Judul: Peningkatan fasilitas dan keamanan sistem peminjaman koleksi
Abstrak: Digital library is a library that keeps the collection in a form of digital file and passes it through a computer network. Collection lending system is a part of digital library which is useful in the process of borrowing digital library collection. Collection lending system has multimedia file collection, but it does not have multimedia file reader. Collection lending system also has unguaranteed security system. Therefore, there is a need of improvement in this system. The improvement of this system is done by adding a multimedia file reader facility and security enhancements. Security is enhanced by the security services improvements. There is two ways to improve the security services. The first is the improvements of confidentiality and authentication service. The second improvement is the addition of integrity service. Confidentiality service improvement is made by adding a new input to the header, implementation of the password hash function, and adds a read-only and hidden attribute to the temporary file that generated during the decryption process. New input in a form of hours is added to the header to handle date manipulation. Entity authentication service is enhanced with the implementation of captcha. Captcha is implemented to ensure that the entity that borrowed the file is not a computer program. Integrity service addition is made by the implementation of hash function to the file. Integrity service is added to ensure that the file that has been borrowed has not been modified by the entity that is not responsible.
Keyword: Security service, Duplikasi file, File audio, Collection lending system, Bogor Agricultural University, Institut Pertanian Bogor, IPB

Judul: Metode keamanan sistem peminjaman koleksi digital perpustakaan
Abstrak: Perpustakaan merupakan salah satu sumber informasi yang dapat diakses oleh masyarakat urnurn. Masyarakat dapat mendapat informasi yang terdapat di perpustakaan dengan cara merninjam koleksi yang ada di perpustakaan. Perkernbangan teknologi saat ini mempengaruhi cara pcnyimpanan infomasi. Saat ini informasi mulai sering disimpan dalam bentuk file digital dan koleksi dalam bentukfile digital pun mulai banyak dimiliki oleh perpustakaan. Penelitian ini dilakukan untuk membuat metode keamanan untuk diterapkan dalam sistem perninjaman koIeksi digital perpustakaan. Tujuan keamanan' yang diharapkan dari metode keamanan ini adalah setiap koleksi digital' yang telah diberikan kepada anggota perpustakaan , untuk dipinjamkan terlindungi sehingga hanya dapat digunaknn dengan perangkat lunak yang disediakan oleh perpustakaan. Tujuan keamanan yang lain adalah mengatur penggunaan koleksi digital tersebut sesuai dengan aturan yang berlaku di perpustakaan. . Koleksi digital yang digunakan dalam penelitian ini adalah file dengan format Adobe PDF versi 5 dan versi 6, sedangkan aturan peminjaman koleksi milik perpustakaan yang menjadi perhatian utarna dalam penelitian ini adalah masa peminjaman koleksi. Ruang lingkup dari penelitian ini dibatasi pada penyusunan sebuah metode keamanan yang merupakan kriptosistem yang terdiri dari prosedur operasional, protokol penggunaan dan primitif kriptografi serta elemenelemen lainnya yang digunakan secara terintegrasi untuk mencapai tujuan keamanan.
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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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