Judul: Aktivitas anthelmintika ekstrak Daun Miana (Coleus blumei) terhadap Hymenolepis microstoma in vitro
Abstrak: Penelitian ini bertujuan untuk mempelajari aktivitas anthelmintika ekstrak daun miana terhadap Hymenolepis microstoma in vitro. Daun miana dikeringkan dan diekstraksi dengan menggunakan pelarut kloroform dan etanol. Sebanyak 3 ekor cacing dimasukkan ke cawan mikrotitrasi yang telah berisi ekstrak kloroform atau etanol daun miana dengan konsentrasi 10%, 5%, 2.5%, 1%, 0.5%, kontrol negatif (NaCl fisiologis), dan sebagai kontrol positif (praziquantel). Pengujian ini diulang sebanyak tiga kali. Pengamatan dilakukan terhadap waktu paralisis dan kematian cacing pada setengah jam pertama dan dilanjutkan satu jam sekali. Hasil penelitian menunjukkan bahwa ekstrak etanol dan kloroform berbeda nyata (p<0.05). Ekstrak etanol dan kloroform memiliki aktivitas anthelmintika yang kuat. Aktivitas anthelmintika semakin meningkat seiring peningkatan konsentrasi ekstrak. Aktivitas anthelmintika ekstrak etanol lebih kuat dibandingkan dengan kloroform. Konsentrasi (0.5%-10%) pada ekstrak etanol menunjukkan aktivitas anthelmintika yang lebih kuat dibandingkan dengan kontrol positif sedangkan pada ekstrak kloroform lebih lemah dibanding kontrol positif dan etanol.
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Judul: Aktivitas Antifungi Ekstrak Daun Miana (Coleus scutellariodes [L] benth) pada Pertumbuhan Candida albicans Secara In Vitro
Abstrak: Miana (Coleus scuttellariodes [L] Benth) is one of the traditional medicine from family Lamiceae having flavonoids, tannins, saponins, steroids, and triterpenoids compound those can be used as antifungal. The objectives of this research were to examine the antifungal activity of Coleus scuttellariodes [L] Benth leaves extract against C. albicans and to analyze the active compounds in Coleus scuttellariodes [L] Benth leaves extract that has potential as an antifungal against C. albicans. The methods of this research were extraction with aquades, etanol 70%, and acetone, antifungal activity test by agar well diffusion and identification of active compound extract with the best inhibition in antifungal activity with Gas Chromatography-Mass Spectrometry (GC-MS). The result showed that acetone extract 400 mg/mL had the highest inhibition activity with the zone of 4.66 mm included in the low category, meanwhile aquades and etanol 70% extract did not show antifungal activity. Positive control nystatin concentration of 1.028 mg/mL is more effective in inhibiting of C. albicans. Minimum inhibition concentration value of acetone extract was 1.56 mg/mL. Identification of acetone extract with GC-MS result phytol in amount of 41.29%.
Keyword: Coleus scutellariodes, Candida albicans, antifungal

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