Judul: The  dynamics  of  sumba  flies  population  (hippobosca  equina.)  at  dairy  cows  in  dairy  farming  area  Cibungbulang  Bogor  district
Abstrak: Susu merupakan satu di antara komoditas peternakan yang dapat mendukung pemenuhan kebutuhan akan bahan pangan bergizi tinggi. Penelitian ini bertujuan untuk mengetahui fluktuasi populasi lalat Hippobosca equina di kawasan usaha peternakan sapi perah Cibungbulang, Kabupaten Bogor. Penelitian dilakukan selama satu tahun mulai bulan April 2013 sampai Maret 2014. Pengambilan sampel lalat dilakukan dengan cara manual menggunakan alat penangkap serangga (sweep net). Hasil pengamatan menunjukkan jumlah populasi H. equina naik turun dari April sampai Juni dan setelah itu cenderung menurun dari Juni 2013 hingga September 2013. Sejak Oktober 2013 hingga Maret 2014 H. equina menghilang di satu peternakan di peternakan sapi perah Cibungbulang, Kabupaten Bogor. Hasil analisis korelasi menunjukkan adanya hubungan signifikan antara suhu dengan populasi lalat (r=0.612, P=0.034<0.05), sedangkan antara kelembaban relatif dengan populasi lalat yang tertangkap tidak menunjukkan hubungan yang signifikan (r=-0.141, P=0.661>0.05). Hubungan indeks curah hujan dengan populasi lalat juga tidak memperlihatkan hasil yang signifikan (r=-0.20, P=0.534>0.05). Menghilangnya populasi lalat pada bulanbulan tertentu tersebut, kemungkinan disebabkan oleh kondisi suhu lingkungan yang tidak mendukung perkembangbiakan lalat., Milk is one of farm commodity that can comply highly nutritious food needed. This study aimed to determine the fluctuations of Hippobosca equina population in Cibungbulang, Bogor District. This study was undertaken for one year from April 2013 to March 2014. Sampling was done manually by using insect catcher tool (sweep net). The result showed that existence of H. equina population fluctuated from April to June and then tends decreased continuously until September. Since October 2013 until March 2014 H. equina was disapperaed. Correlation analysis showed a significant relationship between flies population with temperature (r=0.612, P=0.034<0.05), there was no significant correlation between relative humidity with the flies population (r=-0.141, P=0.661>0.05). The relationship of rainfall index with flies population also did not show significant results (r=-0.20, P=0.534>0.05). The disappearance of the flies population maybe caused by the environmental temperature conditions that do not support the reproduction of flies.
Keyword: Hippobosca equina, populasi, suhu

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: Analisis dan Implementasi Certificate Authorities (CA) pada Public Switched Telephone Network (PSTN)
Abstrak: Secure Telephone Protocol has ability to authenticate involved party and keep the secrecy of the message sent over the protocol. The secrecy of the message archieved by using symmetric key cryptographic scheme, and authentication archieved using public key cryptographic scheme. One of several party involved in the protocol and hold an important function called Certificate Authorities or CA. CA responsible for generating public key pair for other party involved in the protocol. When CA generates public key pair, several primitive cryptographic scheme used for guarantee the security of the key. Two of them are hash function SHA-1 and El-Gamal public key scheme embedded in Digital Signature Algorithm scheme. The prototype implementing the scheme above developed using Java programming language with JCE addition from Bauncy Castle. The analysis towards implemented prototype indicates that the prototype still has some flaws to be implemented in real world.
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