全文获取类型
收费全文 | 2854篇 |
免费 | 41篇 |
国内免费 | 5篇 |
专业分类
教育 | 2106篇 |
科学研究 | 182篇 |
各国文化 | 36篇 |
体育 | 309篇 |
综合类 | 6篇 |
文化理论 | 64篇 |
信息传播 | 197篇 |
出版年
2023年 | 24篇 |
2022年 | 60篇 |
2021年 | 83篇 |
2020年 | 120篇 |
2019年 | 171篇 |
2018年 | 210篇 |
2017年 | 206篇 |
2016年 | 184篇 |
2015年 | 128篇 |
2014年 | 143篇 |
2013年 | 618篇 |
2012年 | 164篇 |
2011年 | 100篇 |
2010年 | 80篇 |
2009年 | 75篇 |
2008年 | 70篇 |
2007年 | 56篇 |
2006年 | 45篇 |
2005年 | 43篇 |
2004年 | 41篇 |
2003年 | 27篇 |
2002年 | 42篇 |
2001年 | 20篇 |
2000年 | 19篇 |
1999年 | 11篇 |
1998年 | 15篇 |
1997年 | 9篇 |
1996年 | 16篇 |
1995年 | 8篇 |
1994年 | 9篇 |
1993年 | 7篇 |
1992年 | 10篇 |
1991年 | 8篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1981年 | 3篇 |
1980年 | 6篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1973年 | 2篇 |
1963年 | 2篇 |
1960年 | 2篇 |
排序方式: 共有2900条查询结果,搜索用时 0 毫秒
131.
Leonardo Madariaga Miguel Nussbaum Faustino Marañón Cristóbal Alarcón María Alicia Naranjo 《Government Information Quarterly》2019,36(2):179-195
People still use documents in many everyday government processes. From tax payments to passport requests, citizens have to interact with low-interactivity information artifacts such as reports, maps and datasets, among many others. Despite efforts to improve information delivery in the public sector, effective information usage remains a critical topic of action and research. The user experience of government documents has rarely been assessed, despite them being regularly published and frequently used. Considering this, the two following research questions arise: 1) How can government documents be classified (or grouped) in terms of user experience? 2) How can the user experience of government documents be monitored over time in order to inform design decisions? Working with a public agency in Chile, we develop and test a classification and monitoring framework based on two online surveys (N?=?338 and N?=?298). We then propose a framework for understanding user experience of government documents in these three dimensions: interaction goal, volume of information and ease of understanding. Using a graphical representation to classify user experience provides greater visibility of the current status of information produced by a public organization. Furthermore, by monitoring the user experience of a government document at different times, organizations can understand the effect of their design decisions and improve their service quality by implementing user-centered processes. 相似文献
132.
Finding an appropriate temporary storage location for books and providing access to them is a significant challenge for libraries undergoing renovations. The current article describes the use of a document management company by an academic library to store 430,000 books for 8 months and provide a retrieval-on-demand service. Aspects covered include the selection of a commercial storage provider with its own retrieval service; details of the move to and from offsite storage; the integration of the service with library processes; communications and user feedback; book usage during the storage period; overall costs; and lessons learned from the experience. 相似文献
133.
Méndez A Pérez C Montañéz JC Martínez G Aguilar CN 《Journal of Zhejiang University. Science. B》2011,12(12):961-968
The combined effects of pH and temperature on red pigment production and fungal morphology were evaluated in a submerged culture
of Penicillium purpurogenum GH2, using Czapek-Dox media with d-xylose as a carbon source. An experimental design with a factorial fix was used: three pH values (5, 7, and 9) and two temperature
levels (24 and 34 °C) were evaluated. The highest production of red pigment (2.46 g/L) was reached with a pH value of 5 and
a temperature of 24 °C. Biomass and red pigment production were not directly associated. This study demonstrates that P. purpurogenum GH2 produces a pigment of potential interest to the food industry. It also shows the feasibility of producing and obtaining
natural water-soluble pigments for potential use in food industries. A strong combined effect (p<0.05) of pH and temperature was associated with maximal red pigment production (2.46 g/L). 相似文献
134.
本文主要考察了六个编订于不同时期的对外汉语教学和测试的语法大纲,通过比较分析,本文认为从20世纪90年代至今,对外汉语教学和测试的理念不断变化与发展,理论语法色彩逐渐减弱,显性知识的教学和考查不断减少,同时,教学和测试理念正在由标准规范观向沟通理解观转化。这些变化反映出对外汉语教学和测试理念的发展趋势,适应了汉语国际推广的新形势。 相似文献
135.
136.
137.
138.
139.
Gerardo Blanco Ramírez 《Assessment & Evaluation in Higher Education》2015,40(7):943-957
This article reports on findings from a sociolinguistic qualitative study exploring inter-discursive relations manifested in the approaches and strategies that regional accrediting agencies in the United States utilise when recognising foreign universities. Even as most countries have developed national quality assurance systems and whilst international rankings comparing institutions globally are available, a growing number of universities around the world seek recognition from American regional agencies. By comparing policy statements, manuals, guidelines and other documents, and after interviewing top-level officers at US accrediting agencies, this study makes explicit the assumptions and central discourses associated with US accreditation of non-US institutions of higher education, from the accreditors’ perspective. Following constant comparison and cultural critical discourse analysis, the study reveals concerns about the equivalency of quality, emphasis on capacity building and reluctance toward adapting US standards. An interest in building international partnerships, in order to respond to globalisation, is also identified. 相似文献
140.
Seven hundred and sixty-eight adolescents from five countries and regions (USA, Spain, Hong Kong, Qatar, and Malaysia), aged 13–19 (M?=?15.78; SD?=?1.28) years, responded to a questionnaire designed to determine who was their most admired famous adult or hero. Male heroes clearly outnumbered admired females (73.3% vs. 26.7%). There was a pattern of same-sex choices, but it was more likely for girls to choose male heroes than for boys to choose females. Over half of the admired adults were athletes, and movie, television, and music stars. Regarding the personally known adults, there was a more balanced choice of males and females, with parents as the most frequent choice. Results suggest that society continues to fail in providing an adequate supply of female role models. 相似文献