全文获取类型
收费全文 | 4040篇 |
免费 | 282篇 |
国内免费 | 2篇 |
出版年
2023年 | 77篇 |
2022年 | 69篇 |
2021年 | 103篇 |
2020年 | 153篇 |
2019年 | 192篇 |
2018年 | 217篇 |
2017年 | 239篇 |
2016年 | 236篇 |
2015年 | 158篇 |
2014年 | 183篇 |
2013年 | 510篇 |
2012年 | 267篇 |
2011年 | 244篇 |
2010年 | 132篇 |
2009年 | 135篇 |
2008年 | 188篇 |
2007年 | 188篇 |
2006年 | 164篇 |
2005年 | 125篇 |
2004年 | 116篇 |
2003年 | 110篇 |
2002年 | 79篇 |
2001年 | 48篇 |
2000年 | 32篇 |
1999年 | 34篇 |
1998年 | 21篇 |
1997年 | 21篇 |
1996年 | 26篇 |
1995年 | 20篇 |
1994年 | 18篇 |
1993年 | 16篇 |
1992年 | 19篇 |
1991年 | 10篇 |
1990年 | 15篇 |
1989年 | 10篇 |
1988年 | 11篇 |
1987年 | 8篇 |
1986年 | 13篇 |
1985年 | 7篇 |
1984年 | 6篇 |
1983年 | 7篇 |
1982年 | 14篇 |
1981年 | 11篇 |
1980年 | 5篇 |
1979年 | 7篇 |
1977年 | 7篇 |
1976年 | 5篇 |
1970年 | 4篇 |
1965年 | 5篇 |
1963年 | 4篇 |
排序方式: 共有4324条查询结果,搜索用时 15 毫秒
851.
852.
This study investigates the influence of the acoustic properties of vowels on 6‐ and 10‐month‐old infants’ speech preferences. The shape of the contour (bell or monotonic) and the duration (normal or stretched) of vowels were manipulated in words containing the vowels /i/ and /u/, and presented to infants using a two‐choice preference procedure. Experiment 1 examined contour shape: infants heard either normal‐duration bell‐shaped and monotonic contours, or the same two contours with stretched duration. The results show that 6‐month‐olds preferred bell to monotonic contours, whereas 10‐month‐olds preferred monotonic to bell contours. In Experiment 2, infants heard either normal‐duration and stretched bell contours, or normal‐duration and stretched monotonic contours. As in Experiment 1, infants showed age‐specific preferences, with 6‐month‐olds preferring stretched vowels, and 10‐month‐olds preferring normal‐duration vowels. Infants’ attention to the acoustic qualities of vowels, and to speech in general, undergoes a dramatic transformation in the final months of the first year, a transformation that aligns with the emergence of other developmental milestones in speech perception. 相似文献
853.
Moritz M. Daum Maria T. Vuori Wolfgang Prinz Gisa Aschersleben 《Developmental science》2009,12(6):854-862
The present study applied a preferential looking paradigm to test whether 6‐ and 9‐month old infants are able to infer the size of a goal object from an actor's grasping movement. The target object was a cup with the handle rotated either towards or away from the actor. In two experiments, infants saw the video of an actor's grasping movement towards an occluded target object. The aperture size of the actor's hand was varied as between‐subjects factor. Subsequently, two final states of the grasping movement were presented simultaneously with the occluder being removed. In Experiment 1, the expected final state showed the actor's hand holding a cup in a way that would be expected after the performed grasping movement. In the unexpected final state, the actor's hand held the cup at the side which would be unexpected after the performed grasping movement. Results show that 6‐ as well as 9‐month‐olds looked longer at the unexpected than at the expected final state. Experiment 2 excluded an alternative explanation of these findings, namely that the discrimination of the final states was due to geometrical familiarity or novelty of the final states. These findings provide evidence that infants are able to infer the size of a goal object from the aperture size of the actor's hand during the grasp. 相似文献
854.
Sami Mynttinen Anna Sundström Marita Koivukoski Kari Hakuli Esko Keskinen Widar Henriksson 《Transportation Research Part F: Traffic Psychology and Behaviour》2009,12(2):120-130
Studies of subjective driving skill have usually assessed perceived driving skill in relation to the skills of the average driver. In order to examine whether novice drivers are overconfident with respect to their actual skills, a different method was used in the present study, where specific aspects of perceived driver competence were compared with assessments made by a driver examiner. A Finnish (n = 2847) and a Swedish (n = 805) sample of driving test candidates completed self-assessments and took a practical driving test; the instruments differed between the countries. The results indicated that about 50 percent of the Finnish and between 25 and 35 percent of the Swedish candidates made realistic assessments of their competence in the areas Vehicle manoeuvring, Economical driving and Traffic safety. The proportion of those who overestimated their competence was greater among the Swedish candidates than the Finnish candidates. This might be explained by greater possibilities of practicing self-assessment in the Finnish driver education. Furthermore, the results indicate that males are not overconfident to a greater extent than females. In conclusion, when perceived competence is related to actual competence instead of the skills of the average driver, the majority of drivers are no longer found to overestimate their skills. 相似文献
855.
