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   4491篇
  免费   228篇
  国内免费   37篇
教育   2651篇
科学研究   1188篇
各国文化   2篇
体育   185篇
综合类   176篇
文化理论   2篇
信息传播   552篇
  2024年   2篇
  2023年   33篇
  2022年   69篇
  2021年   107篇
  2020年   136篇
  2019年   116篇
  2018年   91篇
  2017年   128篇
  2016年   184篇
  2015年   171篇
  2014年   274篇
  2013年   518篇
  2012年   405篇
  2011年   404篇
  2010年   274篇
  2009年   205篇
  2008年   219篇
  2007年   260篇
  2006年   286篇
  2005年   234篇
  2004年   181篇
  2003年   169篇
  2002年   107篇
  2001年   86篇
  2000年   42篇
  1999年   15篇
  1998年   9篇
  1997年   8篇
  1996年   5篇
  1995年   2篇
  1994年   2篇
  1993年   4篇
  1992年   5篇
  1991年   2篇
  1990年   3篇
排序方式: 共有4756条查询结果,搜索用时 203 毫秒
51.
在科学技术飞速发展、人类社会向知识经济时代迈进的今天,科技安全在国家安全体系中的地位越来越重要,科技安全水平已经成为衡量一个国家综合安全水平的重要标志。系统研究了国家科技安全战略管理的有关理论问题,包括国家科技安全战略、科技安全规划与计划、科技安全政策与法规、科技安全战略实施与评估等。  相似文献   
52.
安庆山川秀美,地处皖鄂赣三省交界处,是中国历史文化名城,国际资本和产业转移的理想之地,担当着实现安徽在中部崛起的重任,面临发展开放经济的难得机遇。安庆发展开放型经济,要创新体制发挥后发优势,锻造工业化脊梁,加快东向发展的步伐,提升招商引资水平。  相似文献   
53.
Families with complex needs related to domestic violence, mental health, and substance use have some of the worst child protective services (CPS) outcomes. Although many of these families are identified during a CPS investigation and subsequently referred to home-based postinvestigation services (HBPS), many are re-reported to CPS, so it is important to understand the postinvestigation experiences of this vulnerable group. Therefore, this study compared families with and without complex needs to understand their uniquedemographics, needs, and postinvestigation outcomes.The sample consisted of 2008 caregivers who received HBPS following an initial CPS investigation. The Family Assessment Form (FAF) was used to measure family functioning in eight domains using a 1–5 scale with higher ratings representing worse functioning. Complex needs were indicated by a mean FAF score of 3 or higher for either domestic violence, mental health, or substance use. Using Pearson chi-square analyses and two-sample t-tests, comparisons were made between families with (n = 836) and without (n = 1172) complex needs. Half of caregivers with complex needs had a history of abuse, 25% had three to five needs, and nearly half had six to eight needs; 90% of caregivers without complex needs had zero to two needs. Furthermore, caregivers with complex needs had higher mean scores for concrete, educational, and clinical needs. These findings highlight the importance of recognizing variation among families referred to HBPS and accurate screening to ensure that families with complex needs are offered and receive services matched to their unique characteristics and needs.  相似文献   
54.
Basic social interaction and executing certain tasks can be difficult for children with autism spectrum disorder (ASD). The symptoms of such behaviour include inappropriate gestures, body language and facial expressions, lack of interest in certain tasks, cognitive disability in coordination of limbs, and a difficulty in comprehending tasks’ requirements. This paper will discuss our efforts to develop virtual learning environments for children with ASD to improve their gestures and their interests in comprehending tasks’ requirements. Virtual environments are ideal for imparting skills necessary for independence before encouraging children with ASD to try these out in the real world and gain real-life experience. A high-end solution and a simplified solution will be presented together with a discussion on their comparison study.  相似文献   
55.
