Judul: Consumer’s Intention and Purchase Decision of Fresh Meat and Fish through E-Commerce during the Covid-19 Pandemic Era
Abstrak: Penelitian ini bertujuan untuk menganalisis pengaruh kepercayaan, sikap, norma subjektif, kontrol perilaku, dan faktor situasi pandemi Covid-19 terhadap intensi konsumen dalam pembelian daging dan ikan segar melalui e-commerce dan pengaruh intensi tersebut terhadap keputusan pembelian konsumen. Penelitian ini menggunakan data primer dari 200 responden di wilayah Jabodetabek melalui survei secara daring. Penelitian ini menggunakan pendekatan theory of planned behavior dan data dianalisis menggunakan Structural Equation Model Partial Least Squares (SEM-PLS). Hasil penelitian menunjukkan bahwa variabel sikap, norma subjektif, dan faktor situasi memiliki pengaruh positif signifikan terhadap intensi pembelian konsumen daging dan ikan segar melalui e-commerce. Hasil penelitian juga menunjukkan bahwa kontrol perilaku dan intensi pembelian memiliki pengaruh positif signifikan terhadap praktik pembelian konsumen daging dan ikan segar melalui e-commerce.
Keyword: E-commerce, intensi konsumen, SEM-PLS, theory of planned behavior

Judul: The Influence of Psychological Factors on the Decision to Purchase Organic Vegetables and Fruits through E-commerce during the Covid-19 Pandemic
Abstrak: Perkembangan internet yang semakin pesat dimanfaatkan masyarakat untuk melakukan transaksi bisnis secara daring sehingga muncul adanya e-commerce. Situasi Pandemi Covid-19 menyebabkan peningkatan pengguna e-commerce sebagai alat untuk berbelanja. Sayur dan buah organik sebagai alternatif piihan pangan sehat mulai dicari di masa pandemi Covid-19. Kebutuhan ini dapat dipenuhi melalui pemanfaatan e-commerce sebagai media transaksi jual beli saat pandemi Covid-19. Penelitian ini bertujuan untuk menganalisis pengaruh faktor psikologis kepercayaan, keamanan, dan kemudahan terhadap keputusan pembelian sayur dan buah organik melalui e-commerce. Penelitian ini menggunakan data primer dari 200 responden di wilayah Jabodetabek melalui kuesioner secara daring. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dan analisis SEM-PLS. Hasil penelitian menunjukkan bahwa variabel kepercayaan, keamanan, kemudahan berpengaruh positif dan signifikan terhadap keputusan pembelian online. Perusahaan e-commerce perlu memperhatikan variabel yang berpengaruh signifikan sebagai bahan pertimbangan dalam memasarkan produknya., The community is using the rapid development of the internet to conduct online business transactions, resulting in the emergence of e-commerce. The Covid19 pandemic situation has led to an increase in e commerce users as a means of shopping. Organic vegetables and fruits began to be sought as an alternative to healthy food choices during the Covid-19 pandemic. This demand can be fulfilled using e commerce as media for buying and selling transactions during the Covid19 pandemic. This study analyses the influence of psychological factors of trust, safety, and convenience on purchasing decisions for organic vegetables and fruits through e-commerce. This study used primary data from 200 respondents in the Jabodetabek area through an online questionnaire. The method used in this research is descriptive analysis and SEM-PLS analysis. The results showed that the variables of trust, security, convenience have a positive and significant effect on online purchasing decisions. E-commerce companies need to put emphasize on variables that have a significant effect on marketing their products.
Keyword: Covid-19, E-commerce, Online Purchasing Decision, SEM-PLS

Judul: Penyusunan Overlap Graph menggunakan Suffix Tree pada DNA Sequence
Abstrak: The DNA sequence assembly is very important in genome analysis. This step aims to reconstruct contigous DNA fragment (contigs) from short fragment by concatenating fragments based on the overlap region among them. This method employs overlap graph for solving the problems. In this graph, nodes represent fragments and edges represent overlap. This research developed a software for constructing overlap graph using suffix tree. The evaluation was conducted by measuring the number of nodes, number of edges, and the execution time in many values of minimum overlap. The minimum overlap is defined as the minimum length of substring which is considered as the overlap region between two fragments. The evaluation results showed that the number of nodes, the number of edges, and the execution time were increased with the decreasing of the minimum overlap value.
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