Download or read book Embryology and World Evolution written by Karl König and published by . This book was released on 2009 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Haeckel s Embryos written by Nick Hopwood and published by University of Chicago Press. This book was released on 2015-05-11 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing the changes worked by circulation and copying, interpretation and debate, this book uses the case to explore how pictures succeed and fail, gain acceptance and spark controversy. It reveals how embryonic development was made a process that we can see, compare, and discuss, and how copying - usually dismissed as unoriginal
Download or read book The Changing Role of the Embryo in Evolutionary Thought written by Ron Amundson and published by Cambridge University Press. This book was released on 2005-03-14 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book Ron Amundson examines two hundred years of scientific views on the evolution-development relationship from the perspective of evolutionary developmental biology (evo-devo). This perspective challenges several popular views about the history of evolutionary thought by claiming that many earlier authors had made history come out right for the Evolutionary Synthesis. The book starts with a revised history of nineteenth-century evolutionary thought. It then investigates how development became irrelevant with the Evolutionary Synthesis. It concludes with an examination of the contrasts that persist between mainstream evolutionary theory and evo-devo. This book will appeal to students and professionals in the philosophy and history of science, and biology.
Download or read book Forms Souls and Embryos written by James Wilberding and published by Routledge. This book was released on 2016-07-15 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forms, Souls, and Embryos allows readers coming from different backgrounds to appreciate the depth and originality with which the Neoplatonists engaged with and responded to a number of philosophical questions central to human reproduction, including: What is the causal explanation of the embryo’s formation? How and to what extent are Platonic Forms involved? In what sense is a fetus ‘alive,’ and when does it become a human being? Where does the embryo’s soul come from, and how is it connected to its body? This is the first full-length study in English of this fascinating subject, and is a must-read for anyone interested in Neoplatonism or the history of medicine and embryology.
Download or read book Bioethics and the New Embryology written by Scott F. Gilbert and published by Macmillan. This book was released on 2005-06-24 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This brief textbook of human development covers the events of fertilization, gestation, and sex determination, followed by descriptions of the science of cloning, stem cells, and genome sequencing. The chapter covering the science is juxtaposed with a chapter discussing ethical questions that arise, such as when does life begin, should assisted reproductive technologies be regulated, and should parents be allowed to choose their child's sex"--Provided by publisher.
Download or read book Embryology Epigenesis and Evolution written by Jason Scott Robert and published by Cambridge University Press. This book was released on 2004-03-04 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, philosophers of biology have tended to sidestep the problem of development by focusing primarily on evolutionary biology and, more recently, on molecular biology and genetics. Quite often too, development has been misunderstood as simply, or even primarily, a matter of gene activation and regulation. Nowadays a growing number of philosophers of science are focusing their analyses on the complexities of development, and in Embryology, Epigenesis and Evolution Jason Scott Robert explores the nature of development against current trends in biological theory and practice and looks at the interrelations between development and evolution (evo-devo), an area of resurgent biological interest. Clearly written, this book should be of interest to students and professionals in the philosophy of science and the philosophy of biology.
Download or read book The Meaning of Evolution written by Robert J. Richards and published by University of Chicago Press. This book was released on 2009-02-02 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Did Darwin see evolution as progressive, directed toward producing ever more advanced forms of life? Most contemporary scholars say no. In this challenge to prevailing views, Robert J. Richards says yes—and argues that current perspectives on Darwin and his theory are both ideologically motivated and scientifically unsound. This provocative new reading of Darwin goes directly to the origins of evolutionary theory. Unlike most contemporary biologists or historians and philosophers of science, Richards holds that Darwin did concern himself with the idea of progress, or telos, as he constructed his theory. Richards maintains that Darwin drew on the traditional embryological meanings of the terms "evolution" and "descent with modification." In the 1600s and 1700s, "evolution" referred to the embryological theory of preformation, the idea that the embryo exists as a miniature adult of its own species that simply grows, or evolves, during gestation. By the early 1800s, however, the idea of preformation had become the concept of evolutionary recapitulation, the idea that during its development an embryo passes through a series of stages, each the adult form of an ancestor species. Richards demonstrates that, for Darwin, embryological recapitulation provided a graphic model of how species evolve. If an embryo could be seen as successively taking the structures and forms of its ancestral species, then one could see the evolution of life itself as a succession of species, each transformed from its ancestor. Richards works with the Origin and other published and archival material to show that these embryological models were much on Darwin's mind as he considered the evidence for descent with modification. Why do so many modern researchers find these embryological roots of Darwin's theory so problematic? Richards argues that the current tendency to see evolution as a process that is not progressive and not teleological imposes perspectives on Darwin that incorrectly deny the clearly progressive heart of his embryological models and his evolutionary theory.
