COMET

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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 ?
As the New Year opened, there were reports of the comet's dust tail stretching across 40[degrees] of sky, but the head had faded so much that it could hardly be seen with the unaided eye.
The changing appearances of Comet Lovejoy's brilliant, sweeping dust tail and slender, straight gas tail are evident in this daily sequence obtained by the Heliospheric Imager on the STEREO A spacecraft between December 16th and 19th as the comet moved away from the Sun.
Both featured dust tails with long delicate streaks, known as striae, extending from the nucleus.
Observers under rural skies reported that the broad dust tail was fairly easy to see, extending perhaps 2[degrees], but the thin, blue ion tail proved to be much more elusive.
I believe that the ion tail reached at least 5[degrees] in binoculars and the dust tail was about 4[degrees] at one point.
Each of the 10 parts have comet-like dust tails, and the biggest four chunks are each double the size of a football field.
Most meteor showers originate from comets composed of ice emitting millions of kilometres of dust tails.
He covers dynamics, physical aspects, spectra, spectra of coma, gas production rates in coma, dust tails, light scattering theory, the nature of dust particles, ion tails, nucleus, origin, and relations to other solar system studies.
It's also spouting geysers of gas, and its twin gas and dust tails stretch for some 30 million miles.
Imaging the fainter ones can present an interesting challenge; they require much longer exposures to reveal any streaming ion or dust tails, which leads to more complex issues when assembling your image.
As well as flaunting two dust tails, it sported a ghostly bluish-white stream of charged particles, extending a third of the way across the sky (SN: 6/1/96, p.
Whipple proposed that cometary interiors contain ice embedded with dust; his model was the first to successfully account for both the gas tails and the dust tails associated with comets.