Judul: Pengetahuan Gizi, Pola Konsumsi Pangan, Aktivitas Fisik dan Hubungannya dengan Status Gizi Mahasiswa Asal Papua di Bogor
Abstrak: Students Papua referred to as of Leaving-Home students, who are want to continue their advance study to the university level that are outside the area of origin. The general objectives of this study were to assess nutrition knowledge, food consumption patterns, physical activity and their relationship to the nutritional status of students Papua in Bogor. This research was conducted in May-June 2013 followed a cross-sectional study design. Samples was purposively chosen with the total of 60 students who were fully participative in this study.The study showed that in general the nutritional knowledge of students belong to the category of less (65%); moderate (30%) and the rest (5%) as good. The average level of physical activity (PAL) based on the value of PAL between 1.40-1.69 which belongs to light activity. Most on the them (41.7%) were categorized as deficient energy, wereas most (35%) were categorized as deficient protein. Nutritional Status of students determined based on their BMI, its found that 15 % students are thin, 58.3% normal and 26.7 % student are categorized as obese. Statistical analysis by Rank Spearman correlation test showed that vitamin C consumption of the student in Baranangsiang significantly achieved recommended dietary allowance (p<0.05). Energy consumption significantly associated (p<0.05) with the nutritional status of the student in Dramaga. Sufficiency level of nutrients are still deficits, and need to be socialized to the students by using General Balanced Nutrition Guidelines (PUGS) in order to meet the daily nutritional needs of students.
Keyword: Students Papua in Bogor, Nutritional status Physical activity, Nutrition knowledge, Food consumption patterns

Judul: Pengetahuan Gizi terkait Penyakit Degeneratif, Pola Konsumsi, dan Aktivitas Fisik Mahasiswa IPB
Abstrak: This study aims to analyze the association between nutrition knowledge with food consumption pattern and physical activity of students in Bogor Agricultural University. Design of this study was cross sectional with purposive sampling 80 students in nutrition science and forest management Bogor Agricultural University. Nutrition knowledge related degenerative disease in sample GIZ (79.3±9.5) was higher than MNH (39.3±17.1). The average frequency of consumption dietary fats, sweetened food, salty and preserved food, fast food, soft drink and caffeinated beverages in sample MNH (8.8±5.2; 2.1±3.7; 16.5±11.2; 7.9±2.2; 4.6±3.7; 3.6±4.2; 2.6±3.0) times/week was higher than sample GIZ (7.8±4.0; 0.9±1.3; 13.5±8.7; 4.1±2.8; 2.3±3.3; 1.3±2.6) times/week, respectively. However, the average vi frequency of consumption vegetables and fruits in the sample GIZ (18.6±12.5; 10.3±8.9) times/week was higher than sample MNH (15.0±11.5; 6.1±5.4) times/week, respectively. Physical activity levels of sample GIZ (1.56±0.21) was relatively similar to the MNH (1.59±0.19). Based on Spearman correlation, there was a significant correlation (p<0.05) between nutrition knowledge related degenerative disease with frequency of consumption salty and preserved food, vegetables, fruits, and caffeinated beverages. There was no significant correlation (p≥0.05) between nutrition knowledge related degenerative disease with frequency consumption of dietary fats, sweetened food, fast food, soft drink, dan physical activity.
Keyword: Bogor Agricultural University, physical activity., nutrition knowledge related degenerative disease, food pattern

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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