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   9590篇
  免费   374篇
  国内免费   172篇
教育   6778篇
科学研究   1932篇
各国文化   50篇
体育   400篇
综合类   378篇
文化理论   34篇
信息传播   564篇
  2024年   16篇
  2023年   68篇
  2022年   195篇
  2021年   236篇
  2020年   284篇
  2019年   326篇
  2018年   323篇
  2017年   304篇
  2016年   321篇
  2015年   340篇
  2014年   550篇
  2013年   938篇
  2012年   769篇
  2011年   739篇
  2010年   552篇
  2009年   461篇
  2008年   545篇
  2007年   620篇
  2006年   534篇
  2005年   475篇
  2004年   420篇
  2003年   368篇
  2002年   277篇
  2001年   206篇
  2000年   124篇
  1999年   43篇
  1998年   28篇
  1997年   24篇
  1996年   12篇
  1995年   6篇
  1994年   14篇
  1993年   7篇
  1992年   3篇
  1990年   1篇
  1989年   1篇
  1983年   1篇
  1982年   1篇
  1979年   1篇
  1977年   1篇
  1976年   2篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
澳大利亚国家图书馆展览政策研究   总被引:1,自引:0,他引:1  
李剑 《图书情报工作》2019,63(13):137-144
[目的/意义]国内图书馆对展览政策的研究较少,而国外图书馆在相关领域有比较成熟的做法。研究国外图书馆展览政策有助于促进国内图书馆展览工作的开展。[方法/过程]通过对澳大利亚国家图书馆展览政策与展品租借政策文本的梳理与研究,探索其有益做法对我国图书馆的启示。[结果/结论]我国图书馆应从4方面完善展览工作:①重视展览工作的组织建设;②重视对展览原则的研究;③结合国家文物保护政策制定展品借出政策;④结合我国实际制定展品借入政策。  相似文献   
32.
This paper studies the effect of the integration of students with Special Educational Needs (SEN) on the academic achievement of their peers without SEN. This achievement is measured using performance in standardized reading and mathematics tests. The study also evaluates the effect of a policy that recognizes and increases resources for special educational needs that had not yet been considered and improves education provision protocols for students with SEN. Using administrative data and standardized test scores, we constructed a panel that follows a cohort of students before and after the reform, determining for each individual and year whether the class to which he/she belongs has any students with SEN. Our identification strategy employs panel data with fixed effects at the school, individual, and time levels. Estimates show that, on average, having a peer with SEN in the classroom has a negative effect on the academic performance of students without SEN. However, these effects are small and decrease, or even vanish, once better inclusion policies are in place. These results suggest that the effect on peers is almost totally canceled when more resources are provided and when adequate treatment and support protocols are implemented.  相似文献   
33.
The world is adversely affected by the plethora of easily available fake and misleading information. Public schools are established to help generate responsible citizens.Public schools may have a role to play in addressing the fake news, fake truth problem.  相似文献   
34.
对近年来中国FDI数据与国侨办侨资企业数据库进行全面比较和深入研究发现,近年来的中国侨资企业发展大大超过外资成长:新批侨资企业数量连续大幅度增加且大大超过外资成长;新增侨资在全国FDI中的比重逐年提高;侨资企业平均投资额大增,并且在制造业中比重下降;新批侨资企业主要来源地分布较广,位次变化显著.这一转变根本的原因在于,大多数侨资企业在一二十年的中国经济高速快车上不断壮大,经营规模与产业层次得到提升,与世界企业的差距大大缩小,国际竞争力日益增强。这一重大转变在这次研究中首次被揭示,应引起有关部门的重视。政策取向必须随着新的形势变化应适时调整,高度重视侨资企业的发展。  相似文献   
35.
ABSTRACT

Due to budget constraints, schools in the United States have increasingly turned to community arts organizations for support. School-community arts partnership stakeholders collaborate because of shared missions to provide students with valuable arts learning experiences. Investigations of these initiatives indicate that these partnerships improve arts learning opportunities and increase public support and resources for arts education. However, not much is known about the experiences and perspectives of the arts organizations that participate in these partnerships. Coordinating collective efforts with a multitude of institutions and interests poses challenges. In this study, we examine survey data collected from arts organization administrators who participated in a large-scale school-community arts partnership initiative. We find that these organizations are generally positive about their impacts on students’ educational outcomes, but there is substantial variation in these views. We also find that organizations differ in their levels of support for these collective efforts. Sources of this variation appear to be attributable to organizations’ preexisting resources and extent to which they are established. While this difference in levels of support is potentially inevitable, we find evidence that the operations handled by the “backbone” organization, i.e. the initiative’s facilitators and overseers, can significantly influence organizations’ levels of support for these efforts. Organizations are more likely to support these collaborative efforts when they believe the backbone organization ensures transparency with initiative operations, provides regular, effective communication, and effectively resolves competing priorities.  相似文献   
36.
ABSTRACT

