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   3537篇
  免费   170篇
  国内免费   1篇
  3708篇
  2024年   9篇
  2023年   40篇
  2022年   35篇
  2021年   56篇
  2020年   69篇
  2019年   119篇
  2018年   138篇
  2017年   142篇
  2016年   154篇
  2015年   119篇
  2014年   106篇
  2013年   406篇
  2012年   207篇
  2011年   209篇
  2010年   120篇
  2009年   99篇
  2008年   153篇
  2007年   143篇
  2006年   117篇
  2005年   144篇
  2004年   135篇
  2003年   126篇
  2002年   92篇
  2001年   62篇
  2000年   70篇
  1999年   47篇
  1998年   34篇
  1997年   24篇
  1996年   29篇
  1995年   18篇
  1994年   12篇
  1993年   28篇
  1992年   25篇
  1991年   30篇
  1990年   33篇
  1989年   23篇
  1988年   29篇
  1987年   25篇
  1986年   27篇
  1985年   25篇
  1984年   30篇
  1983年   21篇
  1982年   16篇
  1979年   18篇
  1978年   13篇
  1977年   15篇
  1976年   9篇
  1974年   13篇
  1973年   9篇
  1968年   8篇
排序方式: 共有3708条查询结果,搜索用时 8 毫秒
91.
The aim of our study is to analyze the influence of the make up of the siblings on the parents' educational practices and also on the meaning of education to preadolescents. The results gathered from a sample of 88 preadolescents and their mothers show a difference of parental educational practices according to the make up of the siblings (relaxation of the practices with the youngest). The study of the meaning of education to preadolescents shows that only children are the most in accordance with their mothers. Children from large families imagine a future education further from mothers' educational practices.  相似文献   
92.
We compare fork arrow logic, an extension of arrow logic, and its natural first-order counterpart (the correspondence language) and show that both have the same expressive power. Arrow logic is a modal logic for reasoning about arrow structures, its expressive power is limited to a bounded fragment of first-order logic. Fork arrow logic is obtained by adding to arrow logic the fork modality (related to parallelism and synchronization). As a result, fork arrow logic attains the expressive power of its first-order correspondence language, so both can express the same input–output behavior of processes.  相似文献   
93.
OBJECTIVE: The aim of this pilot study was to compare a German (Bavaria) and an American (North Dakota) sample of women suffering from compulsive buying. METHOD: Thirty-eight German and 39 American female compulsive buyers were screened with the Compulsive Buying Scale (CBS), and the Yale-Brown Obsessive Compulsive Scale-Shopping Version (Y-BOCS-SV) prior to entering a group treatment study. Psychiatric co-morbidity was assessed with the Structured Clinical Interview for DSM-IV Axis I disorders (SCID). RESULTS: There were no statistically significant differences between the German sample and the American sample with regard to age (mean 43.7 and 45 years, respectively), and with regard to the scores on the CBS and the Y-BOCS-SV. A high lifetime co-morbidity rate with Axis I disorders, especially mood disorders, anxiety disorders, substance use disorders, OCD, and binge eating disorder was detected in both samples. Almost all participants met criteria for at least one lifetime Axis I disorder. However, German compulsive buyers showed significantly higher current prevalence rates of any affective disorder, and higher current and lifetime prevalence rates of any anxiety disorder and somatoform disorder. In addition, German compulsive buyers were significantly more likely to have more than one Axis I disorder. CONCLUSION: The groups did not differ with regard to age and with regard to the severity of compulsive buying and showed a high co-morbidity with Axis I disorders. However, the German compulsive buying sample presented with significantly more psychiatric co-morbidity compared to the American sample. Further research is needed to provide a better understanding of this disorder in general and cross-culturally.  相似文献   
94.
健康城市--发展历程、建设方法和评估机制   总被引:4,自引:0,他引:4  
健康城市的研究、监督和评价,必须建立在科学的方法和方法论基础上.调查既往导致健康不公平的因素,收集社会人口数据及编辑相关资料,总结市政当局直接或间接处理公平性问题的政策及程序,选择上述政策可产生影响和不能影响的政策进行比较,评价影响参与健康城市项目的各个因素,评价主观与客观的效益,寻求促进健康公平性的措施,这就是健康城市的评价与建设要回答的问题.  相似文献   
95.
