Judul: Analisis kesesuaian dan daya dukung ekosistem terumbu karang untuk pengembangan Wisata Bahari di Tuapejat Kabupaten Kepulauan Mentawai:
Abstrak: The area of coral reef ecosystem that exists in North Sipora (Tuapejat) reaches 55.0716 krn2, which consists of 30.7747 km2fi.inging reef and 24.2969 km2 shoal reefs. From the observation of the coral reef condition using LIT method in 13 permanent transect stations it can be seen that there were 6 stations that belong to coral reefs of good category, and 7 stations that belong to coral reefs of sufficientlaverage category. The category division refers to: 0 - 24.9% belonging to bad condition; 25 - 49.9% belonging to average condition, 50 - 74.9% belonging to good condition; and 75100% belonging to very good condition( Gomes and Yap, 1989). The percentage of life form coral reefs cover in general was dominated by hard coral Non Acropora. Coral of the genus Acropora is only dominant in station 12 and station 13. The other locations were dominated by Non Acropora from the genus Porites, Pocillopora, and Heliopora.
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Judul: Spatial Distribution of Benthic Communities in The Kepulauan Seribu Marine National Park, DKI Jakarta
Abstrak: Dalam beberapa dekade terakhir, diketahui bahwa tutupan terumbu karang di Kepulauan Seribu mengalami degradasi akibat dari pengaruh non-antropogenik (perubahan ekologis, faktor alam) dan pengaruh antropogenik (kegiatan manusia) seperti pariwisata dan perikanan tangkap. Taman Nasional Kepulauan Seribu memiliki sistem zona pengelolaan perairan yang berfungsi melindungi ekosistem bahari yang ada di dalamnya seperti ekosistem terumbu karang. Terdapat empat zona perairan yaitu ada zona inti, zona perlindungan, zona pemanfaatan wisata, dan zona pemukiman. Penelitian ini bertujuan mengetahui sebaran komunitas bentik, sebaran lifeform karang keras, dan sebaran genus karang lunak serta persentase tutupannya berdasarkan zonasi di Perairan Taman Nasional Kepulauan Seribu, DKI Jakarta. Metode yang digunakan adalah Underwater Photo Transect dengan ukuran 58 cm x 44 cm. Berdasarkan pengamatan di empat zona perairan tersebut, diketahui bahwa kategori abiotic merupakan yang tertinggi dibandingkan dengan enam kategori lainnya dengan total nilai tutupan berada pada rentang 40 - 50%. Kondisi tutupan karang keras hidup di perairan zona inti, zona pemanfaatan, dan zona pemukiman masuk ke dalam kategori cukup (25 - 49,9%). Adapun tutupan karang keras hidup di perairan zona perlindungan masuk ke dalam kategori buruk (0 - 24,9%). Sebaran genus karang lunak pada zona inti didominasi oleh genus Sarcophyton (0,28%), zona pemanfaatan oleh genus Gorgonian (0,13%), zona pemukiman oleh genus Gorgonian (1,04%), dan zona perlindungan oleh genus Nephthea (0,15%)., In the last few decades, it has been known that coral reef cover in the Kepulauan Seribu has been degraded as a result of non-anthropogenic influences (ecological changes, natural factors) and anthropogenic influences (human activities) such as tourism and capture fisheries. The Kepulauan Seribu Marine National Park has a water management zone system that functions to protect the marine ecosystems in it such as coral reef ecosystems. There are four water zones, namely the core zone, protection zone, tourism utilization zone, and residential zone. This study aims to determine the distribution of benthic communities, distribution of hard coral lifeforms, and distribution of soft coral genera and their percentage of cover based on zoning in the waters of the Kepulauan Seribu Marine National Park, DKI Jakarta. The method used is Underwater Photo Transect with a size of 58 cm x 44 cm. Based on observations in the four water zones, it is known that the abiotic category is the highest compared to the other six categories with a total cover value in the range of 40 - 50%. The condition of living hard coral cover in the waters of the core zone, utilization zone, and settlement zone was in the sufficient category (25 – 49,9%). As for the live hard coral cover in the waters of the protection zone, it is in the bad category (0 – 24,9%). The distribution of soft coral genera in the core zone is dominated by Sarcophyton (0,28%), the utilization zone by Gorgonian (0,13%), the settlement zone by Gorgonian (1,04%), and the protection zone by Nephthea (0,15%) .
Keyword: category, coral, cover, Kepulauan Seribu Marine National Park, zone

Judul: Pemodelan Dinamika Glukosa dengan Persamaan Hovorka menggunakan Metode ODE 45 untuk Kasus Diabetes Tipe 1.
Abstrak: Type 1 Diabetes is a case where beta cell in pancreas cannot produce insulin properly. On a type 1 diabetes case, some insulin had to be added into the bloodstream. This simulation used Hovorka equations and ODE 45 methods in MATLAB. To know the amount of dosage for insulin that a type 1 diabetes case need, also how the kinematics and dynamics look like for the glucose rate in the bloodstream can be done by using this simulation. Some variation on the amount of insulin, injection time and weight had been done to get the optimum result of glucose rate in the bloodstream. The result from this simulation is a 70 kg weigh need insulin injection in the morning for about 2 dL, and 21 dL each for afternoon and night times, all of injection time is an hour after eating.
Keyword: ODE 45, Hovorka method, Insulin, Type 1 Diabetes, Blood glucose