Judul: Animal Slaughtering Process Evaluation in Jami  Baitul Muttaqin Mosque in The Kalisari Sub-district Pasar Rebo District
Abstrak: Many moslem community doing slaughter of qurban animal throughout Eid al-Adha, resulting in the slaughter of qurban animal to occur around mosques, schools, and cluster area. This study aims to evaluate the process of slaughtering animals qurban at the Baitul Muttaqin Mosque, Kalisari Village, Pasar Rebo District, DKI Jakarta. Data analysis based on Body Condition Score (BCS) measurement data and an evaluation of animal qurban slaughter was carried out according to PERMENTAN114/2014. The suitability of the implementation of slaughtering qurban animals at the Jami Baitul Muttaqin Mosque based on PERMENTAN Guidelines 114/2014 includes the process of receiving and resting area by 33.3%, location and means of slaughtering 44,4%, antemortem inspection 0%, human resources 100%, slaughter processing 50%, skinning and evisceration process 100%, postmortem inspection 0%, deboning 60%, weighing and packaging 40%, distribution 0% . The percentage of total stages according to the PERMENTAN guideline 114/2014 is 42.7%. Antemortem inspection, postmortem inspection, and distribution process that are not done in the slaughtering process which can cause the slaughter of qurban animals to remain vulnerable to physical, chemical, and biological contamination.
Keyword: qurban animal, sanitation, slaughtering evaluation

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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