全文获取类型
收费全文 | 1882篇 |
免费 | 104篇 |
国内免费 | 1篇 |
专业分类
1987篇 |
出版年
2024年 | 7篇 |
2023年 | 27篇 |
2022年 | 16篇 |
2021年 | 37篇 |
2020年 | 61篇 |
2019年 | 64篇 |
2018年 | 83篇 |
2017年 | 72篇 |
2016年 | 98篇 |
2015年 | 62篇 |
2014年 | 71篇 |
2013年 | 216篇 |
2012年 | 119篇 |
2011年 | 117篇 |
2010年 | 73篇 |
2009年 | 63篇 |
2008年 | 81篇 |
2007年 | 90篇 |
2006年 | 67篇 |
2005年 | 71篇 |
2004年 | 63篇 |
2003年 | 60篇 |
2002年 | 55篇 |
2001年 | 42篇 |
2000年 | 33篇 |
1999年 | 38篇 |
1998年 | 25篇 |
1997年 | 20篇 |
1996年 | 11篇 |
1995年 | 10篇 |
1994年 | 12篇 |
1993年 | 13篇 |
1992年 | 15篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 5篇 |
1988年 | 3篇 |
1987年 | 7篇 |
1986年 | 12篇 |
1984年 | 7篇 |
1983年 | 7篇 |
1982年 | 3篇 |
1981年 | 4篇 |
1980年 | 7篇 |
1979年 | 4篇 |
1977年 | 3篇 |
1976年 | 4篇 |
1975年 | 3篇 |
1974年 | 2篇 |
1970年 | 2篇 |
排序方式: 共有1987条查询结果,搜索用时 15 毫秒
871.
Christina L. Kim Tamara L. Anderson M. Elizabeth Lewis Hall Michele M. Willingham 《Mental health, religion & culture》2013,16(5):453-465
This study is a phenomenological exploration of discrimination experiences among 11 Asian/Asian-American female faculty at various Christian universities, with a specific focus on the characteristics of the Christian academic environment which contribute to those experiences. Participants completed a 90-minute semi-structured interview. Ten of the 11 women described experiences where they perceived being treated differently due to race and/or gender. Qualitative analyses of interview data resulted in the emergence of three themes related to the discrimination context (lack of diversity, naiveté and denial and “missionary mentality”). Resulting themes are discussed in light of existing research. Future research implications include the continued need for research on factors that contribute to discrimination in religious contexts. 相似文献
872.
ABSTRACTFacebook use has become habitual to social network site (SNS) users, yet little is known about the psychological processes at play while using this platform. This study explored how psychophysiological responses vary as a function of liking, commenting, sharing, or posting status updates interactions on Facebook’s newsfeeds. Participants were instructed to enact common Facebook activities or viral behaviors (like, share, comment, and update a status) in brief segments, while their psychophysiological responses were recorded. Our results showcase different approaches to dealing with psychophysiological responses for undefined, uncontrolled (organic) stimuli. We contrasted Facebook organic use segments that ended with pressing on the like button to those that did not end with liking the Facebook post. In the second method of data analysis, we analyzed psychophysiological data at the participant level using the 10 sec preceding the enactment of the 4 viral behaviors. Our findings showed that, indeed, the pathways leading up to performing online behaviors are diverse, thus indicating different underlying psychological processes. Findings’ theoretical and practical implications are discussed within the broader context of understanding social media behaviors. 相似文献
873.
Sarah Kulkofsky Qi Wang Jessie Bee Kim Koh 《Journal of cognition and development》2013,14(1-2):92-114
This study examined maternal beliefs about the functions of memory sharing and the relations between these beliefs and mother-child reminiscing behaviors in a cross-cultural context. Sixty-three European American and 47 Chinese mothers completed an open-ended questionnaire concerning their beliefs about the functions of parent-child memory sharing. They also engaged in a joint-reminiscing task with their child. European American mothers were more likely than Chinese mothers to report social (conversational and relationship maintenance) and teaching/problem solving functions. In addition, conversational functions were associated with increased maternal elaborativeness and evaluations during reminiscing, independent of culture. Results are discussed in light of the functional and cultural contexts of early autobiographical memory development. 相似文献
874.
Alexandra Stubblefield Lauryn A. Jacobs Yongju Kim Paula Goolkasian 《Attention, perception & psychophysics》2013,75(8):1827-1839
To investigate the effect of semantic congruity on audiovisual target responses, participants detected a semantic concept that was embedded in a series of rapidly presented stimuli. The target concept appeared as a picture, an environmental sound, or both; and in bimodal trials, the audiovisual events were either consistent or inconsistent in their representation of a semantic concept. The results showed faster detection latencies to bimodal than to unimodal targets and a higher rate of missed targets when visual distractors were presented together with auditory targets, in comparison to auditory targets presented alone. The findings of Experiment 2 showed a cross-modal asymmetry, such that visual distractors were found to interfere with the accuracy of auditory target detection, but auditory distractors had no effect on either the speed or the accuracy of visual target detection. The biased-competition theory of attention (Desimone & Duncan Annual Review of Neuroscience 18: 1995; Duncan, Humphreys, & Ward Current Opinion in Neurobiology 7: 255–261 1997) was used to explain the findings because, when the saliency of the visual stimuli was reduced by the addition of a noise filter in Experiment 4, visual interference on auditory target detection was diminished. Additionally, the results showed faster and more accurate target detection when semantic concepts were represented in a visual rather than an auditory format. 相似文献
875.
This study explored English as a second language (ESOL) preservice teachers’ conceptions of and abilities to provide scaffolded instruction. In-depth study of three interns indicated that each was unique with respect to their views of scaffolding and in the degree to which their implementation of scaffolded instruction changed over the course of the year. Participants differed in the focus of scaffolding and in their attempts to scaffold within lesson frameworks, across sequential lessons, and through responsive instruction. Though some preservice teachers can develop complex conceptions of the process, scaffolding is closely linked to interns’ understanding of language and literacy development. 相似文献
876.
You-Jin Kim Linn Van Dyne Dishan Kamdar Russell E. Johnson 《Organizational behavior and human decision processes》2013
We extend prior thinking about citizenship behavior by integrating employee motives, social support, and role cognitions as predictors of organizational citizenship behavior (OCB). Drawing on trait activation and situated self theories, we provide insights into why and when motives predict OCB using multi-source data from two field samples. In Study 1, we demonstrate that the quality of social support functions as a boundary condition that qualifies relations of motives with OCB. In Study 2, we introduce role cognitions as a proximal motivational factor that mediates the motives by social support interactions with OCB. Our results support the hypothesized moderated mediated model and enhance understanding of OCB by integrating the OCB motive and role cognition literatures, which to date have developed separately. As our results demonstrate, role cognitions, which are domain-specific felt obligations to perform OCB, mediate relations of more distal predispositions to perform OCB with helping and voice citizenship behaviors. 相似文献
877.
A Ti43Zr7Cu43Ni7 bulk metallic glass (BMG) exhibits a plastic strain of less than 0.2% under room-temperature compression. However, a Ti45Zr5Cu40Ni7.5Sn2.5 BMG developed by addition of Sn to Ti43Zr7Cu43Ni7 shows a significant improvement of ~14.8% to the plastic strain with work hardening. Microstructural comparison of these BMGs reveals that the addition of Sn leads to formation of nano-scale chemical heterogeneities throughout the material. These nano-scale chemical fluctuations play an important role in enhancing the plastic strain of (Ti–Cu)-based BMGs. 相似文献
878.
The deformation behaviour of pure copper single crystals has been investigated by scanning electron microscopy and synchrotron radiation using the in situ reflection Laue method. Two types of sample with the same orientation of tensile axes, but with different crystallographic orientations in the directions of the width and thickness of the samples, have been studied. They showed different characteristics of deformation behaviour, such as the activated slip systems, the movement of the tensile axis, and the mode of fracture. 相似文献
879.
J.S. Kim S. Yi Daniel J. Sordelet U. Kühn J. Eckert 《Philosophical Magazine Letters》2013,93(9):582-590
The change of the specific surface area in porous Ni59Zr20Ti16Si2Sn3 metallic glass (MG) upon partial crystallization was investigated. The observed increase in the surface area of the annealed Ni-based MG foams is due to the formation of homogeneously distributed Ni10(Zr,Ti)7 rod-shape intermetallic phases with nominal diameters around 250?nm and ~800?nm length on the surface of MG struts during the crystallization. For longer annealing, the specific surface area decreases again due to a change of the morphology of the crystals from rod-like to disc-like appearance, thus suggesting an optimum regime for increasing the specific surface area upon isothermal annealing at a given temperature. 相似文献
880.
The purpose of this paper is to propose a training program for creative problem solving based on computer programming. The proposed program will encourage students to solve real‐life problems through a creative thinking spiral related to cognitive skills with computer programming. With the goal of enhancing digital fluency through this proposed training program, we investigated its effects. Two sets of experiments were performed in which 119 typical students and 30 younger, gifted students participated. Two synthetic creative problem solving tests, which had a high correlation with logical ability, scientific problem solving ability and divergent thinking ability, were developed to measure creative problem solving ability. We provided the treatment group with a paper‐based booklet with relevant problems developed specifically for that group. ANCOVA statistical procedures were used to analyze the pre‐ and post‐synthetic creative problem solving tests. The findings of our study are as follows: with typical students, the originality of the treatment group outperformed the control group, a result that was compatible with previous research. With gifted students, the fluency of the treatment group outperformed the control group, and overall creative problem solving ability was enhanced. Remarkably, fluency increased significantly, a notable difference from the results of prior studies. In conclusion, we inferred that, given the definition of digital fluency, if creative problem solving ability is enhanced by a training program for creative problem solving based on computer programming, digital fluency will ultimately be improved. In this paper, we discuss the result of fluency enhancement that contradicts prior research. We suggest that this training program could be a new learning environment for the students who have grown up with digital media. 相似文献