Judul: Studi terhadap Perencanaan Premi Optimal dengan Reinstatements pada Perusahaan Reasuransi.
Abstrak: Reinsurance is an underwrite all or a portion of the insurance risk. Insurer paid a number of premiums to reinsurer and that premiums would be income for reinsurer. Premium plan is very important for reinsurer facing risks of submitted claims. Premium plan in this paper is premium plan of reinsurance with reinstatement. This premium is not paid in the beginning of the contract, but it is paid when the loss of the reinsurer exceed maximum bound capacity of reinsurer. For illustration purpose, it is assumed that the reinsurer’s loss is satisfied a truncated exponential distribution. Reinsurance contract minimizes the expectation of square the difference between the total premium income and the loss of the reinsurance, therefore it is said to be optimal. Minimizing the expectation of square all over premium plans can be viewed as a credibility problems. Covariance matrix of the explanatory random variables of premium plan with reinstatement is invertible, so that the premium plan has a unique solution. Optimal premium plan are unbiased and nonnegative.
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Judul: Asuransi Optimal dan Kebijakan Reasuransi dalam Proses Risiko
Abstrak: Insurer has a risk to bankrupt because the distribution of its claim size has a thick tail. This means that the probability of a big claim is relatively high. For this situation, insurer divides a part or all risk of to other insurer (reinsurance) to minimize the expected maximal losses. Insurer can optimize insurance policies, reinsurance, or both. When insurer optimizes insurance policies for minimizing the expected maximal losses, insurer limits its claim size to be paid by insured. When insurer optimizes reinsurance, insurer do not limit the claim size submitted by insured but insurer just paid a part from the claim submitted by insured and the rest being paid reinsurance. When insurer uses the combination polices, insurer limits the claim size submitted by insured and insurer paid a part from the claim it and the rest being paid by reinsurance. The result of optimizes insurance policies, reinsurance, or both is a stop loss policy to minimize the expected maximal losses.
Keyword: reinsurance., insurance policies, insurance, risk

Judul: Identifikasi Spesies Fabavirus Penyebab Penyakit Mosaik pada Tanaman Nilam
Abstrak: Survei di daerah Jawa Barat dilakukan untuk mendeteksi infeksi Fabavirus pada tanaman nilam (Pogostemon cablin Benth) dan untuk mengidentifikasi spesies virus berdasarkan sikuen nukleotidanya. Dari 25 sampel tanaman nilam yang menunjukkan gejala mosaik dan variasinya, dua sampel didapatkan dari Cicurug, Sukabumi dan dua lainnya berasal dari Gunun Bunder, Bogor positif diinfeksi oleh Fabavirus (dibuat dengan nama CG15 dan CG16 & GB27 dan GB29, berturut-turut) berdasarkan enzyme-linked immunosorbent assay (ELISA) menggunakan antiserum untuk Fabavirus. Keberadaan infeksi Fabavirus pada sampel tanaman nilam dikonfirmasi dengan uji molekuler melalui reverse transcription-polymerase chain reaction (RT-PCR) menggunakan primer untuk Fabavirus. Untuk menguraikan spesies dari isolat virus, produk RT-PCR CG16 dan GB29 disikuensing langsung tanpa kloning pada vektor plasmid. Sikuen terdiri dari sekitar 322 nukleotida, berdasarkan primer yang didesain [BBWVVSSP (5'-GTBTCDAGTGCTYTDGAAGG-3', B = C, G, or T; D = A, G, or T; Y = C ог T) and BBWVKMRM (5'- TDGWDCCATCVAGICKCATTTT-3', W = A or T; V = A, C, or G; I = Inosine; KG or T)]. Penjajaran sikuen nukleotida mengonfirmasi identitas dari isolat virus sebagai Broad bean wilt virus 2 (BBWV-2). Penelitian ini merupakan laporan pertama keberadaan BBWV-2 penyebab penyakit mosak pada tanaman nilam di Indonesia. Kata kunci: Nilam, Broad bean wilt virus 2.
Keyword: Nilam, Broad bean wilt virus 2