首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   175篇
  免费   4篇
教育   122篇
科学研究   20篇
各国文化   3篇
体育   13篇
文化理论   6篇
信息传播   15篇
  2022年   8篇
  2021年   6篇
  2020年   7篇
  2019年   14篇
  2018年   14篇
  2017年   14篇
  2016年   8篇
  2015年   3篇
  2014年   4篇
  2013年   28篇
  2012年   8篇
  2011年   11篇
  2010年   7篇
  2009年   8篇
  2008年   4篇
  2007年   1篇
  2006年   1篇
  2005年   1篇
  2004年   7篇
  2003年   5篇
  2002年   5篇
  2001年   1篇
  2000年   2篇
  1997年   3篇
  1996年   1篇
  1995年   1篇
  1993年   1篇
  1992年   1篇
  1979年   1篇
  1976年   1篇
  1974年   2篇
  1973年   1篇
排序方式: 共有179条查询结果,搜索用时 0 毫秒
131.
In recent decades, a huge variety of models for managing intellectual capital (IC) have been generated. However, understanding how IC management (ICM) models operate in practice and the issues that may be encountered when they are implemented remain a challenging issue. This is because there seems to be a significant gap between the enthusiastic development of ICM models in theory and the application of these models in companies. Therefore, more practically grounded research needs to be carried out. Reporting on action research projects and an interview study, this paper enriches the existing theoretical and framework-oriented IC literature by examining empirically the implementation of ICM projects and their outcomes in six Finnish companies. The findings of the paper include the challenges and success factors affecting the development of ICM projects, likewise the related outcomes and benefits. This provides useful insights for applying ICM to practice.  相似文献   
132.
In this paper we examine how incentives for collaboration shape collaborative behavior and researcher productivity in the context of EU-funded research networks. EU-funded research networks require researchers to collaborate as a condition for securing research funding. The presence of research funding, therefore, may influence collaborative behavior. Our approach involves isolating the effects of funding, collaboration and previous collaborations (prior to funding) on research output, and examining how the pattern of collaboration affects research productivity over time. Employing a panel of 294 researchers in 39 EU research networks over a 15-year period we find that while the impact of funding on productivity is generally positive the overall impact of collaboration within the funded networks is weak. When we delineate between pre-, during- and post-funding periods, however, we find some important differences. During the period of funding, collaboration did not lead to an increase in research production. In the post-funding period we find that although the number of collaborations decreases within the network, the impact of collaboration on productivity is positive and significant. Our findings suggest that collaborations formed to capitalize on funding opportunities, while not effective in enhancing researcher productivity in the short run, may be an important promoter of effective collaborations in the longer run.  相似文献   
133.
IntroductionBased on the hypothesis that there is a substantial rate of adults with prediabetes and undiagnosed diabetes mellitus (DM), our aim was to perform haemoglobin A1c (HbA1c)-based screening in a cohort of Croatian adults and estimate the prevalence of prediabetes and undiagnosed DM according to American Diabetes Association criteria.Materials and methodsThis multi-center, cross-sectional study performed in six Croatian hospitals included 5527 patients aged 40 to 70 years admitted to the Emergency Department or undergoing a primary care check-up. Haemoglobin A1c was measured from leftover whole blood samples using the enzymatic method on either Alinity c or Architect c-series analyser (Abbott Laboratories, Chicago, USA). Haemoglobin A1c between 39-47 mmol/mol was classified as prediabetes, while ≥ 48 mmol/mol as undiagnosed DM.ResultsAfter exclusion of 435 patients with known DM, the final cohort included 5092 patients (median age 57; 56% males). A total of 882 (17.3%) patients had HbA1c values between 39 and 47 mmol/mol. There were 214 (4.2%) patients with HbA1c ≥ 48 mmol/mol. Prediabetes prevalence ranged from 14.2% to 20.5%, while undiagnosed DM from 3.3% to 7.3%, with statistically significant differences among settings (P < 0.001). Age-stratified analysis showed that prediabetes and undiagnosed DM prevalence increase with age (P < 0.001), being 25.4% and 5.8%, respectively, in patients aged 60 to 70 years.ConclusionUnderlying impairment of glucose metabolism was identified in about one in five adults, with significant number of patients with already overt DM. These results should serve as a starting point for further steps directed towards promotion of preventive measures for DM in Croatia.  相似文献   
134.
135.
We examined the role of social support in turnover intention among new teachers. First, we tested and found evidence for a direct negative relationship between social support and turnover intention. Second, we tested the social support buffer hypothesis, and found that teachers with higher social support had lower turnover intention in the face of higher workload, compared to teachers with lower support. Third, we examined a mediational hypothesis, and found that social support acts indirectly, through job satisfaction in relation to turnover intention. These findings suggest that social support can be a valuable resource for new teachers.  相似文献   
136.
Spatial abilities vary during the menstrual cycle. The effects of a similar rhythm in men are unknown. Mental rotation and spatial visualization of young healthy volunteers (29 females and 31 males) were tested during the menstrual and periovulatory phase of the menstrual cycle in women, and during the low-testosterone and high-testosterone phases of the circatrigintan rhythm in men in random order. Men outperformed women in both tests. In women, higher scores were achieved during the periovulatory phase, in men during the low-testosterone phase. The correlation between actual salivary testosterone levels and spatial abilities were positive in women and negative in men. According to our knowledge, this is the first study showing effects of a male infradian rhythm on cognitive abilities.  相似文献   
137.
138.
139.
Purpose: Winning several national championships is an extraordinary feat that very few university coaches have accomplished. The objective of this study was to investigate how some of Canada’s most accomplished university team-sport coaches created and sustained a culture of excellence in their programs. Method: Six university coaches who had won more than 30 national titles participated in this study. Each coach participated in a semistructured interview, and the qualitative data were inductively analyzed using a thematic analysis. Results: The coaches noted that hard work and daily attention to detail, effective emotional management of themselves and their athletes, and continuous self-assessment (self-reflection and seeking mentors) were crucial elements that led to sustained excellence in their programs. Conclusions: This study offers one of the first empirical accounts of how highly successful university coaches developed and maintained a culture of excellence and success in their high-performance sport setting.  相似文献   
140.
Besides cognitive learning effects, short-term environmental education (EE) is often regarded as ineffective in intervening with participants' environmental attitudes and behaviour. However, in Germany, school classes often participate in such 1-day EE programmes because they better match the school curriculum in contrast to longer (residential) programmes. We therefore monitored a 1-day outreach EE programme on global climate change to reveal whether environmental attitudes and/or connectedness with nature of tenth graders are affected. Students from German high schools (college preparatory secondary school level, ‘Gymnasium’) (N?=?114) from age 14 to 19 participated in the programme (treatment group). It consisted of two student-centred learning units on the topic of climate change. Additionally, we chose a control group of students who did not participate in the programme. To measure students' environmental attitudes and connectedness with nature, we administered the Two Major Environmental Values (2-MEV) and the Inclusion of Nature in Self scale in a pre-, post- and retention test design. The pre-test was administered 1 week before, the post-test directly after and the retention test 4 to 6 weeks after programme participation. Analyses revealed a positive long-term effect only for utilitarian values (one of the two major environmental factors of 2-MEV) which decreased significantly. Therefore, depending on the programme's content, short-term EE programmes indeed may have an influence on participants' environmental attitudes.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号