《登记公约》实施中的若干法律问题研究

1976年《登记公约》确定了发射国对其发射的空闯物体的登记义务,从而建立了空间物体的强制登记制度.随着空间科学的进步和空间活动商业化的发展,《登记公约》在实施过程中逐渐暴露出缔约国数量偏少、未登记空间物体数量较多、登记信息不统一等缺陷,严重影响了其实施的效果.因此,应当在适当的时机对公约加以修订,完善公约的内容,以使其适应空间活动的现状.     

The Effect of Temperature and Exposure Time on Stability of Cholesterol and Squalene in Latent Fingermarks Deposited on PVDF Membrane

Cholesterol and squalene are fatty materials of latent fingermarks that can be utilized for dating methodologies and visualization techniques. Previous studies have suggested these compounds undergo degradation in fingermarks as a function of time (days) and light at ambient temperature. However, studies assessing how their composition changes at low and high temperatures over short periods of time (hours) have not been published previously. Here, we performed quantitative analysis of cholesterol and squalene in natural fingermark residue using PVDF membrane, after exposure to a range of temperatures (−20 to 100°C) for 4 and 8 h. We found that levels of both fatty materials remained constant at −20 to 60°C, but both showed significant reduction at 100°C, over short exposure times. These results indicate that cholesterol and squalene are detectable at −20 to 60°C, whereas at 100°C or higher, both are lost due to rapid thermal degradation.     

Combined Collection and Analysis of Inorganic and Organic Gunshot Residues

Gunshot residue (GSR) analysis and their interpretation provide crucial information on a criminal investigation involving the use of firearms. To date, several approaches have been proposed for the implementation of a combined sampling and analysis of inorganic (IGSR) and organic GSR (OGSR). However, it is not clear at this stage if concurrent analyses of both types of residue might be detrimental to the analysis of IGSR currently applied in forensic laboratories. Thus, this work aims to compare and evaluate three different protocols for the combined collection and analysis of IGSR and OGSR. These methods, respectively, involve the use of a modified stub (with two halves, one for the detection of IGSR and the other for the analysis of OGSR); the sequential recovery of GSR with two stubs mounted with different adhesives (double-sided carbon tape and Tesa® TACK) and the sequential analysis of IGSR and OGSR from a single carbon stub following carbon deposition. The detection of IGSR was carried out using SEM-EDX, while OGSR analysis was performed using ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS). Obtained results for experiments performed using Geco Sinoxid^® ammunition indicated that sequential analysis was the most suitable protocol for the combined collection and analysis of both IGSR and OGSR. A higher number of inorganic (characteristic and consistent) particles and higher concentrations of ethylcentralite, N-nitrosodiphenylamine, diphenylamine, and nitroglycerin were recovered with this method.     

乡村基层执法的空间制约与机制再造

中国的基层执法深受政治体制和社会生态的影响和塑造,“治理空间”可以同时容纳这两种因素,是理解中国基层执法的新视角。乡村治理空间为基层执法提供具体场景,其“拥挤社会”特性和“权力分散”特性,严重制约着基层执法能力。空间区域化机制通过建立综合治理(执法)体系,实现了执法机构的统合和区域化;通过将村级组织、村干部、网格员等纳入执法体系,实现了执法空间的分界和局部化;通过对时间和资源进行情境化配置,实现了时空分区。区域化机制重构着乡村治理空间,回应了基层执法权薄弱和执法能力不足的问题,通过再造基层执法,提高了基层执法效度。     

Voter perceptions of parties’ left–right positions: The role of party strategies

Left–right semantics help voters simplify the complex political reality as they reduce party views on a variety of issues to a single dimension. Less studied, however, is the question of how voters arrive at parties’ left–right positions and how parties can influence voter perceptions. In this article, I demonstrate that the party can shape the voter’s understanding of the content of its left–right ideology by using three strategies: avoidance, ambivalence, or ambiguity. Specifically, the party may avoid or de-emphasize, embrace a conflicting position, or becloud its position on the controversial issue; by so doing, it induces voters to place less weight on this issue when perceiving the party’s left–right position. The empirical analysis connects voter and party data from 21 European democracies in the period 1996–2014 and finds empirical support for the effectiveness of these strategies. In particular, the study finds robust empirical evidence that strategic avoidance, ambivalence, and ambiguity strongly moderate the association between the party’s perceived ideological brand and its underlying issue content.     

空间观念的理论生成与话语转义——以康德的“先验空间”到“具身化”为例

康德针对绝对空间展开的继承性批判成为重构空间思想的必由路径,他用“绝对纯粹”来替代“神秘经验”,这是一个非神学的空间阐释框架,被誉为“哥白尼式革命”。在划清和传统空间观念的界限之后,康德以“经验”和“先验”为视角来廓清自己的理论构想并论证得出空间的重要属性：经验实在性和先验观念性。从这一结论亦不难看出康德对大陆理性主义和英国经验主义的贯通融合,即主体凭借空间化的表象,将内感官之“我”视为审美对象,这实际是上承“先验感性”中的论述。除此之外,康德空间观已预设了现象学的基本判断,这实际上开启了空间研究从经验性走向境域化、从形而上走向“具身化”的可能性。     

Feeding Mothers’ Love: Stories of Breastfeeding and Mothering in Urban China

ABSTRACT

By analysing narratives of infant feeding, this article explores how emotions are involved in the making of maternal subjectivity. The article is based on interviews with 21 Chinese middle-class mothers of small infants living in Beijing and their stories of how breastfeeding connects to intimacy and love. By merging post-structural approaches of subjectivity with affect theory, the article shows how the emotional dimension of breastfeeding promotes an ideal of mothers as primary caregivers. It finds that this ideal is challenged by practices of multiple caregiving in the mothers’ everyday lives. By exploring the performativity of emotions, the article adds another sociological perspective beyond those concerned with medical discourses of feeding infants. Also, as emotions have been neglected in much social research on Chinese mothering, it contributes to new sociological knowledge about mothering in China.     

空间碎片现状的国际法思考

空间碎片是指位于地球轨道上的非功能性人造物体,近年来其对人类的外空活动构成重大威胁。目前,关于空间碎片的立法尚不完善。文章对空间碎片问题的现状、涉及空间碎片致害的国际责任问题和空间碎片造成的空间环境污染问题的现行法律规定进行了探析,认为有必要明确空间碎片的概念界定,并从现行国际条约的局限性入手,对空间碎片作出系统的法律规制。     

中国农民组织化的发展空间研究——以北部湾经济区农民组织化为例

伴随着中国社会的深度转型进程,当前中国农村组织结构与农民组织方式发生了深刻变革。该文基于社会学的理论维度,以北部湾经济区农民组织化为例,着力从组织功能视角深入探讨社会转型期中国农民组织化的发展空间问题,以期更好地推进中国现代化建设进程。     

论侦查假说的三个支点

侦查假说是侦查人员在侦查破案过程中必不可少的思维方式。侦查假说具有多元性、层次性和开放性。侦查实践的终极目标是实现案件的侦破,侦查假说的正确与否决定着侦查工作的成败。侦查实践往往围绕侦查假说展开推理和论证。构建侦查假说,需要在时间层次、空间层次和人物层次之间进行综合考量,形成较完整的有关犯罪假说体系的三个支点。