Download or read book The Biology of Twinning in Man written by M. G. Bulmer and published by Clarendon Press. This book was released on 1970 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twins are probably by no means unknown to most people - for instance in the sporting world of my Australian homeland there are quite a number of cases of note - yet very few people understand the biology behind twins. Although this book suffers a good deal from its age - people like Tim Flannery, Tom McMahon, John Rushton, and Michael Laker clearly give evidence that there is something much more "designed" than randomness involved in dizygotic twin frequencies around the world - if you want a basic introduction to the facts about twinning in humans you will get it here without any doubt. Bulmer deals with every aspects of twinning from the frequency of twinning in humans to the liabilities mothers of twins face vis-à-vis those of single children. He also goes into less common detail about the extreme difficulties of higher order multiple births - and provides little-known but easily understandable details about their frequency. Bulmer shows that for most of human history mothers of twins were at huge disadvantages both in terms of their much greater health risks and the low birth mass and short gestation of their children. For this reason, Bulmer shows that only when major health improvements were made could twins compete with singleton children, and he shows this had and has major consequences culturally. Another very interesting sidelight is Bulmer's look at how single birthing evolved as the most productive strategy in humans and other primates (except for the primitive tree shrews). Bulmer compares this with the situation in animals that typically give birth to multiple young. He should, however, have looked at the environmental conditions that encourage singleton births and compare with those animals that give birth to multiple, highly precocial offspring. All in all, though it is certainly dated, "Biology of Twinning in Man" is a simple and useful overview of what most people should know about multiple births in humans.
Download or read book Twin and Higher order Pregnancies written by Asma Khalil and published by Springer Nature. This book was released on 2021-12-02 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive update on the management of multiple pregnancy, which is becoming more common, and is associated with increased maternal and perinatal mortality and morbidity. Offering a practical guide and a wealth of videos, images and illustrations, the book will help clinicians to feel more confident when caring for women with multiple pregnancy. Its main objectives are: To increase the level of knowledge of healthcare professionals involved in the care of these women; To update their knowledge in keeping with the recommendations of the latest national and international guidelines; and To promote a multidisciplinary approach to the management of women with multiple pregnancy.
Download or read book The Biology of Twins mammals written by Horatio Hackett Newman and published by . This book was released on 1917 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Francis Galton written by Michael Bulmer and published by JHU Press. This book was released on 2004-12-01 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: If not for the work of his half cousin Francis Galton, Charles Darwin's evolutionary theory might have met a somewhat different fate. In particular, with no direct evidence of natural selection and no convincing theory of heredity to explain it, Darwin needed a mathematical explanation of variability and heredity. Galton's work in biometry—the application of statistical methods to the biological sciences—laid the foundations for precisely that. This book offers readers a compelling portrait of Galton as the "father of biometry," tracing the development of his ideas and his accomplishments, and placing them in their scientific context. Though Michael Bulmer introduces readers to the curious facts of Galton's life—as an explorer, as a polymath and member of the Victorian intellectual aristocracy, and as a proponent of eugenics—his chief concern is with Galton's pioneering studies of heredity, in the course of which he invented the statistical tools of regression and correlation. Bulmer describes Galton's early ambitions and experiments—his investigations of problems of evolutionary importance (such as the evolution of gregariousness and the function of sex), and his movement from the development of a physiological theory to a purely statistical theory of heredity, based on the properties of the normal distribution. This work, culminating in the law of ancestral heredity, also put Galton at the heart of the bitter conflict between the "ancestrians" and the "Mendelians" after the rediscovery of Mendelism in 1900. A graceful writer and an expert biometrician, Bulmer details the eventual triumph of biometrical methods in the history of quantitative genetics based on Mendelian principles, which underpins our understanding of evolution today.
