首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   7925篇
  免费   429篇
  国内免费   124篇
  2024年   8篇
  2023年   58篇
  2022年   44篇
  2021年   79篇
  2020年   139篇
  2019年   145篇
  2018年   148篇
  2017年   138篇
  2016年   128篇
  2015年   91篇
  2014年   115篇
  2013年   370篇
  2012年   86篇
  2011年   94篇
  2010年   89篇
  2009年   111篇
  2008年   128篇
  2007年   136篇
  2006年   121篇
  2005年   108篇
  2004年   79篇
  2003年   73篇
  2002年   68篇
  2001年   43篇
  2000年   49篇
  1999年   48篇
  1998年   36篇
  1997年   30篇
  1996年   44篇
  1995年   26篇
  1994年   24篇
  1993年   18篇
  1992年   26篇
  1991年   16篇
  1990年   14篇
  1989年   18篇
  1987年   8篇
  1985年   450篇
  1984年   519篇
  1983年   424篇
  1982年   525篇
  1981年   498篇
  1980年   517篇
  1979年   469篇
  1978年   490篇
  1977年   371篇
  1976年   372篇
  1975年   311篇
  1974年   308篇
  1973年   254篇
排序方式: 共有8478条查询结果,搜索用时 15 毫秒
931.
汶川地震9.5年后,对汶川县和都江堰市767名中学生进行调查,考察惩罚敏感性和孤独感在创伤后应激障碍症状和网络成瘾症状之间的多重中介作用及性别差异。结果发现:(1)PTSD症状正向预测网络成瘾症状,并分别通过惩罚敏感性、孤独感的单独中介作用及两者的链式中介作用显著预测网络成瘾症状;(2)女性的PTSD症状显著正向预测网络成瘾症状,并分别通过惩罚敏感性和孤独感间接影响网络成瘾症状;男性的网络成瘾症状仅被PTSD症状正向预测。  相似文献   
932.
教育传播学属于跨学科研究领域,在我国尚属新兴学科。从传播学的角度解读孔子的教育传播思想,可以发现其教育传播思想中教育传播平民化;以文字传播作为主要的教育传播媒介;严格的传者自律;强烈的受众意识等诸多方面的内容。  相似文献   
933.
We compared maternal attitudes and feelings in two groups of mother–infant dyads: 25 mothers with preterm newborns (M=30.9 weeks of gestational age) and 25 mothers with fullterm newborns (M=39.7 weeks of gestational age). Both groups were matched for infant sex, age (corrected in preterms) and birth order as well as for maternal age and education. Semi-structured interviews were used to collect data on maternal attitudes and feelings about pregnancy and the first contacts with the newborn. Mothers completed rating scales to indicate the specific behavioural problems they perceived in their infants at 6 weeks and 3 months of (corrected) age. Observations of infant responses to visual and/or auditory stimuli were made at 6 weeks and 3 months in a laboratory setting. At 3 months, each infant was administered the Bayley Scale of Mental Development. There were no differences in maternal attitudes and feelings between the two groups of mothers prior to the birth. However, significant differences appeared after birth and indicated increased anxiety in mothers of preterm infants. Significantly more 6-week-old preterm infants were perceived by their mothers as irritable and to cry more than fullterm infants. At the age of 3 months, both groups of infants differed only in terms of irritability. Differences between the two groups of mother–infant dyads, age-related changes in these differences and relationships between maternal evaluations and the laboratory-based assessments are discussed in the context of contrasts in the stability of behavioural regulation in preterm and fullterm infants.  相似文献   
934.
Testing a component of a theoretical model which postulates that low levels of communication effectiveness accompany the social and affective problems presented by aggressive children, the study compared the communication skills of a group of aggressive (n = 49) and nonaggressive (n = 49) elementary school children (selected on the basis of teacher ratings) in a structured and cooperative communication task. Based on direct observational measures of communication effectiveness and aggression, and on teacher, peer, and self-rating measures of peer rejection and depressive symptoms, results showed that (a) aggressive children exhibited less effective communication skills and more disruptive communication skills than nonaggressive peers; (b) aggressive children experienced higher levels of peer rejection and depressive symptoms than nonaggressive peers; and (c) group differences in communication effectiveness could not be accounted for by differences in observed aggression and remained significant, even after controlling for differences in peer status and affective functioning. These findings highlight the role that ineffective communication may play in the development and maintenance of aggression and have important theoretical and applied implications, which are briefly discussed. © 1994 Wiley-Liss, Inc.  相似文献   
935.
