Analysis and Control of Age-Dependent Population Dynamics PDF Download

Author: S. Anita
Publisher: Springer Science & Business Media
ISBN: 9401594368
Category : Mathematics
Languages : en
Pages : 207

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Book Description
The material of the present book is an extension of a graduate course given by the author at the University "Al.I. Cuza" Iasi and is intended for stu dents and researchers interested in the applications of optimal control and in mathematical biology. Age is one of the most important parameters in the evolution of a bi ological population. Even if for a very long period age structure has been considered only in demography, nowadays it is fundamental in epidemiology and ecology too. This is the first book devoted to the control of continuous age structured populationdynamics.It focuses on the basic properties ofthe solutions and on the control of age structured population dynamics with or without diffusion. The main goal of this work is to familiarize the reader with the most important problems, approaches and results in the mathematical theory of age-dependent models. Special attention is given to optimal harvesting and to exact controllability problems, which are very important from the econom ical or ecological points of view. We use some new concepts and techniques in modern control theory such as Clarke's generalized gradient, Ekeland's variational principle, and Carleman estimates. The methods and techniques we use can be applied to other control problems.

Author: Nancy Wood Ahrens
Publisher:
ISBN:
Category : Rural population
Languages : en
Pages : 166

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Book Description

Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309086221
Category : Medical
Languages : en
Pages : 537

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Book Description
The anthrax incidents following the 9/11 terrorist attacks put the spotlight on the nation's public health agencies, placing it under an unprecedented scrutiny that added new dimensions to the complex issues considered in this report. The Future of the Public's Health in the 21st Century reaffirms the vision of Healthy People 2010, and outlines a systems approach to assuring the nation's health in practice, research, and policy. This approach focuses on joining the unique resources and perspectives of diverse sectors and entities and challenges these groups to work in a concerted, strategic way to promote and protect the public's health. Focusing on diverse partnerships as the framework for public health, the book discusses: The need for a shift from an individual to a population-based approach in practice, research, policy, and community engagement. The status of the governmental public health infrastructure and what needs to be improved, including its interface with the health care delivery system. The roles nongovernment actors, such as academia, business, local communities and the media can play in creating a healthy nation. Providing an accessible analysis, this book will be important to public health policy-makers and practitioners, business and community leaders, health advocates, educators and journalists.

Author: Jian Song
Publisher: Springer
ISBN:
Category : Population
Languages : en
Pages : 314

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Book Description
Treating population growth as a dynamic process, this book considers quantitative studies of population in the framework of cybernetics, and describes some rules and characteristics of the population systems under control functions (population policy), thus establishing a scientific basis for population control and family planning. Particular features of this book are the combination of qualitative with quantitative studies, the combination of natural and social sciences and the combination of theory with practice. Differing from the demographic approach, this book uses the methods of systems science to study social systems, thereby putting forward a number of new concepts and theories, such as population system control model, population stability theory and population system optimal control. The book illustrates how the systems framework, systems methodology and systems theory represent a powerful scientific approach to some practical problems. The reader may also find here some new results reached by applying such methods to the study of population problems. The book in fact contains many new research findings that have not been published previously. The first author is Chairman of the State Science and Technology Commission of the People's Republic of China as well as Professor at Qinghua University. Prof. Song received the Albert Einstein Award from the International Association for Mathematical Modelling in August 1987. The second author is Deputy Director of the Beijing Institute of Information and Control. The book will be of great interest to population theorists and systems scientists, in particular as an account of work being done currently in China in this field.

Author: William Petersen
Publisher:
ISBN:
Category : Social Science
Languages : en
Pages : 502

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Book Description
Compilation of readings in population dynamics - includes papers on population growth (incl. Future projections), population census methodology, age and sex, minority groups and refugees, urbanization, migration, with particular reference to Argentina and Switzerland, health and mortality, fertility, population policy (incl. Birth control, abortion, family planning, etc.), etc. References and statistical tables.

Author: José Miguel Guzmán
Publisher: UN
ISBN:
Category : Law
Languages : en
Pages : 258

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Book Description
This book broadens and deepens understanding of a wide range of population-climate change linkages. Incorporating population dynamics into research, policymaking and advocacy around climate change is critical for understanding trajectory of global greenhouse gas emissions, for developing and implementing adaptation plans and thus for global and national efforts to curtail this threat. The papers in this volume provide a substantive and methodological guide to the current state of knowledge on issues such as population growth and size and emissions; population vulnerability and adaptation linked to health, gender disparities and children; migration and urbanization; and the data and analytical needs for the next stages of policy-relevant research.

Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 030914809X
Category : Medical
Languages : en
Pages : 236

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Book Description
Hypertension is one of the leading causes of death in the United States, affecting nearly one in three Americans. It is prevalent in adults and endemic in the older adult population. Hypertension is a major contributor to cardiovascular morbidity and disability. Although there is a simple test to diagnose hypertension and relatively inexpensive drugs to treat it, the disease is often undiagnosed and uncontrolled. A Population-Based Policy and Systems Change Approach to the Prevention and Control Hypertension identifies a small set of high-priority areas in which public health officials can focus their efforts to accelerate progress in hypertension reduction and control. It offers several recommendations that embody a population-based approach grounded in the principles of measurement, system change, and accountability. The recommendations are designed to shift current hypertension reduction strategies from an individual-based approach to a population-based approach. They are also designed to improve the quality of care provided to individuals with hypertension and to strengthen the Center for Disease Control and Prevention's leadership in seeking a reduction in the sodium intake in the American diet to meet dietary guidelines. The book is an important resource for federal public health officials and organizations, especially the Center for Disease Control and Prevention, as well as medical professionals and community health workers.

Author: Nathan Keyfitz
Publisher: Cambridge, Mass. : Abt Books
ISBN:
Category : Political Science
Languages : en
Pages : 296

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Book Description
Study of the social policy implications of population dynamics - reviews the theory of Malthus; addresses issues of data analysis and forecasting techniques, economic and social development, natural resources, poverty, middle class consumption, ageing population, social security, taxation, demographic pressures and birth control. Bibliography and tables.

Author: Stanley K. Smith
Publisher: Springer Science & Business Media
ISBN: 0306473720
Category : Social Science
Languages : en
Pages : 433

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Book Description
The initial plans for this book sprang from a late-afternoon conversation in a hotel bar. All three authors were attending the 1996 meeting of the Population As- ciation of America in New Orleans. While nursing drinks and expounding on a variety of topics, we began talking about our current research projects. It so happened that all three of us had been entertaining the notion of writing a book on state and local population projections. Recognizing the enormity of the project for a single author, we quickly decided to collaborate. Had we not decided to work together, it is unlikely that this book ever would have been written. The last comprehensive treatment of state and local population projections was Don Pittenger’s excellent work Projecting State and Local Populations (1976). Many changes affecting the production of population projections have occurred since that time. Technological changes have led to vast increases in computing power, new data sources, the development of GIS, and the creation of the Internet. The procedures for applying a number of projection methods have changed considerably, and several completely new methods have been developed.

Author: Charles J. Krebs
Publisher: University of Chicago Press
ISBN: 022601049X
Category : Science
Languages : en
Pages : 317

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Book Description
How did rodent outbreaks in Germany help to end World War I? What caused the destructive outbreak of rodents in Oregon and California in the late 1950s, the large population outbreak of lemmings in Scandinavia in 2010, and the great abundance of field mice in Scotland in the spring of 2011? Population fluctuations, or outbreaks, of rodents constitute one of the classic problems of animal ecology, and in Population Fluctuations in Rodents, Charles J. Krebs sifts through the last eighty years of research to draw out exactly what we know about rodent outbreaks and what should be the agenda for future research. Krebs has synthesized the research in this area, focusing mainly on the voles and lemmings of the Northern Hemisphere—his primary area of expertise—but also referring to the literature on rats and mice. He covers the patterns of changes in reproduction and mortality and the mechanisms that cause these changes—including predation, disease, food shortage, and social behavior—and discusses how landscapes can affect population changes, methodically presenting the hypotheses related to each topic before determining whether or not the data supports them. He ends on an expansive note, by turning his gaze outward and discussing how the research on rodent populations can apply to other terrestrial mammals. Geared toward advanced undergraduate students, graduate students, and practicing ecologists interested in rodent population studies, this book will also appeal to researchers seeking to manage rodent populations and to understand outbreaks in both natural and urban settings—or, conversely, to protect endangered species.