Judul: Pengaruh Penggunaan Serat Buah Bintaro (Cerbera manghas) terhadap Sifat Mekanik Beton
Abstrak: Sea mango (Cerbera manghas) known as bintaro in Indonesia is not a popular seed fruit in everyday use. Since people don’t see its benefit, so it has no economic value. The objectives of this research are to calcute the compressive strength and flexural strength from the fiber reinforced concrete with different content variation, analyze the effect of using sea mango as a fiber to concrete, and to determine the best proportion to make a fiber reinforced concrete with sea mango fiber. There are several procedures in this research which are fiber-preparation, aggregates analyzing, calculating the proportion of materials, mixing, and sample-testing. There are 4 variation of fiber’s amount in this research which are 0, 25, 50, and 75 gram from sand’s proportion. The best proportion of sea mango fiber to make a fiber reinforced force in this research is 50 gram. The compressive strength values on concrete which consist of 50 gram amount of sea mango fiber on the 28th day is 13,48 MPa. The flexural strength values on concrete which consist of 50 gram amount of sea mango fiber on the 28th day is 10,67 MPa. Based on these values, sea mango fiber decreseas the concrete’s compressive strength but increases the flexural strength.
Keyword: Bogor Agricultural University (IPB), Sea Mango, Flexural Strength, Fiber, Concrete, Compressive Strength

Judul: Pembuatan dan Uji Karakteristik Papan Partikel dari Serat Buah Bintaro (Cerbera manghas)
Abstrak: Bintaro is a drupe fruit, that consists of three layers, namely epicarp (exterior), mesocarp (middle layer), and endocarp (seed grain leather). Physically, bintaro fibers as same as coconut fibers. Before this, this fruit has not been widely utilized, so it still has low economic value. The existence of the lignocellulosic content in the fiber of bintaro potential to used as raw material for particle board. This study aims to determine the physical and mechanical properties of particle boards and the effect of variation in levels of particle board adhesive to the qualities. The type of adhesive agent that used in thes studyis phenol formaldehyde adhesive (10% and 12%)and target of density is 0.7 g/cm3. To determine the feasibility of particle board made from bintaro fiber, performed some tests according to JIS A 5908: 2003 standard about particleboards. Any parameters that tested according to the standard is the physical properties and mechanical properties. The results of test for particle board using phenol formaldehyde adhesives showed that Modulus of elasticity (MOE) and thickness swelling after immersion properties does not meet requirements in the standards of JIS A 5908: 2003 for its use in industrial. So, it still needs any treatment to improve the MOE and decrease the thickness swelling after immersion properties of the particle board. A higher levels of adhesive which added to the particle board will increase the mechanical properties, on the other hands, physical properties would decrease in lower levels of adhesive.
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Judul: Infectious laryngo tracheitis pada unggas
Abstrak: Infectious Laryngo Tracheitis merupakan penyakit pada unggas yang disebabkan oleh virus yang mempunyai sasaran saluran pernapasan bagian atas Penyebab penyakit Infectious Laryngo Tracheitis Univers (ILT) adalah virus yang termasuk kelompok virus Herpes sering disebut Tarpeia avium. Virus tersebut tersusun dari inti asam deoksi ribonukleat yang dilengkapi dengan pembung- kus yang merupakan derivat dari lemak serta mempunyai garis tengah antara 195-250 nano meter. Pada temperatur kamar virus tersebut dapat bertahan selama 15 hari dalam keadaan tanpa pengawetan. Virus penyebab Infectious Laryngo Tracheitis mempunyai kepekaan terhadap zat kimia golongan pelarut lemak seperti: phenol dan kresol. Induk semang definitip penyakit Infectious Laryngo Tracheitis adalah ayam, tetapi burung merak, itik dan kalkun pernah dilaporkan dapat terinfeksi. Mammalia dan golongan rodensia merupakan hewan yang tahan terhadap infeksi penyakit ini. Pada manusia penyakit Infectious Laryngo Tracheitis diduga mempunyai hubungan dengan timbulnya gangguan neuralgia yang bersifat sub-akut akibat infeksi virus Herpes jenis lain yang disebut virus Sub-acute Myelo Optico Neuropathi (virus SMON).
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