Advertisement
| define immigration in biology: Migration Hugh Dingle, 2014 A broad, multi-specific overview of the physiology, ecology, and evolution of migration, discussing and analysing migration across a full taxonomic range of organisms from primitive plants to classic migrants such as butterflies, whales, and birds. |
| define immigration in biology: Diaspora: A Very Short Introduction Kevin Kenny, 2013-07-25 Diaspora: A Very Short Introduction examines the origins of diaspora as a concept, its changing meanings over time, its current popularity, and its utility in explaining human migration. The book proposes a flexible approach to diaspora based on examples drawn mainly from Jewish, African, Irish, and Asian history. |
| define immigration in biology: Animal Migration E.J. Milner-Gulland, John M. Fryxell, Anthony R.E. Sinclair, 2011-01-13 Migration is a fascinating phenomenon that can contribute to the fundamental structuring of ecosystems. This seminal volume synthesises insights from both mathematical modelling and empirical research in order to generate a unified understanding of the mechanisms underlying migration. |
| define immigration in biology: Plant Migration Jonathan D. Sauer, 1988-03-09 Using cases of plant migration documented by both historical and fossil evidence, Jonathan D. Sauer provides a landmark assessment of what is presently known, and not merely assumed, about the process. |
| define immigration in biology: Tracking Animal Migration with Stable Isotopes , 2008-04-09 Tracking Animal Migration with Stable Isotopes provides a consolidated overview of the current knowledge of stable isotopes in terrestrial migration research questions. It offers ecologists and conservation biologists provide a practical handbook for those considering using stable isotopes in their migration research. - Presents information for readers to understand how to apply isotopic methods for tracking - Critical information on areas for future research - Practical guidelines and discussions of sample collection, sample preparation, and data analysis - Enhanced understanding of data and statistical analysis in isotope-based studies of migratory animals |
| define immigration in biology: The Theory of Island Biogeography Robert H. MacArthur, Edward O. Wilson, 2001 Population theory. |
| define immigration in biology: Insect Ecology Timothy D. Schowalter, 2006-02-27 Dr. Timothy Schowalter has succeeded in creating a unique, updated treatment of insect ecology. This revised and expanded text looks at how insects adapt to environmental conditions while maintaining the ability to substantially alter their environment. It covers a range of topics- from individual insects that respond to local changes in the environment and affect resource distribution, to entire insect communities that have the capacity to modify ecosystem conditions.Insect Ecology, Second Edition, synthesizes the latest research in the field and has been produced in full color throughout. It is ideal for students in both entomology and ecology-focused programs.NEW TO THIS EDITION:* New topics such as elemental defense by plants, chaotic models, molecular methods to measure disperson, food web relationships, and more* Expanded sections on plant defenses, insect learning, evolutionary tradeoffs, conservation biology and more* Includes more than 350 new references* More than 40 new full-color figures |
| define immigration in biology: Bird Migration Peter Berthold, 2001 Ten years have passed since the first edition of this book. During that time the field of bird migration has experienced many advances which are reflected in this second edition. No other book exists to bring together the vast amount of information currently available on the subject of bird migration. Includes discussion of evolution and history of bird migration, physiology, orientation mechanisms and threats to migrations and is accessible to experts as well as amateurs. |
| define immigration in biology: Biogeography: A Very Short Introduction Mark V. Lomolino, 2020-07-23 Biogeography is the study of geographic variation in all characteristics of life - ranging from genetic, morphological and behavioural variation among regional populations of a species, to geographic trends in diversity of entire communities across our planet's sufrace. From the ancient hunters and gatherers to the earliest naturalists, Charles Darwin, Alfred Russel Wallace, and scientists today, the search for patterns in life has provided insights that proved invaluable for understanding the natural world. And many, if not most, of the compelling kaleidoscope of patterns in biological diversity make little sense unless placed in an explicit geographic context. The Very Short Introduction explains the historical development of the field of biogeography, its fundamental tenets, principles and tools, and the invaluable insights it provides for understanding the diversity of life in the natural world. As Mark Lomolino shows, key questions such as where species occur, how they vary from place to place, where their ancestors occurred, and how they spread across the globe, are essential for us to develop effective strategies for conserving the great menagerie of life across our planet. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable. |
