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   665篇
  免费   33篇
  国内免费   2篇
  700篇
  2023年   3篇
  2022年   3篇
  2021年   8篇
  2020年   17篇
  2019年   14篇
  2018年   16篇
  2017年   30篇
  2016年   17篇
  2015年   9篇
  2014年   18篇
  2013年   86篇
  2012年   38篇
  2011年   39篇
  2010年   19篇
  2009年   23篇
  2008年   31篇
  2007年   25篇
  2006年   24篇
  2005年   22篇
  2004年   31篇
  2003年   22篇
  2002年   24篇
  2001年   14篇
  2000年   17篇
  1999年   9篇
  1998年   9篇
  1997年   11篇
  1996年   15篇
  1995年   15篇
  1994年   8篇
  1993年   4篇
  1992年   3篇
  1991年   7篇
  1990年   5篇
  1989年   3篇
  1988年   8篇
  1987年   7篇
  1986年   3篇
  1985年   5篇
  1984年   6篇
  1982年   4篇
  1981年   5篇
  1980年   6篇
  1979年   2篇
  1978年   3篇
  1977年   2篇
  1974年   2篇
  1973年   3篇
  1971年   1篇
  1961年   1篇
排序方式: 共有700条查询结果,搜索用时 15 毫秒
661.
662.
The purpose of this article is to address selected aspects of depression in older adults. Specifically, symptoms, risk factors, diagnosis, and interventions for depression in older adults are reviewed.  相似文献   
663.
Speech samples were taken from 21 children aged 16–40 months covering a wide range of mean utterance length. Presence or absence of 14 grammatical morphemes in linguistic and nonlinguistic obligatory contexts was scored. Order of acquisition of the morphemes was determined using two different criteria. The rank-orderings obtained correlated very highly with a previously determined order of acquisition for three children studied longitudinally. Age did not add to the predictiveness of mean length of utterance alone for grammatical development in terms of which morphemes were correctly used. The approximately invariant order of acquisition for the fourteen morphemes is discussed in terms of three possible determinants of this order. Frequency of use in parental speech showed no correlation with order of acquisition, but grammatical and semantic complexity both correlated highly with acquisition order.This research was supported in part by PHS grant HD-02908 from the National Institute of Child Health and Development.  相似文献   
664.
We examined the development of some features of morphosyntactic ability, specifically the acquisition of auxiliaries and use of agreement marking, along with sentence processing capacity. We used a conceptually simple task called the Tags Question Task, which is a method for evaluating a number of language processes in the production of a commonly used, familiar linguistic device. We compared the performance of children with early focal lesions (N=21), children with specific-language impairment (N=24), and typically developing children (N=24) matched in age and nonverbal ability; additional analyses involved comparisons of children matched on performance level. The data converge to support a "delayed" development of language behavior in our clinical groups, as overall patterns of performance and age-related changes on individual tag features and tag questions were strikingly similar in all three groups across a number of methods of comparison. Implications for theories of the development of brain-language relationships as they pertain to early focal brain damage, specific-language impairment, and the language acquisition process in typically developing children are discussed.  相似文献   
665.
Le  Yen K.  Snodgrass  Jill L. 《Pastoral Psychology》2019,68(3):303-320
Pastoral Psychology - Based on findings from an interpretative phenomenological study, this article reports the lived experiences of religiosity and stress among six middle-aged Vietnamese-born...  相似文献   
666.
Attachment studies with diverse populations enrich the understanding of infants’ socioemotional development by documenting both universal and idiosyncratic aspects of attachment. Given the effects of attachment in children's socioemotional outcomes, such studies are necessary to investigate the impact of children's sensory impairments on attachment development. Yet, very little attachment research has focused on infants with visual impairment (VI infants), a population in which infant–caregiver emotional exchanges through visual means are reduced/absent. We investigated the applicability of the Strange Situation Paradigm (SSP), with added instructions to compensate for degraded visual input, in 20 VI infants (with no additional disabilities and who were receiving developmental counseling). In all but 1 of the SSPs coded, VI infants displayed observable attachment behavior that was classifiable. Nineteen VI infants showed attachment by 12 months of age. Across the ages tested (fractional age range = 0.9–2.33 months), most VI infants’ attachment patterns were classified as secure and organized.  相似文献   
667.
This repeated measures study examines (1) the change in subjective risk of mutations pre- to postcounseling, (2) the accuracy of BRCAPRO estimates of mutations, and (3) the discrepancy between subjective risk and BRCAPRO estimates of mutations before and after genetic counseling. Ninety-nine Ashkenazi Jewish individuals pursued testing for BRCA1/2 mutations. Most had a personal cancer history (N = 51; family only: N = 48); and received uninformative negative results (N = 66; positives: N = 23; informative negative: N = 10). The coping strategy of defensive pessimism predicts that individuals will believe the worst case scenario to better cope with a potential negative outcome. Consistent with this, most felt they would have a mutation, if not mutations in both genes. The BRCAPRO model appeared to overestimate risk of having a mutation in this sample (p < .001). BRCAPRO overestimates notwithstanding, genetic counseling increased accuracy of subjective risk (p < .01). Individuals with a family-only cancer history had the least accurate estimates of risk (p < .05) and may need further intervention to either manage anxiety or improve knowledge.  相似文献   
668.
The following article examined elevated self‐esteem as a function of a 10‐day developmental voyage. Two studies were conducted. Study 1 demonstrated that participants who completed the voyage experienced elevated self‐esteem. Study 2 replicated and extended these results insofar as it revealed that (a) elevated self‐esteem was maintained 12 months following the voyage; and (b) increasing levels of perceived self‐efficacy and belonging (as assessed on the last day of the voyage), but not social support, each made a unique contribution to these effects. Together, these findings provide converging evidence to suggest that a 10‐day developmental voyage upon the Spirit of New Zealand promotes elevated self‐esteem that is maintained over time, and that perceived self‐efficacy and belonging contribute to this outcome.  相似文献   
669.
This study examined the extent to which cognitive ability and conscientiousness predicted initial academic performance (i.e., grade point average) and changes in performance over the course of college students' careers. A censored latent growth model that controlled for initial performance was used. Results showed positive effects of cognitive ability and conscientiousness on initial performance, but only positive effects of conscientiousness on performance change. However, because initial performance negatively affected performance change, cognitive ability and conscientiousness negatively indirectly affected performance change through initial performance. In addition, results revealed cognitive ability accounted for more variance in initial performance than conscientiousness, and conscientiousness accounted for more variance in performance change than cognitive ability. Finally, results show that, beyond the third semester, conscientiousness is a better predictor of student performance than cognitive ability.  相似文献   
670.
The use of instructional advance directives assumes that preferences for life-sustaining medical treatment remain stable over time and across changes in life condition. A sample of 332 older adults recorded their preferences for 4 life-sustaining treatments in 9 illness scenarios. These preferences were elicited again 1 and 2 years after the original interview. Overall, preferences for life-sustaining treatment were moderately stable over time, but stability varied significantly across judgments. Preferences were most stable for illness scenarios that were most and least serious and for decisions to refuse treatment. Age, gender, education, and prior completion of an advance directive were all related to preference stability, and evidence indicated that declines in physical or psychological functioning resulted in decreased interest in life-sustaining treatment.  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