Download or read book Icons of Life written by Lynn Morgan and published by Univ of California Press. This book was released on 2009-09-09 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Icons of Life tells the engrossing and provocative story of an early twentieth-century undertaking, the Carnegie Institution of Washington's project to collect thousands of embryos for scientific study. Lynn M. Morgan blends social analysis, sleuthing, and humor to trace the history of specimen collecting. In the process, she illuminates how a hundred-year-old scientific endeavor continues to be felt in today's fraught arena of maternal and fetal politics. Until the embryo collecting project-which she follows from the Johns Hopkins anatomy department, through Baltimore foundling homes, and all the way to China-most people had no idea what human embryos looked like. But by the 1950s, modern citizens saw in embryos an image of "ourselves unborn," and embryology had developed a biologically based story about how we came to be. Morgan explains how dead specimens paradoxically became icons of life, how embryos were generated as social artifacts separate from pregnant women, and how a fetus thwarted Gertrude Stein's medical career. By resurrecting a nearly forgotten scientific project, Morgan sheds light on the roots of a modern origin story and raises the still controversial issue of how we decide what embryos mean.
Download or read book August Weismann written by Frederick B. Churchill and published by Harvard University Press. This book was released on 2015-06-09 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolutionist Ernst Mayr considered August Weismann “one of the great biologists of all time.” Yet the man who formulated the germ plasm theory—that inheritance is transmitted solely through the nuclei of the egg and sperm cells—has not received an in-depth historical examination. August Weismann reintroduces readers to a towering figure in the life sciences. In this first full-length biography, Frederick Churchill situates Weismann in the swirling intellectual currents of his era and demonstrates how his work paved the way for the modern synthesis of genetics and evolution in the twentieth century. In 1859 Darwin’s tantalizing new idea stirred up a great deal of activity and turmoil in the scientific world, to a large extent because the underlying biological mechanisms of evolution through natural selection had not yet been worked out. Weismann’s achievement was to unite natural history, embryology, and cell biology under the capacious dome of evolutionary theory. In his major work on the germ plasm (1892), which established the material basis of heredity in the “germ cells,” Weismann delivered a crushing blow to Lamarck’s concept of the inheritance of acquired traits. In this deeply researched biography, Churchill explains the development of Weismann’s pioneering work based on cytology and embryology and opens up an expanded history of biology from 1859 to 1914. August Weismann is sure to become the definitive account of an extraordinary life and career.
Download or read book Veterinary Embryology written by T. A. McGeady and published by John Wiley & Sons. This book was released on 2013-07-08 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough appreciation of the cellular, molecular and tissue changes which precede the birth of an animal is a fundamental requirement for understanding normal structural development and also abnormal processes which result in congenital defects. This textbook provides information relevant to many subjects taught in preclinical, paraclinical and clinical years. Early chapters describe and explain sequential events relating to the division, growth and differentiation of cells and to the formation of foetal membranes, implantation and placentation. Succeeding chapters trace the origin, growth, development and maturation of the major body systems. Age determination of the embryo and foetus is reviewed in a single chapter. Genetic, chromosomal and environmental factors which adversely affect pre-natal development are reviewed in the final chapter. A reading list at the end of each chapter offers additional sources of information on the topics discussed. Tables, flow diagrams and numerous hand-drawn illustrations provide information in a form which complements the concepts presented in the text. Key features: Written by a team which includes members with expertise in developmental anatomy, molecular biology and clinical aspects of veterinary medicine. The authors have extensive experience in the teaching of veterinary embryology and cognate subjects. Illustrations, hand-drawn by a veterinary graduate, are used extensively to explain organogenesis and system development. An explanatory glossary provides concise information on specialised terms used in the text. The index is designed for easy retrieval of information.