| define immigration in biology: Migration and Mental Health Dinesh Bhugra, Susham Gupta, 2010-12-02 Human migration is a global phenomenon and is on the increase. It occurs as a result of 'push' factors (asylum, natural disaster), or as a result of 'pull' factors (seeking economic or educational improvement). Whatever the cause of the relocation, the outcome requires individuals to adjust to their new surroundings and cope with the stresses involved, and as a result, there is considerable potential for disruption to mental health. This volume explores all aspects of migration, on all scales, and its effect on mental health. It covers migration in the widest sense and does not limit itself to refugee studies. It covers issues specific to the elderly and the young, as well as providing practical tips for clinicians on how to improve their own cultural competence in the work setting. The book will be of interest to all mental health professionals and those involved in establishing health and social policy. |
| define immigration in biology: Black Identities Mary C. WATERS, 2009-06-30 The story of West Indian immigrants to the United States is generally considered to be a great success. Mary Waters, however, tells a very different story. She finds that the values that gain first-generation immigrants initial success--a willingness to work hard, a lack of attention to racism, a desire for education, an incentive to save--are undermined by the realities of life and race relations in the United States. Contrary to long-held beliefs, Waters finds, those who resist Americanization are most likely to succeed economically, especially in the second generation. |
| define immigration in biology: Biological Aspects of Human Migration C. G. Nicholas Mascie-Taylor, Gabriel W. Lasker, 1988-01-29 An examination of migration as an important cause of change in the genetic and demographic structure of human populations. |
| define immigration in biology: Lifestyle Migration Michaela Benson, 2016-05-06 Relatively affluent individuals from various corners of the globe are increasingly choosing to migrate, spurred on by the promise of a better and more fulfilling way of life within their destination. Despite its increasing scale, migration academics have yet to consolidate and establish lifestyle migration as a subfield of theoretical enquiry, until now. This volume offers a dynamic and holistic analysis of contemporary lifestyle migrations, exploring the expectations and aspirations which inform and drive migration alongside the realities of life within the destination. It also recognizes the structural conditions (and constraints) which frame lifestyle migration, laying the groundwork for further intellectual enquiry. Through rich empirical case studies this volume addresses this important and increasingly common form of migration in a manner that will interest scholars of mobility, migration, lifestyle and culture across the social sciences. |
| define immigration in biology: Communities in Action National Academies of Sciences, Engineering, and Medicine, Health and Medicine Division, Board on Population Health and Public Health Practice, Committee on Community-Based Solutions to Promote Health Equity in the United States, 2017-04-27 In the United States, some populations suffer from far greater disparities in health than others. Those disparities are caused not only by fundamental differences in health status across segments of the population, but also because of inequities in factors that impact health status, so-called determinants of health. Only part of an individual's health status depends on his or her behavior and choice; community-wide problems like poverty, unemployment, poor education, inadequate housing, poor public transportation, interpersonal violence, and decaying neighborhoods also contribute to health inequities, as well as the historic and ongoing interplay of structures, policies, and norms that shape lives. When these factors are not optimal in a community, it does not mean they are intractable: such inequities can be mitigated by social policies that can shape health in powerful ways. Communities in Action: Pathways to Health Equity seeks to delineate the causes of and the solutions to health inequities in the United States. This report focuses on what communities can do to promote health equity, what actions are needed by the many and varied stakeholders that are part of communities or support them, as well as the root causes and structural barriers that need to be overcome. |
| define immigration in biology: Birds of Two Worlds Russell Greenberg, Peter P. Marra, 2005-05-02 For centuries biologists have tried to understand the underpinnings of avian migration: where birds go and why, why some migrate and some do not, how they adapt to a changing environment, and how migratory systems evolve. Twenty-five years ago the answers to many of these questions were addressed by a collection of migration experts in Keast and Morton's classic work Migrant Birds in the Neotropics. In 1992, Hagan and Johnston published a follow-up book, Ecology and Conservation of Neotropical Migrant Landbirds. In Birds of Two Worlds Russell Greenberg and Peter Marra bring together the world's experts on avian migration to discuss its ecology and evolution. The contributors move the discussion of migration to a global stage, looking at all avian migration systems and delving deeper into the evolutionary foundations of migratory behavior. Readers interested in the biology, behavior, ecology, and evolution of birds have waited a decade to see a worthy successor to the earlier classics. Birds of Two Worlds will complete the trilogy and become indispensable for ornithologists, evolutionary biologists, serious birders, and public and academic libraries. |
| define immigration in biology: Insect Migration V. Alistair Drake, A. Gavin Gatehouse, 1995-09-14 A comprehensive account of insect migration in its ecological and evolutionary context. |
| define immigration in biology: Oswal-Gurukul Biology Chapterwise Objective + Subjective for CBSE Class 12 Term 2 Exam Oswal - Gurukul, 2021-12-27 |
| define immigration in biology: Emigration and Its Effects on the Sending Country Beth J. Asch, Courtland Reichmann, 1994 What are the effects of immigration on the sending country? Studies suggest that emigration has a positive effect. |
| define immigration in biology: Conservation Biology Fred Van Dyke, 2008-02-28 Fred Van Dyke’s new textbook, Conservation Biology: Foundations, Concepts, Applications, 2nd Edition, represents a major new text for anyone interested in conservation. Drawing on his vast experience, Van Dyke’s organizational clarity and readable style make this book an invaluable resource for students in conservation around the globe. Presenting key information and well-selected examples, this student-friendly volume carefully integrates the science of conservation biology with its implications for ethics, law, policy and economics. |
| define immigration in biology: Immigration, Cultural Identity, and Mental Health Eugenio M. Rothe, Andres J. Pumariega, 2020 This book outlines the various psychosocial impacts of immigration on cultural identity and its impact on mainstream culture. It examines how cultural identity fits into individual mental health and has to be taken into account in treatment. |
| define immigration in biology: Can Science Make Sense of Life? Sheila Jasanoff, 2019-03-05 Since the discovery of the structure of DNA and the birth of the genetic age, a powerful vocabulary has emerged to express science’s growing command over the matter of life. Armed with knowledge of the code that governs all living things, biology and biotechnology are poised to edit, even rewrite, the texts of life to correct nature’s mistakes. Yet, how far should the capacity to manipulate what life is at the molecular level authorize science to define what life is for? This book looks at flash points in law, politics, ethics, and culture to argue that science’s promises of perfectibility have gone too far. Science may have editorial control over the material elements of life, but it does not supersede the languages of sense-making that have helped define human values across millennia: the meanings of autonomy, integrity, and privacy; the bonds of kinship, family, and society; and the place of humans in nature. |
| define immigration in biology: CBSE Most Likely Question Bank Biology Class 12 (2022 Exam) - Categorywise & Chapterwise with New Objective Paper Pattern, Reduced Syllabus Gurukul, 2021-06-15 Benefit from Chapter Wise & Section wise Question Bank Series for Class 12 CBSE Board Examinations (2022) with our Most Likely CBSE Question Bank for Biology. Subject Wise books designed to prepare and practice effectively each subject at a time. Our Most Probable Question Bank highlights the knowledge based and skill based questions covering the entire syllabus including One Word Answers, Expansion of Abbreviations, MCQs, Definitions, Very Short Answers, Assertion and Reason Based Questions, Short Answers, Long Answers - I, Long Answers - II, Source and Passage Based Questions, Reasoning Based Questions, Diagramatic Questions, Differentiate Between, Evaluation and Analysis Based Questtions, Case Based Questions, and Test Your Knowledge, Our handbook will help you study and practice well at home. How can you benefit from Gurukul Most Likely CBSE Biology Question Bank for 12th Class? Our handbook is strictly based on the latest syllabus prescribed by the council and is categorized chapterwise topicwise to provide in depth knowledge of different concept questions and their weightage to prepare you for Class 12th CBSE Board Examinations 2022. 1. Focussed on New Objective Paper Pattern Questions 2. Includes Solved Board Exam Paper 2020 for both Delhi and outside Delhi (Set 1-3) and Toppers Answers 2019 3. Previous Years Board Question Papers Incorporated 4. Visual Interpretation as per latest CBSE Syllabus 5. Exam Oriented Effective Study Material provided for Self Study 6. Chapter Summary for Easy & Quick Revision 7. Having frequently asked questions from Compartment Paper, Foreign Paper, and latest Board Paper 8. Follows the Standard Marking Scheme of CBSE Board Our question bank also consists of numerous tips and tools to improve study techniques for any exam paper. Students can create vision boards to establish study schedules, and maintain study logs to measure their progress. With the help of our handbook, students can also identify patterns in question types and structures, allowing them to cultivate more efficient answering methods. Our book can also help in providing a comprehensive overview of important topics in each subject, making it easier for students to solve for the exams. |
