Judul: Perencanaan Tata Hijau Simpang Susun Dawuan Jalan Tol Cikampek
Abstrak: Traffic jam have been the most pressing issues in big city. These problems were caused by human population growth, economic growth, and transportation. Vehicle activities increase air pollution on high level. To overcome this problem, green open space in the site is needed as a solution. This research is located in Dawuan interchange at Cikampek toll road. The purpose of this research are to measure total of particle limited by traffic and tree population needed, and to arrange planting plan in Dawuan interchange. The process of this research consists of several phases e.g. commission, research, analysis, and synthesis.The result of the research is arrangement of vegetation by the functions as buffer, direction, conservation, identitiy, and aesthetic. Total emission of particle produced by vehicle approximately is 233.723 g/day, and to adsorb the particle emission 8.958 trees are needed. In case, the site only can be planted by 5.229 trees, so that 3.729 trees still needed to adsorb those emission of dust. Recommended vegetation are Samanea saman, Acassia auriculiformis, and Melaleuca leucadendra.
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Judul: Perencanaan Jalur Hijau untuk Mengurangi Polusi Partikel Akibat Aktivitas Transportasi pada Simpang Susun Cawang, Jakarta Timur
Abstrak: Transportation activities on the street is on the increase and causing negative impact namely pollution. To overcome this under ideal condition, an approach that can be used as one of the solutions is green spaces such as greenery. Greenery of streetside can decrease pollution on its surrounding areas. The location of this research was Cawang interchange, East Jakarta. There were two objectives which were provided by the research: 1) to measure dust that was adsorbed by the greenery of Cawang interchange and 2) to arrange a planting plan of Cawang interchange greenery. The process of this research consist of several phases e.g. commission, research, analysis, and synthesis. Otherwise, gravimetry method was used to found the full measure of greenery capacity in adsorbing particles (dust). This research showed that Ficus benjamina was the species which has the highest capacity in adsorbing dust beside other three sample species (Mimusoph elengi, Cerbera manghas, and Polyalthia fragrans). Therefore, it was important to consider sort of species, number, and location pattern of the greenery in arranging the planting plan to reduce particles. The output of this research was planting plan of Cawang interchange greenery.
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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