Judul: The Effect of Virtual Try-On Features and Brand Image on Purchase Decisions of Cosmetic Products on  E-Commerce by Female Consumers in Jabodetabek
Abstrak: Peningkatan penggunaan internet di Indonesia mendorong konsumen untuk membeli kosmetik secara online melalui e-commerce. Perkembangan industri e-commerce memberikan peluang bagi usaha kosmetik untuk mengoptimalkan strategi pemasaran inovatif. Namun, persepsi negatif mengenai ketidaksesuaian produk antara gambar dan kondisi asli sering menghambat konsumen dalam mengambil keputusan pembelian di e-commerce sehingga diperlukan strategi pemasaran seperti penggunaan fitur virtual try-on dan penguatan brand image. Penelitian ini bertujuan untuk menganalisis pengaruh antara fitur virtual try-on dan brand image terhadap keputusan pembelian produk kosmetik pada e-commerce di Jabodetabek. Penelitian dilakukan pada bulan Maret 2024 hingga Mei 2024. Penelitian ini menggunakan data primer dan data sekunder yang dianalisis menggunakan analisis deskriptif dan analisis SEM-PLS dengan sampel sebanyak 195 responden. Metode penarikan sampel menggunakan teknik purposive sampling. Hasil penelitian menunjukkan bahwa virtual try-on dan brand image berpengaruh positif dan signifikan terhadap keputusan pembelian., The increased use of the internet in indonesia encourages consumers to purchase cosmetics online through e-commerce. The development of the e-commerce industry provides opportunities for cosmetic businesses to optimize innovative marketing strategies. However, negative perceptions about the discrepancies between product images and actual conditions often hinder consumer’s purchasing decisions on e-commerce, requiring marketing strategies like virtual try-on features and brand image enhancement. This research aim to analyze the effect of virtual try-on features and brand image on the purchasing decision of cosmetic products on e-commerce in Jabodetabek. The study was conducted from March 2024 to May 2024. The data used in this study are primary data and secondary data which were analyzed using descriptive analysis and SEM-PLS with a sample of 195 respondents. The sampling method used purposive sampling technique. The result show that virtual try-on and brand image both positively and significantly impact purchasing decision.
Keyword: brand image, e-commerce, keputusan pembelian, virtual try-on

Judul: The Influence of Affiliate Marketing and Online Customer Reviews on Purchase Decisions Through Customer Trust in Skincare Products in Jabodetabek
Abstrak: Perkembangan teknologi dan internet telah mengubah perilaku konsumen secara signifikan, terutama dalam sektor e-commerce produk skincare di Jabodetabek. Kategori skincare pada e-commerce menjadi kategori dengan penjualan produk tertinggi pada 2023. Penelitian ini bertujuan untuk menganalisis pengaruh affiliate marketing dan online customer review terhadap purchase decision produk skincare di Jabodetabek dengan customer trust sebagai variabel intervening. Penelitian ini dilakukan di Jabodetabek dari Maret hingga Mei 2024. Sampel yang diteliti adalah pengguna aplikasi Shopee sebanyak 219 orang yang dipilih menggunakan teknik purposive sampling. Metode analisis yang digunakan pada penelitian ini adalah analisis deskriptif dan SEM-PLS dengan aplikasi SmartPLS 4. Hasil penelitian menunjukkan bahwa affiliate marketing dan online customer review berpengaruh positif dan signifikan terhadap purchase decision baik secara langsung maupun tidak langsung melalui customer trust., The advancement of technology and the internet has significantly transformed consumer behavior, particularly in the e-commerce sector for skincare products in the Greater Jakarta area (Jabodetabek). In 2023, skincare emerged as the top-selling category in e-commerce. This study aims to analyze the impact of affiliate marketing and online customer reviews on the purchase decisions of skincare products in Jabodetabek, with customer trust as an intervening variable. Conducted from March to May 2024, the research sampled 219 Shopee users selected through purposive sampling. Descriptive analysis and SEM-PLS methods were employed using the SmartPLS 4 application. The findings reveal that affiliate marketing and online customer reviews positively and significantly influence purchase decisions, both directly and indirectly through customer trust.
Keyword: Skincare, affiliate marketing, online customer review, puchase decision, trust

Judul: Karakterisasi gen nifD bakteri metanotrof asal sawah
Abstrak: Methanotrophic bacteria are methane oxidizing bacteria. Some methanotrophs able of fix nitrogen using nitrogenase enzyme. Nitrogenase is composed of two multisubunit metallo protein. Component I contains the active site to nitrogen reduction, encoded by the nifD and nifK genes. Methanotrophic isolates of BGM 3 and BGM 9 had high ammonium accumulation cultured in Nitrate Mineral Salts (NMS) free nitrogen medium. nifD gene fragmens from BGM 3 and BGM 9 were amplified and sequenced. Sequences analyzed using bioinformatics tools such as Blast-N, Blast-X, Expasy Translate Tools, Conserved Domain (CDD) and Scan PROSITE. Phylogenetic construction made using MEGA 4 software. Sequence analysis showed that the nifD sequences of BGM 3 and BGM 9 most closely related to nifD fragmen of Xanthobacter autotropicus PY2. The Identity values of nifD sequences was 92% and 91% respectively. nifD genes from these isolates encode FeMo protein, which was 4Fe4S and 2Fe2S clusters. The nifD gene of BGM 3 and BGM 9 suspected to have same ancestor with the nifD gene of Xanthobacter autotropicus PY2 and Bradyhizobium japonicum USDA 110.
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