منابع مشابه
"Primitive Belief" as to Propagation of Cholera
sioner's Report on the epidemic cholera of 187'2, and he will discern that some of our authorities still hold by this " primitive belief" regarding cholera. The Pall Mall observes that " it is satisfactory to find that the obstinacy of Indian medical men as to their theory of the propagation of cholera, and their primitive belief in its being a mere chance product of climate, not to be warded o...
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Rapid advances in portable computing and communication devices require implementations that must not only be highly energy efficient, but they must also be flexible enough to support a variety of multimedia services and communication capabilities. The required flexibility dictates the use of programmable processors in implementing the increasingly sophisticated digital signal processing algorit...
متن کاملEclipsing binaries as standard candles : HD 23642 and the distance to the Pleiades
We present a reanalysis of the light curves of HD 23642, a detached eclipsing binary star in the Pleiades open cluster, with emphasis on a detailed error analysis. We compare the masses and radii of the two stars to predictions of stellar evolutionary models and find that the metal and helium abundances of the Pleiades are approximately solar. We present a new method for finding distances to ec...
متن کاملthe differential effects of debate and media analysis as relate to enhancing efl learners critical thinking ability and writing performances
critical thinking ability has an important role in education. accordingly, scholars around the world are searching for new ways for teaching and improving students critical thinking ability. in line with the studies in efl contexts supporting the positive relationship between critical thinking and writing performances, this study investigated the differential effects of halverson’s critical thi...
15 صفحه اولInvestigation of the Pleiades cluster ⋆
On the basis of the best available member list and duplicity information, we have studied the radial distribution of 270 stars and multiple systems earlier than K0 in the Pleiades. Five new long period spectroscopic binaries have been identified from the CORAVEL observations. We have found a clear mass segregation between binaries and single stars, which is explained by the greater average mass...
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ژورنال
عنوان ژورنال: Nature
سال: 1881
ISSN: 0028-0836,1476-4687
DOI: 10.1038/025150b0