Browsing Undergraduate Theses by Issue Date
Now showing items 1-20 of 998
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Aktivitas Berang-Berang Cakar Kecil (Aonyx cinereus) di Kebun Binatang Rahmat Zoo and Park, Desa Bengabing, Pegajahan, Sumatera Utara
(Universitas Sumatera Utara, 2026)This study aims to examine the activity patterns of small-clawed otters (Aonyx cinereus) maintained at Rahmat Zoo and Park, Bengabing Village, Pegajahan, North Sumatra. From a biological perspective, the study of daily ... -
Isolasi dan Sekuensing Fragmen cDNA Gen pi-d2 sebagai Ketahanan terhadap Penyakit Blas pada Padi Sigudang (Oryza sativa L.) dari Sumatera Utara
(Universitas Sumatera Utara, 2026)Rice blast disease caused by the fungus Pyricularia oryzae is one of the major threats to rice production. Several resistant genes have been identified to confer resistance against blast disease, including the pi-d2 gene. ... -
Isolasi dan Sekuensing Fragmen cDNA Gen pi-ta sebagai Ketahanan terhadap Penyakit Blas pada Padi (Oryza sativa L.) Sigudang dari Sumatera Utara
(Universitas Sumatera Utara, 2026)Blast disease caused by Pyricularia oryzae is one of the main threats to rice production in Indonesia. Several local rice varieties in North Sumatra, including the Sigudang cultivar, showed resistant to blast disease. ... -
Kepadatan Tikus dan Ektoparasitnya di Pemukiman Padat Penduduk di Kelurahan Mesjid, Kecamatan Medan Kota, Kota Medan, Sumatera Utara
(Universitas Sumatera Utara, 2026)This study was conducted to determine the types of rats and their ectoparasites, the relative density (trap success) of rats, the specific flea index (SFI), the prevalence, and the intensity of ectoparasite infestation ... -
Isolasi dan Uji Aktivitas Antijamur Ekstrak Etanol dan N-Heksan Tanaman Ciplukan (Physalis Angulata L.) terhadap Jamur Patogen Klinis
(Universitas Sumatera Utara, 2026)Ciplukan (Physalis angulata L.) is a medicinal plant that contains secondary metabolites with potential as an alternative to synthetic antibiotics for antifungal therapy. This study aimed to determine the phytochemical ... -
Keanekaragaman Makrozoobenthos di Sungai Tanjung Pura, Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2026)The Tanjung Pura River, Langkat Regency, North Sumatra, is an aquatic ecosystem experiencing anthropogenic pressure from livestock farming activities, former sand dredging, and domestic waste. This study aims to analyze ... -
Uji Aktivitas Antimikroba Ekstrak Daun Bangun-bangun (Coleus Amboinicus L.) terhadap Beberapa Isolat Mikroba Patogen Klinis
(Universitas Sumatera Utara, 2026)Coleus amboinicus Lour., commonly known in North Sumatra as “daun bangun-bangun,” is an aromatic plant from the Lamiaceae family traditionally used as an anti-infective, anti-inflammatory, and wound-healing agent. Its ... -
Potensi Khamir Endofit Daging Buah Nanas Madu (Ananas Comosus) Sebagai Penghasil Asam Indol Asetat (IAA) dan Pelarut Fosfat
(Universitas Sumatera Utara, 2026)This study aims to obtain endophytic yeasts isolated from pineapple (Ananas comosus) fruit flesh and to evaluate their potential for indole acetic acid (IAA) production and phosphate solubilization. The yeasts were ... -
Deteksi Gen CehA Pengkode Enzim Karbofuran Hidrolase pada Bacillus cereus Strain HS06
(Universitas Sumatera Utara, 2026)The cehA gene is one of the genes encoding the carbofuran hydrolase (KH) enzyme, which plays a role in the biodegradation of the insecticide carbofuran. This study aimed to detect the presence of the cehA gene in Bacillus ... -
Karakterisasi Enzim Karbofuran Hidrolase dari Bacillus Cereus Strain HS06 dan Bacillus Paramycoides Strain BSAS15
(Universitas Sumatera Utara, 2026)Bacillus cereus strain HS06 and Bacillus paramycoides strain BSAS15 are two bacteria known to have the ability to degrade carbofuran, an active compound used in pesticides which are very dangerous to the environment. This ... -
Potensi Bakteri Penghasil Biosurfaktan Dari Limbah Cair Industri Kelapa Sawit Dalam Mendegradasi Minyak Goreng Bekas
(Universitas Sumatera Utara, 2025)The increasing need for cooking oil as a food ingredient has resulted in an increase in the amount of used cooking oil produced, causing pollution which has negative effects on health and the environment. This research ... -
Potensi Jamur Nematofagus (Paecilomyces fumosoroseus) dan Bakteri Penambat Nitrogen (Azotobacter sp.) Dalam Mengurangi Infeksi Meloidogyne hapla Pada Tanaman Tomat (Solanum lycopersicum L.)
(Universitas Sumatera Utara, 2025)Tomato plants (Solanum lycopersicum L.) are horticultural crop that often suffer yield losses due to the root-knot nematode attacks. This study aims to determine the ability of nematophagous fungi (Paecilomyces fumosoroseus) ... -
Potensi Jamur dari Limbah Detergen dalam Mendegradasi Linear Alkylbenzene Sulfonate
(Universitas Sumatera Utara, 2025)Contamination of detergent containing linear alkylbenzene sulfonate (LAS) waste could occur due to the absence of a standard system regarding waste management, especially from laundry businesses. This research aims to ... -
Pola Pertumbuhan dan Faktor Kondisi Ikan Iblis Merah (Amphilopus labiatus) di Perairan Danau Toba Sumatera Utara
(Universitas Sumatera Utara, 2025)The red devil fish (Amphilophus labiatus) is a type of predatory fish that also invasive. It is posing a threat to the endemic fish and other economically important fish species in a body of water. The presence of the red ... -
Skrining Fitokimia dan Uji Aktivitas Antimikroba Ekstrak Metanol Akar Sidaguri (Sida rhombifolia) terhadap Beberapa Bakteri dan Jamur Patogen Manusia
(Universitas Sumatera Utara, 2025)Infections caused by pathogenic microorganisms are generally treated with antibiotics; however, inappropriate of antibiotics use can lead to resistance, in turn other antimicrobial agents need to be develope. Many antimicrobial ... -
Optimalisasi Ekstrak Daun Sirih Cina (Peperomia Pellucida L.) Terhadap Histologi Paru-Paru Mencit (Mus Musculus L.) Yang Dipapar Asap Rokok
(Universitas Sumatera Utara, 2025)Cigarette smoke contains various harmful substances, including free radicals that smoke can lead to oxidative stress, damaging lung cells, increasing the risk of inflammation, and impairing of the lung function. The use ... -
Hubungan Umur dengan Berat Feses Gajah Sumatera (Elephas Maximus Sumatranus) di Kawasan Taman Nasional Gunung Leuser Resort Tangkahan, Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2025)This research aims to explain the relationship between age and feces weight of Sumatran elephants (Elephas maximus sumatranus) in the Gunung Leuser National Park Tangkahan (GLNP) Resort, Langkat, North Sumatra. ... -
Studi Etnoprimatologi Kukang (Nycticebus Coucang) di Desa Kuta Male Kecamatan Kutambaru Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2025)The misuse of slow lorises, such as their use as mystical tools or as pets, is particularly prevalent in Kuta Male Village, Karo Regency, North Sumatra. Therefore, it is necessary to conduct research regarding the perspectives ... -
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 ... -
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 ...