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排序方式: 共有402条查询结果,搜索用时 15 毫秒
51.
Bas Van Vliet 《Local Environment》2013,18(4):353-366
Network‐bound systems such as water and energy systems are increasingly confronted with environmental problems that cannot be solved without changing their modes of provision. More than any other flow provided through a network‐bound system, the waste water flow comes very close to intimate personal and social life, complicating the introduction of environmental innovations in this sector. Using the concepts of trust and identity, questions concerning changing consumer roles in two cases of Decentralised Sanitation and Reuse Systems in the Netherlands are addressed. In both cases the building of trust within provider networks and between consumers and providers, as well as the possibility for consumers and providers to identify themselves with the aims of the project were key factors determining the success or failure of environmental innovations in waste water flows. 相似文献
52.
Li Fuzhu 《中国人口.资源与环境(英文版)》2013,11(4):59-63
Abstract Human Capital Theory came into being in the middle and later periods of the 20th century. A lot of achievements have been made on the research in its connotation, measures of the value, investment and income, function mechanism and so on, by foreign scholars. In recent 10 years of the new Millennium alternation, the “steal business effect” and the structure of human capital on the mechanism of economic rise has become the two emphasis in current foreign Human Capital Theory's research. On the basis of foreign researches and Chinese situations, domestic scholars have enriched and developed it, but there are many disparities in its methods, aspects and levels between foreign and domestic researches. 相似文献
53.
傅前明 《中国环境管理干部学院学报》2011,(6):25-30
清洁发展机制是应对气候变化国际法律制度之下的补充性履约措施。通过阐述清洁发展机制的渊源、清洁发展机制的实质内涵和基本特征,总结中国清洁发展机制项目实践,揭示中国应用清洁发展机制的偏差,预测清洁发展机制发展方向,指出中国将被迫退出清洁发展机制,提出中国面向清洁发展机制的具体对策。 相似文献
54.
重庆市地质灾害孕灾环境分区研究 总被引:1,自引:0,他引:1
为探索重庆市地质灾害孕灾环境分布情况,以重庆市主要地质灾害为研究对象,在分析孕灾因子基础上,选取暴雨强度、地貌条件、地质岩性、年均降雨量、植被覆盖度和地质构造条件等6个因子,构建地质灾害孕灾环境分区指标体系,利用层次分析法(AHP)和专家效度相耦合方法确定各指标权重,并建立孕灾环境综合指数评价模型。在ArcGIS软件平台支持下,以1 km×1 km网格尺寸为单位精细获取各指标分析数据,计算得到各网格孕灾环境综合指数值,并根据该值进行重庆市地质灾害孕灾环境等级区划分。结果表明:重庆市地质灾害孕灾环境综合指数值在43~84之间,孕灾分区主要集中在高易发区和中易发区,其中危险区1.29×104 km2,占总面积的15.62%;高易发区4.42×104 km2,占53.68%;中易发区2.38×104 km2,占28.85%;低易发区0.15×104 km2,占1.85%。 相似文献
55.
Problem
Falls in older persons in developing countries are poorly understood, and falls prevention and health promotion programmes for this population are largely lacking.Methods
A systematic review was carried out of relevant literature on falls and prevention programmes, and falls prevention education, and a scan undertaken of health promotion programmes for older persons in a representative country - South Africa.Results
Studies on the risk and prevalence of falls are largely retrospective and hospital-based, with varied methodology, including study period, sampling method and sample size. Falls prevalence is based largely on self-reports in studies on general trauma in all age groups. Falls incidence varies from 10.1% to 54%. No reports could be traced on sustained falls prevention or health promotion programmes.Conclusion
Scant research has been conducted and little preventive education offered on falls in older persons. Adaptation of the Canadian Falls Prevention Curriculum for developing countries will help to fill gaps in knowledge and practice.Impact on industry
With rapid increase in the populations of older persons in developing countries, research on age related disorders such as falls is required to guide policy and management of falls. 相似文献56.
Mohamed Lahlou Dale Colyer 《Journal of the American Water Resources Association》2000,36(5):1003-1012
ABSTRACT: This study examines water consumption characteristics in Casablanca and analyzes approaches for sustainable water demand management. Research procedures involve the development and estimation of water demand models for the residential/commercial, industrial, and institutional sectors; forecasts of water demand to 2010; and simulation of the effects of a complex of water conservation methods on the forecasted demands. The results indicate that residential/commercial water demand is weakly responsive to price changes (elasticity =?0.448) while institutional water demand is slightly more responsive (elasticity =?0.648). The conservation approaches used in the simulations included public education, plumbing code revisions to require use of water conservation devices, leak detection and repair, pricing policy, metering, and pressure reduction. The results indicate that considerable saving in water use can be attained through a comprehensive water demand management program. 相似文献
57.
58.
Eben Goodale Christos Mammides Wambura Mtemi You-Fang Chen Ranjit Barthakur Uromi Manage Goodale Aiwu Jiang Jianguo Liu Saurav Malhotra Madhava Meegaskumbura Maharaj K. Pandit Guangle Qiu Jianchu Xu Kun-Fang Cao Kamaljit S. Bawa 《Ambio》2022,51(6):1474
As the two largest countries by population, China and India have pervasive effects on the ecosphere. Because of their human population size and long international boundary, they share biodiversity and the threats to it, as well as crops, pests and diseases. We ranked the two countries on a variety of environmental challenges and solutions, illustrating quantitatively their environmental footprint and the parallels between them regarding the threats to their human populations and biodiversity. Yet we show that China and India continue to have few co-authorships in environmental publications, even as their major funding for scientific research has expanded. An agenda for collaboration between China and India can start with the shared Himalaya, linking the countries’ scientists and institutions. A broader agenda can then be framed around environmental challenges that have regional patterns. Coordinated and collaborative research has the potential to improve the two countries’ environmental performance, with implications for global sustainability. 相似文献
59.
Mainstreaming risk reduction in urban planning and housing: a challenge for international aid organisations 总被引:2,自引:0,他引:2
Wamsler C 《Disasters》2006,30(2):151-177
The effects of 'natural' disasters in cities can be worse than in other environments, with poor and marginalised urban communities in the developing world being most at risk. To avoid post-disaster destruction and the forced eviction of these communities, proactive and preventive urban planning, including housing, is required. This paper examines current perceptions and practices within international aid organisations regarding the existing and potential roles of urban planning as a tool for reducing disaster risk. It reveals that urban planning confronts many of the generic challenges to mainstreaming risk reduction in development planning. However, it faces additional barriers. The main reasons for the identified lack of integration of urban planning and risk reduction are, first, the marginal position of both fields within international aid organisations, and second, an incompatibility between the respective professional disciplines. To achieve better integration, a conceptual shift from conventional to non-traditional urban planning is proposed. This paper suggests related operative measures and initiatives to achieve this change. 相似文献
60.
茶叶蛋白的研究现状分析及发展对策研究 总被引:2,自引:0,他引:2
茶叶中含有15%—30%的蛋白质,对生物体具有多种重要功能,但其中绝大多数是非水溶性蛋白质,难以直接被人体吸收。目前对茶叶蛋白的研究主要集中在提取工艺上,研究表明用复合法提取的效果最好。为了更好地利用茶叶资源,可通过对非水溶性蛋白改性(溶解性、吸水性、吸油性、乳化性、胶凝性等)来提高人体对茶叶蛋白的利用率,发挥茶叶蛋白的生物功能。 相似文献