Judul: Prevalensi Koksidiosis Pada Peternakan Sapi Perah Di Baru Tegal Dan Joglo, Cisarua, Kabupaten Bogor
Abstrak: Koksidiosis merupakan salah satu masalah untuk industri peternakan sapi perah. Penyakit yang disebabkan oleh spesies Eimeria. Penelitian ini bertujuan untuk menduga prevalensi koksidiosis, menghitung jumlah ookista tiap gram tinja (OTGT) dan mengidentifikasi spesies Eimeria. Penelitian dilaksanakan pada Januari hingga Agustus 2014 di Kelompok Ternak Baru Tegal dan Joglo. Jumlah total sampel sebanyak 100 sampel diperoleh dari sapi perah usia kurang dari 6 bulan, 6 sampai 12 bulan dan lebih dari 12 bulan. Metode McMaster digunakan untuk menghitung jumlah OTGT. Hasil penelitian menunjukkan bahwa prevalensi koksidiosis di Baru Tegal dan Joglo masing-masing sebesar 23.5% (SK 95%; 15.5%‒31.5%) dan 42.1% (SK 95%; 32.8‒51.4%). Prevalensi tertinggi pada sapi umur kurang dari 6 bulan sebesar 68.6% (SK 95%; 59.8-73.8) dan berdasarkan jenis kelamin terdapat pada sapi jantan sebesar 56.3% (SK 95%; 46.9-65.7). Derajat infeksi koksidiosis berdasarkan OTGT terdapat pada sapi umur kurang dari 6 bulan (OTGT=2387.5). Terdapat pengaruh yang nyata dari umur ternak terhadap nilai OTGT (p<0.05). Hasil identifikasi menemukan 5 spesies Eimeria sp, yaitu E. bovis, E. bukidnonensis, E. aurbunensis, E. wyomingensis dan E. canadensis.
Keyword: Bogor, koksidiosis, sapi perah, Eimeria sp, prevalensi

Judul: Prevalensi Koksidiosis Pada Sapi Perah Di Kelompok Ternak Tirta Kencana Dan Baru Sireum, Cisarua, Kabupaten Bogor.
Abstrak: Koksidiosis adalah penyakit yang disebabkan oleh protozoa Eimeria sp. Terdapat dua tipe Eimeria patogen, Eimeria bovis and Eimeria zuernii. Tujuan dari penelitian ini adalah untuk menghitung besarnya prevalensi koksidiosis dan identifikasi jenis Eimeria sp. pada sapi perah (Tirta Kencana and Baru sireum). Salah satu metode yang digunakan dalam penelitian ini adalah metode McMaster. Seratus sampel feses secara acak diambil dari kelompok ternak KUD Giri Tani (Tirta Kencana dan Baru Sireum). Sampel terdiri dari tiga jenis yaitu sampel dari sapi yang berumur kurang dari 6 bulan, berumur 6 sampai 12 bulan dan berumur lebih dari 12 bulan. Hasil menunjukkan prevalensi koksidiosis (Tirta Kencana dan Baru sireum) sebesar 47% (Selang Kepercayaan (SK) 95%; 37.2%- 56.7%) sedangkan prevalensi di tiap wilayah sebesar 58.3% (SK 95%; 49%- 68.3%) di Tirta Kencana dan 27% (SK 95%; 18.3%-35.7%) di Baru Sireum. Prevalensi tertinggi pada penelitian ini terdapat pada ternak berumur 6 sampai 12 bulan sebesar 92% (SK 95%; 87.0%-97.5%). Sebanyak tujuh spesies teridentifikasi dalam penelitian ini, yaitu E. bukidnonensis, E.wyomingensis, E. auburnensis, E. brasiliensis, E. canadensis, E. bovis dan E.zuernii.
Keyword: Coccidiosis, Dairy cattle, Eimeria bovis, Prevalence

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