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181.
河西地区农牧地域分异与农牧耦合探讨   总被引:1,自引:0,他引:1  
农牧耦合存在两种基本耦合类型:一是特定地域农(牧)生态系统中农牧业生产之间的内部耦合;二是不同地域农(牧)生态系统之间的农牧空间耦合。在对河西地区农牧空间耦合的自然环境、历史发展、现状结构和问题分析基础上,结合对农牧空间耦合的理论探讨,提出了河西地区农牧空间耦合的发展对策。  相似文献   
182.
流动性过剩与股票价格重估   总被引:1,自引:0,他引:1  
高谦  何蓉 《财经科学》2007,(10):16-23
在固定汇率与资本管制框架下,剩余储蓄的持续增加必然导致流动性过剩,对股票市场而言,只有当实体经济持续的剩余储蓄增加引起流动性过剩时,才会推动股票市场估值中枢的剧烈抬升.对近期经济指标的分析表明,股票市场重估将会持续下去,而货币政策紧缩引起的投资下降会进一步扩大剩余储蓄,加快重估的进程.  相似文献   
183.
Cassey Lee 《Economic Modelling》2011,28(5):2121-2128
The aim of this paper is to examine empirically the impact of privatization on water access and affordability in Malaysia using household expenditure data. The development of water sector in Malaysia in terms of coverage has been fairly uneven. Some states have privatized their water supply sector while others have not. The overall finding of this study is that the impact of privatization on access and affordability in the Malaysian water supply sector is ambiguous. Privatization does not seem to have improved access to treated water from network in Malaysia. A likely explanation of this is the role played by the government in the sector in terms of tariff regulation and universal service provision. Furthermore, privatization does not seem to have adversely affected affordability in the sector. In addition to political intervention in tariff regulation, this could be due to the government maintaining a significant stake in privatized water companies.  相似文献   
184.
煤矿机电设备状态的监测与故障诊断可以有效的缓解此问题产生的频率、程度、及设备的故障率,可以增大煤炭企业的安全生产,减少机电事故。本文介绍了煤矿机电设备作业的特点、维修及对设备故障的提前预防的意义,特别强调了机电设备运行状态监测及故障诊断在煤矿安全生产中的应用、发展及不足之处。  相似文献   
185.
Summary

This study provides economic information on the costs of obesity in the UK using a modified method of attributable risk to establish the full resource implications of treating obesity and associated diseases. Prevalence estimates of obesity, defined as a Body Mass Index (BMI) greater than 30 kg/m2, together with estimates of the risk of obesity-related diseases relative to a BMI range close to ideal, are used as the basis of the costing. The total costs of treating obesity and its related diseases are estimated at £355 million (in 1995 prices). The total costs of treating obesity directly, estimated at £3.8 million, are dominated by the costs arising from the treatment of attributable diseases, estimated at £351 million.  相似文献   
186.
森林经营制度是《森林法》的基础性制度,而森林可持续经营的制度化则是生态文明制度建设的重要内容。在《森林法》修改中,森林经营理念、森林分类经营、森林采伐限额、森林经营方案编制与森林生态补偿等问题成为关注焦点。从建设"美丽中国"的时代要求来看,森林可持续经营是谱写"美丽中国"的森林篇章,其制度设计应当服从生态文明制度的整体设计。因此,实现森林的可持续经营,应当成为《森林法》修改的基本任务之一。  相似文献   
187.
This article focuses on the problem of assessing the environmental sustainability of energy projects. For this purpose an original model, which is based on various indicators that measure the environmental sustainability of energy projects, has been developed. This model, so called index of environmental sustainability of energy projects (IESEP), can be used in scenario comparison, while measuring the effectiveness of the proposed alternatives. Finally, an example of how to use this model is provided by analyzing alternatives to ameliorate the environmental sustainability of a hydroelectric project. In doing so, it is possible to show the usefulness of this model when used as a decision making tool for energy planners.  相似文献   
188.
The complexity of policy decision-making raises the need to elicit opinions from large and heterogeneous groups of stakeholders with broad and diverse sets of expertise. Existing options for elicitation include small face-to-face panels of experts by using the Nominal Group Technique (NGT), large Delphi panels whose members do not interact with each other face-to-face, and crowdsourcing, which involves an open call for input issued to a large community of people. In an attempt to close the gap between the practical needs of policy makers and the methodological challenges associated with eliciting opinions of large, diverse, and distributed groups, we have developed a new online elicitation system and methodology called ExpertLens. By optimizing the direct interactions of NGT with the larger number of Delphi participants and the wisdom of “selected crowds,” our approach is designed to save on the costs associated with traditional expert panels, while increasing accuracy in elicitation by reducing the potential for group process losses that can occur in large, diverse, and non-collocated panels whose members interact via asynchronous online discussion boards. The ExpertLens approach is iterative, does not require participants to develop consensus, and determines what the group “thinks” by statistically analyzing data collected in all rounds of the elicitation. This paper describes the ExpertLens system and methodology, briefly discusses recent ExpertLens trials, provides conceptual arguments for why it is an appropriate model for eliciting expert opinions, illustrates its main components and analytics by using an infrastructure investment example, and discusses a research agenda for testing the underlying tenets of the ExpertLens approach.  相似文献   
189.
    
This study examines auditors' use and perception of analytical procedures in Singapore. A total of 100 auditors attached to Big-Six and non-Big Six firms participated in this questionnaire survey. Three-way ANOVA with interactions is performed on the data. The results of the study indicate that analytical procedures (APs) are more prevalently used during the final review stage as opposed to the detailed testing phase of an audit. Further, auditors with high experience and auditors from Big-Six firms tend to use APs to a greater extent than those with low experience and from non-Big Six firms respectively. Simple procedures are more frequently used than sophisticated procedures by all auditors although between the procedures, non-Big Six auditors use the former more frequently than Big-Six auditors while the reverse is true for the latter. Finally, APs were found to be least helpful in detecting fraud or error and most helpful in identifying areas of potential risk.  相似文献   
190.
文章阐述了宣传工作对构建社会主义和谐社会的重要性,并提出宣传工作应在构建社会主义和谐社会中发挥强有力的舆论导向作用。  相似文献   
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