Judul: Kajian Toksikopatologi Pemberian Ekstrak Etanol Daun kelor (Moringa oleifera Lamk) pada Mencit (Mus musculus).
Abstrak: Penelitian ini dilakukan untuk melengkapi data penelitian mengenai manfaat daun kelor dibidang kedokteran yakni mengetahui efek patologi dari pemberian ekstrak etanol daun kelor (Moringa oleifera Lamk) pada mencit (Mus musculus) yang digunakan untuk penentuan LD,. Pemberian ekstrak dilakukan secara intra peritoneal dan pengamatan LD50 dilakukan selama 24 jam.
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Judul: Kajian Toksikopatologi Ekstrak Eter Daun Kelor (Moringa oleifera Lamk.) pada Mencit Putih (Mus musculus albinus)
Abstrak: The purpose of this study is to examine the loxicopathological effect of ether extract MOrin,a oleikra Lamk. Leaf were given to mice orally for j consecutive cWys. The toxicopathological study was conducted based on the gross and histopatological lesion of lhe internal organ include brain, lungs, heart, stomach, intestine, spleen and kidney. Twenty DDY strain mice, male, age 2 to 3 months old with 18-30 grams weight were devided into four groups. There were the control groups and 3 treatment groups which received 2,5%, 5%, 10% LD50 (Lethality Dose 50) dose ~f ether extract Moringa oleifera Lamk. The LD50 dosein mice was obtainedfrom the previous study accounledfor 16,89 grl kg body weight. Gross lesion only observed within liVer of group IV mice which showed black spot.'i. Histopathologically in group IV, there were mild congestion in brain, necrosis within liver, protein deposition in tubules and glomerular, goblet cell of bronchiole epithelium increased1n group III there were protein deposition in tubules and glomerular. There were no Significantly difference among the groups in the heart, stomach, intestine and spleen microscopical lessiom. The study concluded that 10% W50 of ether extract of Moringa ole/rera Lamk. leaf had toxic effect to the liver, kidney, lungs and cerebrom. Five percent of W50 dose of Moringa oleifera Lamk. give a loxical effect to the kidney, while the dose of 2,5 % LD50 was seem to be a save concentration for consumption.
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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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