Judul: Efektifitas Pemberian Infusa Buah Adas (Foeniculum vulgare Mill.) terhadap Peningkatan Kadar Kalsium dan Fosfor Darah Tikus Putih (Rattus norvegicus) Ovariektomi.
Abstrak: Aging is common problem that usual accomplished by every people especially woman. Aging is one of occured when there is a decreasing of estrogen and calcium levels in the body. Adas plants contain the substance similiar to the active estrogen and potential for anti aging. This research was objected to see the effect of adas fruit infusion for enhancing of calcium and phosphor level in the ovariectomy rat’s blood. Twenty five rats were ovariectomized and acclimatizated for 45 days. The rats were divided into five groups with each groups consisted from five rats. First group was Negative Control (KN) with aquadest of 0.5 mg/100 g bb. Second group was positive Control (KP) with etinil estradiol of 0.25 mg/100 g bb. Third groups was Dose One Group (D1) with adas infusion of 73 mg/100 g bb. Fourth group was Dose Three Group (D) with adas infusion 146 mg/100 g bb. Fifth group was Dose Three Group (D3) with adas infusion 292 mg/100 g bb. The treatment was held for fifteen days and in the day sixteen, blood sample was taken. Adas fruit infusion test showed the increasing level of calcium and phosphor on D1, D2, and D3. The result showed that the most effective dose to increase calcium and phosphor level was at D3 with 13.51 mg/dl and 6.56 mg/dl
Keyword: adas, aging, calcium, phosphor, rat

Judul: Efektivitas infusa buah adas (Foeniculum vulgare Mil.) terhadap kadar kalsium (Ca) tulang tikus putih btina ovariektomi.
Abstrak: Fennel (Foeniculum vulgare Mill.) is a herbaceous plant that contains phytoestrogens that have effects similar to estrogen. This study aimed to determine the effectivity of fennel fruit infusion on bone calcium content of ovariectomied rats. This research used 25 female rats Sprague Dawley and the rats were divided into 5 group:(1) negative control group (KN) given distilled water 1 ml; (2) positive control group (KP) given ethinyl estradiol 0.045 mg/100 g body weight; (3) dose group 1 (D1) given fennel fruit infusion 73 mg/100 g body weight; (4) dose group 2 (D2) given fennel fruit infusion 146 mg/100 g body weight; (5) dose group 3 (D3) given fennel fruit infusion 292 mg/100 g body weight. Treatment with distilled water ,ethinyl estradiol and fennel fruit infusion were done for 15 days by oral route. At the end of treatment, the bone (tibia fibula) were then obtained and analyzed for calcium levels using Atomic Absorption Spectrophotometry (AAS) reader. The results showed that the highest dose of infusion fruit fennel (D3) has a higher calcium levels compared with D1 and D2. This result also showed the effectiveness of fennel fruit infusion in increasing bone calcium levels for ovariectomied rats.
Keyword: Calcium, fennel, phytoestrogens

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.
Keyword: