全文获取类型
收费全文 | 1589篇 |
免费 | 52篇 |
国内免费 | 1篇 |
专业分类
1642篇 |
出版年
2023年 | 14篇 |
2022年 | 14篇 |
2020年 | 27篇 |
2019年 | 29篇 |
2018年 | 36篇 |
2017年 | 41篇 |
2016年 | 36篇 |
2015年 | 26篇 |
2014年 | 35篇 |
2013年 | 187篇 |
2012年 | 75篇 |
2011年 | 62篇 |
2010年 | 40篇 |
2009年 | 38篇 |
2008年 | 50篇 |
2007年 | 56篇 |
2006年 | 40篇 |
2005年 | 40篇 |
2004年 | 41篇 |
2003年 | 39篇 |
2002年 | 51篇 |
2001年 | 45篇 |
2000年 | 36篇 |
1999年 | 31篇 |
1998年 | 22篇 |
1997年 | 18篇 |
1996年 | 20篇 |
1994年 | 16篇 |
1993年 | 14篇 |
1992年 | 26篇 |
1991年 | 16篇 |
1990年 | 14篇 |
1989年 | 20篇 |
1988年 | 17篇 |
1987年 | 14篇 |
1986年 | 14篇 |
1984年 | 15篇 |
1983年 | 14篇 |
1981年 | 16篇 |
1980年 | 18篇 |
1978年 | 14篇 |
1977年 | 12篇 |
1976年 | 17篇 |
1975年 | 14篇 |
1974年 | 15篇 |
1972年 | 17篇 |
1970年 | 12篇 |
1968年 | 23篇 |
1967年 | 15篇 |
1966年 | 20篇 |
排序方式: 共有1642条查询结果,搜索用时 0 毫秒
241.
Eric Anderson 《Sex roles》2008,58(1-2):104-115
Using in-depth interviews and participant observations, I examine how two groups of heterosexual high school US football players
alter differently the construction of heterosexuality and masculinity after joining collegiate cheerleading. First, I show
that informants from both groups make masculinity accessible to gay men before next describing how they reconcile heterosexuality
with limited forms of same-sex sex. Forty-percent of the heterosexual men I interview confirm engaging in same-sex sex, although
they differently frame the requirements for it. I suggest these findings have various meaning for the relationship between
sexuality and masculinity, as both groups somewhat strengthen and contest the borders of heterosexuality and masculinity.
These findings beckon consideration as to how the relationship among sport, sexuality, and homophobia is changing. 相似文献
242.
Anderson JD 《Journal of Fluency Disorders》2008,33(2):135-155
The effects of age of acquisition and repetition priming on picture naming latencies and errors were studied in 22 children who stutter (CWS) and 22 children who do not stutter (CWNS) between the ages of 3;1 and 5;7. Children participated in a computerized picture naming task where they named pictures of both early and late acquired (AoA) words in two consecutive stages. Findings revealed that all children's picture naming latencies and errors were reduced following repetition priming and in response to early AoA words relative to late AoA words. AoA and repetition priming effects were similar for children in both talker groups, with one exception. Namely, CWS benefitted significantly more, in terms of error reduction, than CWNS from repetition priming for late AoA words. In addition, CWNS exhibited a significant, positive association between linguistic speed and measures of vocabulary, but CWS did not. These findings were taken to suggest that the (a) semantic-phonological connections of CWS may not be as strong as those of CWNS, and (b) existing lexical measures may not be sensitive enough to differentiate CWS from CWNS in lexically related aspects of language production. Educational objectives: After reading this article, the learner will be able to: (a) describe the effects of repetition priming and age of word acquisition in speech production; (b) summarize the performance similarities and differences of children who stutter and children who do not stutter on a computerized picture naming task; and (c) compare the results of the present study with previous work in this area. 相似文献
243.
There is debate regarding the relationship between executive function and social outcome following paediatric traumatic brain injury (TBI), due to inconsistent findings in the literature. It has been suggested that these contradictory results may reflect the absence of an established mechanism to explain this relationship. Yeates and colleagues (2004) proposed a possible model in which the maturity of social problem‐solving skills mediates the relationship between executive function and social outcome. The current study aimed to explore this model and determine whether social problem solving mediates the relationship between executive function and social outcome in a TBI population. The sample consisted of 36 adolescents and young adults who sustained a TBI between 8 and 12 years of age. They ranged between 16 and 22 years of age and were 7–10 years post‐injury. Findings indicated that a higher level of executive dysfunction was associated with less sophisticated social problem‐solving skills and poorer social outcome. Further, the maturity of social problem‐solving skills was found to mediate the relationship between executive function and social outcome in this group. 相似文献
244.
