全文获取类型
收费全文 | 100290篇 |
免费 | 2056篇 |
国内免费 | 2717篇 |
专业分类
教育 | 52086篇 |
科学研究 | 24185篇 |
各国文化 | 165篇 |
体育 | 4175篇 |
综合类 | 4490篇 |
文化理论 | 64篇 |
信息传播 | 19898篇 |
出版年
2024年 | 15篇 |
2023年 | 283篇 |
2022年 | 1066篇 |
2021年 | 1927篇 |
2020年 | 2257篇 |
2019年 | 1915篇 |
2018年 | 1319篇 |
2017年 | 1432篇 |
2016年 | 1754篇 |
2015年 | 2631篇 |
2014年 | 6067篇 |
2013年 | 7279篇 |
2012年 | 8483篇 |
2011年 | 8885篇 |
2010年 | 6172篇 |
2009年 | 5820篇 |
2008年 | 6631篇 |
2007年 | 7672篇 |
2006年 | 7896篇 |
2005年 | 6611篇 |
2004年 | 5290篇 |
2003年 | 4346篇 |
2002年 | 3331篇 |
2001年 | 2450篇 |
2000年 | 1428篇 |
1999年 | 615篇 |
1998年 | 394篇 |
1997年 | 296篇 |
1996年 | 165篇 |
1995年 | 118篇 |
1994年 | 118篇 |
1993年 | 95篇 |
1992年 | 108篇 |
1991年 | 58篇 |
1990年 | 27篇 |
1989年 | 29篇 |
1988年 | 5篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 6篇 |
1984年 | 7篇 |
1983年 | 5篇 |
1982年 | 5篇 |
1981年 | 4篇 |
1980年 | 3篇 |
1979年 | 6篇 |
1978年 | 6篇 |
1977年 | 2篇 |
1957年 | 28篇 |
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
1.
运用文献资料法对"健康中国2030"背景下全民健身与全民健康深度融合发展的基本态势进行梳理,剖析深度融合的薄弱环节及解决路径。全民健身与全民健康进行深度融合的发展趋势及态势集中体现在习近平总书记关于全民健身以及全民健康的一系列重要讲话、国家政策支撑、发展成果、成果转化与应用四个方面。深度融合存在协同体制机制障碍、法律法规缺失或不完善、供需矛盾协调障碍、交叉领域专业人才不足等薄弱环节。研究建议:需从部门融合和联合设置工作小组、部门和地方政策法规融合及保持延续性、资源融合与供需两端改革、专业融合和人才融合等四条路径进行改革,全方位推进全民健身与全民健康的深度融合发展。 相似文献
2.
According to the goal orientation model, students’ achievement goals and beliefs are interrelated. Within this framework, research and theory have so far assumed that achievement goals are associated with students’ beliefs of causes of success, the latter representing students’ subjective beliefs about the factors contributing to success at school. So far, this line of research has been restricted to a few cross-sectional studies. We examined the temporal relations between achievement goals (mastery, performance-approach, and performance-avoidance goals) and students’ beliefs of causes of success, the latter operationalized by asking the students to rate the subjective importance of diligence, effort, and ability for school success. Achievement goals and beliefs of causes of success were measured twice with a time lag of one school year with a sample of N = 2044 German secondary school students. Cross-lagged panel models were estimated to examine the temporal relations between achievement goals and beliefs of causes of success while controlling for students’ secondary school track, socio-economic status, and Grade Point Average. Former mastery goals were found to be positively related to later importance ratings of diligence for school success; former performance-approach goals were found to be positively related to later importance ratings of ability. Boys and girls were found to display similar relations among constructs but they showed differential mean levels on both the achievement goal constructs and the beliefs of causes of success. Implications for research on achievement goals and practice using intervention approaches are discussed. 相似文献
3.
Although Affirmative Action policies have been enforced in many countries, their consequences are highly understudied, especially in the context of developing economies. Section 12(1)(c) of the Right to Education (RTE) Act enforced in 2009 is the first attempt to introduce affirmative action in primary schools in India. The act requires all private schools to reserve at least twenty five percent seats for children from economically weaker sections. To understand the effect of the act on i) social integration and ii) academic outcomes, we asked 1500 children (grades one to three) from four schools to answer friendship surveys and short tests in Mathematics and English. The schools in our sample vary considerably in constitution and were intentionally chosen to understand the impact of the act in different school settings. The friendship surveys show strong homophily i.e. non-RTE students cite other non-RTE students as friends, while RTE students chose to be friends primarily with other RTE students. Trends in test scores reveal that students admitted under the RTE quota score significantly lower than non-RTE students. However, RTE students who have a higher share of non-RTE friends have better test scores, suggesting that affirmative action may have a positive influence on learning outcomes for RTE children. Further we note that commitment from the school authorities and systematic monitoring and evaluation of the implementation of the act will go a long way in bringing out some of the benefits that this act was designed to achieve. Our findings have important policy implications with respect to ensuring proper implementation of the Section12(1)(c) of the RTE act in schools across the country. 相似文献
4.
5.
