全文获取类型
收费全文 | 42180篇 |
免费 | 978篇 |
国内免费 | 15篇 |
专业分类
43173篇 |
出版年
2023年 | 143篇 |
2021年 | 220篇 |
2020年 | 387篇 |
2019年 | 485篇 |
2018年 | 3960篇 |
2017年 | 3342篇 |
2016年 | 2807篇 |
2015年 | 677篇 |
2014年 | 646篇 |
2013年 | 2440篇 |
2012年 | 1545篇 |
2011年 | 3352篇 |
2010年 | 3060篇 |
2009年 | 2117篇 |
2008年 | 2522篇 |
2007年 | 2980篇 |
2006年 | 871篇 |
2005年 | 971篇 |
2004年 | 866篇 |
2003年 | 816篇 |
2002年 | 732篇 |
2001年 | 466篇 |
2000年 | 412篇 |
1999年 | 357篇 |
1998年 | 313篇 |
1997年 | 315篇 |
1996年 | 299篇 |
1995年 | 240篇 |
1994年 | 242篇 |
1993年 | 230篇 |
1992年 | 239篇 |
1991年 | 261篇 |
1990年 | 241篇 |
1989年 | 198篇 |
1988年 | 178篇 |
1987年 | 197篇 |
1986年 | 201篇 |
1985年 | 259篇 |
1984年 | 252篇 |
1983年 | 199篇 |
1982年 | 223篇 |
1981年 | 208篇 |
1980年 | 194篇 |
1979年 | 198篇 |
1978年 | 207篇 |
1977年 | 193篇 |
1976年 | 180篇 |
1975年 | 187篇 |
1974年 | 184篇 |
1973年 | 163篇 |
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
41.
42.
43.
44.
45.
Randy O. Frost Joan E. Morgenthau Catherine K. Riessman Margaret Whalen 《Behaviour research and therapy》1988,26(6):481-487
The study examined physical symptoms and health service utilization of subjects high or low on a measure of the tendency to experience stress somatically and high or low on a measure of current stress. High somatic responders reported greater numbers of symptoms than low somatic responders regardless of stress level. However, high somatic responders who were experiencing high levels of current stress reported significantly more symptoms than high somatic responders who were experiencing low levels of stress. These findings indicate that somatic response to stress reflects both a general tendency to focus on physical symptoms, and a specific tendency to focus more on physical symptoms when under stress. Analysis of health service records indicated that high somatic responders had more visits prompted by symptoms than low somatic responders, but did not differ in frequency of health service visits designed to maintain health. The findings further clarify the relationship between somatic response to stress, physical symptoms and health service use. 相似文献
46.
Traits and states are concepts that people use to both describe and understand themselves and others. We show that people view these concepts as prototype-based categories that have a graded internal structure and fuzzy boundaries and identify a set of attributes that define the prototypical cores of two categories: traits and states. Prototypical traits are stable, long-lasting, and internally caused. Prototypical states are temporary, brief, and caused by external circumstances. These prototypes are not defined by averages, as the family-resemblance principle would suggest, but by ideal (or extreme) attribute values. Like other ideal-based categories, traits and states serve particular goals. Trait concepts permit people to predict the present from the past; state concepts identify those behaviors that can be controlled by manipulating the situation. These two complementary schemas are part of the extensive theory of psychological causality that is implicit in language. Abstract social concepts differ from object categories in their category standards, the nature of their attributes, and the interrelations among those attributes. 相似文献
47.
John W. Schuster David L. Gast Mark Wolery Sharon Guiltinan 《Journal of applied behavior analysis》1988,21(2):169-178
The effectiveness of a 5-s constant time-delay procedure to teach three chained food preparation behaviors to four moderately retarded adolescent students was evaluated within a multiple probe design across behaviors. Results indicate that the procedure was effective in teaching all four students to make a sandwich, boil a boil-in-bag item, and bake canned biscuits. The skills maintained with at least 85% accuracy over a 3-month period. Training generalized from the school to the home setting for the 2 subjects that completed generalization probe sessions. The percentage of errors across all skills and students was less than 9%. 相似文献
48.
49.
David Wilson Alastair Mundy-Castle Ruth Greenspan 《International journal of psychology》1988,23(1-6):637-646
Six-hundred and thirteen girls and 601 boys in Zimbabwe completed the Junior Eysenck Personality Questionnaire (JEPQ). The reliability of the Neuroticism (N) and Social Desirability (L) factors was acceptable but the Psychoticism (P) and Extraversion (E) factors possessed modest reliability. While the factorial validity of the P, N and L scales was acceptable, the factorial validity of the E scale was poor. L scores were significantly correlated with N and P scores among girls and boys. Whereas Zimbabwean girls reported higher P scores than did Canadian girls, Zimbabwean boys reported lower P scores than did Canadian boys. Zimbabwean girls and boys reported lower E and N and higher P scores than their Canadian counterparts. This study provides broad support for Eysenck's basic personality model, but it does not support the use of this version of the JEPQ, and especially the E scale, among Zimbabwean children. 相似文献
50.