全文获取类型
收费全文 | 2925篇 |
免费 | 54篇 |
国内免费 | 4篇 |
专业分类
教育 | 2007篇 |
科学研究 | 204篇 |
各国文化 | 65篇 |
体育 | 315篇 |
综合类 | 2篇 |
文化理论 | 39篇 |
信息传播 | 351篇 |
出版年
2023年 | 13篇 |
2022年 | 11篇 |
2021年 | 36篇 |
2020年 | 55篇 |
2019年 | 88篇 |
2018年 | 171篇 |
2017年 | 133篇 |
2016年 | 136篇 |
2015年 | 87篇 |
2014年 | 110篇 |
2013年 | 649篇 |
2012年 | 110篇 |
2011年 | 102篇 |
2010年 | 83篇 |
2009年 | 88篇 |
2008年 | 85篇 |
2007年 | 74篇 |
2006年 | 56篇 |
2005年 | 60篇 |
2004年 | 55篇 |
2003年 | 45篇 |
2002年 | 44篇 |
2001年 | 33篇 |
2000年 | 47篇 |
1999年 | 28篇 |
1998年 | 36篇 |
1997年 | 31篇 |
1996年 | 34篇 |
1995年 | 34篇 |
1994年 | 27篇 |
1993年 | 37篇 |
1992年 | 21篇 |
1991年 | 18篇 |
1990年 | 32篇 |
1989年 | 16篇 |
1988年 | 16篇 |
1987年 | 17篇 |
1986年 | 14篇 |
1985年 | 19篇 |
1984年 | 22篇 |
1983年 | 16篇 |
1982年 | 17篇 |
1981年 | 16篇 |
1980年 | 17篇 |
1979年 | 12篇 |
1978年 | 11篇 |
1977年 | 12篇 |
1976年 | 7篇 |
1974年 | 10篇 |
1973年 | 8篇 |
排序方式: 共有2983条查询结果,搜索用时 31 毫秒
1.
Gale Macleod Robin Dallas-Childs Colin Brough Martin Toye 《Journal of Research in Special Educational Needs》2021,21(Z1):25-35
In this article we examine the complex relationship between care experience, mental health and exclusion from school and how young people (YP) negotiate these different experiences and identities. The study is a secondary analysis, informed by symbolic interactionist theory, of interviews conducted with 19 care experienced YP in Scotland. Not all of the YP were excluded and not all had a formal mental health diagnosis, as such our study design allows interrogation of the contexts and relationships which not only facilitate but also disrupt pathways to exclusion. It also allows reconsideration of assumptions of vulnerability which are often applied to care experienced YP. Our findings suggest that these YP are moving beyond ‘role playing’ the identities ascribed to them and actively seek out relationships which enable them to construct alternative identities. 相似文献
2.
Although there has been a great deal of research into Collaborative Information Retrieval (CIR) and Collaborative Information Seeking (CIS), the majority has assumed that team members have the same level of unrestricted access to underlying information. However, observations from different domains (e.g. healthcare, business, etc.) have suggested that collaboration sometimes involves people with differing levels of access to underlying information. This type of scenario has been referred to as Multi-Level Collaborative Information Retrieval (MLCIR). To the best of our knowledge, no studies have been conducted to investigate the effect of awareness, an existing CIR/CIS concept, on MLCIR. To address this gap in current knowledge, we conducted two separate user studies using a total of 5 different collaborative search interfaces and 3 information access scenarios. A number of Information Retrieval (IR), CIS and CIR evaluation metrics, as well as questionnaires were used to compare the interfaces. Design interviews were also conducted after evaluations to obtain qualitative feedback from participants. Results suggested that query properties such as time spent on query, query popularity and query effectiveness could allow users to obtain information about team's search performance and implicitly suggest better queries without disclosing sensitive data. Besides, having access to a history of intersecting viewed, relevant and bookmarked documents could provide similar positive effect as query properties. Also, it was found that being able to easily identify different team members and their actions is important for users in MLCIR. Based on our findings, we provide important design recommendations to help develop new CIR and MLCIR interfaces. 相似文献
3.
