全文获取类型
收费全文 | 22125篇 |
免费 | 114篇 |
国内免费 | 2篇 |
出版年
2024年 | 4篇 |
2023年 | 13篇 |
2022年 | 10篇 |
2021年 | 29篇 |
2020年 | 57篇 |
2019年 | 58篇 |
2018年 | 3521篇 |
2017年 | 2860篇 |
2016年 | 2297篇 |
2015年 | 243篇 |
2014年 | 130篇 |
2013年 | 275篇 |
2012年 | 651篇 |
2011年 | 2470篇 |
2010年 | 2571篇 |
2009年 | 1531篇 |
2008年 | 1768篇 |
2007年 | 2256篇 |
2006年 | 109篇 |
2005年 | 279篇 |
2004年 | 228篇 |
2003年 | 176篇 |
2002年 | 131篇 |
2001年 | 64篇 |
2000年 | 72篇 |
1999年 | 42篇 |
1998年 | 45篇 |
1997年 | 45篇 |
1996年 | 35篇 |
1995年 | 24篇 |
1994年 | 18篇 |
1993年 | 25篇 |
1992年 | 21篇 |
1991年 | 17篇 |
1990年 | 27篇 |
1989年 | 12篇 |
1988年 | 17篇 |
1987年 | 5篇 |
1986年 | 10篇 |
1985年 | 8篇 |
1983年 | 9篇 |
1982年 | 14篇 |
1981年 | 8篇 |
1980年 | 8篇 |
1979年 | 7篇 |
1978年 | 7篇 |
1976年 | 6篇 |
1973年 | 3篇 |
1971年 | 3篇 |
1968年 | 3篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
Predictors and outcomes of workplace violence and aggression 总被引:8,自引:0,他引:8
The authors developed and assessed the psychometric properties of an instrument measuring risk for workplace violence and expanded a model linking (a) risk and experience of violence and aggression from the public and (b) experience of aggression from coworkers to emotional well-being, psychosomatic well-being, affective commitment, and turnover intentions. Using data from 254 employees representing 71 different occupations, the measure demonstrated acceptable within-occupation and 1-month test-retest reliability. The data supported the model and showed that public-initiated violence and aggression and coworker-initiated aggression were differentially associated with personal and organizational outcomes. 相似文献
122.
123.
In the first part of this paper we review evidence suggesting that there exists a mechanism that selects input on the basis of its similarity to the required action. This response-based input selection differs from the more established space- and object-based input selection in that it is not constrained by the structure of the input. Our evidence suggests that the two-choice Stroop effect is caused by this response-based selection mechanism. By contrast, it is known that the flanker effect is determined by the space- and object- based selection mechanisms. We explore whether the conflict resolution of the Stroop and flanker tasks is different as well by embedding these two tasks in a PRP (Psychological Refractory Period) paradigm. We show that the Stroop and the PRP effects are additive whereas the flanker and the PRP effects are underadditive, suggesting that the processes in charge of the conflict resolution in the Stroop and the flanker tasks are indeed different. We discuss possible reasons for this difference, and discuss possible ways in which the response-based mechanism can be implemented in information processing models. 相似文献
124.
This article reviews relevant literature as to the labor pool of qualified individuals with disabilities and employment in information technology (IT) sector jobs. First, the article reviews the empirical literature on barriers to employment in IT for persons with disabilities. The examination then is extended to studies of barriers to employment for individuals with disabilities in other employment sectors. Findings illustrate the limited experiences that IT and non-IT companies have in employing and accommodating employees with disabilities. Implications are discussed for enhancing the employment of qualified workers with disabilities in IT through research, education, training, and mentoring programs. 相似文献
125.
