Judul: Pola Asuh Makan Dan Kesehatan Pada Rumah Tangga Yang Tahan Dan Tidak Tahan Pangan Serta Kaitannya Dengan Status Gizi Anak Balita Di Kabupaten Banjarnegara, Provinsi Jawa Tengah
Abstrak: This study aimed to analyze the impacts of parenting practices (feeding and home health practices) on underfive children’s nutritional status in different level of household food security. The study design was a cross-sectional study. The locations were purposively selected at the rural food insecure area in Banjarnegara (Kecamatan Pejawaran and Kecamatan Punggelan). Total samples of the study were 300 children and their families. Data on parenting practices were collected through personal interviews used questionnaire and nutritional status was calculated by using WHO-NCHS z-score. The study showed that 37.3 percent of households were categorized as very food-insecure, while 31.7 percent and 31.0 percent categorized as food-insecure and food-secure, respectively. The average scores of feeding and home health practices among samples were categorized as low (49.0%) and middle (73.1%) respectively, and children of group very food-insecure had the lowest score of parenting practices. There was a significantly difference among the groups in the scores of sample’s feeding practices. The study showed that about 86 percent of children were categorized as normal (BB/TB indicator), but there were 11.6 percent categorized as wasting, while 32.0 percent and 54.3 percent categorized as underweight and stunting, respectively. Statistical analyses showed significant difference in term of nutritional status. There was a significant correlation between child’s nutritional status (BB/U and TB/U) and home health practices, and between child’s nutritional status (BB/U, TB/U and BB/TB) and household food security. The study showed that child’s nutritional status (TB/U) was influenced by feeding practices, home health practices, household food security and father’s occupation.
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Judul: Keterkaitan antara tingkat ketahanan pangan rumah tangga dengan status gizi anggota keluarga di wilayah Kabupaten Banjarnegara Propinsi Jawa Tengah
Abstrak: According to situation of food and nutrient analysis in Province of Central Java, Regency of Banjarnegara include food insecurity area in Indonesia. Food insecurity showed low of household consumption level in that area. Low of household consumption level in household food insecurity cause bad impact, especially nutritional status of household member. The aim of this study is to understand the correlation of household food security with nutritional status of household member, especially in food insecurity area. A descriptive analytic study with cross sectional approach was conducted on 2 areas (Pejawaran and Punggelan) of Banjarnegara. Sample was chosen with simple random sampling which consists of 300 household with children 2-5 years old. Data collected include: sosio-economics household characteristic, household consumption level, history of household food security, and nutritional status of household member. Descriptive analytic was carried to all variables followed by bivariate test using Pearson and Spearman correlation. Measurement of household food security in this study used household overall energy intake. In correlated analyses, large of household was significantly negative with · household food security. Parent's education level and nutritional knowledge was significantly positive with household food security. Measurement of household insecurity with qualitative method was not sensitive to measured household food insecurity but specific to measured household food security. Household food security was significantly positive correlated with nutritional status of under-five children and adult.
Keyword: Measurement of food security and insecurity, Nutritional, Household member

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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