全文获取类型
收费全文 | 855篇 |
免费 | 16篇 |
专业分类
教育 | 583篇 |
科学研究 | 85篇 |
各国文化 | 11篇 |
体育 | 111篇 |
文化理论 | 22篇 |
信息传播 | 59篇 |
出版年
2023年 | 7篇 |
2022年 | 11篇 |
2021年 | 13篇 |
2020年 | 20篇 |
2019年 | 34篇 |
2018年 | 36篇 |
2017年 | 53篇 |
2016年 | 49篇 |
2015年 | 31篇 |
2014年 | 38篇 |
2013年 | 158篇 |
2012年 | 30篇 |
2011年 | 27篇 |
2010年 | 37篇 |
2009年 | 27篇 |
2008年 | 41篇 |
2007年 | 18篇 |
2006年 | 22篇 |
2005年 | 21篇 |
2004年 | 23篇 |
2003年 | 16篇 |
2002年 | 21篇 |
2001年 | 10篇 |
2000年 | 9篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1997年 | 6篇 |
1996年 | 7篇 |
1995年 | 5篇 |
1994年 | 6篇 |
1993年 | 6篇 |
1992年 | 8篇 |
1991年 | 7篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1982年 | 4篇 |
1980年 | 3篇 |
1978年 | 4篇 |
1976年 | 2篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1969年 | 3篇 |
1957年 | 3篇 |
1944年 | 3篇 |
1866年 | 1篇 |
1860年 | 1篇 |
排序方式: 共有871条查询结果,搜索用时 0 毫秒
91.
Interrogating global flows in higher education 总被引:2,自引:0,他引:2
The paper critically reviews the concept of ‘global flows’, beginning with the discussions of flows and networks in Appadurai (1996), Castells (2000) and Held et al. (1999). Emphasising the need to embed ‘global flows’ in agency and history, and to explore global connectedness in terms of situated cases, the paper develops an analytical framework for analysing global flows in higher education. It then applies that framework in an examination of global ‘scapes’, impacts, transformations, situatedness and relations of power in two national universities, research leaders in their nations but located in contrasting nations: Universitas Indnesia and the Australian National University. 相似文献
92.
93.
Michael Crossley Cresantia Frances Koya Vaka’uta Rosiana Lagi Simon McGrath Konai Helu Thaman Ledua Waqailiti 《Compare》2017,47(6):872-890
AbstractThis article reports on the findings of original field research carried out in the small island developing state of Fiji, in the South Pacific. A North-South research partnership was built upon previous collaboration between team members and, in so doing, pioneered the blending of Pacific and Western research approaches sensitive to a postcolonial positioning. The study interrogates practitioner perspectives on: the nature and quality of teachers and teaching in Fiji; the challenges of teachers’ work and lives; priorities for successful qualitative reform; and theoretical implications for the processes of education policy transfer and qualitative improvement. The analysis draws upon work on the politics of aid and international development, revealing tensions between existing learner-centred policy frameworks and emergent neoliberal and performativity oriented initiatives influenced by international surveys of student achievement, related league tables and the experience of the regional reference societies of Australia, New Zealand and India. 相似文献
94.
Mahar Ali Nawaz Munir Muhammad Elawad Sami Gowen Simon Richard Hague Nigel Graham Meckenzi 《浙江大学学报(A卷英文版)》2004,5(10):1183-1190
Cells and cell-free solutions of the culture filtrate of the bacterial symbiont, Xenorhabdus nematophila taken from the entomopathogenic nematode Steinernema carpocapsae in aqueous broth suspensions were lethal to larvae of the diamondback moth Plutella xylostella. Their application on leaves of Chinese cabbage indicated that the cells can penetrate into the insects in the absence of
the nematode vector. Cell-free solutions containing metabolites were also proved as effective as bacterial cells suspension.
The application of aqueous suspensions of cells of X. nematophila or solutions containing its toxic metabolites to the leaves represents a possible new strategy for controlling insect pests
on foliage. 相似文献
96.
Knee injuries such as anterior cruciate ligament lesions and patellar tendonitis are very frequent in volleyball, and are often attributed to micro traumas that occur during the landing phase of airborne actions. The aim of the present study was to compare different jumping activities during official men's and women's volleyball games. Twelve top-level matches from the Italian men's and women's professional leagues were analysed. The jumps performed during the games were classified according to the landing technique used by the player (left or right foot or both feet together), court position, and ball trajectory. Chi-square analyses were performed to detect differences in landing techniques between the sexes, court positions, and trajectories when serving, attacking, blocking, and setting. Significant differences (P?0.05) were found between the sexes for block, set, and spike but not for the jump serve. The frequency of landings on one foot was related to court position and the trajectory of the sets: when spiking faster sets, the players were more likely to use a one-footed landing. The present results should help coaches and physiotherapists to devise appropriate training and prevention programmes, and reveal the need for further detailed biomechanical investigations of the relationships between landings and knee injuries. 相似文献
97.
