Judul: Efek Paparan Insektisida Deltametrin Pada Kerbau  Terhadap Angka Gigitan Nyamuk Anopheles vagus pada Manusia
Abstrak: Study was carried out to observe the effect of deltamethrin insecticide application against the biting activity of Anopheles vagus, on human being at Cikarawang, Bogor, since September to November 2004. Insecticide (deltamethrin) was used as lotion and rubbed over the buffaloes body followed by observation the biting activity of mosquitoes (with emphasize on Anopheles mosquitoes group) indoor and outdoor as well. The efficacy of delthamethrin against the Anopheles mosquitoes was observed on the buffaloes prior of trials. Eigth species of Anopheles was collected namely, A. vagus, A. indefinitus, A.aconitus, A.nigerimus, A. annularis, A. barbirostris, dan A. tesselatus. A. vagus is dominant and collected for 743 (84,82 %) over the all collections. The protection period of deltamethrin on the body of buffaloes reached out of 95 % for only 3 days. The protection on the humans body was only observed for Anopheles vagus. Utilization of systemic insecticides on the buffaloes should be attempted to gain the optimal results, in protecting the mosquitoes biting activity.
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Judul: Kombinasi Zooprofilaksis dan Pembaluran Insektisida Deltametrin pada Ternak Sapi Sebagai Upaya Pengendalian Vektor Malaria.
Abstrak: Pemanfaatan hewan ternak untuk mengalihkan gigitan nyamuk Anopheles dari manusia ke hewan dikenal dengan istilah zooprofilaksis. Tetapi zooprofilaksis mempunyai dampak ganda. Keberadaan hewan ternak di satu sisi mampu untuk mengalihkan gigitan nyamuk dari manusia ke hewan, dan di sisi lain menyediakan sumber darah untuk menjaga kelangsungan hidup nyamuk. Darah mamalia dibutuhkan nyamuk sebagai sumber protein bagi perkembangan reproduksinya Penelitian ini bertujuan mengukur pengaruh aplikasi zooprofilaksis yang dikombinasikan dengan pembaluran insektisida residual deltametrin pada sapi terhadap angka gigitan nyamuk Anopheles. Lokasi penelitian ini Desa Hanura Kecamatan Padang Cermin Kabupaten Pesawaran Provinsi Lampung yang merupakan daerah endemis malaria tinggi. Penelitian dilaksanakan pada bulan Februari sampai dengan April 2012 menggunakan umpan hewan sapi yang telah dibalurkan dengan insektisida deltametrin. Selanjutnya hewan sapi di pasang antara rumah dengan tempat perindukan nyamuk (lagoon), dengan maksud sebagai penghalang supaya nyamuk Anopheles tidak mendatangi pemukiman. Pengukuran lama residu insektisida yang dibalurkan ke badan sapi dilakukan dengan metode cone test. Pengukuran kepadatan nyamuk Anopheles pada manusia diperoleh dari hasil landing collection malam hari selama 12 jam (pukul 18.00 – 06.00), sedangkan pengukuran kepadatan pada sapi dilakukan dengan menangkap nyamuk yang hinggap di dalam kelambu perangkap (magoon).
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Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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