倾向度匹配、救助依赖与瞄准机制——基于社会救助制度实施效应的经验分析

为更好地了解社会救助制度实施状况,笔者第一次尝试性地利用实际调查微观住户数据资料,结合倾向度匹配方法分析了目前中国社会救助体系对贫困家庭的瞄准机制、实施效果等问题。分析结果显示,中国社会救助方式在经济和社会体制转型过程中产生了显著性的改变。并且从"救助依赖"产生的视角来看,中国社会救助制度在设定的过程中能在一定程度上规避制度本身产生的"救助依赖"问题。针对这个问题我们分析了受助群体再就业家庭对社会救助制度待遇高低的反应,通过其再就业行为的变化,提出了规避受助家庭成员在再就业市场上产生的负面影响,从而更好地促进社会救助制度实施正面效应。     

A TRIO BANDS TOGETHER

正It’s time for Beijing to lose some economic weight and synergize with neighboring Tianjin and Hebei Province By Deng Yaqing JOINT RECRUITMENT:A talent exchange fair for the Jing-Jin-Ji region is held at China International Science and Technology Convention Center in Beijing on April 23     

卡宾达危机：下一个南苏丹？——浅析安哥拉的卡宾达问题

卡宾达“独立”运动是现代非洲政治中历史最为悠久的分离主义势力之一，自安哥拉独立建国以来长期威胁该国的主权与领土完整。在具有相似性质的南苏丹分离运动于2011年走向全面胜利的背景下，这个困扰刚果河口地区近40年的历史遗留问题将何去何从是值得关注的。本文将在结合南苏丹独立所依赖的一系列条件的基础上，分析影响卡宾达危机发展的各种既有因素，同时讨论南苏丹现象发酵后可能给卡宾达问题的解决带来的新的不确定性。卡宾达未来是否能够成为第二个南苏丹将依赖于各方力量的最终博弈。     

Congenital tetragametic blood chimerism explains a case of questionable paternity

Human chimerism is the presence of ≥ 2 cell populations in one person that contain genetic material from more than one zygote. Chimerism may be either acquired by transfusion or transplantation of donor cells, or congenital arising from embryo fusion or dizygotic twin-twin transfusion. We encountered a 4-year-old boy with developmental hip dysplasia whose preoperative (serologic) blood group was AB, but whose red cell agglutination was atypical ("mixed field") and caused us to study the patient's parents' ABO blood groups. Parental blood groups (AB and O) suggested possible nonparentage. An alternative explanation of the findings was that the child was chimeric or mosaic. Molecular cloning and genotyping of his ABO locus in leukocytes revealed two heterozygous genotypes: A102/O01 and B101/O01. Other loci, each of which possessed three distinct alleles, unambiguously showed transmission of two alleles from either the child's mother (e.g., HLA-A) or two alleles from the child's father (e.g., D8S1179). Findings indicate that the child is a tetragametic chimera.     

A novel skull registration based on global and local deformations for craniofacial reconstruction

Craniofacial reconstruction is important in forensic identification. It aims to estimate a facial appearance for human skeletal remains using the relationship between the soft tissue and the underlying bone structure. Various computerized methods have been developed in recent decades. An effective way is to deform a reference skull to the discovered skull, and then apply the same deformation to the skin associated with the reference skull to provide an approximate face for the discovered skull. For this method, the better the two skulls match each other, the more face-like the reconstructed skin surface will be. In this paper, we present a novel skull registration method that can match the two skulls closely, so as to improve the accuracy of the reconstruction. It combines both global and local deformations. A generic thin-plate spline (TPS)-based deformation, which is global, is applied first to roughly align the two skulls based on two groups of manually defined landmarks. Afterwards, the two skulls are largely matched, except some regions, on which some new landmarks are automatically marked. A compact support radial basis functions (CSRBF)-based deformation, which is local, will then be performed on these regions to adjust the initial alignment of the two skulls. Such adjustment can be repeatedly implemented until the two skulls have optimal alignment. In addition, all the skulls and face involved in the registration are represented by their single outer surfaces to facilitate the reconstruction procedure. The experiments demonstrate that our method can create a plausible face even when the reference skull is very different from the discovered skull. As a result, we can make full use of our database to provide multiple estimates for a principle components analysis (PCA) for the final reconstruction.     

能源立法模式与核心制度选择

拥有较为完备的能源立法是促进可持续发展与保障国家能源安全的重要制度基础。虽然就法律表现形式而言,我国的能源立法已初具规模,但就其内在逻辑关联与制度构建而言,仍有诸多问题有待厘清,因此制定一部统领整个能源法域的基本法已迫在眉睫。我国能源法应当在＂通则式＂、＂政策式＂和＂法典式＂为代表的三种国外能源基本法的立法模式中做出选择并应建立起包括能源规划、管理体制、市场监管、科技创新等制度在内的核心制度群落。     

用于法医学同一认定的额窦CT编码

目的 使用头颅CT图像重建冠状位鼻骨切面研究额窦观测指标,以编制特异的识别编码.方法 通过距离数值量和形态学描述对额窦CT图像进行分析.额窦同一认定识别编码为:右侧额窦部分隔数,形态一额窦中间隔位置,形态一左侧额窦部分隔数,形态;右侧额窦上缘弓形弯曲数(右侧最高峰位置,最低峰位置)-左侧额窦上缘弓形弯曲数(左侧最高峰位...     

排污权转让法律问题研究

排污权是近年来资源物权领域的一项新型制度设计,其确立的目的在于发挥市场机制对于资源配置的利导效用,通过排污权的有序转让,彰显环境容量资源的财产权属性,为环境保护增添一份制度选择。可见,排污权转让是排污权制度建立的目的和归宿。就性质而言,排污权转让是排污权脱离原权利人而归属于他人享有的法律现象,应与排污合同债权让与和排污指标买卖相区别;就要件而言,因排污权负载着多层次的环境公益因素,故转让行为需满足四项基础性原则的限制;就逻辑形式而言,排污权转让的法律媒介应为私法域的合同制度,但须附加一定程度的公法限制。     

城市化与上海青年就业

上海青年就业研究离不开城市视角,因为＂城市＂不仅是上海青年就业发生的地点或背景,它也是考察上海青年就业时必须纳入的因素和变量。日益严重的＂民工荒＂现象让我们深刻认识到,在研究青年普遍的就业行为时,必须将他们的这种社会流动置于＂城市＂中去理解和把握。