Judul: Penggunaan vibratom microslicer dalam preparasi jaringan untuk keperluan analisis dan diagnosis
Abstrak: Penelitian ini bertujuan untuk menjelaskan prosedur penggunaan vibratom Microslicer dalam preparasi jaringan dan membahas perbedaan proses dan Fasilnya dengan metode parafin atau mikrotom. Bahan yang digunakan dalam penelitian ini adalah hati ayam dan kelenjar ludah kambing. Jaringan sampel ditanam dalam gelatin 30% dan dipotong dengan vibratom Microslicer pada ketebalan 15 - 20 µm. Sediaan diwamai dengan Hematoksilin-Eosin (HE) dan Periodic Acid Schiff (PAS), diamati dan dibandingkan dengan sediaan yang sama yang diproses dengan metoda parafin. Pada preparasi jaringan menggunakan gelatin sebagai media penanam, waktu yang dibutuhkan relatif singkat. Pada preparat hasil Microslicer tampak kurang jelas untuk pengamatan struktur sel karena sayatan yang relatif tebal. Pada pewarnaan PAS, intensitas reaksi tampak kuat pada sayatan Microslicer menandakan kandungan bahan karbohidrat yang tinggi. Hasil penelitian menunjukkan bahwa penggunaan Microslicer menghasilkan sediaan yang kurang baik untuk pengamatan struktur, tetapi baik untuk melihat kandungan bahan tertentu yang biasanya hilang atau berkurang pada tahapan prosedur metoda parafin.
Keyword: vibratom microslicer, tissue preparation, cell structure observation

Judul: Karakterisasi standar mikroskopis bahan pakan sumber protein (tepung ikan, bungkil kedelai dan tepung daging dan tulang) sebagai metode alternatif pengujian kualiatas bahan pakan
Abstrak: The purpose of this research was to get standard of physical characteristics of fish meal, soybean meal and meat bone meal (MBM) under the microscope. Feed ingredients were screened with mesh no. 16 (1.180 mm), 30 (0.600 mm) and 50 (0.300 mm) to fractionated its according to particle sizc and cleared by using chloral hydrate solution and the products were observed under compound microscope with 4 X 10 magnification. The parameters observed were physical characteristics of feedstuffs component (colour, size, shape, transparency and surface texture); and the nutrient of component that were used to conclude quality of feedstuffs. The results showed that physical characteristic standard of fish meal consist of meat fish, bone, and scale; soybean meal consist of soybean particle (cotyledon) and hull; and MBM consist of meat, bone, and hair.
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Judul: Truncated Stop Loss as a Optimal Solution of Reinsurance Agreement in One-Period Model
Abstrak: Reinsurance is one of risk management efforts of an insurance company, which is called the cedent. Similar with insurance, reinsurance constitutes the cedent to pay the premium. We consider one-period reinsurance model and derive a rule which minimizes the ruin probability of the cedent for a fixed reinsurance premium. Therefore, it is needed to construct an optimal reinsurance agreement for the cedent. The premium is calculated according to four different principles, i.e. economic, generalized zero-utility, Esscher, and mean-variance principles. Stop loss is a reinsurance contract which protect the insurance company for losses that exceed a certain amount. The result of this research shows that a truncated stop loss is an optimal agreement in the class of all reinsurance contracts with various premiums calculated using above mentioned principles.
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