The toughness of a graph is the graph’s vulnerability to having vertices removed. For example, if vertices of the graph represent homes, and the edge of the graph represent telephone lines connecting them, then the toughness measures how badly telephone communication can broken down by relatively few lightening strikes. In this paper the maximum networks are obtained with prescribed order and t...

A haemoperfusion column containing activated charcoal coated with cellulose acetate was used to treat 7 patients with barbiturate or ethchlorvynol poisoning. Six of the patients showed marked lightening of coma and all showed a significant fall in plasma drug concentration. Plasma drug clearance and platelet loss were similar to those reported for other coated charcoal columns. Cellulose acetat...

Mercury is considered one of the most toxic elements for plants and animals. Nevertheless, in the Middle East, Asia and Latin America, whitening creams containing mercury are being manufactured and purchased, despite their obvious health risks. Due to the mass distribution of these products, this can be considered a global public health issue. In Mexico, these products are widely available in p...

Allergic contact dermatitis caused by phenylethyl resorcinol, a skin-lightening agent contained in a sunscreen María-Antonia Pastor-Nieto1, Paloma Sánchez-Pedreño2, Teresa Martínez-Menchón2, Virginia Melgar-Molero1, Francisco Alcántara-Nicolás1 and Pablo de la Cruz-Murie3 1Dermatology Department, University Hospital of Guadalajara, 19002 Guadalajara, Spain, 2Dermatology Department, University C...