Teachers’ burnout, depression, role ambiguity and conflict 总被引:1,自引:0,他引:1
Antonia Papastylianou Maria Kaila Michael Polychronopoulos 《Social Psychology of Education》2009,12(3):295-314
The present study investigates issues associated with teachers’ burnout in primary education as related to depression and
role conflict–ambiguity. At the time of the study the participants (562 teachers) were working in seventy nine (79) Primary
Education State Schools in Greece (Athens and two prefectures in the southern part of the country). The results showed that
of the three factors comprising the Burnout inventory (MBI, Maslach and Jackson, MBI: Maslach Burnout Inventory; manual research
edition, 1986), (i.e., Emotional exhaustion, Personal accomplishment, Depersonalization) Emotional Exhaustion showed a statistically significant (positive) correlation with the factors that comprise: (a) the Scale of Depression (CES-D:
Ensel, in: Lin et al. (eds.) Social support, life events and depression, 1986; Radloff, Applied Psychological Measurement 1: 385–401, 1977) such as Depressed affect, Somatic retarded activity and (b) Degree of Role Conflict (Role Conflict and Role Ambiguity Scale, Rizzo et al., Administrative Science Quarterly, 15:150–163, 1970, adapted in Greek
by Koustelios and Kousteliou, Psychological Reports, 82:131–136, 1998); similarly, Positive affect (CES-D) and Degree of Role Clarity (Role Conflict and Role Ambiguity Scale) showed a statistically significant (negative) correlation with the same factor (Emotional exhaustion). Furthermore, a regression analysis performed with Personal accomplishment as the dependent variable showed that the (combined) factors of Role Ambiguity, Positive Affect and Somatic Retarded Activity contributed significantly to the prediction of the dependent variable; A third regression analysis performed with Depersonalization as dependent variable showed that Somatic Retarded Activity, Role Conflict, Positive Affect, Interpersonal Affect and Role Ambiguity contributed significantly to the prediction of this variable. Overall, the results showed that Greek teachers experience
low-moderate levels of Burnout, Depression, Role conflict and Role ambiguity. 相似文献
856.
Existing research about subjective wellbeing (SWB) in China is confined to student and urban samples, even though 60% of the
population reside in rural areas. It is reasonable to predict that there could be a rural-urban difference in SWB as there
is a marked difference in objective (socio-economic) measures of wellbeing. The present study measured SWB within a sample
of Chinese peasants living in a remote farming village. The results show that despite their relatively low socioeconomic conditions,
the rural residents’ satisfaction levels were within the normative range for the Chinese population, and generally did not
differ significantly from a previously published study in an affluent Chinese region (Hong Kong). In-depth interviews with
participants revealed that the lower living conditions in the rural area are not adverse to drive SWB below the normative
range.
相似文献
Gareth DaveyEmail: |
857.
Henning Plessner Christian Unkelbach Daniel Memmert Anna Baltes Andreas Kolb 《Psychology of sport and exercise》2009,10(1):108-115
ObjectivesAccording to regulatory focus theory, goal pursuit can be achieved by either keeping a promotion or a prevention focus [Higgins, E. T. (1997). Beyond pleasure and pain. American Psychologist, 52, 1280–1300; Higgins, E. T. (2000). Making a good decision: value from fit. American Psychologist, 55, 1217–1230]. Moreover, it has been assumed that people experience fit when they pursue a goal in a manner that sustains their chronic orientation and that fit has a positive impact on performance. In two studies, we investigated the significance of regulatory focus and fit in the realm of sports performance, such as the success rate in a soccer penalty-shooting task.Methods and ResultsIn a pilot study, we assessed the chronic regulatory orientation of 211 athletes from different sports. Among others, we found more promotion focus with attackers than with defenders. In the main study, we assessed the chronic regulatory orientation of 20 soccer players who took part in a penalty-shooting task. For half of them, the task was described in terms of promotion, for the others in terms of prevention. We found a positive impact of regulatory fit on scoring performance.ConclusionsOur findings demonstrate a great potential of regulatory focus theory for the understanding and enhancement of sport performance. The assessment of athletes' chronic regulatory orientation could be of importance for the selection of athletes, the adjustment of tactics and strategies, and coaches' framing of instructions. 相似文献
858.
859.
Nancy A. Orel Laura Landry‐Meyer Maria A. S. Spence 《Adultspan: Theory Research & Practice》2007,6(1):49-62
Providing the essential care for children and aged relatives has immediate and long‐term financial consequences for women, particularly financial insecurity in retirement. Women's caregiving careers are examined in relationship to the impact on retirement. The need for career and retirement education and counseling aimed at women who assume caregiving roles is addressed. 相似文献
860.
von Leupoldt A Rohde J Beregova A Thordsen-Sörensen I zur Nieden J Dahme B 《Behavior research methods》2007,39(3):606-609
Standardized sets of films have been shown to be effective for eliciting emotional states in adults, but no comparable validated stimuli are available for children. We therefore examined the effects of three pre-selected film clips each of 3-min duration in eliciting a pleasant, neutral and unpleasant emotional state in 297 children aged between 6 and 12 years. After the films were presented on a video projector, affective ratings were obtained with the Self-Assessment-Manikin on the emotional dimensions of valence and arousal. Increasing pleasure ratings were observed from the unpleasant to the neutral to the pleasant film. Associated arousal ratings were stronger for the unpleasant and pleasant films compared to the neutral film. Overall, results showed successful elicitation of targeted emotional states only marginally influenced by age, gender or prior experience with the films. The use of these films is therefore suggested for future studies on emotions in children. 相似文献