浅谈山区高等级公路的边坡防护设计

我国高等级公路边坡防护的研究起步较晚,至今仍处于不断完善和改进当中。本文简要介绍了高等级公路边坡防护设计工作在我国的发展状况以及边坡破坏的主要形式和原因,并对设计工作中应注意的问题以及具体措施进行了探讨。     

Comparative Advantage Indices of Selected Livestock Production Sectors in Brunei Darussalam

Abstract

This study calculates the protection rates and comparative advantage indices of livestock industry in Brunei from an import substitution perspective. Four livestock sub-sectors were being evaluated: broiler, layer, goat and beef cattle. Two measures of government intervention indices were calculated, namely nominal protection rate (NPR) and effective protection rate (EPR). Domestic resource cost (DRC) and resource cost ratio (RCR) indices were computed to determine the comparative advantages of the livestock industry. In general, the results indicate that the livestock industry in Brunei was heavily protected. The study revealed the existence of comparative advantage only for very large farms producing poultry meat and eggs. Similarly in the ruminant sector, goat production appears to have comparative advantage over beef cattle. Small and medium poultry farms and large non-ruminant farms and cattle beef production possess comparative disadvantage despite being highly protected industries.     

物料流量会计的深化——利用MFCA与LCA的整合评估外部损害成本

物料流量成本会计(MFCA)是一种环境管理会计运用工具,也是企业高级管理人员和现场生产经理制定决定的一种工具.MFCA通过减少废弃物来实现提高生产能力的目标.MFCA衡量了材料的物量和存量信息,即在生产过程中的原材料、备品备件以物流和货币的单位表示出来,将MFCA与生命周期评价(LCA)整合,以此来评估外部损害成本.     

浅析油气储运过程所存在的问题及处理方式

油气储运过程中存在大量的问题,例如油气储运系统中对腐蚀情况的监测与防护、油气运输过程中的蒸发损耗与回收、静电处理等。这些问题都在间接影响我国经济的健康发展。     

未决羁押制度研究

未决羁押制度是各国刑事诉讼活动中普遍适用的剥夺刑事被追诉人人身自由的强制措施，其具体是指有关刑事追诉机关在法院终局判决之前对被追诉人按照刑事诉讼法律相关规定予以羁押的刑事诉讼活动。无论是大陆法系还是英美法系均从保障被追诉人人权角度出发广泛建立了未决羁押制度，以期通过严格的法律程序防止羁押权滥用与保障被追诉人人身自由。然而中国迄今为止没有较完整意又上的未决羁押制度，而且出现了羁押权行使没有独立的司法审查机制介入等问题。因此确有必要对中国的未决羁押制度进行完善，从而实现刑事诉讼程序意义上的保障人权。     

我国湖泊水环境中有机氯农药污染的研究进展

有机氯农药(OCPs)是一类对人体和生物具有高毒性的持久性有机污染物,它可通过食物链富集对人体健康产生威胁。总结分析了我国近年来OCPs在湖泊水环境中的残留水平及分布特征,为政府部门评价持久性有机污染物对我国湖泊环境污染状况以及开展污染物区域治理提供决策依据。     

环境保护水平的地区差异及对策研究——基于山东省17地市的实证分析

环境既在一定意义上构成经济增长的前提和基础,又是经济增长的主要目的,甚至环境本身就被当作资源禀赋和财富。近年来,山东省环境保护水平有了明显提高,但地区差异较大。本文采用因子分析和聚类分析法,对山东省17地市的环境保护水平进行了综合性评价,以期为环境保护水平的提高提供理论依据和对策建议。     

包容性增长理念的经济法考量——基于农民权益保护的视角

“包容性增长”理念作为我国未来的执政理念，其利益共享与权利平等的核心要义正契合了经济法的价值追求。面对我国农民利益产生与权益维护的双重窘境，“包容性增长”理念为农民权益保护提供了全新视角，而在“包容性增长”理念的指导下，经济法通过完善的制度设计与科学的立法，必然为农民权益保护做出更大贡献。     

Slippage Effects of the Conservation Reserve Program

Each year, billions of dollars of public funds are expended to purchase conservation easements on farmland. One unintended impact of these programs is that they may bring non-cropland into crop production. Such a slippage effect can be caused by increased output prices and by substitution effects. This article shows that for each one hundred acres of cropland retired under the Conservation Reserve Program (CRP) in the central United States, twenty acres of non-cropland were converted to cropland, offsetting 9 and 14% of CRP water and wind erosion reduction benefits, respectively. Implications of these results for the design of conservation programs are discussed.     

Weak Disposability in Nonparametric Production Analysis: Reply to Färe and Grosskopf

Färe and Grosskopf (this issue) claim that a single abatement factor suffices for modeling weak disposability in nonparametric production models, and that the Kuosmanen (2005) technology that uses multiple abatement factors is larger than necessary. This article demonstrates by a numerical example that a single abatement factor does not suffice to capture all feasible production plans, and that its use leads to the violation of convexity, one of the maintained assumptions of the model. We also prove that the Kuosmanen technology is the correct minimum extrapolation technology under the stated axioms.