Judul: Pengaruh Komik "Ayo Sarapan!" Terhadap Tingkat Pengetahuan Sarapan Siswa Sekolah Dasar di Kota Bogor
Abstrak: Tujuan dari penelitian ini adalah untuk menganalisis pengaruh “Ayo Sarapan!” komik sebagai salah satu media edukasi gizi pada pengetahuan sarapan pagi anak sekolah dasar. Komik dirancang secara semi manual dan teknik terkomputerisasi menggunakan program Paint Tool SAI dan dinilai oleh ahlinya. Komik terdiri dari 12 halaman yang memiliki dua karakter utama (Aldi dan Wikan) dengan materi yang disampaikan antara lain adalah: pentingnya sarapan pagi; jenis yang mudah dan bergizi sarapan; dan hubungan antara sarapan pagi dan snack Penelitian ini menggunakan metode quasy desain percobaan, dilakukan di Bogor. Jumlah sampel sebanyak 88 anak pada kelas 3 dan 4 terdiri dari 40 anak kelompok perlakuan (SDN Baranangsiang) dan 48 anak kelompok kontrol (SDN Malabar 1). Komik diberikan kepada siswa pada kelompok perlakuan; kemudian dievaluasi tiga hari dan tiga minggu setelahnya. Hasil penelitian menunjukkan bahwa tingkat pengetahuan sarapan pagi pada kedua kelompok pada awal tes tidak berbeda yaitu 77,8 ± 8,2 pada kelompok perlakuan dan 78,3 ± 13,3 pada kelompok kontrol. Tidak ada perbedaan faktor usia, jenis kelamin, pendidikan ibu dan ayah pada kedua kelompok. Itu Perbedaan pengetahuan sarapan pagi kedua kelompok adalah 10,1 setelah tiga hari dan 7,7 setelah tiga minggu. Hasil analisis regresi menunjukkan bahwa "Ayo Sarapan!" komik berpengaruh positif terhadap pengetahuan sarapan.
Keyword: Children comic, Breakfast knowledge, Elementary school, School children

Judul: Pengaruh Kampanye Sarapan Sehat Terhadap Perubahan Pengetahuan, Sikap, dan Kebiasaan Sarapan Anak Sekolah Dasar di Kabupaten Bogor
Abstrak: The purpose of this study was to analyze the effect of a healthy breakfast campaign against to the changes in knowledge, attitudes, and breakfast habits among elementary school children in Bogor district. Design used in this study was a quasy experimental study. Examples in this study were 229 elementary school children in the nine villages in Bogor district. Nutrition education media used in this study were power point, puppets, picture cards, and drama. Knowledge score before intervention was 52.93 ± 1.32 and increased to 63.13 ± 1.29 after the intervention. The attitude scores before intervention was 79.03 ± 1.18 and increased to 87.41 ± 1.13 after the intervention. The percentage of samples that have a habit of breakfast before intervention was 78.2% and increased to 81.7% after intervention. The result of ANOVA analysis in knowledge and attitude showed that there was a significant difference between media intervention of power point, puppet, and drama to picture cards. Highest scores of knowledge and attitude was in picture cards there were 73.23 ± 1.14 and 91.84 ± 1.09. Media intervention by picture cards give highest change to increased knowledge, attitude, and habits breakfast for elementary school children
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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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