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21.
时间、目的与行为特征对群体决策绩效的影响 总被引:1,自引:0,他引:1
96名大学生,4人一组,参加了评价警察行为的决策实验.研究采用2×2×2(时间×目的×行为特征)因子式设计,旨在分析时间、目的和行为特征如何对中国人群体决策行为产生影响.结果表明,决策群体在行为记忆上的准确性优于成员个体,但群体的决策标准比个体冒险;时间、目的及行为特征影响群体决策的绩效.结论支持了"互补性假设"及K R Murplhy对时间与目的之间交互作用的解释. 相似文献
22.
This research investigated mothers' affect in the context of children's homework. Mothers (N = 109) of children 8 to 12 years old were interviewed daily about their affect while interacting with children, their assistance with children's homework, and children's behavior while completing homework. At this time and 6 months later, children's motivational and emotional functioning was assessed. Although mothers' negative affect was lower than their positive affect, it was elevated on days their assistance with homework was high. This was accounted for by mothers' perceptions of children as helpless on days they provided heightened assistance. Mothers' positive affect in the homework context buffered children's motivational and emotional functioning against mothers' negative affect as well as children's helplessness. 相似文献
23.
本文在占有翔实资料的基础上,对张三丰的道教文艺理论思想进行了重新审视,并从两个方面进行了详细的分析:一、"道"、"时"相联的思想;二、"灵性"观的提出.放到中国古代文艺理论中,可以发现,张三丰的文艺理论思想是整个古代文论的一个有机组成部分,不可或缺.因此,本文对张三丰文艺理论思想的研究和探讨具有一定的代表性. 相似文献
24.
Héctor?R.?BirdEmail author Mark?Davies Glorisa?Canino Rolf?Loeber Maritza?Rubio-Stipec Sa?Shen 《Journal of child and family studies》2005,14(3):325-341
Antisocial behaviors were systematically classified along a hierarchy of seriousness or severity that also accounted for frequency of occurrence and heterogeneity of behaviors. Items from the CD and ODD schedules of the NIMH DISC-IV and from the Elliot Delinquency Scales were listed at specified frequencies. Nine mental health clinicians rated the level of seriousness of each alternative on a scale from 0 (trivial) to 5 (very serious). Reliability of the ratings was assessed. Over two thirds of the items showed excellent agreement among the raters, 8% showed poor agreement and 21% showed fair to moderate agreement. The overall reliability of a single rater’s score was 0.56 and the reliability of the average was 0.84. The classification meets high psychometric standards for reliability and has face validity. The final output provides a classification along a spectrum that takes into account severity, frequency of occurrence during the previous year, and presence of multiple behaviors. It is useful for classification purposes and for longitudinal tracking of antisocial behavior. 相似文献
25.
The present experiment examined the one-target advantage (OTA) with regard to saccadic eye movements. The OTA, previously found with manual pointing responses, refers to the finding that movements are executed faster when the limb is allowed to stop on the target compared to the situation where it has to proceed and hit a second target. Using an adapted limb movement OTA task, saccades of 5 degrees and 15 degrees were made to (a) a single target (one-target), (b) one target and immediately to another target without a change in direction (two-target-extension), and (c) one target and immediately back to the start location (two-target-reversal). Unlike manual movements, the movement times for the initial saccade in the two-target-extension condition were not prolonged compared to either of the other two conditions. Moreover, this pattern of results was found for both the shorter and longer amplitude saccades. The results indicate that the OTA does not occur in the oculomotor system and therefore is not a general motor control phenomenon. 相似文献
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Stress can disrupt endocrine signalling in the male reproductive axis through high concentrations of glucocorticoids, the hallmark of stress. Our previous work revealed that a stress level of exogenous glucocorticoids could induce apoptosis of rat Leydig cells, which are the primary source of testosterone. The aim of this study was to investigate whether stress can induce apoptosis in rat Leydig cells in vivo and, if so, whether the process is the result of a direct effect of glucocorticoids. In a chronically stressed rat model, serum corticosterone concentration was increased significantly whereas serum testosterone was decreased. The frequency of apoptotic Leydig cells in stressed rats was also increased. Adrenalectomised rats subjected to chronic stress showed an elevated serum testosterone, while the apoptotic frequency of Leydig cells was not increased. It was established that glucocorticoid-induced Leydig cell apoptosis is mediated by glucocorticoid receptors (GRs), which translocate from cytoplasm to nucleus. Adenovirus microRNA-induced downregulation of GR expression in vitro alleviated the corticosterone-induced increase in apoptosis of Leydig cells. These results indicate that the stress-induced increase in corticosterone secretion resulted in apoptosis in rat Leydig cells in vivo, and thereby decreased testosterone synthesis. 相似文献
30.
Teri?Brister Mary?A.?CavaleriEmail author S.?Serene?Olin Sa?Shen Barbara?J.?Burns Kimberly?E.?Hoagwood 《Journal of child and family studies》2012,21(3):439-442
This brief report describes results from an evaluation of NAMI Basics, a peer-delivered family education program for family
caregivers of children and adolescents with mental illness. Over six classes, family members are given information (e.g. education
about mental illness and treatments), skills training (e.g. family communication skills) and advocacy support. We report data
from 36 caregivers who completed pre and posttest instruments measuring self-care, empowerment, and family problem-solving
and communication skills. Results showed significant improvements in self-care, empowerment, and “incendiary” family communication
after participation in the program. Results suggest that NAMI Basics may improve both parental functioning and familial processes.
Implications and future directions are discussed. 相似文献