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   33759篇
  免费   1148篇
  国内免费   17篇
  2019年   358篇
  2018年   445篇
  2017年   499篇
  2016年   570篇
  2015年   432篇
  2014年   475篇
  2013年   2651篇
  2012年   921篇
  2011年   945篇
  2010年   598篇
  2009年   643篇
  2008年   897篇
  2007年   870篇
  2006年   776篇
  2005年   731篇
  2004年   696篇
  2003年   746篇
  2002年   736篇
  2001年   811篇
  2000年   791篇
  1999年   603篇
  1998年   342篇
  1997年   347篇
  1992年   573篇
  1991年   549篇
  1990年   538篇
  1989年   535篇
  1988年   494篇
  1987年   513篇
  1986年   528篇
  1985年   573篇
  1984年   532篇
  1983年   498篇
  1982年   374篇
  1981年   414篇
  1980年   350篇
  1979年   549篇
  1978年   435篇
  1977年   389篇
  1976年   387篇
  1975年   506篇
  1974年   551篇
  1973年   578篇
  1972年   473篇
  1971年   453篇
  1970年   417篇
  1969年   432篇
  1968年   544篇
  1967年   511篇
  1966年   482篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
Performances of noncollege student young adults, middle-aged adults, and elderly adults were contrasted on word temporal memory and paired-associate learning tasks. A comparison group of college-student subjects was also evaluated on each task. Significant effects for age variation were found for each task. The age sensitivity for temporal memory conflicts with one of the criteria commonly established for determining the automaticity of a memory task. In addition, moderately high positive correlations were found for each age group between word temporal memory scores and paired-associate learning scores, implying the involvement of effortful processes over the adult lifespan in word temporal memory.  相似文献   
92.
93.
94.
95.
96.
ABSTRACT Two experiments tested the proposition that people use consensus-raising excuses more in private than in public when the audience has information that could refute subjects' claims about others In Experiment 1, subjects received success or failure feedback and made public or private attributions to ability, effort, task difficulty, and luck In Experiment 2, subjects received positive or negative feedback and evaluated themselves and others on the trait Task difficulty attributions and evaluations of others are consensus-raising measures Consistent with our hypothesis, subjects receiving negative feedback in Experiment 1 claimed that the task was more difficult, and in Experiment 2 evaluated the other more negatively in private than in public.  相似文献   
97.
98.
99.
This study examined attitudes among 290 residents of three villages in South-West England toward proposals to build a nuclear power station nearby. Respondents were split into four groups according to whether they were neutral or in favor of a new power station either locally or elsewhere in the UK (Group PN), against one locally but neutral or pro elsewhere (LO), or moderately (MO) or extremely (XO) against a new power station both locally and elsewhere. The perceived impact of a nuclear power station on local life was assessed by 30 items. The PN group expected most benefit or least damage on all 30 items. On a majority of items the mean ratings of the LO group resembled those of the XO's more than did those of the MO's. A stepwise discriminant analysis yielded two interpretable functions. The first reflected a trend over the groups in the order PN-LO-MO-XO and was marked particularly by concern with impact on personal peace of mind. The second fuction discriminated the LO's from the other groups, suggesting that they were relatively less concerned with specifically nuclear risks, but more concerned with environmental conservation.  相似文献   
100.
The individual deciding on a nuclear weapons production policy is faced with a dilemma in which a choice must be made to support one of several conflicting defense policies. In order to investigate the social-psychological variables that are related to armament policy decision making, a telephone survey was conducted in the City of St. Louis, Missouri. Adult subjects (N= 110) responded to questions concerned with cognitive, attitudinal, and emotional responses to nuclear arms. Participants were also asked to choose a weapons production policy for the United States under conditions of continued and decreased Soviet nuclear arms production. Results indicated that respondents decisions about nuclear weapons production were related to their support for deterrence, the availability of their nuclear-related images, their emotional response to nuclear war, their attributions of responsibility for the prevention of nuclear war, and their political party affiliation. Distinctions between antinuclear decision-makers and pronuclear decision-makers are discussed.  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