Judul: Analisis Faktor-Faktor yangMemengaruhi Impulse Buying Produk Fashion di E-Commerce oleh Generasi Z
Abstrak: Perkembangan internet saat ini mengalami peningkatan secara masif yang menjadi salah satu faktor bertumbuhnya e-commerce di Indonesia. Salah satu perusahaan yang baru saja mengembangkan bisnis ke ranah e-commerce adalah Tiktok. Kemudahan dalam mengakses produk atau jasa memungkinkan konsumen melakukan impulse buying. Para pelaku usaha harus mengetahui perilaku konsumen agar mampu bersaing dan dapat merumuskan strategi yang tepat untuk meningkatkan penjualan. Penelitian ini bertujuan mengidentifikasi karakteristik konsumen dan faktor-faktor yang memengaruhi impulse buying di Tiktok Shop pada generasi Z. Metode yang digunakan adalah non probability sampling dengan teknik purposive sampling. Penelitian ini menggunakan metode analisis deskriptif dan analisis Structural Equation Modelling (SEM) dengan bantuan program SmartPLS versi 4. Hasil dari penelitian ini menunjukkan bahwa faktor-faktor yang berpengaruh terhadap impulse buying di Tiktok Shop pada generasi Z yaitu hedonic shopping motives, fashion involvement, time availability, dan presence of others.
Keyword: e-commerce, keputusan pembelian, pembelian tidak terencana, SEM- PLS

Judul: The Effect of Sales Promotion, Hedonic Shopping Motivation and Perceived Ease of Use on Impulse Buying in Generation Z of Tiktokshop Feature Users.
Abstrak: Seiring berkembangnya teknologi sekarang ini, beberapa social media juga ikut menyediakan fitur – fitur online shopping di aplikasi mereka salah satunya adalah aplikasi Tiktok yang meluncurkan fitur belanja online melalui aplikasi Tiktok yakni fitur Tiktokshop. Kecenderungan seorang konsumen dalam melakukan pembelian secara tidak terencana menjadi peluang bagi penyedia platform jual beli seperti Tiktokshop dalam membuat strategi untuk meningkatkan jumlah transaksi di platform mereka. Oleh karena itu, secara garis besar penelitian ini bertujuan untuk meneliti pengaruh sales promotion, shopping hedonic motivation dan perceived ease of use terhadap impulse buying pengguna Tiktokshop. Penentuan sampel dilakukan dengan teknik non-probability sampling dengan metode purposive sampling. Analisis data menggunakan teknik analisis deskriptif dan SEM PLS. Hasil analisis menunjukkan bahwa variabel sales promotion dan hedonic shopping motivation memiliki pengaruh positif dan signifikan terhadap impulse buying, sedangkan variabel perceived ease of use tidak berpengaruh signifikan terhadap impulse buying generasi Z pada fitur Tiktokshop.
Keyword: Sales Promotion, Hedonic Shopping Motiation, Perceived Ease of Use, Impulse Buiying, Tiktokshop

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.
Keyword: