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: The Influence of Hedonic Shopping Motivation and Discount Toward Impulse Buying in JABODETABEK Area.
Abstrak: Perkembangan internet menyebabkan masyarakat memilih berbelanja secara online karena kemudahan-kemudahan yang diberikan. Perilaku pembelian masyarakat juga mulai berubah dari pembelian terencana menjadi pembelian yang tidak terencana atau dikenal sebagai pembelian impulsif. Pebisnis online perlu bersaing untuk meningkatkan penjualan yang salah satunya melalui perilaku pembelian impulsif. Tujuan dari penelitian ini adalah untuk mengidentifikasi karakteristik konsumen, mengidentifikasi perilaku belanja online, menganalisis tanggapan konsumen terhadap hedonic shopping motivation dan potongan harga, dan menganalisis pengaruh hedonic shopping motivation dan potongan harga terhadap pembelian impulsif pada belanja online. Metode analisis yang digunakan adalah analisis deskriptif dan analisis regresi linier berganda. Variabel bebas dalam penelitian ini adalah hedonic shopping motivation dan potongan harga. Hasil uji F menunjukkan bahwa hedonic shopping motivation dan potongan harga berpengaruh secara simultan terhadap pembelian impulsif. Hasil uji t menunjukkan bahwa hedonic shopping motivation (sig. 0.000) dan potongan harga (sig. 0.011) memiliki pengaruh yang positif dan signifikan terhadap pembelian impulsif pada belanja online.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Discount, Hedonic Shopping Motivation, Impulse Buying, Internet, Online business, Shopping behavior

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: