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Frequency and Cost of Actinic Keratosis Treatment
Dermatologic Surgery, 2006Actinic keratosis (AK) is a common lesion with its highest incidence in the aged population. Although treatment strategies for AK have continued to develop, the cost of such treatments has not been recently investigated.The purpose of this article is to determine the frequency of visits for AK, the methods used to treat AK, and the cost of the ...
Lindsey, Warino +5 more
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Appointment frequency versus treatment time
American Journal of Orthodontics and Dentofacial Orthopedics, 1988A study is presented of 92 orthodontic patients whose treatment was completed between the years 1985 and 1987. Because of the unique situation in the clinic in which the study was undertaken, patients are seen at long intervals as compared to what normally would be considered the "standard" length of time between appointments.
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Geometrical-optical Treatment of Frequency Response
Proceedings of the Physical Society. Section B, 1957An expression is obtained for the frequency response of an optical system according to the approximation of geometrical optics. The difficulties inherent in the explicit calculation of ray densities in the image are avoided. The method is applied to defect of focus, astigmatism and aberration tolerances, and the results compared with those obtained ...
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A Frequency-domain Treatment of Partial Coherence
Optica Acta: International Journal of Optics, 1977The phenomenon of partial coherence is treated in the frequency domain, rather than in the time domain. The starting-point of the description in the frequency domain is the set of mutual and auto power spectra of N signals, arranged in the form of an N N Hermitian matrix.
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The Treatment of Migraine with Variable Frequency Photo‐Stimulation
Headache: The Journal of Head and Face Pain, 1989SYNOPSIS Variable Frequency Photo‐stimulation (VFP) goggles are a form of portable stroboscope, using red Light Emitting Diodes to alternately illuminate the right and left eyes, with the eyelids closed, at a rate of 0.5 to 50Hz. VFP goggles were used in the treatment of 7 patients with migraine headache.
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Mid-infrared frequency comb based on a quantum cascade laser
Nature, 2012Gustavo Villares +2 more
exaly