Download or read book Deliberately Divided written by Nancy L. Segal and published by Rowman & Littlefield. This book was released on 2021-11-08 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 2022 Choice Reviews Outstanding Academic Title Takes the first in-depth look at the New York City adoption agency that separated twins and triplets in the 1960s, and the controversial and disturbing study that tracked the children’s development while never telling their adoptive parents that they were raising a “singleton twin.” In the early 1960s, the head of a prominent New York City Child Development Center and a psychiatrist from Columbia University launched a study designed to track the development of twins and triplets given up for adoption and raised by different families. The controversial and disturbing catch? None of the adoptive parents had been told that they were raising a twin—the study’s investigators insisted that the separation be kept secret. Here, Nancy Segal reveals the inside stories of the agency that separated the twins, and the collaborating psychiatrists who, along with their cadre of colleagues, observed the twins until they turned twelve. This study, far outside the mainstream of scientific twin research, was not widely known to scholars or the general public until it caught the attention of documentary filmmakers whose recent films, Three Identical Strangers and The Twinning Reaction,left viewers shocked, angered, saddened and wanting to know more. Interviews with colleagues, friends and family members of the agency’s psychiatric consultant and the study’s principal investigator, as well as a former agency administrator, research assistants, journalists, ethicists, attorneys, and—most importantly--the twins and their families who were unwitting participants in this controversial study, are riveting. Through records, letters and other documents, Segal further discloses the investigators’ attempts to engage other agencies in separating twins, their efforts to avoid media exposure, their worries over informed consent issues in the 1970s and the steps taken toward avoiding lawsuits while hoping to enjoy the fruits of publication. Segal's spellbinding stories of the twins’ separation, loss and reunion offers readers the behind-the-scenes details that, until now, have been lost to the archives of history.
Download or read book Born Together Reared Apart written by Nancy L. Segal and published by Harvard University Press. This book was released on 2012-06-18 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Minnesota Study of Twins Reared Apart startled scientists by demonstrating that twins reared apart are as alike, across a number of personality traits and other measures, as those raised together, suggesting that genetic influence is pervasive. Segal offers an overview of the study’s scientific contributions and effect on public consciousness.
Download or read book Developmental and Fetal Origins of Differences in Monozygotic Twins written by Alexandra Matias and published by Academic Press. This book was released on 2020-05-15 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developmental and Fetal Origins of Differences in Monozygotic Twins: From Genetics to Environmental Factors examines the major causes of discordance in monozygotic twins, from genetic, to environmental influences, including discussions on the genetic, epigenetic, fetal and environmental factors. Twin differences discussed include malformations, deformations and disruptions secondary to inequitable division of the early embryo, chromosome and single gene mosaicism, Nonrandom X chromosome inactivation, mitochondrial heteroplasmy, epigenetic variation, and variable and inequitable blood supply, among other influences. Differences in hemoglobin levels, placentation and amniotic fluid are also examined, while full color images illustrate discordant anomalies and twin differences throughout. Examines the major causes of discordance in monozygotic twins and their relevance for future studies and clinical management Discusses NIPT in MZ twins, twin imaging during fetal development, blood tests and forensic analysis Features contributions from international experts in twin genetics and developmental biology
Download or read book An Atlas of Human Blastocysts written by Lucinda L. Veeck and published by CRC Press. This book was released on 2003-03-28 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing information from the cutting edge of reproductive technology, this full-color atlas vividly illustrates the typical and atypical morphology of human blastocysts collected and cultured during the course of in vitro fertilization treatments. The narrative and the illustrations detail a variety of new reproductive technologies. All photographs are supported by detailed legends and a glossary of terms is included. This atlas is edited by two world-class embryologists both of whom work at the Center for Reproductive Medicine and Infertility at the Weill Medical College of Cornell University.
