Poverty Reduction in China： The Contribution of Popularizing Primary Education

Using the instrumental variable model and the regression discontinuity approach,this paper explores how access to primary education affects the Chinese labor market and helps people to escape poverty.Several important findings are obtained.The popularization of primary education has significantly reduced poverty in China,especially in urban areas.In contrast,the Compulsory Education Law has not been well implemented for older children in rural areas.In addition,the labor market premium for completing primary education is much larger in urban areas than in rural areas.Poor rural school quality might explain this rural-urban disparity.Effort needs to be made to further reduce poverty by ensuring adequate financial resources for primary education in poor areas and improving school quality in rural China.     

双差数列的几个性质

讨论了双差数列与周期双差数列的通项公式以及求和公式。     

体育教育专业学生成绩评价体系构建

采用文献资料法、问卷调查法结合统计学和计算机知识,构建了体育教育专业学生排球普修课成绩评价体系,该评价体系对今后的教学具有指导作用。     

浅谈如何做好消防搜救犬培训基地化建设教学与训练工作

近年来消防搜救犬各类灾害救援中发挥了越来越重要的作用,关于建立全国性的消防搜救犬培训基地的方案也逐步实施。本文就如何更好地组织基地的培训教学工作,浅谈了培训教学要从实战的角度出发;如何建立健全一套科学而完整的培训教学计划;努力提高培训教学水平等方面做了介绍。     

长输管道工程竣工资料管理工作分析

文章通过结合自身工作的实际情况,分析了在竣工资料管理工作中存在的问题,并对相关问题提出了解决方案,在实践中取得了较好的效果,一定程度上解决了竣工资料管理工作中出现的问题,达到了资料编制及时、规范的目的。     

Specialization or diversification? The situation and transition of households’ livelihood in agricultural heritage systems

Zhagana Agriculture-Forest-Animal Husbandry Composite System (ZCS) is the first Globally Important Agricultural Heritage Systems site in the Tibetan Plateau. Similar to many traditional agricultural regions, with the development of tourism and leisure agriculture, the peasant households in ZCS have gradually changed their livelihood strategies and livelihood activities in the past 10 years, resulting in the disappearance of some traditional farming methods and agricultural landscapes with a long history. By taking livelihood assets as the entry point and livelihood strategies as the core, this paper analyzed the basic situation of households’ livelihood and the transition mechanism of different livelihood strategies in order to offer suggestions for the dynamic conservation and sustainable development of Agricultural Heritage Systems (AHS). (1) The livelihood strategies of peasant households in ZCS can be divided into two major categories: specialized strategies and diversified strategies. (2) According to the empirical calculation of the livelihood asset accounting framework of AHS, the average livelihood asset value of peasant households in ZCS is 2.040, showing that the situation of peasant households’ livelihood is inadequate. (3) The transition of peasant households’ livelihood strategies from traditional strategy to specialized or diversified livelihood strategies is mainly influenced by natural assets, human assets, cultural assets, social assets and informational assets. In order to meet the growing material and spiritual needs of peasant households and achieve the sustainable development of ZCS simultaneously, it is suggested that the agriculture-forestry-animal husbandry-tourism composite strategies shall be taken as the development direction of peasant households’ livelihood strategies.     

The welfare effect of income tax deductions for losses as insurance: Insured- versus insurer-sided adverse selection

Kaplow (1992) shows in a complete-information environment that allowing income tax deductions for losses as partial insurance is undesirable in the presence of private insurance markets. This paper elaborates on Kaplow's finding by studying two extreme types of asymmetric information structures in private insurance markets: Either the insured or insurers possess superior information. It is shown that our derived result is consistent with Kaplow's if the insured have superior information; however, Kaplow's negative conclusion with respect to the income tax deduction will be overturned if insurers have superior information instead. A policy implication from our finding is that whether or not to allow an income tax deduction for losses needs to be more refined and, specifically, it should be tailored to the “adverse selection” information structures of private insurance.     

浅谈新课程标准下数学课堂教学的优化

新课标重在培养学生的自学能力、动手能力及实践探索能力,对教师的教和学生的学都提出了新的要求。为了较好的贯彻新课标的要求,要在课堂教学中下功夫,进行课堂教学优化设计。文章结合具体的教学经验,提出了数学课堂进行教学优化设计的具体方法和措施,以及提高学生主动性和创新性的方法。     

立板补焊试件的焊接工艺

根据第三届全国职工职业技能大赛立板补焊项目的培训经验,介绍此项目的操作方法及具体工艺措施。焊后经检测,焊缝外观成形及无损探伤均满足相关标准要求。     

依托企业开展高等职业教育

围绕产业结构调整升级的需求,优化专业布局,改革职业教育的管理体制和办学体制,推进校企深度合作,以素质培养和职业技能为根本,以提高教育质量为核心任务,加强内涵建设,积极探索人才培养新模式。