Judul: Studi Keanekaragaman dan Penyebaran Spasial Palem-Paleman (Arecaceae) di Hutan Lindung Gunung Slamet, Baturaden – Provinsi Jawa Tengah
Abstrak: Palm is one of interesting plant. It has been used for several needs and also a trading commodity. One of palms habitat is in Protected Forest of Mount Slamet. The threat of land conversion and forest fires is a problem in this area. The lack of information on the diversity, abundance and the distribution of palms make this area vulnerable and increated the possibility of unknown palms to go extinct. The purpose of the research is to describe the composition, diversity and the ecological distribution of palms and also analyzing the distribution of palms based on land and altitude. Research was conducted on May until June 2012, on two type of ecosystems natural forest and mix forest at Protected Forests of Mount Slamet. Data were collected using vegetation analysis method. Data of the palms were analyzed to obtain value of diversity, evenness and abundance of species. Spatial distribution Data were obtained from recording palms position. Thematic map of land and altitude was developed on processing the landsat map and divided them to different classes. Then, it was overlayed with palms point of occurence to produce a map of palms distribution based on land and altitude. Composition of palms on Protected Forests of Mount Slamet, on natural forest ecosystem found 12 species, and on mix forest ecosystem found 6 species. Distribution pattern of palms is clumped. The higest diversity of palms occurs on natural forest at 1.200 mdpl-1.300 mdpl with elevation 8-15 %, and mix forest at 900-1.000 mdpl with elevation 8-15%.
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Judul: Keanekaragaman hayati jenis palem non rotan di areal kerja HPH PT. Intimpura Timber, Co. Kabupaten Sorong - Propinsi Irian Jaya
Abstrak: Palmae (Palem) merupakan salah satu dari tiga famili tumbuhan yang penting bagi kehidupan manusia dan dengan jumlah jenis yang banyak selain Leguminosae dan Graminae (Harlow, 1991). Irian Jaya sebagai salah satu pulau besar di Indonesia dengan luas hutan sekitar 92% dari luas daratannya, sudah pasti menyimpan sumberdaya tumbuhan yang sangat banyak jumlahnya tidak terkecuali Palem. Palem sangat menarik untuk dipelajari karena bukan hanya karena keindahan bentuk dan kegunaannya yang beraneka ragam. Peranan Palem dimasa datang akan semakin penting selaras dengan penganekaragaman berbagai sumber bahan untuk memenuhi kebutuhan manusia. Sementara itu dari waktu ke waktu erosi plasma nutfah yang terjadi, akibat dari pemanfaatan hutan akan membawa pengaruh dengan kekhawatiran jenis-jenis alami akan hilang. Tujuan Penelitian ini adalah untuk mengetahui jenis-jenis Palem non Rotan yang terdapat di areal HPH PT. Intimpura Timber Co. Sorong Irian Jaya, serta membuat kunci determinasinya dan mengetahui komposisi vegetasi hutan di areal HPH tersebut. Penelitian dilakukan di wilayah kerja HPH PT. Intimpura Timber Co. Sorong dengan lokasi contoh di Kawasan Pelestarian Plasma Nutfah (KPPN) dan di Areal Bekas Tebangan (ABT) I tahun dan dilakukan selama 2 bulan. Metode penelitian yang dilakukan berupa (1) Eksplorasi Jenis Palem. (2) Analisis Vegetasi, (3) Pembuatan Koleksi Herbarium, (4) Pertelaan Jenis. (5) Pembuatan Kunci Determinasi. Eksplorasi Jenis Palem dilakukan untuk mencari keanekaragaman hayati dan mengamati bentuk morfologi dari jenis Palem yang terdapat di areal tersebut. kemudian mengambil contoh herbarium serta dibuat foto vegetasinya.
Keyword: palem

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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