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Oliver and Soundararajan have recently discovered an unexpected bias in the distribution of prime numbers. Interestingly, the authors embarked on this research after hearing about a counter-intuitive result obtained upon comparison of two elementary coin tossing experiments. This article describes these experiments and presents both numerical and analytical methods for exploring the source of inspiration for their research. Elaboration of such key motivations or themes provides a way of bringing the excitement of recent mathematical discoveries to the undergraduate classroom. 相似文献
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K. Sri Krishna A. S. Kanagasabapathy 《Indian journal of clinical biochemistry : IJCB》1991,6(1):17-25
Little is known of conditions which influence the stability of urinary enzymes upon storage in the bladder at 37°C. Using
a continuous flow system simulatingin vivo conditions, we studied the influence of the pH of urine on the stability of two renal parenchymal enzymes N—Acetyl—β—D—Glucosaminidase
(2—acetamido—2—deoxy—β—D—glucoside acetamidodeoxy glucohydrolase, NAG, EC 3.2.1.30) and L—Alanine aminopeptidase (Aminopeptidase
N, AAP, EC 3.4.11.2). This continuous flow model that we have described can be employed to study the influence of pH on the
stability of any renal enzyme excreted in urine. We also studied thein vitro effects of varying concentrations of low molecular weight regulatory metabolites such as urea, creatinine and uric acid and
of some drugs excreted in urine, on the assay of these two enzymes. Urinary pH, urea content and some antibiotics seem to
influence measured urinary NAG and AAP activities and we therefore express the need for caution before diagnostic interpretation
of the urinary enzyme activities are made. 相似文献
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The present study evaluated the degree of parental similarity–dissimilarity across parenting dimensions operationalized in terms of: (1) one's own and one's partner's style; (2) meta-emotion belief structures; (3) behavioral strategies in reaction to children's emotions; as well as (4) parental support and responsiveness. The first four dimensions were assessed with independent self-reports from both mothers and fathers and the latter was measured through observed behaviors in a discussion of emotions. Fifty-seven families participated. The mothers (92%) and fathers (90%) of preschool-aged children (mean age 57.5 months, 54% male) were predominantly of Mexican descent. Results revealed significant similarity when comparing mothers’ and fathers’ observed behaviors. Agreement among parents also emerged when comparing minimizing coping reactions to children's emotional displays and self-reported and reports of one's partner's authoritative parenting. Despite evidence of agreement on use of authoritative strategies and similarity on observed behaviors, comparisons of mean levels revealed dissimilarity. The participating mothers reported a greater tendency to employ authoritative strategies and their partners’ ratings of the mothers’ parenting confirmed this perceived difference. In addition, comparisons of mothers’ and fathers’ observed behaviors in interaction with their children suggested that, while mothers and fathers are engaged in similar behaviors, mothers are observed to engage in them more frequently. These results reinforce the need to assess both parents, employing multiple methods, in determining interdependence or their combined and unique contributions to socializing children. 相似文献
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The Relations of Regulation and Negative Emotionality to Indonesian Children''s Social Functioning 总被引:3,自引:0,他引:3
The purpose of this study was to examine the relations of individual differences in regulation and negative emotionality to 127 third-grade Indonesian children's social skills/low externalizing problem behavior, sociometric status, and shyness. Parents and multiple teachers provided information on children's regulation, negative emotionality, and social functioning; peer sociometric information on liking and social behavior was obtained; and children reported on their self-regulation. In general, children's low socially appropriate behavior/ high problem behavior and rejected peer status were related to low dispositional regulation and high negative emotionality (intense emotions and anger), and regulation and negative emotionality (especially teacher rated) sometimes accounted for unique (additive) variance in children's social functioning. Adult-reported shyness was related to low peer nominations of disliked/fights (although shy children were not especially liked), low adult-reported regulation, and (to a lesser degree) low teacher-rated negative emotionality. Findings are compared with work on regulation, negative emotionality, social competence, and shyness in other countries. 相似文献
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International mobility programmes and opportunities have enthusiastically been embraced by universities as part of a growing demand for graduates with global, international and intercultural capital on the part of graduates. In this project, we take two universities, one Australian and one Indonesian, as illustrative case studies of some of the commonalities, differences and, in particular, imbalances, with regard to the conduct of international professional experience in the global north and south. Specifically, a recent visit by Indonesian pre-service teachers was used to inform an upcoming visit by Australian pre-service teachers to Indonesia. We used this opportunity to compare the accessibility of travel for Australian and Indonesian pre-service teachers, as illustrations of in/equality of access for northern and southern learners. We hope that this paper will prompt discussion about global imbalances of opportunity with regard to international experiences. We also hope that our mutual interview process adopted for this study might be a useful research tool. 相似文献
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Cahyadi Ani Hendryadi Widyastuti Sri Suryani 《Education and Information Technologies》2022,27(2):2165-2179
Education and Information Technologies - The global crisis caused by the COVID-19 pandemic has challenged educational institutions worldwide to rapidly shift to an online mode of teaching. In this... 相似文献
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Aqilah Nawwarah H.A. Rajak Dk. Nurul Najiah Pg Abu Bakar Nur Dina Azyyati Lajim Nurul Hikmatull Su’aidah Haji Kamarulzaman Siti Nur Fakhrinah Haji Karim Mohammad Nabil Almunawar 《Education and Information Technologies》2018,23(6):2341-2361
This research studies on the e-learning services acceptance in higher education institutions in Brunei Darussalam. This research has seven hypotheses, relating to independent, intermediary, and dependent variables. The independent variables include lecturer’s characteristics, design of learning contents, teaching materials, and playfulness; while the intermediary variables are perceived benefits and perceived ease of use. On the other hand, the dependent variable in this research is the intention to use e-learning. Multiple regression analysis were conducted to test the hypotheses proposed. Data analysis from this research has confirmed that the lecturer’s characteristics, teaching materials, perceived ease of use and the intention to use e-learning corresponds to the perceived benefits. Meanwhile, the design of learning content and the intention to use e-learning are positively related to the perceived ease of use and lastly, the variable playfulness is positively related to the intention to use e-learning. 相似文献