
language : en
Publisher: National Academies Press
Release Date : 1992-01-01
Discovering The Brain written by National Academy of Sciences and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-01-01 with Medical categories.
The brain ... There is no other part of the human anatomy that is so intriguing. How does it develop and function and why does it sometimes, tragically, degenerate? The answers are complex. In Discovering the Brain, science writer Sandra Ackerman cuts through the complexity to bring this vital topic to the public. The 1990s were declared the "Decade of the Brain" by former President Bush, and the neuroscience community responded with a host of new investigations and conferences. Discovering the Brain is based on the Institute of Medicine conference, Decade of the Brain: Frontiers in Neuroscience and Brain Research. Discovering the Brain is a "field guide" to the brainâ€"an easy-to-read discussion of the brain's physical structure and where functions such as language and music appreciation lie. Ackerman examines: How electrical and chemical signals are conveyed in the brain. The mechanisms by which we see, hear, think, and pay attentionâ€"and how a "gut feeling" actually originates in the brain. Learning and memory retention, including parallels to computer memory and what they might tell us about our own mental capacity. Development of the brain throughout the life span, with a look at the aging brain. Ackerman provides an enlightening chapter on the connection between the brain's physical condition and various mental disorders and notes what progress can realistically be made toward the prevention and treatment of stroke and other ailments. Finally, she explores the potential for major advances during the "Decade of the Brain," with a look at medical imaging techniquesâ€"what various technologies can and cannot tell usâ€"and how the public and private sectors can contribute to continued advances in neuroscience. This highly readable volume will provide the public and policymakersâ€"and many scientists as wellâ€"with a helpful guide to understanding the many discoveries that are sure to be announced throughout the "Decade of the Brain."
Evolutionary Neuroscience
DOWNLOAD
Author : Jon H Kaas
language : en
Publisher: Academic Press
Release Date : 2020-05-30
Evolutionary Neuroscience written by Jon H Kaas and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-30 with Psychology categories.
Evolutionary Neuroscience, Second Edition, is a collection of chapters on brain evolution that combines selected topics from the recent comprehensive reference, Evolution of Nervous Systems (Elsevier, Academic Press, 2017, 9780128040423). The selected chapters cover a broad range of topics, from historical theory, to the most recent deductions from comparative studies of brains. The articles are organized in sections focused on history, concepts and theory, the evolution of brains from early vertebrates to present-day fishes, amphibians, reptiles and birds, the evolution of mammalian brains, and the evolution of primate brains, including human brains. Each chapter is written by a leader or leaders in the field. Specific topics include brain character reconstruction, principles of brain scaling, basic features of vertebrate brains, the evolution of the major sensory systems, other parts of brains, what we can learn from fossils, the origin of neocortex, and the evolution of specializations of human brains. The collection of articles will be interesting to anyone who is curious about how brains evolved from the simpler nervous systems of the first vertebrates into the many different complex forms now found in present-day vertebrates. - Provides the most comprehensive, authoritative and up-to-date single volume collection on brain evolution - Presents a full color treatment, with many illustrations - Written by leading scholars and experts - Features chapters on brain character reconstruction, principles of brain scaling, basic features of vertebrate brains, the evolution of the major sensory systems, and other parts of brains - Discusses what we can learn from fossils, the origin of neocortex, and the evolution of specializations of human brains
On The Origin Of Form
DOWNLOAD
Author : Stuart Pivar
language : en
Publisher: North Atlantic Books
Release Date : 2009
On The Origin Of Form written by Stuart Pivar and has been published by North Atlantic Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Mathematics categories.
On the Origin of Form presents a new account of evolution and the origin of life based on the premise that the body form of any species is encoded not in the DNA but in the patterned structure of the primordial germ plasm--the universal predecessor of the egg. Two hundred years after Johann von Goethe's Faustian quest for the Urform, the archetypal design underlying all living form, comes the recent discovery that organic forms are derived from a unique, self-organized, pre-embryonic structure. This explanation of evolution is an alternative to the now widely questioned Neo-Darwinist theory of natural selection of random mutations. This new model is based on known, relatively uncomplicated scientific principles and is easily accessible to the interested layman. Included are sixty-four pages of illustrations that support this new theory. For additional information, please visit www.ontheoriginofform.com.
Molecular Biology Of The Cell
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004
Molecular Biology Of The Cell written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Cells categories.
The Molecule Of More
DOWNLOAD
Author : Daniel Z. Lieberman
language : en
Publisher: BenBella Books
Release Date : 2018-08-14
The Molecule Of More written by Daniel Z. Lieberman and has been published by BenBella Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-14 with Psychology categories.
Why are we obsessed with the things we want only to be bored when we get them? Why is addiction perfectly logical to an addict? Why does love change so quickly from passion to indifference? Why are some people die-hard liberals and others hardcore conservatives? Why are we always hopeful for solutions even in the darkest times—and so good at figuring them out? The answer is found in a single chemical in your brain: dopamine. Dopamine ensured the survival of early man. Thousands of years later, it is the source of our most basic behaviors and cultural ideas—and progress itself. Dopamine is the chemical of desire that always asks for more—more stuff, more stimulation, and more surprises. In pursuit of these things, it is undeterred by emotion, fear, or morality. Dopamine is the source of our every urge, that little bit of biology that makes an ambitious business professional sacrifice everything in pursuit of success, or that drives a satisfied spouse to risk it all for the thrill of someone new. Simply put, it is why we seek and succeed; it is why we discover and prosper. Yet, at the same time, it's why we gamble and squander. From dopamine's point of view, it's not the having that matters. It's getting something—anything—that's new. From this understanding—the difference between possessing something versus anticipating it—we can understand in a revolutionary new way why we behave as we do in love, business, addiction, politics, religion—and we can even predict those behaviors in ourselves and others. In The Molecule of More: How a Single Chemical in Your Brain Drives Love, Sex, and Creativity—and will Determine the Fate of the Human Race, George Washington University professor and psychiatrist Daniel Z. Lieberman, MD, and Georgetown University lecturer Michael E. Long present a potentially life-changing proposal: Much of human life has an unconsidered component that explains an array of behaviors previously thought to be unrelated, including why winners cheat, why geniuses often suffer with mental illness, why nearly all diets fail, and why the brains of liberals and conservatives really are different.
From Molecules To Networks
DOWNLOAD
Author : John H. Byrne
language : en
Publisher: Elsevier
Release Date : 2003-11-10
From Molecules To Networks written by John H. Byrne and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-11-10 with Medical categories.
An understanding of the nervous system at virtually any level of analysis requires an understanding of its basic building block, the neuron. This book provides the solid foundation of the morphological, biochemical, and biophysical properties of nerve cells that is needed by advanced undergraduates and graduate students, as well as researchers in need of a thorough reference.* Highly referenced for readers to pursue topics of interest in greater detail* Unique coverage of the application of mathematical modeling and simulation approaches not found in other textbooks* Richly illustrated, four color presentation throughout* Includes CD-ROM of all of the illustrations
Cumulated Index Medicus
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1989
Cumulated Index Medicus written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Medicine categories.
Select Topics In The Physics Of The Origin Of Life
DOWNLOAD
Author : V. Alexander Stefan
language : en
Publisher: Stefan University Press
Release Date : 2002-12-05
Select Topics In The Physics Of The Origin Of Life written by V. Alexander Stefan and has been published by Stefan University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-12-05 with Science categories.
the origin-of-life problem and the proteinoid theory molecular biology and the reconstruction of microbial phylogenies: des liaisons dangereuses? prebiotic chirality and life concentration and organization of precursors at inorganic interplayers and interfaces THE CHEMICAL ORIGINS OF LIFE AND MIND symmetry breaking and the origin of life THE WEAK FORCE AND SETH: THE SEARCH FOR EXTRA-TERRESTRIAL HOMOCHIRALITY COMMUNICATION BETWEEN ACTION AND REACTION UNDERLYING THE PHYSICAL ORIGIN OF LIFE randomness, determinism, and evolution
Embryology
DOWNLOAD
Author : Luis Violin Pereira
language : en
Publisher: BoD – Books on Demand
Release Date : 2012-03-30
Embryology written by Luis Violin Pereira and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-30 with Science categories.
Embryology is a branch of science concerned with the morphological aspects of organismal development. The genomic and molecular revolution of the second half of the 20th century, together with the classic descriptive aspects of this science have allowed greater integration in our understanding of many developmental events. Through such integration, modern embryology seeks to provide practical knowledge that can be applied to assisted reproduction, stem cell therapy, birth defects, fetal surgery and other fields. This book focuses on human embryology and aims to provide an up-to-date source of information on a variety of selected topics. The book consists of nine chapters organized into three sections, namely: 1) gametes and infertility, 2) implantation, placentation and early development, and 3) perspectives in embryology. The contents of this book should be of interest to biology and medical students, clinical embryologists, laboratory researchers, obstetricians and urologists, developmental biologists, molecular geneticists and anyone who wishes to know more about recent advances in human development.