Judul: Karakteristik Morfologi, Anatomi, Dan Kandungan Klorofil Lima Kultivar Tanaman Penyerap Polusi Udara Sansevieria trifasciata
Abstrak: Sansevieria trifasciata is a uniquely houseplant that can provide clean air to occupied room because it can absorb harmful substances from the air. This research aim to compare chlorophyll content, morphological-, and anatomicalcharacters of five cultivars of this plant. Morphological characters of all S. trifasciata observed varied in pattern, colour, and size of the leaf. Stomata of all cultivars can be found on both leaf surfaces, abaksial (lower surface) have higher stomatal density. Distribution of single stomata was presented in all cultivars, while clustered stomata were also found in cv. Moonsine. Among all cultivars, stomatal density and stomatal index were found the highest in cv. Moonsine. The highest chlorophyll content, the largest size of leaf and the thinnest leaf were found in the cv. African Dawn. Potentially, S. trifasciata cv. African Dawn and S. trifasciata cv. Moonsine could absorb air pollution better than other cultivars.
Keyword: Bogor Agricultural University (IPB), air pollution, chlorophyll content, anatomy, morphology, Sansevieria trifasciata

Judul: Pengaruh Filter Cahaya dan Media Tanam terhadap Pertumbuhan dan Kualitas Penampilan Tanaman Sansevieria trifasciata 'Lime Streaker'
Abstrak: Saat ini Sansevieria merupakan salah satu tanaman hias yang sedang populer. Hal ini dikarenakan Sansevieria dapat menyerap polutan dan membersihkan udara. Masalah yang sering dihadapi dalam membudidayakan Sansevieria adalah kualitas penampilan tanaman yang kurang menarik dan kompak. Kualitas penampilan tanaman dapat diukur dari kekontrasan warna tanaman dan kekompakan tanaman yang dapat diukur dari pertumbuhan vegetatif tanaman. Tanaman yang memiliki pertumbuhan dan kualitas penampilan yang baik dapat diperoleh dengan cara mengatur kualitas cahaya dengan menggunakan filter cahaya dan pengaturan komposisi media tanam. Penelitian ini bertujuan untuk mengetahui pengaruh filter cahaya, komposisi media tanam dan interaksinya terhadap pertumbuhan dan kualitas penampilan tanaman S. trifasciata ’Lime Streaker’. Penelitian ini dilaksanakan di rumah kaca PT. ASABI, Sentul Rest Area Jalan Tol Jagorawi Km 35 Bogor, Laboratorium Ekofisiologi Tanaman, Departemen Agronomi dan Hortikultura, dan Laboratorium Analisis Kimia dan Kesuburan Tanah Departemen Ilmu Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Institut Pertanian Bogor pada bulan Februari 2007 – Mei 2007.
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Judul: Eksplorasi Masalah Logaritma Diskret pada Finite Field G P(2m)
Abstrak: Discrete logarithm problem represents a problem which is defined as modular arithmetic. It is often used to generate a key pair on public key cryptography as security object. Given cyclic group G of order n, αgenerator of G, and β∈􀜩, then, in general, discrete logarithm problem is determined as the integer 􀝔, 0≤􀝔≤􀝊−1, such that α􀯫≡β(mod 􀝊). In Menezes et al. (1997) the algorithm to solve the discrete logarithm problem in common cyclic group G are Exhaustive Search algorithm, Baby-Step Giant-Step, Pollard's rho, Pohlig Hellman and Index Calculus. Furthermore, these algorithms are explored to determine the solution of discrete logarithm problem on 􀜩􀜨(2􀯠). The reconstructed algorithms are implemented using Maple 11 software. These implementation can be used to measure security level of cryptography algorithm, which is based on security aspects of discrete logarithm problem
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