全文获取类型
收费全文 | 2952篇 |
免费 | 33篇 |
专业分类
2985篇 |
出版年
2024年 | 32篇 |
2023年 | 27篇 |
2022年 | 16篇 |
2021年 | 25篇 |
2020年 | 71篇 |
2019年 | 70篇 |
2018年 | 100篇 |
2017年 | 91篇 |
2016年 | 84篇 |
2015年 | 78篇 |
2014年 | 75篇 |
2013年 | 288篇 |
2012年 | 114篇 |
2011年 | 114篇 |
2010年 | 85篇 |
2009年 | 65篇 |
2008年 | 99篇 |
2007年 | 107篇 |
2006年 | 96篇 |
2005年 | 65篇 |
2004年 | 80篇 |
2003年 | 51篇 |
2002年 | 56篇 |
2001年 | 123篇 |
2000年 | 127篇 |
1999年 | 80篇 |
1998年 | 19篇 |
1997年 | 31篇 |
1996年 | 26篇 |
1995年 | 16篇 |
1994年 | 22篇 |
1993年 | 18篇 |
1992年 | 43篇 |
1991年 | 55篇 |
1990年 | 48篇 |
1989年 | 42篇 |
1988年 | 43篇 |
1987年 | 29篇 |
1986年 | 20篇 |
1985年 | 23篇 |
1984年 | 25篇 |
1983年 | 19篇 |
1981年 | 16篇 |
1979年 | 20篇 |
1976年 | 16篇 |
1974年 | 19篇 |
1973年 | 16篇 |
1971年 | 17篇 |
1970年 | 16篇 |
1967年 | 16篇 |
排序方式: 共有2985条查询结果,搜索用时 0 毫秒
201.
Despite the importance of understanding the emotional aspects of organizational decision making, prior research has paid scant attention to the role of emotion in escalation of commitment. This article attempts to fill this gap by examining the relationship between negative affect and escalation of commitment. Results showed that regardless of whether negative affect was measured as a dispositional trait (Neuroticism) in Studies 1 and 2 or as a transient mood state in Study 3, it was negatively correlated with escalation tendency when one was personally responsible for a prior decision. This pattern of results is consistent with the predictions derived from the coping perspective, suggesting that people seek to escape from the unpleasant emotions that are associated with escalation situations. 相似文献
202.
203.
Previous work on human memory has shown that prompting participants with false events and self-relevant information via different types of media such as narratives, edited 2-dimensional images, and mental imagery creates false memories. This study tested a new form of media for studying false memory formation: Immersive Virtual Environment Technology (IVET). Using this tool, we examined how memory was affected by viewing dynamic simulations of avatars performing novel actions. In the study, 55 preschool and elementary children were randomly assigned to 1 of 4 memory prompt conditions (idle, mental imagery, IVET simulation of another child, or IVET simulation of self). Each child was questioned 3 different times: once before the memory prompt, once immediately after the memory prompt, and once approximately 5 days after the memory prompt. Results showed that preschool children were equally likely to develop false memories regardless of memory prompt condition. But, for elementary children, the mental imagery and IVET self conditions caused significantly more false memories than the idle condition. Implications regarding the use of digital media in courtroom settings, clinical therapy settings, entertainment, and other applications are discussed. 相似文献
204.
Y. Z. Liu X. T. Zu J. Lian L. Wang X. Q. Huang Z. G. Wang 《Philosophical Magazine Letters》2013,93(11):705-712
Ti–Al–Zr alloy has been oxidized at 360°C in alkaline steam at a pressure of 10.3?±?0.7?MPa. Cross-sectional transmission electron microscopy (TEM) observations indicated that the oxide scale of Ti–Al–Zr alloy was composed of outer and inner subscales, in which the outer layer consists of anatase-TiO2 and the inner layer a mixture of TiO and Ti2O. The thickness of the Ti2O, TiO and anatase-TiO2 were approximately 50, 100 and 400?nm, respectively. These results were confirmed by X-ray energy dispersive spectrometry (EDS) measurements. The enhanced corrosion of titanium alloys in LiOH solution is attributed to a high hexagonal Ti2O to tetragonal TiO2 phase transformation rate induced by the substitution of Li+ for Ti4+ in the oxide layer. 相似文献
205.
