Judul: Analysis the Cost and Nutrients of Food Waste Inpatients at UPTD RSUD Bangka Tengah
Abstrak: Salah satu indikator pelayanan makanan rumah sakit adalah persentase sisa makanan pasien ≤20%. Dampak sisa makanan mengakibatkan biaya yang terbuang dan asupan gizi pasien menjadi tidak adekuat. Penelitian dilakukan pada pasien rawat inap UPTD RSUD Bangka Tengah menggunakan metode penelitian cross sectional dengan subjek 48 orang. Hasil penelitian menunjukkan bahwa sisa makanan memenuhi indikator pelayanan gizi (<20%). Rata-rata biaya yang terbuang sebagai sisa makanan per pasien adalah Rp 790,79 per hari atau Rp 284.684,4 per tahun. Zat gizi dalam sisa makanan sebesar 68,73 kalori; protein 2,57 gr; lemak 2,47 gr dan karbohidrat 9,39 gr. Hasil penelitian menunjukkan bahwa terdapat hubungan yang signifikan antara sisa makanan dengan jenis kelamin (p=0,001) dan sisa makanan dengan kelas perawatan (p=0,002). Tidak terdapat hubungan yang signifikan antara sisa makanan dengan usia (p=0,605); sisa makanan dengan jenis perawatan (p=0,388) dan sisa makanan dengan jenis diet (p=0,975)., One of hospital food service indicators is the patient's food waste percentage ≤20%. The impact of food waste results in wasted costs and inadequate nutritional intake of patients. The research was inpatients at UPTD RSUD Bangka Tengah used a cross sectional research method with 48 subjects. The results showed that food waste according to indicator (<20%). The cost average of food waste per patient was Rp 790,79 per day or Rp 284.684,4 per year. Nutrients of food waste were 68,73 calories; protein 2,57 gr; fat 2,47 gr and carbohydrates 9,39 gr. The result showed that there was a significant correlation between food waste with gender (p=0,001) and food waste with inpatient class (p=0,002). There was not significant correlation between food waste with age (p=0,605; food waste with type of hospital care (p=0,388) and food waste with type of diet (p=0,975).
Keyword: cost of food waste, food waste, nutrients of food waste

Judul: Cost Analysis of Food Waste and Food Acceptance Inpatient in RSUDZA Banda Aceh
Abstrak: Penelitian ini bertujuan menganalisis biaya sisa makanan dan daya terima makanan pada pasien rawat inap di RSUDZA Banda Aceh. Desain penelitian yang digunakan yaitu cross sectional study dengan jumlah subjek 47 pasien selama 10 hari. Data karakteristik pasien, daya terima makanan, dan data konsumsi makanan luar rumah sakit didapatkan melalui wawancara menggunakan kuesioner dan data sisa makanan pasien diperoleh melalui metode Comstock. Hasil penelitian menunjukkan bahwa rata-rata sisa makanan pasien yaitu sebesar 27,9% dengan biaya rata-rata sisa makanan dalam sehari adalah Rp24.264 per pasien per hari atau sebesar 28,5% dari total biaya makan. Hasil penelitian menunjukkan bahwa terdapat hubungan yang signifikan (p<0,05) antara kondisi fisik dan daya terima dengan sisa makanan pasien., The aim of this study was to analyse the cost of food waste and sensory characteristics of food inpatient in RSUDZA Banda Aceh. The research design was cross sectional study with 47 subject during 10 days. Characteristic subject, food acceptance and consumption of food from outside the hospital were collected by interview using questionnaire and sample of food waste obtained by Comstock methods.The result showed that the average of patients food waste was 27,9% with the average cost was Rp24 264 per patient per day or 28,5% of food cost. The result showed that there was a significant correlation (p<0,05) between physical condition and food acceptance with food waste.
Keyword: Cost of food waste, food waste, Patients

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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