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   39416篇
  免费   1529篇
  国内免费   16篇
  2020年   450篇
  2019年   569篇
  2018年   754篇
  2017年   835篇
  2016年   832篇
  2015年   580篇
  2014年   736篇
  2013年   3100篇
  2012年   1317篇
  2011年   1317篇
  2010年   853篇
  2009年   826篇
  2008年   1176篇
  2007年   1198篇
  2006年   1068篇
  2005年   955篇
  2004年   894篇
  2003年   841篇
  2002年   867篇
  2001年   1190篇
  2000年   1137篇
  1999年   897篇
  1998年   414篇
  1997年   407篇
  1996年   370篇
  1995年   379篇
  1993年   368篇
  1992年   760篇
  1991年   661篇
  1990年   721篇
  1989年   626篇
  1988年   664篇
  1987年   617篇
  1986年   626篇
  1985年   571篇
  1984年   539篇
  1983年   492篇
  1982年   368篇
  1980年   370篇
  1979年   592篇
  1978年   443篇
  1977年   383篇
  1975年   492篇
  1974年   525篇
  1973年   560篇
  1972年   413篇
  1971年   405篇
  1969年   415篇
  1968年   483篇
  1967年   446篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
971.
972.
973.
974.
975.
976.
Pigeons trained to peck a key for food were periodically presented with tones ending with electrical shock until tone presentation consistently suppressed ongoing pecks. Shock was then discontinued and gradients of stimulus generalization were assessed by presenting tones with frequencies above, below, and at the frequencies of those used to develop conditioned suppression. When the training tones had frequencies at 670 and 1500 cps, resulting gradients were bi-modal with peak suppression at 670 and 1500 cps. Of the other test tones, 1000 cps produced the most suppression. When the training tones had frequencies at 450 and 2250 cps, bi-modal gradients were again obtained with peak suppression to the 450 and 2250 cps tones. Of the other test tones, 1000 cps produced the least suppression. These results support the hypothesis that generalized response tendencies summate.  相似文献   
977.
978.
Pastoral Psychology -  相似文献   
979.
Five 14(1/2)- to 19(1/2)-month-old infants were trained to lever press for snacks on small fixed ratio schedules of reinforcement. Within four to nine sessions, responding under FR 10 was established for four subjects and FR 15 for the other. Each subject's last session revealed behavioral patterns similar to animal and human FR trained subjects-a high and constant ratio rate, mixed with a zero rate following reinforcements. Deviations were mostly in the form of prolonged and variable post-reinforcement pauses. These and other irregularities were probably due to the limited deprivation conditions and improper training procedures in which the ratio (for two subjects) was ascended too early and too quickly. Extinction was instituted during the last session. The degree to which extinction performance matched that of other organisms depended upon how stable and "ratio-like" performance was during conditioning.  相似文献   
980.
Summary In this paper I have suggested examples of character traits in persons Jesus tells us about, or whom he dealt with, which can serve as suggestive material in determining the prognosis of persons either in or contemplating pastoral counseling. Among these I have given: first, the ability of a person to reach out, still trying to become life-related or to maintain the relations which he has already established; second, the capacity of the person for relationship, his being able to have feeling, interest, or concern for others, or reality beyond himself; and, third, I have indicated the idea of a person's being able to look at himself in an objective sense, not merely needing to live a defensive life, guardedly protecting his ego as though it could not tolerate any kind of a critical approach. In these concepts of self I believe we have the basic questions regarding the person's success or failure in the process of pastoral counseling.  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