Judul: Pengaruh Persepsi Harga, Kualitas Layanan, Citra Merek, dan Kepercayaan terhadap Keputusan Pembelian di Bukalapak
Abstrak: Consumer purchasing decisions are actions taken by consumers in buying goods or services. This study aims to identify the characteristics of Bukalapak consumers and examine the effect of price, service quality, brand image, and trust on decision purchase. Structural Equation Modeling (SEM) with approach Partial Least Square (PLS) is the method use. The findings of the study indicate that the brand image and trust variables, respectively, is the emotional relationship between Bukalapak and Bukalapak brands who have good intentions to provide satisfaction to consumers. Meanwhile, the variables of price and service quality do not have a significant effect on purchasing decisions., Consumer purchasing decisions are actions taken by consumers in buying goods or services. This study aims to identify the characteristics of Bukalapak consumers and examine the effect of price, service quality, brand image, and trust on decision purchase. Structural Equation Modeling (SEM) with approach Partial Least Square (PLS) is the method use. The findings of the study indicate that the brand image and trust variables, respectively, is the emotional relationship between Bukalapak and Bukalapak brands who have good intentions to provide satisfaction to consumers. Meanwhile, the variables of price and service quality do not have a significant effect on purchasing decisions.
Keyword: consumer perception, purchasing decisions, e-marketplace, SEM-PLS

Judul: Analisis Sikap Konsumen pada Online Video Advertising Bukalapak dan Pengaruhnya Terhadap Keputusan Pembelian.
Abstrak: Penggunaan internet di Indonesia terus meningkat secara signifikan. Besarnya penggunaan internet menjadikan Indonesia sebagai pasar yang sangat potensial bagi digital advertising. Bukalapak adalah salah satu pelaku bisnis ecommerce yang sering menampilkan video online advertising yang unik. Pertumbuhan iklan digital dan bentuknya yang beragam akan membentuk sikap konsumen yang mempengaruhi keputusan pembelian konsumen. Tujuan penelitian yaitu menganalisis sikap konsumen terhadap online video advertising dan menganalisis pengaruh sikap konsumen pada online video advertising Bukalapak terhadap keputusan pembelian. Analisis data yang digunakan adalah analisis deskriptif dan Structural Equation Modelling (SEM) dengan pendekatan Partial Least Square (PLS). Hasil analisis menunjukkan konsumen menyukai iklan Bukalapak di YouTube, namun cenderung menggunakan fasilitas skip yang diberikan YouTube pada tayangan iklan. Sikap terhadap iklan dan sikap terhadap merek Bukalapak masing-masing berpengaruh positif dan signifikan terhadap keputusan pembelian.
Keyword: Keputusan pembelian, online video advertising, sikap konsumen, Structural Equation Modelling (SEM)

Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test