努力适应新形势 积极迎接新挑战——论当前房地产市场的现状与发展

本文在分析当前房地产市场现状的基础上,探讨如何注重居住环境的品质;优化户室结构的多种类型;积极发展小高层建筑;塑造别致独特的形象;留意住宅建设的可持续性发展。     

监理企业面临的问题和挑战

分析了当前我国建筑工程监理面临的问题,针对性地提出了解决目前问题的途径与建议,提出了监理企业谋求发展,求新求交的新思路,强调了监理企业应加快转型步伐,建立全过程监理服务体系.     

新建居住社区配套设施存在的问题及规划对策

正居住社区配套设施的完善程度与居民生活质量密切相关。本文分析了限制配套设施发展问题的根本原因,并提出相应对策,以提高新建住宅社区配套设施建设水平,最终实现提高居民生活质量的目标。中国经济快速发展,人均收入得到很大提高,人们逐渐将居住环境和配套设施纳入了购房所要考虑的问题。然而,目前我国大多数居住社区配套设施仍然不完善,相应的管理规范也并不健全。对于现     

《行政许可法》带给消防行政许可的机遇与挑战

从5个方面分析了《行政许可法》带给消防行政许可的机遇与挑战,探讨了消防技术规范溯及力,展望了消防中介机构的发展前景,提出了按照《行政许可法》改进消防行政许可实施行为的建议。     

太阳能照明迎来快速发展新时代

众所周知,太阳的能源非常巨大,大约40分钟照射在地球上的太阳光所产生的能量相当于全球人类一年消耗的能量。可以说太阳能是真正取之不尽、用之不竭的能源。目前,全球能源危机日益加剧,各国都在寻找新的能源,以取代即将枯竭的煤、石油、天然气等地球上所剩无几的不可再生能源。作为新型照明方式之一,在未来的照明行业中将起主导作用的太阳能,已成为照明行业乃致整个社会所思考和关注的焦点。     

房产新政给工程管理带来的契机

介绍了房地产开发商的内部管理现状,分析阐述了目前工程管理中遇到的新情况和新问题,并提出了提高工程管理水平的几点建议,从而不断提高工程管理水平,使企业的核心竞争力得到提高。     

村庄整治：新时期的机遇与挑战

党的十六届五中全会和“十一五”规划建议提出了建设社会主义新农村的重大历史任务。村庄整治作为社会主义新农村建设的核心内容之一,建设系统负有重大责任。如何才能有条不紊、积极稳妥、规范有序地推动这项工作的开展,做到既不侵犯农民利益、不伤害农民,还要让农民切切实实感受到党和政府给予的实惠,成为摆在建设行政主管部门面前的严峻任务。村镇建设迎来前所未有的机遇与挑战党的十六届五中全会提出“建设社会主义新农村”,主要是对“十一五”期间农业、农村、农民工作的统领,战略目标是十六大提出的全面建设小康。但是,这一个统领的要…     

Methylmercury and the health of indigenous peoples: a risk management challenge for physical and social sciences and for public health policy

Methylmercury in aquatic ecosystems and bio-accumulated in aquatic biota, especially fish, is a major public health concern internationally. Precautionary efforts are currently underway internationally to reduce the anthropogenic release of mercury, which in turn, over time, will reduce human exposure. However, at the present time, it is important to address the issue of management of the risks of exposure as they exist now. Of particular concern are the impacts of methylmercury on indigenous populations which depend on fish as a subsistence food source, both in remote areas of developed countries, such as Canada, and in developing countries such as Brazil. Research into these impacts over the past two or three decades has shown that, other than in very severe pollution situations such as occurred in Minamata, Japan, the direct impacts on human health are difficult to prove. On the other hand, the indirect negative effects of methylmercury on health, mediated through the disruption of lifestyle and eating patterns and the associated socio-cultural and socio-economic consequences among the affected native populations, have, in many cases, been significant. These social factors have raised serious challenges in determining practical public health policies on the issue. Policy development relating to environmental contaminants has been presented, with the problem of assessing the role of the various factors which contribute to the impact on health as a result of socio-cultural disruption. These factors include changes in diet and lifestyle due to methylmercury in the environment and its real or perceived risk. The standard physical sciences risk assessment process, based on the lowest observed adverse effects level (LOAEL) or no observed adverse effects level (NOAEL) used in defining health policies may be seen as over-simplistic theoretical extrapolations when viewed in the context of the concerns of the social sciences. Both approaches, however, have relevance to health policies that address the risks posed by environmental methylmercury. Therefore, the standard physical sciences approach of the past three decades now needs to be linked with the social sciences approach, with its focus on the indirect impacts of exposure to methylmercury, to provide a comprehensive approach to public health policy development. With this objective in mind, this paper reviews methylmercury-related data from both physical and social sciences. It attempts to draw on the findings in both disciplines to provide suggestions for an integrated approach in policy development relating to human health and human exposure to methylmercury, especially among indigenous peoples in remote areas and in developing countries. An integrated approach such as this may help to limit adverse health effects in the indigenous communities affected.     

Wind engineering challenges of the new generation of super-tall buildings

The new generation of tall buildings is going much higher than before. This poses new challenges for wind engineering. The boundary layer models in many building codes and standards have served well for buildings less than about 300 m but more realistic models need to be used above 300 m. The statistics of upper level winds need also to be known with better certainty. New tools such as the archived global re-analysis data coming from weather forecast models can help shed more light on the upper level wind statistics. There are also questions to be answered about the effects on all tall buildings of non-synoptic wind profiles such as occur in thunderstorm downbursts and the Shamal winds of the Middle East. For the super-tall buildings wind tunnel testing is often commenced much earlier in the design than for lesser buildings. This permits the results to be used in a pro-active way to shape both the architectural design and structural design. The wind tunnel methods used include the force balance technique, aeroelastic modeling, high frequency pressure integration tests, as well as the traditional pressure model and pedestrian wind studies. A super-tall building pushes the limits of the force balance method due to difficulties in maintaining sufficient model stiffness and in accounting for the influence of higher modes of vibration. Since the impact of wind on people using terraces and balconies increases with building height, it is an issue needing particular attention for super-tall buildings.