Judul: Produksi Plastik Komposit Dari Tepung Ubi Kayu dan Linear Low Density Polyethylene (LLDPE)
Abstrak: The mixing of cassava flour with linear low density polyethylene is one solution to reducing the environmental problem caused by plastics waste. The objectives of this study was to produce plastic composite from cassava flour and LLDPE resins. Composite plastic was made with addition of glycerol as plasticizer and stearic acid as compatibilizer. Thermoplastic cassava flour was made by mixing glycerol by 30 and 40%. Plastic composites was made with plasticised cassava flour and LLDPE resins ratio at 20:80 and 30:70 with the addition of stearic acid by 5 and 7%. The analysis showed that stearic acid at 5 and 7%, respectively had melt flow index of 4.13 and 4.69 g/10 min. Composite pellets with plasticised cassava flour and LLDPE resins ratio at 20:80 and 30:70 each has a specific gravity of 0.916 and 0.941 g/cm3. The best mechanical properties obtained from the formulation with cassava flour and resins at 20:80 with a glycerol concentration of 40% and 5% stearic acid. Plastics from this formulation have md tensile strength of 5.62 MPa and md elongation at 594.27%. Plastic film composite with 40% glycerol has more opaque colors than plastic film composite with 30% glycerol.
Keyword: cassava flour, composite plastic, stearic acid

Judul: Produksi Kantong Plastik Komposit dari Tepung Ubi Kayu dan LLDPE
Abstrak: Composites plastic is plastic which made from synthetic polymer and biopolymer blends with the addition some additives. The purpose of this study was to produce composites plastic bags from linear low density polyethylene (LLDPE) resin and cassava flour with the addition of additives such as water and glycerol as plasticizer and palm fatty acid distillate (PFAD) as compatibilizer. The results showed that the best formulation for the production of plastic bags is LLDPE and cassava flour ratio 7:3 with the addition of glycerol 30% and PFAD 5%. This formulation produced composites plastic which has specific gravity 0.916 and melt flow index 4.45 gram/10 min. Composites plastic film has thickness 250 micron and the texture of its surface is relative smooth. Tensile strength and elongation value of composites plastic film at each orientation is 3.71 MPa and 396.18% for machine direction, 3.06 MPa and 126.29% for transverse direction, and 3.11 MPa and 137.06% for heat sealing. The value of whiteness index, yellowness index and opacity of composites plastic film is 6.36, 16.28 and 18.13.
Keyword: PFAD, LLDPE, glycerol, cassava flour, composites, plastic bag

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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