| define immigration in biology: Integrated Population Models Michael Schaub, Marc Kéry, 2021-11-12 Integrated Population Models: Theory and Ecological Applications with R and JAGS is the first book on integrated population models, which constitute a powerful framework for combining multiple data sets from the population and the individual levels to estimate demographic parameters, and population size and trends. These models identify drivers of population dynamics and forecast the composition and trajectory of a population. Written by two population ecologists with expertise on integrated population modeling, this book provides a comprehensive synthesis of the relevant theory of integrated population models with an extensive overview of practical applications, using Bayesian methods by means of case studies. The book contains fully-documented, complete code for fitting all models in the free software, R and JAGS. It also includes all required code for pre- and post-model-fitting analysis. Integrated Population Models is an invaluable reference for researchers and practitioners involved in population analysis, and for graduate-level students in ecology, conservation biology, wildlife management, and related fields. The text is ideal for self-study and advanced graduate-level courses. - Offers practical and accessible ecological applications of IPMs (integrated population models) - Provides full documentation of analyzed code in the Bayesian framework - Written and structured for an easy approach to the subject, especially for non-statisticians |
| define immigration in biology: 10 in One Study Package for CBSE Biology Class 12 with 5 Model Papers Disha Experts, 2017-08-29 10 in ONE CBSE Study Package Biology class 12 with 5 Sample Papers is another innovative initiative from Disha Publication. This book provides the excellent approach to Master the subject. The book has 10 key ingredients that will help you achieve success. 1. Chapter Utility Score 2. Board 2017 Solved Paper 3. Exhaustive theory based on the syllabus of NCERT books along with the concept maps for the bird's eye view of the chapter. 4. NCERT Solutions: NCERT Exercise Questions. 5. VSA, SA & LA Questions: Sufficient Practice Questions divided into VSA, SA & LA type. 6. Past Years Questions: Past 10 year Questions of Board Exams are also included. 7. HOTS/ Exemplar/ Value based Questions: High Order Thinking Skill Based, Moral Value Based and Selective NCERT Exemplar Questions included. 8. Chapter Test: A 30-40 marks test of 60 min. to assess your preparation in each chapter. 9. Important Formulae, Terms and Definitions 10. Full syllabus Sample Papers - 5 papers with detailed solutions designed exactly on the latest pattern of CBSE Board. |
| define immigration in biology: Avian Migration Peter Berthold, Eberhard Gwinner, Edith Sonnenschein, 2013-03-09 P. Berthold and E. Gwinnd Bird migration is an intriguing aspect of the living world - so much so that it has been investigated for as long, and as thoroughly, as almost any other natural phenomenon. Aristotle, who can count as the founder of scientific ornithology, paid very close attention to the migrations of the birds he ob served, but it was not until the reign of Friedrich II, in the first half of the 13th century, that reliable data began to be obtained. From then on, the data base grew rapidly. Systematic studies of bird migration were introduced when the Vogelwarte Rossitten was founded, as the first ornithological biological observation station in the world (see first chapter In Memory of Vogelwarte Rossitten). This area later received enormous impetus when ex perimental research on the subject was begun: the large-scale bird-ringing experiment initiated in Rossitten in 1903 by Johannes Thienemann (who was inspired by the pioneering studies of C. C. M. Mortensen), the experiments on photoperiodicity carried out by William Rowan in the 1920s in Canada and retention and release experiments performed by Thienemann in the 1930s in Rossitten, the first experimental study on the orientation of migratory birds. After the Second World War, migration research, while continuing in the previous areas, also expanded into new directions such as radar ornithology, ecophysiology and hormonal control mechanisms, studies of evolution, ge netics, telemetry and others. |
| define immigration in biology: 10 in One Study Package for CBSE Biology Class 12 with Objective Questions & 3 Sample Papers 4th Edition Disha Experts, 2020-06-20 |
| define immigration in biology: Migration Theory Caroline B. Brettell, James F. Hollifield, 2014-08-25 During the last decade the issue of migration has increased in global prominence and has caused controversy among host countries around the world. To remedy the tendency of scholars to speak only to and from their own disciplinary perspective, this book brings together in a single volume essays dealing with central concepts and key theoretical issues in the study of international migration across the social sciences. Editors Caroline B. Brettell and James F. Hollifield have guided a thorough revision of this seminal text, with valuable insights from such fields as anthropology, demography, economics, geography, history, law, political science, and sociology. Each essay focuses on key concepts, questions, and theoretical frameworks on the