全文获取类型
| 收费全文 | 8877篇 |
| 免费 | 77篇 |
| 国内免费 | 7篇 |
专业分类
| 教育 | 6066篇 |
| 科学研究 | 1185篇 |
| 各国文化 | 31篇 |
| 体育 | 537篇 |
| 综合类 | 15篇 |
| 文化理论 | 158篇 |
| 信息传播 | 969篇 |
出版年
| 2022年 | 36篇 |
| 2021年 | 41篇 |
| 2020年 | 68篇 |
| 2019年 | 108篇 |
| 2018年 | 818篇 |
| 2017年 | 868篇 |
| 2016年 | 629篇 |
| 2015年 | 163篇 |
| 2014年 | 178篇 |
| 2013年 | 919篇 |
| 2012年 | 234篇 |
| 2011年 | 457篇 |
| 2010年 | 436篇 |
| 2009年 | 255篇 |
| 2008年 | 322篇 |
| 2007年 | 449篇 |
| 2006年 | 98篇 |
| 2005年 | 186篇 |
| 2004年 | 241篇 |
| 2003年 | 170篇 |
| 2002年 | 103篇 |
| 2001年 | 109篇 |
| 2000年 | 123篇 |
| 1999年 | 112篇 |
| 1998年 | 73篇 |
| 1997年 | 67篇 |
| 1996年 | 69篇 |
| 1995年 | 40篇 |
| 1994年 | 46篇 |
| 1993年 | 32篇 |
| 1992年 | 65篇 |
| 1991年 | 74篇 |
| 1990年 | 73篇 |
| 1989年 | 69篇 |
| 1988年 | 61篇 |
| 1987年 | 47篇 |
| 1986年 | 64篇 |
| 1985年 | 75篇 |
| 1984年 | 63篇 |
| 1983年 | 44篇 |
| 1982年 | 55篇 |
| 1981年 | 38篇 |
| 1980年 | 32篇 |
| 1979年 | 57篇 |
| 1978年 | 53篇 |
| 1977年 | 40篇 |
| 1976年 | 33篇 |
| 1974年 | 33篇 |
| 1971年 | 32篇 |
| 1968年 | 30篇 |
排序方式： 共有8961条查询结果，搜索用时 265 毫秒
61.
I. I. Potapov 《Scientific and Technical Information Processing》2018,45(2):63-69
Modern global eco-dynamics problems are discussed. It is noted that global changes are mostly characterized by several key features, such as their multicomponent nature, as well as interactivity and nonlinearity. These features challenge various forecast estimates in such a way that the concept of forecasting has been replaced over the last few years by a much more ambiguous concept of scenarios. The vagueness of scenarios is due to the problem of global climate change. A global climate–nature–society system model is outlined. 相似文献
62.
I. V. Zibareva L. Yu. Ilina B. L. Alperin 《Scientific and Technical Information Processing》2018,45(2):106-109
The current state of the Russian Science Citation Index is analyzed. Several areas for its further development identified by long-standing active users, such as data searching, refinement, and storage; current user alerts; data input with the Science Index license; patent information; and the application programming interface (API) are investigated. 相似文献
63.
Textbook vetting and evaluation process intends to ensure that the materials provided are relevant, of the required quality, suitable ad would enhance learning efficiency and effectiveness. The paper investigates the role of publishers and Tanzania Institute of Education (TIE) in the textbooks vetting and evaluation process; examines factors used to vet, evaluate and approve primary and secondary school textbooks in Tanzania and proposes Strategies that would enhance the textbook vetting, evaluation and process. The study used a mixed method research design. Respondents were selected educational publishers; MoEVT, Baraza la Kiswahili Tanzania, TIE, and Publishers Association of Tanzania. Questionnaire and semi- structured interview were used to collect data which were analysed qualitatively and quantitatively. Major findings of the study were; textbooks vetting and evaluation process is not professionally conducted although standard criteria have been established; there is not well established roles among key players involved in the vetting and evaluation process leading to conflict of interest between TIE and the publishers. The study recommends establishing an independent professional evaluation board and a well-defined timetable and effective communication among various players; enacting a book policy and adopting a limited multiple-textbook publishing system. 相似文献
64.
65.
66.
The growth of archival studies programs has prompted archival scholars to establish an international network for supporting collaborative research, curriculum development, and pedagogy. Doctoral education is key to the sustainability of such programs and the continuation of the network over time. We carried out longitudinal research to survey the population of doctoral students attending one or more Archival Education and Research Institutes (AERI), an annual meeting first held in 2009. Building on prior research on graduate archival education, we gathered demographic and qualitative data about doctoral students specializing in archival studies who are based in several countries including the USA. We sought to assess attendee motivations, guide conference planning, and help advance overall AERI objectives. Our study provides a baseline understanding of the disciplinary backgrounds, research directions, and specific professional development activities that doctoral students in archival studies pursued around the globe from 2013 to 2015. This paper argues that doctoral education should continue to be a particular subject of archival research and indicates how archival students’ range of academic interests is diversifying and strengthening the scholarly community. 相似文献
67.
Against the backdrop of Spain’s Transparency Act, this article discusses the presence or otherwise of a series of document types, proposed as management-related transparency indicators, on 61 (8 national and 53 provincial) historic archive websites. Although examples of good practice were identified, the information provided was found to be scant, in particular as regards lines of action, organisational objectives and yearly reports. The information most commonly provided on the websites included the collection classification chart, service use regulations and citizen charters. The inference drawn was that archives, so intently focused on their role in the application of the Act by the organisations they serve, neglect their own administrative obligations in respect of its provisions. The recommendation is that as government-funded and subsidised public service institutions, historic archives should exercise transparency by furnishing the information stipulated in the Act on their websites. 相似文献
68.
69.
70.
