Judul: Ketahanan Delapan Jenis Produk Kayu Komposit terhadap Serangan Rayap Tanah (Coptotermes curvignathus Holmgren)
Abstrak: Wood composite products are potential products which are able to be utilized for structural and non-structural functions. However, wood composite needs resistant to subterranean termites attack because of the climate condition in Indonesia supporting the growth of these termites. The objective of this research was to analyze the resistance of eight wood composite products against subterranean termite. Wood composite products comprised of a medium density fiberboard with and without PVC coating, laminated veneer lumber (LVL), particleboard, corrugated board, plywood, MDF treated with anti termites, and treated rubberwood. Method used in this research was based on modified JIS K 1571-2004. Resistance class of plywood and medium density fiberboard (MDF) treated with anti-termite were classified into the first resistance class, which the weight losses were classified into 3.47% and 2% respectively. Rubber wood treated with boric acid treatment was classified into the second resistance class, where the weight loss of this product was 6.13%. In addition, LVL and particleboard were classified into the fourth resistance class, where the percentage of weight losses were 12.21% and 12.28% respectively. However, corrugated board, MDF with or without PVC linings were the worst (fifth) resistance class, which their weight losses percentage were 26.97%, 19.92%, and 19.80% respectively.
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Judul: Ketahanan Papan Komposit dari Limbah Kayu dan Karton Gelombang terhadap Serangan Rayap Tanah (Coptotermes curvignathus Holmgren)
Abstrak: This research was designed to determine the level of composite boards resistance against subterranean termites C. curvignathus. The composition of the adhesive between the water-based polymer isocyanate (WBPI) and melamine-formaldehyde (MF) were 1:0, 1:4, 0:1, and paraffin content of 0, 4, 8% based on oven dry particle and corrugated carton. The produced composite boards consisting of three layers. The face and back layers made of corrugated carton waste and the core layer was made of wafer wood waste. The board target density was 0.7 g cm-3. The board was hot pressed at 170 ºC with specific pressure of 25 kgf cm-2, for 12 minutes. The composite boards resistance were tested according to Japanese Standard JIS K 1571:2004. Research results show that B8 type composite board (WBPI-MF were 1:4 and paraffin content of 8%) performed the best result compared to the other types. B8 type composite boards can be determined as the optimum conditions for the composite board production made of wood waste and corrugated carton.
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Judul: Infeksin virus rota pada anak babi
Abstrak: Virus Rota sudah lama diduga sebagai salah satu penyebab diare pada anak babi yang baru dilahirkan. Hal ini diperkuat dengan berhasilnya Mebus dan kawan-kawan mengidentifikasi virus Rota pada kejadian diare yang ter jadi pada anak sapi yang baru dilahirkan. Infeksi virus Rota merupakan hal yang serius, kejadian yang mewabah pernah dilaporkan di Amerika Serikat, Inggris, Kanada dan Australia. Sedangkan kejadian di Indonesia yang dihubungkan dengan infeksi virus Rota belum dilaporkan. Virus Rota termasuk keluarga Reo viridea. Sesuai dengan namanya, virus Rota menyerupai roda (Rota = Wheel), mengandung asam nukleat (nucleid acid) yang berupa asam nukleat ribo (ribo nucleid acid, RNA) dan berserabut ganda (double stranded), tidak mempunyai selubung (envelop atau peplos). Hewan rentan adalah hewan yang berumur sangat muda. Selain menyerang babi, dapat pula menyerang sapi, domba, rusa, anjing, kucing, tikus, kelinci, unggas dan manusia. ...
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