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   10767篇
  免费   192篇
  国内免费   2篇
管理学   1493篇
民族学   63篇
人才学   3篇
人口学   963篇
丛书文集   70篇
理论方法论   1075篇
综合类   226篇
社会学   5484篇
统计学   1584篇
  2020年   152篇
  2019年   250篇
  2018年   261篇
  2017年   371篇
  2016年   260篇
  2015年   199篇
  2014年   253篇
  2013年   1736篇
  2012年   351篇
  2011年   338篇
  2010年   271篇
  2009年   261篇
  2008年   250篇
  2007年   291篇
  2006年   261篇
  2005年   264篇
  2004年   244篇
  2003年   178篇
  2002年   214篇
  2001年   274篇
  2000年   231篇
  1999年   211篇
  1998年   169篇
  1997年   157篇
  1996年   154篇
  1995年   144篇
  1994年   149篇
  1993年   149篇
  1992年   151篇
  1991年   149篇
  1990年   152篇
  1989年   147篇
  1988年   134篇
  1987年   148篇
  1986年   116篇
  1985年   148篇
  1984年   156篇
  1983年   142篇
  1982年   123篇
  1981年   89篇
  1980年   113篇
  1979年   113篇
  1978年   102篇
  1977年   86篇
  1976年   88篇
  1975年   99篇
  1974年   94篇
  1973年   69篇
  1972年   61篇
  1971年   53篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
211.

Skinner (1957) differentiated the roles of the speaker and the listener in a verbal encounter. Although not extensively emphasized, Skinner suggested an individual often behaves verbally even when responding as a listener. Children diagnosed with autism spectrum disorders (ASD) often display the absence of important, and basic verbal repertoires that limit their ability to engage in a variety of social skills or problem-solving skills. Joint control suggests that multiply controlled verbal responding involves functional control of two 2 or more stimuli or verbal operants. This systematic literature review provides a summary of publications specifying the relation and implications of the analysis of joint control and joint control training in the acquisition of multiply controlled, non-speaker behaviors (e.g., selection-based behavior; , sequencing behavior). The synthesis suggests that joint control training presents as a promising analytic tool in guiding interventions to teach complex, multiply controlled verbal and non-verbal repertoires to children diagnosed with autism ASD and/or other developmental disabilities. Recommendations for future research in joint control, as well as the implementation of joint control training, are provided.

  相似文献   
212.
213.
This article summarizes 10 presentations in a discussion group of the 2007 joint international symposium of the International Association for Educational and Vocational Guidance, Society for Vocational Psychology, and National Career Development Association held in Padua, Italy. This discussion group focused on interdisciplinary interactions in vocational guidance. The group engaged in dialogue to address the changing needs of world workers in the dynamic global economy by considering interdisciplinary research and practice implications. This article summarizes the major discussion topics and offers propositions for a way for the vocational guidance profession to move forward on these issues.  相似文献   
214.
Today, young adults are expected to decide between educational, vocational, and job options and to make the best choice possible. Career literatures emphasize the importance of young adults' career decision making but also acknowledge the problems related to making these decisions. The authors argue that career counselors could support clients' intuitive processing of career information and help their clients to develop a positive and flexible view of the self and the environment while diminishing concerns about accountability for and irreversibility of career decisions. The authors argue that career adaptability rather than decision making should become the focal concept of career theory and practice.  相似文献   
215.
本文从历史、语言文字、文学艺术、宗教文化、婚姻家庭、经济发展等方面 ,对土族近十年来的研究状况作了总结 ,可资参考  相似文献   
216.
Process regression methodology is underdeveloped relative to the frequency with which pertinent data arise. In this article, the response-190 is a binary indicator process representing the joint event of being alive and remaining in a specific state. The process is indexed by time (e.g., time since diagnosis) and observed continuously. Data of this sort occur frequently in the study of chronic disease. A general area of application involves a recurrent event with non-negligible duration (e.g., hospitalization and associated length of hospital stay) and subject to a terminating event (e.g., death). We propose a semiparametric multiplicative model for the process version of the probability of being alive and in the (transient) state of interest. Under the proposed methods, the regression parameter is estimated through a procedure that does not require estimating the baseline probability. Unlike the majority of process regression methods, the proposed methods accommodate multiple sources of censoring. In particular, we derive a computationally convenient variant of inverse probability of censoring weighting based on the additive hazards model. We show that the regression parameter estimator is asymptotically normal, and that the baseline probability function estimator converges to a Gaussian process. Simulations demonstrate that our estimators have good finite sample performance. We apply our method to national end-stage liver disease data. The Canadian Journal of Statistics 48: 222–237; 2020 © 2019 Statistical Society of Canada  相似文献   
217.
218.
Sedentary behavior has already been associated with mortality, cardiovascular disease, and cancer. Questionnaires are an affordable tool for measuring sedentary behavior in large epidemiological studies. Here, we introduce and evaluate two statistical methods for quantifying measurement error in questionnaires. Accurate estimates are needed for assessing questionnaire quality. The two methods would be applied to validation studies that measure a sedentary behavior by both questionnaire and accelerometer on multiple days. The first method fits a reduced model by assuming the accelerometer is without error, while the second method fits a more complete model that allows both measures to have error. Because accelerometers tend to be highly accurate, we show that ignoring the accelerometer's measurement error, can result in more accurate estimates of measurement error in some scenarios. In this article, we derive asymptotic approximations for the mean-squared error of the estimated parameters from both methods, evaluate their dependence on study design and behavior characteristics, and offer an R package so investigators can make an informed choice between the two methods. We demonstrate the difference between the two methods in a recent validation study comparing previous day recalls to an accelerometer-based ActivPal.  相似文献   
219.
220.
Three studies explored gender differences in explicit and implicit components of sexual arousal following brief exposure to a sexual stimulus. Whereas Study 1 assessed reports of sexual arousal following subliminal exposure to a sexual or a neutral picture, Studies 2 and 3 examined the effects of the same priming procedure on accessibility of sex-related thoughts assessed with a pictorial judgment task and a lexical decision task. The subliminal sexual prime did not have an effect on men's reports of sexual arousal, but caused women to report lower levels of sexual arousal. In contrast, the same subliminal sexual prime led to higher accessibility of sex-related thoughts in both men and women. It is therefore suggested that the subliminal sexual prime causes women to activate sex-related mental contents but to experience the result as somewhat aversive.  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