Judul: Bioekologi Dan Karakteristik Habitat Larva Anopheles Spp. Di Wilayah Kerja Pelabuhan Laut Sinabang Kabupaten Simeulue Provinsi Aceh
Abstrak: Malaria disebabkan oleh Plasmodium sp, dan ditularkan oleh nyamuk Anopheles dari orang yang sakit kepada orang yang sehat melalui gigitannya. Provinsi Aceh terdiri atas 23 kabupaten/kota yang umumnya merupakan daerah endemik malaria. Satu di antaranya adalah Kabupaten Simeulue yang merupakan satu pulau tersendiri di sebelah barat daya Provinsi Aceh. Walaupun API (annual parasite incidence) di Kabupaten Simeulue pada 2014 masih di bawah 10/00 akan tetapi mobilitas penduduk yang keluar dan masuk wilayah ini yang semakin tinggi sehingga memungkinkan akan terjadinya peningkatan kasus malaria. Penelitian ini bertujuan untuk mengetahui bioekologi dan karakteristik habitat larva Anopheles spp di wilayah kerja Pelabuhan Laut Sinabang. Penangkapan nyamuk dilakukan di Desa Lasikin dan Desa Kota Batu dengan metode human landing collection dan resting collection pada April hingga Juni 2015. Penangkapan nyamuk dilakukan pada 4 rumah yang merupakan permukiman penduduk dekat Bandara Lasikin dan Pelabuhan Ferry Kota Batu, pernah dikonfirmasi ada penderita malaria dan dekat dengan habitat potensial larva Anopheles spp. Penangkapan nyamuk dewasa selama empat malam berturut – turut setiap bulannya selama 3 bulan. Pengukuran karakteristik habitat larva Anopheles dilakukan dengan cara mengamati seluruh genangan yang berpotensi menjadi habitat perkembangbiakan Anopheles dengan mengukur faktor fisik (suhu, kekeruhan, arus air, kedalaman air, dan dasar habitat) dan faktor biologis (keberadaan tanaman air dan predator). Hasil penelitian menunjukkan bahwa terdapat 5 spesies nyamuk yaitu An. vagus, An. tesselatus, An. barbirostris, An. kochi dan An. indefinitus. An. vagus dan An. tesselatus merupakan spesies yang dominan di kedua desa. Angka kepadatan Anopheles menggigit di dalam rumah dan di luar rumah per orang setiap jam (man hour density/MHD) di Desa Lasikin masing-masing untuk An. vagus adalah 0.94 dan An. tesselatus 0.67. Adapun di Desa Kota Batu, An. vagus 0.58, An. tesselatus 0.36, An. indefinitus 0.17, An. barbirostris 0.13 dan An. kochi 0.09. Aktivitas Anopheles di Desa Lasikin dan Desa Kota Batu lebih banyak di luar rumah dari pada di dalam rumah, sedangkan An. indefinitus hanya ditemukan menghisap darah di dalam rumah di Desa Kota Batu. Di kedua desa ditemukan sebanyak 102 habitat potensial perkembanganbiakan Anopheles dan 22 (21%) habitat di antaranya ditemukan larva Anopheles. Habitat larva An. vagus ditemukan pada genangan air bekas tapak kaki hewan, An. indefinitus pada kubangan dan kobakan, sedangkan An. kochi di parit.
Keyword: Anopheles, Karakteristik habitat larva, Malaria, Provinsi Aceh, Simeulue

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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