Judul: Pemetaan Provinsi di Indonesia berdasarkan Lapangan Pekerjaan Utama dengan Analisis Korespondensi
Abstrak: In this mapped work, the provinces of Indonesia were on the basis of main job data population aged 15 years and older according to the main employment in 2003, 2005, 2008, 2009, 2010, 2011, and 2012. The configuration of provinces in 2008 and 2009 remained unchanged, with the biggest goodness-of-fit (GF) via Procrustes Analysis (GF = 98.38%). The largest changes on configuration occurred in 2005 and 2012 with the GF was found to be the smallest (GF = 82.92%). The most extreme changes occured in the Aceh Province, Southest Sulawesi, Lampung, and Gorontalo. Both Riau and Riau Islands Provinces which were a result of the expansion area have different characteristics. Riau Province was characterized by agriculture, forestry, hunting, fisheries, wholesale trade, retail trade, restaurants, and hotels while Riau Islands was manufacturing industry, wholesale trade, retail trade, restaurants, and hotels. Based on the GF value of correspondence analysis, the visualization in low dimension is able to explain the variation between 84.23% to 88.93% of the total inertia
Keyword: Bogor Agricultural University (IPB), province, mapping, main industry, correspondence analysis

Judul: Pemetaan Provinsi di Indonesia Berdasarkan Produk Domestik Regional Bruto Menggunakan Analisis Biplot
Abstrak: Government has a responsibility for maintaining welfare development of its people. One of the indicators that can be used to measure human development is the human development index (HDI). This index was created based on three dimensions, i.e. dimension of life expectancy, knowledge and standard of decent living. This paper provides an overview of mapping the provinces based on independent sectors of business field. The provincial mapping is done using biplot analysis. Biplot analysis presents a low-dimensional graphical display, which describes relationship between high-dimensional variables and objects. Provincial mapping can be used to obtain an overview of development between provinces. The result of biplot analysis is able to explain 85.22% information contained in the data, which is called its goodness of fit. Based on the biplot visualization, five groups of provinces are obtained. In the first group, Jakarta has a value above average on the financial sector. On the second and third groups, the agricultural sector contributes significantly to gross regional domestic product. Meanwhile, in the fourth group, Riau and East Kalimantan are the biggest contributor to the trade sector. Finally, in the fifth group, all of the provinces have gross regional domestic product value below the average in all sectors.
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Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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