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   170381篇
  免费   7628篇
  国内免费   157篇
  178166篇
  2020年   2770篇
  2019年   3426篇
  2018年   3417篇
  2017年   3871篇
  2016年   4561篇
  2015年   3914篇
  2014年   4783篇
  2013年   23393篇
  2012年   4365篇
  2011年   3384篇
  2010年   3767篇
  2009年   4716篇
  2008年   3648篇
  2007年   3152篇
  2006年   3806篇
  2005年   3839篇
  2004年   3360篇
  2003年   3002篇
  2002年   2793篇
  2001年   3061篇
  2000年   2900篇
  1999年   2954篇
  1998年   2796篇
  1997年   2639篇
  1996年   2562篇
  1995年   2388篇
  1994年   2356篇
  1993年   2313篇
  1992年   2500篇
  1991年   2356篇
  1990年   2196篇
  1989年   2151篇
  1988年   2094篇
  1987年   2156篇
  1986年   2147篇
  1985年   2379篇
  1984年   2489篇
  1983年   2260篇
  1982年   2354篇
  1981年   2331篇
  1980年   2156篇
  1979年   2177篇
  1978年   2143篇
  1977年   2142篇
  1976年   1917篇
  1975年   2008篇
  1974年   2050篇
  1973年   1955篇
  1972年   1548篇
  1971年   1511篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
This field study used the Job Feedback Survey (Herold & Parsons, 1985) and performance data gathered from multiple sources to examine the relationship between the perceived organizational feedback environment and performance. Regression analyses indicated that, while holding the other feedback variables constant, feedback from supervisory and organizational sources was related to reported job performance while feedback from peers and self was not. Most of the unique variance in performance explained by feedback was also accounted for by feedback from organizational and supervisory sources. Negative expressions from organizational/supervisory sources (e.g., the supervisor expressing anger, the company communicating dissatisfaction with poor performance) were related to lower performance, and positive job changes initiated by these sources (e.g., increasing responsibility, assignment to special jobs) were related to higher performance. Higher performers did not receive more feedback than lower performers but did receive more total positive feedback. Supplemental issues, possible explanations, and implications of the findings are discussed.  相似文献   
992.
Literature since the last comprehensive review of research on the employment interview is summarized, and suggestions for future studies in this area are described. Major changes in findings regarding the validity of the interview, the impact of applicant sex, and the effect of interviewer characteristics/behavior on applicant reactions, as well as other issues, are reported. Contrary to the widely held belief that the interview has low validity, recent research indicates at least modest validity for this selection tool. Conversely, the effect of the campus interview on applicant reactions has been seriously questioned. Researchers are urged to examine several areas in social psychology, including the literature on attitudes-intentions-behavior, the elaboration likelihood model, and theories of discrimination to achieve greater understanding of the employment interview.  相似文献   
993.
The responses toward denatonium saccharide and quinine by three rodent species differ from those exhibited by humans. This study measured the relative aversiveness of these two compounds in grasshopper mice (Onychomys leucogaster) to determine if this species responded similarly to or differently from these other rodents. In a choice test, the mice clearly preferred quinine over denatonium saccharide at concentrations of 1/10,000 and 1/50,000, but only marginally preferred quinine at a concentration of 1/1000. When denatonium or quinine was paired with toxicosis, both suppressed drinking at concentrations from 1/10,000 to 1/50,000, but only denatonium suppressed drinking at 1/100,000. Neither compound suppressed drinking at 1 part in million. Grasshopper mice perceived denatonium saccharide as more aversive than quinine in both experiments. Such a response resembled the behavior of humans more than that of the other three rodents previously tested.  相似文献   
994.
The Psychological Record - Treatment with 8.0 mg/kg fluprazine hydrochloride had no effect on the acquisition of a step-down avoidance response but retarded its extinction. The drug also impaired...  相似文献   
995.
50 patients suffering from terminal mammary cancer and visceral metastases received chemotherapy, and in addition half of them received psychotherapy, while half did not. A lymphocyte count was undertaken seven times in all, once before initiation of chemotherapy, the others after six applications of the therapy. As hypothesized, the 25 women who received psychotherapy lived longer and had significantly higher lymphocyte counts on Occasions 5, 6 and 7 than did the 25 women who did not receive psychotherapy. Of the types of psychotherapy employed, a specially designed form of behaviour therapy was significantly more helpful than dynamic psychotherapy in prolonging life.  相似文献   
996.
997.
154 autopsy cases of alcoholics (120 men and 34 women) were investigated from a neuropathological viewpoint. In only 19 cases could typical diseases of the nervous system caused by alcoholism be found (Wernicke's encephalopathy, central pontine myelinolysis, Marchiafava-Bignami's disease and disorders of the peripheral nerves and muscles). In comparison liver diseases occurred almost five times more frequently in our own material. Diseases caused by alcoholism of the nervous system, the question of brain shrinkage and its partial reversibility, the up to now not completely known effects on the neurophil and cortical cytoarchitectonic are discussed according to the literature.  相似文献   
998.
Clinical judgment, clinical training, and professional experience   总被引:1,自引:0,他引:1  
Reviews studies on training, experience, and clinical judgment. The results on the validity of judgments generally fail to support the value of on-the-job experience in mental health fields. The validity results do provide limited support for the value of training. Other results suggest that experienced clinicians are better than less experienced judges at knowing which of their judgments are likely to be correct and which are likely to be wrong. Reasons why clinicians have trouble learning from experience are given. Recommendations are made for improving training and clinical practice.  相似文献   
999.
The Psychological Record - The present experiments investigated blocking effects in rhesus monkeys (Macaca mulatta) in a discrimination learning paradigm using a single stimulus modality. Two...  相似文献   
1000.
Reviews     
  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