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521.
The dynamical systems theory of groups claims that interpersonal political environment and party identification are dynamically interrelated to provide heuristics under uncertainty. Panel data over the course of a year examined the longitudinal dynamics between social networks, social identifications, and voting behavior among a national sample of registered voters in Japan and a regional sample in Wellington, New Zealand. Respondents with more stable party identification had greater stability in the political preferences of their interpersonal network in both countries; moreover, stability in party identification was predicted by interpersonal political environment and older age in both countries. Stability of party identification predicted voting consistency in both countries, whereas stability of interpersonal political environment made an independent contribution to voting consistency in Japan only. There were cultural differences in levels of interpersonal political environment stability, but the amount of political discussion and ideological stability did not make independent contributions to any of the three main variables. Results provided support for the dynamical systems theory of groups. 相似文献
522.
Kirby Deater‐Deckard Jessica Smith Linda Ivy Stephen A. Petril 《Infant and child development》2005,14(2):211-225
Parenting stress is influenced by parents' perceptions of their relationships with their children, which can vary widely for each parent depending on which child in the family is being considered. Because this within‐parent variation is rarely studied, we investigated some of the differential perceptions that arise with respect to children's behaviour problems and parent–child negativity/positivity. Participants included a national sample of adoptive parents of 486 pairs of genetically unrelated siblings. Mothers reported different perceptions of their sibling children, and within the family, the child who was rated higher in behaviour problems also was regarded with more negativity and less positivity. Furthermore, the magnitude of the difference was uncorrelated with various indicators of the family and home environment, including parental education and occupational prestige, type of housing and crowding in the home, and progressive versus traditional childrearing attitudes. This pattern of results was consistent with three previously published sibling studies utilizing similar methods. The results point to the importance of examining child effects and within‐parent differences in subjective aspects of the parenting experience. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
523.
Speakers of many languages around the world rely on body‐based contrasts (e.g., left/right ) for spatial communication and cognition. Speakers of Yupno, a language of Papua New Guinea's mountainous interior, rely instead on an environment‐based uphill/downhill contrast. Body‐based contrasts are as easy to use indoors as outdoors, but environment‐based contrasts may not be. Do Yupno speakers still use uphill/downhill contrasts indoors and, if so, how? We report three studies on spatial communication within the Yupno house. Even in this flat world, uphill/downhill contrasts are pervasive. However, the terms are not used according to the slopes beyond the house's walls, as reported in other groups. Instead, the house is treated as a microworld, with a “conceptual topography” that is strikingly reminiscent of the physical topography of the Yupno valley. The phenomenon illustrates some of the distinctive properties of environment‐based reference systems, as well as the universal power and plasticity of spatial contrasts. 相似文献
524.
抑郁具有复杂的多基因遗传基础,然而既有研究大多采用单基因以及单基因-环境交互设计(G×E)考察抑郁的遗传机制。以757名男青少年为被试(初次测评时Mage=11.32岁,SD=0.49岁),采用多基因-环境交互(G×G×E)设计,本研究考察了MAOA(monoamine oxidase A,单胺氧化酶A)基因T941G多态性、COMT(catechol-O-methyltransferase,儿茶酚胺氧位甲基转移酶)基因Val158Met多态性与同伴侵害对青少年早期抑郁的影响。结果显示,MAOA基因T941G多态性与同伴侵害交互作用于青少年抑郁,同伴侵害仅显著正向预测G等位基因(而非T等位基因)青少年抑郁。而且,MAOA基因T941G多态性与同伴侵害的交互作用受到COMT基因Val158Met多态性的调节,上述交互作用仅存在于COMT Met等位基因而非Val/Val基因型携带者中。研究结果显示,抑郁的产生与个体差异存在多基因与环境间的复杂交互机制。 相似文献
525.
