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   223篇
  免费   8篇
  231篇
  2023年   3篇
  2021年   5篇
  2020年   4篇
  2018年   7篇
  2017年   5篇
  2016年   5篇
  2015年   5篇
  2014年   10篇
  2013年   17篇
  2012年   13篇
  2011年   13篇
  2010年   9篇
  2009年   7篇
  2008年   7篇
  2007年   6篇
  2006年   7篇
  2005年   3篇
  2004年   18篇
  2003年   8篇
  2002年   5篇
  2001年   5篇
  2000年   2篇
  1999年   3篇
  1998年   2篇
  1997年   3篇
  1996年   4篇
  1994年   2篇
  1992年   5篇
  1991年   3篇
  1990年   3篇
  1989年   2篇
  1988年   3篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1982年   3篇
  1981年   3篇
  1980年   4篇
  1979年   1篇
  1977年   1篇
  1974年   2篇
  1973年   3篇
  1972年   1篇
  1970年   1篇
  1969年   3篇
  1967年   3篇
  1966年   1篇
  1961年   1篇
  1959年   1篇
排序方式: 共有231条查询结果,搜索用时 0 毫秒
81.
Persuading teen smokers to volunteer for smoking-cessation programs is a challenging yet understudied problem. As a method of dealing with this problem, we used and tested a foot-in-the-door (FITD) approach. Teen smokers were intercepted at malls and were assigned randomly to request compliance with a small behavior request of either (a) answering a few questions (light FITD) or (b) answering the same questions and a few additional ones, plus watching a short video about the effects of nicotine (heavy FITD). Participants were then called back by telephone several weeks later and asked to comply with a large behavior request of joining a cessation program that involved the use of self-help materials and telephone counseling. Although no differences were found in responses from the light and heavy groups, consent to enter the program was obtained from 12% of the pooled qualified intercepts and their parents (for those under 18 years). This recruitment rate was considered good, given that this is one of the only reported studies that recruited teen smokers from the general population to cessation programs.  相似文献   
82.
Research demonstrates that the well-being of migrants is a multilevel, dynamic, and value dependent phenomenon. It is multilevel because risk and protective factors are present at various ecological planes, from the individual to the social sphere. It is dynamic because objective and subjective risk and protective factors interact across ecological levels, creating favorable or unfavorable conditions for migrants to adjust to the new surroundings. Finally, it is value dependent because access to resources is conditioned by norms of justice prevalent in the host society. Findings from this special section on acculturation are combined with previous literature to support the three claims advanced in this article.  相似文献   
83.
Howard Stein     
Isaac Levi 《Synthese》2004,140(1-2):177-180
  相似文献   
84.
85.
86.
This essay has two objectives: (1) To offer a general motivation for the use of sets of probabilities to represent states of credal probability judgment. Doubt as to which of rival answers to a given question is true is representable by the set of potential answers that have not ruled out as impossible. Doubt concerning probability is representable by the set of probability distributions over potential answers that are not ruled out as impermissible to use in delibration. (2) To defend a more specific thesis that the set of permissible probability distributions ought to be convex.  相似文献   
87.
André Fuhrmann  Isaac Levi 《Synthese》1994,101(2):157-169
There is an important class of conditionals whose assertibility conditions are not given by the Ramsey test but by an inductive extension of that test. Such inductive Ramsey conditionals fail to satisfy some of the core properties of plain conditionals. Associated principles of nonmonotonic inference should not be assumed to hold generally if interpretations in terms of induction or appeals to total evidence are not to be ruled out.  相似文献   
88.
89.
90.
This study investigated (a) the ability to minimize or eliminate stereotype threat by reducing the difficulty of items administered via a computer‐adaptive version of the Graduate Record Examinations General Test; and (b) the generalizability of these findings for Black students as well as women, and for verbal as well as quantitative sections of the test. Standard and easier versions of the test, and measures of stereotype threat and possible symptoms or sequelae of stereotype threat were administered to students bound for graduate school or already there. Reducing test difficulty did not have any differential effects on test performance or on explicit indexes of stereotype threat for White and Black students, and for men and women, that were statistically and practically significant. However, such effects did occur for some symptoms or sequelae, mainly for White students and women.  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