Judul: Estimation model of birthweight based on waist circumference
Abstrak: Nutritional status of pregnant women can be measured by anthropometry which is simple and non expensive. Waist circumference of pregnant women (WCP) may reflects uterus dan fetus growth. The objective of this study is to develop an estimation model of birthweight based on WCP during the third trimester. For this purpose 250 pregnant women were selected from six health centers and five midwife clinics of Tanah Sareal, Bogor. Body height and weight, waist and hip circumferences, mid-upper arm circumference, fundal height were measured on 28th, 32nd , and 36th week of gestation. Body weight prior to pregnancy, history of pregnancy and birth, symptoms and diseases, and food consumption was collected through an interview. The results show the two most appropriate estimation models of birthweight are based on WCP (R2=28.58%) and body weight (R2=28.27%) on 28 week of gestation, with the equations are : birthweight = 166.4(WCP)3 - 977.6(WCP)2 + 1914.7(WCP) - 1246.6 and birthweight = 14.7(body weight)3 - 79.4(body weight)2 + 143.1(body weight) - 82.5. This implies that the WCP and body weight can be used as a simple predictor of birthweight and of fetus growth.
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Judul: Analysis of gestational weight gain of pregnant women by maternal socioeconomic and nutritional status and its relationship with weight of the newborn infants, the fetal weight and length of birth
Abstrak: The aims of the study are determining the prevalence of intra uterine growth retardation (IUGR) and low birth weight (LBW) infant among different social economic status (low SE and high SE) and maternal nutritional status-MNS (high risk, normal, overweight and obesity), and analyzing the effects of gestational weight gain (GWG) on the weight of the newborn infants. This study applied a prospective study design of 638 pregnant women aged 20-35 years, from of the selected health centers and maternal hospitals in urban areas of East Jakarta and Bekasi. Data collected include socioeconomic of family, anthropometric measurements, maternal nutrition knowledge (MNK). he relationship between variables were analyzed using Pearson Correlation test. The effects of gestational age, nutritional and socio-economic status on fetal growth were analyzed by a multiple linear regression.
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Judul: Sintesis kompleks salen Cu/Ni sebagai katalis oksidasi gliserol
Abstrak: Biodiesel sebagai salah satu alternatif pengganti minyak bumi telah menghasilkan produk samping berupa gliserol kasar. Salah satu cara pemanfaatan adalah dengan mengoksidasinya menjadi dihidroksiaseton menggunakan kompleks senyawa salen yang telah dihidrogenasi dengan logam atom pusat Cu dan Ni. Katalis yang dihasilkan dicirikan menggunakan spektrofotometer inframerah transformasi Fourier dan spektrofotometer serapan atom. Kinerja kedua katalis dalam mengoksidasi gliserol telah dibandingkan dengan baik dalam penelitian ini. Oksidasi gliserol dilakukan dengan tambahan katalis sebanyak 5 mol% gliserol dalam campuran gliserol-asetonitril. Reaksi dilakukan dengan melewatkan gas oksigen selama 4 jam pada suhu ruang dalam campuran tersebut. Hasil oksidasi dianalisis menggunakan kromatografi cair kinerja tinggi. Puncak kromatogram dari hasil oksidasi yang muncul setelah menit ke-9 menunjukkan terjadinya perubahan gliserol. Produk oksidasi gliserol diduga memiliki gugus fungsi keton karena nilai Rf-nya lebih besar daripada gliserol, yang menandakan senyawa tersebut lebih nonpolar daripada gliserol. Kromatogram yang diperoleh menunjukkan bahwa aktivitas katalis Cu(salen) mengoksidasi gliserol lebih baik ditinjau dari rendemen produk yang dihasilkan dibandingkan dengan Ni(salen). Oksidasi baik dengan Cu(salen) maupun Ni(salen) menghasilkan satu produk oksidasi.
Keyword: Katalis, Ligan salen, Biodiesel