Judul: nventarisasi dan Identifikasi Tungau pada Cicak di Sekitar dan di Luar Kawasan Industri Tambun Kota Bekasi
Abstrak: Mites are organisms that can be associated with animals. Mites usually live as ectoparasites in gecko lizard. The aim of this study are to inventory, identify of mites and learn about their specificity on gecko that it found in Tambun industrial area, and residential area. Gecko species were found during the captured, e.g. Cosymbotus platyurus, Hemidactylus frenatus, Hemidactylus garnotii and Gehyra mutilata. Mites were preserved using whole mount method. The study found seven species of mites, they were Geckobia sp.1 (G1), Geckobia sp.2 (G2) or Geckobia glebosum, Geckobia sp.4 (G4), Geckobia sp.5 (G5), Geckobia sp.6 (G6), Geckobia sp.10 (G10), and Geckobia sp.14 (G14). Leg chaetotaxy observations indicated that mites G2, G4, and G6 were classified into Geckobia group 1, G10 and G14 as G. gleadoviana, and G5 as Geckobia indica. Mites on gecko dominant at hind limb of the leg; the thigh (37.4%) and the space between the lamella with claws (71.1%).
Keyword: lizard, ectoparasite, Geckobia, Tambun industrial

Judul: Inventarisasi dan Identifikasi Tungau Ektoparasit pada Cicak di Kabupaten Cianjur
Abstrak: Ectoparasite mites are parasitic organisms that live on the surface of the host, sucking the blood or feed on hair, fur, skin, or skin secretions. This research aim to inventarisation and identification of mites ectoparasites on gecko in Cianjur areas. The research was conducted from January 2012 until July 2012. Gecko and mites were collected and preserved in 70% alcohol. Whole mount of the mites was prepared used polyvinyl alcohol media. The result showed that there are three species of gecko (Cosymbotus platyurus, Hemidactylus frenatus, and Gehyra mutilata) was infested by Geckobia mites. There are new seven spesies of Geckobia (G4, G5, G6, G7, G10, G11, and G12). Analysis of the presence of mites done by calculate the value of prevalence (P), the average intensity of infestation (I), and the total intensity (It). The prevalence in C. Platyurus gecko (P = 74.38%) is higher than G. mutilata (P = 50%), and H. frenatus (P = 33.33%), while the average infestation intensity (I) and total intensity (It) is the highest found in G. mutilata (I = 10 and It = 11). Geckobia G4 and Geckobia G10 were found only on C. platyurus; Geckobia G5 and Geckobia G12 were found on C. platyurus and G. mutilata; Geckobia G6 were found on whole infected gecko; Geckobia G7 were found on C. platyurus and H. frenatus; and Geckobia G11 were found on H. frenatus and G. mutilata. So it is concluded that the new seven species mites has not a specific distribution pattern of their hosts.
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Judul: Pervaporasi Alkohol Menggunakan Membran Polistirena-SDS
Abstrak: Polystyrene (PS) membrane with SDS as porogen can be utilized as a filter in alcohol pervaporation process. The membrane was prepared using inversed phase method with PS:SDS:dichloromethane solvent composition were 17:0:83; 17:0.5:82.5; 17:1:82; 17:1.5:81.5; and 17:2:81. Homogenization of mixtures were carried out for 10 and 20 hours and casted on glass plate surface then submerged it into water with temperature of 60 °C. Pervaporation capability was evaluated from flux value and separation factor. The average of water flux values in 20 hours sonication were higher than the values in 10 hours sonication. The highest separation factor was observed in PS membrane with 0.5% SDS concentration and homogenization in 20 hours is 5.23. Application of PS membrane in pervaporation as showed by purities of alcohol value using gas chromatography method revealed that the purities increase from 91.6 to 93.4%. Therefore, certain SDS addition can increase the performance of PS membrane in alcohol purification.
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