Judul: Review Of Dimensions And Layout Of Roadside Channels At Grand Depok City, Depok City
Abstrak: Jalan Boulevard Grand Depok City yang terletak di Kecamatan Sukmajaya dan Cilodong memiliki sistem drainase tepi jalan yang kurang memadai sehingga terjadi genangan pada beberapa lokasi atau ruas jalan. Penelitian ini bertujuan mengkaji ulang sistem drainase pada ketiga lokasi tersebut (A,B,dan C) yang meliputi tata letak, debit limpasan, debit rencana saluran, dimensi saluran, gorong-gorong, dan estimasi biaya. Hasil penelitian menunjukkan bahwa diperlukan saluran outlet pada lokasi A, dan gorong-gorong pada lokasi C. Debit limpasan terhitung berkisar antara 0,16-0,73 m3/detik dengan debit rencana saluran berkisar antara 0,38-1,10 m3/detik. Dengan nilai debit tersebut diperlukan pendalaman saluran pada lokasi A yang semula 0,5 m menjadi 0,7 m dan pengurangan kemiringan dasar saluran pada lokasi B yang semula 3% menjadi 2%. Gorong-gorong yang dibutuhkan pada lokasi A sebanyak 1 buah sepanjang 18,5 m dengan diameter 0,6 m dan lokasi C sebanyak 39 buah sepanjang 8 m dengan diameter 0,2 m. estimasi total biaya yang diperlukan sebesar Rp 155.492.000. pembangunan konstruksi saluran dan gorong-gorong sebaiknya menggunakan material beton precast dan dikerjakan pada malam hari.
Keyword: review, runoff, roadside channel

Judul: Evaluation of Drainage Channels on Gardu Raya Road, Bogor City, West Java
Abstrak: Dalam pembangunan jalan raya, diperlukan prasarana berupa sistem drainase yang baik. Salah satu wilayah Kota Bogor yang mengalami masalah sistem saluran drainase adalah Jalan Gardu Raya. Permasalahan yang seringkali terjadi di wilayah ini adalah genangan air ketika curah hujan tinggi. Berdasarkan permasalahan yang telah disebutkan, penelitian ini bertujuan melakukan evaluasi kondisi saluran drainase di Jalan Gardu Raya, menentukan kapasitas saluran yang sesuai dengan limpasan yang terjadi serta menghasilkan desain saluran yang sesuai dengan kondisi lokasi penelitian. Evaluasi saluran drainase dilakukan menggunakan Software EPA SWMM 5.2. Perhitungan dilakukan dengan metode Log Pearson III dengan nilai curah hujan rencana sebesar 135,11 mm dengan periode ulang 2 tahun. Melalui pemodelan menggunakan EPA SWMM 5.2 didapatkan bahwa lokasi peneltian memiliki 34 subcatchment, 45 conduit, 45 junction dan 2 outfall. Berdasarkan hasil simulasi didapatkan bahwa terdapat saluran yang perlu diperbaiki dengan mengubah dimensi lebar saluran menjadi 0,60 m dan kedalaman 0,80 m. Serta perlu dilakukan galian tanah untuk mengatasi perbedaan elevasi pada saluran dari 188,4 mdpl menjadi 187,4 mdpl., In the construction of highway, infrastructure is needed in the form of a good drainage system. One of the areas in Bogor City that is experiencing problems with the drainage system is Gardu Raya Road. A problem that often occurs in this area is waterlogging when rainfall is high. Based on the problems mentioned, this research aims to evaluate the condition of the drainage channels on Gardu Raya Road, determine the channel capacity according to the runoff that occurs and produce a channel design that suits the conditions of the research location. Drainage channel evaluation was carried out using EPA SWMM 5.2 Software. Calculations were carried out using the Log Pearson III method with a planned rainfall value of 135,11 mm with a return period of 2 years. The simulation results show that the research location has 34 subcatchments, 45 conduits, 45 junctions and 2 outfalls. Based on the simulation results, it was found that there were channels that needed to be repaired by changing the dimensions of the channel width to 0,60 m and depth to 0,80 m. And it is necessary to excavate the land to overcome the elevation difference in the channel from 188,4 masl to 187,4 masl.
Keyword: curah hujan, drainase, epa swmm

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