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   2104篇
  免费   138篇
  2242篇
  2023年   21篇
  2021年   38篇
  2020年   55篇
  2019年   52篇
  2018年   82篇
  2017年   110篇
  2016年   90篇
  2015年   63篇
  2014年   83篇
  2013年   213篇
  2012年   131篇
  2011年   124篇
  2010年   72篇
  2009年   41篇
  2008年   99篇
  2007年   91篇
  2006年   62篇
  2005年   61篇
  2004年   48篇
  2003年   32篇
  2002年   62篇
  2001年   29篇
  2000年   32篇
  1999年   25篇
  1998年   14篇
  1997年   18篇
  1996年   15篇
  1995年   13篇
  1994年   15篇
  1993年   13篇
  1992年   23篇
  1991年   14篇
  1989年   16篇
  1988年   17篇
  1987年   15篇
  1985年   23篇
  1984年   25篇
  1983年   12篇
  1981年   15篇
  1980年   17篇
  1979年   14篇
  1978年   16篇
  1977年   19篇
  1976年   16篇
  1975年   19篇
  1973年   16篇
  1971年   12篇
  1970年   12篇
  1968年   18篇
  1967年   16篇
排序方式: 共有2242条查询结果,搜索用时 15 毫秒
131.
This commentary considers the paper by Furley and Memmert (2010) who sought to test the respective validities of the specific processing and cognitive adaptation hypotheses. That they found no evidence of a difference between experienced basketball players and nonathletes on the Corsi block task, a measure of spatial memory, led them to infer support for the specific processing hypothesis, namely that differences between experts and novices manifest themselves only in processes related specifically to the domain of expertise. An alternative interpretation is offered, indicating possible confounds and referring to recent research that suggests Corsi block and dynamic spatial tasks depend upon different neuronal networks.  相似文献   
132.
This article examines the role that personality variables and processes play in people's efforts to manage their public images. Although most research on self-presentation has focused on situational influences, people differ greatly in the degree to which they care about others' impressions of them, the types of impressions they try to convey, and their evaluations of their self-presentational effectiveness. Personality constructs such as public self-consciousness, approval motivation, and fear of negative evaluation are associated with the motive to manage one's impressions, and people who differ in self-disclosure and desire for privacy differentially reveal information about themselves to others. Other variables relating to people's self-concepts, interpersonal goals, and traits influence the construction of specific images. Finally, the extent to which people believe they are capable of making desired impressions influences their impression management strategies and how they respond to other people's evaluations.  相似文献   
133.
This paper tests the efficacy of an intervention program in virtual format intended to train studying and self-regulation strategies in university students. The aim of this intervention is to promote a series of strategies which allow students to manage their learning processes in a more proficient and autonomous way. The program has been developed in Moodle format and hosted by the Virtual Campus of the University of Oviedo. The present study had a semi-experimental design, included an experimental group (n=167) and a control one (n=206), and used pretest and posttest measures (self-regulated learning strategies' declarative knowledge, self-regulated learning macro-strategy planning-execution-assessment, self-regulated learning strategies on text, surface and deep learning approaches, and academic achievement). Data suggest that the students enrolled in the training program, comparing with students in the control group, showed a significant improvement in their declarative knowledge, general and on text use of learning strategies, increased their deep approach to learning, decreased their use of a surface approach and, in what concerns to academic achievement, statistically significant differences have been found in favour of the experimental group.  相似文献   
134.
This paper describes the development of a self-report scale for adolescents to assess positive youth development values. It presents a substantial number of psychometric results performed on a sample of 2,400 adolescents (1,068 boys and 1,332 girls) from 12 to 17 years ( M = 14.73, SD = 1.25), who were studying secondary education in Western Andalusia. The results provide evidence of the psychometric quality of items, cross-validity of a structure of eight first-order factors and three second-order factors, obtained through exploratory and confirmatory factor analysis, and adequate reliability. This study concludes that the scale presents adequate evidence of validity and reliability that allows assessment, especially in school contexts, of a broad set of values of particular relevance to positive youth development.  相似文献   
135.
