منابع مشابه
The drifting human genome.
COMMENTARY. For the article ‘‘The drifting human genome,’’ by Jianzhi Zhang, which appeared in issue 51, December 18, 2007, of Proc Natl Acad Sci USA (104:20147–20148; first published December 10, 2007; 10.1073 pnas.0710524105), the authors note that, due to a printer’s error, the DOI appeared incorrectly. The DOI 10.1073/pnas.0710524105 should have appeared as 10.1073/ pnas.0710524104. The onl...
متن کاملidentification and discovery of novel micrornas in the human genome
although more than 98% of the human genome is transcribed, most of these transcripts are not translated into proteins. rather, they are considered as non-coding rnas. micrornas (mirnas) are very short non-coding rnas approximately 22 nucleotides in length which regulate many key processes of cells such as growth, proliferation, differentiation, cell cycle, apoptosis (programmed cell death) and ...
متن کاملThe Polarization of Drifting Subpulses
Using new techniques based on the polarimetric fluctuation spectrum, the fluctuation behaviour of the polarization of individual pulses is examined in three pulsars that show drifting subpulses, allowing various aspects of the fluctuations to be quantified for the first time. Of the three pulsars studied, only PSR B0809+74 shows behaviour completely consistent with the superposition of orthogon...
متن کامل[Human nutrition in prolonged autonomous crossings over drifting ice].
The authors describe the experience gained with nutrition for participants of ski transitions over drifting ice of the Arctic, organized by the newspaper "Komsomolskaya Pravda" in 1972, 1976 and 1979, including a 76-day transition towards the North Pole. Use was made of dehydrated products with a daily diet mass of 800-3300 g per man, in which fat content was 40-45% of total caloricity, and tha...
متن کاملDrifting and Tunneling
The drill & blast method is still the most typical method for medium to hard rock conditions. It can be applied to a wide range of rock conditions. Some of its features include versatile equipment, fast start-up and relatively low capital cost tied to the equipment. On the other hand, the cyclic nature of the drill & blast method requires good work site organization. Blast vibrations and noise ...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2007
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0710524104