Conclusion: Although postterm pregnancies were less likely to be associated with obstetrical risk factors and complications such as fertility treatments, diabetes mellitus, hypertensive disorders, IUGR and PROM, postterm is an independent risk factor for perinatal mortality.”
“BACKGROUND: The production of biodiesel from activated sludge obtained from
Tuscaloosa, AL was optimized based on the yield of fatty acid methyl esters (FAMEs) using an in situ transesterification process. An orthogonal central composite response Anlotinib cell line surface design was considered to investigate the main and interaction effects of temperature, methanol to sludge ratio, and catalyst concentration.
RESULTS: The biodiesel yield can be satisfactorily described by the quadratic response surface model with R(2) of 0.836 and a statistically not significant lack of fit (p = 0.254). Coded regression coefficients, main effect plots
and surface plots indicated that maximum biodiesel yield may be obtained at 75 degrees C, 30 mL g(-1) (methanol/sludge) and 10% volume (catalyst concentration). Numerical optimization showed that at this reaction condition, a biodiesel yield of 3.78% (weight) can be obtained. Experimental verification gave Mocetinostat a biodiesel yield of 3.93 +/- 0.15% (weight) giving a model error of 7.35%. This indicates high reliability of the model.
CONCLUSIONS: The economic analysis showed that the in situ transesterification of wet activated sludge (84.5% weight moisture)
is less economical than the in situ transesterification of dried sludge (5% weight moisture). However, sensitivity analysis indicated that the process can be made more economical by reduction of water to 50% (weight). At this level of moisture, a biodiesel break-even price of around $7.00 per gallon is attainable, which is still more expensive than petroleum-based diesel (similar to-$2.95 per gallon). For the biodiesel from activated sludge to be economically competitive, a biodiesel yield of at least 10% (weight) is necessary. (C) 2010 Society of Chemical Industry”
“Background: Maternal obesity is a frequent obstetric risk factor, linked with short- and long-term consequences PD0325901 cost for mother and child, including foetal overgrowth, growth restriction and stillbirth. The mechanisms underlying these pathologies remain unknown but likely involve the placenta.
Aims: To study placental cell turnover in relation to maternal body mass index (BMI).
Methods: Term placental villous tissue was randomly sampled from 24 pregnancies, with a range of maternal BMI of 19.5-49.6. Immunohistochemistry was performed for human chorionic gonadotropin, Ki67 and M30 and image analysis used to calculate syncytiotrophoblast area and proliferative and apoptotic indices. Results were compared categorically between women of BMI 18.5-24.9 (normal), BMI 30.0-39.9 (obese classes 1 and 2) and BMI 40+ (obese class 3) and continuously against BMI; p<0.