Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Embryos under the Microscope PDF full book. Access full book title Embryos under the Microscope by Jane Maienschein. Download full books in PDF and EPUB format.
Author: Jane Maienschein Publisher: Harvard University Press ISBN: 0674369734 Category : Science Languages : en Pages : 349
Book Description
Too tiny to see with the naked eye, the human embryo was just a hypothesis until the microscope made observation of embryonic development possible. This changed forever our view of the minuscule cluster of cells that looms large in questions about the meaning of life. Embryos under the Microscope examines how our scientific understanding of the embryo has evolved from the earliest speculations of natural philosophers to today’s biological engineering, with its many prospects for life-enhancing therapies. Jane Maienschein shows that research on embryos has always revealed possibilities that appear promising to some but deeply frightening to others, and she makes a persuasive case that public understanding must be informed by up-to-date scientific findings. Direct observation of embryos greatly expanded knowledge but also led to disagreements over what investigators were seeing. Biologists confirmed that embryos are living organisms undergoing rapid change and are not in any sense functioning persons. They do not feel pain or have any capacity to think until very late stages of fetal development. New information about DNA led to discoveries about embryonic regulation of genetic inheritance, as well as evolutionary relationships among species. Scientists have learned how to manipulate embryos in the lab, taking them apart, reconstructing them, and even synthesizing—practically from scratch—cells, body parts, and maybe someday entire embryos. Showing how we have learned what we now know about the biology of embryos, Maienschein changes our view of what it means to be alive.
Author: Jane Maienschein Publisher: Harvard University Press ISBN: 0674369734 Category : Science Languages : en Pages : 349
Book Description
Too tiny to see with the naked eye, the human embryo was just a hypothesis until the microscope made observation of embryonic development possible. This changed forever our view of the minuscule cluster of cells that looms large in questions about the meaning of life. Embryos under the Microscope examines how our scientific understanding of the embryo has evolved from the earliest speculations of natural philosophers to today’s biological engineering, with its many prospects for life-enhancing therapies. Jane Maienschein shows that research on embryos has always revealed possibilities that appear promising to some but deeply frightening to others, and she makes a persuasive case that public understanding must be informed by up-to-date scientific findings. Direct observation of embryos greatly expanded knowledge but also led to disagreements over what investigators were seeing. Biologists confirmed that embryos are living organisms undergoing rapid change and are not in any sense functioning persons. They do not feel pain or have any capacity to think until very late stages of fetal development. New information about DNA led to discoveries about embryonic regulation of genetic inheritance, as well as evolutionary relationships among species. Scientists have learned how to manipulate embryos in the lab, taking them apart, reconstructing them, and even synthesizing—practically from scratch—cells, body parts, and maybe someday entire embryos. Showing how we have learned what we now know about the biology of embryos, Maienschein changes our view of what it means to be alive.
Author: Gerd Steding Publisher: Karger Medical and Scientific Publishers ISBN: 3805583613 Category : Medical Languages : en Pages : 308
Book Description
The present anatomical atlas concentrates on the early weeks of prenatal development of the human embryo. It comprises more than 800 scanning electron-microscopic pictures of specimens of exclusively human embryos. The three-dimensional appearing illustrations show the development of the external form of the face, neck, trunk and limbs. Besides, the brain and the viscera of the head, neck, thorax, abdomen and pelvis all dissected into layers are represented in their position and spatial form. The juxtaposition of pictures of temporally close developmental stages reveals the changes in the form of the organs. Photographs of the same organic system are usually shown at the same magnification and clearly demonstrate the growth process. Simple outline drawings provided with the principal nomenclature facilitate the orientation within the specimens. A brief introduction to each chapter explains the most significant developmental steps depicted. This atlas is of great interest not only to anatomists, embryologists, histologists and developmental biologists, but also to biologists, biochemists and geneticists. Moreover, it serves as a valuable reference book for clinicians such as gynecologists, obstetricians, pediatric surgeons and pediatric cardiologists.
Author: Jane Maienschein Publisher: Harvard University Press ISBN: 0674040430 Category : Science Languages : en Pages : 359
Book Description
Saving lives versus taking lives: These are the stark terms in which the public regards human embryo research--a battleground of extremes, a war between science and ethics. Such a simplistic dichotomy, encouraged by vociferous opponents of abortion and proponents of medical research, is precisely what Jane Maienschein seeks to counter with this book. Whose View of Life? brings the current debates into sharper focus by examining developments in stem cell research, cloning, and embryology in historical and philosophical context and by exploring legal, social, and ethical issues at the heart of what has become a political controversy. Drawing on her experience as a researcher, teacher, and congressional fellow, Jane Maienschein provides historical and contemporary analysis to aid understanding of the scientific and social forces that got us where we are today. For example, she explains the long-established traditions behind conflicting views of how life begins--at conception or gradually, in the course of development. She prepares us to engage a major question of our day: How are we, as a 21st-century democratic society, to navigate a course that is at the same time respectful of the range of competing views of life, built on the strongest possible basis of scientific knowledge, and still able to respond to the momentous opportunities and challenges presented to us by modern biology? Maienschein's multidisciplinary perspective will provide a starting point for further attempts to answer this question.
