BACKGROUND In recent years, particularly in developed countries, women have tended to delay childbirth until over 40 years of age. Our study aims to identify whether the donor's age or recipient's age influences the pregnancy and live birth rate following oocyte recipient cycles. METHODS A population study included 3889 fresh oocyte recipient cycles. Pregnancy and live delivery rates were com...

<b><i>Introduction:</i></b> The objective of this study was to explore different approaches communicating the positive predictive value (PPV) cell-free DNA screening for fetal trisomy. <b><i>Methods:</i></b> PPV established 4 maternal age-groups (<30, 30–34, 35–39, and >39 years) from clinical laboratory data compared modeled an ...

data type, 23 algorithm, 18 correctness of, 34 decorated, 35 method of, 34 name of, 34 parameters of, 34 specification of, 34 terminates, 39 time complexity of, 49 valid, 36 valid for a process, 35 worst-case expected time complexity of, 50 worst-case time complexity of, 50 ArrayMax, 48–50 assertions, 32 base case, 9 binary relation, 4, 8 reflexive closure of, 8 transitive closure of, 8 BinaryS...

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Nitrogen use efficiency and life cycle of root nodules in alfalfa after different mineral fertilization and soil cultivation practices were studied. Field trial was conducted in the Institute of Forage Crops, Pleven, Bulgaria on leached chernozem subsoil type and no irrigation. The next treatments were tested: i) for fertilization as follows: N0P0K0 (control); N60P100K80 (an accepted technology...

BACKGROUND British women are increasingly delaying childbirth. The proportion giving birth over the age of 35 rose from 12% in 1996 to 20% in 2006. Women over this age are at a higher risk of perinatal death, and antepartum stillbirth accounts for 61% of all such deaths. Women over 40 years old have a similar stillbirth risk at 39 weeks as women who are between 25 and 29 years old have at 41 we...