Judul: Profil Daya Rekat Dan Kinerja Resin Fenolik: Aplikasi Dalam Teknologi Papan Partikel
Abstrak: Fenol formaldehida (FF) merupakan resin yang terbentuk dari reaksi pengikatan dan kondensasi antara senyawa fenol dengan senyawa formaldehida. Secara terbatas keragaman resin FF mnngkin tergantung pada pemilihan senyawa fenoIik, nisbah molar antara fenolik dengan fonnaldehida, jumlah dan jenis katalis yang digunakan, serta waktu dan suhu reaksi. Resin FF merupakan perekat yang biasa digunakan dalam industri papan partikel sehubungan dengan sifatnya yang lahan cuaca, tahan pakai, dan tahan bahan kimia.
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Judul: Sifat Fisis dan Mekanis Papan Komposit dari Limbah Batang Kelapa Sawit Hasil Perendaman Larutan Perekat Fenol Formaldehida
Abstrak: Batang kelapa sawit (Elaeis guineensis Jacq.) berukuran 6 cm × 1 cm × 120 cm diberi perlakuan perendaman menggunakan larutan perekat fenol formaldehida dengan konsentrasi larutan 15% selama 0, 30, 60, 90, dan 120 menit. Kemudian dipadatkan menggunakan hot press dengan tekanan spesifik 32 kg cm-2 pada suhu 150 oC selama 60 menit. Papan komposit berukuran 30 cm × 30 cm × 1.8 cm yang disusun sebanyak 3 lapis secara tegak lurus antar lapisan dan diberi perekat fenol formaldehida dengan berat labur sebanyak 300 g m-2 kemudian dikempa panas dengan tekanan spesifik 20 kg cm-2 pada suhu 150 oC selama 18 menit. Papan komposit diuji berdasarkan standar JIS A 5908 (2003). Hasil penelitian menunjukkan bahwa perlakuan perendaman menggunakan larutan perekat fenol formaldehida dapat memperbaiki sifat fisis dan mekanis papan komposit secara signifikan. Papan komposit hasil perendaman larutan perekat fenol formaldehida dalam penelitian ini telah memenuhi standar JIS A 5908 (2003) kecuali pada nilai MOE dan MOR tegak lurus serat.
Keyword: batang kelapa sawit, durasi perendaman, fenol formaldehida, papan komposit

Judul: Studies on growth spurt and aging in higher primates
Abstrak: single measurement that best defines the health and nutritional status of children, just as it provides an indirect measurement of the quality of life of an entire population. The pattern of human growth reflects the biocultural evolution of our species. The human pattern of growth and development (ontogeny) appears to differ markedly from patterns of ontogeny in other primate species. Three studies are reported here which deal to the growth and development of human and chimpanzee (Pan troglodytes). These three studies allow us to contrast the phenomena of adolescence growth spurt and female elderly bone loss in chimpanzee and human as chimpanzee is the closest species to humans within extant nonhuman primates. In the first, a cross-sectional study of growth of the body size and somatotype of 363 Javanese girls and 299 Javanese boys aged 4 to 20 years from Magelang Regency, Indonesia was described. In the second, cross-sectional and longitudinal studies in the growth of chimpanzee second metacarpal bone linear dimensions from individuals aged 0 to 43.6 years were used for comparison. While in the third, cross-sectional and longitudinal studies in the growth of chimpanzee body size (body mass and anterior trunk length) and second metacarpal bone mineral content were derived. In measuring the second metacarpal dimensions and mineral content, a total of 568 radiographs of chimpanzee's proximodistal left hands were used. They were taken from 68 females and 49 males aged 0 to 43.62 years old. We applied an image analysis system, Scion Image Release Alpha 4.0.3.2 software for Windows to measure bone linear dimensions and bone mineral content. Humans present complex and sinuous growth curves for both body weight and height. A clear growth spurt could be demonstrated by cross-sectional analysis in our girl subjects at around aged 11.5 years and in our boy subjects at around aged 12.5 years. In longitudinal series, not in cross-sectional, several representative chimpanzees of both sexes showed a pre-adult growth spurt on the body sizes, bone dimensions and bone mineral content. They ranged at age 4.5 to 8.5 years. This underscore the fact that adolescent growth spurt in linear dimension was not a universal feature of anthropoid primate ontogeny. Bone loss is a well established characteristic of human female aging. Based on crosssectional analyses the sequential decline of bone mass in female chimpanzee may be said to be genuine. On the other hand, we found in adulthood through elderly, male chimpanzees show a longer plateau than female chimpanzee, that is, bone mineral content is maintained in male.
Keyword: Javanese children, growth spurt, chimpanzee, second metacarpal bone, bone loss, Higher Primates