This article reports a case of oral mucosa lesions as the sole manifestation in Langerhans cell histiocytosis (LCH). This is a very uncommon manifestation of LCH since this disease preferably affects the bones with frequent involvement of the jaws. LCH may also involve other organs, particularly the lungs, liver, lymph nodes, and skin. The highlights of this report are the differential diagnosi...

The temporal interval between flashing lights that is required to perceive nonsimultaneity decreases as the refractive error increases from 0 to +2 diopters. The interval then remains constant with further increases to 3 and 4 diopters. The results are discussed in terms of the relative increase of transient to sustained visual channels and of the increase in apparent movement.

At Extreme 2003 a “late breaking” presentation by members of the UIUC/GSLIS Electronic Publishing Research group argued that XML Documents could not be assigned to either of the two plausible FRBR entity classes, manifestation or expression, since XML Documents appear to both have and lack some characteristics of each class. A “double aspect” theory was proposed where a single XML Document can ...

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objectives this study aimed to evaluate the efficacy of afcl in improvement of hand photoaging in 25 patients. patients and methods a prospective, before- after, single blind study was conducted in 25 patients who presented for desired treatment of hand photoaging. patients received three treatments sessions with afcl. results all enrolled patients were female and received three treatment sessi...