Judul: Play Behavior Long-tailed Monkey (Macaea Fascicularis) 1-2 years old (Case Study in Tinjil Island).
Abstrak: Playing is the basic behavior of juveniles which was usually displayed during all day long. This activity was done in order to learn how to grow phisycally to ward maturity phase so that they could adapt in their group. This research was conducted from March to April 2002. Located in Pusat Studi Satwa Primata-Institut Pertanian Bogar (PSSP•IPB) on Tinjil Island. The number of monkey used in this study ware 24 juveniles without consedering sexes. Methods used in observing daily behavior was one-zero and scan samping and ad-libitum sampling for playing behavior. The aims of this study was to access the most preferred of long-tailed monkeys in their nature.
Keyword: 

Judul: Perilaku macaca fascicularis di pulau tinjil
Abstrak: The direction of this observation is to know how the behavioural variables of M. fascicularis (such as resting, travelling, foraging, feeding. the favored of height, diametres, part of trees, interindividual distance, ranging pattern, ranging distance, the kind of food, and its social behaviour). The variables would be compared to some data that had been collected by some scientist (such as Van Schaik et al., 1983; Sugardjito, 1986, etc), with some statistical test methods (such as Wilcoxon's matched-pairs signed-ranks, and Chisquare Goodness-of-Fit). The data will collected by scanning method with 5 minutes intervals and followed a group of the monkeys through the jungle of the island every day, since 05.30 to 18.00. M. fascicularis on Tinjil island used 40.3% of the daily time for resting, 25.7% for traveling, 17.0% for foraging, and 17.0% for feeding. Statistical test showed that it's not quite different from Van Schaik's et al (1983) observational result in Ketambe-Aceh. The height of 10-15m is favored for feeding; but 25-30m for resting: traveling, foraging, and 100cm of trees diametre is favored for traveling and resting; but 50-60cm for fo- raging and feeding.
Keyword: 

Judul: Sintesis kompleks salen Cu/Ni sebagai katalis oksidasi gliserol
Abstrak: Biodiesel sebagai salah satu alternatif pengganti minyak bumi telah menghasilkan produk samping berupa gliserol kasar. Salah satu cara pemanfaatan adalah dengan mengoksidasinya menjadi dihidroksiaseton menggunakan kompleks senyawa salen yang telah dihidrogenasi dengan logam atom pusat Cu dan Ni. Katalis yang dihasilkan dicirikan menggunakan spektrofotometer inframerah transformasi Fourier dan spektrofotometer serapan atom. Kinerja kedua katalis dalam mengoksidasi gliserol telah dibandingkan dengan baik dalam penelitian ini. Oksidasi gliserol dilakukan dengan tambahan katalis sebanyak 5 mol% gliserol dalam campuran gliserol-asetonitril. Reaksi dilakukan dengan melewatkan gas oksigen selama 4 jam pada suhu ruang dalam campuran tersebut. Hasil oksidasi dianalisis menggunakan kromatografi cair kinerja tinggi. Puncak kromatogram dari hasil oksidasi yang muncul setelah menit ke-9 menunjukkan terjadinya perubahan gliserol. Produk oksidasi gliserol diduga memiliki gugus fungsi keton karena nilai Rf-nya lebih besar daripada gliserol, yang menandakan senyawa tersebut lebih nonpolar daripada gliserol. Kromatogram yang diperoleh menunjukkan bahwa aktivitas katalis Cu(salen) mengoksidasi gliserol lebih baik ditinjau dari rendemen produk yang dihasilkan dibandingkan dengan Ni(salen). Oksidasi baik dengan Cu(salen) maupun Ni(salen) menghasilkan satu produk oksidasi.
Keyword: Katalis, Ligan salen, Biodiesel