竖屏短视频中的身体呈现与身体消费

随着应用平台的不断完善和用户习惯的逐渐养成,竖屏短视频俨然成为身体视觉形象荷载和身体审美的绝佳场域,用户也在表演与欣赏的过程中实现自身表达,获得价值认同。不仅如此,竖屏短视频还利用单手竖持、影像竖制及大数据反馈实现身体在场和人机交互的升级,进一步收割用户注意力并成为新一轮互联网商业模式演进新入口。值得注意的是,当前在改变用户消费观念和方式的同时,竖屏短视频也被消费主义裹挟,一度陷入媒介伦理失范、传播生态失衡的发展阵痛之中。     

中国农业生产性服务供给效率测算与影响因素研究——基于DEA-Malmquist指数和Rough Set方法

运用DEA-Malmquist指数法测算出我国农业生产性服务的供给效率,采用Rough Set方法测度了十项农业生产性服务对全要素生产率的影响.研究发现:从全国层面上看,2012-2016年,农业生产性服务供给效率呈现先下降后上升的U型变动特征.从区域层面看,重庆、北京、湖北、河南、黑龙江、河北、浙江、辽宁、山东等地区农业生产性服务供给效率较高,而贵州、甘肃、内蒙古、安徽、吉林较低.Rough Set方法测度显示,农产品销售服务、农资供应及配送服务、土地流转服务、农业金融服务、农业信息化服务和农业技术推广服务六项服务是农业生产性服务供给效率呈现地区差异的主要原因.     

医学人类学视角下促进大学生身心健康的作用机制与实践路径探究

医学人类学注重文化与健康关系的研究。本文认为,文化对大学生的身心健康具有极其重要的功能和作用,以文促健是医学人类学视角下促进大学生身心健康的基本观点与主张。文化对大学生身心健康促进功能的发挥在于其作用机制,在田野研究中发现和凝练的文化对健康的输入-输出模型以及相应的实践路径总结,是人类学视角下对大学生身心健康促进的新思考、新构建。本研究从医学人类学视角出发对大学生身心健康的促进机制与实践路径加以研究,能够从理论和实践层面加强对这一社会现实问题的认识与应对,同时为当前新文科建设倡导的学科交叉融合提供较好平台,还可以有效助推健康中国战略在高校和大学生群体中的实施。     

论粤港澳大湾区产业创新生态体系重构

作为国家战略的粤港澳大湾区建设将成为打造高质量发展的典范,其意义重大.遵循核心概念内涵界定—现实困境分析—路径分析—选择与策略的总体思路,基于大湾区产业高质量发展的现实困境分析,构建颠覆性创新价值网—数字经济平台—产业高质量发展的分析范式,探讨粤港澳大湾区如何重构产业创新生态,促进颠覆性创新价值网的建立.研究表明:颠覆性创新价值网构建是产业高质量发展的动力源,数字经济平台战略是路径选择;以机制体制改革和政策、标准供给为动力,构建大湾区颠覆性创新生态价值体系,并以数字经济发展促大湾区价值网建设,可实现大湾区产业高质量协同发展的目标.     

中国城镇新增住房需求规模的测算与分析

本文围绕城镇家庭户自然增长、城镇家庭户机械增长和城镇存量住房拆除三项需求来源,设计了基于人口普查等公开统计数据定量测算城镇新增住房需求规模的系统性方法,对2001—2010年和2011—2015年间全国和各省份城镇新增住房需求规模进行测算与分析。在此期间新增住房供需关系经历了从基本均衡向供过于求的变化,同时存量住房拆除引致的被动需求取代城镇家庭户自然增长和机械增长引致的主动需求,成为新增住房需求的最主要来源。东、中、西部省份在新增需求规模、新增供需比、需求结构等方面表现出明显差异。本文还进一步对2021—2030年的发展趋 势进行了定量预测。由于三项需求来源均趋于下降,2021—2025年和2026—2030年间全国年均城镇新增住房需求规模预计将较2011—2015年间分别下降33%和53%。本文设计的城镇新增住房需求规模测算方法和预测思路能够为各级政府“十四五”住房发展规划编制、房地产企业战略制定等提供参考。     

创新福利模式 优化社会管理

创造适合国情的福利模式,是社会管理成功的基础和奥妙所在。一个好的福利模式要能保持四个基本均衡:经济发展与福利支出的均衡,福利支出中的基础部分与非基础部分的均衡,福利机制中的刚性与柔性的均衡,福利责任结构中的政府与市场、家庭、个人之间的均衡。中国一些富裕农村所搞的集体福利为实现这些均衡提供了实践经验,而这些经验与底线公平理论非常契合。底线公平福利模式具有四个特点和优势:教育为基,劳动为本,服务为重,健康为要。它充分发挥中国优秀文化和社会结构优势,把发展性要素内置于福利模式之中,可以实现社会福利的内外平衡,为社会安全奠定基础。     

张靓颖：为音乐而生

曾入围格莱美奖、去美国接受奥普拉专访、受邀与日本音乐大师喜多郎合作、担任第38届加拿大蒙特利尔国际电影节评委……张靓颖向世界宣告了中国青年的软实力。     

Restructuring of the Financial Industry: The Disappearance of Locally Owned Traditional Financial Services in Rural America

Restructuring in the financial services industry has altered the relationship between small business owners and capital. In the past small businesses have relied on relational, or soft data, lending from locally owned banks for capital. The proliferation of absentee‐owned local branch networks brought standardized practices, thus eliminating the autonomy of local loan officers to utilize soft data in loan decisions. In this article we examine the changes in the percentage of traditional financial services that are locally owned in three county types: metropolitan, micropolitan, and noncore. We utilize the Longitudinal Business Database at the U.S. Census Bureau Center for Economic Studies. We examine changes in local ownership of traditional financial services between 1976 and 2007. We find that the rate of decline of local ownership has been greatest in the noncore (most rural) counties. We also explore to what extent these patterns are related to the emergence of alternative financial services during the same period. We find that such alternative services are growing in all three county types, but at rates not significantly different than the population growth for these county types. We supplement our analysis with data from qualitative interviews with small business owners throughout rural Texas. We conclude with a discussion of implications and plans for future research.     

Older Drivers Retiring From the Road: An Application of the Selection,Optimization, and Compensation Model

Purpose: This study uses the selection, optimization, and compensation (SOC) model to compare older adults who have given up driving, those who still drive, and those who drive less to identify differences in the three groups. Design and Methods: This cross-sectional study of 281 older adults is part of the Naturally Occurring Retirement Community Demonstration Project. Study participants completed interviews that included questions on demographics, health and functioning, mental health, social support, and current levels of engagement in activities including current driving status. Results: Data suggest that driving retirement is a process and that a substantial number of people are in the transitional stage, where they are less functional than those who still drive and more similar to those who have retired from the road. Implications: Given the similarity of those who drive less to those who have given up driving, front-line professionals and policy makers must work together to ease the transition to driving retirement for those without adequate ability to effectively compensate for their inability to continue to drive safely.     

Optimal Designs for Random Coefficient Regression Models with Heteroscedastic Errors

The purpose of this article is to present the optimal designs based on D-, G-, A-, I-, and D _β-optimality criteria for random coefficient regression (RCR) models with heteroscedastic errors. A sufficient condition for the heteroscedastic structure is given to make sure that the search of optimal designs can be confined at extreme settings of the design region when the criteria satisfy the assumption of the real valued monotone design criteria. Analytical solutions of D-, G-, A-, I-, and D _β-optimal designs for the RCR models are derived. Two examples are presented for random slope models with specific heteroscedastic errors.