全文获取类型
收费全文 | 422篇 |
免费 | 22篇 |
出版年
2024年 | 3篇 |
2023年 | 8篇 |
2022年 | 7篇 |
2021年 | 8篇 |
2020年 | 15篇 |
2019年 | 13篇 |
2018年 | 18篇 |
2017年 | 21篇 |
2016年 | 21篇 |
2015年 | 9篇 |
2014年 | 14篇 |
2013年 | 56篇 |
2012年 | 22篇 |
2011年 | 27篇 |
2010年 | 16篇 |
2009年 | 10篇 |
2008年 | 18篇 |
2007年 | 16篇 |
2006年 | 17篇 |
2005年 | 8篇 |
2004年 | 9篇 |
2003年 | 13篇 |
2002年 | 5篇 |
2000年 | 5篇 |
1999年 | 3篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 5篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 6篇 |
1991年 | 2篇 |
1990年 | 5篇 |
1988年 | 4篇 |
1984年 | 4篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1980年 | 2篇 |
1979年 | 5篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1974年 | 3篇 |
1971年 | 2篇 |
1969年 | 1篇 |
1967年 | 1篇 |
1966年 | 4篇 |
1965年 | 3篇 |
1964年 | 1篇 |
1961年 | 1篇 |
排序方式: 共有444条查询结果,搜索用时 20 毫秒
81.
We investigated the internal structure of words in the mental lexicon by using a crossword puzzle paradigm. In two experiments, subjects were presented with word fragments along with a semantic cue, and were asked to retrieve the whole word that contained the presented fragment and was compatible with the semantic information. In Experiment 1, we found that any cluster of three adjacent letters facilitated retrieval better than dispersed letters. Moreover, syllabic clusters had a greater facilitative effect than nonsyllabic pronounceable clusters or nonpronounceable clusters. In Experiment 2, we found that syllable units facilitated retrieval better than morphemic units. The results are interpreted as evidence for the existence of lexical subunits that are larger than the letter but smaller than the word, and that are organized according to phonologic principles. We propose an interactive model for how crossword puzzles are solved. 相似文献
82.
83.
85.
Aims: This study (1) profiled the well‐being of first year students entering one UK university, and (2) explored whether initial well‐being and year end academic performance were correlated. Method: A total of 117 students (mean age 21, 67% female) completed the Rosenberg Self‐Esteem Scale, Clinical Outcomes in Routine Evaluation‐General Population, and Liebowitz Social Anxiety Scale; academic achievement data were collected from academic records. Results: Almost a quarter of the sample reported quasi‐clinical levels of psychological distress and moderate to very severe social anxiety. Quasi‐clinical levels of psychological distress were associated with low self‐esteem and social anxiety. No statistically significant links were found between well‐being as assessed at the beginning of the first year and academic achievement at the end of the first year. Discussion: The failure to find a link in this study between initial well‐being and academic performance at the end of the first year suggests that further investigation is required to understand how academic achievement is related to student well‐being. 相似文献
86.
Clarissa Marceli Trentini Eduardo Chachamovich Gabriela Peretti Wagner Daniela Helena M��ller Vania Naomi Hirakata Marcelo Pio de Almeida Fleck 《Applied research in quality of life》2011,6(3):291-309
The aim of the present study was to identify relevant variables associated with Quality of Life (QoL) in older adults. Older
adults, up to 60 years old, were interviewed. Subjects were recruited through convenience sampling. 339 paticipants, who were
stratified by gender, age, and subjective perception of health and illness, answered questions on sociodemographic issues,
QoL (WHOQOL-100) and depressive symptomathology (Beck Depression Inventory—BDI). The multiple linear regression analysis showed
associations of overall perception of QoL with depression levels, subjective perception of health status and gender. The individual
analysis of each domain concluded that depression levels are correlated to all QoL domains, while health status was associated
with physical, psychological, independence level and social relationship domains. Other variables were also assessed. The
assessment of older adults concerning their QoL perceptions is associated with gender, age, marital status, social class,
literacy rate, perception of health, and more substantially associated with depressive symptoms levels. Nevertheless, some
limitations of this study and further ones are suggested. 相似文献
87.
This study examines whether public opinion parallels recent judicial and statutory changes limiting the applicability of capital sentences to offenders younger than 18 years old. Two hundred and thirty-five undergraduate students were administered a vignette of a capital case and asked to render a sentence of death or life in prison without parole. Results revealed that age of the defendant was not a significant predictor of sentence type; participants sentenced 16- and 17-year-old defendants similarly to 18- and 25-year-old defendants. Therefore, public opinion appears inconsistent with legal and legislative changes to abandon the practice of executing juveniles. Findings also suggested that perceived level of the defendant's responsibility and general opinion about capital sentences significantly predicted sentence type; perceptions of greater responsibility were associated with an increased likelihood of a death sentence. However, participants did not perceive differences in responsibility between juvenile and adult defendants. In addition, participants were more comfortable sentencing defendants to death compared with life in prison. 相似文献
88.
What affects speakers' production of ambiguous utterances in dialogue? They might consider ease of production for themselves, or ease of comprehension for their addressees. Previous research has demonstrated that ease of production plays a role in speakers' syntactic choices, but that ease of comprehension does not. However, such studies have not employed dialogues that involve role swapping on a turn-by-turn basis. In our experiment, participants alternated in giving and following instructions to move objects around on a grid. They tended to repeat the syntactic form just used by their interlocutor, reflecting sensitivity to ease of production. More interestingly, they were more likely to disambiguate their utterances when the visual context was potentially ambiguous than when it was not, reflecting sensitivity to ease of comprehension. We conclude that speakers pay attention to their beliefs about their addressees' ease of comprehension, in addition to considering ease of production for themselves. 相似文献
89.
Two studies investigated the impact of past ingroup experiences on individual aspirations and effort. Participants were told that in the past, members of their group had either been offered no opportunities (closed), few opportunities (token), or equal opportunities (open) to achieve a desired outcome. The results show that past group experiences determine responses to current opportunities and affect the perceived feasibility of individual success as well as individual performance. Exposure to a token system has different effects, depending on whether the group is historically advantaged or disadvantaged. Whereas those with a collective history of success see token mobility as a challenge and show superior performance, the same situation constitutes a threat to members of a historically disadvantaged group, who fail to take advantage of the opportunities offered to them and perform suboptimally. 相似文献
90.
Oishi K Nishio N Konishi K Shimokawa M Okuda T Kuriyama T Machida K 《Stress (Amsterdam, Netherlands)》2003,6(1):33-40
To study the effects of different types or durations of stressors on immune functions, male Fischer rats were exposed to chronic physical (electric foot shock) or psychological (non-foot shock) stress induced in the communication box. Superoxide production by alveolar macrophages (AMs), mitogen-induced splenic lymphocyte proliferation, and splenic natural killer (NK) cell cytolysis were examined in vitro. Repeated exposure to physical stress suppressed superoxide production by AMs (-58%, p<0.05 for opsonized zymosan (OZ) and -51%, p<0.05 for phorbol 12-myristate 13-acetate (PMA)), although psychological stress suppressed superoxide production after 24 h of repeated exposures (-40%, p<0.05 for OZ and -47%, p<0.05 for PMA). Acute suppression of the blastic response of splenic lymphocytes was only found in the physical stress group (p<0.05), although the chronic effects were only found in the psychological stress group (p<0.05). NK cell activity was suppressed immediately after the acute physical stress (-30%, p<0.05), but no effects were found in the psychological stress group. These results underline the importance of distinguishing between physical versus psychological stressors when examining the effects of stress on immune functions. 相似文献