Judul: Clustering hasil operasi OLAP untuk datawarehouse HOTSPOT menggunakan algoritme K-means
Abstrak: Hayardisi (2008) has developed a datawarehouse as tool to analyze hotspot spread. That application gives information in form of table, crosstab and graph. We improve that aplication by adding webGIS module to visualize hotspot location easily. WebGIS developed using Mapserver and chameleon.To show the distribution problem of hotspot, we clusterize number of hotspot occurencies into four classes low, medium, high and very high using k-means algorithms.
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Judul: Pengembangan Data Warehouse dan Aplikasi SOLAP Berbasis Web Untuk Data Titik Panas (Hotspot)
Abstrak: Salah satu antisipasi untuk mencegah meluasnya kebakaran hutan antara lain dengan menggunakan sensor satelit. Pada penelitian ini dilakukan beberapa proses metode penelitian diantaranya analisis data, ekstrak data, tranformasi data, dan implementasi SOLAP (Spatial Online Analytical Processing). Data yang digunakan pada penelitian ini adalah data titik panas yang berasal dari Satelit NOAA tahun 1997 sampai dengan 2005, dan satelit TERRA, AQUA tahun 2001 sampai dengan 2009. Aplikasi SOLAP dibuat dengan framework Geomondrian dan Geoserver, untuk penyajian data dalam bentuk tabel pivot, grafik dan peta. Aplikasi ini dapat menangani query spasial dengan fungsi MultiDimensional eXpression (MDX) pada Geomondrian dan filter Common Query Language (CQL) pada Geoserver. Aplikasi ini juga telah mendukung dimensi data dengan ukuran numerik dan geografik dengan penyajian data dalam bentuk peta. Namun, tabel Jpivot dalam aplikasi ini belum dapat disinkronisasikan dengan library yang digunakan untuk menampilkan peta, yakni Open Layers ataupun GeoExt.
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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