Judul: Efisiensi Tataniaga Domba Pedaging di Kabupaten Garut Jawa Barat
Abstrak: Penelitian bertujuan untuk mengetahui profil dan berbagai biaya pemasaran domba pedaging di Kabupaten Garut pada bulan Februari-April 2015. Metode penelitian yang digunakan adalah survey, analisis data dilakukan secara deskriptif. Responden penelitian diambil secara purposive. Sampel lembaga pemasaran dipilih secara snowball dari mulut ke mulut. Hasil penelitian menunjukan bahwa terdapat dua jenis saluran tataniaga domba pedaging di Kabupaten Garut, yaitu saluran tataniaga mitra dan saluran tataniaga non-mitra. Pada saluran tataniaga mitra saluran yang paling efisien adalah saluran tataniaga 2 dengan farmer’s share sebesar 81.93 dan marjin sebesar Rp 15 000 per kg. Pada saluran tataniaga non-mitra saluran yang paling efisien adalah saluran tataniaga 6 dengan nilai farmer’s share sebesar 100 persen dan memperoleh harga sebesar Rp 82 000 per kg.
Keyword: channel marketing, marketing margin, pricing, sheep

Judul: Analisa penawaran dan pola pemasaran ternak domba rakyat di kecamatan cikajang kabupaten garut
Abstrak: Kabupaten Garut merupakan kabupaten di Jawa Barat yang cukup berpotensi dalam ternak domba. Dengan adanya kecenderungan menurunnya populasi dan meningkatnya pemotongan ternak domba di beberapa wilayah, maka dirasakan perlunya untuk melihat potensi penawaran dan pola pemasaran ternak domba rakyat di kecamatan Cikajang, Kabupaten Garut. Penelitian bertujuan untuk menganalisa faktor-faktor yang mempengaruhi volume penawaran ternak domba rakyat dan pola pemasarannya. Hasil yang diperoleh dari penelitian ini diharapkan dapat dijadikan bahan pengambila keputusan bagi peternak maupun kebijaksanaan pemerintah, sehingga diharapkan dapat lebih memperbaiki ekonomi pedesaan atau peternak dan program pemerintah dimasa mendatang. Penelitian telah dilakukan pada 80 petani-peternak contoh yang berlokasi di desa Cikandang, desa Cibodas dan desa Wangunjaya dalam wilayah kecamatan Cikajang. Metode Pengambilan contoh secara acak sederhana. Untuk menganalisa faktor-faktor yang mempengaruhi volume penawaran ternak domba rakyat, digunakan: Volume penjualan per bulan dalam kg bobot badan sebagai peubah tak bebas dan harga per kg bobot badan, biaya makanan hijauan, biaya makanan konsentrat, pertambahan alami ternak, skala pemilikan ternak domba, jumlah tanggungan keluarga, pendapatan selain usaha ternak domba dan desa penelitian sebagai peubah bebas. Fungsi penawaran yang dipergunakan adalah fungsi Cobb-Douglas yang kemudian ditransformasikan kedalam bentuk logaritma sehingga menjadi model regresi linier berganda dan diduga dengan metode kuadrat terkecil. Pengolahan data dengan menggunakan jasa komputer Departemen Statistika IPB dengan program BMDPR.
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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