Judul: Kontribusi Raskin terhadap Total Konsumsi Beras dan Tingkat Kecukupan Gizi pada Rumah Tangga Miskin di Bogor.
Abstrak: The aim of this study was to analyze contribution of Rice for the Poor (Raskin) to total rice consumption and nutritional adequacy on poor households in Bogor. Design study used cross sectional study and it was done in Kabupaten and Kota Bogor. There were 98 poor households which listed as Rumah Tangga Penerima Manfaat (RTS-PM) Raskin chosen randomly as samples. Result of this study showed that average amount of Raskin which received by households were 5.8 kg/hh/month (2.8 kg in Dramaga, 2.4 kg in Leuwiliang, 9.0 kg in Bogor Selatan). Average of households Raskin consumption were 40.4 gram/capita/day, despite of total households rice consumption were 234.6 gram/capita/day (221.4 gram in Dramaga, 255.9 gram in Leuwiliang, 230.1 gram in Bogor Selatan). Contribution of Raskin for total households rice consumption (7.0 kg/capita/month) were 17.2%. Total Raskin which received by household only could provide household rice consumption for 9.5 days. If Raskin fortified with 80 ppm iron, 30 ppm zinc, 6.4 ppm thiamine, 1.3 ppm folic acid, 0.01 ppm vitamin B12, and 53 ppm niasin were estimated to increase micronutrients contribution of iron 20.0%, thiamine 17.8%, vitamin B12 14.8%, niasin 13.9%, folic acid 12.9%, and zinc 10.4% respectively.
Keyword: rice, Raskin, Poor household

Judul: Optimalisasi konsumsi pangan bagi rumahtangga miskin berdasarkan kecukupan gizi, kebiasaan pangan dan pendapatan
Abstrak: This research is aimed at finding the solution for poor households by recommanding the food that is best consumed by individuals based on the nutritional adequacy, food habit and income. Based on the optimum solution, the minimum cost of minimum adequacy. This research was carried out in April - June 2009 in Babakan Village, Dramaga Subdistrict, Bogor Regency. Samples for the research were poor households that were chosen purposively and gradually based on BKKBN data.
Keyword: Nutritional Adequacy, Food Consumption, Poor Household, Goal Programming, Statistical Analysis System (SAS)

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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