农民工心理健康现状及其影响因素研究——来自8城市的调查分析

利用2014年国家卫计委数据,从消极、积极心理状态两个维度,分析农民工心理健康的现状,综合考察人口因素、流动因素、经济因素、社会因素和文化因素对其的影响作用。研究发现,农民工心理健康各维度的发展并不平衡:其消极心理状态不差,但积极心理状态欠佳。改善经济状况和加强文化适应对农民工心理健康均无消极影响,但社会因素的影响较为复杂。五类因素对心理健康的解释贡献存在差异:人口因素对消极心理状态的解释比例最高;流动因素对心理健康各维度的解释程度均很低;经济因素对积极心理状态的解释贡献十分突出;社会、文化因素对消极心理状态的解释比例不容忽视。     

Control‐based imputation for sensitivity analyses in informative censoring for recurrent event data

In clinical trials, missing data commonly arise through nonadherence to the randomized treatment or to study procedure. For trials in which recurrent event endpoints are of interests, conventional analyses using the proportional intensity model or the count model assume that the data are missing at random, which cannot be tested using the observed data alone. Thus, sensitivity analyses are recommended. We implement the control‐based multiple imputation as sensitivity analyses for the recurrent event data. We model the recurrent event using a piecewise exponential proportional intensity model with frailty and sample the parameters from the posterior distribution. We impute the number of events after dropped out and correct the variance estimation using a bootstrap procedure. We apply the method to an application of sitagliptin study.     

A socio-ecological perspective of urban green networks: the Stockholm case

Landscape fragmentation threatens habitats, biodiversity and other ecosystem services. In tackling this threat, the dynamic processes of social-ecological systems should be recognised and understood. Although network analysis based on graph theory has been recognised as an efficient way of spatially understanding landscape or habitat connectivity, only few studies have offered specific approaches or suggestions for integrating detailed social-ecological values into geographical distributions. As a contribution to bridging this gap, this paper introduces a social-ecological network model for the issue of landscape or habitat fragmentation applied to the case of Stockholm, Sweden. Graph theory was used in combination with sociotope and biotope maps for simple visualisation of network situations in two-dimensional maps. The European crested tit (Lophophanes cristatus), European common toad (Bufo bufo) and human beings were selected as indicator species, based on a landscape ecology analysis in Stockholm Municipality in 2009. Slope, land use and human disturbance maps were assessed in order to decide cost values of travelling from node to node. Lease-cost-path accumulation was used to create ideal reference maps of green networks. Three separate maps were then developed for suggesting efficient routes for three indicators in city scale that mainly connect from the Royal National City Park to the other parts of the city. The model in Hjorthagen neighbourhood to highlight two practical paths that link this fragmented community to its neighbouring park areas. Findings make it possible to address two scales of network improvement strategies, namely first for the city-scale green network that connects geographical habitats (nodes) and the regional green wedges of the city, and the second that of neighbourhood links between habitats in detailed layers of green networks. Strategic improvement potentials are presented based on ideal reference maps of green networks correspondingly.     

Sexual objectification decreases women’s experiential consumption (but not material consumption)

The current investigation examined our prediction that sexual objectification decreases women’s experiential consumption but not material consumption. Three experiments provided converging support for this prediction. In particular, female participants reported lower tendency to engage in experiential consumption after recalling a past experience of objectification (Studies 1 and 3) and chose a material product over an experiential one after receiving objectifying comments (Study 2). Furthermore, Study 3 found that sexual objectification reduced purchase inclination of experiential products, and this effect did not emerge for material products. These findings contribute to the literature on sexual objectification by showing the impact of sexual objectification on women’s economic decisions and behaviors.     

Vocational Experiences and Quality of Life of Migrants: Overview and Future Research

Quality of life is a complicated concept that has attracted broad attention from multiple disciplines. This article introduces a set of studies that employ diverse approaches to explore how work, vocational, and career experiences shape quality of life among migrants, and proposes a future agenda to extend this stream of research. Specifically, operationalizing quality of life in different ways, research showcased in this special issue has demonstrated how international and intranational migrants achieve, maintain, and enhance their well-being in different life domains. Reflecting on the literature and the showcased studies, this article proposes that future research should advance the current inquiry by better categorizing vocational experiences, uniquely operationalizing of quality of life in migration contexts, taking a more culturally sensitive perspective, and broadening methodological approaches.     

社会角色理论视域下高校问题学生行为失范

高校"问题学生"行为失范已得到社会的普遍关注,基于前人研究的基础,立足客观实际,开辟新视角,将社会角色理论引入对这一问题的研究,不仅对"问题学生"和"行为失范"进行了重新界定,从角色转换、角色冲突、角色错位、角色失败四个方面分析了高校"问题学生"行为失范产生的缘由,并提出了相应的对策。     

产业集群持续竞争优势及其机理

基于资源和动态能力等企业战略管理视角,对产业集群持续竞争优势的构建进行分析,并建立相关概念模型,提出了本土组织机构、集体声誉、共享知识、竞合互动氛围等共享性资源本身及通过吸收能力和创新能力中介作用对集群持续竞争优势的影响机理,集体学习机制为资源的合理利用提供路径和渠道。     

高兹资本主义核电技术批判理论及其当代价值

高兹是法国当代左翼生态政治思想家,他以法国发展核电技术为例,从技术、经济、生态和安全方面对资本主义使用的核电技术进行了深刻的分析和批判。他指出核电技术是"资本的圈套",符合资本主义积累逻辑,是资本主义专制的政治选择,社会生态重建的基本前提是工具转换。高兹的核电批判理论为我们审视目前的能源发展战略提供了一种新的理论视野,他对节约能源以及采用新技术发展新型能源的思考,对建设生态文明具有重要的价值。     

区域主导产业选择研究综述

区域主导产业选择是实现资源有效配置的有效途径,是促进区域产业结构优化的关键,是加快区域工业化进程的战略举措。主导产业选择理论始于日本经济学家筱原三代平的研究,目前区域主导产业选择研究存在缺乏动态性研究、选择基准与指标体系不相配等问题,进行基础理论再研究、开展选择结果资源配置效率评价和培育支持体系研究将是区域主导产业选择理论研究的方向和重点。     

中、日、韩中小企业发展促进体系比较

中小企业是国民经济中最具活力的组成部分,日本和韩国作为亚洲中小企业发展较早的国家,在其政策措施、技术创新、融资担保、培训咨询、社会化服务体系方面都有独到之处;而我国中小企业的发展需要有高强度的政府政策来扶持,完善的政策法规和多样的融资政策为支撑,以产业集群为载体,搭建技术创新服务平台,扶持和巩固现有的中小企业培训机构,建立全方位的社会化服务体系。