Judul: Pengaruh Pemasaran Media Soaial dan Kesadaran Merek Terhadap Keputusan Pembelian di Restoran Nook Umalas, Bali
Abstrak: Pemasaran media sosial merupakan strategi paling efektif, melalui pemasaran media sosial, bisnis dapat mencapai berbagai kelompok konsumen dengan beragam preferensi dan karakteristik. Begitu juga dengan brand awareness, tingkat brand awareness yang tinggi juga dapat membantu merek untuk memperluas pangsa pasarnya yang berdampak pada meningkatkan keputusan pembelian. Tujuan penelitian ini adalah untuk mengetahui pengaruh pemasaran media sosial dan kesadaran merek terhadap keputusan pembelian di restoran Nook Umalas di Kabupaten Badung Daerah Seminyak, Provinsi Bali. Pengumpulan data menggunakan instrumen penelitian, analisis data bersifat kuantitatif/statistik, dengan tujuan untuk menguji hipotensis yang telah ditetapkan. Teknik pengambilan sampel menggunakan non probability sampling dengan metode accidental sampling. Penelitian ini menggunakan 130 responden dan dilakukan dari bulan Agustus 2022 hingga April 2023. Hasil penelitian menunjukkan bahwa pemasaran media sosial dan kesadaran merek memiliki pengaruh positif yang signifikan secara simultan terhadap variabel keputusan pembelian. Hal ini menunjukkan semakin baik pemasaran media sosial dan kesadaran merek semakin tinggi pula keputusan pembelian di restoran Nook Umalas, Bali., Social media marketing is the most effective strategy, through social media marketing, businesses can reach various consumer groups with various preferences and characteristics. Likewise with brand awareness, a high level of brand awareness can also help brands to expand their market share which has an impact on increasing purchasing decisions. The aim of this research was to determine the influence of social media marketing and brand awareness on purchasing decisions at the Nook Umalas restaurant in Badung Regency, Seminyak Region, Bali Province. Data collection uses research instruments, data analysis were quantitative/statistical, with the aim of testing predetermined hypotension. The sampling technique used non-probability sampling with the accidental sampling method. This research used 130 respondents and was conducted from August 2022 to April 2023. The research results showed that social media marketing and brand awareness had a significant positive influence simultaneously on purchasing decision variables. This means that the better the social media marketing and brand awareness, the higher the purchasing decisions at the Nook Umalas restaurant, Bali.
Keyword: keputusan pembelian, kesadaran merek, Nook, pemasaran media sosial, brand image, purchasing decision, social media marketing

Judul: Pengaruh Brand Campaign dan Brand Awareness di Instagram Terhadap Keputusan Pembelian PT Sewu Segar Nusantara di Jakarta Selatan
Abstrak: Pemasaran digital memberi peluang bagi perusahaan untuk melakukan kegiatan promosi tanpa terhalang oleh tempat, jarak, dan waktu. Tujuan dilakukannya penelitian ini yakni menganalisis pengaruh brand campaign dan brand awareness di media sosial Instagram terhadap keputusan pembelian pada merek Sunpride milik PT Sewu Segar Nusantara. Data dikumpulkan melalui kuesioner yang diberikan kepada 134 pengguna Instagram dengan usia minimal 18 tahun berdomisili di Jakarta Selatan dan telah membeli produk Sunpride dalam sebulan terakhir. Teknik sampling yang dipakai adalah teknik purposive sampling dengan perhitungan memakai rumus Slovin. Data tersebut dianalisis dengan metode regresi linear berganda yang memakai software IBM Statistical Program for Social Science (SPSS) Statistics 26. Perhitungan menunjukkan brand campaign dan brand awareness berpengaruh secara signifikan dan positif terhadap keputusan pembelian dengan faktor penjelas 0,666% pada nilai adjusted R2
Keyword: instagram, kampanye merek, kampanye pemasaran, keputusan pembelian, kesadaran merek, pemasaran media sosial

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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