منابع مشابه
An audiometric survey of Royal Artillery gun crews following "Operation Corporate".
An Audiometric Survey was carried out on two batteries of 4 Fd Regt RA (n-84) who were exposed to massive levels of impulse noise during "OP CORPORATE". A control group (n-30) was obtained from the remaining battery which did not serve in the Falklands, and it was matched well in age, service and job. They completed a questionnaire, were physically examined and had an audiogram using the MAICO ...
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The recently identified Circinus Galaxy is the nearest (∼ 4 Mpc) Seyfert 2 galaxy known and we now demonstrate to be one of the best laboratories for studying the effects of nuclear activity3 on the surrounding environment. Here we present new imaging Fabry-Perot observations of Circinus which confirm the existence of an ionization cone in this object but also show for the first time a complex ...
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Near{infrared imaging of the Orion Molecular Cloud has revealed that an explosive event occurred in its core within the past 1000 years, ejecting at least a score of dense knots of gas at several 100 km/s.
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ژورنال
عنوان ژورنال: Royal United Services Institution. Journal
سال: 1897
ISSN: 0035-9289
DOI: 10.1080/03071849709416053