全文获取类型
收费全文 | 23498篇 |
免费 | 273篇 |
国内免费 | 129篇 |
专业分类
教育 | 16262篇 |
科学研究 | 2340篇 |
各国文化 | 175篇 |
体育 | 2653篇 |
综合类 | 25篇 |
文化理论 | 158篇 |
信息传播 | 2287篇 |
出版年
2021年 | 183篇 |
2020年 | 299篇 |
2019年 | 448篇 |
2018年 | 615篇 |
2017年 | 633篇 |
2016年 | 576篇 |
2015年 | 372篇 |
2014年 | 496篇 |
2013年 | 4104篇 |
2012年 | 498篇 |
2011年 | 567篇 |
2010年 | 413篇 |
2009年 | 423篇 |
2008年 | 505篇 |
2007年 | 398篇 |
2006年 | 478篇 |
2005年 | 354篇 |
2004年 | 556篇 |
2003年 | 511篇 |
2002年 | 547篇 |
2001年 | 694篇 |
2000年 | 495篇 |
1999年 | 408篇 |
1998年 | 235篇 |
1997年 | 249篇 |
1996年 | 260篇 |
1995年 | 281篇 |
1994年 | 236篇 |
1993年 | 239篇 |
1992年 | 371篇 |
1991年 | 314篇 |
1990年 | 332篇 |
1989年 | 369篇 |
1988年 | 332篇 |
1987年 | 313篇 |
1986年 | 309篇 |
1985年 | 335篇 |
1984年 | 295篇 |
1983年 | 333篇 |
1982年 | 262篇 |
1981年 | 244篇 |
1980年 | 240篇 |
1979年 | 352篇 |
1978年 | 267篇 |
1977年 | 232篇 |
1976年 | 234篇 |
1975年 | 184篇 |
1974年 | 188篇 |
1973年 | 187篇 |
1971年 | 166篇 |
排序方式: 共有10000条查询结果,搜索用时 9 毫秒
71.
This paper explores the information nature of culture. It is represented as an extragenetic and nonorganizational information process and system. Information is regarded as a universal property of matter that is essentially associated with development processes and realizes various forms and ways of storage and circulation at various development stages of global evolution. The socio-cultural principle of exogenous accumulation, transmission, and transformation of information is analyzed in the context of the continuing growth of the information content of material systems on the superhighway of global-universal evolution. It is noted that the information concept of culture evolves into a new area of cultural studies, that is information and cultural studies, advancing our understanding of the nature of culture and cultural genesis. 相似文献
72.
P. A. Kalachikhin 《Scientific and Technical Information Processing》2018,45(1):28-34
The issues related to funding of public research organizations are explored. The history of scientometric information systems is outlined. The advantages and disadvantages of a bibliometric approach to financing of research organizations are analyzed. The link between the assessment of the scientific and technological potential of an institution and the optimal allocation of funds is investigated. Recommendations on how to improve the efficiency of public resources allocated for scientific research are presented. 相似文献
73.
A comparison of 1,096 professional journalists in China and the United States on attitudes toward attribution and plagiarism reveals Chinese journalists were more likely to see attribution as a practice to be embraced regardless of career longevity and culture, suggesting journalistic norms are more important than a collectivist orientation. Attribution was more likely to be embraced by those who see principles as more important than expediency, affirming research that plagiarism is hardly a monolithic concept. Overall, journalists in the two nations did not vary significantly in their attitudes toward plagiarism, despite vast differences in culture and politics as well as evidence that in some other fields China is more accepting of reusing material without attribution. The data show that among journalists, attitudes toward plagiarism are shared across national boundaries, reinforcing related research showing that a journalism culture exists and is shared at least in part across national boundaries. 相似文献
74.
A rich literature exists reinforcing the notion that both perceived and received social support has stress ameliorating and protective benefits both psychologically and physiologically. However, recent literature suggests that excessive dyadic negative problem talk about an issue, a phenomenon labeled co-rumination, may reverse much of the beneficial effects of social support. Healthy young adults participated in a laboratory research study exploring the associations between co-rumination and immune system inflammatory response. Partial correlations indicated a positive association between co-rumination and C-reactive protein and a negative association between co-rumination and interleukin-6 after controlling for stress, anxiety, and temperature. Discussion focuses on the means by which co-rumination may lead to negative health outcomes. 相似文献
75.
Increased genetic testing in personalized medicine presents unique challenges for couples, including managing disease risk and potential discrimination as a couple. This study investigated couples’ conflicts and support gaps as they coped with perceived genetic discrimination. We also explored the degree to which communal coping was beneficial in reducing support gaps and ultimately stress. Dyadic analysis of married adults (N?=?266, 133 couples), in which one person had the genetic risk for serious illness, showed that perceived discrimination predicted more frequent conflicts about alpha-1 antitrypsin deficiency-related treatment, privacy boundaries, and finances, which, in turn, predicted wider gaps in emotion and esteem support, and greater stress for both spouses. Communal coping predicted lower support gaps for both partners and marginally lower stress. 相似文献
76.
Daniel Maier A. Waldherr P. Miltner G. Wiedemann A. Niekler A. Keinert 《Communication methods and measures》2018,12(2-3):93-118
ABSTRACTLatent Dirichlet allocation (LDA) topic models are increasingly being used in communication research. Yet, questions regarding reliability and validity of the approach have received little attention thus far. In applying LDA to textual data, researchers need to tackle at least four major challenges that affect these criteria: (a) appropriate pre-processing of the text collection; (b) adequate selection of model parameters, including the number of topics to be generated; (c) evaluation of the model’s reliability; and (d) the process of validly interpreting the resulting topics. We review the research literature dealing with these questions and propose a methodology that approaches these challenges. Our overall goal is to make LDA topic modeling more accessible to communication researchers and to ensure compliance with disciplinary standards. Consequently, we develop a brief hands-on user guide for applying LDA topic modeling. We demonstrate the value of our approach with empirical data from an ongoing research project. 相似文献
77.
78.
79.
80.