Background: Fetal macrosomia is usually distressing to obstetricians and neonatologists. In the current study, involved mothers had poor social and medical circumstances, as they were migrated forcefully within the country borders due to war, from their original homeland to safer camps which had miserable situations. Objectives: To study rate, risk factors, and complications of macrosomia in people with low socio-economic living conditions and missed medical follow up. Methods: All internally displaced pregnant women who gave birth to neonates weighed ≥4000 g were involved in the study. All required history, examination, care, and investigations were practiced by the attending obstetrician and neonatologist. Cases of normal birth weight neonates from the same sample of internally moved mothers were considered as controls. Results: Fetal macrosomia rate was 15.77% (143 out of 907). Observed significant macrosomia risk factors were maternal age ≥30 years, multiparity, body mass index ≥30, previous or family history of macrosomia, gestational age >40 weeks, cesarean section, diabetes, and hypertension. Meconium- stained liquor, shoulder dystocia, uterine atony, and genital trauma, were major maternal complications, while main neonatal sequelae were Apgar score (>7) at first minute, birth asphyxia, admission to NICU, hypoglycemia, polycythemia, and respiratory distress. Conclusion: Higher rate and more frequently encountered risk factors of macrosomia than national and international figures found in our sample (of forcefully moved mothers) were probably related to poor living circumstances, and absence of regular medical follow up with antenatal care.
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Mass transfer has been studied at rotating cylinder electrodes fabricated with spiral-wound woven-wire meshes using reduction of copper as a test reaction. The experimental data were correlated by an empirical expression between the Sherwood number and the Reynolds number, both regarding the hydraulic diameter as a characteristic length. It was found that the Sherwood number was dependent upon the Reynolds number to the power of 0.521. An enhancement factor was adopted to compare the efficiency of the new rotating cylinder electrode with previous three-dimensional rotating cylinder electrodes. The results showed that the new type has a mass-transfer enhancement factor 2.3 times higher than those obtained with smooth rotating cylinder electr
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Rapid worldwide urbanization and drastic population growth have increased the demand for new road construction, which will cause a substantial amount of natural resources such as aggregates to be consumed. The use of recycled concrete aggregate could be one of the possible ways to offset the aggregate shortage problem and reduce environmental pollution. This paper reports an experimental study of unbound granular material using recycled concrete aggregate for pavement subbase construction. Five percentages of recycled concrete aggregate obtained from two different sources with an originally designed compressive strength of 20–30 MPa as well as 31–40 MPa at three particle size levels, i.e., coarse, fine, and extra fine, were test
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