新媒体语境下大学生体育行为的现状、特征及其提升路径

新媒体迅速发展增加了体育信息传播的途径和范围。为探究新媒体语境下信息时代的体育传播对大学生体育行为的影响,本文对重庆市4所高校的大学生参与体育活动形式、获取传媒信息的渠道以及体育行为需求等情况进行调查,通过文献资料整理、问卷调查、数理统计等研究方法,对新媒体语境下信息传播对重庆市大学生体育理念和行为、特征等问题进行研究,为大学生形成科学合理的锻炼方式、养成良好的体育行为等提供参考,为新媒体信息在新时代高校体育工作的应用提供理论依据。     

风险投资公司激励约束机制的博弈分析

目的/意义受托管理机构的寻租行为会导致政府创业投资引导基金的投资运作偏离预定的政策性目标,完善对受托管理机构的激励监督机制, 防范道德风险的发生,对于确保引导基金投资运作的合规性具有重要意义。设计/方法引入监督成本和惩罚函数,并将其植入Holmstrom-Milgrom线性契约激励模型,构建了一个针对受托管理机构寻租行为的激励监督模型。结论/发现最优激励水平和监督力度一方面受政府与引导基金自身特点的影响,包括政府的监督成本、惩罚力度和引导基金所处市场环境的不确定性,另一方面也与受托管理机构的履约成本、寻租成本和风险偏好有关。政府应在综合考虑这些参数的影响的基础上制定激励监督策略。进一步地分析发现,单独采用激励或监督策略并不能取得最优的治理效果,只有将两种策略结合起来才能更有效地减少寻租行为,降低委托代理成本,实现政府收益的最大化。     

Preschoolers' Attachment to Mother and Risk for Adjustment Problems in Kindergarten: Can Teachers Make a Difference?

Based on attachment theory, two aims were addressed. Firstly, we tested whether close teacher–child relationships may buffer children who are less securely attached to their mothers against negative outcomes, such as aggressive behavior. Secondly, our study evaluated whether teacher sensitivity may protect less securely attached children against forming less close relationships with their teachers. In a sample of 127 children, mother–child attachment was observed in preschool. In kindergarten, teacher sensitivity was observed, and teacher–child closeness and child aggressive behavior were rated by the teacher. Results of multilevel hierarchical regression analyses first showed that with high teacher–child closeness, less securely attached children are no longer at risk for more aggressive behavior. Secondly, it was found that with high teacher sensitivity, less securely attached children are no longer at risk for developing less close relationships with their teachers.     

Predictors of Antisocial and Prosocial Behavior in an Adolescent Sports Context

This study examined antisocial and prosocial behavior of N = 439 adolescent athletes between 14 and 17 years of age (67 teams). Multi‐level analyses showed that team membership explained 20 and 13 percent of the variance in antisocial and prosocial behavior in the sports context, respectively. The team effects suggest that aggregating antisocial or prosocial adolescents within teams may partially explain differences in antisocial and prosocial behavior among athletes in the sports context. A trend was found toward a relation between higher levels of moral reasoning within teams, and less antisocial behavior in the sports context. Favorable moral atmosphere was positively associated with more prosocial behavior in the sports context. Finally, supportive coach–athlete relationships were associated with both less antisocial and more prosocial behavior in the sports context.     

Emotion Knowledge, Social Competence, and Behavior Problems in Childhood and Adolescence: A Meta-analytic Review

The present meta-analytic review examined the magnitude of the relation between discrete emotion knowledge and three of its most commonly studied correlates in childhood and adolescence: social competence, internalizing problems, and externalizing problems. Emotion knowledge demonstrated small to medium-sized relations with each correlate. Moderators of effect size were also examined and included multiple sample and methodological characteristics. Using random effects models, significant moderators of effect size for relations between emotion knowledge and externalizing problems included sample recruitment, sample age, and the source of externalizing problems ratings. Moderators of effect size were not found for emotion knowledge and social competence, and the effect sizes across samples for emotion knowledge and internalizing problems were homogeneous. Results highlight the relatively consistent yet modest relations between emotion knowledge and its correlates. Implications for applied research and new directions for research on emotion knowledge using innovative methods are discussed.     

中国道路文化的特征及其研究意义

鉴于自古以来中国道路建设都取得了巨大成就,而中国道路文化研究相对滞后,分析了道路文化的含义、特征、研究范围和意义。分析认为,道路是人工建设的工程,它与政治、经济、生态、环境等联系密切,具有丰富的历史文化内涵;道路的与时俱进的时代特征、辐射连通的开放特征、利在社会的公益特征,呈现出文化上的广泛联系和多元价值取向;它是文明的纽带、历史的见证和文化的载体;道路文化研究在中国道路建设和交通事业发展中具有基础性和战略性作用。     

荒诞派戏剧的深层特质探析

荒诞派戏剧是后现代主义文学的重要流派,后现代主义文学是一种无视任何既定规范的极度自由的“破坏性”文学,是某种意义上的“反文学”。     

Two tests for sequential detection of a change-point in a nonlinear model

In this paper, two tests, based on weighted CUSUM of the least squares residuals, are studied to detect in real time a change-point in a nonlinear model. A first test statistic is proposed by extension of a method already used in the literature but for the linear models. It is tested under the null hypothesis, at each sequential observation, that there is no change in the model against a change presence. The asymptotic distribution of the test statistic under the null hypothesis is given and its convergence in probability to infinity is proved when a change occurs. These results will allow to build an asymptotic critical region. Next, in order to decrease the type I error probability, a bootstrapped critical value is proposed and a modified test is studied in a similar way. A generalization of the Hájek–Rényi inequality is established.     

Developing a variables repetitive group sampling plan based on process capability index C pk with unknown mean and variance

In this paper, variables repetitive group sampling plans are developed based on the process capability index C _pk when the quality characteristic follows a normal distribution with unknown mean and variance. The sampling plan parameters such as the sample size and the acceptance constant are determined to minimize the average sample number. Symmetric and asymmetric cases, in percent defectives due to two specification limits, are dealt with for specified combinations of acceptable quality level and limiting quality level. Tables are provided and examples are given to use proposed plans in practice.