topic of international migration in a particular discipline, but the volume as a whole teaches readers about similarities and differences across the boundaries between one academic field and the next. How, for example, do political scientists wrestle with the question of citizenship as compared with sociologists, and how different is this from the questions that anthropologists explore when they deal with ethnicity and identity? Are economic theories about ethnic enclaves similar to those of sociologists? What theories do historians (the essentializers) and demographers (the modelers) draw upon in their attempts to explain empirical phenomena in the study of immigration? What are the units of analysis in each of the disciplines and do these shape different questions and diverse models and theories? Scholars and students in migration studies will find this book a powerful theoretical guide and a text that brings them up to speed quickly on the important issues and the debates. All of the social science disciplines will find that this book offers a one-stop synthesis of contemporary thought on migration. |
| define immigration in biology: American Immigration: A Very Short Introduction David A. Gerber, 2021-03-01 An updated, penetrating, and balanced analysis of one of the most contentious issues in America today, offering a historically informed portrait of immigration. Americans have come from every corner of the globe, and they have been brought together by a variety of historical processes--conquest, colonialism, the slave trade, territorial acquisition, and voluntary immigration. In this Very Short Introduction, historian David A. Gerber captures the histories of dozens of American ethnic groups over more than two centuries and reveals how American life has been formed in significant ways by immigration. He discusses the relationships between race and ethnicity in the life of these groups and in the formation of American society, as well as explaining how immigration policy and legislation have helped to form those relationships. Moreover, by highlighting the parallels that contemporary patterns of immigration and resettlement share with those of the past - which Americans now generally regard as having had positive outcomes - the book offers an optimistic portrait of current immigration that is at odds with much present-day opinion. Newly updated, this book speaks directly to the ongoing fears of immigration that have fueled the debate about both illegal immigration and the need for stronger immigration laws and a border wall. |
| define immigration in biology: Cell Movements Dennis Bray, 2001 This book vividly describes how complex and integrated movements can arise from the properties and behaviors of biological molecules. It provides a uniquely integrated account in which the latest findings from biophysics and molecular biology are put into the context of living cells. This second edition is updated throughout with recent advances in the field and has a completely revised and redrawn art program. The text is suitable for advanced undergraduates, graduate students, and for professionals wishing for an overview of this field. |
| define immigration in biology: Measuring Racial Discrimination National Research Council, Division of Behavioral and Social Sciences and Education, Committee on National Statistics, Panel on Methods for Assessing Discrimination, 2004-07-24 Many racial and ethnic groups in the United States, including blacks, Hispanics, Asians, American Indians, and others, have historically faced severe discriminationâ€pervasive and open denial of civil, social, political, educational, and economic opportunities. Today, large differences among racial and ethnic groups continue to exist in employment, income and wealth, housing, education, criminal justice, health, and other areas. While many factors may contribute to such differences, their size and extent suggest that various forms of discriminatory treatment persist in U.S. society and serve to undercut the achievement of equal opportunity. Measuring Racial Discrimination considers the definition of race and racial discrimination, reviews the existing techniques used to measure racial discrimination, and identifies new tools and areas for future research. The book conducts a thorough evaluation of current methodologies for a wide range of circumstances in which racial discrimination may occur, and makes recommendations on how to better assess the presence and effects of discrimination. |
| define immigration in biology: U.S. Health in International Perspective National Research Council, Institute of Medicine, Board on Population Health and Public Health Practice, Division of Behavioral and Social Sciences and Education, Committee on Population, Panel on Understanding Cross-National Health Differences Among High-Income Countries, 2013-04-12 The United States is among the wealthiest nations in the world, but it is far from the healthiest. Although life expectancy and survival rates in the United States have improved dramatically over the past century, Americans live shorter lives and experience more injuries and illnesses than people in other high-income countries. The U.S. health disadvantage cannot be attributed solely to the adverse health status of racial or ethnic minorities or poor people: even highly advantaged