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   2216篇
  免费   39篇
  国内免费   16篇
教育   1521篇
科学研究   226篇
各国文化   32篇
体育   238篇
综合类   28篇
文化理论   23篇
信息传播   203篇
  2023年   9篇
  2022年   35篇
  2021年   34篇
  2020年   55篇
  2019年   86篇
  2018年   108篇
  2017年   102篇
  2016年   97篇
  2015年   58篇
  2014年   76篇
  2013年   302篇
  2012年   79篇
  2011年   74篇
  2010年   50篇
  2009年   56篇
  2008年   50篇
  2007年   67篇
  2006年   61篇
  2005年   60篇
  2004年   50篇
  2003年   97篇
  2002年   126篇
  2001年   118篇
  2000年   76篇
  1999年   28篇
  1998年   17篇
  1997年   20篇
  1996年   13篇
  1995年   18篇
  1994年   13篇
  1993年   17篇
  1992年   8篇
  1991年   17篇
  1990年   19篇
  1989年   10篇
  1988年   9篇
  1987年   12篇
  1986年   6篇
  1985年   13篇
  1984年   8篇
  1983年   5篇
  1982年   7篇
  1981年   6篇
  1978年   8篇
  1976年   5篇
  1974年   5篇
  1973年   7篇
  1969年   5篇
  1967年   6篇
  1859年   5篇
排序方式: 共有2271条查询结果,搜索用时 15 毫秒
991.
992.
高校学生工作队伍建设事关大学生思想政治教育的成效。本文从探析“没有任何借口”的核心理念入手,对学生工作队伍建设的现存问题进行了解剖,并提出了优化学生工作组织系统,健全学生工作制度,优化学生工作外部环境等相应对策。  相似文献   
993.
The evolving technological landscape in the digital era has a crucial influence on lifelong learning and the demand for problem-solving skills. In this paper, we identify associations between formal, non-formal and informal learning with sufficient problem-solving skills in technology-rich environments (TRE). We focus on adults' problem-solving skills in TRE as a novel approach to investigate formal, non-formal and informal learning based on data from the Programme for the International Assessment of Adult Competencies. This programme measured 16–64-year-old adults' proficiency in problem-solving skills in TRE. The total sample size was 61 654 individuals from 13 European countries. Our results clearly indicate that the skill levels of more than 50% of adults aged 16–64 years old seem to be insufficient to cope effectively in TRE. The findings suggest that the learning ecologies of adults are a combination of formal, non-formal and informal learning activities. The overall level of problem-solving skills in TRE was higher among individuals who indicated that they have participated either formal or non-formal learning activities, compared to those who have not. However, interestingly, the association between formal learning and problem-solving skills in TRE was not major. Instead, our results clearly indicate that informal learning seems to be highly associated with sufficient problem-solving skills in TRE. In practice, we outline those formal, non-formal and informal learning activities that adults perform when applying the skills in TRE. By recognising these activities undertaken by sufficient problem solvers, we can promote lifelong learning skills. Our findings can also be used as a starting point for future studies on lifelong learning.  相似文献   
994.
Computer simulations provide environments enabling exploratory learning. Research has shown that these types of learning environments are promising applications of computer assisted learning but also that they introduce complex learning settings, involving a large number of learning processes. This article reports on an instrument for supporting one of these learning processes: stating hypotheses.The resulting instrument, an hypothesis scratchpad, was designed on the basis of a conceptual representation of the simulation model and tested in an experimental study. In this study three versions of the scratchpad, varying in structure, were compared. It was found that support offered for identifying variables, in the form of a selection list, is relatively successful: students who used this list were better in differentiating different types of variables. For identifying relations, a selection list of relations offered to the students proved unhelpful in finding accurate relations: students using this list stated their hypotheses mainly at a very global level.The research reported was conducted in the project SIMULATE. SIMULATE was part of SAFE, a R&D project partially funded by the CEC under contract D1014 within the Exploratory Action of the DELTA programme. The work of SIMULATE is continued in the DELTA main phase project SMISLE.  相似文献   
995.
Little is known about the early educational performance of children in migrant farmworker families. The authors examined the school readiness and early school success of 289 four-year-old preschool children of migrant families attending Redlands Christian Migrant Association centers. Children's school readiness was assessed and public school records were used for longitudinal follow-up. Children improved on age-4 school readiness domains, and although some struggled with emergent English literacy, many performed well on school readiness measures and later coursework. Children quickly became proficient in oral English, and had above-average school attendance. Many scored low on high-stakes tests; however, typically well enough for grade promotion. Students in the sample were comparable to similar students in poverty. School teachers and administrators should have high expectations for students from migrant families because many of them do stay in the public school system, and appear to be quite resilient despite many challenges they face.  相似文献   
996.
Purpose: The aim of the paper is to evaluate how advisory services stimulate the adoption of rural development policies (RDP) aiming at value creation.

