Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 801-820 of 11355
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Kajian Metode Analytical Hierarchy Process (AHP) pada Pengukuran Kinerja Lingkungan Perumahan Villa Zeqita Medan Tuntungan di Masa Pandemi Covid-19
(Universitas Sumatera Utara, 2023)This research calculates the selection of priorities that influence the measurement of environmental performance, namely using the Analytical Hierarchy Process (AHP) method, which is one of the decision making methods. To ... -
Isolasi dan Identifikasi Golongan Senyawa Fenolik dari Daun Tumbuhan Attarasa (Litsea cubeba (Lour.) Pers)
(Universitas Sumatera Utara, 2022)The phenolic compound had been isolated from the leaves of Attarasa (Litsea Cubeba (Lour.) Pers). Isolation was carried out by maceration extraction method with methanol and methanol extact was re-extracted with ethyl ... -
Pemanfaatan Limbah Ampas Tebu sebagai Arang Aktif dalam Penurunan Logam Besi (Fe) dan Kromium (Cr) pada Air Sumur Bor
(Universitas Sumatera Utara, 2022)Bagasse has a cellulose content of 35.01%. Where the very high cellulose content has the potential as activated carbon. Activated carbon is used as an adsorbent for heavy metals. The purpose of this study was to see the ... -
Rancang Bangun Sistem Generator Termoelektrik Sederhana Memanfaatkan Panas Tungku Pembakaran Sampah
(Universitas Sumatera Utara, 2022)Indonesia is a country that has great natural resource potential Natural resources so far in terms of utilisation are still very inefficient. The fuel to make electrical energy sources is obtained from fossil energy sources ... -
Estimasi Parameter Regresi Logistik Biner Menggunakan Metode Maximum Likelihood
(Universitas Sumatera Utara, 2022)This study discusses parameter estimation in binary logistic regression using maximum likelihood. Binary logistic regression is a logistic regression with the dependent variable being dichotomous or consisting of 2 categories. ... -
Studi Etnobotani Tumbuhan Obat pada Masyarakat Simalungun di Kecamatan Pematang Sidamanik Kabupaten Simalungun
(Universitas Sumatera Utara, 2022)The study of the ethnobotany of the medicinal plants at the Simalungun Community, Pematang Sidamanik District, Simalungun Regency, North Sumatra was aim to determine the utilization, the perception, the types of medicinal ... -
Penaksiran Parameter pada Analisis Faktor Menggunakan Metode Maximum Likelihood
(Universitas Sumatera Utara, 2022)This study aims to estimate the parameters of factor analysis using the maximum likelihood method. This research describe how to estimate factor extraction parameters from factor analysis and factor analysis carried out ... -
Pengaruh Penambahan Carboxymethyl Celullose sebagai Template terhadap Porositas Material Kalsium Silikat
(Universitas Sumatera Utara, 2022)Research has been conducted on the formation of pore calcium silicate material with the addition of Carboxymethyl Cellulose as a template. Synthesis of Calcium Silicate is done by reacting water glass with Carboxymethyl ... -
Pengaruh Penambahan Resin Epoksi Pada Sifat Thermal dan Morfologi Campuran Karet Alam Cair-Aspal
(Universitas Sumatera Utara, 2023)Asphalt is widely used as a road construction material. Thermal and Morphological Analysis of Liquid Natural Rubber-Asphalt Mixture and Epoxy Resin on the Strength Properties of Asphalt has been carried out. Asphalt used ... -
Uji Aktivitas Antibakteri dan Antioksidan dari Ekstrak Metanol Daun Butterbur (Petasites Hybridus) (L) G. Gaertn., B.Mey.&Scherb)
(Universitas Sumatera Utara, 2023)The dry powder of butterbur leaves (Petasites Hybridus) was extracted using methanol as a solvent. The methanol extract obtained was tested for antibacterial activity using the paper disc diffusion method and the antioxidant ... -