Download or read book Microbial Evolution written by Howard Ochman and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteria have been the dominant forms of life on Earth for the past 3.5 billion years. They rapidly evolve, constantly changing their genetic architecture through horizontal DNA transfer and other mechanisms. Consequently, it can be difficult to define individual species and determine how they are related. Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Biology examines how bacteria and other microbes evolve, focusing on insights from genomics-based studies. Contributors discuss the origins of new microbial populations, the evolutionary and ecological mechanisms that keep species separate once they have diverged, and the challenges of constructing phylogenetic trees that accurately reflect their relationships. They describe the organization of microbial genomes, the various mutations that occur, including the birth of new genes de novo and by duplication, and how natural selection acts on those changes. The role of horizontal gene transfer as a strong driver of microbial evolution is emphasized throughout. The authors also explore the geologic evidence for early microbial evolution and describe the use of microbial evolution experiments to examine phenomena like natural selection. This volume will thus be essential reading for all microbial ecologists, population geneticists, and evolutionary biologists.
Download or read book Essentials of Domestic Animal Embryology written by Poul Hyttel and published by Elsevier Health Sciences. This book was released on 2009-09-23 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essentials of Domestic Animal Embryology is a comprehensive, modern treatment of the subject dealing with all organ systems and including important molecular aspects of animal development. Written with the student in mind, the text covers embryology of the domestic species, both general (development from formation of the gametes, through fertilization and initial embryogenesis, up to organ formation) and special (development of the organ systems). It also includes sections on teratology, assisted reproduction technologies, societal relevance, and the implications for current veterinary practice of a long-established science. Students of veterinary medicine, animal science, biomedical sciences and biotechnology, at both undergraduate and graduate stages of their careers, will find this volume essential for their needs. The international experience of the authors has been applied to produce a textbook of international relevance, likely to remain an important resource for many years to come. - Succinct and accessible - 300 high-quality colour illustrations - Written for undergraduates and invaluable for graduates wishing to brush up
Download or read book Atlas of Comparative Invertebrate Embryology written by Martin E. L. Scriba and published by . This book was released on 2015 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Embryogenesis Explained written by Natalie K Gordon and published by World Scientific. This book was released on 2016-09-15 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: The greatest mystery of life is how a single fertilized egg develops into a fully functioning, sometimes conscious multicellular organism. Embryogenesis Explained offers a new theory of how embryos build themselves, and combines simple physics with the most recent biochemical and genetic breakthroughs, based on the authors' prediction and then discovery of differentiation waves. They explain their ideas in a form accessible to the lay person and a broad spectrum of scientists and engineers. The diverse subjects of development, genetics and evolution, and their physics, are brought together to explain this major, previously unanswered scientific question of our time.As a follow up on The Hierarchical Genome, this book is a shorter but conceptually expanded work for the reader who is interested in science. It is useful as a starting point for the curious layman or the scientist or professional encountering the problem of embryogenesis without the formal biology background. There is also material useful for the seasoned biologist caught up in the new rush of information about the role of mechanics in developmental biology and cellular level mechanics in medicine.
Download or read book Basic Sciences for Obstetrics and Gynaecology Core Material for MRCOG Part 1 written by Austin Ugwumadu and published by Oxford University Press. This book was released on 2014 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book helps doctors to learn the basic sciences for obstetrics and gynaecology and to pass the MRCOG Part 1 exam by extending the reader's knowledge and understanding of the basic medical sciences and their relevance to obstetrics and gynaecology.
Download or read book A History of Embryology written by Joseph Needham and published by Cambridge University Press. This book was released on 2015-01-29 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1959, this book describes the Western history of embryology from prehistoric concepts of foetal growth to the close of the eighteenth century.
Download or read book A Conceptual History of Modern Embryology written by Scott F. Gilbert and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Glory to the science of embryology!" So Johannes Holtfreter closed his letter to this editor when he granted permission to publish his article in this volume. And glory there is: glory in the phenomenon of animals developing their complex morphologies from fertilized eggs, and glory in the efforts of a relatively small group of scientists to understand these wonderful events. Embryology is unique among the biological disciplines, for it denies the hegemony of the adult and sees value (indeed, more value) in the stages that lead up to the fully developed organism. It seeks the origin, and not merely the maintenance, of the body. And if embryology is the study of the embryo as seen over time, the history of embryology is a second-order derivative, seeing how the study of embryos changes over time. As Jane Oppenheimer pointed out, "Sci ence, like life itself, indeed like history, itself, is a historical phenomenon. It can build itself only out of its past. " Thus, there are several ways in which embryology and the history of embryology are similar. Each takes a current stage of a developing entity and seeks to explain the paths that brought it to its present condition. Indeed, embryology used to be called Entwicklungsgeschichte, the developmental history of the organism. Both embryology and its history interpret the interplay between internal factors and external agents in the causation of new processes and events.
