OBJECTIVE The objective of this retrospective study was to evaluate the efficacy of the authors' combination therapy protocol for keloid treatment. DESIGN Retrospective. SETTING Plastic surgery office-based outpatient setting in New York City. PATIENTS Forty patients with 44 keloid scars requiring surgical excision. INTERVENTIONS Keloid scars were treated using surgical excision, platel...

In experiments preliminary to the design of an X-ray-excited optical luminescence (XEOL)-based chemical mapping tool we have used X-ray micro (4.5 × 5.2 μm) and macro (1 × 6 mm) beams with similar total fluxes to assess the effects of a high flux density beam of X-rays at energies close to an absorption edge on inorganic surfaces in air. The near surface composition of corroded cupreous alloys ...

soil samples were collected from seven sites in and around the metropolitan area of mexicocity. the locations were chosen as possible sources of fugitive dusts which contribute to suspended particulate matter in the atmosphere of mexico city. x-ray fluorescence (xrf) was used to determine the concentrations of several major elements (si, k, ca, ti, mn, and fe), as well as of other trace element...