Download or read book The Twin Test written by Rula Sinara and published by Harlequin. This book was released on 2018-05-01 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: His twins might be wild... But she knows just how to tame them—and their father Earthquake expert Dax Calder brings his eleven-year-old twins to the Serengeti to fulfill a promise to his late wife—never leave the girls. Meeting free-spirited teacher Pippa Harper feels like serendipity. She’s the perfect nanny for his mischievous twosome, even if her definition of rules is slightly different than his. But there’s one rule Dax never expected to break…falling in love again.
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 Measurements of Twins written by Edward Lee Thorndike and published by . This book was released on 1905 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heredity Environment and Personality written by John C. Loehlin and published by University of Texas Press. This book was released on 1976-06-01 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reports on a study of 850 pairs of twins who were tested to determine the influence of heredity and environment on individual differences in personality, ability, and interests. It presents the background, research design, and procedures of the study, a complete tabulation of the test results, and the authors’ extensive analysis of their findings. Based on one of the largest studies of twin behavior conducted in the twentieth century, the book challenges a number of traditional beliefs about genetic and environmental contributions to personality development. The subjects were chosen from participants in the National Merit Scholarship Qualifying Test of 1962 and were mailed a battery of personality and interest questionnaires. In addition, parents of the twins were sent questionnaires asking about the twins’ early experiences. A similar sample of nontwin students who had taken the merit exam provided a comparison group. The questions investigated included how twins are similar to or different from nontwins, how identical twins are similar to or different from fraternal twins, how the personalities and interests of twins reflect genetic factors, how the personalities and interests of twins reflect early environmental factors, and what implications these questions have for the general issue of how heredity and environment influence the development of psychological characteristics. In attempting to answer these questions, the authors shed light on the importance of both genes and environment and form the basis for different approaches in behavior genetic research.
Download or read book Someone Else s Twin written by Nancy L. Segal and published by Prometheus Books. This book was released on 2011-07-19 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combination of a riveting true story and cutting-edge twin research makes this book an irresistible page-turner. Identical twins Begoña and Delia were born thirty-eight years ago in Spain’s Canary Islands. Due to chaotic conditions at the hospital or simple human error, the unthinkable happened: Delia was unintentionally switched with another infant in the baby nursery. This fascinating story describes in vivid detail the consequences of this unintentional separation of identical twin sisters. The author considers not only the effects on these particular sisters, but the important implications of this and similar cases for questions concerning identity, familial bonds, nature-nurture, and the law.
Download or read book Twins written by Horatio Hackett Newman and published by . This book was released on 1968 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twins written by Peter Watson and published by Viking Adult. This book was released on 1982 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Identical twins provide a unique opportunity for human genetic research: two individuals who are genetically the same, and who differences must be due to their environment. The ultimate experiment for such research is the study of identical twins who were separated at birth and reared in completely different homes, but while identical twins are scarce, those adopted into different families are rarer still. Now scientists at the University of Minnesota have discovered sixteen such pairs of siblings, and the results of their inquiries have stirred worldwide interest. For the lives of these twins reveal startling coincidences: twins who bought the same make of diary the same (and only) year and filled in entries for the same dates; twins who drove identical cars across the country each year to vacation at the same small beach in Florida; twins who arrived at the study center in Minneapolis and found each other wearing exactly the same clothes -- or the same jewelry. Telepathy? A 'spooky' bond between twins? Or just plain coincidence? Peter Watson relates the findings of the Minnesota study and explores the mathematical probability of the twins' similarities to see just how unusual they actually are. He also examines other twin research being conducted throughout the world, all of which raises a vital question: Are we subject to a genetic determinism that is stronger than any external influence? The answer is as yet unknown, but it appears that the role of genetics is far greater that had been thought. Twins is a provocative investigation of research that has implications for us all."--Jacket.
