Judul: Penangkaran Badak Ditinjau dari Segi Penyakit
Abstrak: Perhaps, the Javan Rhino (Rhmocerossondaicus) is the most endangered species among large animals in the world. Only two population of ~t are known in the world: one in Indonesia and another in l'ietnam. None exists in the zoos. The Javan Rh~no'sc aptivityis an alternative conse~vatione ffort to ensure their existence In the world. But it is imperative to give a correct immobilization, stable preparation such as in the natural forest. and also disease monitoring. Medication and preventive medicine for the Javan Rhino are vely important. Some diseases which have been encountered in the zoos are a.0.: helminthiasis. endocarditls, coliform d~arrheah. epat~tsb iliari. abscesses and slun lacerations can result in septicaemia. The sources of diseases In captivity can be some kinds of foods and water, animal keepers, equipment, contaminated place, rats and mice, birds and insects.
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Judul: Sebaran spasial dan model kesesuaian habitat badak jawa (Rhinoceros sondaicus Desmarest, 1822) di Taman Nasional Ujung Kulon
Abstrak: Javan rhino (Rhinoceros sondaicus Desmarest, 1822) is the most critically endangered species (IUCN 2008). Currently, javan rhino distribution is limited to Ujung Kulon National Park (UKNP), Indonesia. Natural disasters, disease, poaching, encroachment and competition are threats to javan rhino population, hence it is necessary to establish pockets of habitats outside the UKNP which should be based on a study of the spatial distribution and habitat selection by the javan rhino in UKNP as actual habitat. Therefore, the main objective of this study was to develop a habitat suitability models based on the utilization distribution by javan rhino in UKNP. The specific objectives are: 1) to determine the utilization distribution and habitat selection index by javan rhino in UKNP, 2) to identify dominant habitat components that determine the presence of javan rhinoceros in UKNP, and 3) to build a habitat suitability model for javan rhino. The study was carried out in Management Section II area of UKNP, Pandeglang District, Banten Province. The results showed that javan rhinos were mostly occupied areas comprised of swampy shrub (w = 2.197) and shrub (w = 2.012), relatively open habitat (w = 4.233), flat slope (w = 1.313) and sloping areas (w = 1.007), lowland (w = 1.346), close to river (w = 1.087), close to road network (w = 1.395), close to coastal beaches (w = 1.862), close to wallowing areas (w = 3.709) and close to rumpang (open area) (w = 3.783). These indicated that javan rhino selected and had preferences for its habitat. The other results found that there were eight components identified to be the crucial for javan rhino habitat and appropriate for spatial modeling of habitat suitability, i.e. distance from the road, distance from the wallow, distance from the river, distance from the beach, distance from the rumpang (open area), slope, elevation and leaf area index. Dominant factor influencing the frequency of the javan rhino are slope, distance from the rumpang, distance from the wallow and distance from the beach (P<0,005; R2 81,4%). Spatial model of habitat suitability result 11% patches of low suitability, 23,7% patches of moderate suitability and 65,2% patches of high suitability. The validity of the model was 88,6%.
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Judul: Karakteristik Piezoelektrik Film LaxSr₁-xTiO3 di atas Substrat TCO
Abstrak: Studi material perovskite SrTiO3 sudah banyak dilakukan dan menunjukkan sifat feroelektrik, piezoelektrik, kuantum paraelektrik dan superkonduktor yang baik. Dengan penambahan dopant La2O3 diduga menambah performa sifat piezo dan karakteristik lainnya. Karakteristik film LaxSr₁-xTiO3 (LST) dengan variasi x= 0, 0.02, 0.04, 0.06 terbentuk pada suhu annealing 550 oC di atas substrat TCO melalui metode (Chemical Solution Deposition) CSD dan spin coating dengan 700 rpm pada kondisi suhu ruang dan tekanan atmosfer standar. Hasil menunjukkan, semakin banyak pendadah La maka nilai ketebalan film, ukuran rerata kristalit, parameter kisi, transmitansi, nilai konduktivitas (maksimum 589.7 S/cm pada sampel x=0.04 di frekuensi 10 Hz), nilai konstanta tegangan (c) dan muatan (d) piezo semakin meningkat. Dinamika bentuk grafik nilai tegangan (V) dan konstanta regangan mekanik (s) nampak mirip. Nilai V mencapai 0.127 V untuk x=0.06 (beban 50 g). Nilai maksimum c, d, s masing-masing mencapai 20.07 Vm/N, 1.14x10-8 C/N, 13642.71. Nilai band gap untuk x=0, 0.02, 0.04, 0.06 masing-masing 3.21 eV, 3.1 eV, 2.6 eV, 2.4 eV. La2O3 menambah performa sifat piezo, sehingga LST berpotensi sebagai sensor tekanan.
Keyword: CSD method, La2O3, LaxSr1-xTiO3, piezoelectric, TCO