Martin R?tteler 《Informatik - Forschung und Entwicklung》2006,55(3):3-20
Quantum algorithms are a field of growing interest within the theoretical computer science as
well as the physics community. Surprisingly, although the number of researchers working on the subject
is ever-increasing, the number of quantum algorithms found so far is quite small. In fact, the task of
designing new quantum algorithms has been proven to be extremely difficult. In this paper we give an overview
of the known quantum algorithms and briefly describe the underlying ideas. Roughly, the algorithms presented
are divided into hidden subgroup type algorithms and in amplitude amplification type algorithms. While
the former deal with problems of group-theoretical nature and have the promise to yield strong separations
of classical and quantum algorithms, the latter have been proved to be a prolific source of algorithms
in which a polynomial speed-up as compared to classical algorithms can be achieved. We also discuss
quantum algorithms which do not fall under these two categories and give a survey of techniques of
general interest in quantum computing such as adiabatic computing, lower bounds for quantum algorithms,
and quantum interactive proofs. 相似文献
4.
5.
6.
Oliver Dieckmann 《Journal of Cultural Economics》1996,20(4):297-320
Shortcomings of neoclassical growth theory and growth accounting are viewed as a challenge for cultural economics. Recently, new growth theory has introduced several growth determinants and has closed the gap between theoretical and empirical research. Whether this development leaves space for cultural determinants in explaining economic growth is in the center of this paper. The theoretical analysis shows how an endogenous growth model can be used to explain the impact on economic growth of cultural determinants. The empirical part uses indices from cross-cultural studies to extend recent cross-country growth regressions. Among other Hofstedes uncertainty avoidance index is shown to be significantly correlated with economic growth.Discussion paper presented at the 9th international conference of the Association for Cultural Economics, Boston, May 8–11, 1996. 相似文献
7.
Diane M. Martin 《Journal of Applied Communication Research》2004,32(2):147-170
Women in middle management continue to face multiple paradoxes arising from their structural and gendered locations that add to the uncertainty of negotiating organizational life. Investigating the lived experiences of women middle managers can illuminate the constraints and paradoxes endemic to organizing, for such experiences foreground tensions at the intersection of structure, identity, agency, and power. Specifically, this contextual investigation of conversational humor explores links between organizational status, gender, and paradox. In so doing, it demonstrates how women can use humor to negotiate managerial identities and to navigate organizational life. This study uncovers nuanced and important communication tactics of middle management women. This study also reveals the value of investigating the complex convergence of humor, gender, and organizational communication theory. 相似文献
8.
9.
There are three models for community archives in China. The first one is where community archives are kept in government-funded/government-established museums or archives. The second is where community archives are kept by scholarly organizations such as universities. The third involves the community establishing its own archive. This last model is very unusual in China. The PiCun Culture and Art Museum of Migrant Labor (PCMML) provides an example of this model as it is the only independent community archives focusing on migrant workers in China. This paper explores the emergence and development of PCMML, its impact on community members and challenges faced including funding and staffing, but also those unique to China—PCMML is greatly influenced by a range of national and local government policies and regulations. Conclusions are that survival strategies for independent community archives in China are dependent on three dimensions: the community itself, society and the government. Cultural consciousness of the community is the premise for the establishment and sustainability of independent community archives, and independent community archives can be the public space to cultivate cultural consciousness of community members and thus activates community members’ agency to document, preserve and disseminate their own history. At the same time, independent community archives also need to engage with broader society to avoid involution and gain support and understanding. Independent community archives are constrained by government policies and regulations, so it is essential for them to develop strategic relationships with government. 相似文献
10.
Albert Martin Susanne Bartscher-Finzer Anne Richards 《Publishing Research Quarterly》2018,34(1):69-88
Our study compares the motivations of Australian and German book publishers. The results demonstrate remarkable similarities, but also a significant difference regarding the effects of the publishers’ self-concept. In the German case the publishers with a dominant economic orientation are more proactive than the publishers with a dominant cultural orientation. In the Australian case, this correlation does not exist. The same difference holds for the relationship between the economic orientation and extrinsic motivation. We discuss these results and examine empirical evidence and theoretical suggestions to explain the differing findings. The data stem from surveys conducted in the two countries with responses of 196 (Germany) and 54 publishers (Australia). 相似文献