منابع مشابه
Anecdotal Accounts of Science
point, these fields have not completely merged. For ex-fer into technologies that are impacting everyday life. Notwithstanding recent difficulties in the technology ample, we don't fully understand how the effects of sector, science and technology are recognized as major various chromatin-modifying activities on the transcrip-economic engines, distinguishing the national haves tional machinery ...
متن کاملAstrophysics.
Using the oscillation frequencies of α Cen A recently discovered by Bouchy & Carrier (2001, 2002), the available astrometric, photometric and spectroscopic data, we tried to improve the calibration of the visual binary system α Cen. With the revisited masses of Pour-baix et al. (2002) we do not succeed to obtain a solution satisfying all the seismic observational constraints. Relaxing the const...
متن کاملAnecdotal , Historical and Critical Commentaries on Genetics
S OMEWHERE in Latin America a single P-element copy found its way into the genome of Drosophila melanogaster from another insect species. Once there, these transposable elements made use of their new hosts’ DNA repair mechanism to increase their copy number while transposing to new genomic positions. Within the span of a few decades they spread worldwide to encompass nearly the entire species. ...
متن کاملASTROPHYSICS The NASA Astrophysics Data System : Overview
The NASA Astrophysics Data System Abstract Service has become a key component of astronomical research. It provides bibliographic information daily, or near daily, to a majority of astronomical researchers worldwide. We describe the history of the development of the system and its current status. Urania (Boyce 1996), and the ADS role in the emerging electronic astronomical data environment are ...
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ژورنال
عنوان ژورنال: Nature
سال: 1980
ISSN: 0028-0836,1476-4687
DOI: 10.1038/286312a0