This article explores the challenges presented by the mandate for evidence‐based practice for family therapists who identify with the philosophical stance of social construction. The history of psychotherapy outcome research is reviewed, as are current findings that provide empirical evidence for an engaged, dialogic practice. The authors suggest that the binary between empiricism and social construction may be unhinged by understanding empiricism as a particular discursive frame (i.e., a particular way of talking, acting, and being in the world), one of many available as a way of understanding and talking about our work. Through a case vignette, the authors introduce the evidence‐based practice of Feedback Informed Treatment as an elaboration of social construction, and as an example of bridging the gap between the discursive frames of empiricism and social construction.  相似文献   
96.
97.
The aim of this study was to identify the cascade of effects leading from alterations in force generation around the ankle joint to increased plantar pressures under the forefoot. Gait analysis including plantar pressure measurement was performed at an individually preferred and a standardized, imposed gait velocity in diabetic subjects with polyneuropathy (n = 94), without polyneuropathy (n = 39) and healthy elderly (n = 19). The plantar flexion moment at 40% of the stance phase was negatively correlated with the displacement rate of center of pressure (r = ?.749, p < .001 at the imposed, and r = ?.693, p < .001 at the preferred gait velocity). Displacement rate of center of pressure was strongly correlated with forefoot loading (r = ?.837, p < .001 at the imposed, and r = ?.731, p < .001 at the preferred gait velocity). People with a relatively high plantar flexion moment at 40% of the stance phase, have a faster forward transfer of center of pressure and consequently higher loading of the forefoot. This indicates that interventions aimed at increasing the control of the roll-off of the foot may contribute to a better plantar pressure distribution.  相似文献   
98.
Socially desirable responding may cause differences between preelection polls and election outcomes. Bias-free preelection polls are, however, important because they influence election outcomes. Benefiting from a unique opportunity, we experimentally controlled social desirability using the Crosswise Model in a poll prior to the German federal election in 2013. We found that due to strategic voting, outcome expectations were related to voting intentions; the election outcome was therefore likely distorted by social desirability bias in preelection polls. We recommend using indirect questioning techniques whenever a vote for at least one of the competing parties may be perceived as socially undesirable.  相似文献   
99.
The invention of victimization surveys is often presented as a synthesis of the two theoretical attitudes that, supposedly, dominated the 1960s debate over official crime statistics: realism and social constructionism. This paper turns this genesis story on its head. Using original archives, I argue that victimization surveys responded to organizational opportunities in the field of applied research. It was only after the fact that two of their architects seized the debate on crime measurement to broadcast their invention. In so doing they strategically recast the terms of this debate into a binary division between two antithetical social ontologies. This case is used to discuss how social scientists come to reinterpret and misunderstand their history.  相似文献   
100.
This study investigated the role of individual resources, notably self-efficacy, gratitude, and hope, in subjective well-being of white dormitory students at a historically white institution of higher learning. Using a convenience sample of white students (N?=?227), we tested the role of generalised self-efficacy, gratitude, and hope as indicators of a latent factor, labelled personal resources, in a structural equation model with subjective well-being as the latent output variable, measured by self-esteem and satisfaction with life. Path analyses indicated a reasonable fit between the data and our hypothesised theoretical model which proposed positive relations between levels of generalised self-efficacy, gratitude, dispositional hope, self-esteem and satisfaction with life. White students were psychologically doing well, considering above-midpoint levels obtained for levels of generalised self-efficacy, gratitude, dispositional hope, and satisfaction with life However, scores obtained for self-esteem and adult dispositional hope were below the mid-point and neutral respectively, indicating that White students do not agree that they experience high levels of these two psychological strengths. White female students experienced higher levels of hope, gratitude, and life satisfaction, while no significant gender differences were found for generalised self-efficacy and self-esteem. The results of this study highlight the potential for using psychological strengths to promote well-being in racially diverse students.  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