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201.
Comparison of anthropometry to dual energy X-ray absorptiometry: a new prediction equation for women
The purpose of this study was to assess the accuracy of three recommended anthropometric equations for women and then develop an updated prediction equation using dual energy x-ray absorptiometry (DXA). The percentage of body fat (%BF) by anthropometry was significantly correlated (r = .896-.929; p < .01) with DXA, but each equation underestimated %BF (3.2-5.6 %BF; p < .01). The following DXA criterion (DC) equation was created: %BF= -6.40665 + 0.41946(S3SF) - 0.00126(S3SF)2 + 0.12515(hip) + 0.06473 (age); (S3SF = sum of triceps, suprailiac, thigh; hip = circumference in cm; age = years). The predicted residual sum of squares (PRESS) R2 was high (0.86), and the PRESS standard error of estimate (SEE) was low (2.5 %BF) for our sample of 150 women. The DC equation was further crosschecked on a separate sample of women (n = 25) and again showed excellent agreement. The DC equation appears to be a more accurate estimation of %BF in women. 相似文献
202.
Virtual Solar System Project: Learning Through a Technology-Rich,Inquiry-Based,Participatory Learning Environment 总被引:3,自引:2,他引:1
203.
Charles Haynes Ed.D. Pamela Hook Ph.D. Paul Macaruso Ph.D. Etsuko Muta M.Ed. Yoichi Hayashi M.A. Junko Kato M.D. Tokuko Sasaki M.Ed. 《Annals of dyslexia》2000,50(1):213-238
This study compared U.S. and Japanese grade school teachers’ perceptions of the strengths and weaknesses of children in their
classrooms identified as fitting commonly used criteria for a learning disability. U.S. teachers identified 4.0 percent of
their children as meeting the criteria and Japanese teachers identified 1.5 percent. The teachers then rated these children’s
abilities in the areas of listening, speaking, reading/writing, reasoning, mathematics, social, and study skills. Overall,
U.S. and Japanese teachers’ rating patterns were similar on 70 percent of the skills. In most areas where significant differences
were found—listening, speaking, reading/writing and study skills—U.S. teachers rated higher percentages of their children
as “weaker” than Japanese teachers. A noteworthy exception was the area of social skills where Japanese children received
higher percentages of “weak” ratings. U.S. and Japanese teachers also differed in their perceptions of causative factors leading
to their children’s learning difficulties. We discuss the findings in terms of U.S.-Japanese differences in writing systems
and cultural expectations. 相似文献
204.
Maike Tietjens Lisa M. Barnett Dennis Dreiskämper Benjamin Holfelder Till Onno Utesch Natalie Lander 《Journal of sports sciences》2020,38(17):1984-1996
ABSTRACT Previous studies investigating the relationship between motor skill, physical activity and fitness in children have not thoroughly considered the role of self-perception. Therefore, the study aim was to test a theoretical framework, which considered both actual and perceived motor skill as well as actual and perceived fitness. Potential moderating effects of sex and country were considered. Data on motor skill, fitness, as well as self-perception of motor skill and fitness were collected from 145 Australian children and 214 German children (age range 7 to 10 years). For actual motor skill and fitness, mean differences for sex, age and country were found. For perceived motor performance (perceived motor skill and perceived fitness) no mean differences were found for age. Path analyses were performed. The final model showed significant relations between actual performance (object control skill, fitness) and perceived performance (object control skill, fitness). All model paths had low to moderate regression weights with the lowest relationship reported between actual and perceived fitness. Sex and country showed no effects. This integrated approach has led to a better understanding of the relationship between children’s perceived and objective performance, and cultural differences within them. 相似文献
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Lauren Donovan Dacia McCoy Hilary Denune David W. Barnett Janet L. Graden Victoria Carr 《Journal of educational and psychological consultation》2015,25(2-3):252-275
Implementing changes that support a preventative approach in early childhood education (ECE) requires the collaboration of skilled professionals. The present case study describes a change effort to implement multitiered systems of support (MTSS) in early childhood settings that included collaboration of agency personnel, school psychology program faculty and trainees, and ECE faculty. It describes a competency-based training initiative that provides applied experiences in consultation, supervision, and change facilitation for systems change efforts. The implementation of a systems-level approach for promoting positive behavior at three ECE agencies is described, with resulting teacher and child outcomes. Implications for future consultation research, training, and practice are discussed in relation to a consultation training model that provides competency-based field experiences to support change in ECE. 相似文献
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Pamela Oberhuemer 《International Journal of Early Years Education》2015,23(3):303-312
Just over a decade ago, an OECD Starting Strong team reviewed the system of early childhood education and care (ECEC) in Germany. Regarding the staffing of early childhood provision and referring in particular to resistance at the political level to raise the formal qualification level of educators in alignment with European trends, the evaluative report noted in 2004 that the chosen approach may be overlooking the issue of the sustainability. The article explores key discourses and paradigmatic shifts which have shaped early years professionalisation initiatives and workforce developments since this time. One of the most notable changes has been a remarkable growth in the size of the workforce, which has almost doubled over the past eight years. What are the reasons for this fast-paced expansion, and can it be sustained? Have qualification requirements been lowered, and has the composition of the workforce changed? What are current challenges facing the sector? As ECEC provision develops across Europe, other countries face similar issues. Exploring how they are played out in one particular country context may help to stimulate critical analysis in others. 相似文献