A tentative discussion on the content and methods of sociological study of population problems]

A general discussion on sociological aspects of the study of population in China is presented. Consideration is given to the topics covered, including nuptiality, the one-child policy, fertility, population quality, and birth and death rates. The author also discusses the methodology used, including field and sample surveys and factor analysis.     

An impact evaluation of two versions of a brief intervention targeting alcohol use and physical activity among adolescents

The purpose of the study was to evaluate the immediate impact of two new versions of the Project SPORT program, a brief one-on-one tailored consult addressing alcohol use and physical activity for adolescents. One new version was a brief interactive CD-ROM (Study one) and a second was a brief small group consultation (Study two). In study one, high school students were exposed to either an interactive CD-ROM consultation or a non-interactive computer program. In study two, students either participated in a small group consultation or health booklet control. These studies suggest both interventions were highly acceptable to participants, however, the new CD-ROM version of Project SPORT had a greater positive effective on females than males. Suggestions to make the CD-ROM more acceptable and effective for males are presented. The small group version of Project SPORT was largely acceptable and potentially efficacious for both male and female adolescents, with the largest impact seen on participants' images, beliefs, and commitment related to physical activity.     

Alcohol-related fan behavior on college football game day

High-risk drinking on game day represents a unique public health challenge. OBJECTIVE: The authors examined the drinking behavior of college football fans and assessed the support for related interventions. PARTICIPANTS: The authors randomly selected 762 football fans, including college students, alumni, and other college football fans, to complete an anonymous online game-day survey. METHODS: The authors collected data on participants' drinking behaviors and support for specific game-day interventions. RESULTS: Analysis revealed that, overall, fans drank significantly more on game day than they did the last time they partied or socialized. Nondrinkers were the most supportive of game-day interventions, followed by moderate drinkers, whereas heavy drinkers offered the least support. CONCLUSIONS: With the exception of limiting tailgating hours on game day, fans support game-day interventions, including alcohol-free alternatives, designating tailgating areas where open containers are permitted, and increasing law enforcement efforts.     

大数据时代的整合调查设计——以校园满意度调查为例

为应对大数据时代下,面向学生群体的大规模抽样调查所面临的研究成本高与研究效率低的挑战,本文利用整合调查设计方法探索解决方案,并以中国人民大学校园满意度调查为例展开应用讨论。该方法通过模拟退火算法对调查成本函数进行优化,得出问卷拆分的最优组合及每份子问卷对应的样本量。实证结果表明:整合调查设计有效降低了每份子问卷包含的题目数量,减轻了受访者的受访负担;同时,由于对不同题目上样本量的分布进行了优化,在保障估计精度的条件下降低了调查的总成本。整合调查设计方法为抽样调查提供了一种全新的改进思路以适应时代发展的需要,同时该方法的应用并不局限于某个领域的调查,对于其他问卷较长、样本量较高的调查同样适用。     

国学之内涵、价值及当代意义

国学包括了中华全部学术文化.此文立足于大国学的视点,对国学名称的由来,国学所包涵的学术文化范畴和研究方法,20世纪国学大师所表现出来的爱国主义精神作了总结性的梳理和回眸,并从时代、国家、民族的高度论述了当下"国学热"对于民族本土文化复兴的意义.     

Maternal involvement and adolescents' psychological and academic adjustment after COVID-19 return-to-school: A one-year longitudinal study

The current study examined the idea that maternal involvement during the COVID-19 school closure period could contribute to the development of adolescents' daily routines, which could ultimately associate with their psychological and academic adjustment after return-to-school. Data were collected from 520 Chinese adolescents (M_age = 12.75 years, SD_age = 1.48 years) and their mothers during the COVID-19 school closure and one year after return-to-school. Results indicated that maternal involvement in both education and leisure activities predicted more consistent adolescents' daily routines during the school closure period and then contributed to their more consistent daily routines after return-to-school, resulting in less psychological maladjustment and better academic outcomes. Findings highlight the importance of maternal involvement and daily routines in the context of COVID-19.     

欢盟基金工具对长三角泛化后经济合作的启示

近年来,在长三角地区城市群泛化的趋势下,区域内城市一体化发展遇到了前所未有的挑战。城市间群散性倾向进一步扩大;多层治理模式的发展滞后于区域一体化发展;有利益冲突的城市合作项目难以得到实质性推进。借鉴基金工具在欧盟区域政策实施中所发挥的作用,其给予我们的启示是：以基金工具为调节手段,使区域政策目标更趋于聚集;以基金工具为连接纽带,使区域合作主体间形成更紧密的制度安排;以基金工具为执行保障使合作项目的设立、实施更有效率。     

不同压力与复杂压力下的银行体系流动性风险测试

文章基于宏观经济波动、同业风险传染和不同风险演化的视角研究了不同压力与复杂压力冲击下银行体系的流动性风险.研究发现复杂压力冲击危害在一定范围内不随压力程度的增加而加大,滞胀背景下复杂压力冲击对银行体系流动性的危害将大于其他压力情景,复杂压力因素冲击并不比单一压力因素具有更强的危害,但银行体系流动性将随着压力的传递与深化出现复杂变化.     

三元经济结构对城乡居民收入差距扩大的张力分析

在经济发展的理论框架中,二元经济结构理论一直被作为分析我国城乡居民收入差距现象的理论工具.但在我国工业化水平不断提高的同时,为什么城乡居民的收入差距却在快速拉大?因为我国的工业化所面临的经济环境已非刘易斯在20世纪50年代创立二元经济结构论时的经济环境.随着我国新经济部门的形成和发展,我国经济结构已从二元经济结构(农业经济、工业经济)转向三元经济结构(农业经济、工业经济、知识经济),三元经济结构的形成扩张了城乡居民的收入差距.     

Lifetime distribution of two discrete censored δ shock models

In this paper, two classes of censored δ shock models are studied. The first model is the lattice renewal binomial censored δ shock model, in which shocks occur independently at discrete time epochs according to Bernoulli trials. The second model is the Markovian-censored δ shock model, in which shocks arrive in accordance with a discrete time Markov chain. In both censored δ shock models, lifetime distributions of the considered systems are derived. By using the probability generating function method, the expectation and variance of the lifetime in the binomial-censored δ shock model are obtained, too. Some numerical examples are also provided to illustrate the proposed model.