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   1627篇
  免费   141篇
  1768篇
  2024年   4篇
  2023年   30篇
  2022年   27篇
  2021年   38篇
  2020年   71篇
  2019年   74篇
  2018年   103篇
  2017年   102篇
  2016年   126篇
  2015年   74篇
  2014年   91篇
  2013年   198篇
  2012年   122篇
  2011年   131篇
  2010年   59篇
  2009年   72篇
  2008年   74篇
  2007年   77篇
  2006年   50篇
  2005年   59篇
  2004年   41篇
  2003年   43篇
  2002年   22篇
  2001年   8篇
  2000年   10篇
  1999年   10篇
  1998年   3篇
  1997年   5篇
  1996年   3篇
  1995年   1篇
  1994年   3篇
  1991年   1篇
  1990年   2篇
  1988年   2篇
  1987年   1篇
  1986年   3篇
  1984年   4篇
  1983年   2篇
  1982年   2篇
  1981年   1篇
  1980年   2篇
  1979年   3篇
  1976年   8篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1972年   2篇
  1970年   1篇
排序方式: 共有1768条查询结果,搜索用时 15 毫秒
101.
Accessing memories is often accompanied by both positive and negative consequences. For example, practice recognizing some visual images held in memory can improve memory for the practiced images and hurt memory for related images (i.e., recognition‐induced forgetting). However, visual stimuli have been shown to improve memory for older adults by decreasing false memories. This suggests that older adults may be immune to recognition‐induced forgetting and that recognition practice may decrease susceptibility to intrusion errors. We first tested the hypothesis that older adults are immune to recognition‐induced forgetting. We found older adults exhibit recognition‐induced forgetting. Next, we tested the hypothesis that recognition practice decreases older adult's rates of intrusion errors. We found lower intrusion errors for novel objects from practiced categories. This represents a generalizable learning effect; practice recognizing a target object (e.g., your pill bottle) improves the rejection of new lures (e.g., identifying the pill bottle that is not yours).Copyright © 2016 John Wiley & Sons, Ltd.  相似文献   
102.
Latina cancer survivors report higher levels of distress and depression and lower levels of social quality of life and overall health‐related quality of life when compared with all other cancer survivors. Cultural values influence cancer survivorship; however, little research to date has examined how aspects of the Latina culture may be healing during the cancer journey. Therefore, the purpose of this article is to present findings from a qualitative study exploring the influence of culture on quality of life for Latina breast cancer survivors. The authors use consensual qualitative research to understand the lived experiences of Latina breast cancer survivors.  相似文献   
103.
Digital technology and its many uses form an emerging domain of creative expression for adolescents and young adults. To date, measures of self-reported creative behavior cover more traditional forms of creativity, including visual art, music, or writing, but do not include creativity in the digital domain. This article introduces a new measure, the Creative Behavior Questionnaire: Digital (CBQD), which assesses self-reported creative behavior in the digital domain. High school students (N = 230) completed the CBQD, as well as several other measures of creativity and personality. Factor analysis revealed 3 factors: digital creativity achievement, school-based everyday creativity, and self-expressive digital creativity. Factor-based scales showed expected correlations with other creativity measures, as well as Big-Five personality traits and Unconventionality, supporting construct validity. Results indicate that the CBQD can be used as an independent or a supplemental measure of creative behavior.  相似文献   
104.
105.
Objective: This study, which is part of a larger longitudinal study focusing on the biopsychosocial functioning of emerging adults with type 1 diabetes, examined how perceived personal control, coping and HbA1c relate to one another over time.

Design and main outcome measures: Emerging adults with type 1 diabetes (18–30 years old) participated in a two-wave longitudinal study spanning five years (N = 164 at Time 1). At both times, patients completed questionnaires on perceived control and coping (i.e. diabetes integration, avoidant coping and passive resignation). HbA1c values were obtained from treating clinicians. We investigated the directionality of effects using cross-lagged path analysis.

Results: Higher HbA1c values predicted relative decreases in diabetes integration and increases in avoidant coping five years later. Feeling less in control over diabetes predicted the use of passive coping over time. Passive coping predicted a relative decrease in perceived control five years later.

