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...

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...

Urea kinetics were measured using prime/intermittent oral doses of [15N15N]urea, on five separate protocols in thirteen normal young women. Each woman underwent either two or three study protocols. Measurements were made at day 12 and day 22 of the menstrual cycle, whilst consuming their habitual protein intake in seven women not taking the contraceptive pill and in six women taking the contrac...

CONTEXT Parents are encouraged to be the primary sex educators for their children; however, little is known about the accuracy of parents' views about condoms and oral contraceptives. METHODS Telephone surveys using validated measures provided data on beliefs about the effectiveness, safety and usability of condoms and the pill among 1,069 parents of 13-17-year-olds in Minnesota and Wisconsin...