Judul: Analisis pengaruh food coping strategy terhadap ketahanan pangan rumahtangga petani di kabupaten Lebak Banten
Abstrak: The general objective of this research was to analyze the influence of score of food coping strategy toward household food security. The particular objectives of this research were to: 1) Identify household food security; 2) identify the characteristics food access of sample (size of family, father’s education, father’s occupation, family’s income, education and nutritional knowledge of the mothers, and social support); 3) Identify the food coping strategy in farmer’s household; 4) Identify the person who do the food coping strategy in farmer’s household; 5) Analyze the correlation between score of food coping strategy and household food security; 6) Analyze the influence factors of household food security. The research was conducted by using cross sectional study design from April to May 2009 in Kabupaten Lebak Banten. Sample was chosen by purposive sampling resulting in 101 households. The results show that 63.4% samples in household’s level were in food secure condition and 25.7% samples were in serious food insecure condition. Half of samples (49.5%) included in the small households (with 4 members of household or less). Generally, in age, most of the paterfamilias (57.4%) were in medium adult category (40 – 59 years). The dissemination of mother’s age were in the early adult category, that is 46.5% and 47.5% of mothers were in the medium adult category. Almost of all the mother (87.1%) included in low nutritional knowledge group. Spearman Correlation Test shows that the score of coping strategy have no significant correlation with household food security and the size of household has negative significant correlation with household food security (r=-0.270; p<0.01). The number of farm areas that owned by the farmer’s households have positive significant correlation with their household food security (r=0.309; p<0.01). It means that larger farm area that owned by the farmer’s household implied the better condition of household food security. However, Pearson Correlation Test shows that consumption of energy has negative significant correlation with score of coping strategy (r=-0.208; p=<0.05). It means that the higher score of coping strategy implied little in consumption of energy. It shows the decrease of food security condition. Regretion Test shows the factors that influence the household food security, for instance, number of farm area that owned by farmer household, poverty status, size of household, score of coping strategy, and alocation of food expenditure.
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Judul: Food Coping Strategy Rumah Tangga Yang Tinggal Di Wilayah Rawan Pangan Dan Gizi Kabupaten Banjarnegara, Propinsi Jawa Tengah
Abstrak: According to Food Insecurity Atlas, Banjarnegara is included of insecurity food area. In this area, there are food security household and food insecurity household. Food insecurity household is need the strategy to maintain the food intake. The general objective of this study is to analyze household food coping strategy in food insecurity area, Banjarnegara, Central Java. The specific objectives are to identify sosio-economic characteristics of household, to identify history of food insecurity in food security and food insecurity household, to analyze correlation of food coping strategy level with socio-economic characteristics of household and levels of household security. 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 : socio-economic characteristics of household, history of food insecurity,household food coping strategy, level of household food security, and nutritional status of under-five children. Descriptive analytic was carried to all variables followed by bivariate test using Spearman correlation. In correlated analysis, sosio-economic characteristics (parents education level, total of expenditure ), was significantly negative correlated with level of food coping strategy. The age of mother was significantly positive correlated with level of food coping strategy. Level of household food security was significantly negative correlated with level of food coping strategy.
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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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