Judul: Tingkat Penerimaan Media Visual Komik Pedoman Gizi Seimbang dan Pengaruhnya terhadap Pengetahuan Gizi Anak Usia Sekolah di Bogor
Abstrak: Tujuan penelitian ini adalah menganalisis tingkat penerimaan media visual komik pedoman gizi seimbang dan pengaruhnya terhadap pengetahuan gizi siswa Sekolah Dasar Negeri di Kota Bogor. Desain penelitian yang digunakan adalah quassy experimental study pre test post test control group. Responden sekolah dasar diambil dengan metode purposive sampling, dengan total 71 responden dari dua sekolah. Pemberian intervensi tidak disertai penjelasan lanjut mengenai media yang diberikan. Hasil penelitian pada tingkat penerimaan komik secara keseluruhan, sebanyak 78.1% menyatakan sangat menyukai komik. Terdapat perbedaan yang signifikan pada peningkatan skor pengetahuan gizi kelompok perlakuan baik pada pre test - post test 1 dan pre test - post test 2 (p<0.05), sedangkan pada kelompok kontrol tidak terdapat perbedaan yang signifikan.
Keyword: daya terima media, media pendidikan gizi, pengembangan materi, pengetahuan gizi, PGS

Judul: Pengembangan Materi dan Daya Terima Pendidikan Gizi Melalui Media Visual Terhadap Pengetahuan Gizi Anak Usia Sekolah Dasar
Abstrak: The aim of this study was to develop nutrition education through visual media, which are poster and leaflet, and analyze their level of acceptance towards the elementary school students’ nutrition knowledge in Bogor. This research was a quacy experimental study pre test post test non-equivalent control group design. The sample of schools were taken by using purposive sampling, with total number of sample was 111, which were 36 samples from SDN 01 Padjajaran, 37 samples from SDN 05 Pengadilan, and 38 samples from SDN 02 Batu Tulis. Nonparametrical test of Wilcoxon Matched-Pairs Signed-Ranks Test done in the nutrition knowledge scores showed that there was a significant increased result in poster experiment group, which were from 77.8 ± 12.5 to 85.9 ± 13.4 in pre testpost test 1 (p = 0.003) and from 77.8 ± 12.5 to 86.5 ± 12.1 in pre test-post test 2 (p = 0.002). Kruskal-Wallis Test done between groups showed that there was a significant difference on nutrition knowledge scores among those groups (p = 0.000). The level of acceptance as a whole in poster was higher than leaflet, which was 83.8%.
Keyword: nutrition knowledge, nutrition education media acceptance level, nutrition education media, developing nutrition education

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.
Keyword: