Judul: Pola konsumsi pangan hewani remaja di SMA Negeri 8 Kota Bekasi
Abstrak: Penelitian ini bertujuan menganalisis pola konsumsi pangan hewani remaja di SMA Negeri 8 Kota Bekasi dengan menggunakan desain penelitian cross sectional study. Jumlah sampel dalam penelitian ini adalah 64 orang. Hasil penelitian menunjukan pangan hewani yang sangat disukai 65.6% remaja adalah es krim. Telur ayam merupakan pangan hewani yang paling besar frekuensi konsumsinya yaitu 4.96 kali/minggu. Rata-rata asupan energi dan protein remaja sebesar 1442±394 kkal dan 39.91±11.51 g. Sebesar 71.9% dan 84.4% remaja memiliki tingkat kecukupan energi dan protein sangat kurang. Rata-rata asupan protein hewani remaja sebesar 20.40±7.11 g. Sebesar 46.9% remaja memiliki asupan protein hewani cukup. Hasil uji korelasi Spearman menunjukan terdapat hubungan antara uang saku dan pengeluaran pangan (p<0.05), preferensi pangan hewani dan frekuensi konsumsi pangan hewani (p<0.05), dan tidak terdapat hubungan antara pengeluaran pangan, pengetahuan gizi, pendidikan orangtua, pendapatan keluarga, dan besar keluarga dengan asupan protein hewani (p>0.05).
Keyword: Adolescent, socioeconomic, animal source food, nutritional adequacy level

Judul: Pola Konsumsi Pangan Hewani dan Status Gizi Remaja SMA dengan status Sosial Ekonomi Berbeda di Bogor.
Abstrak: RETTHA APRILIAN. Food derived from an Animal Consumption Patterns and Nutritional Status of Senior High School Adolescents in a Different Social Economy Status in Bogor. Supervised by HADI RIYADI and YAYAT HERYATNO. Adolescence is an important phase of human growing and maturing. Protein is one of nutrient substance which has special function in growing process that can’t be replace by the other nutrient substance. The special functions of protein are to build up, keep up, and replace the body cells and tissues. Food derived from an animal is a good protein source in quantity and quality. Food intake, especially protein intake is influenced by social economy factors, including income, education, and occupation. The aim of this research was to analyze the correlation between food derived from an animal consumption and nutritional status of senior high school adolescents in a different social economy status. A cross sectional study design was applied in this research. The research was implemented at two senior high school which have a different social economy characteristic. SMAN 2 Bogor was selected to represent adolesents at urban areas who have higher social economy status and SMAN 1 Ciampea for lower social economy status which located at rural areas. Sample was chosen by stratified random sampling which consists of 120 adolescents. Descriptive analytic was carried out to all variables followed by bivariate test using Spearman correlation and Pearson correlation. Independent-sample T test was used to compare means between two data sample. The conclusion of this research showed the difference pattern of food derived from an animal consumption between senior high school adolescents at urban areas (SMAN 2 Bogor) and senior high school adolescents at rural areas (SMAN 1 Ciampea). Protein of food derived from an animal consumption of adolesents in SMAN 2 Bogor was higher than adolesents in SMAN 1 Ciampea. Keywords: food derived from an animal consumption, adolescents, social economy status, nutritional status
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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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