全文获取类型
收费全文 | 43170篇 |
免费 | 1660篇 |
国内免费 | 10篇 |
专业分类
44840篇 |
出版年
2019年 | 567篇 |
2018年 | 718篇 |
2017年 | 774篇 |
2016年 | 817篇 |
2015年 | 579篇 |
2014年 | 725篇 |
2013年 | 3482篇 |
2012年 | 1314篇 |
2011年 | 1398篇 |
2010年 | 880篇 |
2009年 | 869篇 |
2008年 | 1253篇 |
2007年 | 1273篇 |
2006年 | 1209篇 |
2005年 | 1067篇 |
2004年 | 1032篇 |
2003年 | 987篇 |
2002年 | 1006篇 |
2001年 | 1170篇 |
2000年 | 1109篇 |
1999年 | 865篇 |
1998年 | 548篇 |
1997年 | 455篇 |
1996年 | 459篇 |
1992年 | 680篇 |
1991年 | 678篇 |
1990年 | 639篇 |
1989年 | 656篇 |
1988年 | 639篇 |
1987年 | 618篇 |
1986年 | 643篇 |
1985年 | 707篇 |
1984年 | 592篇 |
1983年 | 583篇 |
1982年 | 514篇 |
1981年 | 487篇 |
1979年 | 639篇 |
1978年 | 533篇 |
1977年 | 455篇 |
1976年 | 497篇 |
1975年 | 566篇 |
1974年 | 621篇 |
1973年 | 642篇 |
1972年 | 513篇 |
1971年 | 449篇 |
1970年 | 436篇 |
1969年 | 471篇 |
1968年 | 561篇 |
1967年 | 464篇 |
1966年 | 472篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
171.
Summary The interactive-activation model postulates (a) that activation at the letter level leads automatically to activation at the word level, (b) that the word-superiority effect reflects reactivation of letters by the word they spell, and (c) that subjects identify words on the basis of information obtained from separate letter-position channels. In the first two experiments, we showed words in upper, lower, or mixed case: the word-superiority effect was reduced when words were presented in mixed-case letters, presumably because extra-letter information is lost with mixed-case presentation; i.e., postulate (c) is wrong. The third experiment showed that when the letters of a word are rotated 180° subjects can identify the letters without producing a word-superiority effect; i.e., one of postulates (a) and (b) is wrong. In Experiments 4 and 5, we trained subjects to name words presented in inverted letters; training was more effective when subjects could exploit bigram information in addition to letter-channel information; i.e., reading inverted text is based on extra-letter-feature information, not on a general skill in rotating letters. Taken together, our data deny three of the interactive-activation model's major postulates. We offer some suggestions for future versions of the model.
Electronic mail: Userid: MEWHORTD; Nodeid: QUCDN; Domain: BITNET 相似文献
172.
173.
James B. Wade Ph.D. Robert P. Hart Ph.D. Donald F. Kirby M.D. Peter R. Mills M.D. 《Group》1988,12(3):172-178
This study evaluated the efficacy of the Garren-Edwards Behavior Modification Program, which uses the Garren-Edwards Gastric Bubble as an adjunct to treatment. Group therapy sessions were conducted with 23 morbidly obese subjects for 6 months on a biweekly basis. Each therapy session used a five-stage problem-solving sequence designed to facilitate adaptive behavioral alternatives. In evaluating weight change, a multivariate analysis of variance was conducted along with two preplanned orthogonal comparisons. Patients lost significant amounts of weight between initial to 3-month (p<.0001) and 3- to 6-month intervals (p<0001). A similar treatment effect was noted in an additional sample of 24 morbidly obese subjects following 3 months of treatment (p<0005). The findings support the value of longer goal-oriented programs in promoting continued weight loss. Implications for treatment process and therapist interventions prompted by this new format are discussed. 相似文献
174.
J L Gariépy K E Hood R B Cairns 《Journal of comparative psychology (Washington, D.C. : 1983)》1988,102(4):392-399
This research was designed to investigate development and behavioral mediation in lines of ICR mice that have been selectively bred for aggressive behavior. General behavioral reactivity and behavioral immobility have been implicated as potential mediators by prior analyses of preattack interactions. To evaluate the separate roles of these dispositions, the emergence of attacks in genetically selected lines was tracked for 11 years by three levels of analysis: over successive generations, over development, and over dyadic interactions. Convergent outcomes were observed in all three levels with respect to two findings: (a) Robust line differences were obtained in attack behaviors, and (b) strong associations were found between line differences in attacks and line differences in behavioral immobility. Conversely, all three levels of analysis indicated a weak and inconsistent association between line differences in attacks and measures of social and nonsocial reactivity. 相似文献
175.