Americans are in worse health than their counterparts in other, peer countries. In light of the new and growing evidence about the U.S. health disadvantage, the National Institutes of Health asked the National Research Council (NRC) and the Institute of Medicine (IOM) to convene a panel of experts to study the issue. The Panel on Understanding Cross-National Health Differences Among High-Income Countries examined whether the U.S. health disadvantage exists across the life span, considered potential explanations, and assessed the larger implications of the findings. U.S. Health in International Perspective presents detailed evidence on the issue, explores the possible explanations for the shorter and less healthy lives of Americans than those of people in comparable countries, and recommends actions by both government and nongovernment agencies and organizations to address the U.S. health disadvantage. |
| define immigration in biology: How to Be a (Young) Antiracist Ibram X. Kendi, Nic Stone, 2023-09-12 The #1 New York Times bestseller that sparked international dialogue is now a book for young adults! Based on the adult bestseller by Ibram X. Kendi, and co-authored by bestselling author Nic Stone, How to be a (Young) Antiracist will serve as a guide for teens seeking a way forward in acknowledging, identifying, and dismantling racism and injustice. The New York Times bestseller How to be an Antiracist by Ibram X. Kendi is shaping the way a generation thinks about race and racism. How to be a (Young) Antiracist is a dynamic reframing of the concepts shared in the adult book, with young adulthood front and center. Aimed at readers 12 and up, and co-authored by award-winning children's book author Nic Stone, How to be a (Young) Antiracist empowers teen readers to help create a more just society. Antiracism is a journey--and now young adults will have a map to carve their own path. Kendi and Stone have revised this work to provide anecdotes and data that speaks directly to the experiences and concerns of younger readers, encouraging them to think critically and build a more equitable world in doing so. |
| define immigration in biology: Research Strategies in Human Biology Gabriel Ward Lasker, C. G. Nicholas Mascie-Taylor, 1993-11-04 This book is about the process of doing research, not about the results obtained. A number of researchers with experience working on problems including environmental stresses, population genetics, parasitic vectors and vital records describe obstacles encountered and successful strategies employed in their own studies and in those of others. One learns to do research by trial and error, but accounts such as these can supplement what one learns from mentors and fellow students. |
| define immigration in biology: Immigration and Freedom Chandran Kukathas, 2021-03-16 A compelling account of the threat immigration control poses to the citizens of free societies Immigration is often seen as a danger to western liberal democracies because it threatens to undermine their fundamental values, most notably freedom and national self-determination. In this book, however, Chandran Kukathas argues that the greater threat comes not from immigration but from immigration control. Kukathas shows that immigration control is not merely about preventing outsiders from moving across borders. It is about controlling what outsiders do once in a society: whether they work, reside, study, set up businesses, or share their lives with others. But controlling outsiders—immigrants or would-be immigrants—requires regulating, monitoring, and sanctioning insiders, those citizens and residents who might otherwise hire, trade with, house, teach, or generally associate with outsiders. The more vigorously immigration control is pursued, the more seriously freedom is diminished. The search for control threatens freedom directly and weakens the values upon which it relies, notably equality and the rule of law. Kukathas demonstrates that the imagined gains from efforts to control immigration are illusory, for they do not promote economic prosperity or social solidarity. Nor does immigration control bring self-determination, since the apparatus of control is an international institutional regime that increases the power of states and their agencies at the expense of citizens. That power includes the authority to determine who is and is not an insider: to define identity itself. Looking at past and current practices across the world, Immigration and Freedom presents a critique of immigration control as an institutional reality, as well as an account of what freedom means—and why it matters. |
| define immigration in biology: Biology and Engineering of Stem Cell Niches Ajaykumar Vishwakarma, Jeffrey M Karp, 2017-03-22 Biology and Engineering of Stem Cell Niches covers a wide spectrum of research and current knowledge on embryonic and adult stem cell niches, focusing on the understanding of stem cell niche molecules and signaling mechanisms, including cell-cell/cell-matrix interactions. The book comprehensively reviews factors regulating stem cell behavior and the corresponding approaches for understanding the subsequent effect of providing the proper matrix molecules, mechanical cues, and/or chemical cues. It encompasses a variety of tools and techniques for developing biomaterials-based methods to model synthetic stem cell niches in vivo, or to enhance and direct stem cell fate in vitro. A final section of the book discusses stem cell niche bioengineering strategies and current advances in each tissue type. - Includes the importance of Cell-Cell and Cell Matrix Interactions in each specific tissue and system - Authored and edited by authorities in this emerging and multidisciplinary field - Includes valuable links to 5-10 minute YouTube© author videos that describe main points |
