Judul: Karakteristik Habitat Larva Anopheles sundaicus dan Kaitannya dengan Malaria di Lokasi Wisata Desa Senggigi Kecamatan Batulayar Kabupaten Lombok Barat
Abstrak: Malaria is caused by Plasmodium parasites that are transmitted by female Anopheles mosquito. The immature stadium takes place on water. Anopheles larval habitats have different characteristics on fresh water and brackish water that are directly related to the soil. Senggigi village is a tourist location which is visited by many foreign and domestic tourists. The ecology of this coastal area is in accordance with the ecological habitat of the Anopheles sundaicus larvae. This exploratory research was conducted to obtain presence information, distribution and characteristics of the habitats and the density of larvae A. sundaicus at Senggigi village of Batulayar District - West Lombok. Two types of larval habitats found in this areas were estuaries and lagoon. The situations in those habitats relatively was exposed direct sunlight. Areal the bottom was sandy mud with some extensive gravel. The water quality had a temperature range between 24,80-28,10oC, salinity 0,00-2,00o/oo and pH of 7,00-8,00 which provided a supportive environment for the proliferation of A. sundaicus larval. The existence of malaria cases, A. sundaicus mosquito, and potentialy habitats were the risk factors of malaria transmission to the local communities and tourists.
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Judul: Beberapa aspek ekologi tempat perindukan Anopheles sundaicus Rodenwaldt dalam kaitannya dengan epidemiologi malaria di desa Labuan Lombok, Lombok Timur
Abstrak: Tujuan penelitian ini adalah untuk mengetahui kondisi Sungai l,egundi dan Sungai Larem yang terletak di Desa Labuan Lombok, sebagai habitat pradewasa Aspek-aspek ekologi yang di teli ti di An. sundaicus. kedua sungai tersebut adalah salinitas, pH dan vegetasi air serta kepadatan populasi nyamuknya. Di Sungai Legundi, basil pengukuran salinitas air di zone A, B dan C antara 1 - 6 permil. Zone A rata-ratanya 5,3 permil, B 1,97 permil dan C 1,63 permil. Hasil pengulmran pH di zone A, B dan C antara 6 - 7. Zone A rata-ratanya 6,50, B 6,87 dan C 7. Vegetasi air yang ads di sungai terse but adalah ganggang Enteromorpha, Cladophora dan rumput Cynodon dactylon. Hasil penangkapan nyamuk Anopheles dengan perangkap "emergence" antara lain An. sundaicus, An. subpictus dan An. vagus dengan total tangkapan 2. I 80, 215 dan 422 nyamuk. Khusus hasil penangkapan An. sundaicus untuk masing-masing zone, rata-rata setiap perangkap/hari adalah zone A 2,65, H J ,81 dan C 1,61 nyamuk. Hasil penangkapan larva Anopheles dengan cidukan didapatkan rata-rata setiap ciduk untuk masing-masing zone adal.ah zone A 21,73, B 14,17 dan C 13,47 jentik. ...
Keyword: Anopheles sundaicus

Judul: Separation of Neodymium from U3Si2/Al Fuel Plate for Burn-Up Determination
Abstrak: Neodymium is a common fission product produced in nuclear fission reactions. Neodymium in this study was chosen as a burn-up indicator for U3Si2/Al fuel element plates because the neodymium isotope is a stable fission product with a fairly high yield. Some procedures were carried out to separate neodymium, starting with the separation of cesium isotopes (137Cs, 134Cs) through the precipitation method, then separation of uranium isotopes (235U, 238U) and plutonium isotopes (239Pu, 238Pu) with Dowex 1x8 ion exchange resin, and separation of neodymium (Nd), samarium (Sm), as well as cerium (Ce) with Dowex 1x4 ion exchange resin. The Cs recovery reached 99.95%. The U and Pu isotopes resulting from the separation are subjected to an electrodeposition process and the weight of each isotope can be measured with an alpha spectrometer. The separation results of Nd from Sm and Ce have been proven using an XRF spectrometer. The neodymium isotopes separation was corrected using the standard addition method, and an average total Nd content of 2.4 ppm was obtained in the PEB U3Si2/Al bottom solution. It is hoped that this separation method can be applied in determining burn-up of nuclear fuel.
Keyword: neodymium, burn-up indicator, U3Si2/Al fuel plate