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   172282篇
  免费   7769篇
  国内免费   155篇
  180206篇
  2021年   1497篇
  2020年   2766篇
  2019年   3428篇
  2018年   3518篇
  2017年   3931篇
  2016年   4596篇
  2015年   3913篇
  2014年   4784篇
  2013年   23374篇
  2012年   4560篇
  2011年   3632篇
  2010年   3847篇
  2009年   4752篇
  2008年   3844篇
  2007年   3360篇
  2006年   3967篇
  2005年   3931篇
  2004年   3451篇
  2003年   3080篇
  2002年   2879篇
  2001年   3346篇
  2000年   3216篇
  1999年   3192篇
  1998年   2810篇
  1997年   2645篇
  1996年   2572篇
  1995年   2420篇
  1994年   2376篇
  1993年   2340篇
  1992年   2621篇
  1991年   2482篇
  1990年   2290篇
  1989年   2247篇
  1988年   2203篇
  1987年   2183篇
  1986年   2150篇
  1985年   2403篇
  1984年   2507篇
  1983年   2298篇
  1982年   2367篇
  1981年   2324篇
  1980年   2175篇
  1979年   2207篇
  1978年   2151篇
  1977年   2138篇
  1976年   1946篇
  1975年   1972篇
  1974年   2059篇
  1973年   1907篇
  1972年   1535篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
121.
This study examined the role of illness uncertainty in pain coping among women with fibromyalgia (FM), a chronic pain condition of unknown origin. Fifty-one FM participants completed initial demographic and illness uncertainty questionnaires and underwent 10-12 weekly interviews regarding pain, coping difficulty, and coping efficacy. Main outcome measures included weekly levels of difficulty coping with FM symptoms and coping efficacy. Multilevel analyses indicated that pain elevations for those high in illness uncertainty predicted increases in coping difficulty. Furthermore, when participants had more difficulty coping, they reported lower levels of coping efficacy. Results were consistent with hypothesized effects. Illness uncertainty accompanied by episodic pain negatively influenced coping efficacy, an important resource in adaptation to FM.  相似文献   
122.
123.
124.
125.
Two experiments examined repetition priming in the recognition of famous voices. In Experiment 1, reaction times for fame decisions to famous voice samples were shorter than in an unprimed condition, when voices were primed by a different voice sample of the same person having been presented in an earlier phase of the experiment. No effect of voice repetition was observed for non-famous voices. In Experiment 2, it was investigated whether this priming effect is voice-specific or whether it is related to post-perceptual processes in person recognition. Recognizing a famous voice was again primed by having earlier heard a different voice sample of that person. Although an earlier exposure to that person's name did not cause any priming, there was some indication of priming following an earlier exposure to that person's face. Finally, earlier exposure to the identical voice sample (as compared to a different voice sample from the same person) caused a considerable bias towards responding 'famous'-i.e. performance benefits for famous but costs for nonfamous voices. The findings suggestthat (1) repetition priming invoice recognition primarily involves the activation of perceptual representations of voices, and (2) it is important to determine the conditions in which priming causes bias effects that need to be disentangled from performance benefits.  相似文献   
126.
127.
128.
129.
130.
Do the conditions under which promises are made determine whether they ought to be kept? Philosophers have placed a number of conditions on promising which, they hold, must be met in order to make promise-keeping obligatory. In so doing, they have distinguished valid promises from invalid promises and justified promises from promises that are not justified. Considering such conditions, one by one, we argue that they are mistaken. In the first place, the conditions they lay down are not necessary for either valid or justified promise-making. In the second place, promises need not meet such conditions in order to create moral obligations. In general, such analyses of promising fail because they suffer from a confusion between promise-making and promise-keeping. Philosophers have wrongly supposed that obligations to keep promises are dependent upon, or derivable from, the quality of the promises themselves, at the time they are made, instead of focusing on conditions that must be satisfied at the time when promises are supposed to be kept. It is not the quality of a promise that determines an obligation to keep it but the rightness or wrongness of performing the promised act.  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