未成年子女姓名权的法律思考

姓名权是自然人决定、使用和变更自己姓名的权利。由于行为能力的限制,未成年子女的姓名决定权和变更权让渡给其监护人行使。但由于监护人意志的冲突,实务中经常发生各式各样的子女姓名纠纷,而现行法对这一问题的涉及则明显不足。为此,针对未成年子女姓名权的特殊性、实务中常见的子女姓名纠纷、现行法对该问题的规定等方面试作探讨,以引出处理此类纠纷的法律原则,并尝试提出些许建议。     

对土地及相关资源立体管理的法律制度思考

资源的有效利用是当今社会人类所面临的主要问题之一。近年来理论界对如何建立资源的产权问题及资源权的行使方式等讨论的比较多,但对于资源权行使过程中出现的关联性问题则较少论及。本文从土地资源在资源体系中的核心地位入手,充分考虑各种自然资源在自然属性及法律属性上的关联性,提出借鉴建筑物区分所有权制度建立土地区分使用权制度。这种对土地及相关资源的立体管理模式的建立,有利于提高对各种资源的利用效率。     

借鉴澳大利亚经验努力促使我国房地产市场软着陆

2008年全球性经济危机爆发以来,全球房地产市场受到较大影响。澳大利亚政府采取一系列措施,稳定本国房地产市场。如通过制定非常严格和规范的审批、建造程序防止房地产市场的爆炒;通过控制开发商取得购房款的速度,影响开发商开发周期,以控制房地产市场风险;实施宽松的移民政策,保障在经济萧条时房地产市场外来需求的补充;制定优惠的贷款政策,促进房地产发展;倡导国民制定合理的购房计划等。根据我国当前房地产市场的现状,借鉴澳大利亚房地产调控经验,努力促使我国房地产实现软着陆。     

A quadratic time exact algorithm for continuous connected 2-facility location problem in trees

This paper studies the continuous connected 2-facility location problem (CC2FLP) in trees. Let \(T = (V, E, c, d, \ell , \mu )\) be an undirected rooted tree, where each node \(v \in V\) has a weight \(d(v) \ge 0\) denoting the demand amount of v as well as a weight \(\ell (v) \ge 0\) denoting the cost of opening a facility at v, and each edge \(e \in E\) has a weight \(c(e) \ge 0\) denoting the cost on e and is associated with a function \(\mu (e,t) \ge 0\) denoting the cost of opening a facility at a point x(e, t) on e where t is a continuous variable on e. Given a subset \(\mathcal {D} \subseteq V\) of clients, and a subset \(\mathcal {F} \subseteq \mathcal {P}(T)\) of continuum points admitting facilities where \(\mathcal {P}(T)\) is the set of all the points on edges of T, when two facilities are installed at a pair of continuum points \(x_1\) and \(x_2\) in \(\mathcal {F}\), the total cost involved in CC2FLP includes three parts: the cost of opening two facilities at \(x_1\) and \(x_2\), K times the cost of connecting \(x_1\) and \(x_2\), and the cost of all the clients in \(\mathcal {D}\) connecting to some facility. The objective is to open two facilities at a pair of continuum points in \(\mathcal {F}\) to minimize the total cost, for a given input parameter \(K \ge 1\). This paper focuses on the case of \(\mathcal {D} = V\) and \(\mathcal {F} = \mathcal {P}(T)\). We first study the discrete version of CC2FLP, named the discrete connected 2-facility location problem (DC2FLP), where two facilities are restricted to the nodes of T, and devise a quadratic time edge-splitting algorithm for DC2FLP. Furthermore, we prove that CC2FLP is almost equivalent to DC2FLP in trees, and develop a quadratic time exact algorithm based on the edge-splitting algorithm. Finally, we adapt our algorithms to the general case of \(\mathcal {D} \subseteq V\) and \(\mathcal {F} \subseteq \mathcal {P}(T)\).     

