Judul: Pola Asuh Makan, Kualitas Konsumsi Protein, dan Perkembangan Kognitif Anak Usia Prasekolah
Abstrak: Anak usia prasekolah perlu mendapatkan perhatian khusus karena pada masa ini perkembangan dan pertumbuhan fisik anak berjalan dengan cepat. Penelitian ini bertujuan menganalisis hubungan pola asuh makan, kualitas konsumsi protein, dan perkembangan kognitif anak usia prasekolah di Desa Pangandaran, Kabupaten Pangandaran, Jawa Barat. Desain penelitian adalah cross sectional study. Contoh yang diamati sebanyak 50 anak yang terdiri atas 12 anak dari keluarga nelayan dan 38 anak dari keluarga non nelayan. Sebagian besar contoh dalam penelitian ini memiliki status gizi normal berdasarkan indeks berat badan menurut umur (BB/U), tinggi badan menurut umur (TB/U), dan berat badan menurut tinggi badan (BB/TB). Pola asuh lingkungan pada anak dari keluarga nelayan dan anak dari keluarga non nelayan tidak memiliki perbedaan yang signifikan. Terdapat perbedaan signifikan antara perkembangan kognitif anak dari keluarga nelayan dan anak dari keluarga non nelayan (p<0.05). Faktor yang berhubungan dengan perkembangan kognitif anak meliputi status gizi berdasarkan indeks TB/U (p<0.05) dan subskala stimulasi akademik pada pola asuh lingkungan (instrumen HOME) (p<0.01).
Keyword: instrumen HOME, kualitas protein, pola asuh lingkungan, status gizi

Judul: Pola asuh makan, Perkembangan Bahasa dan Kognitif pada Anak Balita Stunted dan Normal di Kelurahan Sumur Batu Bantar Gebang Bekasi
Abstrak: The problem of protein energy inadequacy is an major problem among underfives that effects of child growth. The prevelance of stunted and severe stunted status among underfives in Indonesia in 2010 based on Height/Age (H/A) Index was 35.6 % (18.5% severe stunted and 17.1% stunted). The purpose of this study to identify the association between nutrition status and language and cognitive development of underfives also differences of language and cognitive development between stunted and normal childern. The study design was a cross-sectional study. Sample size was 70 children consisted of 35 normal and 35 stunted childern. The highest percentage level of education of fathers and mothers only primary school and more than half of children came from poor families. It was show that stunted childern had lower language and cognitive development than normal childern. There was significant difference (p<0.05) of language and cognitive development between normal (non-stunted) childern and stunted. Also there was significant difference (p<0.05) between age of childern, mother level of education and family income with language and cognitive development. Child care practices was no difference between stunted childeren and non-stunted childern. There was a significant association between nutrition status based on Height/Age with language development (p<0.05), but it was no association with cognitive developmentm (p>0.05).
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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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