全文获取类型
收费全文 | 1234篇 |
免费 | 6篇 |
国内免费 | 2篇 |
专业分类
教育 | 511篇 |
科学研究 | 580篇 |
各国文化 | 13篇 |
体育 | 48篇 |
文化理论 | 19篇 |
信息传播 | 71篇 |
出版年
2019年 | 13篇 |
2018年 | 17篇 |
2017年 | 12篇 |
2014年 | 14篇 |
2013年 | 226篇 |
2011年 | 13篇 |
2010年 | 10篇 |
2009年 | 13篇 |
2008年 | 13篇 |
2007年 | 8篇 |
2006年 | 10篇 |
2005年 | 18篇 |
2004年 | 18篇 |
2003年 | 12篇 |
2002年 | 8篇 |
2001年 | 10篇 |
2000年 | 10篇 |
1996年 | 12篇 |
1995年 | 10篇 |
1994年 | 9篇 |
1993年 | 15篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1983年 | 9篇 |
1981年 | 12篇 |
1980年 | 7篇 |
1978年 | 17篇 |
1977年 | 10篇 |
1975年 | 7篇 |
1948年 | 13篇 |
1944年 | 7篇 |
1930年 | 20篇 |
1929年 | 28篇 |
1928年 | 33篇 |
1927年 | 32篇 |
1926年 | 30篇 |
1925年 | 52篇 |
1924年 | 33篇 |
1923年 | 34篇 |
1922年 | 11篇 |
1921年 | 15篇 |
1920年 | 28篇 |
1919年 | 13篇 |
1918年 | 12篇 |
1915年 | 8篇 |
1871年 | 7篇 |
1870年 | 7篇 |
1868年 | 15篇 |
1867年 | 9篇 |
1865年 | 7篇 |
排序方式: 共有1242条查询结果,搜索用时 759 毫秒
131.
132.
Teresa Eckrich Sommer Terri J. Sabol P. Lindsay Chase-Lansdale Mario Small Henry Wilde Sean Brown 《Journal of research on educational effectiveness》2017,10(4):732-766
Improving children's attendance is a high priority for Head Start and other early childhood education programs serving low-income children. We conducted a randomized control trial in a major northern city to evaluate the impact of a low-cost intervention designed to promote parents' social capital as a potential influence on children's attendance in Head Start centers. The intervention assigned children to treatment group classrooms based on (a) neighborhood of residence (geography condition) or (b) the geography condition plus the opportunity for parents to form partnerships in support of their children's attendance, or to control group classrooms according to Head Start guidelines only. We did not find impacts on average attendance throughout the year. However, the intervention did lead to increased attendance during the winter when average center attendance was lowest. There were no impacts on fall or spring attendance. Follow-up exploratory analyses of focus groups with parents and staff suggested that parents' level of connection and trust, self-generated partnership strategies, and commitment to their children's education may be factors by which parents' social capital expands and children's attendance improves. 相似文献
133.
This paper describes the design, development and evaluation of an experimental two‐way video teletraining (VTT) system consisting of two classrooms equipped with audio and video equipment and linked by a land line to enable two‐way audio/video communication. A US Navy instructor delivered instruction in person to the originating classroom and electronically to the remote classroom. Findings were that student attitudes and performance on examinations were comparable in originating and remote classrooms. Students at the remote classroom were more likely to comment on deficiencies of the VTT system and were particularly sensitive to audio problems. Instructor acceptance of the VTT system was high. Cost analysis indicated that using the VTT system was more costly than sending an instructor to a remote site but that VTT can be less cosdy than sending students to the instructor.
The research described was performed under the sponsorship of the Office of Naval Technology. The opinions expressed in this paper are those of the authors, are not official, and do not necessarily reflect the views of the Navy department. 相似文献
134.
135.
136.
Henry Spencer 《The Information Society》1997,13(2):163-170
We are heading into an era of uncontrolled and uncontrollable information flow. In the past, the tools of information flow required large investments, and the persons controlling them were easily identifiable. Now, effective long-range communication with large numbers of people can be done using tools that are easily affordable to the average citizen. Moreover, it can be done in ways that make monitoring and control virtually impossible. This is not a worrisome future change that can be averted by prompt action; it is a fait accompli and there is no reversing it. However, this is not necessarily clear to those interested in monitoring and control. Unfortunately, the bulk of electronic communication is still relatively exposed to monitoring and control, and is likely to remain so for a while. The danger is that the authorities, trying to retain a grip on a situation that is irretrievably slipping away, will react to the extremes of the problem in ways that leave ordinary users' privacy unprotected. The best approach is to adapt traditional solutions rather than inventing new ones. The safeguards built into the traditional solutions may not be precisely appropriate, but they are far better than nothing. 相似文献
137.
The Internet and its World Wide Web (Web) have an important role to play in the economic development of China. The government of the People's Republic of China has declared its intention to open opportunities for foreign trade and investment in China. Part of the commitment is a commitment to rule of law. Rule of law acceptable to commercial interests requires transparency and decisional rationality. These two features can be realized most quickly by connecting legal institutions through the Internet's Web to bodies of international commercial law, thus creating a virtual library for Chinese legal decision makers, and using the Web as a quick and cheap electronic “printing press” for Chinese legal decision makers. As a result, their statutes, rules, and decisional law become available to commercial interests. But technology is not enough. Innovative cross-cultural exchange programs aimed at the legal, managerial, and Web-master professions will round out this rule of law support for commercial globalization. 相似文献
138.
Henry A. Giroux 《Educational theory》1999,49(1):1-19
139.
This study explored the hypothesis that preschoolers’ deductive reasoning would be improved by encouraging use of divergent thinking (DT). Children of 4–5 years of age (n = 120) were randomly given DT or neutral control exercises before deductive reasoning problems. To allow a stronger test of the hypothesis, half of the children receiving the DT exercises were given explicit examples, which have been shown to reduce ideational originality. Results indicate that, as predicted, DT exercises without examples significantly improved rates of deductive responding, compared to exercises with examples and the control condition. These findings indicate that DT is a key component in the early beginnings of deductive reasoning. Some educational implications are discussed. 相似文献
140.