The objective of this research was to test substance-related and non-substance-related psychiatric disorders as predictors of attempted suicide among adolescents. Ninety-six psychiatrically disordered suicide attempters were matched one-to-one to 96 psychiatrically disordered non-attempters on age, race, gender, and the presence/absence of major depression. Conditional logistic regression was used to test psychiatric risk factors for their power to predict attempted suicide among adolescents. Bipolar disorder, cocaine use disorders, and conduct disorder were found to be predictive of attempted suicide in univariate testing. Bipolar disorder, inhalant use disorders, cocaine use disorders, and hallucinogen use disorders were found to be predictive of attempted suicide, after adjusting for all other covariates. Loglinear analyses revealed high odds ratios associated with the comorbidities of alcohol use disorder with conduct disorder and drug use disorders with conduct disorder in both groups. Higher rates of cocaine use disorder/conduct disorder, hallucinogen use disorder/conduct disorder, and alcohol use disorder/ conduct disorder were found among suicide attempters. Evaluation of these particular comorbid conditions should be part of the adolescent suicide risk assessment. 相似文献
126.
127.
Numerous previous investigators have explained species differences in spatial memory performance in terms of differences
in foraging ecology. In three experiments we attempted to extend these findings by examining the extent to which the spatial
memory performance of echidnas (or "spiny anteaters") can be understood in terms of the spatio-temporal distribution of their
prey (ants and termites). This is a species and a foraging situation that have not been examined in this way before. Echidnas
were better able to learn to avoid a previously rewarding location (to "win-shift") than to learn to return to a previously
rewarding location (to "win-stay"), at short retention intervals, but were unable to learn either of these strategies at retention
intervals of 90 min. The short retention interval results support the ecological hypothesis, but the long retention interval
results do not.
Electronic Publication 相似文献
128.
Kevin?D.?BeckEmail author Francis?X.?Brennan Richard?J.?Servatius 《Integrative psychological & behavioral science》2002,37(2):128-139
In this study we assessed habituation and sensitization of the acoustic startle response (ASR) to discern whether intense,
inescapable stress affects nonassociative learning differently in male and female rats. Rats were inescapably stressed 2 hours
per day over 3 consecutive days. ASR magnitudes were measured at several times post-stress (1, 4, 8, and 15 days after cessation).
Females generally showed greater ASR magnitudes (compared to males), but both sexes exhibited short and long-term habituation
across the testing days. ASR magnitudes were only affected by stress in male subjects. The effect in males was an increase
in short-term sensitization of the ASR on post-stress day-4. The results suggest that stressed males and females react differently
to ASR testing, in that stress males appear to develop an exaggerated ASR response over repeated test sessions due to short-term
sensitization. The source of the short-term sensitization is discussed with regards to possible stress-induced enhanced contextual
learning during ASR testing on post-stress day-1. 相似文献
129.
The rapid detection of facial expressions of anger or threat has obvious adaptive value. In this study, we examined the efficiency of facial processing by means of a visual search task. Participants searched displays of schematic faces and were required to determine whether the faces displayed were all the same or whether one was different. Four main results were found: (1) When displays contained the same faces, people were slower in detecting the absence of a discrepant face when the faces displayed angry (or sad/angry) rather than happy expressions. (2) When displays contained a discrepant face people were faster in detecting this when the discrepant face displayed an angry rather than a happy expression. (3) Neither of these patterns for same and different displays was apparent when face displays were inverted, or when just the mouth was presented in isolation. (4) The search slopes for angry targets were significantly lower than for happy targets. These results suggest that detection of angry facial expressions is fast and efficient, although does not "pop-out" in the traditional sense. 相似文献
130.
Robert E. Lee Kathleen Burns Jager Jason B. Whiting Catherine T. Kwantes 《Contemporary Family Therapy》2000,22(1):81-90
Confirmatory factor analysis and regression analyses of the Beavers Interactional Scales did not appear to support the model offered by its developers, namely, several specified family attributes contributing respectively to two global factors of Family Competence and Family Style. Moreover, regression analysis indicated that only three of 12 items predicted raters' assessments of Global Family Health, and one of seven items predicted Global Family Style. Individuals interested in the family dynamic centripetal/centrifugal might best think of that as a unitary entity and rate it accordingly. 相似文献