Judul: Perancangan Bangunan Penangkap Mata Air dan Jaringan Pipa Air Bersih di Desa Pamijahan, Kecamatan Pamijahan, Kabupaten Bogor
Abstrak: Desa Pamijahan terletak di Kecamatan Pamijahan, Kabupaten Bogor, Jawa Barat. Desa Pamijahan memiliki sumber mata air sendiri yaitu mata air Cigamean. Penelitian ini bertujuan untuk merancang sarana air bersih bagi masyarakat Desa Pamijahan. Pada penelitian ini penduduk yang akan dilayani air bersih berada pada wilayah RT 02 RW 03, RT 03 RW 03, RT 01 RW 04, RT 03 RW 04, dan RT 02 RW 04. Kebutuhan harian maksimum (Qhm) adalah sebesar 2.37 lt/dtk dan saat jam puncak (Qjp) adalah 8.53 lt/dtk. Desain broncaptering dirancang dengan tipe IA, dan bak penampung air tipe II dengan volume 5 m3. Perhitungan diameter pipa dengan persamaan Hazen-Williams dan kehilangan head menggunakan persamaan Bernoulli. Diameter pipa transmisi yaitu 3 inchi dan panjang total pipa 416.8 m. Pompa yang digunakan adalah pompa submersible model 85S30-2 (3HP) dan mampu mengalirkan debit air antara 1.14-7.44 lt/dtk, dengan waktu pengoperasian selama 16 jam dalam sehari. Volume reservoir sebesar 61.45 m3. Pada jaringan distribusi, sisa head di atas 10 m saat jam puncak, sehingga rancangan ini dapat diterapkan
Keyword: broncaptering, distribution pipeline, pamijahan village, reservoir, transmission pipline

Judul: Perencanaan Sistem Distribusi Air Bersih di Desa Pulosari, Kecamatan Pengalengan, Kabupaten Bandung - Jawa Barat
Abstrak: Water is a basic requirement in daily life. Without water, humans are not able to carry out their daily activities. In an effort to distribute clean water to the community, the pipe system could be utilized. In designing the pipe system, the things that need to be taken into account are the amount of capacity and speed of the flow of a fluid through a system of pipelines and other things required in terms of planning. The population of Pulosari on RW 05, 06, 11 and 14 in 2012 is 2950 persons. The purpose of this research is designing a clean water distribution system by utilizing the raw water source of the reservoir in Pulosari village, Pengalengan sub district, Bandung district - west java. The main parameters that need to be evaluated is the pipe, discharge, pressure, and headloss. The main parameters that need to be evaluated is the geometric pipe, discharge, pressure, and headloss. This research was conducted with the primary and secondary data collection which is then proceeded with data analysis using the Epanet 2.0 software. From measurement performed, during rainy season flowing water to a reservoir only reachedto 1,37 LPS, For that required planning distribution system better namely by increasing the capacity of a building intake so as to discharge distributed to a reservoir will increase the size of 4,5 LPS, Discharge is able to meet the needs of water until 2022 year. HGL acquired value is above the soil surface so as to produce a positive residual head, this causes the water can flow from the reservoir into the water tank. Besides the new design of the pipe is needed on the distribution networks of water from the reservoir into the sump by replacing the pipe diameter of 1.5 inches to 2 inches to enlarge the flow which occurred in the distribution network.
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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