Judul: Hubungan Pengetahuan Gizi, Konsumsi Pangan Goitrogenik dan Garam dengan Kadar Iodium Urin Ibu Hamil di Desa Gekbrong Cianjur
Abstrak: Penelitian ini bertujuan untuk menganalisis hubungan antara pengetahuan gizi, konsumsi pangan goitrogenik dan garam dengan kadar iodium urin ibu hamil di Desa Gekbrong, Cianjur. Desain penelitian adalah cross sectional study. Jumlah ibu hamil pada penelitian sebanyak 50 orang. Penelitian dilakukan di Desa Gekbrong pada bulan Februari-Mei 2016. Hasil uji hubungan menunjukkan terdapat hubungan negatif secara signifikan antara hubungan konsumsi pangan goitrogenik baik berdasarkan frekuensi maupun kandungan tiosianat dengan kadar iodium urin dan hubungan antara pengetahuan gizi dengan frekuensi konsumsi pangan goitrogenik (P value <0.05). Namun, tidak terdapat hubungan secara signifikan antara hubungan pengetahuan gizi dengan konsumsi garam, hubungan antara pengetahuan gizi dengan kandungan tiosianat, hubungan antara usia dengan kadar iodium urin, hubungan antara pengetahuan gizi dengan kadar iodium urin dan hubungan antara konsumsi garam dengan kadar iodium urin (P value >0.05).
Keyword: garam, goitrogenik, iodium

Judul: Hubungan Pengetahuan, Sikap dan Praktik Gizi Ibu dengan Konsumsi Pangan Sumber Yodium dan Penggunaan Jenis Garam Rumah Tangga di Wilayah Pegunungan Kabupaten Cianjur
Abstrak: This study aimed to analyze relationship between mother nutrition knowledge, attitude, and practice and consumption of iodine source and consumption of salt among households in Cianjur highland area. This study was a cross-sectional study, conducted on 153 mother of 4th and 5th grades elementary school students. Iodine source food which frequently consumed were salted fish (68.8%) and eggs (66.7%). Spearman Rank correlation test showed that there ware significant correlations between nutrition knowledge and nutrition attitude (p=0.001; r=0.263), nutrition knowledge and nutrition practice (p=0.003; r=0.221), nutrition practice and food consumption (p=0.064; r=0.124), nutrition attitude and consumption of salt (p=0.064; r=-0.124), and nutrition practice and selection kinds of salt (p=0.004; r=0.216). No significant correlation between nutrition knowledge and consumption of salt (p=0.156); nutrition attitude and nutrition practice (p=0.103); nutrition knowledge and consumption iodine food (p=0.349); and nutrition attitude and consumption iodine food (p= 0.201).
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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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