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   3507篇
  免费   160篇
  3667篇
  2022年   25篇
  2021年   30篇
  2020年   64篇
  2019年   77篇
  2018年   90篇
  2017年   111篇
  2016年   111篇
  2015年   96篇
  2014年   92篇
  2013年   460篇
  2012年   157篇
  2011年   171篇
  2010年   97篇
  2009年   98篇
  2008年   137篇
  2007年   124篇
  2006年   131篇
  2005年   129篇
  2004年   120篇
  2003年   104篇
  2002年   125篇
  2001年   54篇
  2000年   46篇
  1999年   55篇
  1998年   53篇
  1997年   46篇
  1996年   50篇
  1995年   36篇
  1994年   35篇
  1993年   48篇
  1992年   37篇
  1991年   45篇
  1990年   30篇
  1989年   35篇
  1988年   35篇
  1987年   32篇
  1986年   28篇
  1985年   43篇
  1984年   32篇
  1983年   39篇
  1982年   44篇
  1981年   47篇
  1980年   28篇
  1979年   26篇
  1978年   30篇
  1977年   29篇
  1976年   29篇
  1975年   15篇
  1974年   15篇
  1973年   17篇
排序方式: 共有3667条查询结果,搜索用时 0 毫秒
951.
Bernstein  Judith H.  Shuval  Judith T. 《Sex roles》1999,40(1-2):1-23
The immigration of more than 13,000 physicians,over half of whom were women, from the former SovietUnion to Israel during the first half of the 1990's,provided an opportunity to investigate genderdifferences in the occupational integration of a largegroup of professionals. The present paper presentsfindings from a three-stage cohort study of 333 formerSoviet physicians covering their first five years in Israel, and from in-depth interviews withtwenty-three immigrant physicians. After two andone-half years in Israel (Stage 2), male respondentswere more likely to be working in their profession thanfemale respondents, who were more likely to beunemployed. After five years (Stage 3), men and womenwere equally likely to be working as physicians, but themen were significantly more likely to be in residency programs to attain specialty status, while thewomen were more likely to be working as generalpractitioners. The narratives suggest that genderdifferences in professional behavior were intricatelyrelated to traditional gender-related family normswhich persisted throughout the Communist era. Thetendency for some of the women to delay resuming theircareer in Israel is seen as adaptive in the context of migration, because it provides continuity ofself-identity and family norms. Furthermore, women whochose to work as general practitioners saw this work asa continuation of their work in the USSR. After five years in Israel, there were no genderdifferences in work satisfaction, self-esteem, mood andgeneral adaptation to life in Israel.  相似文献   
952.
The authors surveyed 86 pregnant women (73%White, 8% Asian, 7% African American, 6% Hispanic, and1% Native American) to examine individual andorganizational factors associated with organizationalcommitment and planned timing of their maternity leavesand return to work after childbirth. Women whoseorganizations offered guaranteed jobs after childbirthplanned to work later into their pregnancies and toreturn to work sooner after childbirth. Women whoperceived supportive work-family cultures were morecommitted to their organizations and planned to returnmore quickly after childbirth than women who perceived less supportive cultures. Also, women with lesstraditional attitudes toward parenting planned to worklater into their pregnancies and return to work soonerafter childbirth.  相似文献   
953.
To evaluate an innovative counselling service, two groups of children of divorce were studied: one that was receiving counselling and a non-counselled group. The differences between the two groups were examined in relation to such areas as self-esteem and their relationships with their parents prior and subsequent to separation.  相似文献   
954.
955.
This experiment addressed (1) the importance of conjunctive stimulus presentation for morphological plasticity of cerebellar Purkinje cells and inhibitory interneurons and (2) whether plasticity is restricted to the spiny branches of Purkinje cells, which receive parallel fiber input. These issues were investigated in naive rabbits and in rabbits that received paired or unpaired presentations of the conditioned stimulus (CS) and unconditioned stimulus (US). To direct CS input to the cerebellar cortex, pontine stimulation served as the CS. Air puffs to the cornea served as the US. Paired condition rabbits received pontine stimulation for 350 msec paired with a coterminating 100-msec air puff. Unpaired condition rabbits received the same stimuli in a pseudorandom order at 1- to 32-sec intervals. Rabbits were trained for a mean of 12 days. Naive rabbits received no treatment. In Golgi-stained Purkinje neurons in lobule HVI, total dendritic length, main branch length, total spiny branch length, and number of spiny branch arbors were all greater in the naive group than in the paired and unpaired groups, which did not differ. No differences were found between the hemispheres ipsilateral and contralateral to the trained eye. The dendritic length and number of branches for inhibitory interneurons did not differ across groups. The Purkinje cell morphological changes detected with these methods do not appear to be uniquely related to the conjunctive activation of the CS and US in the paired condition.  相似文献   
956.
The Psychological Record - The purpose of this experiment was to examine the blocking effect within the context of a stimulus equivalence paradigm. Ten subjects were provided with a prior history...  相似文献   
957.
Perceived family favouritism and disfavouritism were explored in relation to college students' adjustment, affect and family process. The participants included 127 males and females and 62 of their siblings (age range 18–32 years). Sixty-five per cent of the participants reported favouritism in their families; 24% reported disfavouritism. There was modest sibling agreement on the presence of family favouritism/disfavouritism as well as on who in the family was doing the favouring or disfavouring. The presence of disfavouritism was found to relate to lower family cohesion, higher family disengagement and higher family conflict. Participants who perceived themselves to be disfavoured also reported more frequent shame and more intense fear. Participants who perceived themselves to be favoured reported less frequent shame. Results are discussed in the context of the empirical and clinical literature on sibling and family interaction and the differential treatment of siblings by parents. A clinical case example is provided to illustrate the results and to highlight the implications for family therapy.  相似文献   
958.
Anne Foerst 《Zygon》1998,33(3):455-461
This is a reply to comments on my paper Cog, a Humanoid Robot, and the Questions of the Image of God ; one was written by Mary Gerhart and Allan Melvin Russell, and another one by Helmut Reich. I will start with the suggested analogy of the relationship between God and us and the one between us and the humanoid robot Cog and will show why this analogy is not helpful for the dialogue between theology and artificial intelligence (AI). Such a dialogue can succeed only if both our fascination for humanoids and our fear of them are equally accepted. Any avoidance of these emotions, as well as any rejection of the possibility that Cog might one day be humanlike, destroy the dialogue. The interpretation of both scientific theories and religious metaphors as stories replaces seemingly "rational" arguments with the confession of the respective commitments to a body of stories and opens up a space for exchange and friendship between AI-researchers and theologians—an option that usually remains closed.  相似文献   
959.
960.
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