全文获取类型
收费全文 | 3236篇 |
免费 | 203篇 |
国内免费 | 10篇 |
专业分类
3449篇 |
出版年
2023年 | 47篇 |
2022年 | 40篇 |
2021年 | 48篇 |
2020年 | 100篇 |
2019年 | 106篇 |
2018年 | 131篇 |
2017年 | 137篇 |
2016年 | 162篇 |
2015年 | 86篇 |
2014年 | 104篇 |
2013年 | 380篇 |
2012年 | 162篇 |
2011年 | 190篇 |
2010年 | 114篇 |
2009年 | 101篇 |
2008年 | 122篇 |
2007年 | 140篇 |
2006年 | 119篇 |
2005年 | 103篇 |
2004年 | 92篇 |
2003年 | 87篇 |
2002年 | 91篇 |
2001年 | 65篇 |
2000年 | 36篇 |
1999年 | 37篇 |
1998年 | 29篇 |
1997年 | 27篇 |
1996年 | 24篇 |
1995年 | 33篇 |
1994年 | 37篇 |
1993年 | 23篇 |
1992年 | 33篇 |
1991年 | 24篇 |
1990年 | 22篇 |
1989年 | 23篇 |
1988年 | 26篇 |
1987年 | 19篇 |
1986年 | 24篇 |
1985年 | 26篇 |
1984年 | 18篇 |
1983年 | 18篇 |
1982年 | 18篇 |
1980年 | 14篇 |
1979年 | 19篇 |
1978年 | 29篇 |
1977年 | 18篇 |
1976年 | 12篇 |
1975年 | 13篇 |
1974年 | 18篇 |
1973年 | 15篇 |
排序方式: 共有3449条查询结果,搜索用时 15 毫秒
171.
Jung YH Kang DH Byun MS Shim G Kwon SJ Jang GE Lee US An SC Jang JH Kwon JS 《Stress (Amsterdam, Netherlands)》2012,15(1):97-104
Meditation may show differential effects on stress and plasma catecholamines based on genetic polymorphisms in brain-derived neurotrophic factor (BDNF) and catechol O-methyl transferase (COMT). Eighty adults (40 men, 40 women; mean age 26 years) who practiced meditation regularly and 57 healthy control adults (35 men, 22 women; mean age 26 years) participated. Plasma catecholamines (norepinephrine (NE), epinephrine (E), and dopamine (DA)) concentrations were measured, and a modified form of the Stress Response Inventory was administered. The results were analyzed using two-way analysis of covariance (ANCOVA) with control and meditation subjects, gene polymorphism as factors, and meditation duration as the covariate. Two-way ANCOVA showed a significant interaction between control and meditation subjects, and BDNF Val66Met polymorphism on DA/NE+DA/E (p = 0.042) and NE/E+NE/DA (p = 0.046) ratios. A significant interaction was found for control and meditation subjects with COMT Val158Met polymorphism and plasma NE concentrations (p = 0.009). Post hoc ANCOVA in the meditation group, adjusted for meditation duration, showed significantly higher plasma NE concentrations for COMT Met carriers than COMT Val/Val subjects (p = 0.025). Significant differences of stress levels were found between the control and meditation subjects in BDNF Val/Met (p < 0.001) and BDNF Met/Met (p = 0.003), whereas stress levels in the BDNF Val/Val genotype did not differ between the control and meditation groups. This is the first evidence that meditation produces different effects on plasma catecholamines according to BDNF or COMT polymorphisms. 相似文献
172.
Difficulties with social interactions and restrictive and repetitive interest patterns or behaviors are common among individuals
with Asperger syndrome. These difficulties often pose barriers to establishing and maintaining social relationships. In the
current study, 2 different interventions were compared that focused on improving the social interactions of a 14-year-old
adolescent with Asperger syndrome. A reversal design was used to compare the effectiveness of video feedback and in vivo self-monitoring
on inappropriate and appropriate social interactions during activities with a teacher. The procedures were replicated during
activities with peers, and generalization was assessed during activities with the adolescent’s mother. Although video feedback
resulted in slight reductions in inappropriate behavior, larger reductions occurred during in vivo self-monitoring. Treatment
acceptability data indicated high participant satisfaction with both interventions; however, the in vivo self-monitoring was
rated as slightly preferred. 相似文献
173.
