Judul: Klasifikasi Habitat Dasar Perairan Dangkal Gugusan Pulau Pari dengan Menggunakan Citra WorldView-2
Abstrak: The habitat of shallow water is currently in serious threats resulted by human activities and natural impacts. The information of the shallow water conditions can be known by remote sensing, one example was the habitat of shallow water classification mapping using high resolution satellite imagery. The purpose of this study was to classify habitat of benthic communities using different composite imagery and the results of water column correction imagery. Classification methods used supervised classification with a classification scheme of habitat 14 class. Classification accuracy results benthic habitat of shallow water that were of 40,28% (567 on the composite of canal) and 50,34% on the Lyzenga transformation of the canal at 1 (427,3 nm) and 3 (546,2 nm). The value of the accuracy of the results into 7 classes were 52,08% (colour composite) and 62,76% (Lyzenga algorithm). Accuracy results fairly represented the basic habitat mapping in shallow waters.
Keyword: WorldView-2, Lyzenga, composite, classification, accuracy

Judul: Pemetaan Habitat Dasar Perairan Dangkal Menggunakan Citra Satelit WorldView-2 dengan Skema Klasifikasi Supervisi dan Koreksi Kolom Air di Perairan Pulau Tunda.
Abstrak: Remote sensing satellite is an ideal platform to get geospatial information of shallow sea waters. The accuracy of the image is a fundamental problem in benthic habitat mapping shallow waters. This research aims to mapping benthic habitat from WorldView-2 imagery with scheme classification in Tunda Island. The method used was image classification guided by the composite channel and image enhancement with depth invariant index algorithms. Field survey was conducted to observe directly the existing objects in the image. The bentihc habitats were found as many as 10 habitat classes then reduced to 6 habitat classes. Image classification shows the basic habitat of rubble and combination of coral and rubble almost dominated the whole area of observation. The accuracy test results of supervised classification with depth invariant index showed the greater accuracy values than using other with the value reached 74.42% in 6 habitat classes scheme.
Keyword: mapping, WorldView-2, benthic habitat, accuracy, Tunda Island

Judul: Definisi zat besi ( Fe ) pada anak babi
Abstrak: Dalam bidang sub sektor peternakan, ternak babi mempunyai prospek yang cukup baik untuk dikembangkan dalam rangka meningkatkan eksport non migas. Namun anak-anak babi yang sedang menyusu sering mengalami defisiensi zat besi (Fe). Bila masalah ini tidak segera ditanggulangi, peternak akan mengalami kerugian. Zat besi dapat diperoleh dari makanan yang berasal dari hewan (tepung tulang, tepung ikan, tepung daging, "skimmed milk"); tumbuh-tumbuhan (leguminosae, rumput-rumputan, biji-bijian) dan mineral alam (Girindra, 1979). Dalam tubuh hewan, zat besi berperanan sebagai pembawa 02 ke seluruh jaringan, juga sebagai pembawa oksigen pernafasan di dalam sel urat daging (Underwood, 1981). Dalam duodenum dan yeyenum bagian atas, besi dalam bentuk ferro akan diserap. Penyerapan ini akan diatur berdasarkan teori "mucosal block" dari Granick. Kemudian dalam plasma darah, besi akan berikatan dengan B₁ globulin dan membentuk transferrin, yang akan segera dibawa ke seluruh jaringan. Kelebihan besi akan diikat oleh apoferritin dan membentuk ferritin yang ditimbun sebagai besi cadangan, terutama di hati. Bila kapasitas besi yang dapat disimpan sebagai ferritin telah jenuh, maka besi akan ditimbun sebagai hemosiderin. Zat besi dalam jumlah yang sedikit akan diekskresikan melalui pengelupas- an epitil, tinja, air kemih, cairan empedu, keringat. ...
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