Judul: Pembuatan Toolbox Scilab untuk Model Prediksi Berbasis Automatic Clustering dan Fuzzy Logical Relationships
Abstrak: Prediksi jumlah mahasiswa baru IPB menggunakan automatic clustering dan fuzzy logical relationships telah dilakukan oleh Abdulloh (2015). Namun perhitungannya masih dikerjakan secara manual sehingga menyulitkan penentuan berbagai nilai parameter dalam model yang dihasilkan. Penelitian ini menghasilkan sebuah perangkat lunak untuk melakukan perhitungan prediksi secara automatis. Model perhitungan yang dikembangkan berbentuk toolbox Scilab. Hasil penelitian menunjukkan bahwa hasil prediksi dipengaruhi oleh nilai parameter. Penggunaan nilai parameter yang tepat menghasilkan kualitas prediksi yang lebih baik.
Keyword: automatic clustering, fuzzy logical relationship, prediction, toolbox

Judul: Pendekatan Logika Fuzzy untuk Memprediksi IPK Akhir Mahasiswa Matematika Institut Pertanian Bogor
Abstrak: Keberhasilan seorang mahasiswa dapat dilihat dari indeks prestasi yang dicapainya. Indeks Prestasi Kumulatif (IPK) diekspresikan tidak saja secara numeris, tetapi juga direpresentasikan dalam bentuk kualitatif secara linguistik. Tujuan dari penelitian ini adalah untuk menentukan IPK Akhir menggunakan pendekatan logika fuzzy serta memprediksi rata-rata IPK Akhir mahasiswa Matematika IPB berdasarkan IPK Tingkat Persiapan Bersama (TPB) dan huruf mutu mata kuliah Aljabar Linear, Pemrograman Linear, Analisis Numerik, Pengantar Teori Peluang serta Analisis Real yang diperoleh sebelumnya.
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Judul: Mercury Toxicity and It’s Effect on Histopathology Change of Nile Tilapia (Oreochromis niloticus).
Abstrak: Nile tilapia (Oreochromis niloticus) is one of fish species that oportunity to contaminated with mercury. The effects of pollutants can damage living organisms organs and can cause death. The effects caused mercury had acute or chronic character. The aims of this study are to determine threshold and acute toxicity of mercury chloride (HgCl2) of Nile tilapia (Oreochromis niloticus), to assess the effect of mercury chloride (HgCl2) on several biometric parameters (survival, growth rate of average daily weighted, liver condition, bile and reproductive variability of Nile tilapia (Oreochromis niloticus), assess the level of damage to the histological structure of the gills, liver and kidney of Nile tilapia (Oreochromis niloticus) caused mercury chloride (HgCl2) exposure. This study was conducted from February to June 2013. Nile Tilapia (Oreochromis niloticus) were used in this study were female with average weight 20 grams or 11-13 cm length range. Toxicant materials used in this study was mercury chloride (HgCl2). Fish were reared in each aquarium 60x40x30 containing 48 liters of water. This study consists of three stages: a preliminary test, acute test, and sub-chronic test. To determine the changes in biometric condition of tilapia approximated by measuring the survival rate (SR), the growth rate of average daily weight , the content of mercury in the fish organs, hepatosomatic index (HSI), the relative bile volume (VER), gonadal soamtic index (IKG), fecundity and oocit diameter, tissue damage caused by mercury in fish organs by making histological preparations stained with hematoxylin and eosin. The median lethal concentration (96 hr, LC50) of Mercury Chloride was calculated as 1,64 mgL--1.The survival rate was highest in the control treatment (46,67 %) . Mercury chloride with concentration 0.196 mgL--1 show significant effect to changes HSI and relative bile volume, and oocyte diameter of Nile tilapia (p < 0,05). Mercury chloride with a concentration of 0,164 mgL-1 and 0,196 mgL-1 have not a significant effect on the growth rate of weight, gonadal somatic index and fecundity of Nile tilapia (p > 0,05). Mercury chloride cause damage to gills (hyperplasia, hypertrophy, proliferation and neukrosis), liver (hyperplasia, hemorhage, shrinkage of hepatocytes, proliferation and neukrosis) and kidney (hyperplasia, hemorrhage, shrinkage of the glomerulus, proliferation and neukrosis).
Keyword: Nile tilapia, Hepatosomatic indexs (HSI), histopathology