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Molecular Geometry Of Body Pattern In Birds
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Author :Antonio Lima-de-Faria Publisher :Springer Science & Business Media ISBN 13 :3642253016 Total Pages :171 pages Book Rating :4.6/5 (422 download)
Book Synopsis Molecular Geometry of Body Pattern in Birds by : Antonio Lima-de-Faria
Download or read book Molecular Geometry of Body Pattern in Birds written by Antonio Lima-de-Faria and published by Springer Science & Business Media. This book was released on 2012-03-19 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: After having read this book you will never see birds in the same way again. The unexpected patterns displayed by a bird’s body have been seen as bizarre events that demanded little attention or were described as ‘amazing curiosities’. None of these surprising features seem to be fortuitous. They appear to be an integral part of a rigid order and a coherent geometry, which is directed by simple gene interactions and molecular cascades occurring at various cellular levels, and at different times, during the organism’s development. A novel geometry unfolds in front of your eyes, giving the body configurations another meaning. Lima-de-Faria is Professor Emeritus of Molecular Cytogenetics at Lund University, Lund, Sweden. This is his sixth book dealing with the molecular organization of the chromosome and its implications for the understanding of the mechanisms responsible for biological evolution.
Book Synopsis Molecular Origins of Brain and Body Geometry by : Antonio Lima-de-Faria
Download or read book Molecular Origins of Brain and Body Geometry written by Antonio Lima-de-Faria and published by Springer. This book was released on 2014-10-07 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Praise of Chromosome Folly by :
Download or read book Praise of Chromosome Folly written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Molecular Docking and Structure-Based Modelling by : Alexandre G. De Brevern
Download or read book Advances in Molecular Docking and Structure-Based Modelling written by Alexandre G. De Brevern and published by Frontiers Media SA. This book was released on 2022-02-24 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ornithology by : Michael L. Morrison
Download or read book Ornithology written by Michael L. Morrison and published by JHU Press. This book was released on 2018-09-03 with total page 1017 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential text for ornithology courses, this book will leave students with a lifelong understanding and appreciation of the biology and ecology of birds. Aves, the birds, is the wildlife group that people most frequently encounter. With over 10,000 species worldwide, these animals are part of our everyday experience. They are also the focus of intense research, and their management and conservation is a subject of considerable effort throughout the world. But what are the defining attributes that make a bird a bird? Aimed at undergraduate and graduate students, Ornithology provides a solid modern foundation for understanding the life and development of birds. Written by renowned experts from around the globe, this comprehensive textbook draws on the latest research to create an innovative learning experience. Moving beyond bones, muscle, and feathers, it provides the core information needed to “build” the bird, linking anatomy and physiology with ecology and behavior. As it reviews the major orders of birds, the book highlights their wide diversity and critically evaluates ornithological concepts and theories. Incorporating brief biographies of leaders in the field, the text describes their contributions in the context of key historical events in bird science. Each chapter ends with a summary of the material covered, a discussion of potential management and conservation applications, and suggested study questions that will stimulate thought and discussion. Contributors: Peter Arcese, George E. Bentley, Lori A. Blanc, William M. Block, Alice Boyle, Leonard A. Brennan, Luke K. Butler, Zac Cheviron, Luis M. Chiappe, Melanie R. Colón, Caren B. Cooper, Robert J. Cooper, Jamie M. Cornelius, Carlos Martinez Del Rio, John Dumbacher, Shannon Farrell, Maureen Flannery, Geoffrey Geupel, Patricia Adair Gowaty, Thomas P. Hahn, Ashley M. Heers, Fritz Hertel, Geoffrey E. Hill, Matthew Johnson, Lukas F. Keller, Dylan C. Kesler, Pablo Sabat Kirkwood, John Klicka, Christopher A. Lepczyk, Ashley M. Long, Scott R. Loss, Graham R. Martin, John M. Marzluff, Susan B. McRae, Michael L. Morrison, Timothy J. O’Connell, Jen C. Owen, Marco Pavia, Jeffrey Podos, Lars Pomara, Jonathan F. Prather, Marco Restani, Alejandro Rico-Guevara, Amanda D. Rodewald, Vanya G. Rohwer, Matthias Starck, Michael W. Strohbach, S. Mažeika P. Sullivan, Diego Sustaita, Kerri T. Vierling, Gary Voelker, Margaret A. Voss, Jeff R. Walters, Paige S. Warren, Elisabeth B. Webb, Michael S. Webster, Eric M. Wood, Robert M. Zink, Benjamin Zuckerberg
Author :National Institutes of Health (U.S.). Division of Research Grants Publisher : ISBN 13 : Total Pages :1212 pages Book Rating :4.3/5 (91 download)
Book Synopsis Research Grants Index by : National Institutes of Health (U.S.). Division of Research Grants
Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1975 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Awards Index written by and published by . This book was released on 1989 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Patterns in Freshwater Fish Ecology by : William J. Matthews
Download or read book Patterns in Freshwater Fish Ecology written by William J. Matthews and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearly a decade ago I began planning this book with the goal of summarizing the existing body of knowledge on ecology of freshwater fishes in a way similar to that of H. B. N. Hynes' comprehensive treatise Ecology of Running Waters for streams. The time seemed appropriate, as there had been several recent volumes that synthesized much information on a range of topics important in fish ecology, from biogeographic to local scales. For example, the "Fish Atlas" (Lee et aI. , 1980) had provided range maps and basic entry to the original literature for all freshwater fishes in North America, and in 1986 Hocutt and Wiley's Zoogeography of North American Fishes provided a detailed synthesis of virtually everything known about distributional ecology of fishes on that continent. Tim Berra (1981) had summarized in convenient map form the worldwide distribution of all freshwater fish families, and Joe Nelson's 1976 and 1984 editions of Fishes of the World had appeared. To complement these "big picture" views of fish distributions, the volume on Community and Evolutionary Ecology of North American Freshwater Fishes, edited by David Heins and myself (Matthews and Heins, 1987), had provided an opportunity for more than 30 individuals or groups to summarize their work on stream fishes (albeit mostly for warmwater systems).
Download or read book Ornithology written by Frank B. Gill and published by Macmillan. This book was released on 2007 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ornithology is the classic text for the undergraduate ornithology course, long admired for its evolutionary approach to bird science. The new edition maintains the scope and expertise that made the book so popular while incorporating the latest research and updating the exquisite program of drawings.
Book Synopsis Biomedical Index to PHS-supported Research by :
Download or read book Biomedical Index to PHS-supported Research written by and published by . This book was released on 1991 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology: How Life Works by : James Morris
Download or read book Biology: How Life Works written by James Morris and published by Macmillan Higher Education. This book was released on 2015-11-27 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology: How Life Works was written in response to recent and exciting changes in biology, education, and technology with the goal of helping students to think like biologists. The text, visual program, and assessments were developed together to provide students with the best resources to gain an understanding of modern biology. Content is selected carefully, is integrated to illustrate the connections between concepts, and follows six themes that are crucial to biology: the scientific method, chemical and physical processes, cells, evolution, ecological interactions, and human impact. The second edition continues this approach, but includes expanded coverage of ecology, new in-class activities to assist instructors in active teaching, new pedagogical support for visual synthesis maps, and expanded and improved assessment.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1972 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neurobiology of human language and its evolution: Primate and Nonprimate Perspectives by : Constance Scharff
Download or read book Neurobiology of human language and its evolution: Primate and Nonprimate Perspectives written by Constance Scharff and published by Frontiers E-books. This book was released on with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of human language has been discussed for centuries from different perspectives. Linguistic theory has proposed grammar as a core part of human language that has to be considered in this context. Recent advances in neurosciences have allowed us to take a new neurobiological look on the similarities and dissimilarities of cognitive capacities and their neural basis across both closely and distantly related species. A couple of decades ago the comparisons were mainly drawn between human and non-human primates, investigating