Judul: Knowledge, Attitudes, and Practices of Food Handlers' Hygiene and Sanitation at Tegalega Park, Bandung City
Abstrak: Keracunan pangan dapat terjadi akibat konsumsi pangan siap saji dari pedagang kaki lima yang tercemar mikroba patogen. Tujuan dari penelitian ini adalah mengukur tingkat pengetahuan, sikap, dan praktik higiene dan sanitasi penjamah pangan di lingkungan Taman Tegalega Kota Bandung, dan melihat korelasi antar pengetahuan, sikap dan praktik, serta merumuskan rekomendasi perbaikan. Metode yang digunakan adalah survei terhadap 154 orang penjamah pangan. Hasil penelitian menunjukkan bahwa penjamah pangan telah memiliki pengetahuan, sikap, dan praktik higiene dan sanitasi yang baik (skor =70%) yang ditunjukkan masing-masing sebanyak 53,90% responden untuk pengetahuan, 54,55% untuk sikap, dan 57,79% untuk praktik higiene dan sanitasi. Karakteristik responden (usia, tingkat pendidikan, pengalaman bekerja, dan riwayat penyuluhan) berkorelasi positif terhadap pengetahuan, sikap, dan praktik higiene dan sanitasi. Korelasi antara sikap terhadap praktik cenderung lebih kuat dibanding pengetahuan terhadap sikap dan praktik. Secara keseluruhan masih perlu dilakukan peningkatan pengetahuan, sikap, dan praktik baik melalui penyediaan dan pemerataan fasilitas kebersihan maupun penyuluhan/pelatihan., Food poisoning can occur due to consumption of ready-to-eat food from street vendors contaminated with pathogenic microbes. The purpose of this study is to measure the level of knowledge, attitudes, and practices of hygiene and sanitation of food handlers in the Tegalega Park area, Bandung City, to see the correlation between knowledge, attitudes, and practices, and to formulate recommendations for improvement. The method used was a survey of 154 food handlers. The results showed that food handlers had good knowledge, attitudes, and hygiene and sanitation practices (score =70%) which were shown by 53.90% of respondents for knowledge, 54.55% for attitudes, and 57.79% for hygiene and sanitation practices. Respondent characteristics (age, education level, work experience, and experience of training) were positively correlated with knowledge, attitudes, and hygiene and sanitation practices. The correlation between attitudes toward practices tended to be stronger than knowledge toward attitudes and practices. Overall, it is still necessary to improve knowledge, attitudes, and practices through the equal distribution of cleaning facilities as well as counseling/training.
Keyword: higiene sanitasi, pengetahuan, Sikap, Praktik, penjamah pangan

Judul: Studi Knowledge, Attitude, and Practice (KAP) Higiene Pangan pada Food Handler di Kios Makanan di Dalam dan Luar Kampus IPB Dramaga, Bogor
Abstrak: Food besides giving benefit for human health is also easy to be contaminated with various contaminants so that can cause disease (foodborne disease). One of many factors influencing incidence of foodborne disease is food handler. Important factors on food handlers which have impacts on food hygiene are knowledge, attitude, and practice. The purpose of this study was to determine the level of knowledge, attitudes, and practices; correlation between knowledge, attitudes, and practices; and risk factors of food hygiene practices. Total of 77 kiosks from 373 food kiosks inside and outside of IPB campus in Dramaga, Bogor was sampled randomly. The data include characteristics and KAP food handler which is obtained from interviews with respondents using questionnaires and observations, and level surface sanitizing food handlers hands and dishes in kiosks with RODAC test (total plate count and the number of Staphylococcus aureus). This study showed that most of the food handlers were categorized as good in knowledge (55.8%) and practices (70.1%), while most of food handlers’ attitude were categorized as moderate (51.9%). The level of hygiene in food kiosks was mostly good (76.6%). Risk factors which influenced on hygiene level in food kiosks were age (young age, OR = 12.6), the participation in extension (never exposed to extension, OR = 8.3), and attitude (bad attitude, OR = 43.7). Characteristic variables that had significant correlation with knowledge, attitude, and practice were the correlation between extension and knowledge (r = 0.59), monitoring and knowledge (r = 0.63), work experience and attitude (r = 0.35), purpose of business and attitude (r = 0.51), extension and attitude (r = 0.53), and age and practice (r = 0.71). This study showed significant correlation (p<0.05) between knowledge and attitude (r=0.73), knowledge and practice (r=0.79), and attitude and practice (r=0.84). More than half of food kiosks showed bad sanitation level of hands and plates. Practice of personal hygiene showed significant correlation with score the number of Staphylococcus aureus in food handler hand (r=0.15). The results of this study should be considered as potential threat to consumer health inside and outside of IPB campus in Dramaga, Bogor.
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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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