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   3969篇
  免费   484篇
  国内免费   172篇
  2024年   21篇
  2023年   104篇
  2022年   66篇
  2021年   136篇
  2020年   215篇
  2019年   232篇
  2018年   182篇
  2017年   214篇
  2016年   230篇
  2015年   165篇
  2014年   165篇
  2013年   498篇
  2012年   122篇
  2011年   154篇
  2010年   100篇
  2009年   160篇
  2008年   161篇
  2007年   155篇
  2006年   146篇
  2005年   140篇
  2004年   103篇
  2003年   103篇
  2002年   102篇
  2001年   100篇
  2000年   77篇
  1999年   84篇
  1998年   62篇
  1997年   48篇
  1996年   51篇
  1995年   50篇
  1994年   44篇
  1993年   51篇
  1992年   39篇
  1991年   39篇
  1990年   41篇
  1989年   23篇
  1988年   27篇
  1987年   23篇
  1986年   20篇
  1985年   19篇
  1984年   14篇
  1983年   10篇
  1982年   17篇
  1981年   11篇
  1980年   16篇
  1979年   16篇
  1978年   28篇
  1977年   19篇
  1976年   17篇
  1975年   3篇
排序方式: 共有4625条查询结果,搜索用时 46 毫秒
991.
In opaque orthographies, the activation of orthographic and phonological codes follows distinct time courses during visual word recognition. However, it is unclear how orthography and phonology are accessed in more transparent orthographies. Therefore, we conducted time course analyses of masked priming effects in the transparent Dutch orthography. The first study used targets with small phonological differences between phonological and orthographic primes, which are typical in transparent orthographies. Results showed consistent orthographic priming effects, yet phonological priming effects were absent. The second study explicitly manipulated the strength of the phonological difference and revealed that both orthographic and phonological priming effects became identifiable when phonological differences were strong enough. This suggests that, similar to opaque orthographies, strong phonological differences are a prerequisite to separate orthographic and phonological priming effects in transparent orthographies. Orthographic and phonological priming appeared to follow distinct time courses, with orthographic codes being quickly translated into phonological codes and phonology dominating the remainder of the lexical access phase.  相似文献   
992.
In this paper we investigate the logical consequences of the common understanding of amateurism in the context of big-time US college athletics, and in so doing, illustrate a method based on linguistic analysis and logic. The initial thrust of the paper centres on the term ‘amateur’ as presupposed by the late Professor Brand in his attempt to justify the ‘business’ of NCAA-sponsored Division I sports by decoupling the ‘participants from the enterprise’. Next, we examine a more rigorous definition of the term ‘amateur’ in order to show more clearly the difficulties posed by the current situation in college athletics. Additionally, our use of linguistic analysis exposes a flaw in the NCAA's recent move to amend by-law 12.02 in an attempt to avoid the charge of exploitation. Lastly, we put forth a new proposal for better dealing with the central issues swirling around the NCAA as it strives to formulate sound policy at this ‘tectonic’ juncture of players, fans, college programmes and academic integrity.  相似文献   
993.
We evaluated the extent to which discriminative stimuli (S(D)s) facilitate differential responding during multielement functional analyses. Eight individuals, all diagnosed with mental retardation and referred for assessment and treatment of self-injurious behavior (SIB) or aggression, participated. Functional analyses consisted of four or five assessment conditions alternated in multielement designs. Each condition was initially correlated with a specific therapist and a specific room color (S(D)s), and sessions continued until higher rates of target behaviors were consistently observed under a specific test condition. In a subsequent analysis, the programmed S(D)s were removed (i.e., all conditions were now conducted by the same therapist in the same room), and sessions continued until differential responding was observed or until twice as many sessions were conducted with the S(D)s absent (as opposed to present), whichever came first. Results indicated that the inclusion of programmed S(D)s facilitated discrimination among functional analysis conditions for half of the participants. These results suggest that the inclusion of salient cues may increase either the efficiency of functional analyses or the likelihood of obtaining clear assessment outcomes.  相似文献   
994.
995.
This study replicates and extends the work of Watson (1996) in which a sign eliminated graffiti when posted on bathroom walls. The present study investigated the effects of three different signs on walls in six men's bathrooms located on a university campus. Posting the signs was followed by the elimination or sharp reduction of graffiti. Removal of the signs was followed by a resurgence of graffiti.  相似文献   
996.
Functional analysis results for multiple topographies of aberrant behavior were graphed in an aggregate fashion and then separately for 48 clients. The results indicated that multiple topographies of behavior may be maintained by different contingencies. These results indicate that graphing functional analysis data in an aggregate fashion and then separately may improve the accuracy of their interpretation.  相似文献   
997.
This study describes differences in course and outcome, defined by GSI (SCL-90) at admission, discharge, and one‐year follow‐up, in 458 patients receiving in‐patient treatment for long‐standing symptom and/or personality disorders.
A K-mean cluster analysis identified seven subgroups of patients, representing four clinical distinct, meaningful patterns of change: early improvement, late improvement, relapsing after discharge, and a severe chronic course.
Main findings: the subgroups had unique correlates among socio-demographic, diagnostic, and treatment-related characteristics. One of the relapsing groups had a high rate of Cluster C personality disorders, whereas the other had low participation in the anxiety programme. The group with severe chronic course showed occupational maladjustment and high number of both Axis I and II disorders.
Implications: anxiety patients should participate in anxiety-treatment programmes, Cluster C patients should be followed and monitored for relapse, and severe chronic patients should be offered specialised treatment for their co‐existing substance abuse and/or eating disorders.  相似文献   
998.
In a sample of 405 children assessed in kindergarten through the seventh grade, we determined the basic developmental trajectories of mother-reported and teacher-reported externalizing and internalizing behaviors using cross-domain latent growth modeling techniques. We also investigated the effects of race, socioeconomic level, gender, and sociometric peer-rejection status in kindergarten on these trajectories. The results indicated that, on average, the development of these behaviors was different depending upon the source of the data. We found evidence of the codevelopment of externalizing and internalizing behaviors within and across reporters. In addition, we found that African-American children had lower levels of externalizing behavior in kindergarten as reported by mothers than did European-American children but they had greater increases in these behaviors when reported by teachers. Children from homes with lower SES levels had higher initial levels of externalizing behaviors and teacher-reported internalizing behaviors. Males showed greater increases in teacher-reported externalizing behavior over time than did the females. Rejected children had trajectories of mother-reported externalizing and internalizing behavior that began at higher levels and either remained stable or increased more rapidly than did the trajectories for non-rejected children which decreased over time.  相似文献   
999.
大学新生学科选择结果与人格特征关系的研究   总被引:1,自引:0,他引:1  
该研究对17个系的1532名大学新生专业学科与其人格特点的关系用聚类分析和多元方差分析的方法进行了探索研究.聚类分析结果将男生根据人格特点分为理工科类、社会科学类中间科系"的特殊类.将女生也分为三大类,即与男生类似的社会科学类以及另外两类与学科分类隶属关系复杂的类别.男生对理工科和社会科学专业的选择结果与其人格特点有较明显的一致关系,而女生对社会科学专业的选择结果与其人格特点有较明显的一致关系.  相似文献   
1000.
在3个月的时间内对425名大学新生进行3次追踪测量,以考察时间管理倾向、手机依赖与无聊倾向之间的因果顺序和发展变化趋势。结果发现:(1)大学新生的无聊倾向与时间管理倾向呈同时性和继时性的负相关,并与手机依赖水平呈同时性和继时性的正相关。(2)T1和T2的无聊倾向分别正向预测T2和T3的手机依赖,并分别负向预测T2和T3的时间管理倾向;T1的时间管理倾向负向预测T2的无聊倾向;T2的手机依赖正向预测T3的无聊倾向。结论:无聊倾向分别与手机依赖、时间管理倾向之间存在相互预测关系。  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