全文获取类型
收费全文 | 401篇 |
免费 | 6篇 |
专业分类
教育 | 274篇 |
科学研究 | 38篇 |
各国文化 | 8篇 |
体育 | 66篇 |
综合类 | 1篇 |
文化理论 | 4篇 |
信息传播 | 16篇 |
出版年
2022年 | 2篇 |
2021年 | 5篇 |
2020年 | 6篇 |
2019年 | 18篇 |
2018年 | 17篇 |
2017年 | 20篇 |
2016年 | 15篇 |
2015年 | 9篇 |
2014年 | 21篇 |
2013年 | 85篇 |
2012年 | 14篇 |
2011年 | 9篇 |
2010年 | 5篇 |
2009年 | 14篇 |
2008年 | 13篇 |
2007年 | 10篇 |
2006年 | 17篇 |
2005年 | 12篇 |
2004年 | 12篇 |
2003年 | 4篇 |
2002年 | 15篇 |
2001年 | 8篇 |
2000年 | 9篇 |
1999年 | 5篇 |
1998年 | 7篇 |
1997年 | 8篇 |
1996年 | 7篇 |
1995年 | 8篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1978年 | 2篇 |
1975年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有407条查询结果,搜索用时 218 毫秒
71.
Scholars in diverse fields of inquiry have identified the need to expand individual-based information seeking and behavior models and systems to incorporate social as well as collaborative dimensions. However, the research areas of Social Information Seeking (SIS) and Collaborative Information Seeking (CIS) have been largely disconnected from one another despite a few notable attempts to study them under one umbrella. Researchers in these communities have recently realized the value of bringing SIS and CIS together for two main reasons: often it is impossible to separate social and collaborative dimensions in a project; and by considering these two aspects of information seeking, we may be able to support human information behavior in ways not previously possible. A brief synthesis of work in the domains of SIS and CIS is presented here. Then, an integrated view is presented to consider Social and Collaborative Information Seeking (SCIS) as an intersection and extension of SIS and CIS. Benefits of this approach are discussed and the integrated view is used as the basis to present a research agenda that outlines opportunities and challenges unique to SCIS. 相似文献
72.
Constructing and experiencing boyhoods in research in London 总被引:1,自引:1,他引:1
When Rob was about 14‐years‐old, at an all male boarding school, he was so glad that he did not have a tiny penis like another boy who was called girl. He was popular because he was good at sport, missed his mum and dog terribly but never showed it (except a little to his mum and dog) and talked a lot about girls he fancied. These memories were triggered by an interview based study on the identities of 11‐ to 14‐year‐old boys in London which we conducted from 1997–2000. Rob was the interviewer, and he interviewed boys in groups (45: 36 single sex and nine mixed) and individually (79) in 12 London schools. 相似文献
73.
High-altitude exposure challenges the cardiovascular system to maintain oxygen delivery to the mitochondria under conditions of hypoxic stress. Following acclimatisation (3–5 days), stroke volume (SV) falls to below sea-level values but heart rate remains elevated, such that cardiac output is maintained compared to sea level. The decrease in SV has been a topic of research for over 40 years, but the underlying mechanisms are incompletely understood. Impaired systolic contractile function secondary to reduced coronary arterial oxygen tension has been investigated as a potential cause for the decrease in SV. However, despite in vitro evidence of impaired cardiac contractile force in severe hypoxia, the majority of studies to date have reported enhanced in vivo ventricular systolic function at rest and during exercise in humans up to and above 5000?m. However, the elevated function observed at rest has recently been suggested to reduce the functional reserve available during exercise. While in vivo systolic function appears enhanced at high altitude, a decrease in left ventricular end-diastolic volume (EDV) and altered filling patterns of both ventricles has been observed. The reduction in ventricular filling will undoubtedly affect SV, and four potential mechanisms have been proposed to explain the reduction in left ventricular filling. In this article, both historical and recent reports of systolic function at high altitude will be reviewed, and evidence supporting and refuting each of the four mechanisms underpinning reduced left ventricular filling will be discussed. 相似文献
74.
The network model of organization plays a central role in recent sociological accounts of the information economy. This model is also often presented in organization and information and communication technologies (ICT) literature with an air of enthusiasm that underscores its advantages—flexibility, cooperative culture, innovativeness, and knowledge and technology intensity. Such themes are usually based on a “networking logic” that assumes the trustful cooperation of large and small production firms in a rapidly changing economic environment. We believe that both the logic and the themes based upon it are too narrow to be able to explain the complex dimensions of interorganizational networking. Using Enron as a case study, our goal in this article is to enrich the logic just described and to develop an extended model of the network enterprise. We argue that this is only possible by extending the unit of analysis beyond the production firm, to include, among others, subsidiaries, banks, investors, auditors, and government agencies. The proposed extended model allows the broadening of many of the aforementioned themes, making it possible to arrive at a realistic picture of the complexities of the network enterprise. The managerial advantages of the model are also discussed. 相似文献
75.
