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   175842篇
  免费   8009篇
  国内免费   160篇
  2020年   2797篇
  2019年   3463篇
  2018年   3563篇
  2017年   3983篇
  2016年   4663篇
  2015年   3934篇
  2014年   4828篇
  2013年   23535篇
  2012年   4586篇
  2011年   3698篇
  2010年   3911篇
  2009年   4777篇
  2008年   3953篇
  2007年   3479篇
  2006年   4036篇
  2005年   4017篇
  2004年   3512篇
  2003年   3173篇
  2002年   2944篇
  2001年   3475篇
  2000年   3327篇
  1999年   3275篇
  1998年   2842篇
  1997年   2706篇
  1996年   2612篇
  1995年   2432篇
  1994年   2401篇
  1993年   2348篇
  1992年   2716篇
  1991年   2555篇
  1990年   2406篇
  1989年   2311篇
  1988年   2287篇
  1987年   2272篇
  1986年   2287篇
  1985年   2490篇
  1984年   2588篇
  1983年   2357篇
  1982年   2390篇
  1981年   2363篇
  1980年   2206篇
  1979年   2276篇
  1978年   2214篇
  1977年   2173篇
  1976年   1988篇
  1975年   2074篇
  1974年   2136篇
  1973年   2030篇
  1972年   1627篇
  1971年   1550篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
992.
This article addresses the relationship between religious affiliation and a very specific form of firearms ownership, that is, handgun ownership. Literature is reviewed relative to explanations of gun ownership. A test of the hypothesized relationship between religious affiliation and handgun ownership demonstrated a statistically significant ( p < 0.03) association. Protestants were found to have a disproportionately high level of handgun ownership compared to other religious groups. Speculation for this finding is reviewed relative to other recent research on this topic.  相似文献   
993.
The prevalence of regular smoking increases rapidly during adolescence. We applied modeling methods from the study of epidemic infectious disease to smoking behavior. Our "epidemic" models dealt with the process of transition among four states: nonsmoker (susceptible), trier (exposed), regular smoker (infected), and ex-smoker (recovered). The best fitting model was one in which the transition from nonsmoker to trier was a social contagion process where nonsmokers contacted either triers or regular smokers. All other transitions were treated as constant rate processes in which a constant proportion of eligible individuals made the transition in a given year. The recursive equation model embodying these assumptions was able to predict accurately the proportion of adolescents in each state in Grades 6–11. Our results support a "stage" model of smoking, suggesting that different psychological and physiological processes are involved in the initiation of smoking than in developing a habit of regular smoking. A possible sex difference was found in the non-contact transition between trier and smoker states, with the transition being more probable in females than in males.  相似文献   
994.
995.
The concept of developmental amnesia is proposed to describe the impairment of normal memories during a person's school age life. One hundred psychotherapy patients were interviewed and the age of earliest memories ranged from 1–12 years, with a mode of 5 years. Memory was continuous for 53% of patients by 1st grade, while 18% reported life memory was still episodic at age 18 or later. Parental alcohol problems were associated with delay of continuous memories.  相似文献   
996.
997.
998.
Since valuing is a process grounded in the organizational tendency of human behavior, the characteristics of a highly valued object should reflect the experience of the individual who selects it. This research compared the favorite songs of fourteen individuals diagnosed with schizophrenia to their inner experience as assessed in a standard interview. Many relationships were revealed between the two, often pertaining to important issues identified in theories of schizophrenia. Results may have therapeutic applications and shed light on processes through which psychological difficulties persist.  相似文献   
999.
This article comments on a recent article by Heatherton, Herman, and Polivy (1991) in which they suggest that ego threats are a prerequisite to affectively induced disinhibition of food intake in restrained eaters and current dieters. In contrast, the present review suggests that mood induction procedures that involve no apparent threat (e.g., viewing a frightening film) can also prompt disinhibition in restrained eaters. Thus, any mood induction procedure that does not directly physically threaten the S may disinhibit restrained eaters. It is concluded that recommendations to focus future research on ego threats are premature and may serve to obscure the mechanisms by which changes in affective state influence food intake in dieters.  相似文献   
1000.
That observers tend to agree in their ratings of a target even if they have never interacted with that target has been called consensus at zero acquaintance. The basic finding that consensus is highest for judgments concerning a target's degree of extraversion (EV) and somewhat weaker for judgments of conscientiousness is replicated. Several potential observable cues that might be used by judges when rating targets are examined. The finding that ratings of physical attractiveness correlate with judgments of EV is replicated. In Study 1, rapid body movements and smiling were also found to correlate with EV judgments. The level of consensus declined when initially unacquainted Ss interacted one-on-one (Study 2), but did not decline--and even increased--when Ss interacted in a group (Study 3). Ss judged as extraverted at zero acquaintance were also seen as extraverted after interacting with others.  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