Judul: Indeks Kondisi Bangunan dan Sisa Masa Pakai Kayu Komponen Rumah Tinggal Sederhana
Abstrak: The objective of this research was to understand the performances of the buildings and the remaining service lifetime of wood which have been used as components of low cost house, where it was at Alam Sinar Sari Residence Complex in Jl.Delima E213 Cibeureum Darmaga, Bogor. Materials used of this research were the rafters and battens which suffered the most severe degradation to both of these components. All building components were surveyed and assessed these performances. Then, creep testing, physical testing, and mechanical testing of the samples of the house are utilized to estimate the wood life service remain of the house, using the reducing of the estimation model. assessment result of the house performance was two different performances, which were respectively the front and the back of the house due to the time differences as building. The value of robustness from the front which has built on 1996 was 67.6 %, while the back which has built on 2002 the value of robustness was 80.2 %. Wood identification showed the front using Saninten wood (Castanopsis sp.) as battens and Kamper wood (Dryobalanops sp.) as rafters. In other hand, the back of the house using Bentawas wood (Wrightia sp.) as battens and Meranti wood (Shorea sp.) as rafters. Based on the calculation result of the life service remain of wood towards batten and rafter framers of the roof structure, it could be understood that the remaining service lifetime of the front and the back were securely used in 3 years and in 5 years, respectively.
Keyword: rafters, low cost housing, life service, building performance, battens

Judul: Visual Grading of Three Traditional Building in Aceh Province
Abstrak: Bangunan tradisional umumnya menggunakan kayu sebagai bahan baku bangunan. Penggunaan kayu sebagai bahan bangunan membuat bangunan rentan mengalami deteriorasi. Penelitian ini bertujuan untuk mengevaluasi kondisi visual dan menduga keandalan 3 (tiga) bangunan tradisional di Provinsi Aceh. Identifikasi visual dilakukan pada komponen bangunan atap, dinding, kolom, dinding, pintu dan jendela, serta pondasi atau lantai. Identifikasi meliputi jenis kerusakan yang terjadi pada tiap komponen dan keberadaan organisme perusak. Hasil identifikasi visual menunjukkan jenis kerusakan komponen bangunan umumnya disebabkan oleh cacat berupa retak dan mata kayu. Faktor perusak yang ditemukan berupa jamur pewarna dan rayap. Hasil analisi nilai keandalan dari bangunan tradisional Rumah Maru sebesar 52%, Rumah Rungko 45%, dan Rumah Cut Nyak Dien 72%. Jenis kayu yang digunakan pada Rumah Maru adalah jenis merawan (Hopea sp.), pada Rumah Rungko adalah jenis atedwe (Crataeva sp.), dan pada Rumah Cut Nyak Dien adalah jenis balau (Shorea sp.). Nilai kadar air rerata yang diperoleh masing-masing jenis kayu adalah sebesar 11.64%, 16.47%, dan 15.73%. Nilai rerata BJ dan kerapatan masing-masing jenis kayu yang digunakan sebesar 0.91 dan 1.01 g/cm3, 0.52 dan 0.61 g/cm3, 0.75 dan 0.87 g/cm3. Rumah Maru dan Rumah Rungko masuk kategori rusak ringan, bangunan mengalami kerusakan umumnya pada bagian non struktural, sedangkan Rumah Cut Nyak Dien masuk dalam kategori sedang, bangunan masih berfungsi tanpa adanya pemeliharaan rutin., Traditional buildings generally use wood as a building material. The use of wood as a building material makes buildings easy to be deteriorating. This study aimed to evaluate the visual conditions and estimate the reliability of 3 (three) traditional buildings in Aceh Province. Visual identification was carried out on building components comprising roofs, walls, columns, doors and windows, and base or floors. Identification included the type of damage that has occurred to each component and the presence of destructive organisms. The results of visual identification show the main defects found were cheks/shakes and knots. The deteriorating factors that were found were staining fungi and termite. The reliability value of the traditional buildings of Maru House was 52%, Rungko House 45%, and Cut Nyak Dien House 72%. The wood species used in the Maru House was merawan (Hopea sp.), Rungko House atedwe (Crataeva sp.), and t Cut Nyak Dien House balau (Shorea sp.) wood. The average moisture content value was obtained by each wood species was 11.64%, 16.47%, and 15.73%, respectively. Meanwhile, the mean value of SG and density were 0.91 and 1.01 g/cm3, 0.52 and 0.61 g/cm3, 0.75 and 0.87 g/cm3, respectively Maru's house and Rungko's house were in the lightly damaged category, where the buildings were generally damaged in non-structural parts. Meanwhile, the Cut Nyak Dien House was included in the medium category where the building is still functioning without routine maintenance.
Keyword: building reliability, physical properties, traditional houses, visual identification

Judul: Karakterisasi molekuler virus gemini asal tanaman tomat
Abstrak: Virus gemini merupakan salah satu kelompok patogen utama yang menyerang dan menimbulkan kerusakan yang besar pada tanaman sayuran di daerah tropik dan sub tropik. Pada umumnya kerugian yang ditimbulkan oleh adanya suatu epidemi berkisar antara 30%-100%. Gejala tanaman tomat yang terinfeksi oleh virus gemini kadangkala mirip dengan gejala yang disebabkan oleh infeksi virus yang lain khususnya Potyviridae dan Tobamoviridae. Dengan demikian, gejala penyakit saja tidak cukup untuk digunakan dalam mengidentifikasi virus gemini. Pengetahuan tentang karakter molekuler virus gemini pada tanaman tomat yang bergejala menjadi sangat penting dalam mengidentifikasi virus gemini tersebut. Penelitian ini bertujuan untuk mengamati gejala luar, melakukan purifikasi dan mempelajari beberapa karakter molekuler virus gemini asal tanaman virus tomat. Karakter molekuler yang dipelajari meliputi ukuran dan jenis asam nukleat serta ukuran protein. Deteksi virus dengan metode polymerase chain reaction (PCR) dilakukan untuk memperkuat hasil analisis karakter molekuler. Isolat virus gemini asal tanaman tomat yang diperoleh dari Bandung, Jawa Barat ditularkan dengan serangga vektor B. tanaman tomat. daerah tabaci dari dan ke Gejala yang ditimbulkannya berupa penebalan tulang daun permukaan bawah, daun menggulung ke atas atau ke bawah, berkeriput dan tepi daun mengalami klorosis. Virus gemini isolat Bandung ini berhasil dimurnikan dari daun tomat yang bergejala dengan menggunakan metode yang digunakan ..dst
Keyword: virus gemini, tanaman tomat, purifikasi virus, isolasi tanaman