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   4899篇
  免费   295篇
  国内免费   88篇
  5282篇
  2025年   11篇
  2024年   114篇
  2023年   127篇
  2022年   88篇
  2021年   166篇
  2020年   248篇
  2019年   274篇
  2018年   217篇
  2017年   240篇
  2016年   247篇
  2015年   182篇
  2014年   192篇
  2013年   538篇
  2012年   144篇
  2011年   171篇
  2010年   112篇
  2009年   174篇
  2008年   178篇
  2007年   176篇
  2006年   165篇
  2005年   160篇
  2004年   118篇
  2003年   110篇
  2002年   113篇
  2001年   107篇
  2000年   84篇
  1999年   91篇
  1998年   72篇
  1997年   54篇
  1996年   54篇
  1995年   51篇
  1994年   46篇
  1993年   54篇
  1992年   41篇
  1991年   40篇
  1990年   44篇
  1989年   24篇
  1988年   28篇
  1987年   25篇
  1986年   21篇
  1985年   20篇
  1984年   14篇
  1983年   12篇
  1982年   18篇
  1981年   12篇
  1980年   17篇
  1979年   17篇
  1978年   30篇
  1977年   19篇
  1976年   17篇
排序方式: 共有5282条查询结果,搜索用时 0 毫秒
91.
    
Organizational occupational health interventions (OOHIs) that are perceived by employees as relevant for their workplace are more likely to be implemented successfully, yet little is known about the conditions that produce such perceptions. This study identifies the conditions that create a perception among employees that an intervention fits their organization as well as the conditions that result in low levels of perceived fit. We used two-wave data from 40 Danish preschools that underwent a quasi-experimental OOHI. Perceived fit was assessed through employee ratings at follow-up, while survey responses from implementation team members at five time points were used to assess four context and 14 process factors. The results of a coincidence analysis showed that high levels of perceived fit were achieved through two paths. Each path consisted of a lack of co-occurring changes together with either very high levels of managerial support (path_1) or a combination of implementation team role clarity, staff involvement, and team learning (path_2). In contrast, low levels of perceived fit were brought about by single factors: limited leader support, low degree of role clarity, or concurrent organizational changes. The findings reveal the complexity involved in implementing OOHIs and offer insights into reasons they may fail.  相似文献   
92.
    
In this study, we used think-aloud protocols to compare how 44 fingerprint examiners and 44 novices analysed prints. Through this qualitative approach, we discovered several notable differences. Experts focused on local ridge characteristics and minute details of each print, while novices concentrated more on global features. Additionally, experts demonstrated adaptability in dynamically planning their systematic approach and integrated specialised knowledge of causal factors affecting prints. In contrast, the novices relied more on general intuition. Furthermore, experts consistently displayed critical thinking and metacognition, carefully weighing the reliability of each identifying feature before making conclusions. However, there was variation in the precise evaluation approaches and conclusion thresholds among experts. Overall, these findings reveal the substantial complexity, adaptability and domain knowledge enhancing expert performance in fingerprint analysis. We discuss implications including balancing training of intuitive and analytical reasoning, implementing more detailed documentation, incorporating falsification practices and driving statistical advancements to strengthen evidence evaluation.  相似文献   
93.
    
This article introduces a novel theoretical framework for addressing epistemic injustice—a phenomenon where certain groups or individuals are systematically excluded from knowledge creation and dissemination processes—by employing ontological relativity and conceptual analysis. “Ontological relativity” refers to a philosophical perspective that posits our understanding of reality as being shaped by our toolbox of concepts, categories, language, and social practices; “conceptual analysis” is a method of inquiry that involves the rigorous examination and deconstruction of a particular concept or set of concepts in order to uncover their constituent elements, relationships, and underlying assumptions. To exemplify the effectiveness of the ontology-based approach, two paradigmatic applications are explored: (a) educational practices and (b) clinical practice and access to health care. Through the presentation of these applications and the step-by-step illustration of the applied methodology, the aim of the article is to showcase the efficacy of ontology in tackling epistemic injustices, suggesting innovative paths for future research in this domain.  相似文献   
94.
    
Does the configuration of personal values in teams matter to team performance? Drawing from research on team composition and personal values, we conduct two studies in an effort to answer this question. In Study 1, we develop a shorter and more reliable instrument to measure personal values, the Variable Length Values Inventory (VLVI), which is unique in that the overall length of the scale can be varied; the instrument can be as short as 26 items or as long as 60 items, depending on the research question(s) of interest. In Study 2, we utilize the VLVI to test the impact of team members' values (i.e., benevolence and achievement values) on team performance. Results from 48 teams demonstrated that team member benevolence values and achievement values were related to team performance. Additionally, the achievement values of the team leader impacted performance above and beyond the influence of other team members' values. Study 2 contributes to our understanding of team composition by examining the personal values of team members and the team leader.  相似文献   
95.
    
