Judul: Asupan Vitamin A, Status Vitamin A, dan Status Gizi Anak SD di Kecamatan Leuwiliang, Kabupaten Bogor
Abstrak: Growth in human life is influenced by various factors, one of them is nutrient intake. Nutrient intake still a problem that affects the quality of human resources. The objective of this research was to study the intake of vitamin A, vitamin A status, and nutritional status of primary school children in Leuwiliang Sub-District, Bogor Regency. There were 31 children grade 2 and 3 in SD Angsana I and II Cibeber Village selected by purposive sampling technique. The results showed that more than half of the children had medium sufficient levels of vitamin A (54.8 %) with mean value levels of vitamin A 112.3%. Generally, they had normal nutritional status (93.5%). More than half of children had low vitamin A status (58.1%) with mean value retinol serum is 10.7 μg/dl . The result also found that relationship between the level of adequacy of energy and protein with nutritional status of the children were not significant (p>0.05). The relationship between intake of vitamin A to vitamin A status also showed no significant relationship (p>0.05). It was presumably due to the presence of other factors (reserves of vitamin A in the liver). There was no significant relationship between vitamin A status and nutritional status (p>0.05). It was presumably due to the presence of other factors (food consumption, socio-economic and disease factors) affected nutritinal status.
Keyword: school-age children vitamin A consumption, energy and protein consumption

Judul: Hubungan status antropometri dan vitamin A dengan status imun siswa sekolah usia 7-9 tahun di Cibeber, Leuwiliang kabupaten Bogor
Abstrak: Defisiensi vitamin A merupakan penyebab kebutaan yang paling sering dijumpai pada anak-anak dan membuat 250.000-500.000 orang anak meninggal dunia. Lebih kurang 150 juta anak lain mengalami kematian dalam usia anakanak akibat penyakit infeksi yang antara lain akibat status vitamin A yang tidak memadai (Ahmed dan Darnton 2008). Defisiensi Vitamin A berhubungan dengan penurunan imunitas dan peningkatan infeksi. Defisiensi zat gizi mikro juga dapat menyebabkan kehilangan berat badan, kegagalan tumbuh kembang pada anak dan penyebab penurunan cadangan zat gizi yang berpengaruh terhadap penurunan imunitas (Tomkins dan Watson 1993). Tujuan umum penelitian ini adalah untuk mengetahui hubungan antara status antropometri dan status vitamin A dengan status imun siswa sekolah dasar (usia 7-9 tahun) di Cibeber, Leuwiliang Kabupaten Bogor. Tujuan khusus penelitian ini menganalisis: (1) hubungan status antropometri dengan status vitamin A anak; (2) hubungan status vitamin A dengan status imun anak; (3) hubungan status imun dengan morbiditas anak; serta (4) hubungan morbiditas dengan status gizi berdasarkan antropometri anak.
Keyword: 

Judul: Pricing of Lookback Options with Floating Strike Price Using The Monte Carlo Method
Abstrak: Opsi lookback adalah opsi yang payoff-nya bergantung pada harga saham terbesar atau harga saham terkecil yang dicapai selama masa berlaku opsi. Opsi lookback dikatakan dengan floating strike price jika nilai dari strike price sebesar harga saham pada saat jatuh tempo. Nilai hampiran opsi lookback ditentukan dengan metode Monte Carlo, sedangkan nilai eksak didapat dari nilai simulasi terbesar yang mampu dihitung oleh komputer. Berdasarkan hasil penghitungan, nilai galat relatif yang dihasilkan semakin kecil dengan semakin bertambah banyaknya simulasi yang dilakukan, sehingga metode Monte Carlo untuk menghitung harga opsi lookback dengan floating strike price konvergen ke nilai eksaknya., Lookback option is an option whose payoff depends on the maximum or minimum of the asset price reached during the option period. The lookback option is said to be a floating strike price if the value of the strike price is equal to the stock price at maturity. The value of the lookback option is determined by the Monte Carlo method, while the exact value is obtained from the largest simulation value that the computer can compute. Based on the calculation results, the resulting relative error value get smaller with the increasing number of simulations performed. Therefore, the Monte Carlo method to calculate the price of the lookback option with the floating strike price converges to the exact value.
Keyword: lookback option, floating strike price, Monte Carlo method, convergent