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Cardiology Carvedilol or Metoprolol European Trial. A trial comparing carvedilol and immediate release metoprolol tartrate on clinical outcome in patients with moderate to severe heart failure
Conclusion Cardiovascular deaths occurred in 29% of carvedilol patients and in 35% of metoprolol patients
ENT Combined microscopic & endoscopic technique. An alternative to the technically demanding endoscopic sinus surgery for chronic sinus diseases, a technique which allows less experienced operators to manage these diseases with fewer complications
References in periodicals archive ?
nuclear diameter: 1-40 km (Halley:16 x 8 x 7 km) nuclear mass: 1014-1019g (Halley: 1017-1018g) nuclear mass loss per apparition: ~1 % coma radius: 104-105 km hydrogen cloud radius: 107 km dust tail length: 106-107 km dust tail particle size: 0.
But some comets, like Hale-Bopp, also have a dust tail Because this trail of rock and dust reflects lots of sunlight, dust tails are highly visible.
Bailey said: "There's no evidence that the comet has broken up, but in the Soho images, you see the curved dust tail and rather straighter gas tail.
Analysis of the data showed that this exoplanet, which orbits its host star every 16 hours, has a massive dust tail originating from its surface, similar to a comet's tail.
The Hubble images, taken from January to May 2010 with the telescope's Wide Field Camera 3, reveal a point-like object about 400 feet wide, with a long, flowing dust tail behind a never-before-seen X pattern.