北京市流动人口聚集效应与移民倾向研究

20世纪90年代以来,北京市流动人口一直占北京市人口总数的1/4左右,并且呈现长期定居北京的势头.流动人口聚集区有其独特特征,流动人口工作生活自成体系.聚集区当地经济严重依赖出租经济,成为流动人口居留的拉力因素.滞后于城市化水平的聚集区现行管理模式为流动人口定居提供了条件.聚集区流动人口在定居意愿和定居行为上呈现矛盾态势,是城市化进程中体制和经济因素综合作用的结果.     

中国出口贸易结构演进:1978～2009

改革开放30多年来,中国对外贸易迅猛发展,出口贸易结构发生了很大变化,本文在总结中国出口贸易结构演变过程及发展趋势的基础上,分析了中国出口贸易结构存在的问题及产生的原因,并指出未来中国出口贸易结构调整中应支持中西部内陆省份外贸和经济发展、提高企业生产率和国家金融发展水平、引导和支持私营企业出口发展以及发展航空运输和公路运输等来优化中国出口贸易结构.     

Semiotising the student perception of learning outcomes in British higher education

This article presents a semiotic analysis of the student perception of learning outcomes in British higher education. It centres on three annotated images in Frank Furedi’s article “The Unhappiness Principles”, published in Times Higher Education in 2012. Drawing upon Peircean semiosis and iconicity, it provides a rhetoric-infused interpretation of the word–image complementarity exhibited in student participants’ written commentaries on the three images. This leads to a dialectical view of formative and summative assessment, in which process and product create each other through the same continuum of learning and teaching. In highlighting intellectualism as central to the ethnography of university life, this article argues that learner autonomy and the potential for transformation is deemed essential to the student experience in higher education.     

环境习惯法对少数民族地区环境法制建设的贡献——以青海果洛藏族自治州达日县和青海湟中县为例

将民族环境习惯法与国家法进行衔接和融合,既是少数民族地方环境法制建设的需要,也是民族环境习惯法现代化的合理进路。具体而言,三江源地区环境习惯法可以成为国家环境立法的来源,并有助于环境法律的实施,同时能够弥补环境立法的空缺。     

青少年视野中的儿童参与状况调查

为了探索青少年对上海市儿童参与状况的理解,本研究对1234名上海市中学生进行了问卷调查。调查结果显示显示了儿童参与情况的一系列特点,诸如,大部分青少年不熟悉儿童参与权,青少年参与家庭重大决策的机会很少,参与期望也不高,青少年参与课堂教学的程度较低,缺乏参与学校管理的兴趣,等等。     

文莱:2016年回顾与2017年展望

2016年,文莱继续保持多年来的格局,政治社会稳定,人民生活富裕;由于受到国际油价低位徘徊的影响,导致经济没有完成年度计划,呈现了负增长;外交上,根据国家既定的对外政策尽力参与地区及世界上的外交活动.展望2017年,文莱仍然保持这种发展格局.     

Reciprocal Relationships between Teacher Ratings of Internalizing and Externalizing Behaviors in Adolescents with Different Levels of Cognitive Abilities

Are internalizing and externalizing behavior problems interrelated via mutually reinforcing relationships (with each behavior leading to increases over time in levels of the other behavior) or mutually suppressing relationships (with each behavior leading to decreases over time in levels of the other behavior)? Past research on the directionality of these relationships has led to ambiguous results, particularly in adolescence. Furthermore, the extent to which prior results will generalize to adolescents with low levels of cognitive abilities remains unknown. This second limit is particularly important, given that these adolescents are known to present higher levels of externalizing and internalizing behaviors than their peers with average-to-high levels of cognitive abilities, and that the mechanisms involved in the reciprocal relationships between these two types of behaviors may differ across both populations. This study examines the directionality of the longitudinal relationships between externalizing and internalizing behavior problems as rated by teachers across three measurement waves (corresponding to Grades 8–10) in matched samples of 138 adolescents (34.78?% girls) with low levels of cognitive abilities and 556 adolescents (44.88?% girls) with average-to-high levels of cognitive abilities. The results showed that the measurement structure was fully equivalent across time periods and groups of adolescents, revealing high levels of developmental stability in both types of problems, and moderately high levels of cross-sectional associations. Levels of both internalizing and externalizing behaviors were higher among adolescents with low levels of cognitive abilities relative to those with average-to-high levels of cognitive abilities. Finally, the predictive analyses revealed negative reciprocal longitudinal relationships (i.e., mutually suppressing relationships) between externalizing and internalizing problems, a result that was replicated within samples of adolescents with low, and average-to-high levels of cognitive ability.     

Population Pressures and the North–South Divide between the first century and 2100

This article examines the relationship between the populations of the more and less developed societies between the first century and 2100. Such an analysis reveals a changing dependency between the level of development (and GDP) achieved and population numbers between the first century and 1998. In relation to the past the article suggests a dynamic model for dividing the world into more and less developed areas. In relation to the present and the future it bases the population analysis on the developmental division of the world as published by one of the co-authors of this article. The article largely uses population estimates (with those referring to the past taken from Angus Maddison and those referring to the future from the most recent projections by the United Nations). Taking the 2013 UN projection as a model, it discusses three variants for demographic development in the North and South up to 2100. It argues that the more restrictive population growth variants of the UN projection predict a greater relative ‘Third Worldisation’ of the world than does the most dynamic projection.     

Development of a Novel Finger-Trigger Interface for Trigger Pull Measurement

Trigger pull is the force that needs to be exerted on the trigger to discharge a firearm. The measurement of trigger pull can assist in the evaluation of the safety, function, and manufacturing characteristics associated with a firearm during the forensic firearm examination process. Nonetheless, the accuracy and uncertainty of trigger pull measurements may be affected by the measuring device, test procedure, and environmental conditions. In this work, an innovative finger-trigger interface device was developed to facilitate accurate trigger pull measurements. The idea was to reduce the variation related to the position of the measurement device on the trigger in existing measuring methods and devices. Three force sensors based on different technologies were initially evaluated. While two of the three sensors failed to produce data, the miniature capacitive plate sensor exhibited high precision and a linear response over the range of typical trigger pulls. To examine the effects of the finger-trigger interface on trigger pull measurement, different sensor housing prototypes were designed in silico and 3D printed for the construction of three finger-trigger interface devices. The performance of each finger-trigger interface device was evaluated by measuring the trigger pulls of several selected firearms and comparing the data to a previously published study. Our preliminary results demonstrated the novel finger-trigger interface device offered a new way to measure trigger pull in situ with acceptable accuracy and precision.     

Corporate policy entrepreneurship and cross-boundary strategies: How a private corporation champions mobile healthcare payment innovation in China?

The private nature of corporate actors does not necessarily preclude them from contributing to public interest. When business strategies and genuine public motivation are favorably aligned, corporate actors from the private sector can also drive public sector innovations. For a private corporation, policy entrepreneurship inherently entails crossing not only the public–private boundary but also various policy domains. This study formulates five propositions to characterize the cross-boundary strategies of corporate policy entrepreneurship, a distinct form of policy entrepreneurship in a developing authoritarian state. The case study of mobile healthcare payment innovation in China finds that the corporate entrepreneur used a series of cross-boundary strategies adeptly that eventually made the innovation not only adopted in one locality but also rapidly diffused nationwide. These strategies were not used in isolation or in a pure stepwise fashion but appeared to be recursive and interactive, suggesting the dynamic nature of corporate policy entrepreneurship in a multilevel governance system. More studies could be done to further examine strategies and processes of other forms of policy entrepreneurship in various national and sectoral settings.