OECD Urban Studies Cities in the World A New Perspective on Urbanisation PDF Download
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Author: OECD
Publisher: OECD Publishing
ISBN: 9264376666
Category :
Languages : en
Pages : 171
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Book Description
Cities are not only home to around half of the global population but also major centers of economic activity and innovation. Yet, so far there has been no consensus of what a city really is. Substantial differences in the way cities, metropolitan, urban, and rural areas are defined across countries hinder robust international comparisons and an accurate monitoring of SDGs. The report Cities in the World: A New Perspective on Urbanisation addresses this void and provides new insights on urbanisation by applying for the first time two new definitions of human settlements to the entire globe: the Degree of Urbanisation and the Functional Urban Area.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264376666
Category :
Languages : en
Pages : 171
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Book Description
Cities are not only home to around half of the global population but also major centers of economic activity and innovation. Yet, so far there has been no consensus of what a city really is. Substantial differences in the way cities, metropolitan, urban, and rural areas are defined across countries hinder robust international comparisons and an accurate monitoring of SDGs. The report Cities in the World: A New Perspective on Urbanisation addresses this void and provides new insights on urbanisation by applying for the first time two new definitions of human settlements to the entire globe: the Degree of Urbanisation and the Functional Urban Area.
Author: United Nations Publications
Publisher:
ISBN: 9789211483192
Category : Political Science
Languages : en
Pages : 124
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Book Description
The report presents findings from the 2018 revision of World Urbanization Prospects, which contains the latest estimates of the urban and rural populations or areas from 1950 to 2018 and projections to 2050, as well as estimates of population size from 1950 to 2018 and projections to 2030 for all urban agglomerations with 300,000 inhabitants or more in 2018. The world urban population is at an all-time high, and the share of urban dwellers, is projected to represent two thirds of the global population in 2050. Continued urbanization will bring new opportunities and challenges for sustainable development.
Author: Dieter Thomas Tietze
Publisher: Springer
ISBN: 3319916890
Category : Science
Languages : en
Pages : 270
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Book Description
The average person can name more bird species than they think, but do we really know what a bird “species” is? This open access book takes up several fascinating aspects of bird life to elucidate this basic concept in biology. From genetic and physiological basics to the phenomena of bird song and bird migration, it analyzes various interactions of birds – with their environment and other birds. Lastly, it shows imminent threats to birds in the Anthropocene, the era of global human impact. Although it seemed to be easy to define bird species, the advent of modern methods has challenged species definition and led to a multidisciplinary approach to classifying birds. One outstanding new toolbox comes with the more and more reasonably priced acquisition of whole-genome sequences that allow causative analyses of how bird species diversify. Speciation has reached a final stage when daughter species are reproductively isolated, but this stage is not easily detectable from the phenotype we observe. Culturally transmitted traits such as bird song seem to speed up speciation processes, while another behavioral trait, migration, helps birds to find food resources, and also coincides with higher chances of reaching new, inhabitable areas. In general, distribution is a major key to understanding speciation in birds. Examples of ecological speciation can be found in birds, and the constant interaction of birds with their biotic environment also contributes to evolutionary changes. In the Anthropocene, birds are confronted with rapid changes that are highly threatening for some species. Climate change forces birds to move their ranges, but may also disrupt well-established interactions between climate, vegetation, and food sources. This book brings together various disciplines involved in observing bird species come into existence, modify, and vanish. It is a rich resource for bird enthusiasts who want to understand various processes at the cutting edge of current research in more detail. At the same time it offers students the opportunity to see primarily unconnected, but booming big-data approaches such as genomics and biogeography meet in a topic of broad interest. Lastly, the book enables conservationists to better understand the uncertainties surrounding “species” as entities of protection.
Author:
Publisher: World Bank Publications
ISBN: 0821386239
Category : Business & Economics
Languages : en
Pages : 256
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Book Description
The process of rural-urban transformation presents both opportunities and challenges for development. If managed effectively, it can result in growth that benefits everyone; if managed poorly, it can lead to stark welfare disparities and entire regions cut off from the advantages of agglomeration economies. The importance of rural-urban transition has been confirmed by two consecutive World Development Reports: WDR 2008 Agriculture for Development; and WDR 2009 Reshaping Economic Geography. Focusing on Sub-Saharan Africa and South Asia, this book picks up where the WDRs left off, investigating the influence of country conditions and policies on the pace, pattern, and consequences of rural-urban transition and suggesting strategies to ensure that its benefits results in shared improvements in well-being. The book uncovers vast inequalities, whether between two regions of one country, between rural and urban areas, or within cities themselves. The authors find little evidence to suggest that these inequalities will automatically diminish as countries develop: empirical and qualitative analysis suggests that spatial divides are mainly a function of country conditions, policies and institutions. By implication, policymakers must take active steps to ensure that rural-urban transition results in shared growth. Spatially unbiased provision of health and education services is crucial to ensuring that the benefits of transition are shared by all. But connective infrastructure and targeted interventions also emerge as important considerations, even in countries with severely constrained fiscal and administrative capacity. The authors suggest steps for navigating the tricky political economy of land reforms. And they alert readers to potential spillover effects that mean that policies designed for one space can have unintended consequences on another. Policymakers and development experts, as well as anyone concerned with the impact of rural-urban transition on growth and equity, will find this book a thought-provoking and informative read.
Author: Linda Mayes
Publisher: Cambridge University Press
ISBN: 1139536168
Category : Psychology
Languages : en
Pages : 741
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Book Description
Families, communities and societies influence children's learning and development in many ways. This is the first handbook devoted to the understanding of the nature of environments in child development. Utilizing Urie Bronfenbrenner's idea of embedded environments, this volume looks at environments from the immediate environment of the family (including fathers, siblings, grandparents and day-care personnel) to the larger environment including schools, neighborhoods, geographic regions, countries and cultures. Understanding these embedded environments and the ways in which they interact is necessary to understand development.
Author: World Health Organization
Publisher: World Health Organization
ISBN: 9241208945
Category : Cooking
Languages : en
Pages : 267
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Book Description
This report issues a call for urgent action to combat the growing epidemic of obesity, which now affects developing and industrialized countries alike. Adopting a public health approach, the report responds to both the enormity of health problems associated with obesity and the notorious difficulty of treating this complex, multifactorial disease. With these problems in mind, the report aims to help policy-makers introduce strategies for prevention and management that have the greatest chance of success. The importance of prevention as the most sensible strategy in developing countries, where obesity coexists with undernutrition, is repeatedly emphasized. Recommended lines of action, which reflect the consensus reached by 25 leading authorities, are based on a critical review of current scientific knowledge about the causes of obesity in both individuals and populations. While all causes are considered, major attention is given to behavioural and societal changes that have increased the energy density of diets, overwhelmed sophisticated regulatory systems that control appetite and maintain energy balance, and reduced physical activity. Specific topics discussed range from the importance of fat content in the food supply as a cause of population-wide obesity, through misconceptions about obesity held by both the medical profession and the public, to strategies for dealing with the alarming prevalence of obesity in children. "... the volume is clearly written, and carries a wealth of summary information that is likely to be invaluable for anyone interested in the public health aspects of obesity and fatness, be they students, practitioner or researcher." - Journal of Biosocial Science
Author: Somik V. Lall
Publisher: World Bank Publications
ISBN:
Category : Mercado de trabajo - Paises en desarrollo
Languages : en
Pages : 63
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Book Description
"The migration of labor from rural to urban areas is an important part of the urbanization process in developing countries. Even though it has been the focus of abundant research over the past five decades, some key policy questions have not found clear answers yet. To what extent is internal migration a desirable phenomenon and under what circumstances? Should governments intervene and, if so, with what types of interventions? What should be their policy objectives? To shed light on these important issues, the authors survey the existing theoretical models and their conflicting policy implications and discuss the policies that may be justified based on recent relevant empirical studies. A key limitation is that much of the empirical literature does not provide structural tests of the theoretical models, but only provides partial findings that can support or invalidate intuitions and in that sense, support or invalidate the policy implications of the models. The authors' broad assessment of the literature is that migration can be beneficial or at least be turned into a beneficial phenomenon so that in general migration restrictions are not desirable. They also identify some data issues and research topics which merit further investigation. "--World Bank web site.
Author: Jacob Riis
Publisher: Applewood Books
ISBN: 145850042X
Category : History
Languages : en
Pages : 322
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Book Description
Author: Marianne Fay
Publisher: World Bank Publications
ISBN: 9780821360699
Category : Business & Economics
Languages : en
Pages : 284
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Book Description
About half of the region's poor live in cities, and policy makers across Latin America are increasingly interested in policy advice on how to design programmes and policies to tackle poverty. This publication argues that the causes of poverty, the nature of deprivation, and the policy levers to fight poverty are, to a large extent, site specific. It therefore focuses on strategies to assist the urban poor in making the most of the opportunities offered by cities, such as larger labour markets and better services, while helping them cope with the negative aspects, such as higher housing costs, pollution, risk of crime and less social capital.
Author: Shunlin Liang
Publisher: John Wiley & Sons
ISBN: 0471723711
Category : Technology & Engineering
Languages : en
Pages : 562
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Book Description
Processing the vast amounts of data on the Earth's land surface environment generated by NASA's and other international satellite programs is a significant challenge. Filling a gap between the theoretical, physically-based modelling and specific applications, this in-depth study presents practical quantitative algorithms for estimating various land surface variables from remotely sensed observations. A concise review of the basic principles of optical remote sensing as well as practical algorithms for estimating land surface variables quantitatively from remotely sensed observations. Emphasizes both the basic principles of optical remote sensing and practical algorithms for estimating land surface variables quantitatively from remotely sensed observations Presents the current physical understanding of remote sensing as a system with a focus on radiative transfer modelling of the atmosphere, canopy, soil and snow Gathers the state of the art quantitative algorithms for sensor calibration, atmospheric and topographic correction, estimation of a variety of biophysical and geoph ysical variables, and four-dimensional data assimilation
