биомеханика позвоночник

Внутриматочные means of contraception by the first ancient arabs, having placed in a uterus верблюдицы have thought up a flat stone and having warned thus conception. The idea has received development in Japan and China, there into a uterus of the woman entered silver or gold balls. Подробнее...

The sacrament of occurrence of a new life in an organism of the woman was always surrounded by a mystical aura. Not understanding the processes resulting{bringing} by a birth of the child, the mankind for a long time aspired to affect result somehow. Were ordered both the fact of occurrence or absence of the child, and his{its} other qualities (a floor, talents, appearance, career). For help in this delicate process stars were involved, under which there should be a conception or a birth, the certain sacred subjects (recollect shirts which king and queen in novel Дюма should put on), grasses, spirits and spirits. However not always and not at all pairs in itself conception was the blessing. The control over birth rate was necessary already in a primitive society. That is why contraception if to understand all substances and the methods resulting{bringing} in absence of sorts as such, vividly as this term interested mankinds hardly probable not from the moment of occurrence of articulate speech. Подробнее...