Judul: Penerapan Algoritme Dijkstra Pada Rute Angkot Bogor Berbasis Android
Abstrak: There are some problems dealing with angkot in Bogor. The problems are related to the complexity of route system and amount of angkot unit. In this research, information system was developed for guiding user in order to choose the most efficient route to reach the purpose location. The Dijkstra algorithme was employed to support the system in order to find the route that provide the shortest distance from the origin to the purpose location. The system was developed by using Java and XML programming language and evaluated by applying black box testing method. The evaluation results show that the system can succesfully meet all requirements, particularly providing the most efficient route of a certain location.
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Judul: Aplikasi Mobile Penentuan Rute Terpendek di Kebun Raya Bogor Menggunakan Algoritme Dijkstra
Abstrak: Bogor Botanical Gardens (BBG) has many trees, plant collections, and points of interest which located in a wide area around 87 hectares. In addition, BBG also has a museum building, laboratory, and many important places which give difficulty for a person to reach those location. Because of the distance of each location, navigation or guide becomes essential for travelers who want to looking around BBG with optimum time. These problems can be solved by graph modelling to determine the shortest route from each location using Dijkstra algorithm. Based on the results of comparative testing in applications with spacing distance pedometer difference obtained an average error distance is 65.3 meters, this is because the location coordinate data obtained from different Google Maps with location coordinates of the received GPS signal while in KRB on pedometer application.
Keyword: Bogor Agricultural University (IPB), Dijkstra algorithm, shortest path, graphs, navigation

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