Judul: Inventarisasi dan Identifikasi Tungau Ektoparasit pada Cicak di Kawasan Taman Margasatwa Ragunan
Abstrak: Gecko interacts with various types of mites, both ectoparasite and endoparasite. Ectoparasite mites are parasitic organisms that live on the surface of its host, sucking the blood or feed on hair, fur, skin, or skin secretions. Many species of gecko were infested by Geckobia. The aim of this research was to inventory, identify, analyze mite’s leg chaetotaxy, calculate the prevalance and intensity of mite infestation, and learn the diversity of ectoparasites mites on gecko in the inside and outside of Taman Margasatwa Ragunan. Mites were prepared by whole mount method using polyvinyl alcohol media. Identification results based on characters of mites found twelve species of Geckobia (G1, G2, G4, G5, G6, G7, G10, G11, G12, G13, G18, and G19). However, based on chaetotaxy, the G2, G4, and G6 were grouped in Geckobia grup 1, G10 in group with G. gleadoviana, G11 in group with G. indica, G13 in group with G. keegani, and G19 in group with G. oedurae. The G1, G5, G7, G12, and G18 in the new group Geckobia. The highest of mite infestation intensity on gecko C. platyurus was mite G4. The highest of mite infestation intensity on gecko H. frenatus was mite G1, and gecko H. garnotii was mite G10. H. garnotii has the largest infestation intensity values.
Keyword: Bogor Agricultural University (IPB), Taman Margasatwa Ragunan, Geckobia, gecko, ectoparasite, chaetotaxy

Judul: Inventarisasi dan Identifikasi Tungau Ektoparasit pada Cicak di Perumahan dan Pasar Kota Tangerang
Abstrak: Every organism interacts with each other such as parasitic mites often find in the gecko (Family: Gekkonidae). Ectoparasite mites can spread in the geckos through sexsual contact and other physical interactions among the geckos.This research were aimed to invent, identify and explore the differences in infestation intensity of ectoparasite mites in gecko collected from the residential and traditional market in the Tangerang City. Geckos sampling were conducted in residentials (Ciledug and Karang Tengah District) and traditional markets (Ciledug and Pinang District) by using road sampling method. Geckos were preserved in alcohol 70%. Ectoparasites mites were taken from the head, ears, armpits, body trunk, groin, tail, fore and hind fingers of the geckos. Mites slides preparation were made with whole mount methode using polivinil alkohol (PVA) media and dried on hot plate for one week at 40oC. The result showed that geckos from residential areas were identified as Cosymbotus platyurus, Hemidactylus frenatus, H. garnotii and Gehyra mutilata, while the geckos from the market were identified as C. platyurus, and H. garnotii. The mites were classified to the Pterygosomatidae Family, Genus Geckobia, namely Geckobia sp 4, Geckobia sp 5, Geckobia sp 6, Geckobia sp 7, Geckobia sp 8, Geckobia sp 9, Geckobia sp 10, and those mites are found to be new species based on the current mites key identification. Geckos from traditional markets showed more infested by the mites than those from the residentials. Geckos H. garnotii had the highest prevalence (100%) both in residentials and markets. The highest total intensity was also found in geckos H. garnotii, those were 17,8 and 15,9 in the residential and in the market, respectively
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Judul: Membran Komposit Polistirena Tersulfonasi–SiO2 untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Nafion® merupakan membran elektrolit pada direct methanol fuel cell (DMFC) yang memiliki nilai permeabilitas metanol yang tinggi. Oleh karena itu, membran alternatif seperti polistirena tersulfonasi (PSS) yang ditambahi SiO2 dikembangkan untuk mengurangi tingginya permeabilitas metanol tersebut. Penelitian ini bertujuan menentukan pengaruh tambahan SiO2 pada kinerja PSS. Keberhasilan proses sulfonasi ditunjukkan oleh nilai derajat sulfonasi (DS) dari PSS dengan konsentrasi PS 15% sebesar 81%. Membran komposit dibuat dengan ragam konsentrasi 3%, 5%, dan 7%. Spektrum inframerah transformasi fourier membran komposit menunjukkan gugus sulfonat (-SO3) pada 1008 cm-1 dan O-Si-O pada 1013 cm-1. Nilai konduktivitas proton dan beda potensial tertinggi dihasilkan pada membran PSS-SiO2 3% dengan nilai berturut-turut 2.1 × 10-4 S/cm dan 79 mV. Berdasarkan hasil tersebut, membran komposit PSS-SiO2 dapat diaplikasikan untuk DMFC.
Keyword: membran komposit, SiO2, polistirena tersulfonasi, sel bahan bakar metanol