Hygienic regulation of harmful chemicals absorbed by skin]

Data of toxicants uptake through the skin are generalized. Equivations for the acceptable levels of skin pollutants to calculate are worked up. The classification of the danger of chemicals for skin uptake is given.     

A photometric method of analysis of cyanides]

The contributors propose a selective photometric technique for detection of sodium and potassium cyanides in different washings, sewage, overalls extraction. The technique was based on the formation of a polymetyne dye, and barbituric acid and pyridine reactions. It proved efficient in detecting the cyanides within 0.01-0.054 mg/dm3, 1-100 mg/l, 0.08-1.24 mg/dm3 with deviations not exceeding 23%. Duration of the test was limited to 25-30 min.     

Second Thoughts on Living Wills

Advance directives such as living wills are attractive in that they give us a sense of control over our futures. But they also tend to obscure conflicts between a patient's competent wishes and later, incompetent interests. They allow caregivers to avoid evaluating quality of life in assessing the best interests of incompetent patients.