Judul: Hubungan Komunikasi Pemasaran dengan Keputusan Konsumen Memilih Produk Susu Momo Milk
Abstrak: This research aims to identifying consumer characteristics, analyzing the correlation between consumer characteristics with consumer’s decision, and analyzing the correlation between marketing communications with consumer’s decision choosing Momo Milk’s products. This research used quantitative and qualitative approaches. Respondent’s amounted 150 people were chosen by accidental sampling technique. The results showed that Momo Milk’s consumer characteristics mostly aged are 18-29 years, mostly female, medium education levels, low income levels, have not working status, and have a twitter account. Consumer characteristics are not significantly correlated with consumer's decision through the Word of Mouth (WOM) media, but significantly correlated with consumer's decision through twitter. Marketing communications are significantly correlated with consumer’s decisions through the Word of Mouth (WOM) media, but not significantly correlated with consumer's decision through t
Keyword: milk products, marketing communication, consumer’s decision

Judul: Pengaruh Social Media Marketing terhadap Proses Keputusan Pembelian pada Produk Susu Mbok Darmi
Abstrak: Kemajuan teknologi internet menyebabkan persaingan bisnis semakin ketat, hal ini mendorong para pelaku usaha untuk terus melakukan berbagai upaya dalam memasarkan produknya. Salah satu upaya pemasaran yang efektif adalah dengan meningkatkan pemasaran melalui media sosial. Susu Mbok Darmi merupakan usaha kuliner yang memanfaatkan media sosial dalam pemasarannya. Penelitian ini bertujuan untuk menganalisis pengaruh social media marketing terhadap proses keputusan pembelian pada produk Susu Mbok Darmi. Penelitian ini dilaksanakan di outlet Susu Mbok Darmi pada bulan Desember 2022 sampai dengan Juni 2023. Jenis data yang digunakan bersumber dari data primer dan data sekunder. Penentuan sampel pada penelitian ini menggunakan metode convenience sampling. Jumlah sampel dalam penelitian ini adalah 220 responden yang ditentukan berdasarkan teori Roscoe. Metode yang digunakan yaitu analisis deskriptif dan analisis Structural Equation Modelling-Partial Least Square (SEM-PLS). Hasil dari penelitian ini menunjukkan bahwa keempat variabel dari social media marketing yang terdiri dari context, communication, collaboration, dan connection berpengaruh secara positif dan signifikan terhadap proses keputusan pembelian pada produk Susu Mbok Darmi.
Keyword: Proses Keputusan Pembelian, SEM-PLS, Social Media Marketing

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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