Judul: Factors Affecting the Bulk Black Tea Export from Indonesia to Main Destination Countries
Abstrak: Komoditas teh hitam curah Indonesia merupakan komoditas ekspor unggulan Indonesia yang cenderung mengalami penurunan volume ekspor ke negara-negara tujuan utama yakni negara Malaysia, Rusia, dan Amerika Serikat pada tahun 2002 hingga 2021. Tujuan penelitian ini adalah menganalisis faktor-faktor yang memengaruhi ekspor teh hitam curah Indonesia ke negara tujuan utama. Metode analisis dalam penelitian ini menggunakan regresi data panel melalui pendekatan Fixed Effect Model (FEM) dengan variabel independen seperti volume ekspor teh hitam curah Indonesia, produksi teh Indonesia, harga ekspor teh hitam curah Indonesia, nilai tukar riil rupiah terhadap mata uang negara tujuan utama, GDP per kapita negara tujuan utama, dan jumlah populasi negara tujuan utama. Pada analisis regresi data panel diperoleh hasil bahwa variabel produksi teh Indonesia, harga ekspor teh hitam curah Indonesia, nilai tukar riil rupiah, dan jumlah populasi negara tujuan utama berpengaruh signifikan terhadap volume ekspor teh hitam curah Indonesia ke negara tujuan utama. Variabel GDP per kapita negara tujuan utama tidak berpengaruh signifikan terhadap volume ekspor., The Indonesian bulk black tea commodity is Indonesia’s leading export commodity, which has experienced a decrease in export volume to its main destination countries, namely Malaysia, Russia, and the United State, from 2002 to 2021. The purpose of this study is to analyze the factors influencing Indonesian bulk black tea exports to these main destination countries. The method of analysis used in this study is panel data regression with the Fixed Effect Model (FEM) with a few variables such as Indonesian bulk black tea export volume, Indonesian tea production, Indonesian bulk black tea export prices, the real exchange rate of the rupiah, GDP per capita of the main destination countries, and population size of the main destination countries. The results indicate that Indonesian bulk black tea export prices, the real exchange rate of the rupiah, and the population size of the main importeer countries have a significant effect on the export volume of Indonesian bulk black tea. The GDP per capita of the importeer countries does not show a significant effect on export volume.
Keyword: Ekspor Teh, Data Panel, Teh Hitam Curah

Judul: Analisis Daya Saing dan Faktor-Faktor yang Memengaruhi Permintaan Ekspor Teh Hitam Indonesia ke Negara Tujuan Ekspor
Abstrak: Indonesia is one of black tea exporting countries in the world. The purposes of this research is to analyze the competitiveness and factors affecting demand for Indonesian exports of black tea in export destination countries. The analytical methods used in this study are Revealed Comparative Advantage (RCA), Export Product Dynamics (EPD) and gravity model analysis. The export destination countries of Indonesian black tea are Russian Federation, Pakistan, Malaysia, United Kingdom, United States, Germany, Poland, United Arab Emirates, Ukraine and Netherlands in the periods of 2007-2013. RCA analysis shows that black tea Indonesia has a high competitiveness in the export destination countries. EPD analysis reveals that Indonesian black tea export to Pakistan, Poland, Russian Federation and Ukraine is under the Rising Star, and United Arab Emirates and the United Kingdom is under the Falling Star, while Germany, Malaysia, Netherlands and the United States is under the Lost Opportunity. The results of the analysis of gravity models show that real GDP export destination countries, GDP per capita of Indonesia, the real exchange rate of export destinations, the price of black tea exports and economic distance are variables significantly influencing demand for black tea export.
Keyword: Bogor Agricultural University, RCA., gravity model, EPD, competitiveness, black tea

Judul: Synthesis of Biphasic Calcium Phosphate Made of Eggshells Through A Hydrothermal Method
Abstrak: Biphasic Calcium Phosphate mixed of hydroxyapatite and tricalcium phosphate. A hydrothermal method of synthesizing by mixing CaO as calcium source and (NH4)2HPO4 as phosphate source with distilled water. CaO got from calcination process made of eggshells. All samples were synthesized using hydrothermal reactor then followed by sintering process. The molar ratio of Ca and P for all samples was 0.5 M : 0.3 M. Hydrothermal temperature and sintering temperature were variated they are 250 ºC, 300 ºC for hydrothermal and 800 ºC, 900 ºC, 1000 ºC for sintering, higher treatment temperature, tricalcium phosphate appears. Final results of synthesis were characterized by using X-ray Diffraction and Fourier Transform Infrared. X-ray Diffraction patterns was ecompared with database Join Committee on Powder Diffraction Standards and found tricalcium phosphate and hydoxyapatite.
Keyword: biphasic calcium phosphate, hydrothermal, hydroxyapatite, tricalcium phosphate