Judul: Faktor Gaya Hidup Dalam Hubungannya Dengan Risiko Kegemukan Orang Dewasa Di Provinsi Sulawesi Utara, Dki Jakarta, Dan Gorontalo
Abstrak: The prevalence of obesity has increased rapidly in developing countries across all population groups especially on adult. Life styles modification take important role for that. The result of Basic Health National Survey (Riskesdas) 2007 on adult in Indonesia showed that the prevalence of obesity on adult in Sulawesi Utara (33.2%), DKI Jakarta (26.9%), and Gorontalo (26.3%) was the highest in Indonesia. This study is purposing to analyse relathionships between lifestyle and obesity risk factors in Sulawesi Utara, DKI Jakarta, and Gorontalo. Design of the study is cross sectional according to Riskesdas 2007 design. Obesity clasiffication is determined by Body Mass Index (BMI) which is obesity (overweight and obese) is defined as BMI ≥25.00 and non-obesity is defined as BMI <25.00. Logistic regression analyses are carried out to determine the odds ratio of obesity across the whole characteristics. Result show that female, city area, revenue expenditure quintil 3 to 5, marriage, age ≥ 20 y can be enhance obesity risk factors on adults in three provinces. Beside that, less of physical activities as bad lifestyle can increase obesity risk factor undirectly. This implies that physical activities promotion is necessary to do at an early age for preventing obesity.
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Judul: Faktor Risiko Obesitas Sentral Pada Orang Dewasa Di Sulawesi Utara, Gorontalo Dan Dki Jakarta
Abstrak: Obesity is now considered as a major public health problem, affecting both developed and developing countries. Recently, central obesity has greater health hazards than overall obesity. The aim of this research is to analyze risk factors of central obesity among adults in North Sulawesi, Gorontalo, and Jakarta. This research used secondary data of Riskesdas 2007, Department of Health. The criterias of the study location was the province that had the three highest prevalence of central obesity. The total samples was 26 561 subjects aged 15 years. A logistic regressions was used to analyze risk factors of central obesity. Results showed that risk factors of central obesity in North Sulawesi are aged 35, women, married, divorce/widowed, high school, housewife, military/police/civil servants, private business officers, entrepreneur/private servant, urban area, and hard inactivity. Risk factors of central obesity in Gorontalo are aged 35, women, married, divorce/widowed, housewife, military/police/civil servants, entrepreneur/ private servant, expenditure 20 tile, urban area, hard inactivity, and mental disorder. Risk factors of central obesity in Jakarta are aged 35, women, married, divorce/widowed, housewife, private business officers, entrepreneur/private servant , expenditure fifth quintile , former smoker, fatty food, and mental disorder. Sweet food is the factor that reduce of central obesity in Jakarta. Women is more likely having central obesity in thirth provinces.
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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