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581.
Generalisation is inescapable. We all generalise. It is part of our cognitive apparatus and it is fundamental to the way we live. Our understanding of the world has to go beyond our own unique and limited experiences if we are to interact, empathise, understand and communicate with others in our social milieu. Without generalisation we could not interact with our world in a meaningful and coherent way – that is to say, we would need continual repetition of the same mental procedures for each new experience.  相似文献   
582.
The current study examined the diagnostic decision‐making of school psychologists as a function of a student's disability and academic performance with three research questions using a randomly‐selected sample of school psychologists from the state of Texas. Results from the first research question indicated that school psychologists significantly differentiated between what diagnoses were considered most correct according to the DSM‐IV and what diagnoses would be in a child's best interest at school. Results from the second research question indicated that this differentiation in diagnostic decision‐making was present as significantly associated with academic performance. Results from the third and final research question indicated that school psychologists differed in their diagnostic decision‐making according to their perceptions about the particular disability.  相似文献   
583.
Abstract

This paper presents a secondary analysis of data from a survey of teachers in the Jewish schools of three communities. Previous findings had shown that only 19% of teachers have professional training in both Jewish content areas and in the field of education, and despite incomplete professional backgrounds, little professional growth was required of teachers. What can be done to enhance and expand professional growth activities for teachers in Jewish schools? Analyses reported in this paper examine three possible “levers” for changing standards for professional growth: state licensing requirements for pre‐schools, state requirements for continuing education among professionally‐trained teachers, and community incentives for training of supplementary school teachers. Results indicate that pre‐school teachers in state‐licensed pre‐schools and supplementary school teachers who were paid for meeting a professional growth standard reported that they were required to attend more in‐service workshops, compared to other teachers who were not subject to these conditions. In addition, standards for the quantity of in‐service were higher among teachers who have stronger Judaic backgrounds and who are committed to a career in Jewish education.  相似文献   
584.
We present a microfluidic platform able to trap single GUVs in parallel. GUVs are used as model membranes across many fields of biophysics including lipid rafts, membrane fusion, and nanotubes. While their creation is relatively facile, handling and addressing single vesicles remains challenging. The PDMS microchip used herein contains 60 chambers, each with posts able to passively capture single GUVs without compromising their integrity. The design allows for circular valves to be lowered from the channel ceiling to isolate the vesicles from rest of the channel network. GUVs containing calcein were trapped and by rapidly opening the valves, the membrane pore protein α-hemolysin (αHL) was introduced to the membrane. Confocal microscopy revealed the kinetics of the small molecule efflux for different protein concentrations. This microfluidic approach greatly improves the number of experiments possible and can be applied to a wide range of biophysical applications.  相似文献   
585.
This essay explores the complex struggles over the reinvention of mountaineering practices and ethics during the postwar period in the Rocky Mountains of Canada between competing interest groups of disparate climbers. Specifically, we focus on the increased challenges to the hegemony of the Alpine Club of Canada (ACC) by a wave of young, working-class emigrants, who contentiously broadened the limits and operative goals/meanings of the sport in the range. In doing so, this paper examines the controversy that erupted within the climbing community over first ascent of Brussels Peak in 1948, followed by a discussion of the arrival of renowned climber Hans Gmoser (1932–2006), whose early activities in the Rockies' eastern front irrevocably challenged local tradition and the hegemony of the ACC.  相似文献   
586.
Abstract

The purpose of this study was to validate and cross-validate the Beunen-Malina-Freitas method for non-invasive prediction of adult height in girls. A sample of 420 girls aged 10–15 years from the Madeira Growth Study were measured at yearly intervals and then 8 years later. Anthropometric dimensions (lengths, breadths, circumferences, and skinfolds) were measured; skeletal age was assessed using the Tanner-Whitehouse 3 method and menarcheal status (present or absent) was recorded. Adult height was measured and predicted using stepwise, forward, and maximum R 2 regression techniques. Multiple correlations, mean differences, standard errors of prediction, and error boundaries were calculated. A sample of the Leuven Longitudinal Twin Study was used to cross-validate the regressions. Age-specific coefficients of determination (R 2) between predicted and measured adult height varied between 0.57 and 0.96, while standard errors of prediction varied between 1.1 and 3.9 cm. The cross-validation confirmed the validity of the Beunen-Malina-Freitas method in girls aged 12–15 years, but at lower ages the cross-validation was less consistent. We conclude that the Beunen-Malina-Freitas method is valid for the prediction of adult height in girls aged 12–15 years. It is applicable to European populations or populations of European ancestry.  相似文献   
587.
It has long been assumed that graphic organizers (GOs) should be presented to students following text as an organizer, rather than preceding text as an overview. Robinson et al. (Educational Technology Research & Development, 51(4), 25?C41, 2003) challenged this assumption by finding support for GOs as an overview. The present study further examined this issue by having 111 undergraduates view three GOs before (overview) or after (organizer) reading or listening to a narration of a 3,400-word text, followed by measures of retention and transfer. Students who received GOs as organizers transferred knowledge better than those who received GOs as overviews. Whether GOs should also be used as overviews, as prescribed by Robinson et al., is unclear and in need of further investigation.  相似文献   
588.
Studies have shown increasing Internet use for health information and service facilities. After consulting a convenience sample of new mothers, this study applied select terms and phrases to a widely accepted search engine and investigated its potential for providing resources for new mothers. Results of this quantitative content analysis showed that only four of the 13 phrases used in the search generated 50% or more websites containing content relevant to new mothers. Findings indicate that informational support by way of electronic fact sheets is available using the Google search engine. However, functional support (e.g., social networks, consultation phone details, and mother–infant activities) configured limited data resources using the Google search engine. In addition, because websites can be difficult to navigate, users’ technical proficiency needs to be taken into consideration as well as the sites’ up-to-date information. With Internet technology rapidly expanding, perinatal educators and other perinatal health-care professionals need to be informed about current online resources to help direct consumers to useful online resources and mitigate the often overwhelming and confusing information.  相似文献   
589.
In this paper, we analyze 2 lessons by 1 teacher that took place during a lesson study (LS) cycle for a team of elementary mathematics teachers. We analyze the data on 2 levels: macro-level analysis, dealing with lesson structure and setting; and micro-level analysis, zooming in on mathematical tasks and the quality of whole-class discussion. We analyze teacher participation in LS to identify the main mechanisms leading to changes in teaching observed between the 2 lessons. We argue that collaborative noticing, collaborative awareness, and brainstorming are the core mechanisms of teacher change in the course of LS.  相似文献   
590.
This study examined the relationship among sex, body mass index, motor skill competence (MSC), perceived physical competence (PPC), and school-day physical activity in preschool students (N = 34). Physical activity was assessed by steps accumulated during the school day, while MSC and PPC were assessed with the Test of Gross Motor Development-2nd edition (Ulrich, 2000) and the Pictorial Scale of Perceived Competence and Social Acceptance (Harter & Pike, 1984). Regression analyses revealed that preschool students' locomotor ability accounted for 21 % (p = .007) of the variance associated with school-day physical activity. The findings support an association between participants' ability to locomote and be physically active. The findings warrant future investigations to examine the relationship between locomotor skills and physical activity behaviors.  相似文献   
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