大学生常见心理压力及应对

随着社会竞争的不断加剧,大学生的学习压力、经济压力、就业压力也相应增大,心理问题越来越多,大学生心理健康状况令人担忧。正确认识大学生心理压力主要表现形式及影响因素,并采取相应的对策进行心理保健也变得日益重要。     

社会工作专业培训的若干问题研究

近20多年来,随着社会工作职业化、专业化进程的加快,社会工作专业培训在中国大陆也获得了快速发展,主要形成了普及型培训、提高型培训、职业资格考前培训等三个培训模式,取得了较好的成效。然而,当前的社会工作专业培训中存在学员的需求得不到完全满足、学员的学习时间得不到充分保障、社会工作专业培训教材和参考资料严重不足及相关机制不健全等诸多问题,必须采取配合工作要求设计社会工作专业培训的内容及方式、完善社会工作专业培训网络、加强社会工作专业培训教材和参考资料建设及健全相关培训机制等有力措施,这样才能使社会工作专业培训收到预期的效果。     

Structural effects of cognitive and affective reponses to web advertisements,website and brand attitudes,and purchase intentions: The case of casual-dining restaurants

This study investigates the structural relationships among responses to website advertisements, website attitudes, brand attitudes, and purchase intentions in the case of web advertisements for casual-dining restaurants. Responses toward advertising (Rad) factors were categorized as cognitive responses and affective responses. The SEM model in LISREL was used to examine the interrelationships among the proposed hypothesized constructs. Several empirical results were obtained. First, Rad had a positive effect on website attitudes. Second, website attitudes had a positive effect on brand attitudes. Third, brand attitudes had a positive effect on purchase intentions. Finally, some discussion and implications of the study are provided.     

Bilateral Trade Balances: Evidence from Malaysia*

This study examines the impacts of real exchange rates on the bilateral trade balances of Malaysia with the USA, Japan and Singapore. The results for the long‐run cointegrating vectors show that depreciation or devaluation of real exchange rates will improve bilateral trade balances. In the short run, there is some evidence of the J‐curve phenomenon. Changes in real money supply contribute greatly to changes in real exchange rates. Generally, changes in real exchange rates contribute significantly to changes in bilateral trade balances. Monetary policy can be used to influence bilateral trade balances.     

有限理性条件下民营企业资源配置欠优的机理研究

以浙江民营企业为例,借鉴有限理性博弃的相关理论,本文建立了有限理性条件下我国民营企业资源配置协调博弃的快速学习模型和复制动态进化模型;详细分析了存在理性局限的情况下,民营企业资源配置策略结果偏离最优状态的机理,并指出改善这种欠优资源配置策略的可能途径.     

Evaluating,Comparing, Monitoring,and Improving Representativeness of Survey Response Through R‐Indicators and Partial R‐Indicators

Non‐response is a common source of error in many surveys. Because surveys often are costly instruments, quality‐cost trade‐offs play a continuing role in the design and analysis of surveys. The advances of telephone, computers, and Internet all had and still have considerable impact on the design of surveys. Recently, a strong focus on methods for survey data collection monitoring and tailoring has emerged as a new paradigm to efficiently reduce non‐response error. Paradata and adaptive survey designs are key words in these new developments. Prerequisites to evaluating, comparing, monitoring, and improving quality of survey response are a conceptual framework for representative survey response, indicators to measure deviations thereof, and indicators to identify subpopulations that need increased effort. In this paper, we present an overview of representativeness indicators or R‐indicators that are fit for these purposes. We give several examples and provide guidelines for their use in practice.     

我国应急信息系统及其管理架构

当前,突发事件应对已成为各级政府无法回避的重大课题。作为应急管理的稳压器、协调器和控制器,应急信息的有效传播和应用对突发事件的科学应对至关重要,而对我国应急信息系统及其管理架构尤其值得深入研究。     

The Emergence of Second‐Tier Auditors in the US: Evidence from Investor Perceptions of Financial Reporting Credibility

We examine changes in the association between auditor type (Big 4, Second‐Tier, and Other non‐Big 4) and perceived financial reporting credibility in the wake of events (e.g., Andersen's failure, the implementation of SOX, creation of the PCAOB, etc.) which led to significant growth in Second‐Tier client portfolios and increased scrutiny of Second‐Tier audit practices. Our results reveal that financial reporting credibility of Second‐Tier clients was lower than that of Big 4 clients and was indistinguishable from that of Other non‐Big 4 clients pre‐Andersen. However, post‐Andersen, we find that financial reporting credibility of Second‐Tier clients is higher than that of Other non‐Big 4 clients and is indistinguishable from that of Big 4 clients. We expect that our results will be of interest to regulators, both in the United States and in the European Union, who have expressed concerns about the current state of competition in the audit market, management and boards of directors that are contemplating switching to a Second‐Tier audit firm, and academics investigating quality differences among audit firm types.     

基于时频分析的裂纹转子碰摩故障特征研究

为研究转子系统耦合故障特性,采用有限元方法建立了含有横向裂纹、转静碰摩的非线性转子动力学模型。首先研究了不同转速下裂纹、碰摩单一故障下转子系统的振动响应,其次研究了两种故障耦合情况下系统的振动响应特征。采用波形图、FFT谱图、瞬时频率和Hilbert-Huang时频谱(HHS)相结合的方法对故障转子振动信号进行了分析。分析结果表明:运用多种时频分析相结合的方法可以较为全面地了解转子的故障特征,裂纹转子在1/5、1/3临界转速时会发生较为明显的5X、3X谐波,且裂纹的产生会导致响应幅值增大,从而引起更为严重的碰摩。      

Using Electronic Response Systems in Economics Classes

College instructors and students participated in a pilot project at the University of Akron to enhance student learning through the use of a common teaching pedagogy, peer instruction. The teaching pedagogy was supported by the use of technology, an electronic personal response system, which recorded student responses. The authors report their experiences in using this technology-enhanced teaching pedagogy and provide another example of an active and collaborative learning tool that instructors can use to move beyond “chalk and talk.” Preliminary survey results from students participating in this pilot project are also reported.