Judul: Studi Perilaku Mengisap Darah, Anopheles spp Di Desa Segara Kembang Kecamatan Lengkiti, Kabupaten Ogan Komering Ulu Sumatera Selatan
Abstrak: Malaria is endemic in South Sumatera, Indonesia, nowdays, it still has many cases on District of Ogan Komering Mu. The aims of study were to find out the habit of Anopheles spp mosquitoes such as their preferences of host, the rythm and frsquencics of blood sucbg either indm or outdoor in relation to daily weather conditions. The human dwellings as site of mosquitoes collection were selected by purposive sampling with consideration that still have many malaria cases within the months. Four methods were used namely indoor human bait, outdoor human bait, animal bait (magoon trap) and window trap. The result showed that Anopheles collected at in door were 5 species namely A. aconitus, A. annutaris, A. &hi, A. scIncefieri and A. vagur. At outdoor were 7 species namely A. aconifus, A.unnularis, A. barbirostris, A. hchi, A. nigerrimus, A. schuefieri drm A. vagus, The fluctuation population of A. acortitus was in accordance with either increasing or h a s i n g of rainfall.
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Judul: Keragaman jenis dan karakteristik habitat Anopheles di Desa Datar Luas, Krueng Sabee, Aceh Jaya, Provinsi Aceh
Abstrak: Datar Luas village was one of villages in Krueng Sabee subdistrict at Aceh Jaya Regency known as malaria endemic area. This village has API (Annual Parasite Incidence) value on 2010- 2011 were 127,1% and 2.27%. The aims of this research are to study the diversity, density and behaviour of Anopheles as malaria vector, mapping its larvae habitat, and to measure the knowledge, attitudes and practices of the community at Datar Luas Village. This research was conducted from October 2012 to January 2013. Mosquitoes trapping was done by human landing and resting collection technique inside and outside the house from 06.00 p.m to 06.00 a.m WIB. In addition, larvae were collected and the coordinates of potential larva habitats were marked. Characteristic of habitats potential breeding, observed covering of habitats this water temperature, salinity water, pH water, water turbidity, water flow, broad habitats, the depth of habitats, basic of habitats, aquatic plant, predatory larvae and select the coordinate point for mapping a kind of habitats of an Anopheles larvae spp with by using a Garmin GPS 60. Furthermore, it was also conducted a survey of knowledge, attitudes and practices of the community by using questionnaire. There were thirteen spesies of Anopheles, which were An. kochi, An. barbirostris, An. minimus, An. maculatus, An. letifer, An. teselatus, An. sinensis, An. vagus, An. separatus, An. sundaicus, An. subpictus, and 2 spesies (An. aconitus and An. barumbrosus) were found in their larvae habitat. An. kochi was found biting outdoor (eksofagik) as well as having resting behavior outdoor (eksofilik). This mosquito species was 45,9% as the highest relative abundance. An. kochi that often come into contact with people with a total man hour density (MHD) 0,22 (mosquito/people/hours). The highest blood feed activity of An. kochi happened on 00.00-01.00 a.m WIB. A habitat of potential of an Anopheles larvae spp was found total of 22 habitats are comprised of six types that was in the pond, rain puddle, marshes, moats, old well, and former tire tread. Anopheles larvae were found on four types of habitat comprised which An. letifer was found in pond with a density of 0.10 larvae/dipper, An. barumbrosus and An. kochi were in rain puddles with a density of 0.20 larvae/dipper, An. kochi, An. aconitus, An. vagus were in the marshes with a density of 0.20 larvae/dipper, and An. separatus was in old well with a density of 0.10 larvae/dipper. Distribution of the population employment in the rural of Datar Luas village was dominated by 81,2% gold miners, followed by 12,5% freelancers, and small portion (3,1%) as official goverment. People which work in dominance as gold miners have activities outdoor in the middle of the night increases the risk of exposure to malaria.
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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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