منابع مشابه
The Effect of Teaching History of Physics on Student-Teachers’ Understanding of the Process of Model Construction in Physics
To improve student teachers’ understanding of the process of model construction in Physics, it was hypothesized that teaching the history of Physics may be of help. To test this hypothesis, two groups of senior year female student-teachers in Teaching of Physics at one of the campuses of Farhangian University in Tehran were chosen: One group had passed a course on the history of Physics, while ...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Rationing conscience
Decisions about allocation of limited healthcare resources are frequently controversial. These decisions are usually based on careful analysis of medical, scientific and health economic evidence. Yet, decisions are also necessarily based on value judgements. There may be differing views among health professionals about how to allocate resources or how to evaluate existing evidence. In specific ...
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ژورنال
عنوان ژورنال: Nature
سال: 2002
ISSN: 0028-0836
DOI: 10.1038/420607a