Judul: Penggunaan Ruang oleh Beruang Madu di Areal Konservasi PT. RAPP Estate Meranti
Abstrak: The malayan sun bear (Helarctos malayanus Raffles 1821) in Indonesia can only be found on the island of Sumatera and Borneo. Malayan sun bear are experiencing populations and habitat threats either caused by natural or humans disturbance. Malayan sun bear that exist in the conservation area of Meranti Estate needs to be efficiently managed so that this species remain sustainable. Conservation efforts need to be supported by scientific information based on the existence and condition of suitable habitat for this species. This research was conducted in Conservation Area of PT. RAPP Meranti Estate, Pelalawan, Riau from June to July 2012. The objectives of this study were to identify the existence and habitat use of sun bear and also to identify dominant habitat components that determine the presence of sun bear. The methods of this study were vegetation analysis, line transect, field observation and drawing the habitat profile. Vegetation analysis were made in two vegetation type that is Tall Pole Forest (TPF) and Transition Forest (TRF). Sixty seven plant species from thirty families were found in TPF. TPF was dominated by Syzygium inophyllum and Madhuca motleyana. Fifty seven plant species from twenty six families were found in TRF. TRF was dominated by Acmena acuminatissima, S. inophyllum, Mangifera griffithii and Blumeodendron tokbrai. The existence of sun bear determined by indirect encounter survey. Habitat use by sun bear was both on TPF and TRF vegetation type. Sun bear only use trees on their daily activity. Average height and diameter at breast height of the trees that used by sun bear was 20 m and 51 cm. Based on factor analysis, the dominant habitat factors that determined the existence of sun bear were vegetation density, canopy cover, the amount of tree and feeding tree individual, the amount of tree and feeding tree species and the distance from production
Keyword: dominant factors, habitat use, malayan sun bear

Judul: Diversity of tree species as sun bear food in conservation area of PT. RAPP Meranti Estate, Riau
Abstrak: Beruang madu termasuk salah satu spesies langka yang ada di Sumatera dan Kalimantan. Areal konservasi PT. RAPP Estate Meranti merupakan habitat beruang madu di Riau, Sumatera. Informasi keanekaragaman jenis pohon pakan beruang madu di areal konservasi PT. RAPP Estate Meranti sampai saat ini belum tersedia. Informasi tersebut dapat dijadikan acuan pengelolaan habitat beruang madu untuk mencegah kurangnya ketersediaan pakan beruang madu.
Keyword: conservation area, distribution pattern, environment factor, tree species as sun bear food

Judul: Pembuatan dan Karakterisasi Lapisan Tipis Copper oxide (CuO) Sebagai Sensor Gas
Abstrak: Lapisan tipis Copper Oxide (CuO) adalah bahan scmikonduktor yang memiliki sirat sangat scnsitif tcrhadap gas. mcngingat bahan tcrscbut sangat mud-ah mcngabsorpsi gas. DCllgan absorpsi gas ini akan l11crubah resistivitas lapisan tipis tersebut. Dalmn pcmbuatan.lapisan (ipis ini, lllclodc yang digunakan adalah metodc Dcposisi Fasa Cair (Liquid Phase Deposition) yaitu dengan mencmnpurkan 100 ml larutan Copper Sulphal (CuSO, 1I2H,O) 1M dengan 50 ml ammonium 25 %, Kemudian dicuplik 6ml dan dimasukkan ke dalam wadall yang telah terisi aquades 60 ml dan substrat pada dindingnya, kemudian diaduk dengan slirier dan dipanasi pada suhu 75°C selama 1 jam, Pendeposisian ini dilakukan sebanyak 4 kali. Hasil karakterisasi XRD memperlihatkan puncak-puncak CuO yaitu berada pada 28 = 35,306; 38,502; 61.475; 65,538 dengan masing-masing d = 2,5400: 2,3362: 1.5071; 1.4231.
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