排序方式： 共有10条查询结果，搜索用时 34 毫秒
1
1.
2.
3.
Tympanic membrane (TM) temperature asymmetry has been proposed as a phenotypic marker of vulnerability to negative emotionality in children. Little is known about the stability of TM temperatures or how readily one can obtain a reliable index of the phenotype. TM temperatures were collected from 3- to 5-year-old children ( N =73) over 5 months ( Mdn= 34 samples). Seven to 10 samples needed to be aggregated to achieve reliable measures (αs>.70). Using reliable estimates, TM asymmetry remained stable over time, r (72)=.72, p< .01; 70% of the children had warmer left TMs; and TM asymmetry correlated as predicted with measures of children's emotionality. TM asymmetry may be a phenotypic marker of vulnerability to negative emotionality, but measures obtained on one occasion may not reliably index the phenotype. 相似文献
4.
Espen Stranger-Johannessen Bonny Norton 《Journal of Language, Identity & Education》2019,18(6):400-411
ABSTRACTResearch has found that reading achievement is strongly associated with opportunities for children to engage actively with print. This article addresses research on a digital initiative called the African Storybook, which provides a website with over 1,000 openly licensed children’s picture storybooks in more than 150 African languages, as well as the official languages of English, French, and Portuguese (africanstorybook.org). The article draws on a 2014 study conducted in Uganda that sought to examine the extent to which teachers and children were invested in the African Storybook stories. Of central interest in this article is the extent to which teachers sought to encourage young children to engage actively with the African Storybook stories. The findings suggest that use of the stories promoted greater ownership of meaning for the young readers, as well as shifts of identity for both students and teachers. 相似文献
5.
6.
Naoko Sagawa Bonny Rockette-Wagner Koichiro Azuma Hirotsugu Ueshima Takashi Hisamatsu Tomoko Takamiya Aiman El-Saed Katsuyuki Miura Andrea Kriska Akira Sekikawa 《运动与健康科学(英文)》2020,9(2):170-178
Background:Metabolic syndrome(MetS) is a global health problem.Physical activity(PA) is a known modifiable risk factor for MetS and individual MetS components.However,the role of PA could differ between sub-populations due to differences in the variability of PA and other MetS risk factors.To examine these differences,multi-country studies with standardized outcome measurement methods across cohorts are needed.Methods:Cross-sectional PA levels(total and domain specific) in healthy middle-aged(44-56 years) men in the Risk Factor Assessment among Japanese and U.S.Men in the Post-World War Ⅱ Birth Cohort(ERA-JUMP) Study(n=730;American:n=417;Japanese:n=313;from population-representative samples in Pittsburgh,Pennsylvania,USA,and Kusatsu,Shiga,Japan) were compared.The relationships between PA levels and MetS(overall and specific components) in/across the American and Japanese sub-cohorts(adjusting for age,smoking,and alcohol consumption)were also assessed using the same instruments(pedometer and validated questionnaire) to measure PA in both cohorts.Results:A total of 510 individuals provided complete data on PA(American:n=265;Japanese:n=245).The American cohort had significantly lower mean±SD steps/day(7878±3399 steps/day) vs.the Japanese cohort(9055±3797 steps/day)(p <0.001) but had significantly higher self-reported moderate-vigorous leisure PA(American:15.9(7.4-30.3) metabolic task equivalent hours per week(MET-b/week) vs.Japanese:4.0(0-11.3) METh/week,p <0.0001).In both sub-cohorts,each 1000 steps/day increase was associated with lower odds of having MetS(American:OR=0.90,95%CI:0.83-0.98;Japanese:OR=0.87,95%CI:0.79-0.95) and the individual MetS component of high waist circumference(American:OR=0.86,95%CI:0.79-0.94;Japanese:OR=0.87,95%CI:0.80-0.95).In the American cohort only,higher self-reported leisure PA(Met-b/week) was associated with lower odds of MetS and high waist circumference(OR=0.98,95%CI:0.97-0.99 for MetS and waist circumference,respectively).Conclusion:Higher total step counts/day had an important protective effect on MetS prevalence in both the Japanese and American cohorts,despite differences in PA levels and other MetS risk factors.The effect of steps/day(across all intensity levels) was much greater than domainspecific moderate-vigorous PA captured by questionnaire,suggesting the need for measurement tools that can best capture total movement when examining the effects of PA on MetS development. 相似文献
7.
