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Neeltje E. Blankenstein Eva H. Telzer Kathy T. Do Anna C.K. van Duijvenvoorde Eveline A. Crone 《Child development》2020,91(3):e665-e681
This study tested the pathways supporting adolescent development of prosocial and rebellious behavior. Self-report and structural brain development data were obtained in a three-wave, longitudinal neuroimaging study (8–29 years, N = 210 at Wave 3). First, prosocial and rebellious behavior assessed at Wave 3 were positively correlated. Perspective taking and intention to comfort uniquely predicted prosocial behavior, whereas fun seeking (current levels and longitudinal changes) predicted both prosocial and rebellious behaviors. These changes were accompanied by developmental declines in nucleus accumbens and medial prefrontal cortex (MPFC) volumes, but only faster decline of MPFC (faster maturity) related to less rebellious behavior. These findings point toward a possible differential susceptibility marker, fun seeking, as a predictor of both prosocial and rebellious developmental outcomes. 相似文献
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This work describes the development of a prototypic microfluidic platform for the generation of stepwise concentration gradients of drugs. A sensitive apoptotic analysis method is integrated into this microfluidic system for studying apoptosis of HeLa cells under the influence of anticancer drug, etoposide, with various concentrations in parallel; it measures the yellow fluorescent protein∕cyan fluorescent protein fluorescence resonance energy transfer (FRET) signal that responds to the activation of caspase-3, an indicator of cell apoptosis. Sets of microfluidic valves on the chip generate stepwise concentration gradient of etoposide in various cell-culture microchambers. The FRET signals from multiple chambers are simultaneously monitored under a fluorescent microscope for long-time observation and the on-chip results are compared with those from 96-well plate study and the methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay. The microfluidic platform shows several advantages including high-throughput capacity, low drug consumption, and high sensitivity. 相似文献
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Lynn D. Dierking Leslie M. Adelman Jackie Ogden Kathy Lehnhardt Lance Miller Jill D. Mellen 《Curator: The Museum Journal》2004,47(3):322-343
Abstract Over the last 10 to 15 years, zoos and aquariums have set out to influence visitors' conservation‐related knowledge, attitudes, affect, and behavior. In 2000, the Institute for Learning Innovation collaborated with Disney's Animal Kingdom (DAK) on a comprehensive baseline study conducted to assess the outcomes of a DAK experience on visitors in four areas: knowledge, attitudes, affect, and behavior. This article describes one aspect of the comprehensive study: an investigation of the long‐term (two‐to‐three‐month) impact of a visit to Conservation Station at Disney's Animal Kingdom on visitors' intended conservation action. The study used a behavior change model from the health arena: the Prochaska Model of Behavioral Change. The model proved helpful but had some drawbacks, suggesting the need to develop a more sensitive change model. The implications of this study could assist institutions in thinking about what audiences or messages to emphasize in order to influence behavior. 相似文献
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The ability of parenting stress to predict observed and reported maternal behaviors was explored. Fifty-eight low income women participated with their 3- to 7-year- old children. Thirty of the women were also currently residing in a shelter for battered women. Mothers completed questionnaires and interviews designed to assess parenting stress, maternal adjustment, and marital relationship. Mothers also completed a computer simulation concerning their responses to 10 typical child behaviors. Mother and child were then observed in a 15-minute observation designed to illicit mild maternal stress. Multiple regression and partial correlation analyses indicated that parenting stress predicts maternal use of positive behaviors such as affection and proaction as well as negative behaviors such as prohibition. Results are discussed in terms of the need to develop a model for understanding the impact of parenting stress on childrearing behavior. 相似文献
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