Conclusion: These findings indicate that tackling poor glycaemic control is not only important to avoid medical complications but also to prevent patients from resorting to more avoidant coping strategies. Furthermore, given the longitudinal interplay between perceived control and passive coping, it is important that intervention efforts include both cognitive and behavioural components to be effective.  相似文献   

106.
Social and geographic displacement is a global phenomenon that precipitates novel stressors and disruptions that intersect with long-standing familial and social roles. Among the displaced are war-torn Iraqi refugee families, who must address these new obstacles in unconventional ways. This study explores how such disruptions have influenced associations between gender and apparent self-worth experienced by Iraqi refugee families upon relocation to the USA. Further, the psychosocial mechanisms requisite of any novel approach to a new social construct are explored and reveal that production in the family is at the core of instability and shifting power dynamics during resettlement, preventing family members from “seeing the life” in the USA that they had envisioned prior to immigration. Over 200 semi-structured qualitative interviews with Iraqi participants and mental health providers were conducted over the course of the study, which demonstrate a plasticity among social roles in the family and community that transcends the notion of a simple role reversal, and illustrate the complex positionalities that families under stress must approximate during such physical and social displacement.  相似文献   
107.
Because complaints of diminished concentration and memory are among the most common health symptoms reported by Gulf War (GW) veterans with unexplained illnesses, this study investigated neuropsychological functions among GW veterans and controls. Relationships between neuropsychological performance, severity of posttraumatic stress disorder (PTSD) symptomatology, and exposure to chemical–biological warfare agents (CBW) were assessed. Participants were 225 veterans recruited from three cohorts: GW-deployed veterans from Ft. Devens, MA ( n = 141) and New Orleans, LA (n = 37), and Germany-deployed veterans from a Maine National Guard unit (n = 47). A comprehensive evaluation was completed. Severity of subclinical PTSD symptomatology was significantly related to scores on specific neuropsychological tests. PTSD symptom severity in GW-deployed veterans was found to be greater and associated with a broader range of neuropsychological deficits than in Germany-deployed veterans. PTSD severity was associated with lower performance on a range of neuropsychological tasks, whereas CBW exposure contributed to performance deficits on specific cognitive tasks.  相似文献   
108.
109.
Sounds deviating from an otherwise repeated stream of task-irrelevant auditory stimuli (deviant sounds among standard sounds) are known to capture attention and impact negatively on ongoing behavioral performance (behavioral oddball distraction). Traditional views consider such distraction as the ineluctable consequence of the deviant sounds' low probability of occurrence relative to that of the standard. Contrary to this contention, recent evidence demonstrates that distraction by deviant sounds is not obligatory and occurs only when sounds (standards and deviants), though to be ignored, act as useful warning cues by providing information as to whether and when a target stimulus is to be presented (Parmentier, Elsley, & Ljungberg, 2010). The present study aimed to extend this finding by disentangling the roles of event information (target's probability of occurrence) and temporal information (target's time of occurrence). Comparing performance in a cross-modal oddball task where standard and deviant sounds provided temporal information, event information, both, or none, we found that distraction by deviant sounds emerged when sounds conveyed event information. These results suggest that unexpected changes in a stream of sounds yield behavioral distraction to the extent that standards and deviants carry relevant goal-directed information, specifically, the likelihood of occurrence of an upcoming target. (PsycINFO Database Record (c) 2012 APA, all rights reserved).  相似文献   
110.
Next generation sequencing technology is increasingly utilized in oncology with the goal of targeting therapeutics to improve response and reduce side effects. Interpretation of tumor mutations requires sequencing of paired germline DNA, raising questions about incidental germline findings. We describe our experiences as part of a research team implementing a protocol for whole genome sequencing (WGS) of tumors and paired germline DNA known as the Michigan Oncology Sequencing project (MI-ONCOSEQ) that includes options for receiving incidental germline findings. Genetic counselors (GCs) discuss options for return of results with patients during the informed consent process and document family histories. GCs also review germline findings and actively participate in the multi-disciplinary Precision Medicine Tumor Board (PMTB), providing clinical context for interpretation of germline results and making recommendations about disclosure of germline findings. GCs have encountered ethical and counseling challenges with participants, described here. Although GCs have not been traditionally involved in molecular testing of tumors, our experiences with MI-ONCOSEQ demonstrate that GCs have important applicable skills to contribute to multi-disciplinary care teams implementing precision oncology. Broader use of WGS in oncology treatment decision making and American College of Medical Genetics and Genomics (ACMG) recommendations for active interrogation of germline tissue in tumor-normal dyads suggests that GCs will have future opportunities in this area outside of research settings.  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