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   3153篇
  免费   152篇
  2023年   19篇
  2022年   21篇
  2021年   32篇
  2020年   60篇
  2019年   64篇
  2018年   74篇
  2017年   91篇
  2016年   129篇
  2015年   86篇
  2014年   88篇
  2013年   398篇
  2012年   158篇
  2011年   162篇
  2010年   101篇
  2009年   102篇
  2008年   137篇
  2007年   144篇
  2006年   132篇
  2005年   118篇
  2004年   126篇
  2003年   120篇
  2002年   103篇
  2001年   46篇
  2000年   54篇
  1999年   48篇
  1998年   52篇
  1997年   46篇
  1996年   45篇
  1995年   60篇
  1994年   40篇
  1993年   33篇
  1992年   33篇
  1991年   26篇
  1990年   27篇
  1989年   20篇
  1988年   11篇
  1987年   16篇
  1986年   17篇
  1985年   16篇
  1984年   19篇
  1983年   26篇
  1982年   35篇
  1981年   23篇
  1980年   23篇
  1979年   13篇
  1978年   16篇
  1977年   15篇
  1976年   12篇
  1975年   15篇
  1974年   16篇
排序方式: 共有3305条查询结果,搜索用时 15 毫秒
931.
Caregivers of youth with behavioral health conditions often experience significant and chronic caregiving strain. Caregiving strain is thought to consist of three dimensions: objective strain (observable negative events), subjective internalized strain (negative feelings directed inwardly), and subjective externalized strain (negative feelings directed outwardly). Based on a modified stress process model, the aims of this study were to: (1) examine whether the association between youth emotional-behavioral problem severity (measured with the Child Behavior Checklist/6–18) and subjective internalized and subjective externalized caregiving strain is mediated by objective strain for caregivers, and; (2) identify other predictors of subjective internalized and subjective externalized strain, particularly related to youth emotional-behavioral strengths as measured by the Behavioral and Emotional Rating Scale-Parent Rating Scale. We also explored the extent to which the association between youth emotional-behavioral problem severity and subjective internalized and subjective externalized strain may be moderated by perceived youth emotional-behavioral strengths. One-hundred and eighty-five (N = 185) caregivers of youth served by a community-based system of care participated in structured survey interviews at program enrollment. Regression analyses indicated that objective strain was found to fully mediate the association between youth emotional-behavioral problem severity and subjective externalized strain. Greater youth strengths related to family involvement were also associated with lower subjective externalized strain. Higher caregiver age, lower education, biological parent relationship to youth, greater youth emotional-behavioral problem severity, higher objective strain, and lower youth strengths related to school functioning were associated with higher subjective internalized strain. A significant interaction was found between youth problem severity, youth affective strengths, and subjective internalized strain such that caregivers who reported higher levels of youth affective strengths experienced stronger effects from youth emotional-behavioral problem severity on subjective internalized strain. These findings shed light upon the complex set of circumstances that may lead caregivers of youth with behavioral health conditions to experience subjective internalized and subjective externalized strain.  相似文献   
932.
Oppositional defiant disorder (ODD), characterized by angry/irritable mood, and argumentative/defiant behavior, is associated with significant negative outcomes in childhood and beyond. Researchers posit that these behaviors arise from poor parenting and/or an incompatibility between characteristics of the child and the child’s parents, resulting in strained interaction styles. The present study examines parent–child synchrony, the inverse of parent–child incompatibility as a predictor of children’s emotional lability, aggression, and overall functioning following psychosocial treatment. Participants were 75 treatment-seeking families with children diagnosed with ODD (46 boys). Families received one of two empirically supported treatments for ODD (Parent Management Training or Collaborative and Proactive Solutions). Findings indicated that pre-treatment parent–child synchrony was associated with decreased emotional lability and aggression following both treatments, as well as improvement in overall functioning, irrespective of treatment condition. These results reflect the importance of parent–child relations at the onset of treatment in predicting response to treatment and suggest potential treatment targets within parent–child relationships.  相似文献   
933.
Successful communication in everyday life crucially involves the processing of auditory and visual components of speech. Viewing our interlocutor and processing visual components of speech facilitates speech processing by triggering auditory processing. Auditory phoneme processing, analyzed by event‐related brain potentials (ERP), has been shown to be associated with impairments in reading and spelling (i.e. developmental dyslexia), but visual aspects of phoneme processing have not been investigated in individuals with such deficits. The present study analyzed the passive visual Mismatch Response (vMMR) in school children with and without developmental dyslexia in response to video‐recorded mouth movements pronouncing syllables silently. Our results reveal that both groups of children showed processing of visual speech stimuli, but with different scalp distribution. Children without developmental dyslexia showed a vMMR with typical posterior distribution. In contrast, children with developmental dyslexia showed a vMMR with anterior distribution, which was even more pronounced in children with severe phonological deficits and very low spelling abilities. As anterior scalp distributions are typically reported for auditory speech processing, the anterior vMMR of children with developmental dyslexia might suggest an attempt to anticipate potentially upcoming auditory speech information in order to support phonological processing, which has been shown to be deficient in children with developmental dyslexia.  相似文献   
934.
Although a universal code for the acoustic features of animal vocal communication calls may not exist, the thorough analysis of the distinctive acoustical features of vocalization categories is important not only to decipher the acoustical code for a specific species but also to understand the evolution of communication signals and the mechanisms used to produce and understand them. Here, we recorded more than 8000 examples of almost all the vocalizations of the domesticated zebra finch, Taeniopygia guttata: vocalizations produced to establish contact, to form and maintain pair bonds, to sound an alarm, to communicate distress or to advertise hunger or aggressive intents. We characterized each vocalization type using complete representations that avoided any a priori assumptions on the acoustic code, as well as classical bioacoustics measures that could provide more intuitive interpretations. We then used these acoustical features to rigorously determine the potential information-bearing acoustical features for each vocalization type using both a novel regularized classifier and an unsupervised clustering algorithm. Vocalization categories are discriminated by the shape of their frequency spectrum and by their pitch saliency (noisy to tonal vocalizations) but not particularly by their fundamental frequency. Notably, the spectral shape of zebra finch vocalizations contains peaks or formants that vary systematically across categories and that would be generated by active control of both the vocal organ (source) and the upper vocal tract (filter).  相似文献   
935.
936.
This research studied accountability pressures faced by five school administrators, and explored collaborative autobiography as a way for administrators to reflect on and address those pressures. The administrators cycled back and forth between reflective writing and group dialogue as they contemplated accountability pressures, their life histories in relationship to the pressures, and their preferred future. The participants reported that the process helped them to better understand accountability pressures and develop strategies for negotiating those pressures.  相似文献   
937.
A critical skill in emergent writing is the developing ability to take the perspective of different readers; however, the precursors of this skill have not yet been identified. In this longitudinal study, 105 children (90 after attrition) were tested at 3 time points: pre-kindergarten (3–4 years old, n = 105), kindergarten (5 years old, n = 97), and Grade 1 (6–7 years old, n = 90). Theory of mind (ToM) in pre-kindergarten significantly predicted children’s awareness of a reader’s epistemic state when they dictated letters in both kindergarten and Grade 1 even after controlling for language (Peabody Picture Vocabulary Task [PPVT]) and inhibitory control. In addition, ToM in pre-kindergarten remained a significant predictor of reader awareness in Grade 1 after further controlling for reader awareness in kindergarten. There was little relationship between higher-order ToM tasks in kindergarten and reader awareness, but higher-order ToM in Grade 1 concurrently predicted reader awareness. Receptive vocabulary (PPVT) was significantly related to reader awareness at all time points, longitudinally and concurrently. This study has both theoretical implications for the relationship between ToM and emergent literacy and practical implications for the early identification and remediation of children at risk for later writing difficulties.  相似文献   
938.
939.
Episodic future thinking (EFT), the ability to project into the future to “preexperience” an event, and prospective memory (PM), remembering to perform an intended action, are both examples of future-oriented cognition. Recently it has been suggested that EFT might contribute to PM performance but to date few studies have examined the relationship between these two capacities. The aim of the present study was to investigate the nature and specificity of this relationship, as well as whether it varies with age. Participants were 125 younger and 125 older adults who completed measures of EFT and PM. Significant, positive correlations between EFT and PM were identified in both age groups. Furthermore, EFT ability accounted for significant unique variance in the young adults, suggesting that it may make a specific contribution to PM function. Within the older adult group, EFT did not uniquely contribute to PM, possibly indicating a reduced capacity to utilize EFT, or the use of compensatory strategies. This study is the first to provide systematic evidence for an association between variation in EFT and PM abilities in both younger and older adulthood and shows that the nature of this association varies as a function of age.  相似文献   
940.
This article examines an innovative psychoeducational group model at a community-based hepatitis C treatment program in Toronto, Canada. Group support is increasingly used as part of community-based, interdisciplinary approaches to addressing the complex psychosocial needs and barriers to care of individuals living with and/or undergoing treatment for hepatitis C. This article articulates the theoretical framework and details of one such group model. It also examines group engagement and outcomes using data collected over three group cycles. Psychotherapeutic engagement was higher than might be anticipated for a highly marginalized population. Specifically, group cohesion measures were equivalent or higher compared to norms for other support/psychotherapy groups. This study suggests that individuals with complex psychosocial issues have the ability to engage meaningfully in group therapy.  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