Mosaic chromosomal abnormalities are relatively common. However, mosaicism may be missed due to multiple factors including failure to recognize clinical indications and order appropriate testing, technical limitations of diagnostic assays, or sampling tissue (s) in which mosaicism is either not present, or present at very low levels. Blood leukocytes have long been the “gold standard” sample for cytogenetic analysis; however, the culturing process for routine chromosome analysis can complicate detection of mosaicism since the normal cell line may have a growth advantage in culture, or may not be present in the cells that produce metaphases (the lymphocytes). Buccal cells are becoming increasingly utilized for clinical analyses and are proving to have many advantages. Buccal swabs allow for simple and noninvasive DNA collection. When coupled with a chromosomal microarray that contains single nucleotide polymorphic probes, analysis of buccal cells can maximize a clinician’s opportunity to detect cytogenetic mosaicism. We present three cases of improved diagnosis of mosaic aberrations using buccal specimens for chromosomal microarray analysis. In each case, the aberration was either undetectable in blood or present at such a low level it likely could have gone undetected. These cases highlight the limitations of certain laboratory methodologies for identifying mosaicism. We also present practice implications for genetic counselors, including clinic workflow changes and counseling approaches based on increasing use of buccal samples.  相似文献   
136.
The assessment of varied psychiatric disorders, including obsessive–compulsive disorder (OCD), is shifting towards the use of evidence-based assessments (EBAs). This shift has fostered the development, validation and adaptation of several measures to rate obsessive–compulsive symptoms and other related problematic areas such as functional impairment or family attitudes among others. The aim of this paper is to present a systematic review of psychometric studies on pediatric OCD-specific measures to classify these according to assessment evidence-based criteria. Selection criteria that determined which studies were included in the review were: (1) analyzing an OCD measure and (2) including participants’ age being 18 years or younger. The literature search procedure was conducted in Medline, PsycINFO, PsycARTICLES, ERIC, Cochrane Library, and Scholar Google databases and enabled us to locate 42 studies which analyzed psychometric properties of 14 OCD measures studied in children and adolescents. Instruments were grouped into the following assessment areas: symptom presence and severity, functional impairment, family functioning and cognitive dimensions of OCD. Psychometric data regarding internal structure, internal consistency, reliability, validity and diagnostic precision were also reported. Further, measures were classified as well-established, approaching well-established and promising assessments in terms of reliability and validity. We concluded that the assessment of OCD in pediatric populations is a growing field that in a short-medium term could provide a wide variety of EBAs for the evaluation obsessive–compulsive symptoms and other OCD-related dimensions. The paper concludes by highlighting directions for future research.  相似文献   
137.
Parental presence is often employed to alleviate distress in children within the context of surgery under general anesthesia. The critical component of this intervention may not be the presence of the parent per se, but more importantly the behaviors in which the parent and child engage when the parent is present. The purpose of the current study was to examine the sequential and reciprocal relationships between parental behaviors and child distress during induction of general anesthesia. Participants were 32 children (3–6 years) receiving dental surgery as a day surgery procedure, and their parents. A modified Child Adult Medical Procedures Interaction Scale-Revised was used to code parent and child behaviors. Initial child distress led to increased parental provision of reassurance and decreased provision of physical comfort. Our findings may inform the development of preoperative preparation programs whereby parents can be appropriately educated about what behaviors will be helpful/unhelpful for their child during induction of general anesthesia.  相似文献   
138.
139.

High productivity by behavioral health consultants (BHC) is a defining aspect of the primary care behavioral health (PCBH) model to maximize access to care and is often measured by patient volume. Studies of productivity in health care settings suggest a single productivity target may not be optimal. We used a Delphi method to obtain expert consensus on an operational definition of high productivity by BHCs in the PCBH model. Clinicians, managers, and researchers in PCBH were recruited to participate in a multi-round survey using a modified Delphi technique and develop consensus on PCBH productivity metrics. Ten participants completed all three survey rounds and rated 28 metrics. After three rounds, two direct metrics (average number of billable BHC visits each day; number of patients seen per day) received at least 80% consensus as “Essential”, two received at least 50%, and five received less than 50%. One influencer (level of integration at the practice) received at least 80% consensus as “Very Much” influential, 19 received at least 50%, and eight items received less than 50%. Several themes arose from participant comments. PCBH productivity can be interpreted as being high volume. Numerous practice factors influence how productive a BHC may be. Future studies should determine the feasibility of our metrics in clinical practice, establish productivity expectations based on patient needs and clinic resources, and identify patient-, clinician-, or practice-level moderators of productivity.

  相似文献   
140.
Journal of Child and Family Studies - The aim of this study was to evaluate dyadic effects among siblings by testing an actor–partner interdependence model of associations between...  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