the cytoarchitecture of particular brain areas and their structural connectivity. Moreover, comparative studies were conducted with respect to their ability to process grammars of different complexity. So far the available data suggest that non-human primates are able to learn simple probabilistic grammars, but not hierarchically structured complex grammars. The human brain, which easily learns both grammars, differs from the non-human brain (among others) in how two language-relevant brain regions (Broca’s area and superior temporal cortex) are connected structurally. Whether the more dominant dorsal pathway in humans compared to non-human primates is causally related to this behavioral difference is an issue of current debate. Ontogenetic findings suggest at least a correlation between the maturation of the dorsal pathway and the behavior to process syntactically complex structures, although a causal prove is still not available. Thus the neural basis of complex grammar processing in humans remains to be defined. More recently it has been reported that songbirds are also able to distinguish between sound sequences reflecting complex grammar. Interestingly, songbirds learn to sing by imitating adult song in a process not unlike language development in children. Moreover, the neural circuits supporting this behavior in songbirds bear anatomical and functional similarities to those in humans. In adult humans the fiber tract connecting the auditory cortex and motor cortex dorsally is known to be involved in the repetition of spoken language. This pathway is present already at birth and is taken to play a major role during language acquisition. In songbirds, detailed information exist concerning the interaction of auditory, motor and cortical-basal ganglia processing during song learning, and present a rich substrate for comparative studies. The scope of the Research Topic is to bring together contributions of researchers from different fields, who investigate grammar processing in humans, non-human primates and songbirds with the aim to find answers to the question of what constitutes the neurobiological basis of grammar learning. Open questions are: Which brain networks are relevant for grammar learning? Is there more than one dorsal pathway (one from temporal cortex to motor cortex and one to Broca’s area) and if so what are their functions? Has the ability to process sequences of a given hierarchical complexity evolved in different phylogenetic lines (birds, primates, other vocal production learners such as bats)? Is the presence of a sensory-to-motor circuit in humans a precondition for development of a dorsal pathway between the temporal cortex and Broca’s area? What role do subcortical structures (Basal Ganglia) play in vocal and grammar learning?
Book Synopsis Molecular Biology and Biotechnology by : Robert Allen Meyers
Download or read book Molecular Biology and Biotechnology written by Robert Allen Meyers and published by John Wiley & Sons. This book was released on 1995-06-29 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is one volume 'library' of information on molecular biology, molecular medicine, and the theory and techniques for understanding, modifying, manipulating, expressing, and synthesizing biological molecules, conformations, and aggregates. The purpose is to assist the expanding number of scientists entering molecular biology research and biotechnology applications from diverse backgrounds, including biology and medicine, as well as physics, chemistry, mathematics, and engineering.
Book Synopsis Population Genetic Structure of Understory Birds in a Fragmented Tropical Rainforest by : Laura MacAlister Brown
Download or read book Population Genetic Structure of Understory Birds in a Fragmented Tropical Rainforest written by Laura MacAlister Brown and published by . This book was released on 2000 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1967 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Esoteric written by Brad Olsen and published by CCC Publishing. This book was released on 2017-08-02 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely reworked second edition of Modern Esoteric includes new information, over a dozen additional images, and up-to-date revisions. Winner of the Best Book Design 2014, Modern Esoteric examines the flaws in modern history and looks at how conspiracy theories, esoteric knowledge, and fringe subjects can be used to help change the dead-end course humanity seems to be following. The Lifeology section explores the long and storied "alternative narrative" of life on this planet. In the Control section, author Brad Olsen examines how Big Brother is here in the form of the New World Order, and how they keep the knowledge of humankind's true nature from the mass population. Finally, the Thrive section looks at all the ways humans are evolving to achieve their full potential.
