全文获取类型
收费全文 | 1288篇 |
免费 | 385篇 |
国内免费 | 95篇 |
专业分类
1768篇 |
出版年
2025年 | 2篇 |
2024年 | 23篇 |
2023年 | 28篇 |
2022年 | 47篇 |
2021年 | 39篇 |
2020年 | 69篇 |
2019年 | 46篇 |
2018年 | 53篇 |
2017年 | 57篇 |
2016年 | 51篇 |
2015年 | 38篇 |
2014年 | 57篇 |
2013年 | 99篇 |
2012年 | 78篇 |
2011年 | 113篇 |
2010年 | 76篇 |
2009年 | 98篇 |
2008年 | 92篇 |
2007年 | 146篇 |
2006年 | 122篇 |
2005年 | 109篇 |
2004年 | 51篇 |
2003年 | 29篇 |
2002年 | 24篇 |
2001年 | 22篇 |
2000年 | 25篇 |
1999年 | 24篇 |
1998年 | 15篇 |
1997年 | 13篇 |
1996年 | 4篇 |
1995年 | 9篇 |
1994年 | 13篇 |
1993年 | 11篇 |
1992年 | 10篇 |
1991年 | 10篇 |
1990年 | 6篇 |
1989年 | 10篇 |
1988年 | 8篇 |
1987年 | 4篇 |
1986年 | 4篇 |
1985年 | 7篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 3篇 |
1981年 | 7篇 |
1980年 | 3篇 |
1979年 | 5篇 |
1960年 | 1篇 |
排序方式: 共有1768条查询结果,搜索用时 15 毫秒
171.
172.
The catastrophic Wenchuan earthquake measuring 8.0 on the Richter scale occurred on May 12, 2008 in the West of the Sichuan basin in China and caused severe damage. A project was undertaken to examine the cognitive and psychological effects one year after the disaster among 2080 individuals in the local area. We evaluated the influence of gender, age, education level, and ethnic group on five aspects: work satisfaction, living satisfaction, health self-perception, psychological pressure, and psychological recovery. Male subjects had a better performance in all five aspects, which indicated that women were more affected. Subjects of different ethnic groups showed significantly different attitudes with respect to psychological pressure and psychological recovery. Significant differences for all the five aspects were also found in education level and age. The results showed that older people and those with a lower education level probably had more psychological problems. There were significant correlations between work satisfaction and living satisfaction, living satisfaction and health self-perception, living satisfaction and psychological recovery, and psychological pressure and psychosocial recovery. Living satisfaction and education level were significant predictors of psychological pressure. For psychological recovery, significant predictors were living satisfaction, age, work satisfaction, education level, and gender. The study findings indicated that government programs should provide more support for females, older people, those with a lower education level, and those in lower living conditions. Attention should be given not only to the psychological effects on each victim, but also to related issues such as work and living conditions to promote psychological wellbeing. Limitations of this study are addressed. 相似文献
173.
174.
道安作为中土早期佛教的一代宗师,于佛教戒定慧三学均有卓越之发明,思想宏富深厚.文章分疏、论析了道安有关戒定慧三学的理趣要旨,阐释了其由早期禅观向般若学转变的理论进路及其弥勒净土信仰之衷曲,力图突显其佛学思想及信仰之于早期中土佛理建设的胜义. 相似文献
175.
抑郁倾向的绘画诊断研究 总被引:1,自引:0,他引:1
通过问卷、绘画测验和回归分析,8项绘画特征被验证能够有效反映神经症抑郁倾向.根据这些绘画特征建立的回归方程经检验具有中等的解释效果.同时,评分者一致性程度较高.研究结果表明,通过\"房子树人绘画测验\",能够建立对神经症抑郁倾向进行有效测量的临床诊断工具. 相似文献
176.
Shi Xu Larry R. Martinez Hubert Van Hoof Maria Isabel Eljuri Liliana Arciniegas 《Journal of applied social psychology》2016,46(11):617-626
This study focuses on the relation between emotional variability and job satisfaction and examines emotional exhaustion as a potential explanation for why variability may result in lower satisfaction. In addition, this study examines organizational identification as a potential moderator of the relation between emotional exhaustion and job satisfaction. A total of 244 nonacademic staff in two universities in Ecuador responded to the surveys. The results demonstrated that emotional exhaustion mediated the relation between emotional variability and job satisfaction and that organizational identification weakened the negative relation between emotional exhaustion and job satisfaction. This research is among the first to investigate emotional variability in organizations and examine the role of organizational identification in buffering the negative effect of emotional variability. 相似文献
177.
质性研究中编码者信度的多种方法考察 总被引:1,自引:0,他引:1
质性研究中检验编码者信度的方法有归类一致性指数、编码信度系数、相关系数、中位数检验、概化系数等。基于教师胜任力访谈数据集,对编码者信度考察结果表明,归类一致性指数和编码信度系数受相同编码数影响而不稳定,相关系数受数据类型制约,中位数检验受研究设计影响,概化系数则受编码者和编码项目的数量影响。研究中须合理选用。 相似文献
178.
Restriction of means for suicide is an important part of suicide preventive strategies in different countries. The effect on method-specific suicide rate and overall suicide rate of restrictions on availability of carbon monoxide, barbiturates, and dextropropoxyphene was examined. From 1970 to 2000, overall suicide mortality and method-specific suicide mortality in Denmark were compared with official information about availability of barbiturates and analgesics and carbon monoxide in vehicle exhaust and household gas. Restrictions on availability of household gas with carbon monoxide content and barbiturates was associated with a decline in the number of suicides and suicides by self-poisoning with these compounds after controlling for the effect of calender year. Restricted access occurred concomittantly with a 55 percent decrease in suicide rate. 相似文献
179.
In this study we present a self-organizing connectionist model of early lexical development. We call this model DevLex-II, based on the earlier DevLex model. DevLex-II can simulate a variety of empirical patterns in children's acquisition of words. These include a clear vocabulary spurt, effects of word frequency and length on age of acquisition, and individual differences as a function of phonological short-term memory and associative capacity. Further results from lesioned models indicate developmental plasticity in the network's recovery from damage, in a non-monotonic fashion. We attribute the network's abilities in accounting for lexical development to interactive dynamics in the learning process. In particular, variations displayed by the model in the rate and size of early vocabulary development are modulated by (a) input characteristics, such as word frequency and word length, (b) consolidation of lexical-semantic representation, meaning-form association, and phonological short-term memory, and (c) delayed processes due to interactions among timing, severity, and recoverability of lesion. Together, DevLex and DevLex-II provide an accurate computational account of early lexical development. 相似文献
180.
It is interesting to investigate the formation of He bubbles in amorphous alloys because point defects do not exist in amorphous materials. In the present study, the microstructural evolution of amorphous Fe79B16Si5 alloy, either irradiated with 5?keV He+ ions or implanted with 150?eV He+ ions without causing displacement damage, and then annealed at a high temperature, was investigated using transmission electron microscopy (TEM). Vacancy-type defects were formed in the amorphous alloy after irradiation with 5?keV He+ ions, and He bubbles formed during annealing the irradiated samples at high temperature. On the other hand, for samples implanted with 150?eV He+ ions, although He atoms are also trapped in the free volume, no He bubbles were observed during annealing the samples even up to 873?K. In conclusion, the formation of He bubbles is related to the formation and migration of vacancy-type defects even in amorphous alloys. 相似文献