| define immigration in biology: Evolution of Insect Migration and Diapause H. Dingle, 2012-12-06 This volume is an outgrowth of a Symposium entitled Evolution of Escape in Space and Time held at the XV International Congress of Entomology in Washington, D. C., USA in August, 1976. The choice of topic was prompted by recent advances in evolutionary ecology and the apparent suitability of insect migration and dia pause as appropriate material for evolutionary studies. In the event, that choice seems amply justified as I hope a perusal of these papers will show. These Sympos ium papers hardly cover the topic of the evolution of escape mechanisms exhaustively, and I am sure everyone will have his favorite lacuna. Some of the more obvious ones are indicated by Professor Southwood in his Concluding Remarks at the end of the book. The purpose of the Symposium, however, was not complete coverage, but rather to indicate the potential inherent in insect migration and diapause for the study of evolutionary problems. In that I think we have succeeded reasonably well. These papers are expanded and in some cases somewhat altered versions of the papers delivered in Washington. This has allowed greater coverage of the topics in question. I suggested a format of a general overview of a topic emphasizing the author's own research con tributions. In general the papers follow this outline although emphases vary. Two of the authors, Dr. Rainey and Dr. Lumme, were unable to attend the Symposium. Dr. Rainey's paper was read by Mr. Frank Walsh, but Dr. |
| define immigration in biology: Biology , 1986 |
| define immigration in biology: Circannual Rhythms Eberhard Gwinner, 2012-12-06 In addition to the more or less static properties of the environ ment, plants and animals must cope with its temporal variations. Among the most conspicuous temporal changes to which organisms are exposed are periodic phenomena generated by the rotation of the earth about its axis, its revolution around the sun, and the more complex movements of the moon in relation to both sun and earth. The first two of these astronomical cycles are basic to the familiar daily and annual rhythms, respectively, in the environment. The third generates somewhat more complex cycles, such as those in moonlight and variations in tides. These environmental cycles have provided challenges and opportunities for organisms to adjust their physiology and behavior to them. Indeed, the predictability inherent to these periodic processes has enabled organisms to evolve innate endogenous rhythmic programs that match the environmental cycles and allow, in a variety of different ways, adjustment of biological activities to the cycles of environmental changes. The endogenous nature of rhythmicity was first clearly recognized in the 1930's in daily periodicities, the most widely distributed and best investigated class of biological rhythms of this type. In the 1950's, demonstrations of endogenous tidal and lunar rhythms, which occur in some littoral and marine organisms, ensued. Another decade passed before endogenous annual periodicities were first demonstrated unambiguously. |
| define immigration in biology: Understanding Racial and Ethnic Differences in Health in Late Life National Research Council, Division of Behavioral and Social Sciences and Education, Committee on Population, Panel on Race, Ethnicity, and Health in Later Life, 2004-09-08 As the population of older Americans grows, it is becoming more racially and ethnically diverse. Differences in health by racial and ethnic status could be increasingly consequential for health policy and programs. Such differences are not simply a matter of education or ability to pay for health care. For instance, Asian Americans and Hispanics appear to be in better health, on a number of indicators, than White Americans, despite, on average, lower socioeconomic status. The reasons are complex, including possible roles for such factors as selective migration, risk behaviors, exposure to various stressors, patient attitudes, and geographic variation in health care. This volume, produced by a multidisciplinary panel, considers such possible explanations for racial and ethnic health differentials within an integrated framework. It provides a concise summary of available research and lays out a research agenda to address the many uncertainties in current knowledge. It recommends, for instance, looking at health differentials across the life course and deciphering the links between factors presumably producing differentials and biopsychosocial mechanisms that lead to impaired health. |
| define immigration in biology: Biology. Anthropology. Psychology. Sociology Howard Jason Rogers, 1906 |
DEFINE Definition & Meaning - Merriam-Webster
The meaning of DEFINE is to determine or identify the essential qualities or meaning of. How to use define in a sentence.
