Educação matemática pela arte
Gusmão, Lucimar Donizete
2013-08-28
Search results
24 records were found.
The aims of the presente study were: a) To know the pharmacokinetic behaviour of OTC in serum after its intravenous and intramuscular administration to calves. b) To calculate bioavialability of a long acting OTC preparation administered intramusculary to calves. c) To know the pharacokinetic behaviour of OTC in bovine tissues after its intramuscular administration. d) To calculate withdrawal times for OTC in differents bovine tissues after its intramuscular administration. Experimental animals were 20 normal female Hereford calves. In a first experience six of them received 20 mg/kg of OTC intravenously. In conclusion, OTC demostrated to be a slow release pharmaceutical with high bioavailability, and capacity for acceding to the majority of tissues, maintaining concentration higher than MIC for at lest 72 hours after the drug administ...
Comment: 11 pages, 1 figure, ApJ Letters, in press (vol 677)
Comment: 11 figures, accepted in Astronomical Journal (April 2003), needs
AASTEX package
Based on CO (2-1) observations obtained with the Swedish-ESO Submillimeter Telescope, the distribution of molecular material associated with the Wolf-Rayet ring nebula NGC 2359 has been determined. The angular resolution is 22", and the velocity resolution is 0.33 km s-1. Three molecular components are detected in the direction of the nebula. The bulk of the molecular gas is observed at 54 km s-1 and follows the southeastern border of the nebula.
We present a multiwavelength study of several star forming regions in the LMC and SMC. Broad and narrowband IR imaging in conjunction with cold molecular emission of CO lines and mid IR imaging by ISO are providing us the data to define the massive star content and formation processes in low metallicity environments (1/3 to 1/10 solar) for comparison with Galactic star forming regions. Our multiwavelength studies show a clear correlation between the 2.12 μm H2, the 6.7 μm AIBs, and 230 GHz CO(2-1) emission as predicted by PDR models towards N66 in the SMC and 30 Doradus in the LMC. We have found IR embedded sources toward the peaks of the CO emission detected toward both HII regions. We find that the molecular gas that has not yet been photo dissociated by the UV radiation field of the O stars is in hot, dense clumps with very small fi...
Carbon monoxide (CO) is the primary tracer for interstellar clouds where stars form, but it has never been detected in galaxies in which the oxygen abundance relative to hydrogen is less than 20 per cent of that of the Sun, even though such ‘low-metallicity’ galaxies often form stars. This raises the question of whether stars can form in dense gas without molecules, cooling to the required near-zero temperatures by atomic transitions and dust radiation rather than by molecular line emission; and it highlights uncertainties about star formation in the early Universe, when the metallicity was generally low. Here we report the detection of CO in two regions of a local dwarf irregular galaxy, WLM, where the metallicity is 13 per cent of the solar value. We use new submillimetre observations and archival far-infrared observations to estimat...
Comment: 4 pages, 3 figures. Accepted for publication in the 54th Bulletin of
the Argentine Astronomical Society (BAAA 54)
Comment: 11 pages, 8 figures. Accepted for publication in A&A
Comment: Paper presented in the Workshop "Young massive star clusters: initial
conditions and environments" (Granada, Spain - Sept 2007). Astrophysics &
Space Science in press, 7 pages, 4 figures