This study examined salivary cortisol, a stress-sensitive hypothalamic-pituitary-adrenocortical (HPA) axis hormone in 20 infants (12 females; M age = 10.8 months) and 35 toddlers (20 females; M age = 29.7 months) in full-day, center-based child care. Samples were taken at approximately 10:00 a.m. and 4:00 p.m. at child care and at home. At child care, 35% of infants and 71% of toddlers showed a rise in cortisol across the day; at home, 71% of infants and 64% of toddlers showed decreases. Toddlers who played more with peers exhibited lower cortisol. Controlling age, teacher-reported social fearfulness predicted higher afternoon cortisol and larger cortisol increases across the day at child care. This phenomenon may indicate context-specific activation of the HPA axis early in life. 相似文献
8.
Elizabeth Marquis Bonny Jung Ann Fudge Schormans Sara Lukmanji Robert Wilton Susan Baptiste 《International Journal for Academic Development》2016,21(4):337-349
In light of the growing population of students with disabilities at colleges and universities worldwide, faculty development connected to accessible teaching is of paramount importance. Drawing from the existing literature and from the results of a qualitative study of educational accessibility at one Canadian university, this article offers a series of recommendations for academic developers hoping to establish effective development initiatives focused on accessible teaching and learning. Key issues considered include the need to support instructors in translating principles of inclusive teaching into practice, the value of discussion-based approaches that take up difficult questions about minimum standards, and the question of whether development initiatives should be discipline-specific or interdisciplinary, mandatory or optional. Recommendations for further research are also discussed. 相似文献
9.
Bonny Bhunia R. S. Alli M. V. R. Reddy B. C. Harinath 《Indian journal of clinical biochemistry : IJCB》1999,14(2):143-148
Brugia malayi microfilarial excretory-secretory (mf ES) antigens obtained byin vitro maintenance of mf are important tools in the immunodiagnosis of bancroftian filariasis. To increase the yield of mf ES products,
the effect of nutritional supplements on the culture medium (RPMI 1640) and the maintenance temperature were studied. Supplementation
of RPMI 1640 medium with organic acids and sugars of Grace's insect culture medium forin vitro maintenance of 10 lakhs of mf in 40 ml medium increased the yield of mf ES antigen from 152 μg to 364 μg of mean protein,
content and the mean antigen titre from 200 to 400. Supplementation with phenyl methyl sulphonyl fluoride (PMSF) and shift
in the culture temperature resulted in a further increase in the yield of mf ES antigen to 502 μg of mean total protein with
an antigen titre of 800. The modification resulted in a net increase of 3 fold in the protein content and 4 fold in the antigen
titre of ES products. The above modifications in thein vitro maintenance of mf did not affect the diagnostic quality of mf ES antigen, which gave a sensitivity and specificity of 80%
and 90% respectively in detection of filarial IgG antibodies inWuchereria bancrofti infected cases. 相似文献
10.
Three studies examined the role of stereotype threat in boys' academic underachievement. Study 1 (children aged 4–10, n = 238) showed that girls from age 4 years and boys from age 7 years believed, and thought adults believed, that boys are academically inferior to girls. Study 2 manipulated stereotype threat, informing children aged 7–8 years (n = 162) that boys tend to do worse than girls at school. This manipulation hindered boys' performance on a reading, writing, and math test, but did not affect girls' performance. Study 3 counteracted stereotype threat, informing children aged 6–9 years (n = 184) that boys and girls were expected to perform similarly. This improved the performance of boys and did not affect that of girls. 相似文献
1