Results 181 to 190 of about 4,817 (215)
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Piezoelectric stapedotomy: the importance of a micropulse program
Acta Oto-Laryngologica, 2010We can consider the micropulse program as the best level of safety that should be used in all cases of piezoelectric stapedotomy.The aim of this study was to describe the importance of a micropulse program in determining the success of piezoelectric stapedotomy.A total of 112 patients (group A) affected by primary otosclerosis underwent piezoelectric ...
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Micropulsation activity at Lerwick
Journal of Atmospheric and Terrestrial Physics, 1968Abstract A handscaled analysis of micropulsation activity at Lerwick Observatory has been carried out which shows some agreement with previous handscaled work using different equipment. Day and nighttime activity are confirmed to occupy essentially different period ranges, and a correlation of Pi activity with acceptable auroral zone current models ...
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Micropulsation Measurements in California and Alaska
Nature, 1959IN recent years there has been increased interest in micropulsations of the Earth's magnetic field1–4. As a part of a study of the micropulsations with periods of 10–30 sec., stations were established near Borrego, California (33° 21.5′ N., 116° 17′ W.), and near College, Alaska (64° 42′ N., 148° 29.5′ W.). Horizontal coil antennas of 2-m. diameter and
W. H. CAMPBELL, B. NEBEL
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Micropulsations and the Diagnostics of the Magnetosphere
1970Experimental and theoretical research indicates that short-period geomagnetic micropulsations are a sensitive indirect means of determining changes in the state of the upper atmosphere. L.R. O. Storey (1953) found that the space between the outer boundary of the magnetic field and the ionosphere is filled with plasma so that any disturbance reaching ...
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Subthreshold and micropulse diode laser photocoagulation
Seminars in Ophthalmology, 2003Retinal laser photocoagulation is a proven, effective treatment for various retinal disorders. Common clinical protocols use intra-operatively visible endpoints that cause iatrogenic chorioretinal damage. For this reason, laser therapy is normally limited to levels of disease severity for which the benefit-to-risk ratio justifies its application.
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Journal of Atmospheric and Terrestrial Physics, 1964
J.A. Jacobs, T. Watanabe
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J.A. Jacobs, T. Watanabe
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The Morphology of Geomagnetic Micropulsations
1970Geomagnetic micropulsations are fluctuations of the Earth’s magnetic field whose amplitudes range from a fraction of a gamma to, on rare occasions, as much as a few tens of gammas. Periods range from about 0.1 sec to 10 min. Most work has been done in the lower frequency end of this range, very little being known at the higher frequencies from 3 to 10 ...
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