Judul: Tingkat Pengetahuan Gizi, Kesesuaian Diet dan Status Gizi Anggota Unit Kegiatan Mahasiswa (UKM) Sepakbola Institut Pertanian Bogor
Abstrak: Penelitian ini bertujuan untuk mempelajari karakteristik, tingkat pengetahuan gizi, asupan gizi, keluhan kesehatan selama pertandingan dan status gizi anggota UKM sepakbola IPB Darmaga. Adapun tujuan khusus dari penelitian ini meliputi (1) Mempelajari karakteristik anggota UKM sepakbola IPB (2) Mempelajari asupan zat gizi dan akses pangan anggota UKM sepakbola IPB (3) Mempelajari kesesuaian diet anggota UKM sepakbola IPB dengan kebutuhan zat gizi pemain sepakbola serta keluhan-keluhan kesehatan pemain selama pertandingan (4) Menganalisa status gizi anggota UKM sepakbola IPB. Penelitian ini dilakukan dengan menggunakan desain cross sectional study, yaitu pengumpulan paparan dan outcome pada satu waktu.Populasi penelitian adalah semua anggota UKM sepakbola IPB yang terdaftar di Kampus IPB Darmaga. Contoh ditentukan secara purposive sampling yaitu berdasarkan kehadiran pada saat pertandingan dilaksanakan.
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Judul: ubungan Pengetahuan Gizi, Keanekaragaman Konsumsi Pangan dan Kebiasaan Olahraga dengan Kebugaran Anggota UKM Sepakbola IPB
Abstrak: The objective of this study was to analyze the association of nutritional knowledge, food diversification, exercise habits and fitness in soccer club members in Bogor Agricultural University. A cross sectional study of 25 subjects was conducted. The study showed the average score of subjects’ nutritional knowledge was categorized as moderate (80%) and food consumption of most of the subjects (84%) were not varying. Energy and fat sufficiency levels of the subjects were in normal category. Protein, carbohydrate and vitamin A sufficiency levels of most of the subjects were in below normal category. Calcium Iron, and vitamin C sufficiency levels of subjects were sufficient. Most of the VO2max of 64% subjects were in sufficient category. The study showed that there was correlation (p<0.05) between nutritional knowledge and exercise habits, nutritional knowledge and fitness, exercise habits and fitness. There was no correlation (p>0.05) between nutritional knowledge and food diversification and nutrient sufficiency level.
Keyword: fitness, physical activity, exercise habits, nutritional knowledge

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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