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1.
Many introductory biochemistry students have problems understanding metabolism and acquiring the skills necessary to study
metabolic pathways. In this paper we suggest that this may be largely due to the use of a traditional teaching approach which
emphasises memorisation rather than understanding. We present an alternative approach to teaching carbohydrate metabolism
which is designed to promote understanding of pathways. The approach also enables regular monitoring of, and reflection on,
student progress and the identification of student reasoning and conceptual difficulties through the use of specially designed
problems. Preliminary results are presented giving examples of specific student difficulties and the extent to which they
were addressed by the alternative instructional approach. A qualitative evaluation of the approach is also presented.
Specializations: metal accumulating plants biochemical education.
Specializations: physics education, conceptual development, instructional design, improvement of tertiary science education. 相似文献
2.
Stephen F. Burns David R. Broom Masashi Miyashita Claire Mundy 《Journal of sports sciences》2013,31(6):635-642
Abstract Ghrelin is a hormone that stimulates hunger. Intense exercise has been shown to temporarily suppress hunger after exercise. In the present study, we investigated whether post-exercise hunger suppression is mediated by reduced plasma total ghrelin concentrations. Nine men and nine women participated in the study. Their mean physical characteristics were as follows: age 24.8 (s x = 0.9) years, body mass index 22.9 (s x = 0.6) kg · m?2, maximal oxygen uptake ([Vdot]O2max) 57.7 (s x = 2.2) ml · kg?1 · min?1. The participants completed two 3-h trials (exercise and control) on separate days in a randomized balanced design after overnight fasts. The exercise trial involved a 1-h treadmill run at 73.5% of [Vdot]O2max followed by 2 h of rest. The control trial consisted of 3 h of rest. Blood samples were collected at 0, 0.5, 1, 1.5, 2, and 3 h. Total ghrelin concentrations were determined from plasma. Hunger was assessed following blood sampling using a 15-point scale. The data were analysed using repeated-measures analysis of variance. Hunger scores were lower in the exercise trial than in the control trial (trial, P = 0.009; time, P < 0.001; trial × time, P < 0.001). Plasma total ghrelin concentrations did not differ between trials. These findings indicate that treadmill running suppresses hunger but this effect is not mediated by changes in plasma total ghrelin concentration. 相似文献
3.
MS. Christine Chin DRS. Ngoh-Khang Goh Lian-Sai Chia Kam-Wah Lucille Lee DR. Kay-Cheng Soh 《Research in Science Education》1994,24(1):41-50
The use of problem-solving in science instruction implies a change in the teacher's role from dispensing content information
to encouraging critical reflective thinking in the student. For problem-solving to become an integral part of the science
curriculum, teachers must make it the focus of their instruction. This study investigated the extent to which pre-service
primary teachers used the problem-solving approach in their science instruction. It also identified the factors affecting
their efforts to teach science using this approach. The issues considered are important in whether problem-solving becomes
part of the science curriculum, as teaching behaviour influences student learning outcomes.
Specializations: science eeducation
Specializations: educational measurement, research methodology. 相似文献
4.
Ghrelin is a hormone that stimulates hunger. Intense exercise has been shown to temporarily suppress hunger after exercise. In the present study, we investigated whether post-exercise hunger suppression is mediated by reduced plasma total ghrelin concentrations. Nine men and nine women participated in the study. Their mean physical characteristics were as follows: age 24.8 (s(x) = 0.9) years, body mass index 22.9 (s(x) = 0.6) kg x m(-2), maximal oxygen uptake (VO(2max)) 57.7 (s(x) = 2.2) ml x kg(-1) x min(-1). The participants completed two 3-h trials (exercise and control) on separate days in a randomized balanced design after overnight fasts. The exercise trial involved a 1-h treadmill run at 73.5% of VO(2max) followed by 2 h of rest. The control trial consisted of 3 h of rest. Blood samples were collected at 0, 0.5, 1, 1.5, 2, and 3 h. Total ghrelin concentrations were determined from plasma. Hunger was assessed following blood sampling using a 15-point scale. The data were analysed using repeated-measures analysis of variance. Hunger scores were lower in the exercise trial than in the control trial (trial, P = 0.009; time, P < 0.001; trial x time, P < 0.001). Plasma total ghrelin concentrations did not differ between trials. These findings indicate that treadmill running suppresses hunger but this effect is not mediated by changes in plasma total ghrelin concentration. 相似文献
5.
DR REBBI MUSTAFA ALIAN Associate Professor in Library Science 《International Information and Library Review》1998,30(4):289-301
The main objective of this research paper is to introduce the concept of medical libraries, and to survey the present status of medical libraries in the State of Bahrain in terms of their history, collections, staff, and services. The study gives a general background about the State of Bahrain and its libraries. It also discusses the main problems facing medical libraries in Bahrain. Finally, the study gives some recommendations for developing medical libraries in Bahrain. Personal interviews and documents were used for collecting the information. 相似文献
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9.
Catherine A. Broom 《课程研究杂志》2016,48(5):711-727
This paper explores the interrelations between power, politics, academia and curriculum reform in British Columbia (BC) using social studies curriculum documents as a case study. It describes how curriculum reform occurred and argues that reform was undemocratic as it was largely the product of individuals with power who invited individuals with educational ideologies that were attractive to them to aid them in the revisions. These educational ideologies came from the USA, illustrating the influence of US ideas overseas. The non-democratic nature of the curriculum reform process may partly explain why teachers often resisted the revisions, and why government officials attempted to appear more democratic by increasing teacher participation in the curriculum revision process later in the century. However, curriculum revision remained undemocratic. The paper comments on whether the curriculum revision process in a democracy ought to be democratic or not. 相似文献
10.
DR. Paul Gardner 《Research in Science Education》1992,22(1):140-148
The notion that technology is the application of science to the making of artefacts is a widely-held, persistent and influential
view. Considerable scholarly work has been done during the past quarter century to refute it on the grounds that it is historically
and ontologically inaccurate. It is a view which fails to recognise the contribution of non-scientific factors to technological
development,which neglects the reverse contribution of technology to science, and which offers a superficial account of the
process of application. This paper focusses on this last point, and argues that in those cases where science is applied to
technology, the application process is usually exceedingly complex. The process involves the selection of appropriate knowledge,
the adoption of differing criteria and the translation and re-shaping of knowledge to make it amenable to the technologist.
The issue has important implications for the school curriculum.
Specializations: science/technology education, technology teacher education, educational evaluation. 相似文献