Judul: Karakteristik reproduksi Kerbau Lumpur (Bubalus bubalis) dan kualitas pakannya pada ketinggian yang berbeda di Kabupaten Cianjur
Abstrak: Development of Indonesian swamp buffalo productivity is less encouraging. Field of observations results, low productivity of buffalo caused by the relatively low reproductive efficiency. Contributory factor in increasing reproductive efficiency, among other ensure the availability of forage high quality. Buffaloes maintenance, highly dependent on the availability of natural forage, based on low or high plateau, because a traditionally. Height difference led to the availability forage high quality be diffirent, so can affect characteristic in reproductive efficiency. Characteristic observation of reproductive were analyzed by first oestrous, pregnancy period, postpartum unoestrous and body condition score. Buffalo at low and high plateau had characteristics of reproduction was not a different, but in terms of body condition score, buffalo at high plateau of relatively better with supported quality forage more than exemplary, lenght of season with availability, and comfort zone.
Keyword: Bogor Agricultural University (IPB), reproduction buffalo, quality forage, body condition score

Judul: Karakteristik Ukuran Tubuh  Kerbau Rawa di Kabupaten Lebak dan Pandeglang Propinsi Banten
Abstrak: The objectives of this research were to find out information on both body measurement and potencies of swamp buffalo at Cibadak subdistrict in Lebak District and Cisata subdistricts in Pandeglang Districts. Thi research was carried out from September to November, 2008. A total number of swamp buffloes observed were 220 hd both female and male of those from Cibadak and Cisata district were 79 hd and 141 hd respectively. Various body measurement observed were body length, round chest, chest depth, shoulder height and hip height. Mean and standar deviation of individual body measurement of swamp buffalo within location were calculated by descriptive analyses, while mean differences between two location were tested by t-test. The result showed that all body measurement of swamp buffalo in Cisata were very significantly higher (P<0,01) than those in Cibadak Subdistrict. Measurements of both shoulder height and hip height of male buffalo at the age of 1-3 mo in Cisata were significantly higher (P<0,05) than those in Cibadak. Measurements of round chest and chest depth of female buffalo at the ages of 12-15 mo and 2-3 yr in Cisata were higher (P<0,05) than those in Cibadak, while hip heights at the ages of 12-15 mo and >4 yr of female buffalo in Cisata were significantly higher (P<0,05) than those in Cibadak. Generally all body measurements of swamp buffalo, both male and female in Cisata Subdistrict were higher than those in Cibadak Subdistrict. This was supposed due to management feeding in Cisata better than in Cibadak.
Keyword: 

Judul: Nanokristalin Pirit (FeS2) sebagai Material Semikonduktor Fotovoltaik.
Abstrak: Teknologi fotovoltaik adalah suatu proses yang dapat mengubah sinar matahari menjadi energi listrik dengan media semikonduktor. Penggunaan sel surya untuk fotovoltaik hanya dapat mengonversi radiasi matahari menjadi energi listrik kurang dari 20%. Efisiensi akan meningkat ketika material semikonduktor untuk fotovoltaik dibuat menjadi ukuran nano. Pirit merupakan salah satu material semikonduktor fotovoltaik yang memiliki energi pita celah (Eg) dalam kisaran 0.8–0.95 eV. Energi pita celah tersebut terbukti meningkat ketika disintesis dengan metode hidrotermal menggunakan beragam molar [S]:[Fe] pada suhu 200 °C dalam 24 jam. Nilai energi pita celah yang dihasilkan adalah 1.58–2.073 eV. Ukuran nanokristalin pirit yang dihasilkan berada pada kisaran 21.04–58.77 nm menurut data Particle Size Analyzer. Besarnya ukuran nanokristal pirit yang tumbuh kurang dari 50 nm merupakan poin penting untuk aplikasi fotovoltaik.
Keyword: Hidrotermal, fotovoltaik, nanokristal, pirit