Judul: Analisis faktor-faktor yang mempengaruhi kegemukan pada anak usia 6-14 tahun di Sumatera Selatan:
Abstrak: Indonesia is a developing country, had two nutrition problems,i.e. under nutrition and over nutrition. Overweight in childhood would be a risk factor for degenerative diseases, such as vascular diseases, hypertension and hyperlipidemia in adulthood; discrimination from their peer group; negative body image; depression; and unable to manage social interactions. Based on Riskesdas. 2007, prevalence of overweight of 6-14 years-old children in Indonesia was, 9.5% for males and 6.4% for females. In South Sumatera, the prevalence of overweight and obesity of children aged 6-14 years old was 16 % in males and 11 % in females. The Objective of research is to analyze influencing factors associated with overweight in 6-14 year-old children in South Sumatera. Design of the research was the crossed - sectional. Nutritional status, as independent variable was measured with weight for height. Dependent variables consist of sex, age, father education, status of father occupation, family income, number of family member, eating fruits habit, eating vegetable habit, eating fatty food habit, eating sweetfood habit, energy and protein intake, physical activity, and father’s BMI as independent variables. Data were analysis by SPSS. The results show that prevalence of overweight was 12.7%. There were significant correlation among sex, age, physical activity, eating fruits habit, eating fatty food habit, energy intake, protein intake and father’s BMI with overweight (p<0.05). Determinant factor of overweight the most was physical activity (OR = 1.491).
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Judul: Analisis faktor yang berhubungan dengan berat bayi lahir dan pengaruhnya terhadap status gizi anak Usia 6 - 11 bulan di Sumatera:
Abstrak: More than 20 million infants worldwide, representing 16% of all births, are born with low birth weight, 90% of them are in developing countries. Basedon the results of Riskesdas 2007 the prevalence of Low Birth Weight (LBW) in Indonesia was 11,5%. Low birth weight infants generally have slow growth and development. The condition may get worse if they lack energy and nutrient intake, get improper rearing pattern and often suffer from infection. In the long run LBW infants tend to have poor nutrition status and malnutrition. The aim of this study was to analyze factors related to birth weight and their effects on 6 - 11 months old infants nutritional status. This study used Riskesdas data, 2007. The datas collected by surveys method, located in 10 provinces in Sumatra with a total sample of 1.749 households that have 6 - 11 months old infants. The results showed prevalence of low birth weight was 4,7% and nutrition problems in infants of 6 – 11 months were severe under nutrition 4,8%, severe wasting 16% and severe stunting 18,8%. Childrens born with low birthweight are more likely to undernutrition, wasting and stunting compare to children born with normal weight. Factors influencing birth weight are antenatal care, maternal education, maternal age and parity. Factors influencing the infant nutritional status are growth monitoring, birth weight, environmental sanitation, infection diseases, maternal nutritional status, health services utilization, access to health services and household expenditure.
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Judul: Sintesis nanopartikel Cu2ZnSnS4 menggunakan teknik hidrotermal
Abstrak: Nanopartikel Cu2ZnSnS4 (CZTS) merupakan semikonduktor yang berpotensi sebagai fotokatalis untuk reaksi fotodegradasi zat pewarna. Semikonduktor ini memiliki sela pita yang jauh lebih kecil dibandingkan dengan semikonduktor TiO2, sehingga memungkinkan dapat berkerja hanya dengan paparan sinar matahari. Nanopartikel Cu2ZnSnS4 telah berhasil disintesis menggunakan teknik hidrotermal dengan suhu 200 oC selama 24 jam. Larutan Cu2ZnSnS4 dinetralkan menggunakan amonium hidroksida dan dialiri gas N2 sebelum proses hidrotermal. Hasil analisis mikroskop elektron pemayaran menunjukkan nanopartikel Cu2ZnSnS4 mengalami aglomerasi karena memiliki ukuran partikel yang besar. Hasil analisis difraktogram sinar-X menunjukkan bahwa Cu2ZnSnS4 yang dihasilkan memiliki struktur kesterit dengan senyawa fase sekunder yang terbentuk adalah CuS, ZnS, dan Cu2SnS3. Hasil uji fotodegradasi menunjukkan bahwa senyawa hasil sintesis memiliki kemampuan degradasi dibawah sinar matahari lebih baik dibandingkan dengan TiO2. Namun, pada paparan sinar UV, TiO2 mendegradasi biru metilena lebih baik daripada senyawa hasil sintesis. Kapasitas adsorbsi terhadap biru metilena sebesar 2.6780 mg/g menunjukkan bahwa senyawa hasil sintesis tidak mampu mengadsorpsi dengan baik, sehingga disimpulkan bahwa hilangnya biru metilena dari larutan disebabkan oleh fotodegradasi, bukan oleh adsorpsi
Keyword: band gap, Cu2ZnSnS4, kesterite, photocatalyst, semiconductor