Judul: Analisis Konsumsi Pangan Hewani, Tingkat Pemenuhan Gizi, dan  Status Gizi Siswa SD di Cijeruk, Bogor
Abstrak: Konsumsi pangan hewani yang banyak mengandung protein, vitamin dan mineral masih tergolong rendah terutama pada siswa sekolah dan remaja. Penelitian ini bertujuan untuk menganalisis konsumsi pangan hewani, tingkat pemenuhan gizi dan status gizi siswa sekolah dasar di Cijeruk, Kabupaten Bogor. Desain penelitian cross-sectional study dengan data sekunder pada 915 siswa dari 16 SD di Cijeruk, Kabupaten Bogor pada tahun 2019. Data konsumsi pangan terutama pangan hewani melalui food recall 3×24 jam, tingkat pemenuhan gizi dihitung berdasarkan perbandingan total asupan harian dengan kebutuhan siswa tiap individu, dan status gizi diperoleh dari data antropometri dan kadar hemoglobin siswa. Hasil penelitian menunjukkan konsumsi pangan hewani siswa belum sesuai dengan anjuran pedoman gizi seimbang. Tingkat pemenuhan gizi siswa tergolong defisit kecuali zat besi. Sebagian besar siswa berstatus gizi baik, namun masih terdapat siswa yang tergolong gizi lebih (5,7%) dan obesitas (6,7%), serta 77,9% siswa mengalami anemia dengan tingkat keparahan yang berbeda-beda. Hasil uji statistik menunjukkan kontribusi gizi dari pangan hewani berhubungan signifikan positif dengan pemenuhan gizi, sedangkan kontribusi energi, protein, dan lemak dari pangan hewani memiliki hubungan signifikan negatif dengan status gizi (IMT/U), serta terdapat hubungan signifikan negatif antara kontribusi energi, protein, lemak, dan vitamin B9 dari pangan hewani dengan kadar hemoglobin (p<0,05)., Animal protein consumption that contain lots of protein, vitamins, minerals is still relatively less, especially in school-age children and adolescents. This study aimed to analyze animal protein consumption, nutrient adequacy level, and nutritional status of elementary school students in Cijeruk, Bogor. The research design was cross-sectional study with secondary data on 915 subject from 16 elementary schools in Cijeruk, Bogor in 2019. Animal protein consumption’s were collected by 3×24 hours, nutrient adequacy level were calculated based on student’s nutrient requirements, nutritional status were collected from anthropometry’s data and student’s hemoglobin levels. The results showed student’s animal protein consumption is not accordance with recommended balanced nutrition guidelines. Student’s adequacy level of macro and micro nutrient were classified as deficit except iron. Most of students had good nutritional status, but still had students who classified overweight (5,7%) and obese (6,7%). 77,9% students have anemia with different severity. Correlation test showed contribution nutrients from animal protein foods was significantly positive with nutrient adequacy, while contribution of energy, protein, and fat from animal protein foods was significantly negative with nutritional status (BMI/A), and there was negative correlation between contribution of energy, protein, fat, and vitamin B9 from animal protein foods with hemoglobin levels (p<0,05).
Keyword: animal protein, consumption, elementary school, nutrient adequacy, nutritional status

Judul: Analisis Densitas asupan zat gizi dan hubungannya dengan status gizi siswa sekolah dasar di kota Bogor
Abstrak: AHMAD FAUZI. Analisis Densitas Asupan Zat Gizi dan Hubungannya dengan Status Gizi Siswa Sekolah Dasar di Kota Bogor. Dibimbing oleh IKEU TANZIHA. Penelitian ini bertujuan untuk menganalisis densitas zat gizi dan hubungannya dengan status gizi siswa sekolah dasar di Kota Bogor. Desain yang digunakan adalah cross sectional study dengan metode random sampling di empat sekolah dasar, kemudian dari masing-masing kelas diambil seluruh siswa sebagai contoh. Contoh berjumlah 123 siswa sekolah dasar. Jenis data yang dikumpulkan adalah data primer dan sekunder serta analisis statistik yang digunakan adalah uji korelasi chi square dan uji beda Mann Whitney. Hasil penelitian menunjukkan bahwa sebagian besar contoh memiliki densitas asupan protein (61%) dan zat besi (51%) yang cukup, sedangkan densitas asupan kalsium (61.8%), Vitamin A (95.9%) dan vitamin C (89.4%) tergolong kurang. Sebagian besar densitas pangan sarapan contoh termasuk kurang baik (78.8%). Jenis kelamin pada setiap kategori densitas asupan zat gizi tidak berbeda signifikan. Sebagian besar status gizi contoh normal tetapi 25% contoh mengalami kegemukan. Terdapat hubungan signifikan antara densitas asupan protein dengan status gizi., AHMAD FAUZI. The analysis of nutrient intake density and correlation with nutritional status at Elementary School Children in Bogor. Supervised by IKEU TANZIHA. The purpose of this study was to analyze nutrient intake density and correlation with nutritional status of elementary school student in Bogor. The design of this study was cross-sectional study by random sampling method in four elementary schools. The subject of this study were all students taken from each class, with the total number of subject were 123 students of elementary school. The data collected were primary and secondary data. The data were further anlyzed by Chi Square correlation and Mann Whitney test. The result showed that most of subject had adequate density nutrients score in proteins (61 %) and iron (51 %), while density nutrients score in calcium (61.8 %), vitamin A (95.9 %) and vitamin C (89.4 %) were less. Most of subject's nutrient density in breakfast were categorized poor (78.8 %). There is no significant difference in each category of nutrient intake density for different gender. Most of subject's nutritional status were normal, but 25% of them were obese. The density of proteins intake had significant correlations with nutritional status.
Keyword: Densitas asupan zat gizi, densitas zat gizi pangan, status gizi, siswa  sekolah dasar

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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