Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 1141-1160 of 11350
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Penerapan Metode Servqual dan Importance Performance Analysis dalam Analisis Tingkat Kepuasan Pasien terhadap Kualitas Pelayanan di RSU Wira Husada Kisaran
(Universitas Sumatera Utara, 2023)One of the health care facilities are hospital. Hospitals are required to provide quality services to give satisfaction to the patient. Services that are less than optimal will reduce the number of patients visiting. ... -
Uji Efektivitas Kitosan-Nanopartikel Zno Sebagai Antimikroba pada Kemasan Makanan Berbasis Selulosa Bak Teri
(Universitas Sumatera Utara, 2023)Research on the manufacture of antimicrobial food packaging based on bacterial cellulose with chitosan-ZnO nanoparticle antimicrobial coating has been carried out. This study aims to determine the effectiveness of chitosan, ... -
Kepadatan dan Pola Persebaran Populasi Burung Rangkong (Bucerotidae) di Stasiun Penelitian Ketambe Kabupaten Aceh Tenggara
(Universitas Sumatera Utara, 2023)The existence of hornbills in the wild is very important to know in monitoring and protection efforts, especially in Ketambe Research Station. The aim of this study was to study the density, distribution pattern of the ... -
Kajian Kesetimbangan Nash dan Metode Swastika dalam Teori Permainan dan Penerapannya
(Universitas Sumatera Utara, 2023)In game theory, the settlement for a two-sided zero-sum game is based on whether there is a saddle point in the payout matrix. When there is a saddle point, then the solution would be done with a pure strategy, but if ... -
Pengaruh Penambahan Variasi Plasticizer Sorbitol terhadap Karakterisasi Bioplastik Pati Porang (Amorphophallus Oncophyllus) dan Kitosan
(Universitas Sumatera Utara, 2023)Research has been carried out on the manufacture of bioplastics with variations in the composition of porang starch: chitosan with glycerol plasticizer and the effect of adding sorbitol (0%, 25%, 50%, 75%, 100%) with the ... -
Pembuatan Alat Pemantauan Tekanan Oksigen dalam Tabung Jarak Jauh Berbasis Internet Of Things (Iot) Menggunakan Server Thingspeak
(Universitas Sumatera Utara, 2023)Oxygen Tube have become a much-needed item due to the very fast and easily contagious spread of the virus, making it difficult for everyone to avoid being infected with the COVID-19 type virus that attacks the respiratory ... -
Studi Pembuatan Carbon Black dari Minyak Kelapa dan N-Heksana Menggunakan Metode Lampblack serta Karakterisasinya
(Universitas Sumatera Utara, 2023)Carbon black is a form of impurities from carbon resulting from incomplete combustion of fossil fuels or biomass combustion. This study aims to produce carbon black from a mixture of coconut oil and n-hexane using a cracking ... -
Analisis Sem-Pls (Structural Equation Modelling Partial Least Square) dan Segmentasi dengan Fimix-Pls (Finite Mixture Partial Least Square) (Studi Kasus : Struktur Kemiskinan di Indonesia Tahun 2022)
(Universitas Sumatera Utara, 2023)In analyzing with statistics, there are variables that cannot be observed directly (unobserved variables). Unobserved variables can be analyzed by the Structural Equation Modeling (SEM) method. SEM has 2 types of analysis, ... -
Analisis Metode Konvolusi dengan Pendekatan Jaringan Saraf Tiruan untuk Mendeteksi Keaslian Citra Digital
(Universitas Sumatera Utara, 2023)Digital images are becoming increasingly important in toda y's digital era, but with technological developments, the problem of authenticity of digital images also arises. Therefore, this swdy aims to analyze the convolution ... -
Sintesis Kardanil Asetat Melalui Reaksi Esterifikasi Kardanol Hasil Isolasi Kulit Biji Jambu Mete (Anacardium Occidentale L.) dengan Asetat Anhidrida pada Variasi Molar
(Universitas Sumatera Utara, 2023)Synthesis of cardanyl acetate was carried out through an esterification reaction between cardanol isolated from the shell of cashew nuts (Anacardium occidentale L.) and acetic anhydride. Cardanol isolation was carried out ... -