U W Huck R D Lisk E J Parente 《Journal of comparative psychology (Washington, D.C. : 1983)》1988,102(4):388-391
After 12-15 ejaculatory series, each consisting of several short intromissions (2- to 3-s vaginal penetration) and an ejaculation, male golden hamsters adopt an altered copulatory pattern consisting of long intromissions (5- to 25-s penetration with intravaginal thrusting). Receptivity declines and the tendency for the female to attack the male increases at about the time of this shift in copulatory pattern. Because the mean interintromission interval (III) between short intromissions is about 8 s compared to 100 s between long intromissions, it is possible that females detect this difference and adjust their mating accordingly. When the III between short intromissions from a rested male was experimentally increased to 100 s by use of a halter and lead device, the duration of lordosis was significantly less than that displayed by females paired with control males (8-s III) and virtually the same as that displayed by females paired with males that produced only long intromissions. This suggests that the female uses the temporal patterning of intravaginal stimulation as one criterion for terminating mating with a particular male. 相似文献
176.
William H. Hendrix R. Stephen Cantrell Robert P. Steel 《Journal of business and psychology》1988,3(1):67-73
Business organizations have become interested in recent years in the role of social support in reducing the negative effect of stress. The purpose of this research is to examine the effects of two types of social support (i.e., job and life support) on the relationships between job and life stress and burnout. Participants consisted of 270 males and 254 females. For both males and females job stress and life stress correlate positively with burnout, while job and life support were negatively correlated with burnout. The hypothesis that social support would moderate stress-burnout relationships was not supported. Neither job support nor life support moderated job stress or life stress-burnout relationships. Females exhibited significantly higher levels of burnout, job stress, and life stress than males; however, there was no difference between males and females in the amount of social support received. 相似文献
177.
Robert J. Sternberg 《Applied cognitive psychology》1988,2(4):231-255
This article describes how cognitive theory can be applied to the testing and teaching of intelligence. The article is divided into three main parts. The first part describes how the study of intelligence, traditionally an area that has been viewed as under the purview of differential psychology, has come squarely into the purview of cognitive psychology. The second part describes how the testing and teaching of intelligence, which in the past have been largely atheoretical, have been transformed into theoretically based enterprises guided by the theories of cognitive psychology. The last part describes a particular theory of intelligence, the triarchic theory, and how it has been applied to the problems of testing and teaching intelligence. It is concluded that cognitive psychology has given the study of intelligence a ‘new lease on life’, and that the testing and teaching of intelligence can and should be viewed as a primary focus of application for the principles of cognitive psychology. 相似文献
178.
James E. McClellan Jr. 《Studies in East European Thought》1988,35(1):39-56
A philosophical movement, correctly called logical pragmatism, is growing up around the philosophy of W. V. O. Quine, Soviet scholars follow this development with clear and well-grounded understanding of the origins and tenets of the system. This essay continues the dialogue between contemporary Marxism-Leninism and logical pragmatism recommended by Soviet scholars.A Russian translation of this article is being published inFilosofskie nauki (Moscow). 相似文献
179.
Attitudes toward older and younger adults: a meta-analysis 总被引:3,自引:0,他引:3
Attitudes toward the elderly have been examined in a number of empirical studies, yet the question of whether the elderly are viewed more negatively than younger persons has not been resolved. A meta-analysis of the literature was conducted to examine this question; results demonstrated that attitudes toward the elderly are more negative than attitudes toward younger people. However, smaller differences between the evaluations of elderly and younger targets were found when (a) the study used measures of personality traits (compared with measures of competence), (b) there were a larger number of dependent measures included in the effect size, (c) specific information was provided about the target person (compared with when a general target such as old person was used), and (d) a between-subjects design (compared with a within-subjects design) was used. These results support Lutsky's (1981) conclusion that age, in and of itself, seems to be less important in determining attitudes toward the elderly than other types of information. The methodological limitations within the literature and a need to consider multiple components of attitudes toward older individuals are discussed. 相似文献
180.
Richard Rogers J. Roy Gillis Susan E. Dickens Christopher D. Webster 《Behavioral sciences & the law》1988,6(4):487-495
Clinical judgments on the treatability and prognosis of mentally disordered offeenders (MDO) may strongly influence legal dispositions and the availability of treatment resources. This study examined 1,238 discharge summaries for MDOs referred for court assessments. Psychiatrists evidenced marked variability in how often they recommended treatment and how frequently they judged patients to have a poor prognosis. Two logit analyses suggested that diagnosis and consultation by other clinicians were associated with (a) treatment recommendations (i.e., Axis I diagnosis and social work consultations) and (b) prognosis (i.e., Axis II diagnosis and psychology consultations). 相似文献