Judul: Konsumsi serat dan fast food serta aktivitas fisik orang dewasa yang berstatus gizi obes dan normal
Abstrak: Tujuan umum dari penelitian ini adalah mempelajari konsumsi serat dan fastfood serta aktivitas fisik orang dewasa yang berstatus gizi obes dan normal. Tujuan khusus dari penelitian ini adalah 1) mempelajari karakteristik individu dewasa berstatus gizi obes dan normal, 2) mempelajari konsumsi serat individu dewasa berstatus gizi obes dan normal, 3) mempelajari konsumsi fastfood individu dewasa berstatus gizi obes dan normal, 4) mempelajari aktivitas fisik individu dewasa berstatus gizi obes dan normal, 5) menganalisis hubungan karakteristik individu, konsumsi serat, konsumsi fastfood dan aktivitas fisik. Desain penelitian ini adalah cross sectional study. Lokasi penelitian dilakukan di Kampus IPB (Institut Pertanian Bogor) pada bulan Oktober- November 2010. Penelitian ini merupakan bagian penelitian yang berjudul ”Efikasi Temulawak (Curcuma Xanthorriza Roxb.) dengan bahan aktif Xanthorrhizol untuk meningkatkan Imunitas pada Orang Dewasa Obes”. Contoh dalam penelitian ini adalah pegawai di Kampus IPB. Pemilihan contoh dilakukan berdasarkan kriteria contoh yaitu pegawai di kampus IPB yang memiliki status gizi normal dan obes. Metode pengambilan contoh yaitu dengan cara purposif dengan kriteria jenis kelamin pria dan wanita yang berumur lebih dari 21 tahun dan bersedia menjadi contoh dalam penelitian ini. Jumlah dibagi dalam 2 kelompok, yang berstatus gizi obese dan normal, dengan jumlah per kelompok 25 orang.
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Judul: Gaya Hidup, Intake Zat Gizi Dan Morbiditas Orang Dewasa Yang Berstatus Gizi Obes Dan Normal
Abstrak: The objective of this research was to identify characteristic of samples, food intake, lifestyle, morbidity and energy balance among adult obese and normal nutritional status. A cross-sectional study was conducted from October to November 2010 in Bogor Agricultural University (BAU). The study participants were employee’s rector of BAU. The samples were chosen purposively with criteria were adult category, age >21 years, male and female gender, body mass index (BMI) >27.0 for obese nutritional status; BMI 18.5-25.0 for normal nutritional status, and ready for being sample of research. The number of obese sample were 25 and normal sample 25 people. Majority (72%) of obese samples were 30-49 years old. There was a significant difference in education levels of among samples (p<0.05). Rice, cassava, street food and soft drink consumption were found higher in obese than normal samples. Statistical analysis showed that there was a significant difference in obese and normal samples in protein intakes and adequacy level of protein (p<0.05). There was a significant difference in leisure-time between obese and normal samples (p<0.05). Ready-to-eat food habit was found higher in obese than normal status. The average of energy balance among samples were negative. In addition, there was a significant difference in family history of obesity between obese and normal samples (p<0.05). For the last three month, both subjects suffer from infections of acute respiratory. Diabetes mellitus and uric acid was found in obese subjects, while anemia was found in normal subjects The study showed that nutritional status was positively correlated with age, education levels, frequency of cassava consumption, family history of obesity and ready-to-eat food habit and negatively associated with intakes of protein.
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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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