Judul: Identifikasi Keragaman Gen UTMP Exon 4 Pada Sapi Bali
Abstrak: The bali cattle, one of Indonesian specific animal genetic resource, has many advantage, one of that advantage is high in reproductivity. Uterine Milk Protein (UTMP) gene is expected having an effect on lifes’ productivity related to the characteristic of reproduction and has main function in supporting conception during pregnancy. The aim of this research was to identify the existence of UTMP polymorphisms gene as controller of reproductions characteristic in Bali cattle using the PCR-RFLP (Polymerase Chain Reaction-Restriction Fragment Length Polymorphism). One hundred twenty three blood samples of bali cattle derived from BPTU and BIBD was detected its presence of genetic diversity at UTMP gene using BsrI which restric C|CAGT basic sequences. UTMP gene amplification was performed with temperature of annealing 60 ⁰C. The results of PCR-RFLP analysis indicated that bali cattle have been analysed monomorphic A allele at BPTU and BIBD was 100%. Result of sequence fragment UTMP gene exon 4 was indicate insersi mutation 77 basic until long change sequence it bands 406 base pair.
Keyword: PCR-RFLP, uterine milk protein (UTMP), bali cattle

Judul: Keragaman DNA mikrosatelit lokus HEL9 ILSTS6 dan INRA35 pada Sapi Bali di Pulau Bali dan Nusa Penida
Abstrak: Sapi bali (Bos javanicus) adalah salah satu bangsa sapi asal Indonesia yang merupakan domestikasi dari banteng. Tujuan penelitian ini adalah mengidentifikasi keragaman DNA mikrosatelit pada sapi bali yang berada di Pulau Bali dan Nusa Penida dengan menggunakan lokus (HEL9, ILSTS6, dan INRA35). Sampel yang digunakan sebanyak 95 sampel DNA sapi bali yang diambil dari 48 ekor sapi bali di pulau Bali dan 47 ekor sapi bali di pulau Nusa Penida. Tiga penciri mikrosatelit (HEL9, ILSTS6 dan INRA35) digunakan untuk mengidentifikasi keragaman sapi bali. PCR menggunakan aplikasiGenAlex versi 6.501. Data yang dianalisis berupa jumlah alel (na), alel efektif (ne), frekuensi alel, heterosigositas observasi (Ho), heterosigositas harapan (He), polymorphism information content (PIC), dan uji Amova. Hasil penelitian menunjukkan bahwa rata-rata heterosigositas pada sapi bali yang ada di Pulau Bali lebih tinggi dibandingkan Nusa Penida. Jumlah PIC sapi bali berkisar 0.190-0.666. Ketiga lokus yang diuji terhadap sapi bali di pulau Bali dan Nusa Penida berbeda dari marker, frekuensi alel dan tingkat kekerabatan dengan nilai keragaman sebesar 9%...
Keyword: Bali cattle, Microsatellites, Polymorphism, Polymerase chain reaction, DNA markets, Alel number, Effective allel, Ale, Ho, He, PIC

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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