The transition to parenthood is one of the most stressful intra- and interpersonal adjustment periods for new parents. Bidirectional associations among intergenerational relationships during the transition to parenthood have received limited attention, and the complexity of reciprocal relationships varies in accordance with living arrangements. The objectives of this study were to explore (1) the bidirectional associations between marital relationships and conflicts with in-laws during the transition to parenthood and (2) the moderation of patrilineal coresidence on the aforementioned relationships. A three-wave prospective longitudinal design was adopted for 359 married mothers. The Dyadic Adjustment Scale and Stryker Adjustment Checklist were used to assess marital relationships and conflicts with parents-in-law. Cross-lagged panel analysis was applied to examine reciprocal relationships, and multigroup analyses were employed to determine whether these relationships exhibited different patterns in accordance with the individuals’ living arrangements. The two cross-lagged models revealed the presence of a bidirectional relationship between marital distress and conflicts with parents-in-law during the mid- to late pregnancy stages. Meanwhile, the multigroup analyses suggested that conflicts with parents-in-law triggered marital distress during pregnancy in the coresidence group, whereas conflicts with fathers-in-law could intensify marital distress during late pregnancy to the postpartum period in the noncoresidence group. These findings shed light on cross-lagged associations with intergenerational conflicts. Healthcare professionals need to ensure that intergenerational relationships are positive during the transition to parenthood. This study enriches our understanding of the effect of patrilineal coresidence and can guide the future development of interventions based on culturally specific multidimensional approaches.  相似文献   
936.
This project investigates the relationship between religious involvement and women's work and family pathways in the United States. I identify five work-family configurations using National Longitudinal Study of Youth 1979 (NLSY79) data and latent class analysis. These configurations incorporate cohabitation histories, timing of family formation, and maternal employment. Then, I analyze how adolescent religiosity and personal and family characteristics are associated with subsequent work-family pathways. Affiliation with an evangelical Protestant tradition is associated with women who form families early, while Catholic affiliation is tied to later family formation. Importantly, family background characteristics such as living with both biological parents and higher parental education, as well as race/ethnicity and the respondent's educational attainment, are the most consistent variables associated with work-family configurations. These results suggest that religious involvement, when considered alongside family background, contributes to women's unequal work-family pathways in adulthood. The close links between religion, family, and stratification are evident in the study of women's work-family experiences.  相似文献   
937.
There are over 3,000 sleep related infant deaths each year in the United States. Attempts to teach medical personnel and parents safe infant sleep practices in the infant sleep training literature have demonstrated mixed results. Thus, strategies to teach arrangements of safe infant sleep environments warrant further investigation. Behavioral skills training (BST) is an evidence-based teaching strategy shown to successfully teach various safety skills to children and adults. The current study evaluated the effectiveness of behavioral skills training to teach safe infant sleep practices to typically developing adults. Specifically, differential responding was assessed across multiple environmental arrangements typical of contexts parents may be exposed to when putting an infant to sleep. BST significantly improved appropriate arrangement of a safe sleep environment for infants for all 8 participants.  相似文献   
938.
Deficits in response to name (RTN) are an early indicator of autism spectrum disorder (ASD), and RTN is a treatment goal in many early intervention curricula for children with ASD. However, little research has empirically evaluated methods for increasing RTN in children with ASD. We evaluated a series of conditions designed to increase RTN for 4 children with ASD using a multielement experimental design. The schedules of tangible reinforcement were thinned after mastery and generalization was tested across people and contexts. Tangible reinforcers were necessary to increase RTN for all 4 participants, and the schedule of reinforcement was successfully thinned with all participants after intervention. Generalization was also observed across people and experimental contexts.  相似文献   
939.
Parental involvement in intervention can support intervention efficacy, improve generalization, and increase accessibility. The Preschool Life Skills (PLS) program is designed to teach 13 preschool life skills and prevent problem behavior. The current study explores the utility of the PLS program as delivered by parents. In Experiment 1, 6 parents were taught to use the PLS program at home with their typically developing children (3 years 3 months to 4 years 11 months). This application of the PLS program led to an increase in preschool life skills and a decrease in problem behavior and supported some generalization of the target preschool life skills from the home to preschool settings. In Experiment 2, 7 parents were taught to use the PLS program with their children with autism spectrum disorder (ASD; 3 years 11 months to 6 years 9 months). Results overall supported the parent implementation of the program and highlighted modifications required to support positive outcomes for children with ASD.  相似文献   
940.
Recently, researchers have compared the utility of isolated versus synthesized contingencies in functional analysis (FA) methodology (e.g., Fisher et al., 2016; Slaton et al., 2017). A limitation of these studies is that there were other differences across FA methodologies (e.g., design, contingency) that did not allow for isolation of the influence of isolated versus synthesized contingencies. Therefore, the current study compared outcomes of FAs that involved isolated versus synthesized contingencies for problem behavior of 5 children while controlling for these other differences across FAs (Experiment 1). Next, the current study compared the effects of interventions based on the functions identified in the isolated and synthesized contingencies for each participant (Experiment 2). Results indicated isolated contingency FAs produced differentiated responding for 1 or both functions for all 5 participants, and there were little to no differences between treatments informed by isolated and synthesized contingency FAs.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号