Judul: Rancang Bangun Jaringan Peer-to-Peer Webcam dengan Menggunakan Protokol JXTA
Abstrak: Internet is a media for exchange of information and data. Network used on the internet today still implementing client-server network model. Clients need the information must related to the server and request the information needed. System established client-server network is a centralized system and can potentially commercial. If the server was down, the information requested by the client can’t be given and the whole network will be disrupted. Peer-to-peer network is set up to reduce the problem of client-server. Peer-to-peer will not be affected to the problems that occur in each host. If one host to crash or be unable to connect, the network was still able to run. In this research we develop an application using JXTA protocol as a framework for peer-to-peer and API JMF as an additional feature integrated on a JXTA application. API JMF is used to access webcam and produces images or videos. Video or image files generated by the API JMF can be distributed directly into the peer-to-peer network which has been formed. Other connected peers can directly search and download the video files or images. Downloaded files will be directly stored into a local folder on each peer. Files downloaded can be directly redistributed by every peer. If one peer dies, the other peer can share the data from the dead peer after the file is downloaded from the source peer.
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Judul: Pembangunan content streaming untuk sistem pembelajaran jarak jauh (Siranjaja) pada jaringan Piconet menggunakan Java API JSR-82
Abstrak: Handphone kini telah dilengkapi dengan berbagai piranti tambahan (seperti kamera, bluetooth, dan lain-lain) sesuai dengan tuntutan kebutuhan konsumen. Handphone kini telah menjadi perangkat yang multiguna. Seiring dengan hal itu, kegiatan pembelajaran jarak jauh juga semakin banyak dikembangkan. Kegiatan belajar mengajar tidak lagi dibatasi dengan pertemuan fisik dalam satu ruang perkuliahan. Dengan kemajuan teknologi, ruang perkuliahan bisa digantikan dengan ruang kelas virtual (virtual class). Virtual class yaitu kelas virtual di mana dosen dan mahasiswa tidak harus bertatap muka dalam satu kelas, tetapi dapat digantikan dengan aplikasi video streaming. Bluetooth adalah suatu teknologi radio jarak pendek yang memungkinkan konektivitas tanpa kabel antar perangkat yang bersifat mobile. Ketersediaan kamera dan bluetooth pada handphone memungkinkan peluang untuk memanfaatkannya sebagai media pembangunan content streaming untuk berbagai keperluan, di antaranya untuk sistem pembelajaran jarak jauh. Pada penelitian ini dikembangkan suatu SIRANJAJA (SIstem pembelajaRAN JArak JAuh) berbasis web. SIRANJAJA terdiri atas dua modul utama, yaitu modul pembangunan content streaming dan modul portal web. Modul yang diimplementasikan pada penelitian ini hanyalah modul pembangunan content streaming. Modul pembangunan content streaming dibagi menjadi dua submodul, yaitu submodul client handphone dan server komputer. Pada penelitian ini dilakukan tiga percobaan, yaitu percobaan rekam kecepatan kamera, percobaan rekam suara, dan percobaan pengiriman data dari client handphone ke server komputer. Penelitian ini berhasil membangun prototipe modul pembangunan content streaming pada sisi client (handphone) dan server (personal computer). Aplikasi ini selanjutnya dapat digunakan sebagai alternatif pembuat content streaming pada suatu sistem pembelajaran jarak jauh. Hasil percobaan pengukuran kecepatan rekam kamera menunjukkan bahwa jenis encoding citra yang sebaiknya digunakan dalam pengiriman data citra dari handphone adalah encoding JPEG. Ukuran dimensi yang direkomendasikan adalah ukuran 160 x 120 pixel. Hasil percobaan rekam suara menunjukkan bahwa waktu commit yang digunakan untuk proses perekaman suara yang dianggap terbaik adalah 5 detik. Hasil percobaan pengiriman data dari client handphone ke server komputer menunjukkan bahwa delay pengiriman data suara lebih besar dibandingkan dengan delay pengiriman data citra untuk waktu perekaman yang sama. Keterbatasan kecepatan processor dan ukuran memory yang digunakan pada handphone mempengaruhi delay yang dihasilkan pada saat pengiriman data citra dan suara secara bersamaan.
Keyword: piconet, bluetooth, mobile device

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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