Judul: Analisis Peran Infrastruktur Terhadap Pertumbuhan Ekonomi Provinsi Jawa Barat
Abstrak: Penyediaan infrastruktur merupakan hal yang sangat penting dalam tahap pembangunan. Infrastruktur memberikan kontribusi terhadap perekonomian daerah dan meningkatkan pembangunan ekonomi dengan memberikan efek langsung maupun tidak langsung. Tujuan penelitian ini adalah untuk menjelaskan perkembangan infrastruktur yang ada di Jawa Barat dan menganalisis peran infrastruktur terhadap pertumbuhan ekonomi di Provinsi Jawa Barat. Analisis ini menggunakan data panel dengan model fixed effect yang menggunakan data di 26 kabupaten / kota Provinsi Jawa Barat dalam kurun waktu 2007-2011. Variabel yang digunakan dalam penelitian ini adalah Produk Domestik Regional Bruto (PDRB) sebagai pengukuran output, panjang jalan (km), jumlah energi listrik terjual (KWh), dan jumlah air bersih yang tersalurkan (m3 ). Hasil menunjukkan bahwa infrastruktur di Jawa Barat terus meningkat. Berdasarkan model dalam analisis, infrastruktur jalan, listrik dan air bersih memiliki efek yang positif dan kontribusi yang signifikan pada pertumbuhan ekonomi daerah dimana infrastruktur listrik memberikan kontribusi terbesar terhadap perekonomian daerah di Provinsi Jawa Barat.
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Judul: Analisis Pengaruh Investasi, Tenaga Kerja, dan Infrastruktur Terhadap Pertumbuhan Ekonomi Provinsi Jawa Barat
Abstrak: Economic growth is one indicator of development success in an area. This study is to analyze the effect of investment, work labour, and infrastructure to economic growth in West Java during the period 1990-2011. This study using time series data of 1990-2011 and it’s utilizes regression analysis of Ordinary Least Square (OLS) and supporting software from Eviews 6 and Minitab. The results of this study indicate that the independent variables FDI, domestic investment, and work labour has a positive and significant relationship to economic growth. It is also found that road length has a negative and significant relationship to economic growth, while government expenditure has not significant effect. Increased of local revenues by goverment should be done with create a conducive invesment climate so that the realization of infrastructure improvements can be accomplished, expanding employment opportunities, and boost government spending to improve the economy of West Java Province
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Judul: Karakteristik Carboxymethyl Chitosan Dengan Variasi Konsentrasi NaOH
Abstrak: Carboxymethyl chitosan is chitosan derivative product obtained from chemical modification. CMCh were made by alkalization process and carboxymethylation process. Factors that affect CMCh characteristics were excess sodium hydroxide in alkalization process, ratio between chitosan and monochloroacetic acid, and carboxymethylation temperature. The objectives of this research were to study the NaOH effect to CMCh characteristics, to learn process of making CMCh, to set the proper concentration of NaOH, and to analyze CMCh characteristics. CMCh yields were 110.72%-114.22%. CMCh pH value were 3.74-4.31. The optimum NaOH concentration to obtain the best CHCh was 10 M. Percentage of CMCh moisture content was 10.70%-11.42%. Ash content and nitrogen content of CMCh were 0.49%-0.50% and 4.52%-4.81%. CMCh viscousity was 8.25 cps. Percentage of CMCh solubility was 61.61%-91.50%. The different functional groups from chitosan which observed in CMCh were C=O group, CH group from alkene functional group, C−O group, and C−O−C group.
Keyword: solubility., functional group, CMCh characteristics, chitosan, carboxymethyl chitosan