Judul: Effectiveness of thiamethoxam for control of  the  housefly  (musca  domestica)  using  spray method  in  caged-layer  poultry  house
Abstrak: Lalat rumah atau Musca domestica adalah sebagian dari serangga yang paling dikenal dan diketahui tersebar luas di berbagai tempat. Lalat ini umumnya ditemukan pada peternakan ayam petelur. Keberadaan lalat pada peternakan ayam petelur dapat menimbulkan gangguan sanitasi kandang, menularkan penyakit, menurunkan produksi telur, dan mengganggu pekerja. Tiametoksam merupakan insektisida dari golongan neonikotinoid yang diketahui dapat dipakai dalam pengendalian lalat, namun belum banyak digunakan di Indonesia. Penelitian ini bertujuan untuk mengetahui efektivitas tiametoksam sebagai insektisida residual terhadap Musca domestica dengan metode spray di peternakan ayam petelur. Penelitian dilakukan di peternakan ayampetelur KM 45, Kemang, Bogor, dengan membandingkan populasi lalat yang diberi perlakuan tiametoksam terhadap kontrol. Pengukuran populasi dilakukan dengan menggunakan kertas berperekat. Hasil penelitian menunjukkan bahwa tidak ada perbedaan nyata antara populasi lalat yang diberi perlakuan tiametoksam dibandingkan terhadap kontrol, baik dilihat dari jumlah lalat maupun efek residual, The house fly, Musca domesticais one of the best known and most widely distributed insects in human settlements. They are commonly found in poultry farm. The presence of these flies, particularly in large number on layer poultry farm can lead to nuisance of cage sanitation, transmission of disease, reduction in egg production, and workers interference. Thiamethoxam is a neonicotinoid insecticide that effective in the control of flies, but has not been widely used in Indonesia. The aim of this study was to determine the effectiveness of thiamethoxam as residual insecticide against Musca domestica with the spray method in poultry farm. The study was conducted at the KM 45 poultry farm, Kemang, Bogor, by comparing the population of flies in cages which treatedwith Thiamethoxam insecticide toanother cage as controls. Population measurements performed using sticky fly paper. The results showed that there was no significant difference between fly population on control compared to sprayon treatment, in terms of the number of flies and also residual effects
Keyword: thiamethoxam, Musca domestica, effectiveness, residual effect

Judul: Efektivitas insektisida tiametoksam dengan metode paint on terhadap lalat rumah (Musca domestica) di peternakan ayam petelur
Abstrak: Musca domestica is usually the most abundant fly spesies in caged-layer poultry farm. The presence of M. domestica in poultry may cause interference to workers, reduction of egg quality, and may become a mechanical vector insect of several diseases. Nowadays, vector control in public health and farm still by using insecticide. One of the insecticide used in caged-layer poultry house is thiamethoxam. Thiamethoxam is a new neonicotionid insecticides which has not been widely used in Indonesia. This insecticide has a residual effect. This research was intended to study the effectiveness of thiamethoxam as a residual insecticides against M. domestica using the paint on method in caged-layer poultry house. Thiamethoxam painted on polywood board and suspended on the base of caged. The effect of thiamethoxam measured by the flies caught on sticky fly paper to both control and treatment. There was no difference between fly population on control and paint on treatment. The residual effect to M. domestica occurred until 8 weeks after application.
Keyword: Bogor Agricultural University (IPB), thiamethoxam, residual effect, Musca domestica, effectiveness

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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