Judul: Sistem Negosiasi Harga dan Pemesanan Produk Secara Online
Abstrak: E-commerce (electronic commerce) merupakan sistem penjualan produk baik yang berupa barang maupun jasa melalui web. Selama ini praktek e-Commerce telah banyak dilakukan orang, namun terdapat satn kendala dimana konsumen selalu dihadapkan dengan barga yang tidak dapat dinegosiasikan. Padahal, menawar sebelum membeli suatn produk dapat menambab kepuasan bagi seorang pembeli.
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Judul: Pembangunan Sistem E-Commerce Menggunakan Payment Gateway PayPal dengan Pendekatan eCRM dan Pengujian Usability (Studi Kasus: PT. Ekko Hejo)
Abstrak: PT. Ekko Hejo is an agro-manufacturing company that processes coconut coir and jute for land improvements. The small number of overseas customers has triggered PT. Ekko Hejo to expand their overseas markets using the e-commerce. E-commerce has been previously developed, but the feature of safe online payments has not been implemented. E-commerce system for similar products has been used in Indonesia, namely Rumah Sabut, but only in the form of web blog where the ordering was made via e-mail, telephone, and fax. This research aimed to build an e-commerce with secure online payment using PayPal payment gateway to increase the user‟s trust. The system was built by considering three aspects of eCRM approach, namely the pre-purchase, at-purchase, post-purchase, as well as the usability testing of the four types of users, namely browsers, evaluators, transactor, and customer. This system was constructed with a prototyping development method. The results indicated that an e-commerce system with secure online payment through PayPal payment gateway has been successfully built so that the user‟s trust increased. However, the three aspects of the eCRM have not been fulfilled optimally. Nevertheless, the system has been successful in achieving the usability of e-commerce in Indonesia with a value of above 80%.
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Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum