Judul: Dampak Kenaikan Harga Daging Sapi terhadap Pola Konsumsi Pangan Sumber Protein Hewani di Kabupaten Bogor.
Abstrak: One kind of food which has important role in developing the food security and create human resources who has healthy quality is food animal proteins. The government is targeting food consumption of animal protein as much as 7.2 g/capita/ day in 2014. Food sources of animal protein can be derived from livestock or fishery products like ruminant meat, poultry, fish, eggs, and milk. This study aims to analyze the pattern of household consumption in Bogor Regency, analyze the level of demand elasticity, and perform simulations to analyze the impact of higher prices for meat. The data used comes from SUSENAS 2012 with 1125 households in Bogor Regency. The analytical method used was descriptive analysis and model of Almost Ideal Demand System (AIDS). The analysis showed that the type of ruminant meat consumption group was very inelastic and have a lower level of consumption than other animal protein foods. People in Bogor Regency consume more fish than ruminant meat. Increasing the prices of beef could make other public consumption for food source of animal proteins is down. Food protein consumption for the people of Bogor regency have met the target set by the government
Keyword: SUSENAS, inelastic, consumption patterns, animal protein, AIDS

Judul: Analisis Pola Konsumsi Bahan Pangan Sumber Protein Hewani Berdasarkan Golongan Pendapatan di Kabupaten Cirebon
Abstrak: Animal Protein is the nutritional elements that must be met by the community in order for the creation of qualified human resources. As the dominant area of the coast, Kabupaten Cirebon has the potential of producing foodstuffs of animal protein sources, especially fish. However, fish consumption in the region is not a dominant. Therefore, used Almost Ideal Demand System (AIDS) methods to look at food animal protein consumption patterns Kabupaten Cirebon in each of the revenue, using SUSENAS 2012 data. The egg is a commodity, the dominant consumed. The elasticity of demand of food animal has the properties of inelastic, on commodity among fish eggs have a relationship with a dominant substitution, whereas the dominant complementary relationships occur on commodity meat with eggs. Meat becomes a commodity that has the largest income elasticity values. Animal protein needs of the low income not sufficient standards established. When a simulating done beef price hike, the low income who are having the biggest impact because of the animal's food consumption patterns are having a significant decline
Keyword: simulating, patter consumption, elasticity, AIDS

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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