Judul: Analysis of Humidity, Air Temperature and Rainfall on Peat Fire Case in Jambi
Abstrak: Kabupaten Tanjung Jabung Timur Jambi memiliki permasalahan serius pada kebakaran lahan gambut. Pengaruh kelembapan, suhu udara dan curah hujan seringkali dikaitkan dengan pengaruh iklim yang memberikan kondisi ideal untuk terjadinya kebakaran. Informasi hotspot yang didapatkan dari penginderaan jauh melalui satelit Terra dan Aqua MODIS dapat digunakan untuk mengetahui jumlah hotspot dan peluang terjadinya kebakaran. Tujuan penelitian ini adalah untuk menganalisis hubungan antara kelembapan, suhu udara dan curah hujan terhadap kejadian kebakaran hutan dan gambut di Kabupaten Tanjung Jabung Timur Jambi pada tahun 2017-2019. Hasil penelitian menunjukkan bahwa analisis korelasi kelembapan, suhu udara, curah hujan terhadap hotspot di Kabupaten Tanjung Jabung Timur dalam kurun waktu 2017-2019 memperlihatkan bahwa ketiganya memberikan sumbangan pengaruh terhadap jumlah hotspot. Kelembapan merupakan variabel dengan nilai korelasi tertinggi, sebesar -0,569. Penurunan kelembapan udara yang diikuti oleh penurunan curah hujan disertai terjadinya peningkatan suhu udara mulai bulan Juni sampai bulan September 2019 menyebabkan terjadinya peningkatan hotspot tertinggi pada bulan September 2019 yang menyebabkan terjadi peningkatan kejadian kebakaran di Tanjung Jabung Timur, Jambi., Tanjung Jabung Timur Jambi has a serious problem with peatlands fires. The effects of humidity, air temperature and rainfall are often associated with climatic influences that provide ideal conditions for fire to occur. Hotspot information obtained from remote sensing through the Terra and Aqua MODIS satellites can be used to determine the number of hotspot and the chance of fire occurrences. The research objective was to analyze the relationship between air humidity, air temperature and rainfall to the forest fires in Tanjung Jabung Timur Regency, Jambi during 2017-2019. The results showed that analysis of correlation between air humidity, air temperature, and rainfall on hotspot occurrences at Tanjung Jabung Timur shows that all three variables contributed to the number of hotspot. Humidity was the variable with highest correlation of -0,569. The decrease of humidity that followed by a decrease in rainfall and an increase in air temperature from June to September 2019 led to the highest hotspot in September 2019, which resulted to an increase of forest fire occurrences in Tanjung Jabung Timur, Jambi.
Keyword: Fire, Humidity, Peatlands, Rainfall, Temperature

Judul: Analysis of Hotspots, Precipitation, and Sea Surface Temperature Anomalies in East Tanjung Jabung Regency, Jambi
Abstrak: Kebakaran hutan dan lahan merupakan permasalahan serius yang terjadi setiap tahun di Indonesia. Penelitian ini bertujuan mengidentifikasi keterkaitan antara titik panas (hotspot), curah hujan, dan anomali Sea Surface Temperature (SST) sebagai indikator potensi terjadinya kebakaran gambut di Kabupaten Tanjung Jabung Timur. Penelitian ini dilaksanakan pada bulan September-Desember 2023. Data yang digunakan adalah data sekunder. Uji korelasi dilakukan antara data hotspot, curah hujan bulanan, dan SSTA Nino 3.4 pada tahun 2015-2022 untuk mengetahui adanya hubungan antara curah hujan dengan jumlah hotspot yang terdeteksi dan faktor yang memengaruhinya. Hasil dari penelitian ini adalah hubungan hotspot dengan curah hujan berkorelasi negatif dengan nilai r sebesar -0.401 yang termasuk dalam kategori cukup, dan hubungan hotspot dengan anomali SST berkorelasi positif. Hal ini menunjukkan bahwa jumlah hotspot di Kabupaten Tanjung Jabung Timur pada tahun 2015-2022 berkaitan erat dengan curah hujan, namun tidak terlalu erat dengan SST anomalies., Forest and land fires are a serious problem that occurs every year in Indonesia. This research aims to identify the relationship between hotspots, precipitation and Sea Surface Temperature Anomalies (SSTA) as indicators of the potential for peatland fires in East Tanjung Jabung Regency. This research was conducted in September-December 2023. The data used is secondary data. Correlation tests were carried out between hotspot data, monthly precipitation, and SSTA Nino 3.4 in 2015-2022 to determine the relationship between precipitation, the number of hotspots detected, and the factors that influence them. The results of this research are that the relationship between hotspots and precipitation is negatively correlated with an r value of -0.400 which is included in the sufficient category, and the relationship between hotspots and anomaly SST is positively correlated. These findings showed that the number of hotspots in East Tanjung Jabung Regency is closely related to precipitation but not too closely with SST anomalies.
Keyword: curah hujan, titik panas, kebakaran gambut, nino 3.4

Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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