Uchiyama I Anderson DI Campos JJ Witherington D Frankel CB Lejeune L Barbu-Roth M 《Developmental psychology》2008,44(5):1225-1231
Two studies investigated the role of locomotor experience on visual proprioception in 8-month-old infants. Visual proprioception refers to the sense of self-motion induced in a static person by patterns of optic flow. A moving room apparatus permitted displacement of an entire enclosure (except for the floor) or the side walls and ceiling. In Study 1, creeping infants and prelocomotor/walker infants showed significantly greater postural compensation and emotional responses to side wall movement than did same-age prelocomotor infants. Study 2 used true random assignment of prelocomotor infants to locomotor-training (via a powered-mobility device) and no-training conditions. Experimental infants showed powerful effects of locomotor training. These results imply that locomotor experience is playing a causal role in the ontogeny of visual proprioception. 相似文献
245.
246.
How can individuals attain influence in organizations? Prior research has identified structural determinants of influence, such as formal authority and position in a social network. However, indirect evidence suggests that influence might also stem from personal characteristics. The authors tested whether influence can stem from the fit between the person and his or her organization (P-O fit). Consistent with expectations, extraverts attained more influence in a team-oriented organization, whereas conscientious individuals attained more influence in an organization in which individuals worked alone on technical tasks. Further, these effects held up after controlling for formal authority, job performance, and demographic characteristics, such as gender, ethnicity, and socioeconomic status. The multiple ways in which individuals can gain influence are discussed. 相似文献
247.
Functional theories of reputation imply that individuals' reputations are tied to their history of behavior. However, indirect evidence suggests that the relation between reputation and behavior might be tenuous at best. In 3 studies, the authors tracked the development of reputations among individuals who engaged in multiple negotiation tasks across several weeks. The authors found that on average, individuals' reputations were only mildly related to their history of behavior. However, the link between reputation and behavior was stronger for some individuals than others--specifically, for individuals who were more well-known and received more social attention in the community. In contrast, for less well-known individuals, their behavior had little impact on their reputation. The findings have implications for psychologists' understanding of reputations, person perceptions in larger groups, and the costs and benefits of social visibility. 相似文献
248.
Erica L. Hauck Lori Anderson Snyder Luz-Eugenia Cox-Fuenzalida 《Current psychology (New Brunswick, N.J.)》2008,27(2):112-125
The current study investigated the effect of workload variability on performance and stress, as well as the role of social
support as a potential intervention. Based on previous research it was predicted that a shift in workload from either high
to low or low to high would lower performance and increase stress, while the provision of social support would result in higher
performance and lower stress. Results revealed significant decrements in performance following workload shifts, though no
increase in stress was perceived. Performance in both workload conditions significantly, but inconsistently, increased following
the provision of social support and stress significantly decreased following the shift from high to low workload. Implications
and future research steps are discussed further. 相似文献
249.
Using a model to compute the optimal schedule of practice 总被引:1,自引:0,他引:1
By balancing the spacing effect against the effects of recency and frequency, this paper explains how practice may be scheduled to maximize learning and retention. In an experiment, an optimized condition using an algorithm determined with this method was compared with other conditions. The optimized condition showed significant benefits with large effect sizes for both improved recall and recall latency. The optimization method achieved these benefits by using a modeling approach to develop a quantitative algorithm, which dynamically maximizes learning by determining for each item when the balance between increasing temporal spacing (that causes better long-term recall) and decreasing temporal spacing (that reduces the failure related time cost of each practice) means that the item is at the spacing interval where long-term gain per unit of practice time is maximal. As practice repetitions accumulate for each item, items become stable in memory and this optimal interval increases. 相似文献
250.
Acquisition of interactive skills involves the use of internal and external cues. Experiment 1 showed that when actions were interdependent, learning was effective with and without external cues in the single-task condition but was effective only with the presence of external cues in the dual-task condition. In the dual-task condition, actions closer to the feedback were learned faster than actions farther away but this difference was reversed in the single-task condition. Experiment 2 tested how knowledge acquired in single and dual-task conditions would transfer to a new reward structure. Results confirmed the two forms of learning mediated by the secondary task: A declarative memory encoding process that simultaneously assigned credits to actions and a reinforcement-learning process that slowly propagated credits backward from the feedback. The results showed that both forms of learning were engaged during training, but only at the response selection stage, one form of knowledge may dominate over the other depending on the availability of attentional resources. 相似文献