Judul: Efek Imunomodulator Pemberian Antibiotika Doksisiklin, Enrofloksasin, Tilmikosin, Tilosin Secara Oral Terhadap Diferensiasi Sel Darah Putih Pada Ayam Broiler
Abstrak: Penelitian ini beliujuan untuk mengetahui efek imunomodulator dari antibiotika doksisiklin, enroflaksasin, tilmikosin dan tilosin terhadap diferensiasi sel darah putih pada ayam broiler yang berumur 3 minggu strain Hybro. Sebanyak 40 ekor ayam yang dibagi dalam 5 kelompok perlakuan digunakan dalam penelitian ini. Empat kelompok diberikan perlakuan antibiotika beliurut-turut tilasin, tilmikosin, enrofloksasin dan doksisiklin sedangkan satu kelompok sebagai kontrol diberi minum air putih selama 5 hari berturut-turut. Dua puluh empat jam setelah pemberian antibiotika terakhir dilakukan pengambilan darah untuk dibuat preparat ulas darah pada semua perlakuan. Dari hasil uji statistik memperlihatkan bahwa pemberian antibiotika ini mempengaruhi gambaran sel darah putih &yam. Pemberian antibiotika tilosin, tilmikosin dan doksisiklin memberikan efek yang nyata (P<0.05) pada gambaran ulas darah ayam sedangkan antibiotika ehrofloksasin tidak memberikan pengaruh yang nyata jika dibandingkan dengan kontrol.
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Judul: Pengaruh Pemberian Antibiotika Tilmikosin, Tilosin, Enrofloksasin, Doksisiklin Secara Oral Terhadap Aktifitas Fagositosis Sel Fagosit Peritoneum Pada Ayam Broiler
Abstrak: Penelitian ini dilakukan untuk melihat pengaruh pemberian antibiotika tilmikosin, tilosin, enrofloksasin dan doksisiklin secara oral terhadap aktifitas fagositosis sel fagosit peritoneum. Ayam diberi antibiotika secara oral selama 5 hari berturut-turut dengan antibiotika yang berbeda. Setelah 24 jam terakhir pemberian preparat antibiotika, ayam ditantang dengan bakteri Staphylococcus aureus non protein A pada rongga peritoneum dan satu jam kemudian dilakukan pemanenan sel fagosit peritoneum. Aktifitas fagositosis sel fagosit dihitung dengan persentase jumlah fagosit yang aktif memfagosit S. aureus dalam 100 sel fagosit yang ditemukan. Hasil yang ditunjukkan bahwa jumlah sel fagosit aktif mengalami peningkatan walaupun secara statistik tidak berbeda nyata (P>0.05). Rata-rata persentase sel fagosit yang aktif bila dibandingkan antara perlakuan dengan kontrol dan antar perlakuan pada jantan dan betina, umumnya menunjukan hasil tidak berbeda nyata (P>0.05), kecuali pada pemberian antibiotika tilosin berbeda nyata (P<0.05) dibandingkan dengan kontrol.
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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