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131.
The influence of ??ethnic politics?? has been demonstrated in a range of empirical studies of economic growth, violence, and public goods provision. While others have raised concerns about the measurement of ethnic variables in these works, we seek to situate such discussions within a more thoroughgoing conceptual analysis. Specifically, we argue that four conceptual approaches??demographic, cognitive, behavioral, and institutional??have been used to develop theories in which the mechanism that relates causes to outcomes is ethnic political competition. Within this literature, we believe that institutional approaches have been relatively under-appreciated, and we attempt to address that imbalance. We begin by critically reviewing the three main ways in which ethnic variables have been specified and operationalized, delineating the assumptions and trade-offs underlying their use. Next, we describe an institutional approach to the study of ethnic politics, which focuses on the rules and procedures for differentiating ethnic categories. We propose some new indices based on this latter approach that might be developed and used in future research. Subsequently, we analyze the relationship between each of these approaches and patterns of ethnic political competition in a set of six country cases, highlighting their strengths and weaknesses, as well as theoretical links between them.  相似文献   
132.
Drawing from the concepts of optimal foraging theory, this paper presents and tests the assumptions of a foraging theory of police behavior during hot spots patrols. The theory explains why, over time, officers involved in hot spots policing interventions would leave the hot spots they are assigned to police and begin working within other locations. We test what factors influence the amounts of activity that officers undertake outside of their assigned hot spots and at nearby streets using data gathered as part of the Philadelphia Foot Patrol Experiment. Officers performed more activity outside of their beats as the experiment progressed. Several theoretically relevant variables predict the level of activity that officers perform outside their beats, including the size of the target area and the amounts of crime occurring within and outside of the target area. “Dosage diffusion” might be one reason why hot spot interventions have diminishing effects over time. From an optimal foraging theory perspective, hot spots requiring police officers to constrain their actions to pre-defined areas can be perceived as counter-intuitive by the officers, especially over extended periods of time. The results of this study support the suggestion that hot spots patrols should be short-term and randomly rotated across hot spots.  相似文献   
133.
Brant M  Thomas E 《Newsweek》2006,147(10):44-45
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135.
This article unwraps the nature and source of human errors involved in Radiology, revealing unique elements of the specialty that warrant special consideration in medical malpractice cases. The authors compare these errors to negligent practices in other professions and conclude that a general concept of negligence cannot adequately address the complexities of decision-making in Radiology. After analyzing legal precedent, they develop an innovative jury instruction that recognizes particular situations of error in Radiology that occur in the absence of negligence.  相似文献   
136.
We examine how incentives for test prep varied between math and English language arts (ELA) on U.S. state accountability exams. We collected data on exam structure for grade 3 to 8 tests in six states that are the setting for most U.S. research in literatures where accountability matters. We show that math exams typically measured ability more precisely for students on the margin of achieving proficiency. This gave educators an incentive to spend more time preparing students for math tests than for ELA tests, consistent with the common finding of larger math effects in the literature.  相似文献   
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138.
In societies where civic space is closing, integrity in the civic sector is critical for its sustainability. Where state regulatory frameworks are inadequate, or worse, manipulative, self-regulation can help defend the sector's integrity and strengthen the ability of civic associations to serve the public and contribute to democracy. This paper describes the strategic role in self-regulation of a particular type of third sector actor in Mexico, the coordinating body or civic network. A case study of the Mexican Center for Philanthropy (CEMEFI) and its Accreditation in Institutionalization and Transparency project illustrates the contribution of NGO networks in service to the sector, and their key role in diffusion of norms of transparency and accountability within the civic sector and beyond.  相似文献   
139.
Employee resilience (ER) is often needed to face demands inherent in public sector work. Some types of demands, however, may hinder its development, rather than provide the type of challenging adversity from which resilience can develop. Public sector job demands have been a long-standing issue for public workplaces and employees but are also growing in salience as organisations face an increasingly variable, uncertain, complex, and ambiguous environment. Drawing on the Job Demands–Resources model and the challenge/hindrance stress literature, this multi-level study of Aotearoa New Zealand civil servants (n = 11,533) in 65 public sector organisations shows that ER is negatively affected by demands such as job insecurity, unclear job and organisational goals, and inter-agency collaboration. However, organisational resource constraints are positively associated with ER. This study identifies core PA job and organisational demands that hinder ER and offers practical implications and suggestions for further research.

Points for practitioners

  • Job role ambiguity, job insecurity, unclear organisational goals, and inter-agency collaboration are common job and organisational demands in public sector workplaces.
  • For employees, these demands are stressors that employees do not feel they control, and may therefore hinder employee resilience: the ability to learn, adapt, and leverage networks in the face of challenges.
  • Surprisingly, resource constraints, where employees have to ‘do more with less’, might help employees develop ER.
  • While inter-agency collaboration has potentially many benefits, it appears to have negative spillover effects on employees unaware of it or not involved in it.
  • To encourage ER, agencies should clarify both organisational and job goals, and assure job security, control, competency development, and supervisor support.
  相似文献   
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