Judul: Analysis of the Relationship between Local Currency Settlement (LCS), Exchange Rate, and Total Trade of Indonesia to Malaysia and Thailand in 2018-2021
Abstrak: Dolar Amerika Serikat (USD) mendominasi hampir seluruh pembayaranperdagangan internasional. Salah satu cara yang dilakukan Bank Indonesia untukmempermudah transaksi bilateral sekaligus mengurangi dominasi dolar AmerikaSerikat (USD) adalah dengan melakukan Local Currency Settlement (LCS). Salah duadari negara yang telah melakukan kerja sama LCS dengan Indonesia adalah Malaysiadan Thailand. Penelitian ini bertujuan untuk menganalisis hubungan kausalitas antaravariabel Local Currency Settlement (LCS), Nilai Tukar terhadap dolar AmerikaSerikat, dan Perdagangan Bilateral antara Indonesia-Malaysia dan Indonesia-Thailand. Analisis yang digunakan dalam penelitian ini adalah metode Vector Auto Regression(VAR). Penelitian menggunakan data tahun 2018m2 hingga 2021m7. Hasil penelitianini menunjukkan bahwa variabel LCS memiliki hubungan kausalitas satu arah dengantotal perdagangan Malaysia-Thailand namun tidak memiliki hubungan kausalitas dengan nilai tukar terhadap dolar. Nilai tukar memiliki hubungan kausalitas satu arahdengan total perdagangan Malaysia-Thailand .
Keyword: VAR, Causality Relationship, LCS, Exchange Rates, Trade

Judul: Analisis Faktor-faktor yang Memengaruhi Trade Balance Indonesia dengan ASEAN dan Tiga Mitra Dagang Utama
Abstrak: Trade balance is a variable which forms the national income. During 2008 crisis, trade balance contributes the highestvalue, which is 40 percent. But during periods 2003 until 2012, Indonesia’s trade balance with ASEAN and three main trade partners remains a decreasing trend line. This study aims to analyze the development of Indonesia’s trade balance and analyze factors influencing Indonesia’s trade balance with ASEAN and three main trade partners for period 2003 until 2012, the analysis method used in this study is panel data method, with an annual time series data from 2003 until 2012 and cross section data (Indonesia, Singapore, Malaysia, Philiphina, Thailand, China, Jepang, dan Amerika). Variables used are GDP per capita of Indonesia, GDP per capita of trade partners, rill exchange rate, Indonesia’s money supply, and crisis as a dummy variable. The estimation shows that all variables significantly influence Indonesia’s trade balance and have an impact which is consistent with the studies hypothesis.
Keyword: exchange rate., panel data, trade balance

Judul: Pemurnian dan Karakterisasi Pektinase dari Aspergillus ustus BL5
Abstrak: Pectinase, an extracellular enzymes that degrades pectin to galacturonic acid and pectinat acid. Aspergillus has been reported as a fungi that can produce secondary metabolite and extracellular of enzymes such as hemiselulase, selulase and pectinase. Pectinase plays a vital role in processing industries such as in the production of fruit juice, in fermentation tea leaves and used also at paper and textile industry. This study aimed to purify and characterize the extracellular pectinase from Aspergillus ustus BL5. Extracellular pectinase showed optimum activity with 2% substrate concentration and pH 7, in 120 hours of incubation time with 0,6 U/mg specific activity. The crude enzyme was concentrated with PEG-6000 and ultrafiltration. The crude enzyme of pectinase was purified using Sephadex G-75 gel filtration chromatography. The partial purified enzyme has specific activity 4,14 U/mg. The purity had increase 6,94 than crude enzymes. The optimum temperature and pH were 500 C and 5. The Addition of 0.05 mM CuSO4 can increased enzyme activity to 163.87%.
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