Current awareness services are designed to keep users informed about recent developments based around user need profiles. In organisational settings, they may operate through both electronic and social interactions aimed at delivering information that is relevant, pertinent and current. Understanding these interactions can reveal the tensions in current awareness dissemination and help inform ways of making services more effective and efficient. We report an in-depth, observational study of electronic current awareness use within a large London law firm. The study found that selection, re-aggregation and forwarding of information by multiple actors gives rise to a complex sociotechnical distribution network. Knowledge management staff act as a layer of “intelligent filters” sensitive to complex, local information needs; their distribution decisions address multiple situational relevance factors in a situation fraught with information overload and restrictive time-pressures. Their decisions aim to optimise conflicting constraints of recall, precision and information quantity. Critical to this is the use of dynamic profile updates which propagate back through the network through formal and informal social interactions. This supports changes to situational relevance judgements and so allows the network to ‘self-tune’. These findings lead to design requirements, including that systems should support rapid assessment of information items against an individual’s interests; that it should be possible to organise information for different subsequent uses; and that there should be back-propagation from information consumers to providers, to tune the understanding of their information needs. 相似文献
98.
A. Supriya Simon D. Dinesh Roy V. Jayapal T. Vijayakumar 《Indian journal of clinical biochemistry : IJCB》2010,25(2):164-168
Cardiometabolic syndrome is one of the major public health issues of this century which describes a cluster of clinical characteristics.
Seventy two patients with coronary artery disease (CAD) and cardiometabolic syndrome and forty healthy age and sex matched
normal controls were selected for this study. Detailed clinical epidemiological and anthropometric characteristics were noted.
Lipid profile and Cytokinesis-block micronuclei (CBMN) assay using cytochalasin B were carried out in all the subjects. Serum
total cholesterol, triglyceride and LDL-cholesterol was significantly higher and HDL cholesterol was significantly lower in
patients compared to their normal counter-parts (P<0.05). CBMN frequency of the patients was significantly higher at all ages
compared to their normal counter parts (P<0.05). Various risk factors like diabetes, hypertension, dyslipidemia, abdominal
obesity, smoking and alcoholism were found influenced the CBMN frequency; but the changes were not significant. From this
study it can be concluded that DNA damage was found to be higher in patients with cardiometabolic syndrome which may be attributed
to the generation of free radicals associated with alcohol consumption, tobacco use, dyslipidemia and glucose intolerance
and the accumulation of free radicals with increase in age. 相似文献
99.
Al-Abood SA Bennett SJ Hernandez FM Ashford D Davids K 《Journal of sports sciences》2002,20(3):271-278
We assessed the effects on basketball free throw performance of two types of verbal directions with an external attentional focus. Novices (n = 16) were pre-tested on free throw performance and assigned to two groups of similar ability (n = 8 in each). Both groups received verbal instructions with an external focus on either movement dynamics (movement form) or movement effects (e.g. ball trajectory relative to basket). The participants also observed a skilled model performing the task on either a small or large screen monitor, to ascertain the effects of visual presentation mode on task performance. After observation of six videotaped trials, all participants were given a post-test. Visual search patterns were monitored during observation and cross-referenced with performance on the pre- and post-test. Group effects were noted for verbal instructions and image size on visual search strategies and free throw performance. The 'movement effects' group saw a significant improvement in outcome scores between the pre-test and post-test. These results supported evidence that this group spent more viewing time on information outside the body than the 'movement dynamics' group. Image size affected both groups equally with more fixations of shorter duration when viewing the small screen. The results support the benefits of instructions when observing a model with an external focus on movement effects, not dynamics. 相似文献
100.
William B. Fairley Frederick Mosteller Julian L. Simon Delbert C. Miller James Monaco 《Communication Booknotes Quarterly》2013,44(1):19-20
William B. Fairley and Frederick Mosteller, eds. Statistics and Public Policy (Reading, Mass.: Addison-Wesley, 1977— price not given) Julian L. Simon's Basic. Research Methods in Social Sciences: The Art of Empirical Investigation (New York: Random House, 1978—$14.95) Delbert C. Miller's Handbook of Research Design and Social Measurement (New York: McKay, 1978—$14.95, with a paperback edition available) James Monaco, ed. Media Culture and Celebrity: The Media as Image Makers (New York: Delta Books (Dell), 1978—$4.95 each, paper) 相似文献