全文获取类型
收费全文 | 174571篇 |
免费 | 7809篇 |
国内免费 | 155篇 |
出版年
2021年 | 1503篇 |
2020年 | 2786篇 |
2019年 | 3449篇 |
2018年 | 3544篇 |
2017年 | 4009篇 |
2016年 | 4623篇 |
2015年 | 3936篇 |
2014年 | 4813篇 |
2013年 | 23482篇 |
2012年 | 4532篇 |
2011年 | 3706篇 |
2010年 | 3920篇 |
2009年 | 4776篇 |
2008年 | 3954篇 |
2007年 | 3441篇 |
2006年 | 4040篇 |
2005年 | 4013篇 |
2004年 | 3491篇 |
2003年 | 3151篇 |
2002年 | 2943篇 |
2001年 | 3517篇 |
2000年 | 3369篇 |
1999年 | 3283篇 |
1998年 | 2848篇 |
1997年 | 2664篇 |
1996年 | 2571篇 |
1995年 | 2416篇 |
1994年 | 2383篇 |
1993年 | 2338篇 |
1992年 | 2702篇 |
1991年 | 2546篇 |
1990年 | 2391篇 |
1989年 | 2297篇 |
1988年 | 2259篇 |
1987年 | 2281篇 |
1986年 | 2245篇 |
1985年 | 2486篇 |
1984年 | 2549篇 |
1983年 | 2308篇 |
1982年 | 2380篇 |
1981年 | 2351篇 |
1980年 | 2182篇 |
1979年 | 2204篇 |
1978年 | 2195篇 |
1977年 | 2169篇 |
1976年 | 1942篇 |
1975年 | 2018篇 |
1974年 | 2069篇 |
1973年 | 1952篇 |
1972年 | 1543篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
891.
Effects of persuasive messages, responsibility denial (RD), and attitude-accessing on blood-giving attitudes, intentions, moral obligations, and behavior were examined. In Study 1, participants (n= 84) who heard a message emphasizing moral reasons for donating indicated a more favorable postmessage attitude and stronger moral obligation to donate than participants exposed to a message aimed at reducing fear, a combined moral and fear- reduction message, or no message. Combined message participants showed greatest intent to donate, yet only 14% of all participants attended a campus drive. In Study 2, low (n= 52) and high (n= 60) RD individuals heard the message arguments and were asked to access their attitudes. Low compared to high RD individuals stated a stronger sense of moral obligation, particularly when they accessed their thoughts relevant to blood donating, and behavioral intention, especially in the combined message condition. Few participants attended a blood drive (12.5%), yet most were low RD individuals from the nonaccessed attitude condition (83%). Results suggest that few individuals will engage in the altruistic act of blood donating, despite the experimental use of persuasive messages and accessing issue-relevant attitudes. 相似文献
892.
893.
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
894.
895.
Gordon Halliday Ph.D. 《Journal of Contemporary Psychotherapy》1992,22(3):173-181
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
896.
897.
898.
Tim Kasser M.A. 《Journal of Contemporary Psychotherapy》1992,22(1):51-65
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
899.
R C Kessler K S Kendler A Heath M C Neale L J Eaves 《Journal of personality and social psychology》1992,62(2):257-272
A survey of 821 same-sex female twin pairs from a population-based registry assessed 8 dimensions of social support and social integration. Twin analyses documented significant common environmental influences on 5 of these 8 measures and significant genetic influences on 5 of the 8. A decomposition of the multiplicative association between support and a measure of stressful life experiences in predicting depressed mood--an association typically interpreted as providing evidence for a stress-buffering effect of social support--shows clearly that it is the environmental and genetic factors that cause support, rather than support itself, that buffer the effects of stress on mood in most cases. We discuss the implications of this result for future research on the relationship between social support and psychopathology. 相似文献
900.
Coordination of knowledge in communication: effects of speakers' assumptions about what others know.
Two pairs of studies examined effects of perspective taking in communication, using a 2-stage methodology that first obtained people's estimates of the recognizability to others of specific stimuli (public figures and everyday objects) and then examined the effects of these estimates on message formulation in a referential communication task. Ss were good at estimating stimulus identifiability but were biased in the direction of their own knowledge. The amount of information in a referring expression varied inversely with the perceived likelihood that addresses could identify the target stimulus. However, effects were less strong than anticipated. Although communicators do take others' knowledge into account, the extent to which they do so involves a trade-off with other sorts of information in the communicative situation. 相似文献