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   124774篇
  免费   1909篇
  国内免费   238篇
教育   86984篇
科学研究   13482篇
各国文化   2047篇
体育   9450篇
综合类   172篇
文化理论   1141篇
信息传播   13645篇
  2021年   958篇
  2020年   1699篇
  2019年   2645篇
  2018年   3146篇
  2017年   3434篇
  2016年   3492篇
  2015年   2397篇
  2014年   3280篇
  2013年   27982篇
  2012年   2430篇
  2011年   2760篇
  2010年   2388篇
  2009年   2674篇
  2008年   2455篇
  2007年   2140篇
  2006年   2431篇
  2005年   2397篇
  2004年   3050篇
  2003年   2413篇
  2002年   2203篇
  2001年   2019篇
  2000年   1663篇
  1999年   1558篇
  1998年   1500篇
  1997年   1555篇
  1996年   1743篇
  1995年   1524篇
  1994年   1512篇
  1993年   1505篇
  1992年   1503篇
  1991年   1424篇
  1990年   1407篇
  1989年   1313篇
  1988年   1185篇
  1987年   1107篇
  1986年   1135篇
  1985年   1397篇
  1984年   1276篇
  1983年   1277篇
  1982年   1268篇
  1981年   1185篇
  1980年   1178篇
  1979年   1230篇
  1978年   1211篇
  1977年   1125篇
  1976年   1001篇
  1975年   814篇
  1974年   804篇
  1973年   771篇
  1971年   628篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
912.
913.
914.
  • Resilience in the publishing industry can be viewed through a framework of assessing five capitals or assets: human, social, physical, financial, and natural capital.
  • A resilient system requires four properties: robustness, redundancy, resourcefulness, and rapidity, and scholarly publishing can be seen to have some element of each.
  • The ability to thrive in adversity and bounce back is not found in all parts of the publishing system, with those in the Global South disproportionately disadvantaged.
  • The positive changes introduced in the past year need to be retained and elements of inequality and exclusion removed to ensure future resilience and sustainability.
  相似文献   
915.
916.
917.
918.
919.
Research suggests that spatial ability may predict success in complex disciplines including anatomy, where mastery requires a firm understanding of the intricate relationships occurring along the course of veins, arteries, and nerves, as they traverse through and around bones, muscles, and organs. Debate exists on the malleability of spatial ability, and some suggest that spatial ability can be enhanced through training. It is hypothesized that spatial ability can be trained in low-performing individuals through visual guidance. To address this, training was completed through a visual guidance protocol. This protocol was based on eye-movement patterns of high-performing individuals, collected via eye-tracking as they completed an Electronic Mental Rotations Test (EMRT). The effects of guidance were evaluated using 33 individuals with low mental rotation ability, in a counterbalanced crossover design. Individuals were placed in one of two treatment groups (late or early guidance) and completed both a guided, and an unguided EMRT. A third group (no guidance/control) completed two unguided EMRTs. All groups demonstrated an increase in EMRT scores on their second test (P < 0.001); however, an interaction was observed between treatment and test iteration (P = 0.024). The effect of guidance on scores was contingent on when the guidance was applied. When guidance was applied early, scores were significantly greater than expected (P = 0.028). These findings suggest that by guiding individuals with low mental rotation ability “where” to look early in training, better search approaches may be adopted, yielding improvements in spatial reasoning scores. It is proposed that visual guidance may be applied in spatial fields, such as STEMM (science, technology, engineering, mathematics and medicine), surgery, and anatomy to improve student's interpretation of visual content. Anat Sci Educ. © 2018 American Association of Anatomists.  相似文献   
920.
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