Department of Biology: Recent submissions
Now showing items 521-540 of 1255
-
Perilaku Harian Anak Orangutan Sumatera (Pongo Abelii) Akibat Adanya Aktivitas Manusia di Pusat Pengamatan Orangutan Sumatera, Bukit Lawang, Taman Nasional Gunung Leuser
(Universitas Sumatera Utara, 2010)Research with the title "Son of Daily Behavior Sumatran Orangutan (Pongo abelii) Due to Human Activities in the presence of Observation Centre for Orangutan Sumatra, Bukit Lawang, Gunung Leuser National Park", carried ... -
Pengaruh Ekstrak Air Biji Pepaya (Carica papaya L.) dan Testosteron Undekanoat (TU) terhadap Jaringan Ginjal Mencit (Mus musculus L.)
(Universitas Sumatera Utara, 2012)Kidney excretion is the main organ, which is often damaged if exposed to toxic substances. The purpose of this study is to determine the influence or histologic changes in kidney of mice after administration of water ... -
Aktivitas Enzim Peroksidase dan Polifenol Oksidase pada Kalus Terung Belanda (Solanum Betaceum Cav.) Setelah Diinduksi Kolkisin
(Universitas Sumatera Utara, 2009)The study on “Peroxidase and Polyphenol Oxidase of Tamarillo (Solanum betaceum Cav.) Calli Induction by Colchisine has been done on April to August 2009 in Tissue Culture Laboratory, Biology Departement of North Sumatera, ... -
Perilaku Sosial Induk-Anak Orangutan (Pongo Abelii) di Pusat Pengamatan Orangutan Sumatera, Bukit Lawang, Taman Nasional Gunung Leuser
(Universitas Sumatera Utara, 2010)Research on the Social Behavior of Parent-Child Orangutan (Pongo abelii) at the Orangutan Sumatra Viewing Center, Bukit Lawang, Gunung Leuser National Park has been carried out from September 2009 until February 2010. ... -
Keanekaragaman Burung di Desa Telagah Taman Nasional Gunung Leuser Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2015)The study of bird diversity in Telagah Village Gunung Leuser National Park Kabupaten Langkat Sumatera Utara has been conducted from February until march 2015. This research aimed to know diversity of bird in this area. ... -
Kultur Jaringan Daun Andaliman (Zanthoxylum Acanthopodium Dc.) dengan Perlakuan Ems (Ethyl Methana Sulphonate)
(Universitas Sumatera Utara, 2009)The study on ” The Leaf Tissue Culture of andaliman (Zanthoxylum acanthopodium DC.) with induction of EMS (Ethyl Methana Sulphonate)” has been done in Plant Tissue Culture Laboratory of Biologi Department at Faculty ... -
Pengaruh Pemberian Jus Buah Delima (Punica granatum L.) terhadap Kualitas Sperma Mencit yang Telah Diinduksi Ekstrak Daun Tembakau
(Universitas Sumatera Utara, 2015)Tobacco leaf extract led to a decline in sperm quality. Decline in sperm quality can be restored by administration of Pomegranate Juice. The study used male mice (Mus musculus L.) grown in fertile age ± 2 months. Mice ... -
Aktivitas Enzim Peroksidase dan Polifenol Oksidase pada Kalus Terung Belanda (Solanum Betaceum Cav.) Setelah Diinduksi Ems (Ethyl Methane Sulphonate)
(Universitas Sumatera Utara, 2009)“The activities of Peroxidase and Pholyphenol Oxidase in The Tamarillo (Solanum betaceum Cav.) Calli with EMS (Ethyl Methane Sulphonate) Induction”, has been done in Plant Tissue Culture Laboratory of Biology Department at ... -
Pengaruh Penambahan Atonik dan Bap (Benzil Amino Purin) pada Media ½ Ms terhadap Kultur Primordial Daun Andaliman (Zanthoxylum Acanthopodium Dc.)
(Universitas Sumatera Utara, 2012)The research of ”The Effect Atonic and BAP (benzil amino purin) Combination in ½ MS Media on The Growth of The Leaf Primordial Tissue Culture of Andaliman (Zanthoxylum acanthopodium DC.)” has been done in Plant Tissue Culture ... -
Isolasi dan Uji Potensi Bakteri Penghasil Biosurfaktan Asal Laut Belawan Sumatera Utara dalam Mendegradasi Naftalen
(Universitas Sumatera Utara, 2010)The research on biosurfactant producing bacteria isolated from Belawan North Sumatera has been done in Microbiology Laboratory, Faculty of Mathematics and Natural Sciences University of North Sumatera from January to ... -
Studi Tentang Keanekaragaman dan Distribusi Serangga Air di Danau Lau Kawar Kecamatan Simpang Empat, Kabupaten Karo
(Universitas Sumatera Utara, 2009)Penelitian tentang ‘Keanekaragaman dan Distribusi Serangga Air di Danau Lau Kawar Kecamatan Simpang Empat, Kabupaten Karo’ dilakukan dua musim yaitu musim kemarau pada bulan Juni 2008 dan musim hujan pada bulan November ... -
Studi Komparasi Kelimpahan Fitoplankton dan Laju Produktivitas Primer di Perairan Haranggaol Danau Toba
(Universitas Sumatera Utara, 2015)Research on the comparative abundance of phytoplankton and primary productivity rate in the waters of Lake Toba Haranggaol was conducted in December 2014 and March 2015. The purpose of this study was to compare the value ... -
Pola Makan Induk Orangutan (Pongo Abelii) di Pusat Pengamatan Orangutan Sumatera, Desa Bukit Lawang, Taman Nasional Gunung Leuser, Sumatera Utara
(Universitas Sumatera Utara, 2009)The research of “Mother Orangutan (Pongo abelii) Feeding Pattern at Monitoring Center of Sumateran Orangutan, Bukit Lawang Village, Gunung Leuser National Park, Sumatera Utara” were done for 3 months by using the method ... -
Uji Potensi Bakteri Kitinolitik dalam Menghambat Pertumbuhan Rhizoctonia Solani Penyebab Rebah Kecambah pada Kentang Varietas Granola
(Universitas Sumatera Utara, 2013)A study on assay of potential of chitinolytic bacterial isolates to inhibit the growth of Rhizoctonia solanicausal agent of damping-off on potato plants has been conducted in Laboratory of Observation Pest and Disease, ... -
Studi Keanekaragaman Makrozoobenthos di Danau Lut Tawar Kecamatan Lut Tawar Kota Takengon Kabupaten Aceh Tengah
(Universitas Sumatera Utara, 2010)Research about “Study Of Diversity Makrozoobenthic in Lut Tawar Lake, Lut Tawar District, Takengon City Aceh Tengah Sub Province” was investigated on November 2009 - March 2010. The aimed of this research were to investigate ... -
Studi Taksonomi Zingiberaceae di Kawasan Sikundur Taman Nasional Gunung Leuser Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2012)“Taxonomic Study of Zingiberaceae in Sikundur Area Leuser National Park Langkat Regency of North Sumatera” was studied from March to July 2011 using “Survey Method”. There are ten (10) genera and 18 species of Zingiberaceae ... -
Pemanfaatan Bakteri Kitinolitik dalam Menghambat Pertumbuhan Curvularia sp. Penyebab Penyakit Bercak Daun pada Tanaman Mentimun
(Universitas Sumatera Utara, 2013)A study about the utilization of chitinolytic bacteria isolates to inhibit growth of Curvularia sp. that cause leaf spot disease of cucumber has been done in Laboratoryof observation pest and disease, Medan Johor, ... -
Keanekaragaman Makrozoobentos di Perairan Sungai Asahan Sumatera Utara
(Universitas Sumatera Utara, 2014)Research about “The Diversity of Macrozoobenthos in Asahan River North Sumatera” was implemented on May 2013. Using Purposive Random Sampling method to determine 5 research stasions with different activities. The aimed ... -
Studi Taksonomi Rotan di Kawasan Sikundur Taman Nasional Gunung Leuser Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2012)The Taxonomic Study of Rattan In Sikundur Area Leuser National Park of North Sumatera using Survey Methods has been studied from May to Agustust 2011. There are 27 species of rattan found in the study area belonging ... -
Jenis-Jenis Lumut Daun (Musci) di Kawasan Hutan Taman Nasional Gunung Leuser Desa Telagah Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2012)Species of Musci in Gunung Leuser National Park Telagah Village Langkat Regency North Sumatra had been studied using Survey Methods from May to November 2011. There are 50 species of Musci recorded in the study area ...