全文获取类型
收费全文 | 4688篇 |
免费 | 60篇 |
国内免费 | 11篇 |
专业分类
教育 | 3502篇 |
科学研究 | 248篇 |
各国文化 | 43篇 |
体育 | 413篇 |
综合类 | 4篇 |
文化理论 | 62篇 |
信息传播 | 487篇 |
出版年
2022年 | 28篇 |
2021年 | 47篇 |
2020年 | 64篇 |
2019年 | 116篇 |
2018年 | 147篇 |
2017年 | 155篇 |
2016年 | 150篇 |
2015年 | 102篇 |
2014年 | 118篇 |
2013年 | 970篇 |
2012年 | 133篇 |
2011年 | 133篇 |
2010年 | 150篇 |
2009年 | 137篇 |
2008年 | 150篇 |
2007年 | 147篇 |
2006年 | 113篇 |
2005年 | 98篇 |
2004年 | 101篇 |
2003年 | 82篇 |
2002年 | 99篇 |
2001年 | 69篇 |
2000年 | 107篇 |
1999年 | 75篇 |
1998年 | 74篇 |
1997年 | 66篇 |
1996年 | 75篇 |
1995年 | 58篇 |
1994年 | 68篇 |
1993年 | 64篇 |
1992年 | 51篇 |
1991年 | 73篇 |
1990年 | 51篇 |
1989年 | 50篇 |
1988年 | 38篇 |
1987年 | 45篇 |
1986年 | 45篇 |
1985年 | 44篇 |
1984年 | 48篇 |
1983年 | 39篇 |
1982年 | 31篇 |
1981年 | 35篇 |
1980年 | 30篇 |
1979年 | 27篇 |
1978年 | 32篇 |
1977年 | 39篇 |
1976年 | 27篇 |
1975年 | 23篇 |
1974年 | 23篇 |
1972年 | 15篇 |
排序方式: 共有4759条查询结果,搜索用时 15 毫秒
921.
922.
Peter Winsor 《Cultural Trends》1999,9(33):1-34
British conservation is respected around the world for its excellence, based on a tradition of caring for heritage material, backed up by high‐quality training and research. This paper charts the origins and development of the conservation profession in the United Kingdom and provides a comprehensive overview of the number, location and variety of conservation specialists currently working in the UK. It looks at those working in both the public and private sectors. The findings are based on a number of surveys conducted by the professional bodies and by government agencies such as the Museums & Galleries Commission (MGC). Most of the information relates only to museums, but the most recent survey of conservators by the MGC also looked at provision in libraries and archives. 相似文献
923.
Using data on the ‘career’ paths of one thousand ‘leading scientists’ from 1450 to 1900, what is conventionally called the
‘rise of modern science’ is mapped as a changing geography of scientific practice in urban networks. Four distinctive networks
of scientific practice are identified. A primate network centred on Padua and central and northern Italy in the sixteenth
century expands across the Alps to become a polycentric network in the seventeenth century, which in turn dissipates into
a weak polycentric network in the eighteenth century. The nineteenth century marks a huge change of scale as a primate network
centred on Berlin and dominated by German-speaking universities. These geographies are interpreted as core-producing processes
in Wallerstein’s modern world-system; the rise of modern scientific practice is central to the development of structures of
knowledge that relate to, but do not mirror, material changes in the system.
相似文献
David M. EvansEmail: |
924.
925.
926.
Peter J. Brady Cyril I. Figuerres Donald W. Felker Wayne M. Garrison 《Psychology in the schools》1978,15(3):434-438
Nineteen elementary teachers were observed for the frequency with which they modeled self-praise for their students and taught their students to praise and evaluate themselves. Measures of student self-concept, anxiety, and achievement responsibility were taken at the end of the year. It was found that teacher modeling of self-praise correlated negatively with boys' selfconcept and positively with girls'. Teacher encouragement of students to praise other students correlated positively with boys' anxiety and negatively with girls'. Teacher modeling of self-praise and teacher encouragement of students to praise other students were the best predictors of self-concept. 相似文献
927.
Sue Lacey Bryant Helen Bingham Ruth Carlyle Alison Day Linda Ferguson David Stewart 《Health information and libraries journal》2018,35(1):70-77
This article is the fourth in a series on New Directions. The National Health Service is under pressure, challenged to meet the needs of an ageing population, whilst striving to improve standards and ensure decision making is underpinned by evidence. Health Education England is steering a new course for NHS library and knowledge services in England to ensure access to knowledge and evidence for all decision makers. Knowledge for Healthcare calls for service transformation, role redesign, greater coordination and collaboration. To meet user expectations, health libraries must achieve sustainable, affordable access to digital content. Traditional tasks will progressively become mechanised. Alongside supporting learners, NHS librarians and knowledge specialists will take a greater role as knowledge brokers, delivering business critical services. They will support the NHS workforce to signpost patients and the public to high‐quality information. There is a need for greater efficiency and effectiveness through greater co‐operation and service mergers. Evaluation of service quality will focus more on outcomes, less on counting. These changes require an agile workforce, fit for the future. There is a bright future in which librarians’ expertise is used to mobilise evidence, manage and share knowledge, support patients, carers and families, optimise technology and social media and provide a keystone for improved patient care and safety. 相似文献
928.
香港大学图书馆领导研修班是为现任和未来图书馆领导而设的密集式培训班,预计参加者主要为现任或未来的馆长或助理馆长.研修班将采用英语作为主要讲授语言另辅以部分中文翻译,采取让学员透过一系列主题讲学、个案研究、小组活动及互动讨论的方式向其它馆员和资讯业专家学习. 相似文献
929.
Joanne DiFrancisco-Donoghue William G. Werner Peter C. Douris Hallie Zwibel 《运动与健康科学(英文)》2022,11(6):725
BackgroundEsports players, like traditional athletes, practice for long hours and, thus, are vulnerable to the negative health effects of prolonged sitting. There is a lack of research on the physical activity and the health ramifications of prolonged sitting by competitive players. The purpose of this study was to investigate activity levels, body mass index (BMI), and body composition in collegiate esports players as compared to age-matched controls.MethodsTwenty-four male collegiate esports players and non-esports players between 18 and 25 years of age signed a written consent to participate. Physical activity was examined using daily activity (step count) with a wrist-worn activity tracker. A questionnaire assessing physical activity was also administered. Secondary outcomes included body-fat percentage, lean-body mass, BMI, and bone mineral content measured using dual X-ray absorptiometry.ResultsThe step count in the esports players was significantly lower than the age-matched controls (6040.2 ± 3028.6 vs. 12843.8 ± 5661.1; p = 0.004). Esports players exhibited greater body-fat percentage (p = 0.05), less lean body mass (p = 0.003), and less bone mineral content (p = 0.03), despite no difference in BMI between the esports and non-esports players.ConclusionAs compared to non-esports players, collegiate esports players were significantly less active and had a higher body-fat percentage, with lower lean body mass and bone mineral content. The BMIs showed no difference between the 2 groups. Esports athletes displayed significantly less activity and poor body composition, which are all correlated with potential health issues and risk of injury. BMI did not capture this difference and should not be considered as an accurate measure of health in competitive esports players. 相似文献
930.
Science & Education - 相似文献