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   8696篇
  免费   98篇
  国内免费   8篇
教育   5920篇
科学研究   1118篇
各国文化   54篇
体育   655篇
综合类   4篇
文化理论   55篇
信息传播   996篇
  2022年   51篇
  2021年   103篇
  2020年   144篇
  2019年   181篇
  2018年   314篇
  2017年   282篇
  2016年   276篇
  2015年   167篇
  2014年   279篇
  2013年   1400篇
  2012年   220篇
  2011年   245篇
  2010年   209篇
  2009年   188篇
  2008年   231篇
  2007年   191篇
  2006年   178篇
  2005年   157篇
  2004年   179篇
  2003年   130篇
  2002年   135篇
  2001年   201篇
  2000年   204篇
  1999年   180篇
  1998年   95篇
  1997年   127篇
  1996年   106篇
  1995年   76篇
  1994年   97篇
  1993年   69篇
  1992年   166篇
  1991年   126篇
  1990年   116篇
  1989年   144篇
  1988年   127篇
  1987年   102篇
  1986年   108篇
  1985年   108篇
  1984年   80篇
  1983年   92篇
  1982年   60篇
  1981年   72篇
  1980年   61篇
  1979年   103篇
  1978年   67篇
  1977年   64篇
  1976年   55篇
  1975年   51篇
  1974年   60篇
  1973年   56篇
排序方式: 共有8802条查询结果,搜索用时 15 毫秒
71.
Through a qualitative interview design, this study investigated how participation in a rigorous academic environment may influence gifted students who demonstrate high levels of perfectionism. The study also examined how their responses to a rigorous academic and residential environment may differ according to the type of perfectionism. Findings indicated that some socially prescribed perfectionists reported an increase in perfectionism, whereas some self-oriented perfectionists reported an increase followed by a decrease in their perfectionism. Overall, the majority of the participants, regardless of their type of perfectionism, indicated a decrease in their perfectionism as a result of their new academic environment. Reactions to experiencing imperfections ranged from calm to guilt or even anger, depending on the type of perfectionism. Implications for working with gifted students who show high levels of perfectionism are discussed.  相似文献   
72.
73.
74.
75.
76.
In light of recent theories of meaningful media that suggest a host of psychological benefits, the present study uniquely extends the boundaries of the effects of reality TV from simply offering pleasure, diversion, and amusement to its viewers to also providing deep insight and meaning. In particular, a between-subjects experiment (N = 143) examined differences in affective, cognitive, and motivational responses to lifestyle transforming versus game based reality programs. Findings indicate that lifestyle transforming reality TV produced stronger feelings of elevation and perceptions of the program as moving and thought-provoking than game reality TV, which in turn increased motivations for altruism. Avenues for future research and theoretical implications of meaningful and inspiring reality TV for positive psychology are discussed.  相似文献   
77.
V. K. Wadhawan 《Resonance》2005,10(11):27-41
A structure is an assembly that serves an engineering function. It is reasonable to expect that all engineering design should be smart, and not dumb. But one can still make a distinction between smartly designed structures and smart structures. The latter term has acquired a specific technical meaning over the last few decades. A smart structure is that which has the ability to respond adaptively in a pre-designed useful and efficient manner to changes in environmental conditions, including any changes in its own condition; the response is adaptive in the sense that two or more stimuli or inputs may be received as anticipated and yet there is a single response function as per design. Smartness ensures that the structure gives optimum performance under a variety of environmental conditions. While structures with some degree of smartness have been designed from times immemorial, the current activity and excitement in this field derives its impetus from the level of sophistication achieved in materials science, information technology, measurement science, sensors, actuators, signal processing, nanotechnology, cybernetics, artificial intelligence, and biomimetics.  相似文献   
78.
K. R. Shivanna 《Resonance》2016,21(11):1007-1018
After the pollen grain reaches the stigma through outsourced agents (pollinators), the next step before fertilization is to select the right type of pollen. Similar to a marriage in human beings, fiowering plants also have evolved elaborate screening process to select the right pollen grains and to reject the wrong ones. Even after initial screening for the right pollen, the pistil imposes a tough competition amongst them, comparable to a swayamvara of Indian mythology, to select the best available pollen. Flowering plants have evolved into a matriarchal society. The selection of the male partner is totally the prerogative of the mother (pistil); the boy (pollen grain) and the girl (ovule) has no say in this selection.  相似文献   
79.
Fitness is an important component of health, and obese adolescents regularly have poor fitness. Unfortunately, few have assessed the impact of community-based lifestyle interventions on multiple components of fitness. The purpose of this study was to assess the impact of participation in a community-based intervention involving adolescents and parents on multiple components of fitness of obese adolescents. In a within-subject, waitlist controlled clinical trial with 12 months follow-up in Western Australia, participants (n = 56) completed multiple fitness measures at baseline, immediately prior to beginning an 8-week intervention and at 3, 6 and 12 months during a maintenance period. Performance on the shuttle walk was improved immediately post-intervention (increase of 42.8 m, 95% CI: 7.5, 78.2) and at 12 months post-intervention (increase of 44.6 m, 95% CI: 1.3, 87.8) compared with pre-intervention. Muscle performance of quadriceps and deltoids were improved post-intervention (increase of 1.1 (95% CI: 0.1, 2.1) kg · F and 1.0 (0.02, 2.1) kg · F, respectively) and all muscle performance measures were improved at 12 months following the intervention. There were no changes in waist circumference. A community-based lifestyle programme such as Curtin University’s Activity, Food and Attitudes Program (CAFAP) may be a viable strategy for improving fitness in overweight adolescents.  相似文献   
80.
On the basis of the media coverage of the Olympic Games and the underlying strategic positioning, it is shown how important it is to illuminate this topic from an interdisciplinary perspective. Special emphasis is placed on the coupling of resource-based theory and network theories and illustrates particularly well the new interplay between management, organizational communication and mass communication. In the past decade the International Olympic Committee (IOC) has been transformed in ever increasing dimensions into a media corporation. The Olympic values and principles, innovations and creation potentials are the focal points of this strategy as tangible assets of the media.  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