Julio Guerra Margarita Ortiz-Rojas Miguel Angel Zúñiga-Prieto Eliana Scheihing Alberto Jiménez Tom Broos Tinne De Laet Katrien Verbert 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(4):973-1001
Despite the success of academic advising dashboards in several higher educational institutions (HEI), these dashboards are still under-explored in Latin American HEI's. To close this gap, three different Latin American universities adapted an existing advising dashboard, originally deployed at the KU Leuven to their own context. In all three cases, the context was the main ruling factor to these adaptations. In this paper, we describe these adaptions using a framework that focuses on four different elements of the context: Objectives, Stakeholders, Key moment and Interactions. Evaluation of the adapted dashboards in the three different Latin American universities is conducted through pilots. This evaluation shows the value of the dashboard approach in different contexts in terms of satisfaction, usefulness and impact in academic decision-making and advising tasks. The main contribution of this paper is the systematic reporting of the adaptations to an academic advising dashboard and showing the value of an academic advising dashboard on academic decision-making and advising tasks. 相似文献
6.
[目的/意义] 灰色预测法可有效处理情报研究中广泛存在的小样本数据,通过对灰色预测法在情报研究中的应用情况进行梳理,总结其在应用过程中存在的不足,为灰色预测法在情报研究中的进一步应用提供参考。[方法/过程] 通过综述情报研究中涉及灰色预测法的相关文献,从数据选取、模型构建和解决的问题等方面对情报研究中灰色预测法的应用进行概述,总结当前情报研究中灰色预测法的应用所存在的问题,并提出改进建议。[结果/结论] 在方法应用上,已有研究主要采用数列灰预测,且模型集中在单变量灰色预测模型,根据预测对象不同,灰色预测法已经在包括期刊分析、图书馆运行管理、热点主题分析及科研机构评价方面得到了很好的应用,未来可根据预测对象特点及研究目标尝试不同的灰色预测方法,扩宽灰色预测法在其他方面的情报研究问题中的应用。 相似文献
7.
本文通过对S大学的研究,探讨高校第二课堂运行的有效性,并指出目前存在的问题,提供相应的解决办法。 相似文献
8.
The present study investigates the relationship between CEO’s information literacy and innovation in small and medium-sized enterprises (SMEs). Even if information literacy’s business value has been recognized in recent literature, its impact on organizational innovation, a critical and strongly information intensive process, has never been studied before. Structural equation modeling based analysis of data collected from 184 company CEOs in Finland revealed that CEOs’ information literacy has a positive impact on the development of exploratory and exploitative innovations in SMEs. Additionally, opportunity recognition mediates the relationship between information literacy and innovation. Overall, the influence of information literacy is slightly stronger on exploitation than exploration. Nevertheless, the mutual positive effect suggests that information literacy enhances innovation ambidexterity in organizations. Based on these findings, we discuss theoretical and practical implications as well as future research opportunities in workplace information literacy research. 相似文献
9.
Terese L. Chmielewski Justin Tatman Shuhei Suzuki MaryBeth Horodyski Darcy S. Reisman Russell M. Bauer James R. Clugston Daniel C. Herman 《运动与健康科学(英文)》2021,10(2):154
This review presents a conceptual framework and supporting evidence that links impaired motor control after sport-related concussion (SRC) to increased risk for musculoskeletal injury. Multiple studies have found that athletes who are post-SRC have higher risk for musculoskeletal injury compared to their counterparts. A small body of research suggests that impairments in motor control are associated with musculoskeletal injury risk. Motor control involves the perception and processing of sensory information and subsequent coordination of motor output within the central nervous system to perform a motor task. Motor control is inclusive of motor planning and motor learning. If sensory information is not accurately perceived or there is interference with sensory information processing and cognition, motor function will be altered, and an athlete may become vulnerable to injury during sport participation. Athletes with SRC show neuroanatomic and neurophysiological changes relevant to motor control even after meeting return to sport criteria, including a normal neurological examination, resolution of symptoms, and return to baseline function on traditional concussion testing. In conjunction, altered motor function is demonstrated after SRC in muscle activation and force production, movement patterns, balance/postural stability, and motor task performance, especially performance of a motor task paired with a cognitive task (i.e., dual-task condition). The clinical implications of this conceptual framework include a need to intentionally address motor control impairments after SRC to mitigate musculoskeletal injury risk and to monitor motor control as the athlete progresses through the return to sport continuum. 相似文献
10.
The frequent occurrence of security incidents in ride-sharing is a challenge for the survival of IT-enabled ride-sharing platforms. Passengers’ protective behavior is an effective means to alleviate this issue, with benefits to both the passengers and the platforms. This study explores the mechanisms of passengers’ protective behavior in the ride-sharing context by combining protection motivation theory (PMT) and usage situation theory. We test our hypotheses using data (n = 346) collected from a field survey based on a real scenario. The findings reveal that PMT and usage situation theory work well to explain passengers’ protective behavior during ride-sharing. This study explains the motivation behind passengers’ protective behavior in the ride-sharing context, extends the contents of PMT by exploring its antecedents, and extends the contents of usage situation theory by introducing a new dimension. Our findings can help ride-sharing platforms take appropriate strategies to improve passengers’ protective behavior. 相似文献