The Hawaiian Volcano Observatory, on Hawaiiâs Big Island, has been monitoring volcanoes since 1912ânearly four decades before Hawaii became a state. Today itâs considered one of the worldâs leading observatories. Yet thereâs little coordination between even the best observatories in the United States.
An asterisk (*; from Late Latin asteriscus, from Ancient Greek á¼ÏÏÎµÏÎ¯ÏÎºÎ¿Ï, asteriskos, little star) is a typographical symbol or glyph. It is so called because it resembles a conventional image of a star.
Asterixis is a recurrent momentary lapse of sustained posture that presents as a rhythmical movement classified under the rubric of negative myoclonus. It is a common manifestation of a variety of structural, metabolic, and toxic conditions affecting the nervous system.edications and toxins can also produce asterixis. The most common are sedatives such as benzodiazepines and barbiturates, and anticonvulsants such as phenytoin, carbamazapine, valproic acid, and gabapentin. Phenytoin is the most prominently reported antiepileptic culprit.