Judul: Pengembangan data warehouse pengiriman barang di PT Geologistics
Abstrak: PT Geologistics adalah sebuah perusahaan pengiriman barang. Data pengiriman barang terus bertambah setiap hari dan membentuk tumpukan atau gunungan data. Untuk mengintegrasikan data dari berbagai departemen pada PT Geologistic dibutuhkan data warehouse. Pada data warehouse dapat dilakukan berbagai operasi On-line Analytical Processing (OLAP) untuk memenuhi kebutuhan pengolahan data dari setiap divisi. Tujuan penelitian ini untuk membuat data warehouse dan operasi OLAP pada data pengiriman barang PT Geologistics. Ruang lingkup penelitian ini dibatasi pada data pengiriman barang dari bulan Oktober 2005 sampai dengan juni 2006. Sebelum data warehouse dibangun, data harus melewati proses ekstraksi, pembersihan, transformasi, pemuatan, dan refresh. Data warehouse dibangun menggunakan arsitektur tiga tingkat data warehouse, yaitu server basis data warehouse, server OLAP, dan perangkat analisis untuk pengguna.
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Judul: Analysis Of Delayed Material Based On Data Warehouse And C5.0 Decision Tree Algorythm Approach.
Abstrak: Dalam aktivitas bisnis yang selalu dinamis, para pelakunya harus senantiasa memikirkan strategi dan inovasi dari kualitas produk agar dapat mengembangkan skala bisnis mereka. Salah satu upaya dalam memenuhi kebutuhan bisnis tersebut adalah dengan melakukan analisis terhadap kegiatan pembelian bahan baku yang dibutuhkan oleh perusahaan terkait produksi. Semakin cepat pemenuhan kebutuhan tersebut, maka perusahaan dapat memaksimalkan segala aktivitas yang berhubungan dengan proses produksi. Salah satu permasalahan penting terkait kegiatan pembelian barang adalah kegiatan keterlambatan penerimaan barang dari vendor kepada perusahaan yang melakukan pembelian. Dengan berdasarkan latar belakang permasalahan yang dihadapi oleh PT AKPI Tbk maka penelitian ini bertujuan untuk melakukan pembangunan data warehouse dan OLAP untuk menyajikan informasi pembelian barang dan bahan baku secara multidimensi., Business activities are always dynamic, that is why a company has to constantly think about strategies and innovation in order to develop their business scale. By utilizing information technology, the process of data analysis and information to determine policies can be implemented properly to reach corporate strategy. Most case of late delivery by the vendor can resulted in production activities become stunted due to lack of material available. The solution to this problem is to perform data analysis using the factors related to the purchase of goods and materials. Based on the background of the problems, this study aims to do the development of data warehouse and OLAP for presenting information purchase of goods and raw materials in multidimensional.
Keyword: classification model, data warehouse, decision tree

Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity