Judul: Pengaruh Pemberian Hormon Sitokinin (BAP) Pada Perbedaan Pertumbuhan Tunas Batang Tetrastigma leucosthaphyllum
Abstrak: Tetrastigmais a liana which became the host of holoparasit plant, Rafflesia. Therefore, the survival of Rafflesia depend on Tetrastigma. One way to maintain the existence of Rafflesia is by multiplying Tetrastigma through giving the hormone on the stem of Tetrastigma. The purpose of this research is to identify the influence of callus growth differences by giving sitokinin hormone on the stem of Tetrastigma leucosthaphyllum.The methods that used is to give treatment of those plants, namely by giving sitokinin hormone with each concentration 0 (control), 20 mg/l, 40 mg/l, 60 mg/l, and 80 mg/l on three kinds of lianas. Based on the research, the treatment by giving sitokinin hormone 80 mg/lgave the highest amount of influence in growing callus than other treatment. But based on the test there is no real influence in each concentration of giving treatment by 0 (control), 20 mg/l, 40 mg/l, 60 mg/l, dan 80 mg/l.
Keyword: Tetrastigmaleucosthaphyllum., sitokinin hormone, concentration, callus

Judul: Penggunaan Beberapa Jenis Sitokinin Terhadap Multiplikasi Tunas dan Pertumbuhan Binahong (Anredera cordifolia [Ten.] Steenis) secara In Vitro
Abstrak: Biological diversity in Indonesia occupied third place in the world that using to fulfill needs of basic necessities and supply of medicines. Utilization of medicinal plant in domestic region become larger in a row with improvement of people awareness to consumed natural medicines. Binahong (Anredera cordifolia [Ten.] Steenis) is one of medicinal plant that have a potention to expand as medicine basic commodity. It also useful to treat any diseases and motivated some researchers to examine their bioactive substances. This examination also need research about multiplication using tissue culture technique. Application various of single cytokinin in different concentration is expected able to influenced shoot multiplication and growth of binahong to keep this plant preservation. The research consist of two experiments that first experiment is monitoring effect of sterilization treatment to contamination level, browning and death. Whereas second experiment is monitoring about the effect media treatment in various of cytokinin (AdSO4, BAP, kinetin and thidiazuron) with different concentration (0,50; 1,00; 1,50; and 2,00) mg/l to shoot multiplication and growth of binahong. In second experiment compiled using RAL statistic method with 10 repetations. Parameters are shoot amount (adventif and lateral shoot), height increment, leaf amount, root amount and callus process. In sterilization treatment shows addition of 70 % alcohol during 3 minutes gived highest success percentage (92,76 %). Lowest success percentage happend in control sterilization treatment (46,99 %). Shoot multiplication and growth of binahong shows in 1 MST. This research produced two various of shoots which is adventif shoot ang lateral shoot. Average great amount of shoots produced by 1,50 mg/l kinetin treatment (2,10 adventif shoot) and 1,50 mg/l BAP (3,90 lateral shoot). Control media not produced both of shoots. MS media with addition 0,50 mg/l kinetin showed average height increment and the best amount of leaves are 4,33 cm and 4,70 sheet. In every treatment shows root formation with greatest number produced by control media (8,80 roots). Callus formed in great part of explants that planted in treatment media except in AdSO4 (0,50; 1,00; and 2,00) mg/l and control media. Conclusion of this research is addition various of cytokinin with different concentration in MS media have obvious influental to the parameters.
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Judul: Konstruksi aritmetika kurva eliptik F(2m) supersingular dan non-supersingular untuk skema kunci publik ElGamal
Abstrak: Algoritme ElGamal adalah salah satu algoritme kunci publik dengan aritmetik modular p yang mempunyai struktur grip siklik Z(p). Tingkat keanaman algoritme ini terletak pada pemecahan masalah logaritme diskret dari Z(p). Akan tetapi, tingkat keamanan tadi tahun ke tahun semakin menurun yang disebabkan kemampuan pemecahan algoritme diskret semakin meningkat. Untuk memenuhi tingkat keamanan yang memadai dibutuhkan p yang cukup besar yang menyebabkan proses enkripsi dan dekripsi menjadi lambat.
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