Problems of drug abuse, HIV and AIDS: the burden of care in one general practice.

Responsibility for many of the problems of intravenous drug abuse and human immunodeficiency virus (HIV) infection lies with community care agencies, such as general practitioners, community psychiatric and district nurses and drug agencies. It is in general practice that this burden is most clearly observed, given that general practitioners are in charge of the day-to-day care of patients. In an attempt to quantify this workload in an inner city practice with 11,200 patients, data were gathered from several sources relating to drug use and HIV infection.

Effect of uv exposure on optical properties of amorphous as(2)s(3) thin films.

Systematic studies of the refractive index, extinction coefficient, and optical band gap have been made of as grown and UV-exposed amorphous films of As(2)S(3) grown by thermal evaporation from resistive source. The refractive index and extinction coefficient have been found to change with different UV exposure duration. No noticeable change was observed in the optical band gap with UV exposure.