首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4085篇
  免费   51篇
  国内免费   33篇
教育   2711篇
科学研究   489篇
各国文化   55篇
体育   293篇
综合类   59篇
文化理论   24篇
信息传播   538篇
  2023年   15篇
  2022年   50篇
  2021年   88篇
  2020年   134篇
  2019年   145篇
  2018年   164篇
  2017年   166篇
  2016年   150篇
  2015年   146篇
  2014年   184篇
  2013年   797篇
  2012年   175篇
  2011年   206篇
  2010年   196篇
  2009年   171篇
  2008年   160篇
  2007年   178篇
  2006年   164篇
  2005年   91篇
  2004年   80篇
  2003年   87篇
  2002年   65篇
  2001年   55篇
  2000年   55篇
  1999年   36篇
  1998年   27篇
  1997年   29篇
  1996年   24篇
  1995年   16篇
  1994年   18篇
  1993年   19篇
  1992年   18篇
  1991年   23篇
  1990年   10篇
  1989年   16篇
  1988年   12篇
  1987年   18篇
  1986年   12篇
  1985年   20篇
  1984年   12篇
  1983年   11篇
  1982年   17篇
  1981年   12篇
  1980年   10篇
  1979年   14篇
  1978年   11篇
  1977年   5篇
  1975年   7篇
  1973年   6篇
  1971年   6篇
排序方式: 共有4169条查询结果,搜索用时 78 毫秒
21.
[目的/意义]相对于传统的信息行为分析,数据驱动的信息行为研究更注重数据的外在性与客观性,所得的结果能够更为全面地认识用户信息行为本质特征。[方法/过程]通过自行构建的APP实现对微信用户分享和阅读行为记录的采集,并对微信用户信息行为的时间特性进行系统的分析。[结果/结论]结果表明:微信用户日常信息行为存在显著的假日效应,但是在信息行为时间间隔分布上存在明显厚尾现象和很强的阵发性,预示着微信用户信息行为具有较高的复杂性和不确定性,无法对其产生过程实现有效的预测;此外,微信用户所分享的内容具有很强的时效性,多数内容在微信中能够得到及时的传播,但传播链长度显著受分享内容主题的影响。  相似文献   
22.
23.
ABSTRACT

With increasing demand for improved medical equipment and healthcare, next-generation biomedical engineers need strong design skills. Equipping biomedical engineering students with tools for idea generation and development can increase student design success. Design Heuristics are an ideation tool developed through empirical studies of product designs. While identified in the mechanical engineering space, Design Heuristics may be applicable in biomedical engineering design. In our study, we implemented a Design Heuristics session during upper-level undergraduate and first-year graduate biomedical engineering design courses. We examined the applicability of Design Heuristics within individual and team concept generation contexts. The findings demonstrated that biomedical engineering students were able to use Design Heuristics to generate multiple concepts, and that initial concepts produced using Design Heuristics were carried over into final team design. The results support the applicability of Design Heuristics to student idea generation in biomedical engineering design.  相似文献   
24.
在先秦时期,除了名家和墨家之外,在名学研究方面,其成就最大的当属荀子。荀子对于先秦名学之贡献主要是进一步批判和发展名家和墨辩之名学,使儒家之名学更加严谨。然而,历来有关荀子之研究多着眼于其心、性、天、礼等之探讨,而疏于抉发其名学之义蕴。直到近年来,由于大陆学界积极挖掘中国古代之逻辑思想,以免西方逻辑专美于前,于是有关中国逻辑史或逻辑思想之论着,如雨后春笋般出现。此等有关中国逻辑论者之研究对象主要为先秦时期讨论名实辩说之篇章,尤其是公孙龙、墨辩和荀子名学之研究。此外,由于一些国外学者之参与,使得中国古代逻辑之研究,尤其是关于荀子名学之研究,如今已成一较为普遍之现象。有关荀子之研究,日本汉学界已作出极为可喜之成绩。唯历来有关荀子之研究,日本汉学界多着重其心、性、天、礼或政治、伦理学说之阐述,而较疏于其名学之研究。然而,就目前已发表之论着而言,无论是在厘清荀子之哲学立场或对于名学之分析等,亦颇有其独到之处,值得吾人借镜。  相似文献   
25.
26.
Chi (1992, 1993) Chi et al. (1994) suggests that many of the difficulties encountered by students in learning Physics concepts arise because they attribute the ontology of material substances to these concepts. These concepts are actually a special type of process - 'Constraint-Based Interactions' (CBI). Slotta and Chi (1996) reported on a study where a group of students explicitly trained in the CBI ontology showed significant gains over a control group in problem solving performance in eight simple electric circuit problems. This paper reports on a series of four studies which explore the usefulness of the ontological categorization framework in investigating students' alternative conceptions of electric circuits and in developing a teaching strategy for promoting conceptual change in the learning of basic electric circuitry concepts.  相似文献   
27.
在机关、企业、学校的礼仪教育中忽视了一个重要环节,就是文明社区建设中的礼仪教育和规范。社区成员的言行规范直接反映着该社区乃至该城市的文明程度高低。走向世界的中国人应有哪些涵养,应掌握哪些礼仪规范,应引起各级组织和各界人士的高度重视。礼仪与文明都属于文化现象,这是构成社会主义精神文明的基本要素,它可以从社会的角度陶冶社会成员的心灵,规范社区居民的行为,培养高尚的审美情趣。用礼仪教育来营造良好的社会秩序和社会风气,用礼仪文化促进文明社区的发展,是提升文明社区形象的一大举措。  相似文献   
28.
This study explored the role of self-construal in moderating the effect of same- and varied-ad repetition on consumer response to advertising and brand on the basis of self-construal and encoding variability theory. In the study, subjects primed with independent or interdependent self-construal were exposed to either the same or varied ads. Findings indicate that, for foreground information in ad, independent self-construal subjects elicited more than interdependent self-construal subjects in same-ad repetition whereas there was no difference between independent and interdependent self-construal subjects in varied-ad repetition. However, for background information, interdependent self-construal subjects performed better than independent self-construal subjects in both same- and varied-ad repetition. In the case of brand recall, in varied-ad repetition, interdependent self-construal subjects recalled better than independent self-construal subjects did, whereas there was no difference between interdependent and independent self-construal subjects in same-ad repetition. It was also found interdependent self-construal subjects evaluated the target brand more positively than independent self-construal subjects did in varied-ad repetition. However, there was no difference in brand attitude between independent and interdependent subjects in same-ad repetition.  相似文献   
29.
A psychological process called self-referencing justifies the use of ‘you’ statements in advertisements; the more an individual relates an ad to him/herself, the greater the likelihood of recall and favorable evaluation. Self-referencing can be differentiated based on the temporal dimension of the self being activated while processing advertisements: when people remember themselves in the past they engage in retrospective self-referencing whereas they engage in anticipatory self-referencing when imagining themselves in the future. The current study examined the moderating role of consumers’ cultural background (i.e. long-term vs. short-term orientation) on the effects of temporal orientation of self-referencing. A corollary of this premise is that the match between cultural time orientation and the type of self-referencing activated by an ad will increase the extent of viewers’ self-referencing as well as advertising effectiveness. Further, this study confirmed a mediating role of self-referencing in explaining the match effects. The findings inform the extant literature on self-referencing and also provide managerial implications for international advertising practitioners.  相似文献   
30.
This study employed the uses and gratification approach to investigate how journalists perceive relational satisfaction with the public on Twitter, specifically the associations between journalists’ motivations to use Twitter, their Twitter use, and their relational satisfaction with the public. Through a survey of South Korean journalists, this study revealed that journalists’ motivations for Twitter use are positively related to their job-related activities on Twitter (e.g., posting/sharing their news and interacting with audience), which consequently influences perceived relational satisfaction with the public. The findings provide new insight into an increasingly important part of the public’s engagement and news/information flows in the digital media environment. This study expands upon the literature by analyzing how journalists’ motivations for using Twitter and their job-related activities on Twitter are associated with relational satisfaction with the public.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号