Judul: Fenomena Alkalinuria Dan Hipostenuria Pada Kelompok Ternak Domba Garut Di Balai Pengembangan Perbibitan Ternak Domba Margawati Garut
Abstrak: Domba Garut adalah jenis ternak yang populer di kalangan peternak dan pembudidaya di Jawa Barat. Walaupun demikian masih sedikit informasi mengenai status kesehatan domba Garut terutama data mengenai profil urinalisis. Untuk mendapatkan informasi tersebut maka dilakukan kajian lapang menggunakan uji strip urin yang bersifat semi-kuantitatif dan ditunjang oleh pemeriksaan membran mukosa mulut, capillary refill time (CRT), dan pemeriksaan suhu rektal yang menggambarkan kondisi fisiologis dari 80 ekor domba. Kasus alkalinuria telah ditemukan sebanyak 96% dari total 80 sampel urin yang ada. Hanya terjadi 2 kasus negatif alkalinuria pada domba anakan jantan dan domba betina flushing. Hasil pemeriksaan menunjukkan 34 (42.5%) kasus hipostenuria menyebar di setiap rentang pada suhu normal. Meski demikian terdapat 12.5% kasus hipostenuria ditemukan pada domba dengan suhu di bawah normal, yaitu 4 (5%) kasus pada domba pejantan dan 6 (7,5%) kasus pada domba betina laktasi. Dapat ditarik kesimpulan bahwa kejadian alkalinuria terjadi pada setiap fase reproduksi dan umur serta tidak terdapat korelasi antara suhu tubuh dan fenomena hipostenuria pada domba Garut.
Keyword: domba Garut, urinalisis, alkalinuria, hipostenuria

Judul: Fenomena Proteinuria Berdasarkan Kelompok Ternak Domba Garut di BPPTD Margawati Kabupaten Garut.
Abstrak: Garut sheep is unique sheep at Pasundan region of West Java and has special quality in reproductivity, carcass, and fighter performance. Nevertheless there is not enough information concerning their health status especially their urinalysis profile based on physiological state. For this purpose, we did explorative study on body temperature and semi-quantitative strip test in 80 animals at BPPTD Margawati. The result showed that all animals has proteinuria but in different number, there are: 7 for lamb males; 5 for null-para females; 4 for lamb females; 4 for lactation ewes; 3 for rams; 1 for each null-para male, pregnancy, and flushing. The result showed that all animals in normal range of body temperature (38.9– 40.5 °C) and tend to be decreased among adult garut sheep. There is one ram which proteinuria found with hematuria and nitrituria.
Keyword: garut sheep, proteinuria, urinalysis

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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