Download or read book Test Of The Twins written by Tracy Weis Margaret & Hickman and published by . This book was released on 1986 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagnosis of Twin Zygosity by Means of Discriminant Analysis of Personality Test Items written by Elsie Hashimoto Ahern and published by . This book was released on 1972 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A twin study with the perceptual maze test written by A. Elithorn and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twins as a Tool of Behavioral Genetics written by T. J. Bouchard and published by . This book was released on 1993 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twins as a Tool of Behavioral Genetics Edited by T. J. Bouchard, Jr. P. Propping Every human being is genetically unique and consequently genetically different from every other human being. The one exception is identical (monozygotic) twins, who share exactly the same genome. Fraternal (dizygotic) twins share half of their genes in common by descent. Twins of both types constitute "an experiment of nature". Because it is unethical to carry out powerful experiments on human beings in order to explore the causes of variation in human traits, this natural experiment with all of its vicissitudes is one of the few windows we have with which to view the genetic and environmental determinants of complex human behavioral traits. Many scientists believe that twins can only be used to estimate "heritability" and that they reveal nothing about how genes influence behavior. In addition, they argue that modern molecular genetics will quickly make twin research obsolete. These widely held views are largely incorrect. Twins are a unique and very powerful tool for exploring a wide variety of hypotheses about both the distal (mostly genetic) and proximal (mostly environmental) origins of human individual differences. Scientific knowledge accumulates most rapidly when scientists ask the right questions and utilize the right tools—the right tools for the job. This book attempts to highlight the questions that might be most productively addressed through the use of twin designs. Every tool, however, has its limitations. This book carefully examines the limitations and assumptions associated with the application of the method to each of the domains discussed. Goal of this Dahlem Workshop: to evaluate the environmental and genetic mechanisms underlying the structure and development of behavior in twins studies: the achievements, limitations, and potentials.
Download or read book Twins Black and White written by Robert Travis Osborne and published by Foundation for Human Understanding (GA). This book was released on 1980 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chimerism written by Nicole L. Draper and published by Springer. This book was released on 2018-06-21 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides a comprehensive, up-to-date review of chimerism. The first part of the volume presents the causes of chimerism, specifically focusing on fertilization and early embryonic errors, pregnancy and multiple gestations, and transplantation and transfusion. The second part of the volume outlines clinical identification and consequences of chimerism. Chapters in this section focus on the effects of chimerism on testing in relationship determination and forensics, prenatal genetic testing and screening, and blood and HLA typing. This part also reviews new data concerning matching donors and recipients for transplantation, while outlining the risks of transplantation, such as graft-vs-host disease and passenger lymphocyte syndrome. Additionally, evidence on the role of chimerism in autoimmune disease and cancer is presented. Written by experts in the field, Chimerism: A Clinical Guide is a valuable resource for clinicians and researchers that will help guide patient management and stimulate investigative efforts.
Download or read book Oogenesis written by Giovanni Coticchio and published by Springer Science & Business Media. This book was released on 2012-11-13 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oocyte is the largest and most mysterious cell in the body of mammalian organisms. Through its growth and maturation, it reaches extreme levels of specialization, while maintaining at the same time a condition of totipotency. Its unique ability, in co-operation with the spermatozoon, to give rise to a fully developed organism formed from hundreds of different tissues and myriads of individual cells has inspired intellectuals of all ages. Oogenesis finds impetus and purpose in casting scientific perspective towards this unique cell for the benefit of scientists and assisted reproductive technology (ART) specialists. The authors of the chapters are distinguished authorities in their respective areas of competence. From the opening of the book the reader is lead on a fantastic voyage from the formation of the primordial oocyte to the development of the early embryo, passing through crucial processes of oogenesis, such as co-ordination of oocyte and follicle growth, gene expression and organelle reorganization during growth and maturation, epigenetic mechanisms, regulation of meiosis, totipotency, cell polarity, oogenesis in vitro and maternal regulation of early development.
Download or read book Identical Twins Reared Apart written by Susan L. Farber and published by . This book was released on 1981-03-05 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews and evaluates psychological studies of separately raised identical twins and suggests which aspects of human experience are largely shaped by one's heredity.
Download or read book Twin Study written by Stacey Richter and published by Catapult. This book was released on 2008-05-28 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the sense that all stories have been written before, a truly startling piece of fiction may be the greatest literary feat possible. Enter Stacey Richter, a virtuoso contender for that very prize, whose offbeat characters manage to toe the line between eccentricity and banal daily life. Each story is organized around a pair of characters, and these characters are permitted to reach their full bizarre potential against mundane backdrops. The result is fiction that drives toward a place of surreal revelation, in these sometimes disturbing, often funny, short pieces. In Twin Study, Richter beautifully captures — albeit through unlikely exemplars — the essential experience of humanity.
Download or read book Methodology for Genetic Studies of Twins and Families written by M. Neale and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few would dispute the truth of the statement `People are Different', but there is much controversy over why. This book authoritatively explains the methods used to understand human variation, and extends them far beyond the primary `nature or nurture' question. After chapters on basic statistics, biometrical genetics, matrix algebra and path analysis, there is a state-of-the-art account of how to fit genetic models using the LISREL package. The authors explain not only the assumptions of the twin method, but how to test them. The elementary model is expanded to cover sex limitation, sibling interaction, multivariate and longitudinal data, observer ratings, and twin-family studies. Throughout, the methods are illustrated by applications to diverse areas such as obesity, major depression, alcohol comsumption, delinquency, allergies, and common fears.