Universities, and higher education institutions in general, are ever more influenced by output-driven performance indicators and models that originally stem from the profit-organisational context. As a result, universities are increasingly considering management tools that support them in the (decision) process for attaining their strategic goals. The growth-share matrix is one of these tools that has proven its value in diverse business and competitive contexts in the past few decades. The present study’s contribution is twofold. First, we apply and interpret the growth-share matrix as part of a strategic positioning analysis in a strategic university context. Second, we extend this tool by incorporating social inclusion as a third dimension in the analysis. In recent years, discussions on the rising social disparity among adolescents in higher education have increased and different types of actors have raised the motivation to create more equal opportunities for prospective students who rank among the group of socially disadvantaged adolescents. The findings of an empirical case of the proposed model for a particular Belgian academic programme show that increased social inclusion and higher performance parameters, such as growth in student enrolments and diplomas, can be reached simultaneously.  相似文献   
56.
This study examined the role of instruction for spelling performance and spelling consciousness in the Dutch language. Spelling consciousness is the ability to reflect on one's spelling and correct errors. A sample of 115 third-grade spellers was assigned to a strategy-instruction, strategic-monitoring, self-monitoring, or control condition representing different types of metacognitive aspects. The results showed that students in all three training conditions made more progress in both spelling performance and spelling consciousness than students in the control condition. With respect to spelling consciousness, only students in the strategy-instruction condition made significant improvement between pretest and posttest. Students made more progress in spelling performance on regular words than on loan words. Students in all four conditions became more accurate at assessing which words they could spell correctly. Students in the control condition more frequently overestimated their spelling ability.  相似文献   
57.
Metaphors are devices that people employ for both poetic purposes and rhetorical elaboration and belong to the realm of extraordinary language. Metaphors are used to connect abstract ideas and information to more concrete experiences, thus making these experiences more familiar and easier to understand. Moreover, metaphors are more than symbolic intellectual processes; they influence the conceptual understanding of our experiences and help define our everyday realities. For education, there is an important and relevant practical connection between the metaphors that teachers employ and their beliefs about teaching and classroom practices. This stems from the notion that metaphors guide one’s mental framework. In order to gain a deeper understanding of the metaphors influencing teachers in gifted education, this study specifically asked teachers to describe both their metaphors concerning gifted students as well as those influencing their teaching. In this study, nine different themes were identified. This research demonstrates a clear connection between reported metaphors and how gifted students receive their education from teachers. Participants’ answers demonstrate a strong connection between their metaphors and their classroom practices. However, strict adherence to one’s root metaphor increases the chance for dogmatism in the classroom and can lead to potentially incoherent classroom differentiation and a potential disconnect between classroom practices and the actual pedagogical needs of the gifted learner.  相似文献   
58.
高校财务价值工程是高校财务管理的核心部分,高校所有财务管理活动都可以用财务价值工程来加以概括、反映和控制,将价值工程的思想引入财务管理之中是十分有益的,是高校财务战略体系中的重要环节。运用财务价值工程管理从而提高高校财务创新能力,进而提高学校整体竞争力。  相似文献   
59.
在全球化浪潮的影响下,中东各国纷纷走上经济合作之路,将经济现代化和全球化融为一体,经济合作和地区经济一体化成为中东各国新的形势下发展经济的一致目标。目前,中东的一体化经济尚处于低级的特惠贸易区、工业品自由贸易区和关税同盟阶段,还没有完全形成以市场为导向的经济。政府政策和国际因素对其影响较大,各国缺乏独立发展区域经济一体化的自主性。由于中东特殊的地缘经济、地缘政治和国际关系,根据目前有关中东地区经济发展“快速一体化”、“渐进一体化”、“双边一体化”的三种战略构想,中东应当根据具体的时期、具体的形势和具体的国情运用灵活的发展战略。  相似文献   
60.
近年来, 伴随着我国经济的飞速发展, 能源的需求量及供需缺口逐年增大, 能源的供应压力凸现,保障形势日益严峻。同时, 长期以煤为主的能源生产与消费给环境造成了巨大的破坏。结合当前的国际能源形势, 分析我国能源安全的现状及面临的问题, 提出战略应对措施。  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