We present a two-dimensional (2D) generalization of the stabilized Kuramoto-Sivashinsky system, based on the Kadomtsev-Petviashvili (KP) equation including dissipation of the generic [Newell-Whitehead-Segel (NWS)] type and gain. The system directly applies to the description of gravity-capillary waves on the surface of a liquid layer flowing down an inclined plane, with a surfactant diffusing a...

Dowling Degos disease is a rare condition inherited as autosomal dominant trait characterized by numerous, asymptomatic, symmetrical, progressive, small, round-pigmented macules over axillae and groins, face, neck, arms and trunk, scattered comedo-like lesions (dark dot follicles) and pitted acneiform scars. Histopathology is diagnostic. We are hereby reporting three cases of Dowling Degos dise...

Department of Dermatology, Korea University, Ansan Hospital College of Medicine, Korea University, 516 Gojandong, Ansan-si Kyeonggi-do 425-707, Korea Salicylic acid (SA) has recently been used in higher concentrations as a superficial chemical peeling agent. The author evaluated the efficacy and safety of SA peels as a treatment of acne vulgaris in Asian people. The results prove that this peel...

Background: Microneedling has been shown to be a clinically effective and safe treatment for comedonal acne vulgaris. The aim of the present study was to compare the clinical effectof microneedling and the most commonly used topical drug, tretinoin, in the treatment of comedonal acne.Methods: Patients with comedonal acne (n = 82) were randomized to receive topical tretinoin (n = 41)...

introduction: adequate control of acne is difficult, regardless of the various conventional modalities. intense pulsed light (ipl) system is one of the emerging options that are become increasingly useful. methods: to achieve the best ipl parameters we evaluated the efficacy and tolerability of ipl at 752-nm wavelength, 35 j/cm2 fluence, 55-ms pulse duration in comparison with 572-nm wavelength...

UNLABELLED Acne surgery is the use of various surgical procedures for the treatment of postacne scarring and also, as adjuvant treatment for active acne. Surgery is indicated both in active acne and post-acne scars. PHYSICIANS' QUALIFICATIONS: Any Dermatologist can perform most acne surgery techniques as these are usually taught during postgraduation. However, certain techniques such as dermabr...

Homotopy theory deals with spaces of large but finite dimension. Chromatic homotopy theory is an organizing principle which is highly developed in the stable situation. 1. The Spanier-Whitehead category. We'll work with the category of finite polyhedra (or finite CW complexes) and homotopy classes of continuous maps between them. We will always fix a basepoint in all spaces, and assume that map...