全文获取类型
收费全文 | 949篇 |
免费 | 25篇 |
专业分类
教育 | 696篇 |
科学研究 | 25篇 |
各国文化 | 13篇 |
体育 | 61篇 |
文化理论 | 13篇 |
信息传播 | 166篇 |
出版年
2022年 | 7篇 |
2021年 | 4篇 |
2020年 | 9篇 |
2019年 | 14篇 |
2018年 | 26篇 |
2017年 | 42篇 |
2016年 | 32篇 |
2015年 | 19篇 |
2014年 | 39篇 |
2013年 | 448篇 |
2012年 | 11篇 |
2011年 | 13篇 |
2010年 | 5篇 |
2009年 | 15篇 |
2008年 | 24篇 |
2007年 | 11篇 |
2006年 | 4篇 |
2005年 | 5篇 |
2004年 | 10篇 |
2003年 | 3篇 |
2002年 | 4篇 |
2001年 | 4篇 |
2000年 | 3篇 |
1999年 | 10篇 |
1998年 | 10篇 |
1997年 | 10篇 |
1996年 | 9篇 |
1995年 | 8篇 |
1994年 | 5篇 |
1993年 | 10篇 |
1991年 | 9篇 |
1990年 | 9篇 |
1989年 | 5篇 |
1988年 | 11篇 |
1987年 | 11篇 |
1986年 | 6篇 |
1985年 | 7篇 |
1984年 | 9篇 |
1983年 | 3篇 |
1982年 | 14篇 |
1981年 | 8篇 |
1980年 | 4篇 |
1979年 | 4篇 |
1978年 | 6篇 |
1977年 | 6篇 |
1976年 | 5篇 |
1975年 | 10篇 |
1974年 | 7篇 |
1973年 | 4篇 |
1969年 | 3篇 |
排序方式: 共有974条查询结果,搜索用时 0 毫秒
41.
42.
43.
44.
Access to government information in electronic form is essential to the realization of a civil society, democratization, and a rule of law. Freedom of information issues are centrally important in countries around the world, and the Internet's World Wide Web offers the potential to provide freedom of information at low cost. Achieving a sound information policy to promote open government requires constant vigilance by those who care about the goal. The greatest threat is state sponsored monopoly. State sponsored monopolies are inimical to open government and rule of law because they open the possibility of censorship, because they raise prices and increase cost, and because they deprive the public of new technology developments. Agencies should never seek to restrict redissemination or to prescribe prices at which information may be distributed to redisseminated. Copyright law may be interpreted to exclude the possibility of copyright in basic public information. Finally, the proposed database protection treaty now pending before the World Intellectual Property Organization should be opposed, unless drafters add a compulsory license provision to mandate multiple sources and channels for public information locked up by intellectual property and database rights. 相似文献
45.
46.
47.
48.
Silvia Huaynoca Venkatraman Chandra-Mouli Nuhu Yaqub Jr. Donna Marie Denno 《Sex education》2014,14(2):191-209
Nigeria is one of few countries that reports having translated national policies on school-based comprehensive sexuality education (CSE) into near-nationwide implementation. We analysed data using the World Health Organization-ExpandNet framework, which provides a systematic structure for planning and managing the scaling up of health innovations. We examined how Nigeria's nationwide programme was designed and executed. Since 2002, Nigeria has developed a well thought through strategy to scale up CSE. Crucial attributes that facilitated the scaling up included technical consensus about the innovation and clarity about its components, dissection of a complex intervention into manageable components for implementation by organisations with complementary expertise, strong political leadership and championship in concert with advocacy and technical support from non-governmental organisations, proactive and energetic involvement of community stakeholders, effective programme management, and improvements to the information management system to ensure on-track implementation and mid-course corrections to keep stakeholders, including funders, informed and engaged. Challenges included programmatic values, competing priorities for available human resources and a lack of predictable funding for sustaining a rapid scale-up effort. Despite some weaknesses, implementation has largely proceeded according to plan. The lessons learned from Nigeria's experience can and should be used in other settings to achieve wide-scale coverage. 相似文献
49.
50.