Judul: Pembangunan Infrastruktur Jalan dan Jumlah Penduduk Terhadap Pertumbuhan Ekonomi DKI Jakarta Periode 2002-2012
Abstrak: The role of road infrastructure is needed to improve economic growth in Jakarta. Infrastructure is a factor that is needed for economic development. The aim of this research is to analyze the impacts of road infrastructure development and population on economic growth in Jakarta. This research use the model of data panel 5 kotamadya in city in 2002-2012. The result showed that the length of roads (PJ ) positive influence on economic growth in Jakarta population ( PNDDK ), of investing an alien ( PMA ) positive influence on economic growth in Jakarta and investment in the country ( PMDN ) positive influence on economic growth in Jakarta. To create economic growth in Jakarta the role of the government required quite big in terms of facilities and infrastructure adequate infrastructure, such as mass transportation construction to reduce traffic congestion and conduct fair distribution development.
Keyword: Panel Data, economic growth, Population, frastructure, Bogor Agricultural University (IPB)

Judul: The  impact  of  infrastructure  development  to  economic  growth  in  sukabumi
Abstrak: Infrastruktur merupakan roda penggerak pertumbuhan ekonomi.Ketersediaan infrastruktur menjadi tuntutan yang sangat penting dalam menjalankan roda perekonomian suatu wilayah. Tujuan penelitian ini adalah untuk menjelaskan perkembangan infrastruktur di Kota Sukabumi dan menganalisis pengaruh dari infrastruktur panjang jalan, listrik, air bersih, ranjang rumah sakit dan sekolah terhadap pertumbuhan ekonomi di Kota Sukabumi. Analisis ini menggunakan metode analisis regresi berganda berbasis OLS (Ordinary Least Square) dengan menggunakan data sekunder time series di Kota Sukabumi tahun 1990-2012. Variabel yang digunakan dalam penelitian ini adalah Produk Domestik Regional Bruto (PDRB) sebagai pengukuran output, panjang jalan (Km), jumlah energi listrik yang terjual (kWh), volume air bersih yang tersalurkan (m 3 ), jumlah ranjang rumah sakit yang tersedia ( unit) dan jumlah sekolah (unit). Hasil menunjukan bahwa berdasarkan model dalam analisis, infrastruktur jalan, listrik dan sekolah memberikan pengaruh negatif terhadap pertumbuhan ekonomi di Kota Sukabumi.Sedangkan infrastruktur air bersih dan ranjang rumah sakit memberikan pengaruh yang positif dan memberikan kontribusi yang signifikan terhadap pertumbuhan ekonomi di Kota Sukabumi., Infrastructure is a driving wheel of economic growth. The availability of infrastructure became an important demand in running the economic w heel of an area. The purpose of this research was to explain the infrastructure developing and analyze the influence of long road, electricity, clean water, hospital bed and school to economic growth in Sukabumi. The analysis was used multiple regression analysis method with OLS (Ordinary Least Square)-based and time series secondary data in Sukabumi from 1990 to 2012. The variable that used in this research was Gross Domestic Regional Product (GDRP) as output measurement, the long road (Km), total of sold-electricity (kWh), the volume of accessed-clean water (m 3 ), total of available-hospital bed (unit) and total of school (unit). The result showed based on model analysis, the long road, electricity and school infrastructure gave a negative influence to economic growth in Sukabumi, whereas clean water and hospital bed infrastructure gave a positive influence and significant contribution to economic growth in Sukabumi.
Keyword: Infrastruktur, OLS, pertumbuhan ekonomi

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