Judul: Identifikasi Lalat Sumba (Hippobosca sp.) pada Sapi Perah di Kawasan Usaha Peternakan Sapi Perah Cibungbulang Kabupaten Bogor
Abstrak: This research was aimed to identify and to understand the aspect of bioecology of Sumba flies (Hippobosca sp.) at dairy cows in Dairy Farming Area Cibungbulang Bogor District. The research was conducted from May 2011 to April 2012 and performed in three steps, collecting the of ectoparasites, processing specimens, and identification of ectoparasites. The ectoparasites collected were processed by pinning method. Then ectoparasites were identify by using the key method of Soulsby (1982). The result showed that the sumba flies species infested in dairy cows was Hippobosca equina. The pupae of this fly was put in the corner or crevices of the iron pole in the cowshed. Actually H. equina was the species of dry and hot areas, however, its can adapt and breed in wet and humid areas such as Cibungbulang Bogor District.
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Judul: Keragaman Jenis Lalat Pengganggu dan Potensi Permasalahannya pada Ternak Sapi Potong di Bondowoso
Abstrak: The aim of this research was to study the diversity of species and the dominance of filth flies on beef cattle farms in Bondowoso. In addition, this research was to study the risk due to the presence of filth flies on beef cattle farms. The samples were carried out on 14 traditional farms and 1 communal farm. The samples were taken by sweeping net, then it had identified and analyzed to determine the density of flies. Fly density was expressed with relative abundance and species dominance. The diversity of flies in Bondowoso were Haematobia exigua, Stomoxys calcitrans, Musca domestica, Hippobosca variegata, and Tabanus megalops. The most dominant species was Haematobia exigua. The dominance value of Haematobia exigua on traditional farms was 87.88% and 89.27% on communal farm. A lot of fresh cow dungs in those farms influence the number Haematobia exigua because fresh cow dung was a suitable breeding place for these flies. These flies may carry Stephanofilaria, Trypanosoma evansi, and Bacillus anthracis.
Keyword: cattle farm, diseases risk, diversity, filth flies

Judul: Simulasi Persamaan Keadaan Bintang Neutron Menggunakan Persamaan Polytropic dan Modified Gravity
Abstrak: Bintang neutron merupakan fase akhir dari suatu bintang yang berukuran cukup masif ketika telah kehabisan bahan bakarnya. Bintang ini tersusun atas beberapa macam materi penyusun, tetapi lebih didominasi oleh materi neutron terdegenerasi. Pada penelitian ini diperoleh bahwa dengan menggunakan pendekatan relativistic diperoleh jari-jari bintang neutron dengan nilai radius maksimum 32 km, sementara pendekatan nonrelativistic menghasilkan radius yang lebih kecil sebesar 11 km. Efek relativitas dalam hal ini akan meningkatkan nilai massa dan jari-jari bintang neutron. Pada variasi tekanan pusat, semakin besar tekanan pusat bintang neutron akan meningkatkan nilai massa dan mengecilkan nilai jari-jarinya. Pada pusat bintang, nilai rapat energi dan tekanannya sangat tinggi disebabkan oleh besarnya jumlah neutron di pusat dibandingkan di permukaan. Pada persamaan gravitasi termodifikasi yaitu persamaan Beyond Horndeski, profil bintang neutron akan lebih cocok pada parameter ϒ = -0.1 dengan massa maksimum sebesar 2.1851 Mʘ menggunakan pendekatan relativistic dan sebesar 0.791 Mʘ menggunakan pendekatan nonrelativistic .
Keyword: beyond horndeski, bintang neutron, Newtonian, efek relativistik, TOV