‘Ships that pass in the night’: why cultural studies never quite met action research 总被引:1,自引:1,他引:0
Rob Watling 《Educational Action Research》2013,21(2):337-343
76.
Dennis Myers Jon Singletary Rob Rogers Jim Ellor Sidney Barham 《Journal of Teaching in Social Work》2019,39(4-5):323-343
ABSTRACTFaculty and students evaluate the curriculum design and delivery of a synchronous online PhD program in social work that prepares scholar-practitioners in social work research, education, and organizational practice. The designers envision a collaborative community of scholars and leaders nurtured by a cohort-based, sequenced curriculum, and intentional faculty mentoring. This teaching and learning platform provides an opportunity to engage with a globally diverse population of doctoral students while fostering both relationships and quality learning outcomes. Educational design and pedagogical features of the program are described and analyzed through the collaborative thinking and learning platform of the Community of Inquiry (CoI) model’s interdependent elements–teaching, cognitive, and social presence. Eighteen students and ten faculty evaluated the strengths and limitations of the online program across each dimension of the model through student course evaluations, focus-group reflections, and qualitative faculty survey data. Student and faculty respondents specified the benefits of synchronous presence across all three dimensions. They also identified significant barriers, particularly in the areas of teaching and social presence. Implications and recommendations are based on a review of findings that inform pedagogical decisions and design options for online PhD education in social work. 相似文献
77.
78.
To attempt to understand Access to Higher Education provision as an educational social movement is to become caught up in a dialectial dilemma. Is Access allied to the older radical traditions of adult education through a collective emancipatory role or is its role to serve the educational needs of the individual student and/or the economic needs of society? Research carried out at the University of Exeter has shown that while there is a strong rhetoric within the Access movement that supports the more emancipatory approach, practitioners contradict this when questioned about the prime purpose of Access. Gramsci's theory of cultural hegemony can be used to address this contradiction by examining how sub‐cultures, such as the group of Access practitioners, create a mosaic of meaning or a reality map which is drawn from the conflicting ideologies which surround them. 相似文献
79.
The impact of support staff on pupils’ ‘positive approaches to learning’ and their academic progress
Peter Blatchford Paul Bassett Penelope Brown Clare Martin Anthony Russell Rob Webster 《British Educational Research Journal》2011,37(3):443-464
In recent years there has been an unprecedented increase in support staff in schools in England and Wales. There were widespread expectations that this will be of benefit to teachers and pupils but there has been little systematic research to address the impact of support staff. This study used a naturalistic longitudinal design to investigate the relationship between the amount of support (measured by teacher estimates and systematic observation) and pupils’ ‘Positive Approaches to Learning’ (PAL) and academic progress. There were over 8000 pupils across two cohorts and seven age groups. Results on PAL were not straightforward by there was a consistent trend for those with most support to make less academic progress than similar pupils with less support, and this was not explained by characteristics of the pupils such as piror attainment or level of special educational need. 相似文献
80.
Sheikhattari P Stephenson R Assasi N Eftekhar H Zamani Q Maleki B Kiabayan H 《Child abuse & neglect》2006,30(3):231-245
OBJECTIVE: This study examines the determinants of three types of child maltreatment: physical maltreatment, mental maltreatment, and child neglect among school children in the Kurdistan Province of Iran. The analysis examines the impact of socioeconomic, familial, demographic, and household dynamic factors on the three child maltreatment outcomes, and compares the differential impact of these factors across the three types of child maltreatment. A greater understanding of the factors associated with child maltreatment has the potential to inform public health interventions aimed at reducing specific forms of maltreatment and at identifying at risk populations. METHODS: Data were collected from 1,370 school students, age 11-18. Separate logistic models are fitted for six binary outcomes examining self-reported experiences of physical maltreatment in the home or school, mental maltreatment in the home or school, and child neglect in the home or school. RESULTS: Male children were more likely to report experiencing any kind of child maltreatment than girls. Residency in a rural area, poor parental relationships and the use of addictive substances by household members were associated with increased odds of reporting child maltreatment. Poor school performance was associated with the reporting of experiencing maltreatment at school. CONCLUSION: Each of the forms of child maltreatment is highly correlated with socioeconomic, demographic, and living condition factors. The results point to the strong influence that familial factors have in shaping a child's likelihood of reporting maltreatment. Characteristics of the mother were associated with maltreatment, but not characteristics of the father. The results highlight a number of mechanisms through which public health interventions may seek to reduce the prevalence of child maltreatment in Kurdistan; different approaches are needed to reduce child maltreatment in the home and school environments. 相似文献