Judul: Bioavailabilitas zat besi (Fe) dan konsumsi pangan pada wanita usia subur di Kota Bogor
Abstrak: Tujuan dari penelitian ini adalah untuk menghitung bioavailabilitas zat besi dan makanan konsumsi bagi wanita usia subur. Penelitian dilakukan di Bogor kota. Penelitian ini merupakan penelitian cross sectional. Penelitian ini memiliki 200 sampel wanita usia subur. Penelitian ini menggunakan tiga metode bioavailabilitas seperti 1) Monsen dkk (1978); 2) Du dkk (1999); dan 3) WHO (1988). Hasil menunjukkan konsumsi hewani 77,9 ± 72,6 g dengan asupan zat besi 24,6 ±38,2mg. Rata-rata makanan heme untuk metode 1 adalah 4,2 mg, metode 2 dan 3 adalah 9,9 mg, sedangkan makanan non heme dengan metode 1 sebanyak 20,5 mg, metode 2 dan 3 sebanyak 14,8 mg. Bioavailabilitas zat besi metode 1, metode 2 dan metode 3 pada penelitian ini adalah 2,2 mg, 2,5 mg dan 4,3 mg. Metode 3 yang lebih tinggi dari RDA Indonesia. Tidak ada hubungan yang signifikan antara bioavailabilitas zat besi dan hemoglobin (p>0,005).
Keyword: Iron bioavailabilty, Food consumption, Heme and non heme, Woman of childbearing age

Judul: Bioavailabilitas Zat Besi dan Konsumsi Pangan pada Ibu Hamil di Kota Bogor
Abstrak: Tujuan dari penelitian ini adalah untuk memperkirakan bioavailabilitas zat besi pada ibu hamil wanita menggunakan tiga metode berbeda. Penelitian dilakukan di kota Bogor. Desain penelitian ini adalah studi cross-sectional, dan jumlah sampel adalah 203 wanita hamil. Hasil penelitian menunjukkan bahwa anemia prevalensinya adalah 22,2%. Konsumsi makanan hewani sebagai sumber zat besi tadi masih rendah (80 g) mungkin 84,2% sampel memiliki zat besi yang tidak mencukupi. Asupan vitamin C sebagai peningkat bioavailabilitas zat besi sebesar 39,1 mg. Penelitian ini memiliki menunjukkan bahwa asupan zat besi heme (8,9 mg) lebih rendah dibandingkan dengan zat besi non-heme (13,3 mg). Berdasarkan hasil tersebut diperoleh nilai bioavailabilitas zat besi sebesar 3,9 mg. Dia menunjukkan bahwa bioavailabilitas zat besi pada penelitian ini lebih rendah dibandingkan dengan Indonesia RDA. Ketersediaan hayati zat besi dipengaruhi secara signifikan (R2=0,996; p<0,05) berdasarkan asupan dari vitamin A, vitamin C dan zat besi. Korelasi orang menunjukkan tidak ada hubungan (r=0.170; p>0.05) antara bioavailabilitas zat besi dengan status anemia.
Keyword: Iron bioavailability, Food consumption, Pregnant woman

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