Keragaman dan Potensi Bakteri Pendegradasi Plastik yang Diisolasi dari Sampah Plastik Tempat Pembuangan Akhir (TPA) Terjun Medan Marelan
(Universitas Sumatera Utara, 2023)The difficulty of degrading plastic waste in nature causes plastic waste to accumulate and become a problem in the environment, especially in landfill sites. This study aims to determine the diversity and potential of ... -
Karakteristik Sifat Mekanik, Morfologi, dan Termal Campuran Karet Alam (SIR-10) dan Karet Alam Epoksi dengan Penambahan Bentonit sebagai Bahan Pengisi
(Universitas Sumatera Utara, 2022)Research on the mechanical, morphological, and thermal characteristics of a mixture of natural rubber (SIR-10) and epoxidized natural rubber with the addition of bentonite as a filler has been carried out. The use of C9 ... -
Analisis Sifat Fisikokimia Lemak Babi pada Mie Goreng dan Analisis DNA Babi Menggunakan Polymerase Chain Reaction (PCR)
(Universitas Sumatera Utara, 2022)Lard is used as a component in food or as a food supplement. Simple analytical methods are required in determining lard in adulterated foods. The purpose of this study was to prepare and extract lard from fried noodles ... -
Jenis Polen Dominan pada Koloni Klanceng (Trigona Spp.) di Taman Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Sumatera Utara
(Universitas Sumatera Utara, 2023)The use of park as a conservation area is one of the breakthroughs made by FMIPA campus in Universitas Sumatera Utara. It becomes eco green campus. Bee Trigona sp. is a type of honey-producing bee that does not have a sting ... -
Potensi Aktinomisetes Laut Kawasan Pantai Cermin Kabupaten Serdang Bedagai dalam Menghambat Methicillin-Resistant Staphylococcus Aureus (MRSA)
(Universitas Sumatera Utara, 2023)Actinomycetes are a group of bacteria that produce antibiotics. Until now, actinomycetes are still being explored to determine the potential to produce compounds to inhibit methicillin-resistant Staphylococcus aureus (MRSA). ... -
Analisis Vegetasi Tumbuhan Invasif Tingkat Semak di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)The Sipirok Botanical Garden is a conservation area which has several forests that have been cleared as a result of remnants of coffee and rubber plantations owned by the community. Thus, it is easy for bush-level invasive ... -
Kadar Klorofil, Timbal (Pb), dan Kerapatan Stomata Daun Kersen (Muntingia Calabura L.) pada Empat Lokasi Berbeda, Kota Medan
(Universitas Sumatera Utara, 2024)The research was conducted since January until June 2023 at Laboratorium Fisiologi Tumbuhan dan Kultur Jaringan, Laboratorium Mikrobiologi, Fakultas Matematika dan Ilmu Pengetahuan Alam and UPT. Laboratorium Penelitian ... -
Potensi Aktinomisetes Laut Kawasan Pantai Cermin Kabupaten Serdang Bedagai dalam Menghambat Methicillin-Resistant Staphylococcus Aureus (MRSA)
(Universitas Sumatera Utara, 2023)Actinomycetes are a group of bacteria that produce antibiotics. Until now, actinomycetes are still being explored to determine the potential to produce compounds to inhibit methicillin-resistant Staphylococcus aureus (MRSA). ... -
Potensi Actinomycetes Isolat Hutan Mangrove Sicanang Kecamatan Medan Belawan dalam Menghambat Pertumbuhan Methicillin-Resistant Staphylococcus Aureus (MRSA)
(Universitas Sumatera Utara, 2023)The utilization of microorganisms as antibiotic-producing agents, especially actinomycetes, is still being developed in line with the increasing need to fight resistance bacteria such as Methicilin-resistant Staphylococcus ... -
Jenis - Jenis Moraceae di Kebun Raya Sipirok Kabupaten Tapanuli Selatan, Sumatera Utara
(Universitas Sumatera Utara, 2023)Moraceae is one of the flowering plant families distributes at primary or secondary forest regions. The Sipirok Botanical Garden is one of the conservation areas that has five vegetation types which were residual natural ...