Judul: Perubahan Perilaku Konsumsi Tablet Tambah Darah Menggunakan Media Komunikasi Ditinjau dari Transtheoretical Model
Abstrak: Pemerintah Indonesia berupaya menurunkan prevalensi anemia pada remaja perempuan melalui program pemberian Tablet Tambah Darah (TTD) di sekolah. Namun, program ini belum optimal karena kurangnya pemahaman tentang TTD dan anemia. Penelitian ini bertujuan menganalisis perubahan perilaku konsumsi TTD dalam konteks Transtheoretical Model (TTM) setelah intervensi media. Metode penelitian kuantitatif pra-eksperimen dengan one-group pre-test-post-test melibatkan 368 siswi dari SMK Yafahi dan SMA Kornita. Hasil penelitian menunjukkan bahwa sebelum intervensi, mayoritas siswi berada pada tahap prakontemplasi (52,94 persen) dan kontemplasi (41,18 persen). Setelah intervensi media berupa video dan poster, terjadi peningkatan pada tahap kontemplasi, persiapan, aksi, dan pemeliharaan. Kesimpulannya, intervensi media berupa video dan poster terbukti efektif mendorong perubahan perilaku konsumsi TTD pada remaja perempuan. Penelitian lebih lanjut dengan desain yang lebih kuat perlu dilakukan untuk menguji efektivitas intervensi media ini dalam jangka panjang.
Keyword: health behavior, behavior change, iron folic acid supplement, Transtheoretical Model

Judul: Effect of Difference Compliance Monitoring Card on Iron Supplementation Program at School.
Abstrak: Salah satu kelompok umur yang rentan mengalami anemia adalah remaja (Tesfaye et al. 2015). Upaya pemerintah dalam menanggulangi masalah anemia tidak selalu berjalan dengan baik dan efektif karena dalam pelaksanaannya terdapat beberapa masalah yang sering dihadapi, salah satunya adalah kepatuhan mengonsumsi Tablet Tambah Darah (TTD) yang rendah (Soekirman 2000). Salah satu cara monitoring kepatuhan TTD yang sudah dilakukan pemerintah adalah pemberian kartu monitoring kepatuhan konsumsi TTD kepada remaja putri. Secara umum penelitian ini bertujuan mengetahui pengaruh perbedaan pemberian kartu monitoring terhadap tingkat kepatuhan remaja putri dalam mengonsumsi TTD. Tujuan khusus penelitian ini, yaitu : 1) Menganalisis tingkat kepatuhan konsumsi TTD pada remaja putri; 2) Menganalisis pengaruh persepsi tentang TTD dengan tingkat kepatuhan konsumsi TTD pada remaja putri; 3) Menganalisis faktor predisposisi yang terdiri dari pengetahuan gizi, sikap dalam mengonsumsi TTD, dan motivasi untuk mengonsumsi TTD dengan tingkat kepatuhan konsumsi TTD pada remaja putri; dan 4) Menganalisis faktor penguat yang terdiri dari dukungan orang tua, dukungan guru, dukungan teman dekat, dan paparan informasi dengan tingkat kepatuhan konsumsi TTD pada remaja putri. Desain studi yang digunakan adalah kuasi eksperimental. Pelaksanaan intervensi dilakukan sejak bulan Oktober 2016-Januari 2017 di tiga Sekolah Menengah Pertama (SMP) dan tiga Sekolah Menengah Atas (SMA)/sederajat terpilih yang mengikuti program Pemberian Tablet Tambah Darah (TTD) di Sekolah dari Dinas Kesehatan Kota Bogor. Subjek pada penelitian ini adalah 240 remaja putri berusia 12-18 tahun yang dibagi menjadi tiga kelompok perlakuan, masing-masing perlakuan terdiri atas 40 siswi SMP dan 40 siswi SMA. Ketiga kelompok perlakuan tersebut masing-masing menerima kartu monitoring kepatuhan dari Dinas Kesehatan Kota Bogor (M) yang diberikan setiap bulan, kartu monitoring yang dikembangkan dengan penambahan tanda tangan guru dan orang tua (M+T) yang diberikan setiap bulan, dan kartu monitoring yang dikembangkan berbentuk leaflet dengan penambahan tanda tangan guru dan pengetahuan mengenai anemia serta TTD (M+TP) yang diberikan di awal penelitian., Adolescents are one of vulnerable/susceptible age group to anemia (Tesfaye et al. 2015). Government effort in order to overcome this problem does not always go well, one of the most problem is a low level of compliance on Iron Folic Acid (IFA) consumption (Soekirman 2000). To ensure the level of compliance on IFA consumption, one of government effort is giving compliance monitoring card to the adolescent girls. In general, the objective of this study was to analyse the effect of using different compliance monitoring cards on compliance level of adolescent girls on IFA consumption in Bogor. Specifically, the objective of this study were : 1) To analyse compliance level of adolescent girls on IFA consumption; 2) To analyse adolescent girls’ perception of IFA on compliance level of IFA consumption; 3) To analyse the predisposition factors, including of nutritional knowledge, adolescent girls’ behaviour, and motivation, on compliance level of IFA consumption; 4) To analyse secondary factors, including parents’ support, teachers’ support, best friends’ support, and other information regarding IFA, on compliance level of IFA consumption. Design of this study was quasi experimental. Intervention was conducted for 3 months, since October 2016 until January 2017, on 3 different Junior High Schools and 3 different Senior High Schools. Those group of schools are included
Keyword: adolescent girl, compliance, iron supplementation, Human ecology, Kruskal-wallis test, Mann-whitney test

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