Pengaruh Adsorben Terhadap Penghilangan Tar dan Kestabilan Penyimpanan Asap Cair Hasil Pirolisis Tempurung Kelapa
(Universitas Sumatera Utara, 2023)Liquid smoke or bio-oil is one of the products produced from pyrolysis of biomass. Liquid smoke contains many organic components that can potentially replace liquid conventional fuels. However,the use of liquid smoke still ... -
Game Theory untuk Optimisasi Strategi Pemasaran Program Studi Bidang Saintek pada Fakultas Vokasi Universitas Sumatera Utara
(Universitas Sumatera Utara, 2023)The rapid development of the world of education has given rise to intense competition in attracting prospective students. This phenomenon does not only occur in elementary schools, but also at higher education levels ... -
Sintesis dan Karakterisasi Komposit Bafe 12o19/RGO Berbasis Pasir Besi Alam Sebagai Penyerap Gelombang Mikro
(Universitas Sumatera Utara, 2023)In this study, composites of barium hexaferrite with Reduced Graphene Oxide (RGO) were synthesized using the ultrasonication method as microwave absorbers. was synthesized from natural iron sand as the precursor material ... -
Uji Uniformity dan Kesesuaian tebal Slice Menggunakan ACR 464 Phantom Pada Kualitas Citra Pesawat CT-Scan 16 Slice
(Universitas Sumatera Utara, 2023)Research has been conducted on the uniformity test and the suitability of slice thickness on CT-Scan images using the American College Of Radiology (ACR) Phantom. Which aims to determine the accuracy and uniformity value ... -
Uji Efektivitas Ekstrak Kulit Durian (Durio zibethinus Murr.) terhadap Ketebalan Epitel dan Fibroblas Kulit Tikus (Rattus norvegicus) Model Kanker Kulit
(Universitas Sumatera Utara, 2023)Durian peel methanol extract contains secondary metabolite compounds such as flavonoids and alkaloids. Cytoxicity in flavonoid-controlled cancer cells has the ability to regulate macrophages in the elimination of cancer ... -
Gambaran Histologi Testis Mencit (Mus musculus L.) Jantan yang diberi Limbah Degumming Kokon Ulat Sutera (Bombyx mori L.) yang telah dipaparkan oleh Allethrin
(Universitas Sumatera Utara, 2023)Silkworm cocoon degumming waste contains amino acids in the form of sericin and fibroin which have the potential to stimulate spermatogenesis and to protect sperm from free radicals. This research was carried out from ... -
Gambaran Histologi Pankreas Mencit (Mus Musculus L.) Jantan Yang Diberi Limbah Degumming Kokon Ulat Sutera (Bombyx mori L.) yang telah dipapar Obat Nyamuk Elektrik
(Universitas Sumatera Utara, 2023)Research of the histology of the male mice (Mus musculus L.) pancreas exposed to electric mosquito and then given by degumming silkworm cocoon’s (Bombyx mori L.) waste had been carried out from December 2022 to March 2023. ... -
Keragaman Jamur pada Plastik Tempat Pembuangan Akhir (TPA) Terjun Medan Marelan dan Potensinya dalam Mendegradasi Sampah Plastik
(Universitas Sumatera Utara, 2023)Plastic waste, including Low-Density Polyethylene (LDPE), Linear-Low Density Polyethylene, High-Density Polyethylene (HDPE), and Polypropylene (PP), is predominantly found in landfill sites. This study aimed to investigate ... -
Menganalisis Tingkat Kepuasan Pelayanan Hotel Saulina Resort Pangururan Kabupaten Samosir dengan Menerapkan Metode Importance Performance Analysis
(Universitas Sumatera Utara, 2023)The Importance Performance Analysis (IPA) method is a measurement method to determine the level of satisfaction, as well as ordinal logistic regression to find out what factors influence the level of satisfaction in a ... -
Isolasi Serta Skrining Bakteri Selulolitik dari Bekicot (Achatina fulica) dan Potensi Selulolitiknya
(Universitas Sumatera Utara, 2023)Achatina fulica is one of herbivorous animal belongs to the gastropod class that most common find in tropical climates and includes to a pest, it gives probability that A. fulica has a high unique cellulolytic microbiota ...