Judul: Faktor-faktor yang Memengaruhi Belanja Impulsif di Marketplace pada Konsumen Muslim Jabodetabek
Abstrak: Perkembangan teknologi dan penggunaan marketplace berdampak pada perilaku impulsif masyarakat dibidang keuangan. Penelitian ini bertujuan menganalisis faktor-faktor yang memengaruhi belanja impulsif di marketplace pada konsumen muslim Jabodetabek. Sampel penelitian berjumlah 200 responden dari pengguna platform marketplace yang beragama Islam dan berdomisili di wilayah Jabodetabek. Hasil analisis data dengan menggunakan metode regresi linier berganda menunjukkan bahwa terdapat pengaruh yang positif dan signifikan antara iklan dan pendapatan terhadap perilaku belanja impulsif.
Keyword: Impulse Shopping, Muslim Consumer, Marketplace, Multiple Linear Regression

Judul: Faktor-faktor yang Memengaruhi Perilaku Pembelian Impulsif dalam Belanja melalui Platform E-commerce pada Konsumen Muslim
Abstrak: Kegiatan belanja online meningkat pesat saat pandemi Covid-19, didukung dengan meningkatnya persentase penetrasi pengguna internet disertai adanya platform e-commerce yang mudah dijangkau mendorong perilaku konsumtif penggunanya (pembelian impulsif). Pembelian impulsif merupakan perilaku pembelian tanpa perencanaan yang terjadi secara spontan, Islam melarang umatnya bersikap israf dan tabdzir dalam konsumsi. Penelitian ini bertujuan menganalisis faktor-faktor yang memengaruhi perilaku pembelian impulsif dalam belanja melalui platform e-commerce pada konsumen muslim. Metode analisis yang digunakan dalam penelitian ini yaitu analisis deskriptif dan SEM-PLS. Sampel yang diperoleh sebanyak 294 responden secara online dari pengguna platform e-commerce yang beragama Islam dan berdomisili di Jawa Barat. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang positif dan signifikan hubungan antara religiusitas terhadap sikap. Namun, perilaku pembelian impulsif tidak dipengaruhi oleh program promosi dan kemudahan yang dirasakan. Oleh karena itu, lembaga terkait diharapkan dapat memberikan edukasi terkait managemen keuangan pada konsumen muslim., Online shopping activities has been increasing rapidly during the Covid-19 pandemic, this also contributed by the increasing percentage of internet user penetration along with availability of easy-to-reach e-commerce platform that encourages user’s consumptive behavior (impulsive buying). Impulsive buying behavior is an act of users on spontaneously buying products without consideration, Islam forbids its people to be israf and tabdzir in consumption. This study aims to analyze the factors that influence the impulsive buying behavior of Muslim consumers shopping through e-commerce platform. The analytical method used in this research is descriptive analysis and SEM-PLS. The sample obtained was 294 respondents online from Muslim e-commerce users in West Java. The results showed that there was a positive and significant relationship between religiosity and attitude. However, impulsive buying behavior is not influenced by promotional programs and perceived easiness. Therefore, the institutions have to educated muslim consumers about financial management.
Keyword: E-commerce, Pembelian Impulsif, Konsumen Muslim, SEM-PLS

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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