نتایج جستجو برای: land policies

تعداد نتایج: 235399  

2013
Vitaly A. Polunovsky John W.B. Hershey Nahum Sonenberg

We introduce here the inaugural issue of the new scientific journal Translation. The overarching aim of this endeavor is to establish a new forum for a broad spectrum of research in the area of protein synthesis in living systems ranging from structural biochemical, evolutionary and regulatory aspects of translation to the fundamental questions related to post-translational control of somatic p...

2017
Xue Liu Helin Liu Wanzhen Chen Zhonghao Zhang

Given the scarcity of land resources in most Chinese cities, the fragmentation of construction land use is a greater constraint than expansion for urban sustainability. Therefore, there is an urgent need to quantify the fragmentation level of construction land use for planning and managing practices. This study focuses on residential land use, which is one of the most important types of constru...

Journal: :Ecological applications : a publication of the Ecological Society of America 2007
Thomas A Spies K Norman Johnson Kelly M Burnett Janet L Ohmann Brenda C McComb Gordon H Reeves Pete Bettinger Jeffrey D Kline Brian Garber-Yonts

Forest biodiversity policies in multi-ownership landscapes are typically developed in an uncoordinated fashion with little consideration of their interactions or possible unintended cumulative effects. We conducted an assessment of some of the ecological and socioeconomic effects of recently enacted forest management policies in the 2.3-million-ha Coast Range Physiographic Province of Oregon. T...

2014
Daquan Huang Haoran Jin Shenghe Liu Marc A. Rosen

Rapid urban land expansion and the resulting arable land loss have put food security in China at risk. This paper investigates the characteristics and mechanism of arable land conversion in Beijing using a logistic model based on land-use data for 2001 and 2010. The results suggest that (1) arable land conversion tends to occur near built-up areas, city centers and major roads; (2) arable land ...

Onwuchekwa Raphael Iheke, Ukandu Ihuoma

This study examined the effect of urbanization on agricultural production in Abia State. Specifically, it categorized the land tenancy status of the farmers, analyzed the effect of urbanization on agricultural productivity and identified the constraints to agricultural productivity. Multistage random sampling technique was used to select the respondents. Primary data collected using structured ...

2009
John Pucher

In the special issue on bicycling of WTPP (Volume 7, Number 3), Heath Maddox questions the potential of public policies to encourage bicycling. This response to the Maddox critique argues that he seriously misinterpreted the concept of public policy, considering only a small subset of the many policies that can facilitate bicycling. He does not adequately examine the impacts of special cycling ...

2016
Joreintje Dingena Mackenbach Pengjun Zhao Philippa Howden-Chapman

Physical activity has numerous physical and mental health benefits, and active commuting (walking or cycling to work) can help meet physical activity recommendations. This study investigated socioeconomic differences in active commuting, and assessed the impact of urban land-use and public transport policies on active commuting in the Wellington region in New Zealand. We combined data from the ...

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