Judul: Keragaan Konsumsi Pangan, Aktivitas Fisik dan Status Gizi Narapidana di Lembaga Pemasyarakatan Paledang Bogor
Abstrak: The purpose of this study was to observed food consumption, physical activity and prisoners’s nutritional status at Paledang Prison Bogor. The design of study was cross sectional, 85 samples was collected in October 2013. The sampling technique was purposive, data was collected by questionnaire using an interview structured. The results showed that prisoners adequacy level of energy, protein, vitamin A, and Fe were categorized normal, whereas adequacy level of vitamin C, calcium, and phosphor were categorized deficit. Physical activity levels of prisoners were low category, prisoners nutritional status decrease since they stayed in prison. Chi-Square correlation test results showed there were no correlation between energy intake and protein with nutritional status, and time of detention with nutritional status (p>0.05), however there was negative correlation between physical activity with nutritional status (p<0.05).
Keyword: nutritional status., prisoners, food consumption, physical activity

Judul: Analisis Penyelenggaraan Makanan, Tingkat Kesukaan dan Sisa Konsumsi Pangan Narapidana di Lembaga Pemasyarakatan Paledang, Bogor
Abstrak: The purpose of this study was to analyze the food service, preference level and prisoner’s residual of food consumption at Paledang prison Bogor. The design of study was cross sectional, 85 sampel was collected in October 2013. The food service consist of inputs (human resources, space processing, raw materials and funds), the process (menus planning, ordering and purchasing of groceries, grocery receipted, processing, presentation and distribution, recording and reporting, sanitation and hygiene), and output (food availability). The food service at prison Paledang was not good enough and has not complied the standard. The menus of preference level of food consumption are presented belong like and neutral categorized. The residual of food consumption level ranged from 7-63%. Statistical test result showed no significant correlation between individual characteristics of the prisoners with the preference level of food consumption (p>0.05).
Keyword: residual of food consumption, food service, prisoner, prison

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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