GC/MS法快速分析鱼塘水中的硫丹

目的建立一种快速、高效、便捷、绿色的分析方法来分析鱼塘水中的硫丹。方法在该实验中采用分散液液微萃取的方法来提取鱼塘水中的硫丹,该方法是一个新型的预处理方法,首先将最合适的分散剂和萃取剂快速的注射到样品溶液中,随即形成了悬浊液。由于在悬浊液中萃取剂能迅速的分散到样品溶液中并与被分析物充分接触,被分析物能很快的从样品溶液中转移到萃取剂中完成萃取过程,经过离心后,沉积物直接用GC-MS进行分析。同时还对本方法中分散剂和萃取剂种类、用量以及萃取时间等重要的实验参数进行考察优化。结果在优化的实验条件下,鱼塘水中硫丹的回收率基本能达到90%以上,检出限为0.005μg/m L,定量限为0.017μg/m L,在0.02~0.20μg/m L的z范围内线性关系良好。结论该方法的准确度和精密度较好,操作简便、快捷、绿色环保,能够基本适合鱼塘投毒案件中硫丹的分析检测。     

公共政策绩效损失的实证分析--以G省农业水价综合改革政策为例

绩效管理的核心目的是改进绩效,而绩效损失这一分析视角业已成为审视绩效生产与绩效提升的一个重要维度。以G省农业水价综合改革政策为例,对“治理缺陷型”和“价值偏离型”两类绩效损失的生成机理与影响因素进行分析。研究发现:两类绩效损失是在公共政策组织管理系统和公共价值建构系统中交互形成的,其公共价值因素与组织管理因素相互影响,共同作用于整体绩效损失的生成;其中,社会价值建构缺失构成了整体绩效损失生成的逻辑起点。此外,在绩效损失的生成过程中,经济发展水平和自然区位要素与其他影响因素耦合互动,并对绩效损失产生“放大效应”。未来应进一步开展相关的定量研究以探索绩效损失形成的关键区域,并提出具有针对性与可行性的矫正策略和治理路径。     

Water privatization,hegemony and civil society: What Motivates Individuals to Protest About Water Privatization?

The article takes the case of protest against water privatization in Ireland to show that protestors with high levels of instrumental motivation as opposed to ideological motivation are more likely to protest. In order to explain this we uniquely combine Klandermans’ social psychology of protest with Gramsci’s theory of hegemony. By bridging these two bodies of theory, we provide an interdisciplinary account of the reason why protestors serve to uphold the exact power structures they intend to challenge. We argue that for water movements to be successful they must focus equally on both their instrumental and ideological motivations to ensure that power structures are confronted. This would enable movements to devise a coherent counter-hegemonic discourse, which is essential to contest the dominant global hegemony of water marketization.     

Hygienic beauty: discussing Ottoman-Muslim female beauty,health and hygiene in the Hamidian Era

This article examines discussions on Ottoman-Muslim female beauty, health and hygiene in the Hamidian Era (1876–1909). Analysing the Hamidian popular press, advice literature and textbooks for girls, the article argues that these discussions were more than just female ‘physical culture’ debates, involving larger issues of late-Ottoman regeneration. Wars, epidemics, massive migration movements and fluctuations in population pushed the late-Ottoman state to create healthy generations as a productive force to secure the Empire's future in general and the Ottoman Muslim population's welfare in particular. Maintaining good health expanded from a religious obligation into now also becoming a patriotic duty incumbent upon Ottoman subjects knowing and applying modern hygienic principles. Focus on Ottoman-Muslim women's procreativity shifted female beauty into a public discussion, now defined as a reflection of health. The new hygienic beauty discourse distinguished between preserving vs. harming one's health in the face of Western fashions and cosmetics: healthy beauty mirrored a ‘good complexion’.     

用好水土资源需要发扬和借鉴各民族传统文化

水土资源是一种复合的自然资源 ,水土资源各构成要素在地球表面的分布很不均匀 ,致使世界上不管哪个国家、哪个民族在其活动范围内 ,水土资源的构成都各有利弊 ,互有得失。静态地评估水土资源优劣并不能客观地反映一个国家、一个民族的水土资源实情。用好水土资源的关键是针对客观存在的水土资源现实兴利除弊 ,而真正做到兴利除弊就需要发扬各民族传统文化中因地制宜的水土资源利用智慧和技能 ,借鉴其他民族成功的治水治土经验 ,最大限度地发挥自己所掌握的水土资源的利用价值 ,才是获得可持续发展的根本大计。轻视自己的传统文化 ,不愿意学习与借鉴其他民族利用水土资源的智慧和技能 ,是当前水土流失治理中亟待克服的弊端。     

我国城市水污染防治立法中存在的问题及完善的建议

当前我国城市水污染防治立法 ,在监管体制、工业废水和生活废水的控制、地下水资源保护等方面面临许多问题。针对我国城市水污染防治立法中的问题 ,提出完善的建议 ,将有利于我国城市水污染的防治。     

The Political Economy of Water Effluent Charges in France: Why are Rates Kept Low?

The French water effluent charge was set up thirty years ago. However, its design differs significantly with the Pigovian tax envisaged in economic textbooks. In particular, various studies have shown that the tax rate is too low to significantly affect the polluters' behaviour. The paper is a case study of this charge and aims to understand why rates are low. It consists of a careful political economy analysis of the institutional setting through which the water effluent charge is implemented using both historical evidence and simple modelling. The fact that the charge is combined with regulation plays a crucial role in explaining its rate.     

垃圾卫生填埋场复合密封层防渗技术及应用

介绍了垃圾卫生填埋场防渗系统中密封材料HDPE膜及GCL的主要性能及特点。提出在我国应用新的填埋场密封材料GCL ,与HDPE膜组成复合密封层 ,并从防渗性能、价格等方面进行了比较分析 ,同时提出HDPE膜—GCL复合密封层建设规范的建议     

澳、美水权制度对构建我国水权制度的启示

本文通过对澳大利亚和美国水权制度的研究,引发了笔者对我国水权的界定、适用、取得、转让和价格等制度的思考,从而提出了水权应包括水物权和取水权,我国应建立区域性的水权制度,水权的取得包括分配取得和出让取得,组建水银行进行水权转让,水权价格包括出让价、转让价和水费等观点。