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   1816篇
  免费   28篇
  国内免费   17篇
教育   1253篇
科学研究   208篇
各国文化   20篇
体育   204篇
综合类   28篇
文化理论   40篇
信息传播   108篇
  2022年   24篇
  2021年   27篇
  2020年   44篇
  2019年   70篇
  2018年   75篇
  2017年   80篇
  2016年   83篇
  2015年   36篇
  2014年   62篇
  2013年   205篇
  2012年   77篇
  2011年   54篇
  2010年   50篇
  2009年   46篇
  2008年   45篇
  2007年   62篇
  2006年   61篇
  2005年   54篇
  2004年   48篇
  2003年   94篇
  2002年   126篇
  2001年   115篇
  2000年   71篇
  1999年   24篇
  1998年   15篇
  1997年   18篇
  1996年   14篇
  1995年   16篇
  1994年   14篇
  1993年   15篇
  1992年   9篇
  1991年   10篇
  1990年   10篇
  1989年   4篇
  1988年   4篇
  1987年   8篇
  1986年   4篇
  1985年   10篇
  1984年   7篇
  1983年   5篇
  1982年   6篇
  1981年   4篇
  1980年   4篇
  1978年   7篇
  1974年   3篇
  1973年   4篇
  1967年   4篇
  1887年   3篇
  1865年   4篇
  1838年   2篇
排序方式: 共有1861条查询结果,搜索用时 0 毫秒
61.
This article presents a comparative analysis of the determinants of early school leaving (ESL) at the country level. We decompose ESL rates into two components: a ‘primary’ rate reflecting unqualified school leaving from initial education, and a second component accounting for early school leavers who participate in training programmes. Both may be influenced by structural and policy determinants. We examine how the ESL rate is affected by macro-economic and social context variables such as GDP/capita, growth, poverty, and youth unemployment, as well as system characteristics of the education system (such as legal school leaving age, grade retention, early tracking, and size of vocational education) and the labour market and social protection systems (minimum wages, unemployment insurance).  相似文献   
62.
Children with mathematics learning disabilities in Belgium   总被引:6,自引:0,他引:6  
In Belgium, between 3% and 8% of the children in elementary schools have mathematics learning disabilities (MLD). Many of these children have less developed linguistic, procedural, and mental representation skills. Moreover, a majority of the children have been found to show inaccurate prediction and evaluation skills in Grade 3. MLD often become obvious in elementary school. Whereas some children are retained, others are referred to special education. During the last 10 years, the number of children in special education and the number of children with learning disabilities who are following a special guidance program in general education (inclusive education) have increased. Children in Belgium with MLD can get therapy for about 2 years. Nevertheless, many problems continue unresolved even in high school and adulthood.  相似文献   
63.
The present study investigates the relation between spatial ability and visuo-spatial and verbal working memory in spatial text processing. In two experiments, participants listened to a spatial text (Experiments 1 and 2) and a non-spatial text (Experiment 1), at the same time performing a spatial or a verbal concurrent task, or no secondary task. To understand how individuals who differ in spatial ability process spatial text during dual task performance, spatial individual differences were analyzed. The tasks administered were the Vandenberg and Kuse [Vandenberg, S. G., & Kuse, A. R. (1978). Mental rotation, a group test of three-dimensional spatial visualization. Perceptual and Motor Skills, 47, 599-604.] mental rotation test (MRT) and a reading comprehension task (RCT). Individuals with high (HMR) and low (LMR) mental rotation differed in MRT scores but had similar RCT performance. Results showed that the HMR group, in contrast with LMR counterparts, preserved good spatial text recall even when a spatial concurrent task was performed; however, Experiment 2 revealed a modification of spatial concurrent task performance in LMR as well in HMR group. Overall, results suggest that HMR individuals have more spatial resources than LMR individuals, allowing them to compensate for spatial working memory interference, but only to a limited extent, given that the processing of spatial information is still mediated by VSWM.  相似文献   
64.
The training of information personnel at the middle level in Africa is discussed. The data were derived from the latest issues of the prospectuses of the library schools at the University of Ibadan and Botswana as well as a questionnaire designed to ascertain the characteristics of the trainees in both institutions. The study reveals that the curricula of both schools extend beyond preparing trainees for the techniques and processes of a library. The trainees in both schools have sufficient educational background and library/information work experience to enable them to manage the many one-man libraries scattered all over Africa effectively, after undergoing the diploma training. It is recommended that an amalgam of the curricula of both schools can be made the standard curriculum for any institution involved in a training programme for information personnel at this level.  相似文献   
65.
