Geological evidence of a palynologically defined cooling in southeastern Canada at 10 000-8000 14C yr BP
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منابع مشابه
Recommended High-Frequency Audiometric Threshold Levels (8000-18 000 Hz)
The normal range of auditory sensitivity for pure-tone signals (8000 to 18 000 Hz) has been well bracketed in laboratory studies, generally with experienced listeners. This study reports results obtained during a field survey of high-frequency hearing conducted with 237 subjects at the 1968 Denver ASHA Convention. These results agree quite closely with data from the laboratory studies. The purp...
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ژورنال
عنوان ژورنال: Essai
سال: 2010
ISSN: 1492-143X,0705-7199
DOI: 10.7202/038994ar