نتایج جستجو برای: history of science
تعداد نتایج: 21221646 فیلتر نتایج به سال:
Compared to centuries of physics and millennia of mathematics, the 50-year-history of computer science and information management research makes us the toddlers of the scientific community. Yet during our brief existence, we’ve revolutionized the world and, not content with that, gone on to build and study virtual worlds. We have justly taken pride in our accomplishments, and developed our own ...
penetrate. I looked for the usual introduction on "How to use this book", and did not find it, until page 39. Equally, it takes a little searching to find out why a large section of the listed material is not actually reproduced in the book, but is on the microfiche. Finally, the coverage of countries is heavily towards Britain and North America, although this is only explained in one of the es...
George Sarton is, in many ways, a twentieth century example of the Renaissance ideal of the "universal man." In our age of specialization it is almost impossible to attach a conventional label to Dr. Sarton. He is a scientist who received the degree of doctor of science in mathematics from the University of Ghent; he is a novelist (La chaine d'or, 1909, written under the pseudonym of Dominique ...
the present article on the ancient science of medicine, studies on one hand the emergence of this science and on the other hand its development and compilation. the article also researches the development of medicine in islam, muslim medics and islamic universities in which this science has been taught. finally the article discusses the history of medicine after the emergence of islam in iran.
Historians of science have participated actively in debates over American science policy in the post-World War II period in a variety of ways, but their impact has been more to elucidate general concepts than to effect specific policy changes. Personal experiences, in the case of the debate over global warming, have demonstrated both the value and the limits of such involvement for the making o...
with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...
there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
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