Judul: Analisis Perdagangan Kopi Indonesia di pasaran Kopi Internasional
Abstrak: Tujuan penelitian ini adalah: (a)Mernpelajari berbagai faktor yang berpengaruh terhadap ekspor kopi Indonesia, (b) Mengetahui daya saing l topi Indonesia di pasaran kopi internasional , (c)Mengetahui integrasi pasar kopi Indonesia di pasaran internasional , baik horisontal maupun vertikal (dengan tujuan tersebut penelitian ini diharapkan berguna untuk: Pertimbangan dalam mengevaluasi kebijaksanaan perkopian Indonesia, baik nasional maupun dalam lingkup internasional ; dan sebagai bahan informasi tentang pasaran kopi Indonesia di pasaran internasional)
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Judul: Analisis Daya Saing Ekspor Kopi Indonesia di Pasar Internasional.
Abstrak: Indonesia merupakan pengekspor kopi terbesar keempat di pasar internasional. Kompetisi pasar dan tingginya penawaran kopi di pasar internasional membuat harga berfluktuatif. Penelitian ini bertujuan untuk menganalisis perkembangan ekspor kopi di Indonesia, mengidentifikasi struktur pasar kopi dan menganalisis daya saing kopi Indonesia di pasar internasional. Metode analisis yang digunakan adalah analisis deskriptif, Herfindahl Index, Concentration Ratio, Revealed Comparative Advantages, dan Export Competitiveness Index. Hasil penelitian menunjukkan perkembangan nilai ekspor dan jumlah ekspor kopi Indonesia cenderung meningkat, struktur pasar kopi dunia yang terbentuk adalah pasar oligopoli, dan Indonesia memiliki keunggulan komparatif dan daya saing yang meningkat pada kode HS 090111, memiliki keunggulan kompetitif dan daya saing yang meningkat pada kode HS 090111, HS 090112, HS 090121, dan cenderung tren yang turun pada kode HS 090122.
Keyword: daya saing, kopi, pasar internasional, struktur pasar kopi, keunggulan komparatif, keunggulan kompetitif

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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