Judul: Analisis Efektivitas Promosi Penjualan Terhadap Pembelian Tidak Terencana pada Situs Jual Beli Online Shopee di Jabodetabek
Abstrak: Pembelian tidak terencana adalah perilaku konsumen yang terjadi ketika melihat suatu barang dan membelinya secara spontan dengan sedikit maupun tanpa pertimbangan. Didukung dengan kehadiran e-marketplace membawa pengalaman baru dalam hal berbelanja. Penelitian ini bertujuan untuk mengidentifikasi karakteristik dari pengguna shopee dan untuk menganalisis efektivitas promosi penjualan dan pengaruhnya terhadap pembelian tidak terencana pada situs jual beli online shopee di Jabodetabek. Data primer penelitian ini yaitu dengan menyebarkan kuesioner secara online melalui Google Form dengan didukung data sekunder yaitu diantaranya buku, jurnal, serta website. Sampel yang digunakan dalam penelitian ini berjumlah 100 responden dengan menggunakan teknik purposive sampling. Alat analisis yang digunakan adalah analisis deskriptif, EPIC model, dan direct rating method. Hasil penelitian menyatakan bahwa promosi penjualan yang dilakukan Shopee masuk dalam kategori promosi efektif menurut perhitungan EPIC model sedangakan menurut perhitungan direct rating method promosi penjualan Shopee masuk dalam rentang promosi yang baik.
Keyword: direct rating method, efektivitas promosi penjualan, EPIC model, emarketplace, pembelian tidak terencana

Judul: Pengaruh Online Consumer Review dan Rating  terhadap Purchase Intention Produk Serum Somethinc pada Marketplace Shopee di Jabodetabek
Abstrak: Peningkatan jumlah pengguna internet menciptakan banyak peluang bagi para pengusaha, sehingga mengakibatkan peningkatan jumlah e-commerce dan marketplace di Indonesia. Shopee adalah salah satu marketplace Indonesia yang menawarkan fitur online consumer review dan rating di platform. Tujuan penelitian ini menganalisis pengaruh online consumer review dan rating terhadap purchase intention produk serum Somethinc pada marketplace Shopee. Jenis penelitian ini adalah penelitian kuantitatif dengan teknik pengambilan sampel purposive sampling. Data penelitian dikumpulkan pada bulan April – Mei 2023 melalui kuesioner dari 150 responden di Jabodetabek sebagai data primer dan melalui studi literatur dari buku, jurnal, dan artikel terkait sebagai data sekunder. Penelitian ini menggunakan metode analisis deskriptif dan Structural Equation Modeling-Partial Least Square (SEM-PLS). Hasil penelitian menunjukkan variabel online consumer review dan rating berpengaruh signifikan dan positif terhadap purchase intention produk serum Somethinc dengan variabel rating memiliki pengaruh lebih dominan., The increase in the number of internet users creates many opportunities for entrepreneurs, resulting in an increase in the number of e-commerce sites and marketplaces in Indonesia. Shopee is one of the Indonesian marketplaces that offers online consumer review and rating features on its platform. The purpose of this study was to analyze the effect of online consumer review and rating on purchase intention of Somethinc serum products on Shopee marketplace. This type of research is quantitative research with purposive sampling technique. The research data was collected in April - May 2023 through questionnaires from 150 respondents in Jabodetabek as primary data and through literature studies from books, journals, and related articles as secondary data. This research uses the descriptive analysis method and Structural Equation Modeling-Partial Least Square (SEM-PLS). The results showed that the online consumer review and rating variables had a significant and positive effect on the purchase intention of Somethinc serum products with the rating variable having a more dominant influence.
Keyword: online consumer review, purchase intention, rating, Shopee, Somethinc  serum

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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