全面建成小康社会的“制度密码”——庆祝中国共产党成立100周年

2020年是实现全面精准脱贫和全面建成小康社会的收官之年,是中国共产党实现第一个百年奋斗目标的关键之年,也是执政党兑现向人民做出的庄严承诺之年。脱贫攻坚是执政党治国理政的头等大事,民生发展彰显制度体系和治理体系的强劲优势,全面建成小康社会是实现中华民族伟大复兴的坚实基础。制度体系是全面建成小康社会的根本支撑,需要构建精...     

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.     

The Effects of Blaming Others for Legislative Inaction on Individual and Collective Evaluations

Legislators commonly blame others for gridlock. We posit that legislators may engage in this type of rhetoric to minimize the individual reputational risks associated with legislative inaction or to boost the relative standing of their party. In a series of six survey experiments, we find that blaming others for inaction undermines voters’ evaluations of individual legislators who engage in this rhetorical strategy. This effect is particularly pronounced among out-partisans and independents. However, blaming rhetoric can also enhance the standing of the blamer’s party relative to the opposing party across all groups (including out-partisans), in large part by undermining the reputations of these other actors. Ultimately, we show that when an individual legislator engages in blaming rhetoric, the immediate net electoral effects are null. This suggests that coordinated efforts by a party to blame opponents may improve the party’s relative standing, while imposing few costs on those engaged in blaming.     

海洋命运共同体思想的内涵和实践路径

海洋命运共同体思想是人类命运共同体思想在海洋领域的细化,反映了国际海洋法的发展趋势和价值目标。它创造性的继承并发展了和而不同思想以及共同体思想,为全球海洋治理提供了新的价值指引。海洋命运共同体是共同体成员基于海洋共识和共同的海洋利益产生认同感和归属感,通过在海洋领域的共同合作形成的联合体,包括海洋政治、安全、经济、文化和生态命运共同体。中国在区域可以通过实施多边海洋行动,构建区域海洋命运共同体,实现区域合作关系的升级。海洋命运共同体是超越民族和国家的海洋观,中国在全球可以通过构建海上丝路命运共同体、提升国际制度性话语权和形成国际海洋法律新制度来践行海洋命运共同体思想。     

Small farms,smaller plots: land size,fragmentation, and productivity in Ethiopia

African agriculture is often dominated by smallholder farms composed of multiple plots. In policy circles it is often assumed that fragmentation coupled with small farm size is an impediment to increasing yields and thus decreasing poverty and food insecurity. There also exists an influential literature that explores the inverse relationship between farm size and yield. While there are many studies internationally, few have been conducted in Africa. Using an Ethiopian national survey, we explore the relationship between yield, farm size and fragmentation. We find an inverse relationship between farm size and yield, and a positive association between yield and land fragmentation.     

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.     

打破政策“黑箱”的制度设计——基于广州政策兑现实践的研究

如何打破政策“黑箱”是学界和社会关注的重要议题。以广州市政策兑现改革实践为例,探讨如何从制度设计层面来打开公共政策过程中的政策“黑箱”。研究发现,虽然公共政策过程是一个动态且复杂的过程,但是通过统筹政策制定和政策落地两端、主观要素客观化、模糊标准明确化、重塑政府流程等,能够形成确定的决策环境,控制非理性因素,约束自由裁量权,并压缩权力寻租空间,从而可以从源头消除政策“黑箱”的形成土壤。广州市政府政策兑现改革过程中,通过“输入—转化—输出”的制度框架设计,形成了从政策制定到政策执行再到政策结果与评估的政策闭环,并对政策兑现的相关责任单位、流程和时限都进行了严格把控,进而实现对政策“黑箱”内部决策要素的控制。从政策“黑箱”本身入手,破解政策“黑箱”难题,实现政策的阳光承诺和给付,最终形成极具特色和借鉴意义的广州模式。     

“粤港澳大湾区”三地制度建设路径探索

2019年中央颁布《粤港澳大湾区发展规划纲要》,将粤港澳大湾区计划初步建设成为世界一流湾区。改革开放以来,广东与港澳的关系一直非常紧密,尤其在经贸合作领域,香港和广东的关系犹如“前店后厂”。与长三角、京津冀地区实践不同,粤港澳大湾区是“一国两制”下的一次重大探索式发展。粤港澳大湾区有其特殊地位,粤港澳三地三种不同的关税区具有不同的制度和法律,应在维护“一国两制”的前提下探索三地的深度融合。     

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.