Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Matthew Severns"'
Autor:
Gantira Natadisastra, Jean Humphrey, Liliana Clement, David S. Friedman, Alfred Sommer, Lee Shu Fune Wu, Matthew Severns, Nathan Congdon
Publikováno v:
The American Journal of Clinical Nutrition. 61:1076-1082
A prototype scotopic sensitivity machine was used to evaluate pupillary and visual thresholds for 295 Indonesian children aged 1-5 y, most of whom were initially vitamin A-deficient. Subjects were tested 6 and 9 mo after receiving a high dose of vita
Autor:
Robert Massof, Donald O’Shea, Thomas Raasch, Peter Clark, Carmina Londono, Matthew Severns, Arthur Ferg, Arthur Gilmore, Peter Lalle, Leigh Abts
Publikováno v:
Ophthalmic and Visual Optics.
An estimated 3 million people in the U.S. suffer severe visual impairments that cannot be corrected medically, surgically, or with conventional eyeglasses. People with this type of visual impairment are described as having "low vision", because in mo
Autor:
Matthew Severns
Publikováno v:
Documenta Ophthalmologica; Feb2009, Vol. 118 Issue 1, p29-36, 8p
Publikováno v:
Physiology & Behavior. 34:843-845
A simple circuit to detect avian vocalizations is described. Adjustments of five different controls (frequency, bandwidth, amplitude, duration and spacing) allow the circuit to accurately detect the vocalizations of different ages and species of bird
Autor:
Bruce Drum, Matthew Severns, David O'Leary, Robert Massof, Michael Breton, Harry Quigley, Theodore Krupin
Publikováno v:
Noninvasive Assessment of The Visual System.
For the last several years,1,2we have been developing a new type of perimetry based on pattern discrimination instead of light detection. The test requires the patient to detect a patch of nonrandom dots (the "pattern") embedded in a surrounding fiel