全文获取类型
收费全文 | 19560篇 |
免费 | 142篇 |
国内免费 | 7篇 |
专业分类
教育 | 14812篇 |
科学研究 | 1673篇 |
各国文化 | 161篇 |
体育 | 1017篇 |
综合类 | 3篇 |
文化理论 | 502篇 |
信息传播 | 1541篇 |
出版年
2022年 | 49篇 |
2021年 | 76篇 |
2020年 | 149篇 |
2019年 | 213篇 |
2018年 | 2405篇 |
2017年 | 2330篇 |
2016年 | 1824篇 |
2015年 | 323篇 |
2014年 | 347篇 |
2013年 | 1894篇 |
2012年 | 435篇 |
2011年 | 899篇 |
2010年 | 1016篇 |
2009年 | 598篇 |
2008年 | 894篇 |
2007年 | 1332篇 |
2006年 | 272篇 |
2005年 | 573篇 |
2004年 | 586篇 |
2003年 | 534篇 |
2002年 | 288篇 |
2001年 | 136篇 |
2000年 | 134篇 |
1999年 | 112篇 |
1998年 | 105篇 |
1997年 | 122篇 |
1996年 | 115篇 |
1995年 | 122篇 |
1994年 | 116篇 |
1993年 | 92篇 |
1992年 | 110篇 |
1991年 | 110篇 |
1990年 | 101篇 |
1989年 | 91篇 |
1988年 | 84篇 |
1987年 | 70篇 |
1986年 | 65篇 |
1985年 | 72篇 |
1984年 | 60篇 |
1983年 | 75篇 |
1982年 | 73篇 |
1981年 | 78篇 |
1980年 | 82篇 |
1979年 | 74篇 |
1978年 | 54篇 |
1977年 | 44篇 |
1976年 | 53篇 |
1975年 | 43篇 |
1974年 | 40篇 |
1971年 | 29篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
931.
932.
933.
934.
935.
936.
Knowledge management systems (KMSs) support high-quality services while shaping and improving positioning of services. Given such strategic importance of KMS, this study explores the effects of different types of KMS, which respond to the attributes (i.e., diversity and tacitness) of collective knowledge, on service (re-)positioning. Through a case study of a financial consulting company at the core of KMSs, combinations of the two knowledge attributes are used to determine which type of KMS (i.e., information library, deepened stock, thought islands, and shared brain) offers the greatest efficiency and effectiveness in service (re-)positioning. The joint concerns of service innovation scope and specificity are also considered. Finally, the study discusses the theoretical and practical implications on KMS design and functionality in the new business age of service innovation. 相似文献
937.
938.
Jessica M. Faupel-Badger Kimberley Raue David E. Nelson Sophia Tsakraklides 《CBE life sciences education》2015,14(1)
Published evaluations of career preparation of alumni from long-standing postdoctoral fellowship programs in the biomedical sciences are limited and often focus on quantitative analysis of data from extant publicly available sources. Qualitative methods provide the opportunity to gather robust information about specific program elements from structured postdoctoral training programs and the influence of this training on subsequent career paths of alumni. In-depth interviews with a subset of the National Cancer Institute’s Cancer Prevention Fellowship Program (CPFP) alumni (n = 27), representing more than 25 years of the program’s history and multiple career sectors, were conducted to assess alumni reflections on the training environment and career preparation during their time in the CPFP. NVivo software was used to analyze data and identify major themes. Four main themes emerged from these interviews, including: the value of structured training curriculum, mentorship, transdisciplinary environment, and professional identity. Even when reflecting on training that occurred one to two decades earlier, alumni were able to highlight specific components of a structured postdoctoral training program as influencing their research and career trajectories. These results may have relevance for those interested in assessing how postdoctoral training can influence fellows throughout their careers and understanding salient features of structured programs. 相似文献
939.
940.
This paper presents an approach aimed at creating business ontologies for knowledge codification in company. It is based on the principles of ontological engineering and cognitive psychology. Ontologies that describe the main concepts of knowledge are used both for knowledge creation and codification. The proposed framework is targeted at the development of methodologies that can scaffold the process of knowledge structuring and orchestrating for better understanding and knowledge sharing. The orchestrating procedure is the kernel of ontology development. The main stress is put on using visual techniques of mind mapping. Cognitive bias and some results of Gestalt psychology are highlighted as a general guideline. The ideas of balance, clarity, and beauty are applied to the ontology orchestrating procedures. The examples are taken mainly from the project management practice. The paper contributes to managerial practice by describing the practical recommendations for effective knowledge management based on ontology engineering and knowledge structuring techniques. 相似文献