Judul: Bobot, kadar DNA dan RNA ovarium dan uterus Tikus Putih (Rattus norvegicus) umur 21 hari yang diberi ekstrak tempe selama 28 hari
Abstrak: Tempe adalah produk kedelai yang memiliki kandungan fitoestrogen yaitu senyawa mirip estrogen yang berasal dari tumbuhan. Penelitian ini dilakukan untuk mempelajari potensi ekstrak tempe terhadap perkembangan reproduksi tikus betina. Sebanyak 9 ekor tikus betina umur 21 hari dibagi menjadi tiga kelompok, yaitu kelompok kontrol, kelompok perlakuan yang diberi ekstrak tempe 0.25 g per ekor per hari dan 0.5 g per ekor per hari selama 28 hari. Parameter yang diamati meliputi bobot basah, bobot kering, total DNA dan total RNA dari ovarium dan uterus. Pengambilan data dilakukan pada umur 72 hari. Data yang diperoleh dianalisis menggunakan metode uji ANOVA dan dilanjutkan dengan uji Duncan dengan selang kepercayaan 95% (a-0.05). Hasil penelitian pemberian ekstrak tempe menunjukan tidak adanya pengaruh terhadap bobot basah, bobot kering, total kadar DNA dan total kadar RNA ovarium dan uterus….
Keyword: ekstrak tempe, fitoestrogen, ovarium, uterus, total DNA dan RNA, Female rate, Duncan test method, ANOVA test, Fitoestrogen

Judul: Peran Pemberian Ekstrak Tempe terhadap Organ Ovarium dan Uterus Tikus Betina Prapubertas
Abstrak: This research was conducted to study the potential of tempe phytoestrogen to the reproduction performance in female rats (Rattus norvergicus). There were 18 of 21-days old of female rats were divided into two groups, which were control group without given tempe extract and treatment group that has been given the tempe extract with a concentration of 0.25 gr everyday at the the age of 21-days old until 48 days-old. The female rats were sacrificed at the age of 28th, 42nd and 56th days-old to collect the samples of blood, ovarium and uterus. Parameter measured were the rate of estrogen hormone, wet and dry weight, water content, total of DNA and total of RNA. Data were analysed using Independent Samples T-Test method with 95% confidence interval. Result showed the increasing of wet and dry weight of ovarium and uterus in treatment group at the age of 42 days but there was no influence on the total of DNA and RNA of organs.
Keyword: estrogen, ovarium, phytoestrogen, total of DNA and RNA, uterus

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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