Design/methodology/approach: By linking the use of agricultural extension services (AES) to policies for value creation, we will put forward an empirical analysis in Italy, with the aim of evaluating the capability of AES in bringing about higher access to rural policies for value creation in geographical indications (GI) contexts.

Findings: Results of our analyses evidence, on the one side, higher capability of funds attraction in GI areas. On the other side, path dependency schemes in accessing RDP are evident. Higher rates of access with the support of advisory services emerge, but only in traditional measure to fund farms’ investments. On the contrary, the use of AES does not facilitate access to other measures for value creation.

Practical implications: Our hypothesis is that AES include the support towards farm strategies of development through the adoption of RDP aiming at value creation in GI areas. Our analysis presents practical implications, in terms of a clear need for upgrading and broadening AES’ competencies in the field of projecting farm development and knowledge transfer in the field of funds to be obtained by RDP.

Theoretical implications: From a theoretical point of view, the paper may provide a contribution to theoretical debate by offering new insights into the role of advisory services in stimulating innovations and access to support policies.

Originality/value: This paper tries to fill a gap in the agricultural extension literature. We posit that the role of AES should comprehend a deeper knowledge (and knowledge transfer) concerning the opportunities provided by RDP.  相似文献   

997.
In a pilot study two Dutch secondary schools have been investigated with respect to four characteristics of school counselling as perceived by the school counsellors and students: (1) What counselling in the school should or should not be; (2) What are the reasons for starting a counselling activity; (3) What are the outcomes of school counselling; and (4) What are the necessities for school counselling.As a total group both males and females disagree with students on the practice of counselling within the context of the school, while both groups agree with students on the person oriented aims of counselling. Males and females perceive different reasons why counselling in the school is necessary and they perceive different kinds of outcomes. Female counsellors perceive markedly less reasons for counselling in school achievements of students than males, while they report more reasons for counselling than males where the prevention of conflicts between students in the classroom are concerned. Apart from discrepancies between male and female school counsellors, the students perceive more counselling outcomes than both groups of counsellors in terms of coping behaviour and conflict management. Students and counsellors disagree on several necessities for counselling, such as the amount of commitment required for counselling duties and the prerequisites of cooperation and support between counsellors.Paper presented at the XIIth International Round Table for the Advancement of Counselling, 22–26 June 1986, University of Lund, Lund, Sweden  相似文献   
998.
Abstract

In this study, we present a case study involving two self-service dashboards providing feedback on learning and study skills and on academic achievement. These dashboards were offered to first-year university students in several study programmes in Flanders, Belgium. Data for this study were collected using usage tracking (N?=?2875) and a survey taken at the beginning of the second year before (N?=?484) and after (N?=?538) the introduction of the dashboards. We found that early dashboard usage is related to academic achievement later in the academic year and that students’ review of the feedback received in the first year improved. Although these results are modest in comparison to how high the bar is sometimes set for learning analytics applications, we argue that low-cost deployments of self-service dashboards are an interesting approach to start building experience with similar tools and to start paving the way for future developments.  相似文献   
999.
1000.
在向量空间中引入了弱空间的概念 ,把维数公式定理推广到比子空间更广的一类弱空间上 ,揭示了弱空间、弱空间的弱和、弱空间的交在量 (维数 )上的关系。  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