This paper presents a comparative analysis of the structure of national higher education networks in six European countries using interlinking data. We show that national HE systems display a common core–periphery structure, which we explain by the lasting reputational differences in science, as well as the process of expansion and integration of HE systems. Furthermore, we demonstrate that centrality in national networks (coreness) is associated with organizational characteristics, reflecting that interlinking is motivated by access to resources and the status of the organizations concerned, and that national policies impact network structures by influencing the level of inequality in the distribution of resources and status. Finally, we show that, as an outcome of the core–periphery structure, the strength of ties between two HEIs is largely determined by their individual coreness, while the impact of distance is too small-scale to alter the network structure generated by organizational attributes.  相似文献   
66.
In the current study, we examined the relationship between serum creatine kinase (CK) activity following upper body resistance exercise with a 1- or 3-min rest between sets. Twenty men performed two sessions, each consisting of four sets with a 10-repetition maximum load. The results demonstrated significantly greater volume for the 3-min condition (M = 4156 kg, SD = 867, for 3 min; vs. M = 3503 kg SD = 759, for 1 min; p < .001), with no significant differences in delta CK activity between conditions (p = .574). Nevertheless, there was a weak correlation between the delta CK activity and total volume of exercise completed (r = .55 with a 1-min rest, and r = .45 with a 3-min rest). Therefore, the volume following upper body resistance exercise correlates weakly with serum CK levels, irrespective of rest interval length between sets.  相似文献   
67.
Since the turn of the century large groups of former institutionalised children have exercised their right to see their ‘personal files’, and this has drawn widespread attention to these documents and their potential in scholarly research. This article explores the meanings of personal files from the period 1945–1984 as sources for both historical researchers and adult care leavers themselves, in the context of the orphanages in Ghent, Belgium. Based on the experiences of those who have consulted their files, we come to the conclusion that the personal files of the Ghent orphans provide some new information but, at the same time, leave a lot of issues unresolved. Although the files offered significant insights for researchers studying the most recent period in the history of the Ghent orphanages, it is difficult to see them as ‘keys to the past’ for former orphans who are trying to (re)construct their own, individual life histories.  相似文献   
68.
This article considers the transmission of knowledge in higher education. It takes the metaphor of the music industry that pre‐selects the music people can buy. The sales potential is the leading principle in the selection process. Often the small producer is excluded because his or her music is not of commercial interest. The end‐customer does not know what he or she is missing because he or she has never heard the music. It is to be feared that a similar market principle will also influence the selection of knowledge and affect the capacity of higher education institutions to freely generate and transmit new knowledge. The globalization of higher education risks homogenizing the cultural traditions of the non‐Western world through a process of Western cultural domination. On the other hand, the Internet, via open source software like LINUX, might serve to democratize higher education and allow greater grassroots input.  相似文献   
69.
ABSTRACT

Population aging is exacerbating the loss of competences in the workforce and simultaneously young people neither in employment nor in education and training (NEETs) are struggling to be reengaged in employment. These issues, which are deemed priorities for the European policy agenda, could be addressed by triggering active aging dimensions, valuing and exploiting older adult entrepreneurs’ knowledge for enhancing youngsters’ entrepreneurial attitudes, through mentoring. This paper reports the results of a study based on an intergenerational learning program, carried out in 2018 in Germany, Italy and Slovenia. The study was aimed at developing and testing one training on mentoring addressing 41 older adult entrepreneurs (55 and over), and two intergenerational learning trainings aiming at boosting entrepreneurial competences of 33 NEETs (aged 18–29). The impact of the program on older adult entrepreneurs and NEETs was assessed through a pre and post-evaluation using qualitative and quantitative tools. Findings at country level were treated as national case-studies and then the latter were compared by considering them as a multiple embedded case-study. Results indicated that, to different extent in the study countries, mentors learned and enhanced mentoring competences, e.g. active listening and the capability of orienting, improved well-being and self-esteem, social inclusion and active aging attitude. Moreover, NEETs acquired entrepreneurial and socio-relational competences by benefiting from the full exploitation of mentors’ know-how and the trust relationship with them. Companies, trade unions, educational and voluntary organizations should cooperate to adopt intergenerational learning programs as good practices for older adults and NEETs’ lifelong learning promotion.  相似文献   
70.
When time-intensive longitudinal data are used to study daily-life dynamics of psychological constructs (e.g., well-being) within persons over time (e.g., by means of experience sampling methodology), the measurement model (MM)—indicating which constructs are measured by which items—can be affected by time- or situation-specific artifacts (e.g., response styles and altered item interpretation). If not captured, these changes might lead to invalid inferences about the constructs. Existing methodology can only test for a priori hypotheses on MM changes, which are often absent or incomplete. Therefore, we present the exploratory method “latent Markov factor analysis” (LMFA), wherein a latent Markov chain captures MM changes by clustering observations per subject into a few states. Specifically, each state gathers validly comparable observations, and state-specific factor analyses reveal what the MMs look like. LMFA performs well in recovering parameters under a wide range of simulated conditions, and its empirical value is illustrated with an example.  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