Judul: Performans domba lokal yang digembalakan di padang rumput, Brachiaria humidicola UP3 Jonggol dengan penambahan dedak padi
Abstrak: Pemberian dedak padi kepada domba dipelajari untuk mendapatkan pengaruhnya terhadap pertambahan bobot badan, kondisi fisik dan tingkah lakunya selama 9 minggu. Penelitian ini dilakukan di UP3 Jonggol, dengan tujuan untuk memperbaiki performans domba lokal yang digembalakan di UP3 Jonggol. Pemberian dedak padi tersebut masing-masing adalah 0g (R0), 50g (R1), 100g (R2) dan 150g (R3). Data yang diperoleh dianalisis dengan analisis sidik ragam dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan bahwa penambahan dedak padi sampai taraf 150 gram terhadap pertambahan bobot badan secara statistik tidak berpengaruh. Selama penelitian bobot badan serta skor kondisi tubuh mengalami peningkatan. Hal ini menunjukkan bahwa dedak padi dapat memperbaiki serta mempertahankan performans produksi domba. Tingkah laku antara domba kontrol dengan yang diberi dedak padi, baik dalam kandang maupun di padang penggembalaan tidak terlalu berpengaruh.
Keyword: Domba, Dedak padi, Padang rumput, Brachiaria humidicola

Judul: Penampilan Domba yang Dikandangkan dengan Pakan Kombinasi Tiga Macam Rumput (Brachiaria humidicola, Brachiaria decumbens dan Rumput Alam) Di UP3 Jonggol
Abstrak: Pemberian kombinasi macam rumput kepada domba dipelajari untuk mendapatkan pengaruhnya terhadap konsumsi bahan kering, pertambahan bobot tubuh, konversi pakan dan kondisi fisiknya selama 9 minggu. Studi ini menggunakan rumput Brachiaria humidicola, Brachiaria decumbens dan rumput alam. Domba yang digunakan adalah domba jantan muda dengan kondisi fisik cukup baik setelah diberi obat cacing. Perlakuan yang diberikan terdiri atas 100% B. humidicola (T1 ), 50% B. humidicola + 50% B. decumbens (T2) dan 50% B. humidicola + 25% B. decumbens + 25% rumput alam (T3 ). Studi ini dilakukan dalam rancangan acak lengkap. Penjelasan dilakukan secara deskriptif terhadap konsumsi bahan kering, pertambahan bobot tubuh dan kondisi fisik domba. Pengaruhnya terhadap konversi pakan dipelajari dengan sidik ragam dan Uji Beda Nyata terkecil (BNT). Ilasil penelitian menunjukkan bahwa pakan kombinasi hijauan dapat meningkatkan konsumsi bahan kering, pertambahan bobot tubuh dan kondisi fisik, serta menurunkan nilai konversi pakan. Penggunaan rumput kombinasi berpengaruh nyata (P<0,05) terhadap konversi pakan. Efisiensi penggunaan pakan kombinasi tiga macam rumput lebih baik dari pada rumput yang tidak dikombinasikan. Penggunaan rumput B. humidicola sebaiknya dikombinasikan dengan rumput B. decumbens dan rumput alam untuk meningkatkan efisiensinya.
Keyword: domba, rumput, penampilan domba

Judul: Algorithm Construction of HLI Hash Function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice