美国高等教育质量认证机构及其活动特征研究

美国高等教育质量认证活动是非政府、自愿的民间行为,但其认证活动却因科学客观、公正严明而享誉世界。究其原因,笔者认为美国高等教育质量认证机构采取的种种手段、方式方法对质量产生了保证作用,如权威的资格认可、认证机构专家的多元构成、认证标准的个性化和科学规范的操作程序等,学习和借鉴美国高等教育质量认证机构及其活动的特征将有益于我国构建科学、规范的教育质量评估制度。     

维纳归因理论在大学生思想政治教育中的运用

归因理论作为社会心理学中的重要概念和理论，对思想政治教育一直具有重要的借鉴作用。文章概述了维纳归因理论，分析其优点和不足，并在此基础上就如何在思想政治教育中正确运用维纳的归因理论提出了自己的看法和观点。     

The Transport System and Society’s Metabolism in the UK

This paper analyses the interrelation between the transport system and measures of resource consumption such as material and energy consumption over a 60-year period (1937–1997) in the UK. Non-motorized transport and time consumption for mobility are estimated in addition to conventional measures of transport. During the period analyzed, the UK population grew by 20% while transport of goods and persons increased more than threefold and material and energy consumption almost doubled. The transport intensity of domestic material input (DMI) doubled to 300 ton-kilometers (tkm) per ton of DMI while the transport intensity of domestic energy consumption (DEC) doubled to 20 tkm per gigajoule (GJ) of DEC. Thus, while the material and energy intensity of GDP declined significantly, a well-established trend in many advanced countries, the transport intensity of materials and energy consumption rose. These findings suggest a close link between transport, economic development, and long-term structural transformations. In the case of personal transport, a rebound effect was also observed: whereas the average speed of transport has greatly increased, the average number of hours per day devoted to personal transport has not declined.     

地方政府支出与农村居民消费需求：基于1998-2007年省级 面板数据的经验分析

 政府支出对居民消费需求产生挤出抑或挤入效应是理论界最近关注的焦点之一。本文在理论诠释地方政府支出对农村居民消费需求的传导机制以及模型建立的理论框架下,通过建立地方政府支出与农村居民消费支出之间的个体固定效应变截距模型,运用我国31个省份1998-2007年的经验数据进行实证检验,结果表明：地方政府财政支农支出对农村居民消费具有显著的挤入效应,而转移性支出与农村居民消费的相关程度并不明显。基于理论分析和实证检验结果,本文最后针对地方政府扩大农村居民消费提出相关建议。     

A class of symmetric bivariate uniform distributions

A class of symmetric bivariate uniform distributions is proposed for use in statistical modeling. The distributions may be constructed to be absolutely continuous with correlations as close to±1 as desired. Expressions for the correlations, regressions and copulas are found. An extension to three dimensions is proposed.     

关于当代资本主义生产力与生产关系问题的思考

21世纪中国特色社会主义发展需要强劲的动力,社会主要矛盾的变化是新动力,改革是直接动力,创新是引领经济发展的第一动力,共同富裕是人民的热切追求,也是21世纪中国特色社会主义发展的人民主体动力,中华民族伟大复兴的中国梦是民族主体动力,坚定共产主义远大理想是共产党人的精神动力,这六种动力构成了一个有机的动力体系,共同推动21世纪中国特色社会主义不断向前发展。     

The Savvy Caregiver Program: Impact of an Evidence-Based Intervention on the Well-Being of Ethnically Diverse Caregivers

This article reports on the impact of the Savvy Caregiver Program (SCP) on English-speaking caregivers of Hispanic, Black/African American, and Asian/Pacific Islander descent. Caregivers completed a questionnaire prior to study enrollment, at 6 and 12 months postenrollment. Caregivers in all 3 ethnic groups showed more caregiver competence, reduced depression, greater tolerance for care recipients’ memory problems, better management of their overall situation, and improved perception of that situation 6 months and 12 months post-enrollment. The study demonstrates that in the sample studied the SCP was as effective in helping ethnically diverse caregivers as it has shown to be with Caucasian caregivers.     

Association between sexually explicit messages and sleep health among French sexual minority men

It has been demonstrated that sexual minority men (SMM) participate in sexting. While research has shown that engagement in the exchange of sexually explicit media is associated with poor health outcomes, no previous research has investigated its association with sleep health outcomes. This study sought to examine the association between sexually explicit media and sleep health among SMM, a population that suffers from poor sleep health. A popular geosocial networking application was used to recruit SMM individuals (N?=?580) in the Paris, France, metropolitan area. Multivariate analyses, adjusting for sociodemographics, were used to test the association between the frequency of sexually explicit messaging and three dimensions of sleep health: (1) sleep quality, (2) sleep duration, and (3) two aspects of sleep problems. In multivariate analyses, those who reported engaging in sexually explicit messaging more were more likely to report getting less than seven?hours of sleep (aRR = 1.24; 95% CI = 1.08, 1.43) compared with those who reported engaging in sexually explicit messaging less. No significant associations were found between sexting and sleep quality or reporting sleep problems. Sexually explicit messaging was associated with shorter sleep duration. Intervention targeted at individuals who sext could potentially improve sleep health outcomes.     

Model selection for factor analysis: Some new criteria and performance comparisons

This paper derives Akaike information criterion (AIC), corrected AIC, the Bayesian information criterion (BIC) and Hannan and Quinn’s information criterion for approximate factor models assuming a large number of cross-sectional observations and studies the consistency properties of these information criteria. It also reports extensive simulation results comparing the performance of the extant and new procedures for the selection of the number of factors. The simulation results show the di?culty of determining which criterion performs best. In practice, it is advisable to consider several criteria at the same time, especially Hannan and Quinn’s information criterion, Bai and Ng’s IC_p2 and BIC₃, and Onatski’s and Ahn and Horenstein’s eigenvalue-based criteria. The model-selection criteria considered in this paper are also applied to Stock and Watson’s two macroeconomic data sets. The results differ considerably depending on the model-selection criterion in use, but evidence suggesting five factors for the first data and five to seven factors for the second data is obtainable.