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Abstract This study was designed to determine if the skinfold measurements on an exercised arm would decrease as a result of regular weight training with that arm. Thirty-two subjects completed three sets of 7-RM curls and three sets of 7-RM triceps extensions on either a daily or an alternate day schedule for a period of 6 weeks. The nonexercised arm was measured to establish the specificity of the spot reduction on the exercised arm. The results indicate that hard exercise in a specific area of the arm will result in a reduction of the subcutaneous adipose tissue in that area. 相似文献
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In this theoretical article, we aim at theorizing the old statement that mathematics teachers might profit from studying the history of mathematics. We do this by drawing upon the theoretical framework of mathematical knowledge for teaching (MKT). A selection of international studies on the history and pedagogy of mathematics is used as starting points for discussing how the different domains of teachers’ MKT—to a larger or smaller degree—can profit from the history of mathematics. 相似文献
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Arne Friemuth Petersen 《Scandinavian Journal of Educational Research》2013,57(3-4):267-278
Debates about the crisis of school teaching in the Western world have focused more on education as a state of the art and on psychological problems of either teachers or pupils than on situational features which are of importance for teaching and learning situations. In applying K. R. Popper's propensity theory and his idea of situational logic, a preliminary analysis of problem situations is attempted with the aim of identifying biopsychological situational elements in children's preschool life‐conditions that could be simulated at school in their first years thereby enabling them to draw upon already acquired knowledge and skills. Two principal ways of acquiring experience — one instructive, the other selective — are described and discussed in relation to learning, exploration and play. It is argued that, while selection procedures are found in exploration, play and the like, instruction procedures are most often used in teaching situations despite growing evidence that instruction learning is less motivating than learning by action and selection, as various experiences with situational teaching indicate. 相似文献
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Our main concern was to investigate the implementation of the new Education Act, giving adults the statutory right to complete upper secondary education. Referring to a ‘top‐down’ and a ‘bottom‐up’ perspective we have investigated how the representatives of the county authorities (the bureaucrats) interpret and practise the specific section of the Act in relation to their definition, moral evaluation and economic view. The interpretation of the section in the Act and the practice varied. Two counties were proactive, result‐oriented and generous, while four counties were passive, act‐oriented and restrictive in their implementation. The implementation was influenced by the bureaucrats’ attitudes, decisions and actions. They had their own agenda, moral standard, interest and so on, which influenced their interpretation and practice. Our study indicates that it is not enough just to formulate a right. How it is formulated, and how it is interpreted and perceived may affect the implementation process. 相似文献
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Arne Schirrmacher 《Science & Education》2012,21(3):381-401
While science education and popularization by means of print media developed in quite similar forms in many nations, the advent
of radio resulted in initiatives to bring science on the air that were rather heterogeneous from country to country. The German
case stands out with respect to quantity, variety and ambition, and also for its special mechanism of planning and controlling
educational programs on science and technology. Hence it is argued that a closer look at how the chances of the new medium
were discussed and implemented in Weimar Germany can provide a scale of reference for the development of science communication
on the radio in other countries. For this reason a brief summary of the the respective developments in the United States and
Europe is presented, before discussing in some detail Germany’s particular institutional organization, program structures,
combination of radio broadcasts and print material into a kind of multimedia, and various formats and genres. 相似文献
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Hessenbruch A 《Endeavour》2002,26(4):137-141
The identity of x-rays was initially mysterious, their connotations including morbidity and the otherworldly. Gradually they became routine, finding a place in the high-energy end of the electromagnetic spectrum. Radiologists established a niche in hospitals, contributing to the industrialization of healthcare. Control of x-ray tube output was improved while an infrastructure enforcing radiation protection accompanied the continued growth of the field. X-ray diffraction proved a powerful tool with which to examine substances at the atomic scale. Since 1950, x-ray researchers have taken advantage of synchrotrons’ copious production of continuous x-ray spectra, and the marriage of x-rays with electronics has led to a cornucopia of cheap and highly efficient analytical tools. 相似文献