The time courses for implicit and explicit conceptual tests of memory were compared in two experiments. In Experiment 1, participants encoded target words by judging the apparent pleasantness of their meaning. Immediately thereafter or 48 h later, retrieval cues were presented to different groups of participants for either an implicit or an explicit free-association task. Whereas explicit test performance showed a decline over the 48-h delay, implicit test performance was statistically unaltered. In Experiment 2, memory was tested at five retention intervals, lasting up to 3 weeks. The forgetting functions of both implicit and explicit tests conformed to a logarithmic function. Despite the large conceptual priming effect, which resulted from relational encoding instructions, implicit memory performance still declined at a much slower rate than did performance on the cued-recall test. We argue that because nominal conceptual cues were held constant across the implicit and the explicit conditions, the observed dissociation in performance supports a memory systems approach. 相似文献
206.
Exploring the structure of strength-related attitude features: the relation between attitude importance and attitude accessibility 总被引:3,自引:0,他引:3
One of the most significant current controversies in the attitude literature involves the latent structure of attitude attributes related to their strength. Four studies were conducted to explore whether 2 strength-related attributes (importance and accessibility) are affected identically by various manipulations (which would suggest that they reflect a single latent construct) and whether the attributes cause one another (which would suggest they are distinct constructs). Three laboratory experiments and I survey study show that (a) repeated expression and personal relevance manipulations have different effects on importance and accessibility and (b) increased importance can cause heightened accessibility. Thus, these 2 attitude attributes appear to constitute related but independent constructs. These studies therefore help to illuminate the nature of attitude strength and the interplay of its sources. 相似文献
207.
J R Booth D D Burman F W Van Santen Y Harasaki D R Gitelman T B Parrish M M Marsel Mesulam 《Child neuropsychology》2001,7(3):119-141
Functional magnetic resonance imaging (fMRI) was used to examine differences between children (9-12 years) and adults (21-31 years) in the distribution of brain activation during word processing. Orthographic, phonologic, semantic and syntactic tasks were used in both the auditory and visual modalities. Our two principal results were consistent with the hypothesis that development is characterized by increasing specialization. Our first analysis compared activation in children versus adults separately for each modality. Adults showed more activation than children in the unimodal visual areas of middle temporal gyrus and fusiform gyrus for processing written word forms and in the unimodal auditory areas of superior temporal gyrus for processing spoken word forms. Children showed more activation than adults for written word forms in posterior heteromodal regions (Wernicke's area), presumably for the integration of orthographic and phonologic word forms. Our second analysis compared activation in the visual versus auditory modality separately for children and adults. Children showed primarily overlap of activation in brain regions for the visual and auditory tasks. Adults showed selective activation in the unimodal auditory areas of superior temporal gyrus when processing spoken word forms and selective activation in the unimodal visual areas of middle temporal gyrus and fusiform gyrus when processing written word forms. 相似文献
208.
We described disorders of a patient which were uniquely restricted to speech perception of syllable sequences after brain damage. The results of series of experiments using syllable sequences showed "negative recency effect," in which the subject's repetition performance at the latter syllable position was remarkably poor. Experimental analyses suggested that the "negative recency effect" could be due to dual factors: the lower rate of processing of speech sounds and the memory load of holding processes of preceding syllables imposed on the succeeding phonological processing. The results also suggested that the holding processes which imposed the memory load on the succeeding auditory phonological coding processing were modality nonspecific. 相似文献
209.
Emotion influences memory in many ways. For example, when a mood-dependent processing shift is operative, happy moods promote
global processing and sad moods direct attention to local features of complex visual stimuli. We hypothesized that an emotional
context associated with to-be-learned facial stimuli could preferentially promote global or local processing. At learning,
faces with neutral expressions were paired with a narrative providing either a happy or a sad context. At test, faces were
presented in an upright or inverted orientation, emphasizing configural or analytical processing, respectively. A recognition
advantage was found for upright faces learned in happy contexts relative to those in sad contexts, whereas recognition was
better for inverted faces learned in sad contexts than for those in happy contexts. We thus infer that a positive emotional
context prompted more effective storage of holistic, configural, or global facial information, whereas a negative emotional
context prompted relatively more effective storage of local or feature-based facial information 相似文献
210.
Factors affecting the involvement of teachers in guidance and counselling as a whole-school approach
This study explores factors affecting the involvement of regular secondary school teachers in the whole-school approach to guidance and counselling by interviewing 12 secondary school teachers in Hong Kong. Emerging themes include teachers' ownership of their role in student guidance and counselling, the alignment of their disposition with education policies, school missions and culture, and their philosophy in education. Findings of what these teachers are actually doing in guidance and counselling are presented. Implications for policy-makers, administrators and leaders for comprehensive guidance and counselling programmes are drawn from constraints that limit interviewees' full potential in assisting students. 相似文献