There is substantial evidence that children's apparent omission of grammatical morphemes in utterances such as “She play tennis” and “Mummy eating” is in fact errors of commission in which contextually licensed unmarked forms encountered in the input are reproduced in a context-blind fashion. So how do children stop making such errors? In this study, we test the assumption that children's ability to recover from error is related to their developing sensitivity to longer-range dependencies. We use a pre-registered corpus analysis to explore the predictive value of different cues with regards to children's verb-marking errors and observe a developmental pattern consistent with this account. We look at context-independent cues (the identity of the specific verb being used) and at the relative value of context-dependent cues (the identity of the specific subject+verb sequence being used). We find that the only consistent effect across a group of 2- to 3-year-olds and a group of 3- to 4-year-olds is the relative frequency of unmarked forms of specific subject+verb sequences being used. The relative frequency of unmarked forms of the verb alone is predictive only in the younger age group. This is consistent with an account in which children recover from making errors by becoming progressively more sensitive to context, at first the immediately preceding lexical contexts (e.g., the subject that precedes the verb) and eventually more distant grammatical markers (e.g., the fronted auxiliary that precedes the subject in questions).  相似文献   
96.
    
Although a demand analysis is helpful for identifying potential establishing operations for the functional analysis (FA) demand condition, it may not always be practical due to time constraints. A potential alternative is the Negative Reinforcement Rating Scale (NRRS), an indirect assessment tool that may serve as a time efficient alternative to a demand analysis. The experimenter assessed the reliability and validity of the NRRS for 5 individuals with autism spectrum disorder who exhibited problem behavior. Multiple types of interrater reliability were assessed across 2 informants, and NRRS outcomes were compared to a subsequent demand analysis and FA to assess its validity. Reliability was high (M = 84%) for NRRS numerical ratings of categories but low (M = 32.9%) for specific examples provided. NRRS-identified highly aversive tasks yielded better correspondence with demand analysis outcomes than did NRRS-identified less aversive tasks.  相似文献   
97.
    
Functional Communication Training (FCT) involves arranging extinction for problem behavior and reinforcement for a more desirable, functionally equivalent, communicative response (FCR). Although effective under ideal arrangements, the introduction of delays to reinforcement following the FCR can result in increased problem behavior. Austin and Tiger (2015) showed that for individuals whose problem behavior was sensitive to multiple sources of reinforcement, providing access to alternative, functional reinforcers during delays mitigated this increase in problem behavior during delay fading. The current study replicated the procedures of Austin and Tiger with 2 individuals displaying multiply controlled problem behavior. Providing alternative functional reinforcers reduced problem behavior during 10-min delays for both participants without requiring delay fading.  相似文献   
98.
    
Abstract

Our study aimed to analyze movement control strategies using predefined criteria for amplitude and differences in these strategies between children with and without DCD. Children with (n?=?28) and without DCD (n?=?15) were included. A video-observation-tool was used to score the moving body parts during a Wii Fit slalom task over multiple time points. Two-step cluster analysis was used to extract distinct movement strategies. Two different movement strategies were identified that were independently validated by a measure of task performance and a subjective mark of quality of the movement. Initial differences between groups and changes over time toward the more successful strategy were found in both groups, albeit in a different percentage. This study shows that the more efficient movement strategy is seen in the majority of the TD children and only in a small number of children with DCD, even after practice.  相似文献   
99.
100.
    
The purpose of this research is to construct and validate a multi-dimensional scale of Anti-social Behavior (hereafter ASB) in a Western higher education context (i.e., USA). To achieve this, four studies, each with a different sample, were performed. Study 1 (n = 150) followed an exploratory design to generate a pool of potential items measuring ASB. Study 2 (n = 254) explored the dimensionality of the items produced in Study 1 using exploratory factor analysis (EFA) and reliability measures. Study 3 (n = 654) confirmed the factorial structure from Study 2 and assessed the measurement model invariance using structural equation modeling (SEM). Finally, Study 4 (n = 287) assessed the predictive validity of the ASB measure through testing a hypothetical path model linking ASB to narcissism and Machiavellianism via an SEM procedure. In total, our research findings conclude that the ASB measurement model is a two-factor multi-dimensional structure comprising: Interpersonal Antagonistic Behavior (six items) as well as Indirect Distractive Behavior (four items). The research and practical implications for universities are thereafter discussed.  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