Compulsory schooling laws and school crime

Extensive literature demonstrates that compulsory schooling laws improve educational attainment, well-being, civic involvement, and labour market outcomes. However, at-risk youth incapacitated to schools may impact the learning environment and school safety. The purpose of this article is to study whether raising the minimum dropout age (MDA) requirement above 16 increases crime committed within US public high schools. A difference-in-difference estimation exploits changes in state-level MDA laws over time and indicates that schools in states that raise their MDA requirement to 18 incur more overall crime relative to schools in states that do not, while no effect on overall crime is identified when the MDA requirement is raised to 17. Furthermore, these effects persist for 4 years after passage and more intensely in metropolitan areas. Coupling this research with existing literature suggests that when the MDA requirement is raised to 18, only a small portion of the observed reduction in juvenile crime is displaced to schools. Analysis by category of crime reveals schools incur more physical attacks, no change in illegal drug and property crimes, and fewer violent crimes in states that raise their MDA requirement to 18, while illegal drug crimes increase in states that raise their MDA requirement to 17.     

会泽县农村饮水安全建设探讨

会泽县饮水安全建设滞后,资金投入短缺,水资源利用率低。从3方面提出了解决饮水安全的途径,即改进工作作风,形成干群互动互助环境;构建保障农村饮水安全的水资源管理体系;公平分配水资源,改善人居环境,共建生态文明。     

太阳能光伏产业可持续发展理论研究思考

从太阳能光伏产业发展出发,结合产业组织理论与可持续发展理论,提出太阳能光伏产业可持续发展理论研究体系,包括太阳能光伏产业可持续发展的基本内涵、资源配置、理论模式、运行机制等;我国太阳能光伏产业发展的物质基础、技术基础、现状、障碍及风险预测预警机制;从核心竞争力、核心技术研发及全球化等方面实现我国太阳能光伏产业可持续发展战略路径选择。太阳能光伏产业可持续发展理论的研究,对深化再生能源健康发展、规范可再生能源市场、保障能源安全、丰富产业经济学与能源经济学具有重要的理论与实践价值。     

计算机网络安全及其防范措施探讨

随着计算机技术的飞速发展和计算机深入到各行各业,尤其是互联网应用已经成为民众生活中不可缺少的一个部分,网络安全问题越来越重要。如何设计一个稳定、可靠、安全和经济的网络是大家共同关心的问题,而如今网络的开放性也使数据具有多方面的安全威胁。     

汶川地震对碧口等三座大坝的震损及修复工作综述

汶川地震对碧口、麒麟寺及苗家坝水电站均造成了不同程度的损伤.对震损部位修复工作的组织设计和实施效果进行评价探讨,为类似工程的修复提供参考.     

From mutual recognition to mutual scientific opinion? Constitutional framework for risk analysis in EU food safety law

Regulation 178/2002 (the so-called General Food Law – GFL) codifies risk analysis as the core principle of the modern food safety policy. This article places the GFL in EU multi-level food safety governance and analyses the impact of risk analysis, the precautionary principle and mechanisms of scientific governance introduced by the GFL on both national and Community legislation. It discusses the case law of the European Courts dealing with scientific evidence and the precautionary principle applied to both European and national food safety measures. The article concludes with some observations on the role of the risk analysis methodology in the Community internal market.     

职业安全规制问题研究:基于法经济学的视角

控制和减少职业伤害,救济遭受职业伤害的劳动者,维护职业安全,是任何一个民主、法制、健康和谐的社会必须高度重视的社会经济问题,也是政府实施社会性规制的重要领域。我国国民经济高速增长的背后隐藏着巨大的社会成本,包括越来越严重的职业安全问题。各类生产安全事故的频繁发生,职业病发病人数的不断增加,折射出我国劳工状况不容乐观、劳动者权利未能得到有效保护的现实。在建设社会主义和谐社会的大背景下,应该从完善政府社会性规制入手寻求破解之道。     

基于食品安全视角的食品企业社会责任浅析

食品安全是食品企业的首要社会责任,近年来接连发生的食品安全事故,凸显了我国食品企业在食品安全方面社会责任的严重缺失。通过介绍企业社会责任理论,分析了我国食品企业社会责任缺失的原因,并提出以食品安全为核心推进食品企业社会责任建设的建议。     

干挂石材幕墙的设计

干挂石材幕墙是建筑幕墙的一种类型,近年来在国内高层建筑外墙装修中得到广泛应用。结合工程实例,文章从安全施工原则出发,通过对干挂石材幕墙的构造、结构设计、主要材料的选用及其施工工艺等环节进行论述,阐述了干挂石材幕墙深化设计过程。     

金牛坪水电站二期泄水闸坝牛腿预制砼底模施工方案

金牛坪水电站二期泄水闸坝牛腿施工采用预制砼底模的施工方法,加快了施工进度,保证了金牛坪水电站二期工程的顺利完成。