Judul: Hubungan Penyusutan Luas Permukaan Terhadap Karakteristik Pengeringan Lapisan Tipis Singkong (Manihot esculenta Crantz)
Abstrak: This study presents the thin layer drying of cassava sliced, which was conducted under controlled conditions of temperature and relative humidity (RH). The drying experiments were carried out on a laboratory dryer at temperatures from 40 to 70 °C and RH from 30 to 60 %. The drying process took place in the falling rate period, but the constant rate period was only on 50 °C with 60 % RH in short time. Drying curves from the experimental data were fitted to the different semi theoretical and empirical thin layer drying models. All of the models were investigated by comparing the coefficient of determination (R2), reduced chi-square (χ2) and root mean square error (RMSE) between the observed and the predicted moisture ratios. The Page model was the best to describe the drying characteristics of cassava slices based on this experiment. The shrinkage during drying played an important role to indicate the best quality of the dried product. Image acquisition system was used to capture and to process the changes in shape (area) of the dried products. It consists of a webcam, illumination, computer hardware, and software. The area of cassava slices was found to be decreasing in line with the decreasing moisture content almost linearly. Drying conditions, i.e. temperature and RH might affect the shrinkage but needs further study to find the relationship.
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Judul: The relationship of  shrinkage with thin layer drying characteristics of  Curcuma xanthorriza Roxb simplicia
Abstrak: Experiments were undertaken to study the relationship of shrinkage with thin layer drying characteristics of Curcuma xanthorrhiza Roxb simplicia. In order to estimate and select a suitable drying curve, three different thin layer drying models were fitted to experimental data. Experiment were performed at the air temperature of 50, 60, and 70 ⁰C with relative humidity ranging from 30 to 50%. At each performed level, velocity of drying was adjusted 0.8-0.9 m/s. All of model were investigated by comparing the coefficient of determination (R2), root mean square error (RMSE), and chi square (χ2). Among all the selected drying models, the Page model was found as the best mathematical model for describing the characteristics of ginger simplicia, where the shrinkage of Curcuma linearly decreased with a reduction of the moisture content and increased of temperature.
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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