Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 1301-1320 of 11345
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Metode Game Theory untuk Mengkaji Strategi Pelanggan Optimum pada Traveloka dan Tiket.com
(Universitas Sumatera Utara, 2023)As it becomes easier for people to travel and the rapid development of digital technology, people prefer to order tickets online. This has encouraged many e-commerce online ticket sales to emerge in their own way to attract ... -
Pengaruh Ekstrak Kulit Durian (Durio zibethinus Murr.) Terhadap Gambaran Histologi Paru-paru Tikus (Rattus norvegicus) Yang Diinduksi 7,12-Dimetilbenz (α) Antrasen (DMBA).
(Universitas Sumatera Utara, 2023)Durian peel extract is one of the raw materials for herbal medicine that contains large amounts of flavonoids, such as flavones and flavanols, which function as antiproliferative and antioxidant. The research was conducted ... -
Uji Efektivitas Ekstrak Kulit Durian (Durio zibethinus Murr.) terhadap Histomorfometri Hati Tikus (Rattus norvegicus) yang Diinduksi 7,12-Dimetilbenz (α) Antrasen (DMBA)
(Universitas Sumatera Utara, 2023)The research on the effectiveness of the durian peel extract (Durio zibethinus Murr.) on the liver histomorphometry of rats (Rattus norvegicus) induced by 7,12-Dimethylbenz (α) Antrasen (DMBA) was conducted from September ... -
Potensi Aktinomisetes Danau Lau Kawar dalam Menghambat Methicillin-Resistant Staphylococcus aureus (MRSA)
(Universitas Sumatera Utara, 2023)The Actinomycetes group is known as an antibiotic producer and is still being explored and studied for its ability to inhibit resistant bacteria such as Methicillin-Resistant Staphylococcus aureus (MRSA). This study aims ... -
Pembuatan dan Karakterisasi Papan Komposit Serbuk Cangkang Telur- Epoksi
(Universitas Sumatera Utara, 2023)A research was carried out on eggshell powder composite boards on a nanoparticle size. To obtain the size of the nanoparticles in the eggshell, it would be calibrated by using a furnace at 800 °C for the upcoming 6 hours ... -
Aplikasi Logika Fuzzy Menggunakan Metode Mamdani dalam Pengambilan Keputusan Penentuan Produksi Kopi Qoffai Sidikalang
(Universitas Sumatera Utara, 2021)Fuzzy logic is one method for analyzing systems that contain uncertainty. This method employs the Mamdani method, often kno wn as the Min-Max method. The steps of system design are (a) Fuzzification or construction of fuzzy ... -
Efek Ekstrak Daun Afrika (Vernonia Amygdalina Del.) Terhadap Gambaran Histologi Ginjal Mencit (Mus Musculus L.) Model Diabetes
(Universitas Sumatera Utara, 2023)Research on the effects of African leaf extract (Vernonia amygdalina Del.) on the histological appearance of the kidneys of mice (Mus musculus L.) the diabetes model has been carried out from May 2022 to July 2022. ... -
Analisis Perbandingan Panjang dan Bobot pada Budi Daya Ikan Nila Terhadap Hasil Uji Produk Inovatif Smartpond Menggunakan Metode Relative Growth Rate
(Universitas Sumatera Utara, 2023)Fish cultivation needs to be done to meet the increasing market demand. The increasing demand for freshwater fish in traditional markets has prompted the Indonesian people to take the initiative to cultivate freshwater ... -
Pembuatan Edible Film dari Hidrolisat Protein Ikan dan Rumput Laut (Gracilaria Sp.) dengan Penambahan Kitosan dan Gliserol
(Universitas Sumatera Utara, 2023)The use of fish protein hydrolysate (FPH) combined with seaweed Gracilaria sp. can be a new innovation in the development of active food packaging. This study aims to obtain edible films that have active properties for ... -
Pemanfaatan Air Kelapa (Cocos Nucifera L.) Sebagai Pupuk Organik Cair (Poc) Terhadap Pertumbuhan Tanaman Sawi Pagoda (Brassica Rapa Var.Narinosa L.)Pemanfaatan Air Kelapa (Cocos Nucifera L.) Sebagai Pupuk Organik Cair (Poc) Terhadap Pertumbuhan Tanaman Sawi Pagoda (Brassica Rapa Var.Narinosa L.)