Author: Lucy van de Wiel Publisher: NYU Press ISBN: 1479803626 Category : Social Science Languages : en Pages : 378
Book Description
Welcomed as liberation and dismissed as exploitation, egg freezing (oocyte cryopreservation) has rapidly become one of the most widely-discussed and influential new reproductive technologies of this century. In Freezing Fertility, Lucy van de Wiel takes us inside the world of fertility preservation—with its egg freezing parties, contested age limits, proactive anticipations and equity investments—and shows how the popularization of egg freezing has profound consequences for the way in which female fertility and reproductive aging are understood, commercialized and politicized. Beyond an individual reproductive choice for people who may want to have children later in life, Freezing Fertility explores how the rise of egg freezing also reveals broader cultural, political and economic negotiations about reproductive politics, gender inequities, age normativities and the financialization of healthcare. Van de Wiel investigates these issues by analyzing a wide range of sources—varying from sparkly online platforms to heart-breaking court cases and intimate autobiographical accounts—that are emblematic of each stage of the egg freezing procedure. By following the egg’s journey, Freezing Fertility examines how contemporary egg freezing practices both reflect broader social, regulatory and economic power asymmetries and repoliticize fertility and aging in ways that affect the public at large. In doing so, the book explores how the possibility of egg freezing shifts our relation to the beginning and end of life.
Author: James Mourilyan Tanner Publisher: Harvard University Press ISBN: 9780674306929 Category : Children Languages : en Pages : 298
Book Description
Here is a brief and authoritative account of human physical growth, beautifully written by one of the world's foremost experts. In Fetus into Man Professor Tanner tells the story of growth in language that is both accessible to the nonbiologist and acceptable to the biologist. The book begins with the basics of growth: cell division, hormonal control and differential growth of body tissues. It then builds on these basics to provide a picture of individual growth--from the fetus in utero to the development of sex differences at puberty. Tanner pays special attention along the way to the psychological and social problems faced by children who mature either too soon or too late, and he concludes with a full description of the major growth disorders and current methods of treatment. Fetus into Man will be an important reference for parents, educators, students of development, and indeed anyone who must deal with the growing child.
Author: Frank R. Lillie Publisher: Forgotten Books ISBN: 9780266256618 Category : Science Languages : en Pages : 68
Book Description
Excerpt from Laboratory Outlines for the Study of the Embryology of the Chick and the Pig The methods of study employed in the follow ing outlines are (1) Study of the living embryo. (2) Study of the entire embryo, (a) as an opaque object with the dissecting microscope; (b) with the compound microscope, after killing, harden ing, staining, clearing, and mounting. (3) Study of embryos by dissection, especially in later stages. (4) Study of serial sections with the microscope. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Kevin Coward Publisher: Cambridge University Press ISBN: 110727625X Category : Medical Languages : en Pages : 408
Book Description
The success of Assisted Reproductive Technology is critically dependent upon the use of well optimized protocols, based upon sound scientific reasoning, empirical observations and evidence of clinical efficacy. Recently, the treatment of infertility has experienced a revolution, with the routine adoption of increasingly specialized molecular biological techniques and advanced methods for the manipulation of gametes and embryos. This textbook – inspired by the postgraduate degree program at the University of Oxford – guides students through the multidisciplinary syllabus essential to ART laboratory practice, from basic culture techniques and micromanipulation to laboratory management and quality assurance, and from endocrinology to molecular biology and research methods. Written for all levels of IVF practitioners, reproductive biologists and technologists involved in human reproductive science, it can be used as a reference manual for all IVF labs and as a textbook by undergraduates, advanced students, scientists and professionals involved in gamete, embryo or stem cell biology.
Author: Isabelle Godin Publisher: Springer Science & Business Media ISBN: 0387335358 Category : Medical Languages : en Pages : 188
Book Description
This book collects articles on the biology of hematopoietic stem cells during embryonic development, reporting on fly, fish, avian and mammalian models. The text invites a comparative overview of hematopoietic stem cell generation in the different classes, emphasizing conserved trends in development. The book reviews current knowledge on human hematopoietic development and discusses recent breakthroughs of relevance to both researchers and clinicians.
Author: Thomas Muller-Reichert Publisher: Academic Press ISBN: 0124160263 Category : Science Languages : en Pages : 466
Book Description
The combination of electron microscopy with transmitted light microscopy (termed correlative light and electron microscopy; CLEM) has been employed for decades to generate molecular identification that can be visualized by a dark, electron-dense precipitate. This new volume of Methods in Cell Biology covers many areas of CLEM, including a brief history and overview on CLEM methods, imaging of intermediate stages of meiotic spindle assembly in C. elegans embryos using CLEM, and capturing endocytic segregation events with HPF-CLEM. Covers many areas of CLEM by the best international scientists in the field Includes a brief history and overview on CLEM methods
Author: Jane Maienschein
Author: Jane Maienschein
Author: Gerd Steding
Author: Jane Maienschein
Author: Lucy van de Wiel
Author: James Mourilyan Tanner
Author: Frank R. Lillie
Author: Kevin Coward
Author: Isabelle Godin
Author: André Verweij
Author: Thomas Muller-Reichert