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.
Keyword: 

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.
Keyword: 

Judul: Katalis Zink Ferit Tersubstitusi Cu untuk Oksidasi Benzil Alkohol
Abstrak: Katalis berperan dalam menurunkan energi aktivasi. Katalis ZnFe2O4 dan ZnFe2O4 tersubstitusi Cu disintesis menggunakan metode kopresipitasi untuk digunakan dalam oksidasi benzil alkohol. Katalis dicirikan dengan spektrofotometer inframerah (FTIR) dan difraktometer sinar-X. Spektrum FTIR menunjukkan puncak serapan dari ikatan Zn-O dan Fe-O masing-masing pada rentang 559‒575 cm-1 dan 419‒447 cm-1. Difraktogram menunjukkan terbentuknya fase tunggal Zn0.6Cu0.4Fe2O4 pada katalis ZnFe2O4 tersubstitusi Cu 20%. Benzil alkohol dioksidasi dengan sistem refluks. Konversi benzil alkohol meningkat dengan meningkatnya suhu. Kadar benzaldehida yang dihasilkan dengan katalis ZnFe2O4 tersubstitusi Cu 20% lebih tinggi dibandingkan dengan katalis ZnFe2O4 yang tidak tersubstitusi dan yang tersubstitusi Cu 60 dan 80%. Hal tersebut menunjukkan bahwa katalis ZnFe2O4 tersubstitusi Cu 20% memiliki kinerja yang lebih baik dalam oksidasi benzil alkohol menjadi benzaldehida dengan kadar benzaldehida 8.763%.
Keyword: Benzil alkohol, katalis, oksidasi, ZnFe2O4