Judul: Hubungan antara Pengetahuan dan Sikap Ibu tentang Gizi dan Posyandu dengan Status Gizi Balita di Kecamatan Pasar Rebo
Abstrak: Knowledge and mother’s attitudes about nutrition and posyandu are required to improve children feeding pattern so that adequate nutrition for the children is reached, and in this way they can grow and develop well. The purpose of this study was to analyze the correlation between knowledge and mother’s attitudes about nutrition and posyandu with nutritional status of children in subdistrict Pasar Rebo. Study design used in this study was a cross-sectional design. The sampling of this reasearch was 100 mother and their underfive children. Data processing and analysis was done using Microsoft Excel and the Statistical Package for Social Science (SPSS) version 16.0 for Windows. Based on the results of statistical test, there was a significant correlation between the level of participation of mothers with nutrition knowledge levels (p<0.05). The level of mothers nutrition knowledge had no significant correlation to level of energy and protein adequacy (p> 0.05). Mothers nutrition knowledge level had no significant correlation with nutritional status of children based index weight for age, height for age, and weight for height (p> 0.05).
Keyword: posyandu., nutritional status, nutrition attitudes, Nutrition knowledge

Judul: Hubungan Pola Asuh Dan Pengetahuan Gizi Ibu Dengan Status Gizi Dan Kesehatan Anak Balita
Abstrak: Penelitian ini bertujuan untuk menganalisis hubungan antara pola asuh dan pengetahuan gizi ibu dengan status gizi dan kesehatan anak balita dengan desain penelitian cross sectional study. Jumlah sampel dalam penelitian ini 50 orang. Hasil penelitian menunjukkan bahwa 58% ibu telah memiliki pengetahuan gizi yang cukup baik dan menerapkan pola asuh makan yang baik serta 70% pada pola asuh kesehatan dengan kategori baik. Status gizi sampel sebagian besar telah termasuk ke dalam kategori baik (BB/TB) (92%), (TB/U) (90%), dan (BB/U) (92%). Sebanyak 80% sampel memiliki skor morbiditas yang rendah. Terdapat hubungan yang signifikan (p<0,05) antara pengetahuan gizi dengan pola asuh (makan dan kesehatan). Terdapat hubungan yang signifikan (p<0,05) antara status gizi (BB/TB dan BB/U) dengan tingkat konsumsi energi. Terdapat hubungan (p<0,05) antara tingkat asupan protein dengan status gizi.
Keyword: Balita, Pola Asuh, Pengetahuan Gizi, Status Gizi

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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