Introduction: Low energy availability (LEA) results in physiological adaptations, which can contribute to unfavourable health outcomes. Little information exists on risk of LEA in active individuals competing in different sports or levels of competition. The aims of this study were to (1) identify risk of LEA in females competing at different levels of competition and (2) investigate associations between risk of LEA, illness and dietary habits. Methods: The validated questionnaire, ‘Low Energy Availability in Females Questionnaire’ was distributed online (November 2016–February 2017) to assess risk of LEA. Twenty-nine additional questions collected information on demographics, illness history and dietary habits. Participants were considered at risk of LEA if they attained a score of?≥?8 and were grouped into: (i) international; (ii) provincial/inter-county; (iii) competitive; and (iv) recreationally active. Chi-square and logistic regression analyses were used to explore differences between those at risk or not at risk of LEA. Results: Risk of LEA was identified in 40% (n?=?331) of 833 participants and was 1.7 and 1.8 times more likely in international and provincial/inter-county athletes compared to those who were recreationally active (International: odds ratios (OR) 1.68, 95% confidence intervals (95%CI) 1.12–2.54; Provincial/inter-county: OR 1.83, 95%CI 1.20–2.77). In participants at risk of LEA, missing >22 days of training during the previous year due to illness occurred 3 times more frequently (OR 3.01, 95%CI 1.81–5.02). Conclusion: Risk of LEA was widespread in this heterogeneous sample. Awareness of LEA and the development of appropriate energy management strategies to ensure athlete health across levels of competition are required.  相似文献   
37.
38.
Abstract

Maternal dietary habits influence maternal and foetal health, representing a pathway for intervention to maximise pregnancy outcomes. Advice on energy intake is provided on a trimester basis, with no additional calories required in the first trimester and an additional 340?kcal?d?1 and 452?kcal?d?1 needed for the second and third trimesters. Energy intake depends on pre-gravid body mass index (BMI); underweight women are recommended an increase of 150, 200 and 300?kcal?d?1 during the first, second and third trimester, normal weight women an increase of 0, 350 and 500?kcal?d?1 and obese women an increase of 0, 450 and 350?kcal?day?1. The recommendations for carbohydrate and protein intake are 175?g?d?1 and 0.88–1.1?g?kgBM?d?1, with no change to fat intake. The number of pre-gravid obese women is rising; therefore, we need to regulate weight in women of childbearing age and limit gestational weight gain to within the recommended ranges [overweight women 6.8–11.3?kg and obese women 5.0–9.1?kg]. This can be achieved using nutritional interventions, as dietary changes have been shown to help with gestational weight management. As pregnancy has been identified as a risk factor for the development of obesity, normal weight women should gain 11.5–16.0?kg during pregnancy. While some research has shown that dietary interventions help to regulate gestational weight gain and promote postpartum weight loss to some extent, future research is needed to provide safe and effective guidelines to maximise these effects, while benefitting maternal and foetal health.  相似文献   
39.
ABSTRACT

In the British Isles, national policies for the arts are primarily viewed as the responsibility of arts councils with statutory duties to distribute state funding that meet the requirements of both “arms-length” principles and national strategic frameworks. This paper explores the tensions between policy making for the nation-state and for “the local” through comparative research on the arts councils (and equivalent bodies) in Scotland, England and Northern Ireland. Drawing on in-depth qualitative interviews with senior representatives from these organisations, it explores their notions of, responsibilities to and affiliations with “the local”. Findings suggest that despite their different models and relationships to the nation-state, and the disparities in the scale of investment, these national policy bodies commonly rely on networked governance to facilitate their relationship to “the local” which risks reproducing national interests, limiting the localised agency of place-based approaches and contributing to a culture of competition within cultural policy.  相似文献   
40.
This article draws together my thinking in relation to special educational needs and inclusion that have dominated my practice. The article, through the concept of embodiment, revisits, reviews and reframes the key issues of the construction of special educational needs, inclusion and the ideology that binds them together. Through this exploration, I argue we often seem to move forward with policy while in reality standing still in ensuring the ‘success’ of all of our pupils. By critiquing and reframing taken‐for‐granted assumptions and the sacred words ‘success’ and ‘achievement’, this article maps out the future directions of inclusive education. It concludes with a reflection on my first days as a ‘teacher of special educational needs’ and my work to support Kenny, a student with cerebral palsy. This personal reflection maps out a different form of educational success that perhaps could provide a forward momentum to develop more successful inclusive education policy and practice.  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