Making Glass Specula by Hand 1
نویسندگان
چکیده
منابع مشابه
Newly Designed Specula for Laryngomicroscopy
We produced specula for laryngomicroscopy to observe blind spots in the operating field. Use of these specula has facilitated detailed observation of the lower surface of the false vocal folds, laryngeal ventricle, and subglottis, which were previously in blind spots. The specula are useful in the following ways: 1) clarifying blind spots for improved diagnosis and providing more accurate surgi...
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Was stone tool making a factor in the evolution of human hand morphology? Is it possible to find evidence in fossil hominin hands for this capability? These questions are being addressed with increasingly sophisticated studies that are testing two hypotheses; (i) that humans have unique patterns of grip and hand movement capabilities compatible with effective stone tool making and use of the to...
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ژورنال
عنوان ژورنال: Nature
سال: 1888
ISSN: 0028-0836,1476-4687
DOI: 10.1038/037382b0