Judul: Hubungan tingkat konsumsi energi dan protein status gizi dan status kesehatan ibu hamil dengan berat badan bayi lahir : studi kasus di Kecamatan Polugadung, Jakarta Timur
Abstrak: Tujuan Penelitian ini adalah untuk mengetahui tingkat konsumsi energi dan zat gizi ibu hamil, mengetahui status gizi ibu hamil, mengetahui hubungan antara tingkat konsumsi energi dan protein terhadap status gizi ibu hamil, mengetahui hubungan status gizi ibu hamil dengan berat badan bayi lahir dan mengetahui hubungan status kesehatan ibu hamil dengan berat badan bayi lahir. Penelitian ini dilakukan di Kecamatan Pulogadung, Jakarta Timur. Penelitian berlangsung dari bulan Oktober 1990 sampai diambil dengan Februari 1991. Pemilihan lokasi secara "purposive", berdasarkan banyaknya jumlah ibu hamil dan kelengkapan data yang menunjang penelitian. Sampel yang dipilih adalah ibu hamil dengan umur kehamilan 8 bulan, diambil secara acak sebanyak 60 orang.
Keyword: Berat badan bayi lahir, Kesehatan ibu hamil, Status gizi ibu hamil, Kecamatan Polugadung, Jakarta Timur

Judul: Studi tentang Status Ekonomi, Pengetahuan Gizi, Konsumsi Susu, dan Status Gizi Ibu Hamil di Sumenep
Abstrak: Susu mengandung zat-zat gizi penting yang diperlukan oleh tubuh. Tujuan dari penelitian ini adalah menganalisis hubungan status ekonomi dan pengetahuan gizi dengan konsumsi susu; dan hubungan konsumsi susu dengan status gizi ibu hamil. Desain penelitian adalah cross sectional study dengan melibatkan 56 orang ibu hamil. Data yang dikumpulkan meliputi karakteristik sosial ekonomi, karakteristik subjek, pengetahuan gizi, konsumsi pangan, dan antropometri ibu hamil. Hasil uji Chi-Square menunjukkan tidak terdapat hubungan signifikan (p>0.05) antara pendidikan ibu dengan konsumsi susu, pengetahuan gizi dengan konsumsi susu, status ekonomi dengan konsumsi susu, usia kehamilan dengan konsumsi susu, konsumsi susu dengan ukuran LILA, usia kehamilan dengan pertambahan berat badan, dan konsumsi susu dengan pertambahan berat badan. Namun terdapat hubungan signifikan (p<0.05) antara pendidikan ayah dengan konsumsi susu dan konsumsi susu dengan tingkat kecukupan protein.
Keyword: konsumsi susu, pengetahuan gizi, status ekonomi, status gizi ibu hamil

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