Kara J. Blacker Steven M. Weisberg Nora S. Newcombe Susan M. Courtney 《Visual cognition》2017,25(7-8):691-702
Spatial working memory (WM) seems to include two types of spatial information: locations and relations. However, this distinction has been based on small-scale tasks. Here, we used a virtual navigation paradigm to examine whether WM for locations and relations applies to the large-scale spatial world. We found that navigators who successfully learned two routes and also integrated them were superior at maintaining multiple locations and multiple relations in WM. However, over the entire spectrum of navigators, WM for spatial relations, but not locations, was specifically predictive of route integration performance. These results lend further support to the distinction between these two forms of spatial WM and point to their critical role in individual differences in navigation proficiency. 相似文献
526.
527.
将一个图形(称为母图)的若干条线段删除后得到的图形叫做母图的子图。运用实验方法探讨了子图结构学习和子图变式学习对解决问题的迁移效果。结果表明:子图结构学习仅对解决“图形结构相同、逻辑结构相同”问题有明显迁移作用;子图变式学习对解决“图形结构相同、逻辑结构相同”没有明显迁移作用,对“图形结构相似、逻辑结构相同”、“图形结构相同、逻辑结构相似”以及“图形结构相似、逻辑结构相似”四类问题均有明显迁移作用。 相似文献
528.
We examined the relationships between executive functioning, family environment, and parenting practices in children diagnosed
with ADHD as compared to children without ADHD. Participants were parents (N = 134) of 6- to 12-year-old ADHD and non-ADHD-diagnosed children. Compared to the control group, parents of children diagnosed
with ADHD reported their children as exhibiting greater problems with behavioral control and metacognitive abilities, and
described their family environments as less organized and higher in family conflict. Family environment and parenting practices
were not correlated with behavioral control or metacognitive abilities in children with ADHD. In children without ADHD, higher
levels of family cohesion, organization, and expressiveness, and lower levels of family conflict, were significantly correlated
with greater behavioral control. Higher levels of family cohesion and organization were significantly and positively associated
with regulation of metacognitive abilities in children without ADHD. In general, aspects of the family environment and parental
limit setting appear to be associated with the development of executive functions in children not diagnosed with ADHD; however,
family environment and parenting practices were not associated with executive functions in children diagnosed with ADHD. 相似文献
529.
Participants maneuvered a rat image through a circular region on the computer screen to find a hidden target platform, blending aspects of two well-known spatial tasks. Like the Morris water maze task, participants first experienced a series of learning trials before having to navigate to the hidden target platform from different locations and orientations. Like the dot-location task, they determined the location of a position within a two-dimensional circular region. This procedure provided a way to examine how the number of surrounding cues (1, 2, or 3) affects the memory for spatial location in navigation. Memory performance was better when there were more cues and when targets were close to cues, consistent with the idea that cues bolster fine-grain memory, especially in proximal regions. Early and late measures of bias in memory reflected biases in a direction toward the nearest cue, implicating a cue-based category structure of the navigational space. Collectively, results suggest cue-based spatial memory representations that have been inferred from the dot-location task generalize to a navigation task within a simple, computer-based environment, as demonstrated by the good fits of the spatial model developed for the dot-location task ( Fitting, Wedell, & Allen, 2005, 2007 ). 相似文献
530.
Beyond genetic explanations for leadership: The moderating role of the social environment 总被引:1,自引:0,他引:1
Zhen Zhang Remus Ilies Richard D. Arvey 《Organizational behavior and human decision processes》2009,110(2):118
Leadership role occupancy has recently been shown to have a genetic basis. We extend prior research by examining the moderating effects of the social environment during adolescence on the genetic influences on leadership role occupancy at work. Utilizing a sample of male twins (89 pairs of identical and 54 pairs of fraternal twins, with a mean age of 36.5 years), we found that genetic influences are weaker for those reared in enriched environments (i.e., higher family socioeconomic status, higher perceived parental support, and lower perceived conflict with parents). For those twins who had relatively poorer social environments, genetic influences on leadership role occupancy are significantly greater. These results have important implications for early interventions on leadership development inside and outside organizations. 相似文献