Meejung Chin Jaerim Lee Soyoung Lee Seohee Son Miai Sung 《Journal of child and family studies》2012,21(1):53-64
We provide a comprehensive review of family policy in South Korea (Korea hereafter) for international readers. Alarmed by
recent social and demographic changes, the Korean government has started to establish explicit family policies from the mid
2000s. These policies have signified a symbolic attention shift to family matters in the history of social policy in Korea.
In this paper, we focus on three areas of family policy: (a) work-family policies, (b) a healthy family policy, and (c) a
policy for multi-cultural families. Work-family policies aim to help working families with young children balance work responsibilities
and family caregiving through multiple leave options and child care support. The Framework Act on Healthy Families, the first
explicit family policy in Korea, requires local governments to provide family services through Healthy Family Support Centers.
The Multi-Cultural Family Support Act also established a formal support system for multi-cultural families with immigrant
spouses, a population group that has recently increased in Korea. We further discuss the domestic and comparative contexts
of Korean family policy and provide suggestions for the remaining challenges. 相似文献
174.
Michael L. Bloomquist Gerald J. August Susanne S. Lee Timothy F. Piehler Marcia Jensen 《Journal of child and family studies》2012,21(3):368-383
A variety of predictors of parent participation in prevention programming have been identified in past research, but few studies
have investigated how those predictors may vary by implementation context. Patterns of parent participation were examined
in the Early Risers Conduct Problems Prevention Program using two family-focused service delivery models: a community center
model (Center) and an in-home outreach-based model (Outreach). An ethnically diverse sample of Kindergarten through second
grade students (n = 246) displaying elevated levels of aggression were recruited for the study and randomly assigned to either
the Center (n = 121) or Outreach (n = 125) models. In both delivery models, participants and their families completed an assortment
of baseline measures and received family skills and child skills intervention components and family- and school-based case
management. Parents in the Center model demonstrated greater overall participation in family-focused components of the intervention.
Parent motivation with parent-focused expectancies for the intervention represented the strongest predictor of parent participation
across both delivery models. Family income differentially predicted parent participation across the two models, with low income
predicting greater participation in the Center model and lower participation in the Outreach model. A qualitative finding
emerged showing that parents receiving parent skills in the Center model via groups preferred to learn skills related to facilitating
overall family relationships, whereas parents receiving parent skills via individual Outreach meetings preferred to improve
a child’s behavior and emotion skills. Implications are discussed for the design of prevention programming in order to maximize
parent participation in high risk populations. 相似文献
175.
Lee SM Thorn A Bloomdahl SC Ha JH Nam SK Lee J 《The Spanish journal of psychology》2012,15(2):582-591
The purpose of the present study was to explore the relationships between three predictor variables (attitude toward school, parent-child communication, and school commitment action) and the criterion variable (parent involvement) in a representative sample and to examine if these relationships were consistent across three groups (English speaking Caucasian family, English speaking Latino family, and Spanish speaking Latino families). Using a national database (N = 9.841), multi-group SEM analyses were conducted to investigate the relationship between three predictor variables and the criterion variable in three family groups. While all three predictor variables significantly predicted parent involvement in English speaking Caucasian and Latino families, only two variables (parent-child communication and school commitment actions), significantly predicted parent involvement in Spanish speaking Latino families. The results of this study suggest that when administrators, teachers and counselors in school strive to share specific school-related information with Latino families, Spanish speaking families are more likely to become involved with schools. 相似文献
176.
While disoriented humans and animals use both landmarks and environmental geometry to guide their navigation, it is not clear what kinds of cognitive mechanisms underlie these behaviors. Because traditional tests of trained navigation behavior in environments containing both landmarks and geometric information may cloud our insight into the nature of these processes, the present study tested the spontaneous use of landmarks and environmental shape by two species of fish-Redtail Splitfins (Xenotoca eiseni) and Zebrafish (Danio rerio). The results suggest that while geometry is spontaneously used by both species and both sexes to compute relative position or direction, the spontaneous use of landmarks is limited to direct beaconing and complicated by attraction to features and variability across species and sex. These findings support the view that while multiple cues may ultimately guide behavior, the computation of orientation and relative positions is specified by geometric input and is independent from other navigation processes such as beaconing. 相似文献
177.
178.
Over the past decade, increasing attention has been paid to gender‐related consumption behaviour. However, a relative gap in our knowledge still exists when it comes to understanding the changes that occur as a result of motherhood and how this may influence their interactions in the retail environment. The purpose of this article is to explore stay‐at‐home mothers’ experiences in the servicescape to gain a better understanding of how they associate with servicescapes during this transitional period, how they use retail space to suit their needs, and how they use retail space to negotiate their role as a stay‐at‐home mother. Five stay‐at‐home mothers with children younger than 5 years were provided with disposable cameras and asked to photograph servicescapes that they visited regularly. Over a 1‐year period, they were interviewed several times, and photo‐elicitation techniques were used throughout the interviewing process. The results of this study suggest that when consumers undergo role or identity changes, certain places can be used to smooth this process. Not only can the retail environment be used as a coping mechanism for stay‐at‐home mothers, it can also be viewed as a “second place” as opposed to a “third place”, thus enabling isolated consumers to feel connected with the outside world. Last, this study highlights the temporal dimensions of place. Throughout one's lifetime, one will form attachments to and patronise different places, which will evolve and change as individuals, accordingly, take on different roles and identities. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
179.
T Ketelaar BL Koenig D Gambacorta I Dolgov D Hor J Zarzosa C Luna-Nevarez M Klungle L Wells 《Evolutionary psychology》2012,10(3):371-397
Across four studies, the current paper demonstrates that smiles are associated with lower social status. Moreover, the association between smiles and lower status appears in the psychology of observers and generalizes across two forms of status: prestige and dominance. In the first study, faces of fashion models representing less prestigious apparel brands were found to be more similar to a canonical smile display than the faces of models representing more prestigious apparel brands.?In a second study, after being experimentally primed with either high or low prestige fashion narratives, participants in the low prestige condition were more likely to perceive smiles in a series of photographs depicting smiling and non-smiling faces. A third study of football player photographs revealed that the faces of less dominant (smaller) football players were more similar to the canonical smile display than the faces of their physically larger counterparts. Using the same football player photographs, a fourth study found that smiling was a more reliable indicator of perceived status-relevant personality traits than perceptions of the football players' physical sizes inferred from the photographs. 相似文献
180.
Gina Mireault Merlin Poutre Mallory Sargent‐Hier Caitlyn Dias Brittany Perdue Allison Myrick 《Infant and child development》2012,21(4):338-347
Humour and laughter are universal to the human psychological experience and have serious developmental and evolutionary implications. Despite the early emergence of laughter in infancy, infants have been largely ignored in the humour research and humour has been largely ignored in the infant research. The present study describes the emergence of humour perception and creation in a sample of 20 parent–infant dyads who were followed from ages 3‐to‐ 6 months. The study examined how infants discover that absurd nonverbal behaviour, known as ‘clowning’, is amusing in the context of social engagement with caregivers. Results indicate that parents primarily use clowning when attempting to amuse their infants and pair these behavioural absurdities with affective cues like smiling and laughing. As they got older, infants were more likely to laugh and smile in response to clowning. Infants' ability to create humor via clowning also increased with age, starting with simple shrieks at 3 months to imitating absurd actions by 5 months. These increases are partly potentially explained by accompanying increases in parental smiling, laughing and clowning in response to infant clowning. Future research should employ more diverse samples and experimentally investigate the role of parental affect and social referencing in infants' interpretation of absurd behavior. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献