DEFINE Definition & Meaning | Dictionary.com
Define definition: to state or set forth the meaning of (a word, phrase, etc.).. See examples of DEFINE used in a sentence.
DEFINE | English meaning - Cambridge Dictionary
DEFINE definition: 1. to say what the meaning of something, especially a word, is: 2. to explain and describe the…. Learn more.
DEFINE definition and meaning | Collins English Dictionary
If you define something, you show, describe, or state clearly what it is and what its limits are, or what it is like. We were unable to define what exactly was wrong with him. [ VERB wh ]
Define - definition of define by The Free Dictionary
define - show the form or outline of; "The tree was clearly defined by the light"; "The camera could define the smallest object"
DEFINE - Definition & Meaning - Reverso English Dictionary
Define definition: state the meaning of a word or phrase. Check meanings, examples, usage tips, pronunciation, domains, related words.
define - Wiktionary, the free dictionary
May 13, 2025 · define (third-person singular simple present defines, present participle defining, simple past and past participle defined) To determine with precision; to mark out with …
Define: Definition, Meaning, and Examples - usdictionary.com
Dec 24, 2024 · The word "define" means to explain or clarify the meaning of something or to establish boundaries and parameters. It is a versatile word used in many contexts, from …
Define Definition & Meaning - YourDictionary
Define Sentence Examples The child's eagerness and interest carry her over many obstacles that would be our undoing if we stopped to define and explain everything. It will not be welfare (or, …
DEFINITION Definition & Meaning - Merriam-Webster
The meaning of DEFINITION is a statement of the meaning of a word or word group or a sign or symbol. How to use definition in a sentence.
DEFINE Definition & Meaning - Merriam-Webster
The meaning of DEFINE is to determine or identify the essential qualities or meaning of. How to use define in a sentence.
DEFINE Definition & Meaning | Dictionary.com
Define definition: to state or set forth the meaning of (a word, phrase, etc.).. See examples of DEFINE used in a sentence.
DEFINE | English meaning - Cambridge Dictionary
DEFINE definition: 1. to say what the meaning of something, especially a word, is: 2. to explain and describe the…. Learn more.
DEFINE definition and meaning | Collins English Dictionary
If you define something, you show, describe, or state clearly what it is and what its limits are, or what it is like. We were unable to define what exactly was wrong with him. [ VERB wh ]
Define - definition of define by The Free Dictionary
define - show the form or outline of; "The tree was clearly defined by the light"; "The camera could define the smallest object"
DEFINE - Definition & Meaning - Reverso English Dictionary
Define definition: state the meaning of a word or phrase. Check meanings, examples, usage tips, pronunciation, domains, related words.
define - Wiktionary, the free dictionary
May 13, 2025 · define (third-person singular simple present defines, present participle defining, simple past and past participle defined) To determine with precision; to mark out with …
Define: Definition, Meaning, and Examples - usdictionary.com
Dec 24, 2024 · The word "define" means to explain or clarify the meaning of something or to establish boundaries and parameters. It is a versatile word used in many contexts, from …
Define Definition & Meaning - YourDictionary
Define Sentence Examples The child's eagerness and interest carry her over many obstacles that would be our undoing if we stopped to define and explain everything. It will not be welfare (or, …
DEFINITION Definition & Meaning - Merriam-Webster
The meaning of DEFINITION is a statement of the meaning of a word or word group or a sign or symbol. How to use definition in a sentence.