(Universitas Sumatera Utara, 2023)This study aims to determine the effect of liquid organic fertilizer (POC) made from old coconut water (Cocos nucifera L.) on the growth of pagoda mustard (Brassica rapa var.narinosa L.). Liquid organic fertilizer is ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Kulit Batang Tumbuhan Teh (Camellia sinensis (L) Kuntze)
(Universitas Sumatera Utara, 2023)Isolation and identification of the class of flavonoid compound contained in the bark of the tea plant (Camellia sinensis (L) Kuntze) through stage by maceration extraction using methanol as a solvent. The concentrated ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Daun Tumbuhan Biwa (Eriobotrya japonica (Thunb.) Lindl.)
(Universitas Sumatera Utara, 2023)The flavonoid compound had been isolated from the leave of biwa (Eriobotrya japonica (Thunb.) Lindl.). Isolation was carried out by the method of maceration extraction with methanol and the methanol extract was ... -
Pertumbuhan Tanaman Bayam Merah (Amaranthus tricolor) dengan Nutrisi Pupuk Organik Cair Kulit Nanas (Ananas comosus) pada Sistem Hidroponik Wick
(Universitas Sumatera Utara, 2023)This study aims to determine the effect of applying liquid organic fertilizer made from pineapple peel on the growth of red spinach (Amaranthus tricolor) to obtain the optimum POC concentration of pineapple peels to a ... -
Uji Efektivitas Nanoherbal Daun Gagatan Harimau (Vitis gracilis Wall.) Terhadap Histologi Testis pada Tikus Wistar (Rattus norvegicus) Jantan Yang Diberi Latihan Fisik
(Universitas Sumatera Utara, 2023)Nanoherbal of the gagatan harimau (Vitis gracilis Wall.) contains secondary metabolites such as flavonoids and terpenoids which can increase the number of spermatogonia cells, spermatocytes and spermatids. Tissues need ... -
Karakteristik Edible Film dari Pati Kentang Termodifikasi (Solanum tuberosum L.) dengan Penambahan Gliserol dan Kitosan dari Sisik Ikan Mas sebagai Pengemas Fillet Ikan
(Universitas Sumatera Utara, 2023)Characteristics of edible film from modified potato starch with the addition of glycerol and chitosan from carp scales as fish fillet packaging was made by heating and stirring at 70°C for 30 minutes and drying for 2 ... -
Penetapan Kadar Pewarna Simultan pada Minuman Ringan Menggunakan High Performance Liquid Chromatography
(Universitas Sumatera Utara, 2023)Synthetic dyes are widely used in various soft drinks because of their resistance to light, temperature, oxygen and oxidation, which can increase the product's attractiveness. However, some adverse health effects will ... -
Analisis Kadar Hidrokuinon dalam Sediaan Cream Malam di Klinik Kecantikan Kota Medan secara Kromatografi Cair Kinerja Tinggi dan Spektrofotometer UV-Visible
(Universitas Sumatera Utara, 2023)The purpose of this study was to qualitatively and quantitatively analyze the hydroquinone content in night cream cosmetics circulating in Medan City and to compare the HPLC method with UV-Vis Spectrophotometry in ... -
Modifikasi Aspal – Liquid Natural Rubber (LNR) dengan menggunakan EmulsifierTriton X-114 melalui Serapan Fourier Transform Infrared (FTIR)
(Universitas Sumatera Utara, 2023)Telah dilakukan penelitian modifikasi aspal polimer dimana aspal dengan Liquid Natural Rubber (LNR) dengan campuran Triton X-114 dan fenilhidrazin. Preparasi dan karakterisasi Liquid Natural Rubber (LNR) sebagai ... -
Uji Efektivitas Nanoherbal Daun Gagatan Harimau (Vitis gracilis Wall.) Terhadap Histologi Hati pada Tikus Wistar (Rattus norvegicus) Jantan yang Diberi Latihan Fisik
(Universitas Sumatera Utara, 2023)The nanoherbal gagatan harimau leaf (Vitis gracilis Wall.) contains secondary metabolite compounds like flavonoids that can lessen the severity of liver lessions. Hepatocyte cells can suffer harmly from oxidative stress ... -
Pengaruh Kualitas Penyimpanan Spesimen Tes Diagnositik Sars-Cov-2 Terhadap Cycle Threshold (Ct) Range di Medan, Sumatera Utara
(Universitas Sumatera Utara, 2023)Coronavirus (COVID-19) pandemic is an infectious disease which has resulted in 643,176,637 confirmed cases and 6,634,815 deaths worldwide. RT-PCR examination of naso/oropharyngeal swab specimens is the Gold Standard ...