The use of the progestogen-only pill as a 'pre-coital contraceptive' was tested by in vitro studies of sperm-mucus interaction. The results suggest that a single tablet of levonorgestrel 30 microg, or norethisterone 350 microg, was effective in preventing sperm migration in the cervical mucus about 12 hours later. This suggests that the progestogen-only pill may be effective as a 'morning befor...

Among breast-fed infants in the normal lying-in wards of a maternity hospital a significantly higher incidence of "idiopathic" jaundice was found in infants of mothers who had been receiving the contraceptive pill before the present pregnancy than in the infants whose mothers never had the pill. The pill became widely used in society at about the same time as breast-milk jaundice was first repo...

Abstract About 800,000 t of BOF slag are generated per year during the steel production process by Austrian plants voestalpine. legislative authorities restrict use as recycling construction material in road building to bituminous binder course, which additionally includes a lifetime responsibility producer for possible future contaminants that currently have not been considered. Alternative ro...

The aim of technology is to make products in a large scale for cheaper prices and increased quality. The current technologies have attained a part of it, but the manufacturing technology is at ma cro level. The future lies in manufacturing product right from the molecular level. Research in this direction started way back in eighties. At that time manufacturing at molecular and atomic level was...