Judul: Analisis Penerimaan Pengguna Layanan PopBox di Jabodetabek Dengan Pendekatan Technology Acceptance Model (TAM)
Abstrak: PopBox merupakan layanan loker otomatis untuk pengiriman dan penerimaan barang. Penelitian ini bertujuan untuk mengidentifikasi karakteristik pengguna PopBox yang terdapat di Jabodetabek serta menganalisis penerimaan pengguna layanan PopBox yang terdapat di Jabodetabek. Penelitian ini menggunakan analisis deskriptif dan Technology Acceptance Model (TAM). Data dikumpulkan melalui penyebaran kuesioner kepada responden. Metode yang digunakan untuk pengambilan sampel ialah Purposive Sampling. Analisis data menggunakan Structural Equation Modeling (SEM) dengan pendekatan Partial Least Squares (PLS). Berdasarkan hasil penelitian, pengguna layanan PopBox di Jabodetabek memiliki persepsi bahwa terdapat kemudahaan dan kegunaan pada layanan PopBox yang memengaruhi penerimaan pengguna layanan PopBox yang terdapat di Jabodetabek.
Keyword: penerimaan pengguna, PopBox, purposive sampling, SEM-PLS, TAM

Judul: Analysis of Perceived Ease of Use and Attitudes of  Paylater Users in Jabodetabek Based on Consumer Characteristics
Abstrak: Paylater merupakan salah satu tren financial technology yang menawarkan layanan pembayaran secara mencicil. Semakin bertambahnya pengguna paylater dan tawaran kemudahan membuat paylater disukai penggunanya. Tujuan penelitian ini yaitu untuk menganalisis hubungan dan pengaruh karakteristik konsumen dan persepsi kemudahan terhadap sikap pengguna paylater di Jabodetabek. Penelitian ini menggunakan pendekatan kuantitatif dengan desain cross sectional dan non probability sampling sebagai teknik penentuan contoh. Jumlah responden pada penelitian ini yaitu 278 orang yang merupakan pengguna paylater dengan domisili Jabodetabek dan berusia minimal 17 tahun. Pengolahan data dilakukan menggunakan Microsoft Excel, SPSS 26, dan SmartPLS. Responden penelitian ini didominasi oleh usia Generasi Z, berjenis kelamin perempuan, berstatus lajang, pelajar, dan berpendapatan kurang dari Rp2.000.000. Ditemukan bahwa jenis kelamin, pendidikan, status pernikahan, dan pendapatan berhubungan dengan persepsi kemudahan. Terdapat pengaruh positif signifikan pendapatan terhadap persepsi kemudahan dan kemudian persepsi kemudahan terhadap sikap., Paylater is one of the financial technology trends that offers payment services in installments. The increasing number of paylater users and the offer of convenience make paylater favored by its users. This study aims to analyze the relationship and influence of consumer characteristics and perceived ease of use (PEOU) on the attitudes of paylater users in Jabodetabek. This study uses a quantitative approach with a cross-sectional design and non-probability sampling as the sample determination technique. The total of respondents was 278 people who were paylater users that lived in Jabodetabek and at least 17 years old. Data processing was carried out using Microsoft Excel, SPSS 26, and SmartPLS. Respondents were dominated by Z Generation, female, single, student, and had an income of less than IDR2.000.000. It was found that sex, education, marital status, and income were correlated with PEOU. The PLS test shows that income is positively correlated to PEOU.
Keyword: attitude, consumer behavior, financial technology, paylater, perceived ease of use

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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