全文获取类型
收费全文 | 70765篇 |
免费 | 2879篇 |
国内免费 | 30篇 |
出版年
2020年 | 732篇 |
2019年 | 961篇 |
2018年 | 1265篇 |
2017年 | 1312篇 |
2016年 | 1406篇 |
2015年 | 1004篇 |
2014年 | 1211篇 |
2013年 | 5616篇 |
2012年 | 2232篇 |
2011年 | 2443篇 |
2010年 | 1508篇 |
2009年 | 1491篇 |
2008年 | 2138篇 |
2007年 | 2140篇 |
2006年 | 2024篇 |
2005年 | 1795篇 |
2004年 | 1662篇 |
2003年 | 1615篇 |
2002年 | 1688篇 |
2001年 | 2187篇 |
2000年 | 2132篇 |
1999年 | 1654篇 |
1998年 | 853篇 |
1997年 | 793篇 |
1996年 | 762篇 |
1995年 | 683篇 |
1993年 | 681篇 |
1992年 | 1356篇 |
1991年 | 1271篇 |
1990年 | 1242篇 |
1989年 | 1123篇 |
1988年 | 1087篇 |
1987年 | 1057篇 |
1986年 | 1144篇 |
1985年 | 1185篇 |
1984年 | 1013篇 |
1983年 | 916篇 |
1981年 | 678篇 |
1979年 | 1026篇 |
1978年 | 777篇 |
1975年 | 840篇 |
1974年 | 908篇 |
1973年 | 981篇 |
1972年 | 818篇 |
1971年 | 765篇 |
1970年 | 673篇 |
1969年 | 704篇 |
1968年 | 882篇 |
1967年 | 798篇 |
1966年 | 678篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
122.
F. . W. Jones A. J. Wills I. P. L. McLaren 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1998,51(1):33-58
Although it is currently popular to model human associative learning using connectionist networks, the mechanism by which their output activations are converted to probabilities of response has received relatively little attention. Several possible models of this decision process are considered here, including a simple ratio rule, a simple difference rule, their exponential versions, and a winner-take-all network. Two categorization experiments that attempt to dissociate these models are reported. Analogues of the experiments were presented to a single-layer, feed-forward, delta-rule network. Only the exponential ratio rule and the winner-take-all architecture, acting on the networks' output activations that corresponded to responses available on test, were capable of fully predicting the mean response results. In addition, unlike the exponential ratio rule, the winner-take-all model has the potential to predict latencies. Further studies will be required to determine whether latencies produced under more stringent conditions conform to the model's predictions. 相似文献
123.
Aaronette M. White Michael J. Strube Sherri Fisher 《Psychology of women quarterly》1998,22(2):157-175
A Black feminist model was used to investigate rape myth acceptance between African American antirape activists and a comparison group of nonactivists using Cross's (1991) racial identity model and Downing and Roush's (1985) feminist identity model. As predicted, activists rejected rape myths more than nonactivists; the earlier stages of both models were associated with rape myth acceptance; the later stages were associated with rape myth rejection; and activists evidenced more sociopolitical maturity (race and gender consciousness) than nonactivists. The findings suggest that researchers may need to investigate to what degree rape myth acceptance serves an overarching system of social domination where racism and sexism overlap. 相似文献
124.
125.
126.
Zafar Husain Mumin Dayan Raghuvar Dutt Pathak Markus Langer Cornelius J. König 《International Journal of Selection & Assessment》2018,26(2-4):191-195
Applicants from different cultures vary in their self-presentation behavior during job interviews. This study investigates self-presentation behavior in the United Arab Emirates (UAE), the second largest economy in the Arab world. Specifically, it examines self-presentation behavior of applicants from the UAE and compares it to the behavior of American, European, and Chinese applicants from previous studies. The randomized response technique was used to gather self-presentation prevalence data of 111 UAE applicants regarding self-presentation behavior in their last job interview. Prevalence rates were lower than those from the United States and from China but higher than those from Iceland and from Switzerland. Results indicate that though UAE culture values modesty, UAE applicants still engage in distinct self-presentation behavior. 相似文献
127.
The purpose of this meta-analysis of randomized controlled trials was to evaluate the efficacy of psychological interventions for adults with noncancerous chronic low back pain (CLBP). The authors updated and expanded upon prior meta-analyses by using broad definitions of CLBP and psychological intervention, a broad data search strategy, and state-of-the-art data analysis techniques. All relevant controlled clinical trials meeting the inclusion criteria were identified primarily through a computer-aided literature search. Two independent reviewers screened abstracts and articles for inclusion criteria and extracted relevant data. Cohen's d effect sizes were calculated by using a random effects model. Outcomes included pain intensity, emotional functioning, physical functioning (pain interference or pain-specific disability, health-related quality of life), participant ratings of global improvement, health care utilization, health care provider visits, pain medications, and employment/disability compensation status. A total of 205 effect sizes from 22 studies were pooled in 34 analyses. Positive effects of psychological interventions, contrasted with various control groups, were noted for pain intensity, pain-related interference, health-related quality of life, and depression. Cognitive-behavioral and self-regulatory treatments were specifically found to be efficacious. Multidisciplinary approaches that included a psychological component, when compared with active control conditions, were also noted to have positive short-term effects on pain interference and positive long-term effects on return to work. The results demonstrated positive effects of psychological interventions for CLBP. The rigor of the methods used, as well as the results that reflect mild to moderate heterogeneity and minimal publication bias, suggest confidence in the conclusions of this review. 相似文献
128.
A theoretical structure for multiattribute decision making is presented, based on a dynamical system for interactions in a neural network incorporating affective and rational variables. This enables modeling of problems that elude two prevailing economic decision theories: subjective expected utility theory and prospect theory. The network is unlike some that fit economic data by choosing optimal weights or coefficients within a predetermined mathematical framework. Rather, the framework itself is based on principles used elsewhere to model many other cognitive and behavioral data, in a manner approximating how humans perform behavioral functions. Different, interconnected modules within the network encode (a) attributes of objects among which choices are made, (b) object categories, (c) and goals of the decision maker. An example is utilized to simulate the actual consumer choice between old and new versions of Coca-Cola. Potential applications are also discussed to market decisions involving negotiations between participants, such as international petroleum traders. 相似文献
129.
130.
Suicide and homicide rates by age were analyzed for Canada and the United States, indicating that suicide is higher in Canada and that homicide is higher in the United States. Results indicated a positive association between homicide and suicide rates in the United States but these two rates of death were not significantly associated in Canada. Holinger (1987) had associated the relative size of the cohort to the rates of suicide and homicide in young people in the United States. The more current data in both countries did not support Holinger's results. Using the measure devised by Easterlin (1980) and Ahlburg and Schapiro (1984) –that is, the proportion of youths aged 15–24 relative to adults aged 25–64–the correlation between the size of the youth cohort and the suicide rate of youths aged 15–24 was negative. It is concluded that the two patterns in these two countries may be explained from a historical perspective. 相似文献