北方园林彩叶植物抗寒性研究进展

低温是制约北方园林彩叶树种发展的重要因素。本文概略介绍了植物受冻害的机理、植物抗寒育种、生理生化指标在植物抗寒性研究中的作用、植物生长调节剂对植物抗寒的影响、彩叶植物抗寒生理等研究进展;提出了植物抗寒性研究的问题及对未来工作的展望。     

案例研究的5种范式及其选择

近年来兴起的混合研究法为案例研究者提供了新思路,案例研究也因此拥有了更多可供选择的研究范式。现有研究尚未梳理这些范式,也未找出其来源,更不可能告诉案例研究者如何选用这些范式。系统梳理案例研究相关文献,以方法论属性与资料搜集方式为依据,划分得到文献计量、文献荟萃分析、实地观察与访谈、问卷调查、混合研究5种案例研究范式。随后,归纳得到每种范式的12个研究步骤及各种范式之间的内在关联。最后,从案例研究者出发,归纳了案例研究选择过程。主张从案例研究者出发,通过匹配案例研究范式与限制性因素以及评价研究结果并通过反馈环节来改进案例研究选择过程。解决了案例研究者可以选择哪些研究范式以及如何选择的问题,为案例研究者选用规范、科学与适合自身的研究范式提供了一定的借鉴。     

技术权力、组织间信任影响领导行为的跨案例研究

在技术创新网络中,非对称的技术权力和不同程度的组织间信任引致了核心企业对合作企业采取不同领导行为。从心理定位视角出发,基于技术权力和组织间信任两个变量提出核心企业的4种领导行为——技术锁定、技术防御、技术扶持与技术标准,通过跨案例研究,分析论证了这4种领导行为,并对合作过程中核心企业的领导行为进行了科学解释,以帮助合作企业科学预测领导行为,进而提高运行绩效和网络地位。     

企业信息技术匹配动态调整模式的多案例研究

不断变化的内外部环境使得企业需要不断调整才能实现信息技术与业务的动态匹配。应用案例研究方法,分析3家企业信息技术匹配的动态调整模式和匹配程度变化,并通过内外部环境分析确定信息技术匹配动态调整模式的影响因素。研究发现：①企业信息技术匹配动态调整存在理想轨迹、矛盾决策、过量改革及飘忽立场等4种基本模式;②动态调整后,企业信息技术匹配程度可能发生变化,这取决于调整前的信息技术匹配程度及其调整模式;③市场竞争激烈、国家政策支持、客户需求变化、企业认识变化、管理模式创新等因素影响企业选择信息技术匹配动态调整模式。基于3家中国企业的多案例分析结果,可为我国企业实现信息技术与业务动态匹配提供参考。     

Family formation and economic insecurity among youth in South Africa

ABSTRACT

Youth unemployment continues to be a burden and concern for the South African government. Being economically insecure, the situation is dire with the government needing to provide resources to a population who should be economically independent. There is a need to look at the social determinants of economic insecurity among youth in South Africa. Family formations could either promote or inhibit economic well-being. This article aims to assess whether economic security improves as youth enter into unions and/or have children. The South African National Income Dynamics Study is used. Unmarried youth with no children are measured at baseline (2008) and followed up over time to examine whether economic security status changes as union status changes. Results show that while economic security, employment (from 7.61% to 25.67%) and net income per month (from 19.48% to 32.79%) increase over time, youth who marry but have no children have the lowest risk of economic insecurity (relative risk ratio?=?0.02, p < 0.05) compared with those who remain unmarried but have children. Special attention needs to be given to youth who have children and are unmarried and among those who marry and have children soon after.     

Evaluation of student feedback

We examine a flexible assessment system that allows students to determine the weights allocated to each course component and to re-allocate the weights in response to achieved scores. The flexibility is intended to encourage students’ participation in the learning process, thereby promoting self-regulated learning skills. We compare this assessment system to a traditional system and to another system, in which the students may choose their own weights but cannot change them later in the term. We examine the impact on students’ motivation as measured by the Motivated Strategies for Learning Questionnaire (MSLQ), as well as the impact on grades and students’ attitudes. Our results indicate little improvement in motivation, grades or attitudes when students design and commit to their grading plans early in the term. However, the more flexible system, which allows for re-allocation, appears to improve students’ grades, self-reported motivation and attitudes.     

A Commentary on ‘Professionalizing Claims and the State of UK Professional Accounting Education: Some Evidence’

This paper describes and allows interaction with the issues involved in a major investment decision. In the summer of 1997, UKH faced major decisions concerning the purchase and funding of new plant and equipment. The authors were given excellent access to the company and were able to document key steps in the decision process. The issues are set out in a case study format which allows the reader to retrace the analyses carried out within UKH. A number of tasks are suggested which should test, develop and enhance a range of analytical, social and negotiation skills. The case can be handled in a variety of ways and most of the suggested tasks can be undertaken or omitted depending on the pedagogical objectives of the course/instructor.     

普惠小微金融发展研究 ——基于安徽、湖北和深圳模式的比较分析

本文在分析普惠小微金融支持小微企业发展政策背景基础上,比较研究了安徽、 湖北、深圳等省市普惠小微金融模式,并据此提出进一步完善普惠小微金融服务、支持小微企 业发展的政策建议。文章认为,应当坚持金融回归本源的原则,优化小微企业发展的货币政策 环境;发展普惠小微金融,优化证券保险服务体系,完善财税等配套制度。     

An Exploratory Investigation of Study-Abroad Online Information Cues

Despite numerous studies on the factors involved in the decision-making process on study abroad, little attention has been paid to the initial stage when students process information. This qualitative study aims to map out the cues involved when Chinese students process study-abroad information from an information-processing perspective. Findings showed that family members, the Internet, and agents were the main channels through which respondents obtained information. Recognition of qualifications by the source country, employment prospects, and price were identified as important cues. This study identified the determining role of cues by using a rating system. Using marketing cues, marketers may be able to design and align marketing strategies which are more efficient at attracting Chinese students in the future.     

Business Students' Choice of Short-Term or Long-Term Study Abroad Opportunities

Recent years have seen a proliferation of short-term study abroad opportunities. Although they are both supplementing and replacing semester-long study abroad programs, research has focused primarily on semester (long-term) programs. We draw on the theory of planned behavior (TPB) to explore factors that predict why students choose long-term and short-term programs. Results indicate that students perceive more social pressure to engage in short-term programs, and higher barriers limiting participation in long-term programs. All TPB factors significantly predicted students' intentions to study abroad in both short-term and long-term programs with one exception; perceived behavioral control did not significantly predict intentions to participate in short-term programs. These findings can be used to improve marketing of short-term and long-term programs by addressing student concerns specific to each type of program, potentially increasing the number of students choosing to study abroad.