Download or read book Manual of Benirschke and Kaufmann s Pathology of the Human Placenta written by Rebecca N Baergen and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based upon the gold standard textbook currently in its fourth edition. User-friendly and easy to reference information tables that pinpoint specific pages in text for further reading and reference. Easy access to differential diagnosis of various lesions. Bold type indicates important lesions, diseases and concepts – Italicized text provides the definitions. Shaded "Suggestions for Examinations and Report" section includes key points in gross examinations, sectioning and diagnosis. Over 350 illustrations, more than 140 of them in full-color. Written for general pathologists and pathologists-in-training.
Download or read book Textbook of Perinatal Medicine written by Asim Kurjak and published by JP Medical Ltd. This book was released on 2015-05-31 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two volume set is a comprehensive guide to perinatal medicine for practicing gynaecologists. Divided into 20 sections, it begins with Neonatology, followed by Ethical and Legal issues, Ultrasound, Physiology, Early Pregnancy, Intrauterine Growth, and Infectious Disease amongst other topics. Contributions from multidisciplinary experts guide physicians through the developments in diagnosis and treatment of the mother, foetus and neonate, improving the quality of life and long-term outcomes of patients. All recent developments are presented with recommendations for safe and effective diagnostic and therapeutic interventions in both maternal-foetal medicine and neonatology, making the Textbook of Perinatal Medicine an indispensable resource for obstetricians and gynaecologists. Key Points Comprehensive guide to key topics and advances in perinatal medicine Provides recommendations for safe and effective diagnosis and treatment Internationally recognised editor and author team Highly illustrated with full colour images and tables throughout
Download or read book NIDA Research Monograph written by and published by . This book was released on 1976 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Culture Media Solutions and Systems in Human ART written by Patrick Quinn and published by Cambridge University Press. This book was released on 2014-03-27 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes culture media and solutions used in human ART; how they have been developed for in vitro human pre-implantation embryo development, the function and importance of the various components in media and solutions and how they interact, and how the systems in which these are used can influence outcomes. Chapters discuss inorganic solutes, energy substrates, amino acids, macromolecules, cytokines, growth factors, buffers, pH, osmolality, and the interaction of these parameters. The role of incubators and other physical factors are reviewed, along with the relevance and prospects of emerging technologies: morphokinetic analysis using time-lapse imaging and dynamic fluid incubation systems. Results of prospective randomized trials are emphasized to ascertain the added value of these techniques for selecting viable embryos. This comprehensive guide will be invaluable for embryologists, physicians and all personnel involved in the fluid products used in human ART seeking to optimize their successful use of these components.
Download or read book Manual of Pathology of the Human Placenta written by Rebecca N Baergen and published by Springer Science & Business Media. This book was released on 2011-01-06 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual of Pathology of the Human Placenta, Second Edition is a concise, practical manual of placental pathology. While references are made to the more encyclopedic Pathology of the Human Placenta, this Manual is designed as a user-friendly, easy-to-read bench manual that can be used in the grossing room as well as at the microscope. Features of the text include:- A section on the approach to the placental specimen, providing suggestions on what to do, as well as when and how to do it.- Discussion of detailed development and normal histology of all parts of the placenta for those wanting to learn about specific areas of the placenta.- Discussion of placental lesions, disease processes related to the placenta, neoplasms, and trophoblastic lesions. An overview of the legal implications of placental examination and future direction. "Suggestions for Examination and Report" includes key points in gross examination, sectioning, and diagnosis. Suggestions for comments in the surgical pathology report guide the reader in problematic situations or when the diagnosis or diagnostic implications are unclear.An abundance of tables summarize pertinent information and provide easy access to the differential diagnoses of various lesions. Manual of Pathology of the Human Placenta is a must-have reference for every pathologist, resident and pathology assistant.
Download or read book Human Adult Odontometrics written by Julius A. Kieser and published by Cambridge University Press. This book was released on 1990-06-28 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: An appreciation of the genetic and environmental determinants of tooth size is fundamental to an understanding of the metric variation of teeth in humans. Thus, besides imparting a sound knowledge of the theories of dental inheritance, development and evolution, this book has an important role in demonstrating the diverse practical applications of odontometrics. A particular feature of the book is the inclusion of numerous tables which bring together a vast body of information on tooth size in different population groups. Students of oral biology, orthodontics, physical anthropology, human biology, forensic science and archaeology will find this work of great value as a text and reference source. As Professor Phillip Tobias writes in the foreword, 'The breadth of Dr Kieser's reading, and his mastery of a staggering array of anthropological, evolutionary, embryological, orthodontic and statistical concepts shine through every page of this work'.
Download or read book The Physiology of Twinning written by Horatio Hackett Newman and published by . This book was released on 1923 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Avery s Diseases of the Newborn E Book written by Christine A. Gleason and published by Elsevier Health Sciences. This book was released on 2017-11-21 with total page 2021 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the evaluation and management of every key disease and condition affecting newborns, Avery's Diseases of the Newborn, by Drs. Christine A. Gleason and Sandra E. Juul, remains your #1 source for practical, clinically relevant information in this fast-changing field. You'll find the specific strategies you need to confidently diagnose and treat this unique patient population, in a full-color, easy-to-use single volume that focuses on key areas of practice. Now in a thoroughly revised 10th Edition, this highly respected reference is an authoritative clinical resource for neonatal practitioners. - Provides up-to-date information on every aspect of newborn evaluation and management in a new, visually improved format featuring more than 500 all-new, full-color illustrations integrated within each chapter - Includes greatly expanded Neurology and Hematology sections that highlight the knowledge and expertise of new co-editor, Dr. Sandra E. Juul - Features all-new chapters on Palliative Care, Gastroesophageal Reflux, Platelet Disorders, Transfusion Therapy, Hypertension, , and The Ear and Hearing Disorders, as well as expanded coverage of brain injury and neuroprotective strategies in the preterm and term infant - Contains new Key Points boxes at the beginning of every chapter - Brings you up to date on current topics such as the evolving epidemic of neonatal abstinence syndrome and the new clinical uses of ultrasound (including ultrasound videos online) - Expert ConsultTM eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, and references from the book on a variety of devices - Provides up-to-date information on every aspect of newborn evaluation and management in a new, visually improved format featuring more than 500 all-new, full-color illustrations integrated within each chapter. - Includes greatly expanded Neurology and Hematology sections that highlight the knowledge and expertise of new co-editor, Dr. Sandra E. Juul. - Features all-new chapters on Palliative Care, Gastroesophageal Reflux, Platelet Disorders, Transfusion Therapy, Hypertension, , and The Ear and Hearing Disorders, as well as expanded coverage of brain injury and neuroprotective strategies in the preterm and term infant. - Contains new Key Points boxes at the beginning of every chapter. - Brings you up to date on current topics such as the evolving epidemic of neonatal abstinence syndrome and the new clinical uses of ultrasound (including ultrasound videos online). - Expert ConsultTM eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, and references from the book on a variety of devices.
Download or read book Principles Practice of Assisted Reproductive Technology 3 Vols written by Kamini Rao and published by JP Medical Ltd. This book was released on 2013-09-30 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three volume set is a comprehensive guide to Assisted Reproductive Technology (ART) for clinicians. Volume one begins with an introduction to infertility, describing physiology, endocrinology and infertility in both men and women. The following sections provide in depth discussion on ART, from ovulation induction and intrauterine insemination, to complications, outcomes and ethical issues. The second volume is dedicated to In Vitro Fertilisation (IVF) and related procedures, whilst volume three is an atlas of embryology. This practical manual is an invaluable reference for clinicians specialising in infertility management and includes nearly 1000 full colour photographs, each with a brief description to enhance understanding. Key points Three volume set – complete guide to ART Each volume dedicated to specific topic – Infertility, IVF & Related Procedures, and Atlas of Embryology Includes nearly 1000 photographs with descriptions Invaluable reference for practising clinicians
