Judul: Redesign of digital nudges in e-commerce applications to promote responsible consumption
Abstrak: Peningkatan konsumsi bertanggung jawab telah mempengaruhi berbagai aspek layanan teknologi, khususnya dalam e-commerce. Pertumbuhan pesat platform e-commerce, terutama Tokopedia, telah mendorong perkembangan ekonomi, namun juga membawa dampak negatif yang tak terhindarkan, terutama terkait keberlanjutan lingkungan dan sosial. Konsep konsumsi bertanggung jawab menekankan pada pengurangan penggunaan sumber daya alam, bahan berbahaya, dan limbah untuk menjamin masa depan yang berkelanjutan. Penelitian ini bertujuan untuk merancang digital nudge yang efektif di platform e-commerce Tokopedia untuk mendorong kebiasaan konsumsi bertanggung jawab serta menguji rancangan prototipe. Penelitian dilakukan dalam beberapa tahapan yakni pembangkitan ide menggunakan SCAMPER, prototyping, uji kebergunaan, dan wawancara. Prototipe redesain berhasil meningkatkan penggunaan fitur responsible consumption berupa fitur donasi dari 40% menjadi 67%., The increase in responsible consumption has impacted various aspects of technology services, particularly in e-commerce. The rapid growth of e-commerce platforms, especially Tokopedia, has driven economic development but also brought unavoidable negative effects, particularly related to environmental and social sustainability. The concept of responsible consumption emphasizes reducing the use of natural resources, hazardous materials, and waste to ensure a sustainable future. This research aims to design an effective digital nudge on the Tokopedia e-commerce platform to encourage responsible consumption habits and test the prototype design. The study was conducted in several stages, including generating ideas using SCAMPER, prototyping, usability testing, and interviews. The redesigned prototype successfully increased the use of responsible consumption features, such as donation features, from 40% to 67%.
Keyword: digital nudge, E-commerce, Konsumsi yang bertanggung jawab, SCAMPER

Judul: User Research on E-Commerce Application Regarding The Use of Digital Nudge to Form Responsible Consumption
Abstrak: Teknologi informasi yang semakin kompleks telah memicu pertumbuhan e-commerce dengan pengaruh besar pada kehidupan manusia. E-commerce telah meningkat seiring dengan perkembangan internet yang meluas. Pandemi COVID-19 mempercepat pertumbuhan e-commerce di Indonesia sebagai respons terhadap kebutuhan untuk menghindari kontak fisik. Strategi nudging diperlukan untuk mendorong konsumsi bertanggung jawab yang sejalan dengan Sustainable Development Goals (SDGs) Nomor 12. Penelitian ini berfokus pada sikap dan perilaku serta efektifitas digital nudge pengguna usia 18-35 tahun melalui tahapan persiapan instrumen, rekrutmen partisipan, uji pengguna, wawancara, pengisian kuesioner, analisis hasil, dan dokumentasi desain. Hasil yang diperoleh terdapat ketidaksesuaian antara sikap dan perilaku. Partisipan memiliki pemahaman dan sikap yang baik terhadap fitur seperti donasi. Namun, perilaku belum mencerminkan hal tersebut dikarenakan alasan seperti ketidakjelasan informasi dan tujuan, biaya, dan ketidaktahuan. Selain itu, fitur rating serta kesulitan menerapkan kemasan yang ramah lingkungan juga menjadi perhatian., The increasingly complex information technology has led to the growth of e-commerce, significantly impacting human lives. E-commerce has grown alongside the widespread development of the Internet. The COVID-19 pandemic has sped up e-commerce growth in Indonesia as a response to the need to avoid physical contact. Nudging strategies are needed to encourage responsible consumption in line with Sustainable Development Goals (SDGs) Number 12. This research focuses on the attitudes and behaviors, as well as the effectiveness of digital nudges for users aged 18-35, through stages including instrument preparation, participant recruitment, user testing, interviews, questionnaire completion, result analysis, and design documentation. The results show a mismatch between attitudes and behaviors. Participants have good understanding and positive attitudes towards features like donations. But, their behaviors don't reflect this due to reasons like unclear information and objectives, costs, and lack of awareness. Additionally, features like rating and the difficulty in implementing eco-friendly packaging are also concerns.
Keyword: digital nudge, e-commerce, konsumsi bertanggung jawab, responsible consumption

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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