Judul: Nutritional Status, Breastfeeding Knowledge, and Breastfeeding Practice in Cirebon Regency
Abstrak: Penelitian ini bertujuan untuk menganalisis hubungan status gizi ibu (asupan zat gizi dan indeks massa tubuh) dan pengetahuan ASI dengan praktik menyusui bayi usia 0–6 bulan di Kabupaten Cirebon. Desain penelitian ini adalah cross sectional study dengan jumlah subjek sebanyak 44 orang. Data yang digunakan merupakan data sekunder. Penelitian berlokasi di tiga desa di Kecamatan Gegesik, Kabupaten Cirebon yang merupakan lokus stunting. Sebanyak 47,7% subjek memiliki status gizi normal dan 29,5% subjek memiliki status gizi obesitas. Sebagian besar subjek memiliki tingkat kecukupan energi dan zat gizi yang belum mencapai kebutuhan harian. Sebanyak 63,6% subjek memiliki pengetahuan tentang ASI yang baik dan 43,2% subjek memiliki praktik menyusui yang kurang sesuai. Tidak terdapat hubungan signifikan antara tingkat kecukupan energi dan zat gizi ibu dengan status gizi bayi (p>0,05). Tidak terdapat hubungan signifikan antara karakteristik, status gizi, dan pengetahuan ibu mengenai pemberian ASI dengan praktik menyusui (p>0,05)., The purpose of this study is to analyze the relationship between maternal nutritional status (nutrient intake and body mass index) and breastfeeding knowledge with breastfeeding practices for infants aged 0-6 months in Cirebon Regency. The design of this research is a cross sectional study with a total of 44 subjects. The data used is secondary data. The study is located in three villages in Gegesik District, Cirebon Regency which were the locus of stunting. The amount of 47.7% subjects have normal nutritional status and 29.5% of subjects have obese nutritional status. Most of the subjects had adequate levels of energy and nutrients that had not yet reached their daily needs. The amount of 63.6% subjects have good knowledge of breastfeeding and 43.2% of the subjects have inappropriate breastfeeding. There is no significant relationship between the level of energy and nutritional adequacy of the mother and the nutritional status of the infants (p>0.05). There is no significant relationship between maternal characteristics, nutritional status, and knowledge of breastfeeding with breastfeeding practices (p>0.05).
Keyword: breastfeeding, breastfeeding knowledge, breastfeeding practice, nutritional adequacy, nutritional status

Judul: Pengetahuan gizi ibu, pola asuh dan status gizi bayi di Desa Bojong Jengkol, Kecamatan Ciampea, Kabupaten Bogor
Abstrak: The direct factors affecting infant’s nutritional status are energy and nutrients intake, and infection. Factors affecting energy and nutrients intake are nutrition knowledge of mother; childcare practices, included feeding and caring practices; and morbidity. The aim of this study was to analyze association between mother’s nutrition knowledge, feeding practices, and immunization with nutritional status of infant. Design of this study was cross sectional. Samples of this study were 60 infants aged 2-24 which were selected purposively. Samples consist of underweight and normal nutritional status (WAZ), The result showed that mother’s nutrition knowledge was positively significant correlated with infant’s nutritional status (r= 0.016 p<0.05). Furthermore, there were positively significant correlation between feeding practices and immunization with infant’s nutritional status( r= 0.031 p<0.05 and p< 0.01, respectively).
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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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