Department of Biology: Recent submissions
Now showing items 21-40 of 1202
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Jenis-Jenis Mamalia di Kawasan Pasca Rehabilitasi Resor Sei Betung, Taman Nasional Gunung Leuser, Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2024)Resor Sei Betung area in Gunung Leuser National Park (GLNP) has undergone a rehabilitation process after more than 20 years of restoration. This area was returned to the management of the National Park after experiencing ... -
Efektivitas Pemberian Nanoherbal Gagatan Harimau (Paraboea leuserensis B.L.Burtt) terhadap Histologi, Ekspresi Caspase 3 dan Caspase 10 pada Hati dan Otot Tikus (Rattus norvegicus L.) Setelah Latihan Fisik Maksimal
(Universitas Sumatera Utara, 2024)This study aims to analyze Histology, Expression of Caspase 3 and Caspase 10 in Rat Liver and Muscle Cells After Maximum Physical Exercise Given of Gagatan Harimau Nanoherbal (Paraboea leuserensis B.L.Burtt). The research ... -
Pemberian Pupuk Organik Cair Daun Kelor (Moringa oliefera L.) terhadap Pertumbuhan Sawi Caisim (Brassica juncea L.) dengan Metode Hydroponik Wick
(Universitas Sumatera Utara, 2024)Mustard greens are a type of leafy vegetable plant that has high economic value and contains many vitamins and minerals. This research aims to analyze the growth of Mustard greens in Wick hydroponics by adding Moringa leaf ... -
Aktivitas Makan Orang Utan Sumatera (Pongo abelii Lesson, 1827) di Stasiun Penelitian Sikundur, Aceh Tamiang Taman Nasional Gunung Leuser
(Universitas Sumatera Utara, 2024)Gunung Leuser National Park is the only habitat for Sumatran orangutans. The presence of Sumatran orangutans plays an important role in dispersing plant seeds. Seed dispersal can reduce competition and increase seed survival. ... -
Efek Pemberian Ekstrak Etanol Biji Pinang (Areca catechu L.) terhadap Morfologi dan Histologi Testis Tikus (Rattus norvegicus L.) yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Diabetes Melittus (DM) can cause demage to the testicular structure. The content of secondary metabolites found in areca nut can be used as an antidiabetic agent. But information on the safety of areca nut ethanol extract ... -
Karakterisasi Biosurfaktan dari Bakteri Bacillus cereus
(Universitas Sumatera Utara, 2024)Many studies have been carried out on the ability of bacteria to break down various hydrocarbon compounds including pesticides. Further research on the enzymes that code for these degrading genes have also been carried ... -
Potensi Ekstrak Etanol Buah Pare (Momordica charantia L.) Sebagai Renoprotektor pada Mencit (Mus musculus L.) Yang Dipaparkan Obat Antinyamuk Elektrik (Allethrin)
(Universitas Sumatera Utara, 2025)The ethanol extract of bitter melon (Momordica charantia L.) fruit contains of flavonoid compounds that has function as antioxidants by neutralizing of the free radicals. Electric mosquito repellents contain free radicals ... -
Pemanfaatan Ekstrak Etanol Buah Pare (Momordica charantia L.) sebagai Hepatoprotektor pada Mencit (Mus musculus L.) yang Dipaparkan Obat Antinyamuk Elektrik (Allethrin)
(Universitas Sumatera Utara, 2025)Free radicals found in electrical mosquito repellent can cause damage to the liver organs. The damage can be treated by administering antioxidants. Bitter melon (Momordica charantia L.) contains of the flavonoid compounds ... -
Tingkat Kepekaan Staphylococcus sp. Isolat Lalat Rumah (Musca domestica L.) Sekitar Rumah Sakit terhadap Beberapa Jenis Antibiotik
(Universitas Sumatera Utara, 2025)Houseflies (Musca domestica L.) are vector that carry disease-causing agents microorganisms from one environment to the others. The presence of houseflies at the hospital environment is likely to carry pathogenic bacteria ... -
Kemampuan Bakteri Endofit Tumbuhan Mangrove Avicennia marina dalam Menghambat Serangan Penyakit Layu Fusarium pada Tanaman Cabai
(Universitas Sumatera Utara, 2025)Mangroves are known to have special abilities to adapt and grow in extreme environmental conditions. Mangroves have been reported to harbor endophytic bacteria that have potential as biological control agents. Additionally, ... -
Kajian Pemberian Limbah Cair Pabrik Kelapa Sawit pada Areal Tanaman Buah Naga terhadap Keanekaragaman Makrofauna Tanah
(Universitas Sumatera Utara, 2025)The application of palm oil mill effluent (POME) on dragon fruit plant areas as fertilizer with variations in the application time will affect the presence and diversity of soil macrofauna, which in turn can reflect the ... -
Potensi Enterobacter Sp. LB04, Bacillus Cereus LB13, dan Pseudomonas Sp. LB14 Sebagai Agen Biofungisida Cendawan Penyebab Kerusakan Buah Tomat
(Universitas Sumatera Utara, 2024)Postharvest fruit rot in tomatoes due to pathogenic field fungi are estimated to cause between 25 and 42% economic losses of total production globally. The primary utilization of synthetic fungicides to control postharvest ... -
Gambaran Histologi Pankreas Tikus (Rattus norvegicus) yang Diinduksi 7,12-Dimetilbenz-[a] Antrasena (DMBA) Dengan Pemberian Ekstrak Etanol Kulit Durian (Durio zibethinus Murr.)
