全文获取类型
收费全文 | 10064篇 |
免费 | 137篇 |
国内免费 | 31篇 |
专业分类
教育 | 7097篇 |
科学研究 | 1042篇 |
各国文化 | 132篇 |
体育 | 780篇 |
综合类 | 7篇 |
文化理论 | 82篇 |
信息传播 | 1092篇 |
出版年
2022年 | 55篇 |
2021年 | 84篇 |
2020年 | 145篇 |
2019年 | 230篇 |
2018年 | 284篇 |
2017年 | 326篇 |
2016年 | 315篇 |
2015年 | 217篇 |
2014年 | 270篇 |
2013年 | 2032篇 |
2012年 | 226篇 |
2011年 | 244篇 |
2010年 | 229篇 |
2009年 | 205篇 |
2008年 | 239篇 |
2007年 | 230篇 |
2006年 | 187篇 |
2005年 | 176篇 |
2004年 | 185篇 |
2003年 | 161篇 |
2002年 | 163篇 |
2001年 | 177篇 |
2000年 | 203篇 |
1999年 | 169篇 |
1998年 | 120篇 |
1997年 | 123篇 |
1996年 | 114篇 |
1995年 | 100篇 |
1994年 | 100篇 |
1993年 | 84篇 |
1992年 | 132篇 |
1991年 | 143篇 |
1990年 | 121篇 |
1989年 | 113篇 |
1988年 | 114篇 |
1987年 | 119篇 |
1986年 | 132篇 |
1985年 | 133篇 |
1984年 | 114篇 |
1983年 | 134篇 |
1982年 | 104篇 |
1981年 | 93篇 |
1980年 | 67篇 |
1979年 | 106篇 |
1978年 | 112篇 |
1977年 | 86篇 |
1976年 | 78篇 |
1975年 | 74篇 |
1974年 | 60篇 |
1973年 | 66篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
Gary James Harfitt 《Teachers and Teaching》2013,19(2):212-228
This study focuses on how two teachers working in reduced-size secondary classes of the same grade adapted their pedagogy as a result of a brokered dialogue between myself as researcher and 43 grade 10 students from the teachers’ classes. Research was carried out over the course of one academic year. First, students’ perspectives on studying in a reduced-size class were elicited before they were invited to suggest ways of improving the teaching and learning. These interviews were transcribed and given to the teachers of these classes. Next, these teachers were interviewed to gauge their opinions on what the students had reported in the earlier interviews. At a later stage, their teaching was observed to determine whether, and to what extent, the two teachers had attempted to incorporate changes based on the feedback from pupils. The study showed that the pupil voice is a very powerful and constructive trigger for enacting teachers’ pedagogical change and developing our understanding of students’ learning processes. Findings demonstrate that teachers responded positively to their students’ perspectives despite initial apprehensions. Implications for professional development and good practices in reduced-size classes are also presented. 相似文献
952.
‘Critical thinking’ is commonly included in the lists of graduate attributes (GAs), which all Australian universities are now required to develop and implement. That efforts to do so have met with limited success is due to a range of factors including inconsistent or naive conceptualisations, the failure to explicitly develop or assess GAs, and the persistence of ‘signature’ disciplinary practices. This paper describes the design and implementation of a law course in which the development and assessment of critical thinking were core objectives. Key features of the course included an operational conceptualisation of ‘critical legal thinking’, the development of closely aligned teaching and learning activities, and an aligned, coherent and innovative assessment programme. An evaluation of the first iteration of the course identified a number of successful outcomes as well as implications for ongoing course development. 相似文献
953.
954.
955.
Jorge Feijoo Xosé Ramón Nóvoa Teresa Rivas María Jesús Mosquera Javier Taboada Cristina Montojo Fernando Carrera 《Journal of Cultural Heritage》2013,14(5):365-376
We describe the results of electromigration desalination of two soluble salt-contaminated Galician granites. The efficacy of electromigration, which had not been previously applied to granite, was assessed for two types of granite contaminated with a 20% NaCl solution and seawater. Desalination effectiveness was evaluated as follows: (1) analysis of anode and cathode ion content during testing; (2) analysis of ions at different distances from the electrodes after testing; (3) pH assessment of the stone surfaces; and (4) evaluation of colour changes. Results were very satisfactory; by the end of testing, chloride was reduced by almost 100% in both the NaCl and seawater contaminated samples. Sulfate reduction was also significant, despite this ion's lower mobility. The granite pH values remained close to neutral and colour changes were minimal. The difference in effectiveness of the process for the two types of stone was associated with their dissimilar pore structure. 相似文献
956.
Alessandro N. Vargas Constantin F. Caruntu João Y. Ishihara 《Journal of The Franklin Institute》2019,356(1):31-41
This paper presents conditions to assure the exponential stability in probability for autonomous switching linear systems. The switching signal acting on the autonomous system produces intervals that follow independent, identically distributed stochastic processes—the stability then follows by verifying simple-to-check linear matrix inequalities. 相似文献
957.
In a multi-agent framework, distributed optimization problems are generally described as the minimization of a global objective function, where each agent can get information only from a neighborhood defined by a network topology. To solve the problem, this work presents an information-constrained strategy based on population dynamics, where payoff functions and tasks are assigned to each node in a connected graph. We prove that the so-called distributed replicator equation (DRE) converges to an optimal global outcome by means of the local-information exchange subject to the topological constraints of the graph. To show the application of the proposed strategy, we implement the DRE to solve an economic dispatch problem with distributed generation. We also present some simulation results to illustrate the theoretic optimality and stability of the equilibrium points and the effects of typical network topologies on the convergence rate of the algorithm. 相似文献
958.
959.
This exploratory study examined the influence of national and organizational culture on the use of various performance improvement interventions. Data on intervention use were collected from practitioners in the United States and South Asia. Results revealed that orientation programs, organizational communication, instructor‐led training, and performance appraisals were among the most used interventions in both the United States and South Asia. Findings also indicated that factors such as organization size, location of headquarters, learning and development budget, and reporting structure are related to the use of interventions. Practitioners in South Asia predominantly had expertise in disciplines such as human resources, while those in the United States had experience in instructional design and human performance technology. These differences may influence the development and implementation of instructional and noninstructional interventions. 相似文献
960.
AbstractIn recent years, volunteering has received strong research attention from both scholars and practitioners. For the most part, involvement in volunteer activities has been identified as an important determinant of future volunteering. Through revalidating an existing instrument, the purpose of this study was to assess the dimensions of volunteer satisfaction at the 2012 London Olympic Games and its impact on future volunteer behaviour. The findings of this study shed light on the identification of volunteer satisfaction factors in the mega sporting event setting, particularly for a unique type of volunteer (i.e. media worker) assigned to a special set of tasks. Unlike Galindo-Kuhn and Guzley’s results that revealed participation efficacy and group integration to be strong predictors of volunteer satisfaction, organizational support was the primary predictor for media centre volunteers’ re-participation intention towards future volunteering programmes. 相似文献