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   323篇
  免费   12篇
  2020年   6篇
  2018年   6篇
  2017年   4篇
  2016年   3篇
  2015年   4篇
  2014年   8篇
  2013年   35篇
  2012年   8篇
  2011年   18篇
  2010年   7篇
  2009年   5篇
  2008年   6篇
  2007年   10篇
  2006年   12篇
  2005年   6篇
  2004年   9篇
  2003年   11篇
  2002年   15篇
  2001年   6篇
  2000年   6篇
  1999年   3篇
  1998年   5篇
  1997年   3篇
  1996年   4篇
  1995年   5篇
  1994年   4篇
  1993年   3篇
  1991年   6篇
  1990年   5篇
  1989年   3篇
  1988年   5篇
  1987年   7篇
  1986年   4篇
  1985年   7篇
  1984年   4篇
  1981年   5篇
  1980年   5篇
  1979年   3篇
  1978年   9篇
  1977年   6篇
  1976年   3篇
  1974年   10篇
  1973年   3篇
  1972年   4篇
  1971年   3篇
  1970年   5篇
  1967年   3篇
  1966年   5篇
  1963年   2篇
  1957年   3篇
排序方式: 共有335条查询结果,搜索用时 15 毫秒
121.
122.
Appraisals of occupational health risks and coping alternatives were examined in a study of 670 steelworkers. Three forms of coping were considered: emotion focused, problem focused, and system oriented. Path analysis was used to test a model of coping as a function of primary appraisals of occupational exposures, secondary appraisals of coping options, reappraisal of health concerns, and background characteristics. Results show that each element in the proposed model contributes significantly to all three coping types. In addition, distinctive patterns of secondary appraisal were observed for each type of coping. Future use of the concept of system-oriented coping is suggested for investigating problems not easily solved by individual action.  相似文献   
123.
On each of five days the subject of this experiment read aloud different material during an 18-min A1 (base rate), B (experimental), and A2 (extinction) period. No stimulation was delivered during the first three days. On the fourth day, the nonsense word “norg” was presented noncontingently during the experimental period. There was no statistically significant difference between the A1 and B periods on any of these four days. On day five, “wrong” was made contingent on Factor I prolongations during the experimental period. As a result, there was a statistically significant increase in their frequency. When the response consequence was removed in the A2 priod, there was a reliable reduction in prolongations and the frequency closely approximated that found in the A1 period. These data suggest that response-contingent negative stimulation is contraindicated as a clinical tactic for use with Factor I prolongations. It not only failed to suppress them, it increased their frequency.  相似文献   
124.
An identical-subject-repeated-measures design, involving two counterbalanced conditions, was employed to investigate adaptation when the presentation of a 100-word list is distributed and when it is massed. In Condition I, the entire list was read aloud during each of five successive trials. Since a specific word reoccurred only after all of the others were displayed, the presentation may be said to be distributed. In contrast, the Condition II presentation was massed. Only after a word was read five times was the next one presented. The results indicate that significant adaptation occurred in both conditions. However, adaptation plateaued in the distributed condition. This was not the case when massing was employed. The among-condition analyses revealed that significantly more adaptation occurred in the massed than in the distributed condition.  相似文献   
125.
In the development of biotechnology in the United States, many questions were raised about the appropriateness of applying to this area a traditional robust system of intellectual property rights. Despite these hesitations, the U.S. rejected suggested modifications. This was a mistake, and there is a need to develop a modified system that promotes more of the relevant ethical values.  相似文献   
126.
This study compared two self-report methods for assessing binge eating in severely obese bariatric surgery candidates. Participants were 249 gastric bypass candidates who completed the Questionnaire on Eating and Weight Patterns-Revised (QEWP-R) and the Eating Disorder Examination-Questionnaire (EDE-Q) prior to surgery. Participants were classified by binge eating status (i.e., no or recurrent binge eating) with each of the measures. The degree of agreement was examined, as well as the relationship between binge eating and measures of convergent validity. The two measures identified a similar number of patients with recurrent binge eating (i.e., at least 1 binge/week); however, overlap was modest (kappa=.26). Agreement on twice weekly binge eating was poor (kappa=.05). The QEWP-R and EDE-Q both identified clinically meaningful groups of binge eaters. The EDE-Q appeared to differentiate between non/infrequent bingers and recurrent bingers better than the QEWP-R, based on measures of convergent validity. In addition, the EDE-Q demonstrated an advantage because it identified binge eaters with elevated weight and shape overconcern. Using the self-report measures concurrently did not improve identification of binge eating in this study. More work is needed to determine the construct validity and clinical utility of these measures with gastric bypass patients.  相似文献   
127.
The data of recent research studies have shown that by 3 years of age children show an awareness of dysfluency and that by at least the age of six, youngsters who stutter have a speech-associated attitude that is more negative than that of their peers. These findings led to the present study in which the KiddyCAT, a self-report measure, was used to compare the attitude toward speech of 45 children, between the age of three and six, who stuttered with that of 63 who did not. The data of this investigation showed that, as a group, the preschool and kindergarten children who stuttered had significantly more in the way of a negative attitude toward their speech than was found among their nonstuttering peers of the same age and gender. This finding is not consistent with the classically held position that the reactive aspects of stuttering do not generally develop until well after its onset. It suggests the need to measure, by standardized means, the speech-associated attitude of incipient stutterers and, when appropriate, to make the assessment and treatment of negative attitude toward speech a meaningful aspect of therapy.

Educational objectives: The reader will be able to: (1) describe the difference in the speech-associated attitude of preschoolers and kindergartners who do and do not stutter; (2) summarize what we currently know about self-report tests used to assess speech-related attitude among children as young as 3; and (3) evaluate the usefulness of assessing the belief system of children whose fluency is considered problematic.  相似文献   

128.
129.
Knight has shown how the moral growth of medical students involves a spiritual journey. He may, however, present too sanguine a portrayal of the extent to which the medical education environment promotes this moral and spiritual growth. Medical school may indeed be more abusive than supportive. Admitting more women to medical school and teaching more humanities courses, while worthwhile, will not necessarily promote the goals that Knight appropriately advocates.  相似文献   
130.
If patients notoriously violate treatment regimens known to effectively control hypertension, then there must be some subjective costs associated with adherence to these regimens. Generally speaking, there must be some reduction in quality of life associated with antihypertensive medication. Unfortunately the concept of quality of life, due to its lack of specificity, is of little help in further investigating the nature of these subjective costs. We developed a simple neuropsychophysiological model based on fundamental psychological and physiological processes: corticoinhibitory effects of phasic blood pressure elevation reduce the aversive or painful qualities of many stressors. This negative reinforcement increases the rate of the reinforced physiological behavior, i.e., phasic analgesic blood pressure increases. Such negatively reinforced operant behavior is known to be extremely resistant to extinction. Counter actions such as taking antihypertensive medication not only lead to reduced quality of life due to their cancellation of the analgesic effect of conditioned blood pressure increase, but also lead to some form of reluctance to comply with treatment. The model not only provides an innovative etiological path to the emergence of neurogenic essential hypertension, but also yields a highly specific and lean concept of quality of life. Furthermore, it supplies the health care community with a concise explanation for the well-known low compliance of patients with their antihypertensive regimens. In addition to its parsimony, the model fits well with various experimental findings and has been operationalized and tested empirically. Specific therapeutic implications can be derived.  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