Judul: Pengetahuan dan Sikap Gizi Ibu dengan Praktek Konsumsi Susu Anak Sekolah TK
Abstrak: Thisstudy is aimed to analyze correlation between mother’s nutritional knowledge and attitude and milk consumption of pre-school children’s (PSC). A cross sectional study design was applied among 136 PSC aged 4-5 yrs old in the two favorite kindergartens of Bogor City - Aliya and Mexindo. The mothers f the PSC filled in a questionnaire consist of sociodemographic characteristics, children’s milk consumption, and a nutritional knowledge-and-attitude. Milk consumsption of PSC was measured by applying a 30 days semi-FFQ method . The results show that most of mother had good nutritional knowledge and attitiude. More than 90% of them agree that drinking milk is a good habit for children. The mother’s nutritional attitudes showed significant positive correlation with children’s milk drinking habit (r = 0.31). No relation was found between nutritional knowledge with attitude and milk consumption
Keyword: pre-school children., milk consumption, nutritional attitude, nutritional knowledge

Judul: Hubungan pengetahuan gizi ibu dengan konsumsi buah dan sayur serta status gizi anak pra sekolah di TK Salman Jakarta
Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara pengetahuan gizi ibu mengenai konsumsi buah dan sayur dan status gizi anak usia pra sekolah di TK Salman Jakarta. Sampel dalam penelitian ini berjumlah 43 orang yang dipilih berdasarkan stratifikasi metode acak. Pengumpulan data dilakukan dengan wawancara menggunakan kuesioner. milik ibu pengetahuan gizi diukur melalui kuesioner. Buah-buahan dan sayur-sayuran konsumsi diukur dengan catatan makanan. Konsumsi buah-buahan dan sayur-sayuran kebiasaan diukur dengan Food Frekwensi Questionnaire (FFQ). Status gizi dari anak usia pra sekolah diukur dengan metode antropometri dengan indeks BB/U, TB/U, dan IMT/U. Analisis data pengetahuan gizi ibu, konsumsi buah-buahan dan sayuran, dan status gizi menggunakan statistik deskriptif dan spearman korelasi. Hasil penelitian menunjukkan bahwa secara umum pengetahuan gizi ibu sedang 53,5%. Sampel konsumsi buah dan sayur pun masih kurang dari porsi yang dianjurkan, 3 porsi buah-buahan (300 g) dan 2 porsi sayuran (200 gram). Buah-buahan terbanyak dikonsumsi dengan frekuensi 7-14 kali kali/minggu berwarna oranye (27,9%). Sayuran yang paling banyak dikonsumsi adalah frekuensi 7-14 kali/minggu adalah wortel (23,3%). Status gizi berdasarkan indeks BB/U secara umum baik (72,1%), berdasarkan indeks TB/U secara umum baik normal (90,7%), dan berdasarkan IMT/U secara umum normal (69,8%). Hasil dari korelasi spearman menunjukkan tidak ada hubungan yang signifikan antar pengetahuan gizi ibu dengan konsumsi buah dan sayur (p>0,05) dan status gizi anak usia pra sekolah (p>0,05). Tidak ada yang signifikan hubungan antara konsumsi buah-buahan dan sayuran dengan status gizi pra anak sekolah (p>0,05).
Keyword: Nutritional knowledge, Fruits consumption, Vegetables consumption, Nutritional status, Pre school children

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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