Judul: Analisi Port Efficiency Terhadap Perdagangan Bilateral Indonesia di Kawasan ASEAN+6
Abstrak: During the period 2007-2012 Indonesian trade flows from and to the ASEAN +6 countries predominantly transported via sea transport modes so that ports efficiency can increase the volume of trade between Indonesia and ASEAN +6 countries. Gravity model are used to estimate the relationship of panel data port efficiency variable against Indonesian total bilateral trade. The variables used in this study are the per capita GDP of ASEAN +6, per capita GDP of Indonesia, economic distance, port efficiency is proxied by QPI and connectivity and LPI. LPI consists of six constituent components, namely, customs, infrastructure, priced shipment, timeliness, logistik, and trackingtrace. The estimation results of the gravity model of approach shows that the variables significantly positively influence the trade are Indonesia's per capita GDP, per capita GDP of ASEAN +6, QPI, Connectivity, Customs, Timeliness and Infrastructure. While the economic distance variables and priced shipment significantly negatively influence the trade.
Keyword: the gravity model of bilateral trade., port efficiency, ASEAN+6, Bogor Agricultural University (IPB)

Judul: Analisis Efisiensi Infrastruktur Pelabuhan terhadap Arus Perdagangan Bilateral Indonesia-APEC Periode Tahun 2007-2014
Abstrak: Total perdagangan Indonesia dengan negara-negara APEC mencapai 70 persen dari total perdagangan Indonesia ke dunia, hal ini mengindikasikan bahwa APEC adalah pasar yang sangat potensial bagi Indonesia. Selama periode 2007-2014 arus perdagangan Indonesia dari dan ke negara-negara APEC didominasi pengangkutan melalui moda transportasi laut sehingga efisiensi infrastruktur pelabuhan dapat meningkatkan volume perdagangan Indonesia. Gravity Model data panel digunakan untuk mengestimasi hubungan variabel efisiensi infrastruktur pelabuhan terhadap total arus perdagangan bilateral Indonesia di APEC periode tahun 2007-2014. Variabel-variabel yang digunakan dalam penelitian ini adalah GDP per kapita Indonesia, jarak ekonomi, quality of port infrastructure, container port traffic, cost to export, dan burden of custom procedure. Hasil estimasi dengan pendekatan gravity model menunjukkan bahwa variabel yang secara signifikan berpengaruh positif pada total perdagangan Indonesia adalah GDP per kapita Indonesia, jarak ekonomi, QPI, dan CPT. Sedangkan variabel BOCP dan cost to export secara signifikan berpengaruh negatif.
Keyword: APEC, efisiensi infrastruktur pelabuhan, gravity model, perdagangan bilateral

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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