Judul: Impact of Consumer Knowledge and Perception towards Purchase Intention of Frozen Fish Products in Cold Chain System
Abstrak: Pandemi Covid-19 mengakibatkan kegiatan usaha perikanan mengalami gangguan terutama terkait dengan mobilitas pengiriman . Sistem cold chain dapat membantu distribusi ikan selama pandemi. Ikan beku dari sistem cold chain dapat menjadi alternatif makanan yang dikonsumsi masyarakat untuk meningkatkan imunitas selama pandemi. Oleh karena itu penelitian ini bertujuan untuk menganalisis profil konsumen ikan beku dan karakteristik pembeliannya, serta menganalisis pengaruh pengetahuan, persepsi, sikap dan norma subjektif konsumen terhadap minat membeli ikan beku pada masa pandemi. Sampel pada penelitian ini sebanyak 247 responden yang tersebar di Kota Bekasi, Jawa Barat. Teknik penentuan sampel menggunakan non-probability sampling jenis convenience sampling. Analisis data menggunakan SEM-PLS dan analisis crosstab. Hasil menunjukkan responden yang bependidikan tinggi akan cenderung memilih untuk membeli ikan beku daripada yang tidak berpendidikan tinggi. Hasil penelitian juga menunjukkan bahwa pengetahuan, persepsi, sikap, dan norma subjektif berpengaruh positif dan signifikan terhadap minat beli., The Covid-19 pandemic has resulted in disruption of business activities, especially those related to shipping transfers. Cold chain systems can help with fish distribution during a pandemic. Frozen fish from the cold chain system can be an alternative food consumed by the community to increase immunity during a pandemic. Therefore, this study aims to analyze the profile of frozen fish consumers and their purchasing characteristics, as well as to analyze the influence of consumer knowledge, perceptions, attitudes and subjective norms on the interest in buying frozen fish during the pandemic. The sample in this study were 247 respondents spread across the city of Bekasi, West Java. The sampling technique used was non-probability sampling, which was convenience sampling. Data analysis using SEM-PLS and crosstab analysis. The results show that respondents with higher education will choose to buy frozen fish than those who are not highly educated. The results also show that knowledge, perceptions, attitudes, and subjective norms have a positive and significant effect on buying interest.
Keyword: cold chain, crosstab, frozen fish, purchase intention, SEM PLS

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: 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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