依靠科技创新支撑南宁创新型城市建设

建设创新型城市,是经济发展模式的根本转变和社会领域的深刻变革,是支撑引领一个城市发展的重要战略选择。本文分析南宁建设创新型城市的战略意义、战略方向和比较优势,提出以科技创新为核心支撑南宁创新型城市建设的对策建议。     

新型城镇化进程中“城市病”治理的策略研究

城市化的快速发展使得人口膨胀、交通拥堵、资源短缺、环境污染、社会矛盾等各类"城市病"日益严重,妥善解决"城市病"问题,是保证我国城市化健康发展、顺利实现全面建成小康社会战略目标的关键性问题。"城市病"的产生,究其原因主要是跨越式发展产生"时间压缩"效应,城市发展理念与方式存在偏差,城市规划建设缺乏科学性,政府职能的缺位导致城市管理滞后,城市空间结构失衡等。发达国家在治理城市病过程中的城市发展理念、顶层的城市规划设计、科学的城市交通路网等先进经验值得我们借鉴。基于新型城镇化的视角,治理我国城市病要坚持以人为本的新型城镇化道路,确立城乡一体化发展理念,提高城市规划建设水平,创新城市管理方式,实施都市区和城市群发展战略。     

振兴老字号的若干思考——以绍兴市为例

老字号,一般指传承独特的产品、技艺或服务,具有中华民族特色和鲜明的地域文化特征,拥有较深历史价值和较高文化价值,得到社会广泛认同和赞誉的字号。老字号是勤劳智慧的中华民族在长期创业过程中积累起来的宝贵财富,是中国传统文化的重要组成部分,具有重要经济价值、社会价值、文化价值和品牌价值。在经济全球化和市场激烈竞争的大环境下,在城市化加速进程的浪潮中,老字号面临生存危机和发展困境。加强老字号的保护与发展意义重大,需要从规划、政策、组织、营销等多方面推进老字号企业的振兴与发展。     

我国统一基本养老保险制度建立时点研究

众所周知,与城乡二元的社会经济结构相对应,几十年来,我国的城市和乡村实行的是两套相对独立、待遇迥异的"二元"养老保障体系[1].随着社会主义市场经济的发展、城市化率的提高、城乡融合的推进,二元的城乡养老保障体系与社会发展要求不相适应的矛盾日益显现,因此,如何统筹城乡养老保障,最终建立城乡统一的社会养老保障体系的问题,引起了政府、学者和社会各界的高度关注.     

DNA COLLECTION IN A RANDOMIZED SOCIAL SCIENCE STUDY OF COLLEGE PEER EFFECTS

We describe the DNA collection processes of an initial pilot and full study, which is designed to investigate joint peer and genetic effects on health behaviors and attitudes in a college campus setting. In the main study, 2664 (79.5%) students completed a Web survey and 2080 (78.7% of the survey completers after adjusting for the ineligible) provided a saliva DNA sample. The response rate for completing both the survey and the DNA portion of the study is 62.5%. Our DNA yields are of high quality. Overall, our experiences and results demonstrate that genetic data can be successfully collected as a part of traditional social science survey research projects. To aid others in doing so, we provide extensive details of our data collection experiences and offer recommendations to future researchers seeking to do or evaluate similar work.     

基于格兰杰因果关系检验的ISM改进与应用

文章提出了一种基于格兰杰因果关系检验的解释结构模型(ISM)改进方法,该方法能依据客观统计数据识别影响因素的两两关系,进而改善了原有模型中采用专家评价法确定邻接矩阵的主观性困境.通过对物流与经济协同发展水平的影响因素分析,实证检验了解释结构模型改进方法的可行性.     

Joint modeling of longitudinal and survival data with the Cox model and two-phase sampling

A common objective of cohort studies and clinical trials is to assess time-varying longitudinal continuous biomarkers as correlates of the instantaneous hazard of a study endpoint. We consider the setting where the biomarkers are measured in a designed sub-sample (i.e., case-cohort or two-phase sampling design), as is normative for prevention trials. We address this problem via joint models, with underlying biomarker trajectories characterized by a random effects model and their relationship with instantaneous risk characterized by a Cox model. For estimation and inference we extend the conditional score method of Tsiatis and Davidian (Biometrika 88(2):447–458, 2001) to accommodate the two-phase biomarker sampling design using augmented inverse probability weighting with nonparametric kernel regression. We present theoretical properties of the proposed estimators and finite-sample properties derived through simulations, and illustrate the methods with application to the AIDS Clinical Trials Group 175 antiretroviral therapy trial. We discuss how the methods are useful for evaluating a Prentice surrogate endpoint, mediation, and for generating hypotheses about biological mechanisms of treatment efficacy.     

The Association of Alternative Financial Services Usage and Financial Access: Evidence from the National Financial Capability Study

This study examined the association of financial access and alternative financial services (AFS) using a nationally representative sample from the 2012 National Financial Capability Study (N = 25,509). Structural equation modeling was used to examine the relationship between financial access and AFS usage. Ordinary least squares regression was used to estimate the relationship between banked status and the overall AFS usage as a latent variable while controlling for sociodemographic variables, financial education, financial knowledge, and home ownership. Results suggested that being unbanked was positively associated with AFS usage after controlling for other covariates. Financial education and knowledge, age, gender, marital status, education, household income, and homeownership were significantly associated with AFS usage. These findings have implications for public policy and programs that work with the unbanked.     

广州市农村留守儿童问题研究

基于问卷调查研究广州市农村留守儿童问题。调查显示,广州存在农村留守儿童及其问题,但是,广州农村留守儿童问题程度相对较轻。根本原因是广州作为改革开放的前沿阵地,城乡经济社会发展和二元结构改革取得了重大进展。对广州农村留守儿童问题不能听之任之,要加强农村留守儿童的家庭监护主体责任和学校关爱保护工作。