Judul: Hygiene  and  sanitation  at  slaughter  location  during  idul  adha  festival  in  DKI  Jakarta
Abstrak: Penelitian ini bertujuan untuk mempelajari gambaran mengenai kondisi higiene dan sanitasi tempat pemotongan hewan kurban, gambaran tingkat kontaminasi mikroba pada daging hewan kurban serta melihat hubungan antara praktik higiene dan sanitasi terhadap kontaminasi mikroba pada daging hewan kurban. Data yang digunakan dalam penelitian ini merupakan data sekunder hasil pemeriksaan kesehatan hewan dan daging hewan kurban yang dilakukan oleh Fakultas Kedokteran Hewan Institut Pertanian Bogor (FKH-IPB) bekerjasama dengan Laboratorium Kesehatan Masyarakat Veteriner DKI Jakarta (Lab. Kesmavet DKI Jakarta). Responden berasal dari 46 tempat pemotongan hewan kurban di seluruh DKI Jakarta. Uji khi-kuadrat digunakan untuk mengetahui hubungan antara praktik higiene dan sanitasi tempat pemotongan terhadap kontaminasi mikroba dalam daging kurban. Hasil penelitian menunjukkan seluruh variabel tidak memiliki hubungan yang signifikan terhadap jumlah total mikroorganisme dan keberadaan E. coli pada daging (P value > 0.05)., The research was conducted to observe the hygiene and sanitation at slaughter location during Idul Adha festival in DKI Jakarta, microbial impurities rates in meat, and relation between hygiene and sanitation practices to microbial impurities rates in meat. The data that were used in this study was a secondary data from sacrifice animal health examination which have been done by Veterinary Medicine Faculty of Bogor Agriculture University in collaboration with Veterinary Public Health Laboratory in DKI Jakarta. Respondens were taken from 46 slaughtering locations in DKI Jakarta. Chi-square test was used to know the relation between hygiene and sanitation practices to microbial impurities rates in meat. The result showed that all variable was not given significant correlation against the total number of total microorganism and the presence of E. coli in meat (P value > 0.05).
Keyword: daging, Escherichia  coli, higiene, jumlah total mikroorganisme, sanitasi, tempat pemotongan hewan kurban

Judul: Hubungan antara Sanitasi Tempat Pemotongan Hewan Qurban dengan Cemaran Mikroba pada Daging Kambing Di Kotamadya Jakarta Timur.
Abstrak: At Idul Adha, moslem people slaughtering their animals not only in the slaughterhouse but also around mosque, office yard, fields nearby the houses. Meat is categorized as a pottentially hazardous food, because its high water activity (aw > 0.85), pH neutral, vitamin B and mineral aspecially Ferrous, also as main source of protein which is advantageous for microbes growth and categorized meat as a perishable food. Measuring total amount of aerobic microbes (TPC), Coliform, Escherichia coli, Staphylococcus aureus and Salmonella were observed to evaluate the sanitation of animal qurban in East Jakarta. Result obtained that Salmonella was not detected in all meat samples. Good sanitation was observed before slaughtering (81.3%), during slaughtering (21.3%) and after slaughtering (37.5%). Percentage of microbes contamination above Standard SNI 01-6366-2000 of microbes are TPC 73.8% (5.5 x 106 cfu/g), coliform 73.8% (1.1 x 103 MPN/g), E. coli 41.3% (4.1 x 102 MPN/g) and S. aureus 37.5% (2.7 x 103 cfu/g). Relation between doing sanitation before, during and after slaughtering didn’t show a significant relation with coliform and Staphylococcus aureus (P>0.05). There is a significant relation after slaughtering between Eschechia coli and sanitation (P < 0.05) and doing separation meat with viscera, and packing meat together with viscera.
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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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