属性关系与诊断测验分类影响的探讨

认知诊断模型-DINA模型假定属性之间是相互独立、非补偿的关系,但在实际应用中,属性之间有可能存在补偿关系.文章探讨了在不同的被试总体下,DINA模型在属性之间独立和存在补偿关系时作答数据上的表现,结果表明,当测验中有部分属性间存在补偿关系时,会给DINA模型诊断分布带来较大的影响,在固定其他条件(被试人数、随机因子)条件下,存在和不存在补偿作用所导致的诊断分类率之间有显著差异,且在不同大小补偿作用下,诊断分类率之间的差异显著;随着随机因子的增加,不同大小的补偿因子所导致的诊断分类率之间的差异会变小,补偿因子和随机因子之间存在着显著的交互作用.     

青少年公民教育的发展脉络、现实问题与未来方向

青少年公民教育是新时期促进国家发展,增加国家实力的基本保障。由于相关概念内涵的模糊不清、推行机制的不完善等原因,导致了我国青少年公民教育的理论体系和实施体系建设的相对滞后。直至20世纪90年代以后在国际和国内环境的双重推动下。青少年公民教育才开始有了实质性的发展和推进:同时也存在着理论体系建构滞缓、教学理念混淆、课程衔接乏力、教育内容知行脱节等现实问题。构建一个适应时代发展需求,符合青少年身心发展特征。校内外有机结合的积极有效的青少年公民教育体系成为了新时期发展青少年公民教育的重要任务。     

The Human Capital Model of Selection and Immigrant Economic Outcomes

This article examines the trends in the economic advantage that highly educated immigrants hold over less educated immigrants in Canada, focusing on the differences between short‐run and longer‐run outcomes. Using data from the Longitudinal Immigration Database covering the period from the 1980s to the 2000s, this study finds that the relative entry earnings advantage that higher education provides to new immigrants has decreased dramatically over the last 30 years. However, university‐educated immigrants had a much steeper earnings trajectory than immigrants with trades or a high school education. The earnings advantage among highly educated immigrants increases significantly with time spent in Canada. This pattern is observed for virtually all immigrant classes and arrival cohorts. The results suggest that short‐run economic outcomes of immigrants are not good predictors of longer‐run results, at least by educational attainment. The implications of these findings for immigration selection policy are discussed in the conclusion.     

家庭背景如何影响儿童学业成就?——义务教育阶段家庭社会经济地位影响差异分析

对于家庭背景与儿童学业成就间的关系,既有研究大多着眼于家庭背景对最终教育获得的影响,但教育获得是一个连续过程,对受教育过程缺少分析,就难以理解家庭背景影响儿童受教育机会的过程性机制。本文通过分析中国家庭追踪调查基线数据(CFPS2010),探讨了家庭背景影响儿童学业成就的路径和机制。本文分析结果表明:(1)家庭通过其社会经济资源为儿童提供有差异的教育机会,进而影响儿童的学业表现;(2)家庭通过家长的教育参与和行为支持,培养儿童的学习态度和学习习惯,从而对其学业成就产生影响。进一步的探讨还发现,家庭背景对儿童学业成就的影响路径和机制具有显著的城乡差别,家庭社会经济地位对城市学生成绩的影响大于对农村学生的影响;相比城市学生而言,农村学生的学业成就更多地依赖于自身的学习行为。本文的研究发现对如何缩小儿童学业成就的阶层差异以及促进教育公平提供了依据。     

践行社会主义荣辱观 形成健康向上的社会风尚

胡锦涛总书记关于树立社会主义荣辱观的重要论述,提出了"八荣"的社会价值导向,明确了"八耻"防微杜渐的警示,树立了社会风尚的道德标杆.高校要旗帜鲜明地倡导"八荣八耻",引导学生自觉践行社会主义荣辱观,这将有利于大学生健康成长,促进校园文化建设和良好社会风尚的形成,推进和谐社会建设.