Judul: Transportation infrastructure, interregional linkages and economic growth of the Jakarta, Bogor, Depok, Tangerang and Bekasi Region
Abstrak: Infrastructure is a requisite for a regional economic growth through economic and non - economic activi ties. In particular, a transportation infrastructure in a region, among others, provides a valuable contribution towards the economic of such regional as well as of its neighborhood. This research aims to analyze the impact of the transport ation infrast ructure ( highway, toll, and rail track) on the regional economic growth as well as on its neighborhood. Moreover, this research also intends to compare the impact of several transporta tion infrastructure suc h as highway, toll, railway , and their combinatio n on economic regional. The observed regional in this research are Jakarta, Bogor, Depok, Tangerang, Bekasi often called JABODETABEK area . The construction of transportation in regional is a backbone for formation of a networking in JABODETABEK region. The time series data of four economic sectors of the region in the period 1990 – 2006, is estimate on the Two Stages Least Square (2SLS) research model, then followed by a simulation using SIM N LIN procedure. The research model is developed using t ransmission mechanism framework that shows a sequent of transportation infrastructure investment. Firstly, such investment will affect the number of economic units, then followed by its impact on the production volume of four observed sectors, and finally on the regional economic growth and its neighborhood’s.
Keyword: Transportation infrastructure, Interregional linkages, Economic growth, JABODETABEK area

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: 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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