林业在应对气候变暖中的作用

由于人类的活动,加剧了大气的温室效应,使得地球空间热散射变慢,而致地球变暖。全球气候变暖已成为全球关注的重大问题。环境政策的当务之急是立即着手采取措施,使全球总的碳的循环大致保持平衡。在这方面,森林和林业能起到决定性作用。     

The entrepreneur's role stressors and proclivity for a venture withdrawal

We test a causal model of entrepreneurs’ role stressors—role conflict, role ambiguity, and role overload—and their relationships with exhaustion and reduced perceptions of compensation for one's efforts which over time lead to the development of a proclivity for venture withdrawal. Using structural equation modelling and a 2-year longitudinal data set, we find empirical support for the proposed causal model. Overall, the empirical results support the indirect influence of role stressors and highlight the direct effects of enhanced exhaustion and reduced perceptions of compensation for one's efforts on a proclivity for a new venture withdrawal. The paper concludes by proposing implications for theory and further research.     

Project Management Office Transformations: Direct and Moderating Effects That Enhance Performance and Maturity

This article aims at understanding organizational change through the study of project management office (PMO) transformations. This article suggests that performance resulting from a PMO transformation is moderated by the organizational context, change management, and by changes in coordination mechanisms—control or service orientation. This exploratory study adopted a quantitative methodology involving a sample of 184 PMO changes. It confirms the multifaceted nature of the context involved in a PMO transformation. External events play a key role in triggering change and improving performance. Key findings suggest that increasing the PMO’s supportive role improves project performance, business performance, and project management maturity. Conversely, increasing the PMO’s control role does not improve performance. This study's major contribution is to provide some empirical evidence concerning organizational change management.     

How do leaders' perceptions of organizational health climate shape employee exhaustion and engagement? Toward a cascading-effects model

Although researchers and practitioners increasingly focus on health promotion in organizations, research has been mainly fragmented and fails to integrate different organizational levels in terms of their effects on employee health. Drawing on organizational climate and social identity research, we present a cascading model of organizational health climate and demonstrate how and when leaders' perceptions of organizational health climate are linked to employee well-being. We tested our model in two multisource studies (N_{Study 1} = 65 leaders and 291 employees; N_{Study 2} = 401 leader–employee dyads). Results showed that leaders' perceptions of organizational health climate were positively related to their health mindsets (i.e., their health awareness). These in turn were positively associated with their health-promoting leadership behavior, which ultimately went along with better employee well-being. Additionally, in Study 1, the relationship between perceived organizational health climate and leaders' health mindsets was moderated by their organizational identification. High leader identification strengthened the relationship between perceived organizational health climate and leaders' health mindsets. These findings have important implications for theory and practice as they show how the dynamics of an organizational health climate can unfold in organizations and how it is related to employee well-being via the novel concept of health-promoting leadership.     

高校学生党员在学风建设中的作用探讨

以学生党员的教育管理为切入点,加大学生党员的管理要求,促进学生党员的全面发展,提高学生党员的综合素质,在学风建设中充分发挥学生党员的先锋模范作用,带动身边学生养成遵规守纪的良好习惯,树立远大理想,塑造积极进取的品质,促进学风建设的良性发展。     

汽车运输中的超载问题及相关对策

随着我国公路建设不断发展,汽车作为实惠而又便捷的运输工具,被越来越多的用于运输货物。由于道路乱收费不合理导致的运输成本增大以及对超载危害性认识不够等因素,造成目前汽车运输中因为超载而引发的道路安全事故越来越频繁地见诸报端,并成为近年来汽车运输过程中交通事故频发的重要诱因。必须重新认识汽车运输途中的超载问题,并采取针对性相关对策。     

大学生创新效能感中介作用的实证研究

创新个体的效能感与其创新能力间存在着密切的正向相关性。探析大学生创新效能感的中介作用对进行大学生创新能力的研究有着显著的辅助作用。文章在实证分析的过程中,验证了大学生创新效能感中介作用的路径,并基于实证分析的结果,提出了以创新效能感为主体的提升大学生创新能力的对策建议。     

学生党员在加强学风建设中的贡献分析

学风是学校治学理念的综合反映,是学校校风和大学精神的重要体现。"以学生为本"是学校学风建设的工作理念和思路。充分发挥学生党员和党建工作的作用是具有极其重要意义的。大学生党员是党员队伍中比较特殊的群体,既是党员,又是学生,他不但是在学习、工作、社会实践能力等方面比较突出的学生,还具有较高共产主义觉悟,不惜牺牲个人利益,全心全意为人民服务的精神,是广大同学中的佼佼者和先进分子。     

社会资本视角下的居民就医行为探讨

本文提出了通过社会资本就医的问题,然后对社会资本的相关理论进行梳理,总结了社会资本与居民就医的有关研究并作讨论,希望能给居民就医方面的相关研究提供一些启示。