(Universitas Sumatera Utara, 2025)Durian (Durio zibethinus Murr.) contains secondary metabolite compound, flavonoids metabolite compound has a role as an antioxidant. Flavonoid compounds are able to capture and neutralize free radicals so they can repair ... -
Studi Populasi Ikan Bilih (Mystacoleucus padangensis Bleeker, 1852) di Perairan Danau Toba, Sumatera Utara
(Universitas Sumatera Utara, 2025)Lake Toba has considerable fishery resources with various types of fishes utilized by the community, one of them is bilih fish. Bilih fish (Mystacoleucus padangensis) is an endemic fish of Lake Singkarak which was introduced ... -
Gambaran Histologi Testis Mencit (Mus musculus L.) yang Terpapar Asap Rokok dengan Pemberian Ekstrak Daun Sirih Cina (Peperomia pellucida L.)
(Universitas Sumatera Utara, 2025)Chinese betel leaf extract has the potential to omit the free radicals due to its antioxidant activity. The aim of this study was to determine the efficacy of Chinese betel leaf extract on the morphology and histology of ... -
Jenis dan Keanekaragaman Aves di Kampus Universitas Sumatera Utara, Kota Medan, Sumatera Utara
(Universitas Sumatera Utara, 2024)University of North Sumatera as a strategic place to investigate the biodiversity of flora and fauna as a source if germplasm of life in the world of education. The University of North Sumatera as a green campus is considered ... -
Tingkat Penyembuhan Luka Bakar dengan Penggunaan Salep Propolis Lebah (Trigona Spp.) terhadap Epidermis Kulit Hewan Uji Mencit (Mus Musculus L.) Jantan
(Universitas Sumatera Utara, 2024)Stingless bee propolis (Trigona spp.) contains flavonoid, tannin, and saponin compounds that can potentially be antifungal, antimicrobial, and anti-inflammatory. This study aimed to analyse the effect of the bee propolis ... -
Aktivitas Harian Siamang (Symphalangus syndactylus Raffles) di Medan Zoo, Simalingkar Sumatera Utara
(Universitas Sumatera Utara, 2024)Siamang (Symphalangus syndactylus) is one of the primates of the Hylobatidae family that is endemic to the island of Sumatra. The difference in natural habitat conditions with artificial habitats will give an impact on the ... -
Jenis - Jenis Tumbuhan Sumber Polen dan Analisis Faktor Lingkungan terhadap Aktivitas Terbang Heterotrigona itama (Cockerell, 1918) di Desa Bongguron, Kabupaten Simalungun
(Universitas Sumatera Utara, 2024)Heterotrigona itama is one of the bees that is widely found in tropical areas such as Indonesia. These bees do not have stingers and live in colonies. H. itama can produce honey, propolis, bee bread and also play a role ... -
Potensi Khamir Endofit Buah Markisa (Passiflora Edulis) dan Asam Organik yang Dihasilkan dalam Menghambat Aspergillus Flavus Toksigen
(Universitas Sumatera Utara, 2024)Passion fruit endophytic yeasts live mutualistically in plant tissues without harming the host plant. This study aims to enumerate the population of passion fruit endophytic yeasts and their ability to produce organic acids ...