Judul: Periode residu doksisilin pada daging dan jeroan broiler serta pengaruh pemanasan terhadap kandungan residunya
Abstrak: Doksisiklin diberikan kepada ayam broiler umur lima minggu melalui air minum dengan dosis 200 ppm/ ekor/hari selama lima hari berturut-turut. Ayam aipotong setiap hari mulai dari awal pengobatan sampai 21 hari setelah pengobabn terakhir. Konsentrasi doksisiklin dalam daging dada, daging kaki, hati, ampela dan kulit ditentukan dengan metode cawan silinder (cup plate method) menggunakan spora bakteri Bacillus cereus var. mycoides ATCC 11778. Selain itu dilakukan pula penelitian mengenai pengaruh pemanasan 80° C dan l00 °C masing-masing selama 10, 20 dan 30 menit terhadap residu doksisiklin cialam larutan dapar dan jaringan. Kadar puncak dalam daging dada, daging kaki, ampela dan kulit dicapai pada hari ke-2 pengobatan, sedangkan dalam hati dicapai pada hari ke-3 pengobatan. Kadar puncak tertinggi ditemukan dalam hati. Residu doksisiklin masih ditemukan pada daging dada, daging kaki, hati, ampela dan kulit berturut-turut sampai dengan hari ke-: 14, 14, 13, 11 dan 10 setelah pengobatan terakhir. Dalam penelitian ini pemanasan 80°C dan 100°C selama 10, 20 dan 30 menit tidak dapat menginaktivasi 100% doksisiklin dalam larutan dapar. Sedangkan doksisiklin dalam daging dada, daging kaki, hati dan ampela dapat diinaktivasi 100% berturut-turut dengan pemanasan: l00°C-20 menit, 100 °C-10 menit, 80°C-20 menit dan 80 °C-10 menit. Namun demikian masih perlu diteliti lebih Ianjut mengenai adanya metabolit yang mungkin terbentuk akibat pemanasan serta aspek keamanannya.
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Judul: Residu toksisiklin dalam plasma, daging hati dan ginjal ayam broiler setelah di obati melalui air minum
Abstrak: Tujuan penelitian ini adalah untuk mendeteksi kadar residu Doksisiklin pada plasma, daging, hati dan ginjal ayam broiler dan untuk menentukan waktu henti Doksisiklin dalam ayam broiler setelah pengobatan melalui air minum dengan dosis preventif (125 mg/1 selama tiga hari) pada kondisi lokal. v Residu doksisiklin pada plasma, daging, hati dan ginjal kadarnya berada di atas 0.050 mcg/g mulai dari hari ke nol sampai hari ke delapan. Residu doksisiklin dalam plasma dan daging memiliki pola eliminasi yang mirip walaupun kadar doksisiklin lebih. rendah dalam plasma. Waktu henti obat doksisiklin pada ayam broiler dengan dosis 125 mg/1 yang diberikan tiga hari berturut-turut melalui air minum adalah sembilan hari pada ayam broiler. Metode cawan silinder biologi menggunakan bakteri uji Bacillus cereus var mycoides ATCC 11778, adalah cukup peka untuk mendeteksi residu Doksisiklin dalam jaringan. Dalam penelitian ini tidak ditemukan inhibitor alami Cnatural inhibitors) terhadap bakteria Bacillus cereus.
Keyword: Doksisiklin residu

Judul: The Construction of Greedy SVP LLL Algorithm
Abstrak: A lattice is a set of all integer linear combination of a set of linearly independent vectors in ℝ𝑛���. The independent vectors are called bases of lattice. Any lattice can be generated from many bases, and these bases have the same cardinality. In the lattice, the most fundamental and renowned problem is the Shortest Vector Problem (SVP). SVP is a tracking problem of the shortest nonzero vector in a lattice with equivalent bases. In two dimensions, SVP problem has resolved exactly by Gauss’ algorithm. When the lattice dimension is higher than two, A.K. Lenstra, H.W. Lenstra and L. Lovasz gave a LLL algorithm to compute approximation of nonzero shortest vector in the lattice. Reduced bases solution obtained from LLL algorithm still be an approximation and has polynomial running time of arbitrary dimension which large enough. In 1994, Schnoor and Euchner modified this LLL algorithm as a new variant which later was named deep insertion LLL algorithm. This algorithm is a modified version of the LLL algorithm to the terms of the exchange step to improve the accuracy of output of LLL reduced bases and applying it to the subset sum problem. The purpose of this research are: (1) Reconstruct the LLL algorithm and deep insertion LLL algorithm using a geometric approach. (2) Construct a greedy SVP LLL algorithm. (3) Implement the three algorithms in a symbolic programming language, and evaluate them experimentally. A bases ℬ=[𝐛���1,𝐛���2,…,𝐛���𝑛���] in ℝ𝑚��� is called reduced LLL with parameter 𝛿��� if satisfies: (a) |𝜇���𝑗���𝑖���|≤12, for every integer 𝑖���,𝑗��� with 1≤𝑖���<𝑗���<𝑛���. (b)𝛿���‖𝜋���𝑗���(𝐛���𝑗���)‖2≤‖𝜋���𝑗���(𝐛���𝑗���+1)‖2, for 𝑗���=1,2,…,𝑛���−1,where 𝛿��� is a reduced parameter of real numbers with 14<𝛿���<1. The first requirement is the reduced basis 𝛿��� must “nearly orthogonal” and in its computation case, this requirement can be reached out by using the Gram-Schmidt’s orthogonalization. While the second requirement is called exchange step, or used to called as Lovasz condition. By using both of these requirements, then they establish the LLL algorithm. Then, Schnoor and Euchner modify the LLL algorithm based on the requirements of the exchange step called the deep insertion LLL algorithm, where the exchange step is based on the comparison of the projected vector in orthogonal complement [𝐛���1,𝐛���2,…,𝐛���𝑘���−1]⊥ after j-th reduction. To construct greedy SVP LLL algorithm, the requirements of the exchange step is based on purely by comparing norm of lattice 𝐛���𝑗��� with norm lattice 𝐛���𝑖��� for 𝑖���=1,2,3…,𝑗���−1. The process of insertion reduced vector after the exchange step also has done greedily. Then, we calculate the number of arithmetic operation in greedy SVP LLL algorithm for further analysis. The result of our exprimentation for three algorithms on the certain matrix size shows that the running time of the three algorithms increases propotional to the size of the matrix. The result also shows that by using 𝛿���=34 for the LLL algorithm and the deep insertion LLL algorithm, and the greedy SVP LLL algorithm which is a new variant made by using no parameter of 𝛿���, outperform of the other of two previous algorithm in terms of speed with the same output.
Keyword: LLL algorithm, LLL deep insertion algorithm, greedy SVP LLL algorithm