Judul: The Association of Food Consumption and Antenatal Care to the Maternal Nutritional Status and Infant Weight and Lenght in Bogor Municipality
Abstrak: The objectives of the study were to analyze the association between food consumption and antenatal care practices to the maternal nutrtional status and infant weight and length. The cross-sectional study was done in Bogor Municipality, samples were 45 pregnant women in Bogor Municipality. The results showed that a total of 53.3 to 88.9% of pregnant women have poor levels (< 70% RDA) of nutrient consumption, especially of the energy, protein, iron, and vitamin A. Besides that, about 77.8% pregnant women have a low diversity of food consumption. Personal antenatal care was applied among 67% of women such as specific exercise or taking a certain food. Meanwhile, about 95.6% of pregnant women attended the Puskesmas or Posyandu for taking minimum of standard health care. It was found that about 22,2% of pregnant mother having CAC < 23,5 cm was suffer chronic energy malnutrion, prevalence of anemia (Hb < 110 g/L) was 22.2%, and iron deficiency was 37.8% (ferritin < 20 μg/L). The logistic regression analysis showed that socioeconomic characteristics and maternal characteristics have a positive associated on food consumption and health examination, variables which associated with food consumtion is family income (OR = 0,01; 95% CI: 0,00-0,72) and maternal education (OR = 5,49; 95% CI: 1,13-26,71). In other hands, food consumption and antenatal care have a positive associated on maternal nutrition, but no variables significantly associated with the maternal nutritional status (p > 0.05). The results of logistic regression also showed that fodd consumption and antenatal care have a positive associated on birth weight and length, but no variables significantly associated with the birth weight and lenght (p > 0.05).
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Judul: Factors affecting infant growth and development in Bogor Municipality.
Abstrak: The objectives of the study were to analyze the affecting factors of infant growth and development of infants in Bogor Municipality. The cross- sectional study was done in this research, samples were 64 breastfeeding mothers and their infants at age 3 to 10 months in Bogor Municipality. The results showed that 7.8% were severe under nutrition (WAZ), 10.9% were severe wasting (WHZ), 12.5% were stunting (HAZ) and 14.1% were development disorder. The logistic regression showed that factors significantly influence of infant growth based on WAZ was a psychosocial parenting (OR=11.469, 95% CI: 1.613-81.550); and WHZ was income per capita (OR=6.985; 95% CI: 1.100-44.349). While the factor that significantly influence the infants development were the nutritional status based on WAZ of infants (OR=21.665; 95% CI: 1.386-338.618) and maternal education level (OR=10.176; 95% CI: 1.942-53.330).
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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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