Alternative fuels scrutinised.

In the last few years, healthcare engineering professionals in the U.K. have started to consider seriously how to reduce carbon emissions by replacing, or supplementing, fossil fuels with biofuels.

Equipment life cycle costs minimised.

With the cost of energy now a major component of building operating costs, NHS Trust managers increasingly focus on estimating total life cycle costs of equipment such as boiler room and heat, steam and incineration plant. "Life cycle costing" is a broad term and encompasses a wide range of techniques that take into account both initial and future costs as well as the savings of an investment over a period of time.

Effect of cessation of drug misuse on the immune status of HIV-infected injecting drug users.

The effects of cessation of i.v. drug use on CD4 lymphocyte count and serum levels of beta2 -microglobulin (beta2 m) and soluble interleukin-2 receptor (sIL-2R) were prospectively investigated in 41 HIV-positive drug users enrolled in a methadone treatment programme.

[The effect of discontinuing intravenous opiate injections and methadone treatment on the status of the immune system in narcotic abusers with HIV].

The effect of discontinuation of injecting drug use and administration of methadone was investigated in 43 HIV-infected drug abusers. In 20 (46.5%) out to them an improvement in the immune status as measured by CD4+ lymphocyte percentage and CD4/CD8 lymphocyte ratio was observed, while remaining 23 persons (53.