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: Redesain Digital Nudge pada Aplikasi Ride Hailing untuk Meningkatkan Konsumsi yang Bertanggung Jawab di Kalangan Pemuda
Abstrak: Konsumsi yang bertanggung jawab menjadi tujuan penting untuk menjaga ketahanan dan keberlanjutan. Salah satu kebutuhan konsumsi utama saat ini adalah transportasi online atau ride hailing. Tetapi perilaku konsumsi yang bertanggung jawab pada sektor ride hailing di Indonesia masih sangat minim. Perilaku masyarakat pada lingkungan digital dapat diarahkan dengan digital nudge. Penelitian sebelumnya menemukan bahwa digital nudge terkait konsumsi yang bertanggung jawab pada aplikasi ride hailing belum digunakan oleh generasi muda. Penelitian ini bertujuan merancang ulang teknik nudging terkait konsumsi yang bertanggung jawab serta menguji prototipe. Penelitian ini dilaksanakan dalam 5 tahapan yakni perumusan research-based persona, pembangkitan ide redesain menggunakan SCAMPER, pembuatan prototipe, uji kegunaan, dan wawancara. Prototipe redesain berhasil meningkatkan penggunaan fitur terkait konsumsi yang betanggung jawab sebesar 26,7%., Responsible consumption is an important goal to maintain resilience and sustainability. One of the main consumption needs today is online transportation or ride hailing. However, responsible consumption behavior in the ride hailing sector in Indonesia is still very minimal. People's behavior in the digital environment can be directed with digital nudge. Previous research found that digital nudges related to responsible consumption on ride hailing applications have not been used by the younger generation. This research aims to redesign nudging techniques related to responsible consumption, as well as testing prototypes. This research was carried out in 5 stages, namely formulating research-based personas, generating redesign ideas using SCAMPER, making prototypes, usability testing, and interviews. The redesign prototype succeeded in increasing the use of features related to responsible consumption by 26.7%.
Keyword: Digital nudge, Konsumsi yang bertanggung jawab, Ride hailing, SCAMPER

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: