Judul: Growth and Survival Rates of Transplanted Coral Platygyra sp. and Favites sp. in Sangiang Island, Banten
Abstrak: Transplantasi karang di Indonesia sudah banyak dilakukan, namun kebanyakan transplantasi karang menggunakan karang dengan bentuk peritumbuhan bercabang dan sangat jarang yang menggunakan karang batu. ransplantasi karang merupakan suatu teknik penanaman karang baru dengan metode fragmentasi, di mana benih karang diambil dari induk koloni tertentu. pelitian ini bertujuan untuk mengetahui laju pertumbuhan serta tingkat kehidupan transplan karang batu jenis Platygyra sp. dan Favites sp. di Pulau Sangiang, Banten. Penelitian dilakukan dengan pengambilan bibit karang, pembuatan konstruksi modul, pengambilan foto karang secara berkala serta pengukuran pemambahan panjang menggunakan software CPCe. Bibit karang diambil terdiri dari beberapa genus, di antaranya adalah Platygyra sp. dan Favites sp .. Laju pertumbuhan karang massive jenis Platygyra sp. sebesar O,13(±O,02) cmlbulan dan Fa ites sp. sebesar O,14(±O,OI) cmlbulan. Tingkat kelangsungan hidup transplan karang massive jenis Favites sp. lebih mampu beradaptasi dibandingkan jenis Platygyra sp. di mana hanya terjadi kematian 2 dari 46 individu dibandingkan dengan jenis Platygyra sp. yang mengalami kematian sejumlah 19 dari 46 individu.
Keyword: coral growth, coral massive, coral transplantation, Favites, Platygyra

Judul: Sintasan dan Laju Pertumbuhan Transplantasi Karang Massive Jenis Favites paraflexuosa Veron 2000 di Perairan Pulau Pramuka, Kepulauan Seribu, Jakarta
Abstrak: Coral transplantation in common had purpose to rehabilitize a location which have a bad condition of it’s coral reef or to build a new area of coral reef. But now days, transplantation also developed as the coral culture for ornamental coral trading. Favites paraflexuosa corals have a delightfull beauty, so this kind of coral could be used as an ornamental coral. The information from this kind of coral is still limited so a further research is needed. The purpose of this research is to known the survival and growth rate, absolute growth, wound recovery and colour change of coral massive Favites paraflexuos Veron 2000 which placed in a cement module and compiled in (1x1) m2 shelf. Survival and growth rate of this coral’s transplation showed a high value. So, that transplantation had a good succesfull rate. Wound recovery and colour change of that coral transplantation had a rather fast period.
Keyword: 

Judul: The Exploration of Discrete Logarithm over Finite Field GF(3m)
Abstrak: The security of many public~key algorithms is based on the problem of finding discrete logarithms. The generalized discrete logarithm problem is the following: given a finite cyclic group G of order n, a generator a of G, and an element fl E G, find the integer x, 0 ~ x ~ n - 1, such that 0: = fl. Algorithm for discrete logarithm problem focused on Menezes et al. (1997) that consist of exhaustive search algorithm, the baby-step giant-step algorithm, Pollard's rho algorithm, Pohlig-Hellman algorithm, and index-calculus algorithm. These algorithms are explorated to be used in discrete logarithm problem over finite field GF(3m ). The exploration also produces some algorithms, i.e. naif negative algorithm, baby-step mother-step algorithm, baby-step mother free-step algorithm, and baby-step free-step algorithm. All algorithms implemented using Maple 11. The Pohlig-Hellman and baby-step giant-step algorithms are efficient enough to be used in discrete logarithm problem over finite field GF(3m ) for m < 20.
Keyword: