Acta Medica 3 2012 2647.indd
نویسنده
چکیده
latitude gradients and secular trends in europe and north america have been found in the male-female ratio at birth (M/f: male births divided by total births) which is expected to be 0.515. annual national data for Czechoslovakia and the post-Czechoslovakian (Czech Republic and slovakia) countries for male and female live births were obtained from the world health organisation and analysed with contingency tables. this study analysed 13,123,538 live births. An overall decreasing trend in M/F was found (p < 00001). No latitude gradient was noted. There was an overall deficit of 15,232 male births based on an M/f of 0.515. M/f is declining in this region, despite well developing economies that have resisted the worldwide slowdown. an interplay of several poorly understood factors is likely.
منابع مشابه
Acta Medica 3 2012 2647.indd
the aim of our study was to determine the effect of selected cytostatics on a human ovarian cancer cell line a2780 as a model system for ovarian cancer treatment. this cell line is considered cisplatin-sensitive. Panel of tested cytostatics included cisplatin, paclitaxel, carboplatin, gemcitabine, topotecan and etoposide. these cytostatics have a different mechanism of action. to evaluate cytot...
متن کاملActa Medica 4/12 2802.indd
Unilateral otosclerosis combined with avascular necrosis of stapes crura is a rare entity. it should be considered in a case of high grade otosclerosis. Symptoms are the same as in patients who suffer from common otosclerosis. Patients complain on progressive hearing loss and tinnitus. The diagnosis is made clinically by conventional audiologic evaluation and radiologically by x-ray mastoid Sch...
متن کامل