全文获取类型
收费全文 | 2488篇 |
免费 | 22篇 |
专业分类
2510篇 |
出版年
2023年 | 42篇 |
2022年 | 11篇 |
2021年 | 16篇 |
2020年 | 97篇 |
2019年 | 32篇 |
2018年 | 41篇 |
2017年 | 104篇 |
2016年 | 108篇 |
2015年 | 86篇 |
2014年 | 105篇 |
2013年 | 388篇 |
2012年 | 97篇 |
2011年 | 64篇 |
2010年 | 69篇 |
2009年 | 107篇 |
2008年 | 79篇 |
2007年 | 62篇 |
2006年 | 60篇 |
2005年 | 41篇 |
2004年 | 40篇 |
2003年 | 40篇 |
2002年 | 41篇 |
2001年 | 18篇 |
2000年 | 26篇 |
1999年 | 20篇 |
1998年 | 32篇 |
1997年 | 23篇 |
1996年 | 53篇 |
1995年 | 43篇 |
1994年 | 33篇 |
1993年 | 34篇 |
1992年 | 42篇 |
1991年 | 44篇 |
1990年 | 43篇 |
1989年 | 26篇 |
1988年 | 28篇 |
1987年 | 28篇 |
1986年 | 18篇 |
1985年 | 13篇 |
1984年 | 18篇 |
1983年 | 15篇 |
1982年 | 12篇 |
1981年 | 16篇 |
1980年 | 18篇 |
1979年 | 21篇 |
1978年 | 26篇 |
1977年 | 27篇 |
1976年 | 11篇 |
1975年 | 11篇 |
1974年 | 11篇 |
排序方式: 共有2510条查询结果,搜索用时 0 毫秒
41.
Mary M. Mitchell PhD Michael Shayne Gallaway PhD MA Amy M. Millikan MD MPH Michael Bell MD MPH 《Suicide & life-threatening behavior》2012,42(5):486-494
Suicide is one of the leading causes of death among U.S. Army soldiers. Suicide‐related ideation, which is associated with suicide attempts and suicide, can cause considerable distress. In a sample of 1,663 recently redeployed soldiers, we used factor analysis and structural equation modeling to test the associations between combat exposure, unit cohesion, and their interaction in predicting suicide‐related ideation. We found that combat exposure was a significant risk factor for suicide‐related ideation, while unit cohesion was a significant protective factor. The significant interaction between the two factors indicated that soldiers who experienced greater combat exposure but also had higher levels of unit cohesion had relatively lower levels of suicide‐related ideation. In addition, those who had higher levels of combat exposure and lower unit cohesion were most at risk for suicide‐related ideation. Our findings indicate the importance of unit cohesion in protecting soldiers from suicide‐related ideation and suggest a higher risk group of soldiers who should be targeted for interventions. 相似文献
42.
Fleischmann ST 《Science and engineering ethics》2006,12(2):381-389
An honor code is certainly a good place to start teaching engineering students about ethics, but teaching students to live
honorably requires far more effort than memorizing a code of ethics statement or applying it just to academic performance.
In the School of Engineering at Grand Valley State University, we have followed the model provided by the United States Military
Academy at West Point. For our students this involves an introduction to the Honor Code as part of a larger Honor Concept
at the very beginning of their studies and then making it an integral part of their preparation as engineers. The challenge
is significant because the culture at large does not support living with an Honor Concept. This paper will begin with a discussion
of the cultural context in which we must teach, because that context has changed significantly in the years since many faculty
members were students themselves. The rest of the paper will detail the approach that we have taken to teach ethics as an
engineer’s way of life.
“The shortest and surest way to live with honor in the world is to be in reality what we would appear to be. All human virtues
increase and strengthen themselves by the practice and experience of them.”
Plato
An earlier version of this paper was presented at the 2005 conference, Ethics and Social Responsibility in Engineering and Technology, Linking Workplace Ethics and Education, co-hosted by Gonzaga University and Loyola Marymount University, Los Angeles, CA, USA, 9–10 June 2005. 相似文献
43.
44.
William R. McMordie PhD 《Journal of Contemporary Psychotherapy》1981,12(2):137-145
The paper presents a conceptual model for therapeutic intervention based on a behavioral orientation. Behavioral therapy is viewed on a continuum ranging from basic operant techniques to cognitive strategies applied to human interaction. It is hypothesized that the elements of reality therapy, with its emphasis on human interaction, are needed to provide closure to the therapeutic intervention and to help maintain new coping behaviors. Utilizing the context of an institutionalized client, suggestions for how this process might occur are discussed. 相似文献
45.
46.
Wendy R. Boswell Marla Baskerville Watkins María del Carmen Triana Asghar Zardkoohi Run Ren Elizabeth E. Umphress 《Journal of Vocational Behavior》2012,80(2):454-463
Outsourcing of jobs to contract workers who work alongside a client's employees has changed the human resource landscape of many organizations. In this study we examine how a contract worker's perceived employment status similarity to the client's own standard employees influences his/her affective commitment to both the client and the employer and ultimately intent to quit the employer. Using a sample of 623 contract workers, we found strong support for our hypotheses. In particular, findings indicate an important role for perceived employment status at the client organization in driving contract worker's attitudes and that contract workers consider both the client and the employer when making decisions to leave the employer. Implications for managing contractor relationships are discussed. 相似文献
47.
48.
49.
Clements and Perner (Cognitive Development, 9 (1994), 377–397) reported that children show understanding of a story character’s belief in their anticipatory looking responses before they show this in their answers to test questions. According to Clements and Perner the anticipatory looking responses provide evidence of implicit understanding of belief. This paper examines the possibility that the anticipatory looking measure is indicative of (a) children using a seeing = knowing rule, i.e. children linking not seeing with ignorance rather than a sensitivity to belief, or (b) a tendency to associate the protagonist with the left‐hand container. Thirty‐two children aged between 2 years 11 months and 4 years were told a false belief story similar to that used in Clements and Perner (1994) except that three containers were used instead of two. The protagonist first looks inside the middle box but then puts the object in the left‐hand box. In his absence, a second character moves the object unexpectedly to the right‐hand box. If children’s anticipatory looking was based on sensitivity to belief then they should have looked clearly to the left‐hand box. If it was based on an association bias or sensitivity to the character not knowing then they should have looked equally to the left‐hand and middle boxes. The results were consistent with the former prediction suggesting that children’s anticipatory looking responses may indeed be governed by an implicit sensitivity to belief. 相似文献
50.
Academic buoyancy refers to a positive, constructive, and adaptive response to the types of challenges and setbacks experienced in a typical and everyday academic setting. In this project we examined whether academic buoyancy explained any additional variance in test anxiety over and above that explained by coping. Two hundred and ninety-eight students in their final two years of compulsory schooling completed self-report measures of academic buoyancy, coping, and test anxiety. Results suggested that buoyancy was inversely related to test anxiety and unrelated to coping. With the exception of test-irrelevant thoughts, test anxiety was positively related to avoidance coping and social support. Test-irrelevant thoughts were inversely related to task focus, unrelated to social support, and positively related to avoidance. A hierarchical regression analysis showed that academic buoyancy explained a significant additional proportion of variance in test anxiety when the variance for coping had already been accounted for. These findings suggest that academic buoyancy can be considered as a distinct construct from that of adaptive coping. 相似文献