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Arman Harahap
Universitas Labuhanbatu, Sumatera Utara, Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Transportation

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How Universities Entrust Digital Literacy to Improve Student Learning Outcomes During the COVID-19 Disruption Abd. Basir; Kamaliah Kamaliah; Arman Harahap; Ahmad Fauzi; Budi Karyanto
Jurnal Iqra' : Kajian Ilmu Pendidikan Vol. 6 No. 1 (2021): Jurnal Iqra' : Kajian Ilmu Pendidikan
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/ji.v6i1.1146

Abstract

Since the policy of sending students home to study as a result of responding to the dangers of the pandemic, universities around the world have increasingly trusted distance learning solutions. The solution was to rely on digital literacy to continue and improve student learning outcomes during the COVID-19 disruption. For this reason, the researchers have proven it through analytical efforts and in-depth studies in several international publications. In short, the researchers examined each piece of evidence with a phenomenological approach to get answers to research questions that are among other things, involve a data coding system, critical evaluation, and drawing of valid and reliable final results. The data discussion concludes that world universities believe that digital technology that was increasingly trending can become a learning innovation even though the world will continue to hit global education. Hence, the researchers hope that these findings should support other studies in the future. Keywords: Digital Literacy, Learning Outcomes, Entrust Digital Literacy
Diversity Of Makrozoobenthos As Bioindicators Of The Quality Of The River Aek Kanan Arman Harahap
International Journal of Science, Technology & Management Vol. 2 No. 3 (2021): May 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i3.741

Abstract

The waters of Kanan is the waters are very widespread in , this area is densely populated, so there are many community activities that take place such as Transportation, Fisheries, Bathing, sand Mining and other.The purpose of this study is to determine the role of macrozoobenthos as a bioindicator of water quality in the waters of Kanan Tapanuli Selatan , as well as determine the quality of water in the flow of the waters Kanan physical properties, chemical has. The research was conducted from November 2019 to February 2019, the samples taken from the three research stations. From the results obtained Macrozoobenthos in the identification in this study consisted of 3 Phyla of invertebrates namely : Annelids, which consists of 2 classes, Arthropods consisting of 1 class and Molusca, which consists of 1 class. Based on the data of macrozoobenthos obtained at each research station, then the obtained value of population density, relative density and frequency of presence of that at station I the value of its highest density is Tubifex sp. with the value of the density of the population of 18,519 individual/m2, the density is relatively 25,862% and the frequency of the presence of 55,555%. off at 3. at station 2 the highest density is Tubifex sp. with the value of the density of the population of 18,519 individuals/m2, relative density 25,862% and a frequency of 55,555%. also note that the total score obtained by the method storet, namely -30, this shows that if connected with the raw water quality of class I is then classified in the waters of class III, which means that light polluted. The high total score method storet on the entire research station due to the presence of a variety of activities at each of the stations, settlements, sand mining and other activities. Where these activities produce waste, which in the end increases the content of Phosfat, COD, TSS and BOD5, thus causing the waters of the Waters of Kanan is light polluted.
Monitoring of Macroinvertebrate Species In Sibolga Waters Arman Harahap
Jurnal Pro-Life Vol. 9 No. 3 (2022): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

Abstract

The waters of sibolga is the waters are very widespread in , this area is densely populated, so there are many community activities that take place such as Transportation, Fisheries, Bathing, sand Mining and other.The purpose of this study is to determine the role of Macroinvertebrate as a bioindicator of water quality in the waters of Sibolga Tapanuli Tengah, as well as determine the quality of water in the flow of the waters Sibolga physical properties, chemical has. The research was conducted from November 2021 to February 2022, the samples taken from the three research stations. From the results obtained Macroinvertebrate in the identification in this study consisted of 3 Phyla of invertebrates namely : Annelids, which consists of 2 classes, Arthropods consisting of 1 class and Molusca, which consists of 1 class. Based on the data of Macroinvertebrate obtained at each research station, then the obtained value of population density, relative density and frequency of presence of that at station I the value of its highest density is Tubifex sp. with the value of the density of the population of 18,519 individual/m2, the density is relatively 25,862% and the frequency of the presence of 55,555%. off at 3. at station 2 the highest density is Tubifex sp. with the value of the density of the population of 18,519 individuals/m2, relative density 25,862% and a frequency of 55,555%. also note that the total score obtained by the method storet, namely -30, this shows that if connected with the raw water quality of class I is then classified in the waters of class III, which means that light polluted. The high total score method storet on the entire research station due to the presence of a variety of activities at each of the stations, settlements, sand mining and other activities. Where these activities produce waste, which in the end increases the content of Phosfat, COD, TSS and BOD5, thus causing the waters of the Waters of Sibolga is light polluted.
Keanekaragaman Jenis Makrozoobenthos di Sungai Aek Buru Eli Suryani; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 1 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i1.5358

Abstract

This study aims to determine the physical and chemical factors that contribute to the diversity of macrozoobentos in the Aekburu River, NA XI-X District, and North Labuhan Batu Regency. A descriptive approach was used to study the diversity of macrozoobentos in the Aek Buru River, Batu Tunggal Village, NA IX-X District, North Labuhan Batu Regency, and North Sumatra. The results showed that macrozoobenthic species were found in the Aek Buru River, with 15 species of the phylum Mollusca, and the highest relative abundance value was in the species Nerita albicilla at Station 1, with a percentage of 7.447%. From this study, it can be concluded that the abundance of macrozoobentos, diversity index, uniformity index, and dominance index are the types of macrozoobentos found.
Analisis Keragaman Fitoplankton di Sungai Barumun Kecamatan Panai Tengah Kabupaten Labuhanbatu Sari Mawaddah Harahap; Arman Harahap
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i1.7015

Abstract

Research on the analysis of the diversity of phytoplankton has been carried out in the Barumun River, Panai Tengah District, Labuhanbatu Regency. The Barumun River is widely used by the surrounding community for various activities, for example: disposal of industrial waste, household waste, fish auctions, ports, and fishing. This activity resulted in the Barumun River being polluted with increasingly turbid water color. The purpose of this study was to determine the diversity of phytoplankton in the Barumun River. This type of research is a descriptive research with a quantitative approach. Sampling used Plankton Net mesh size 30 μm from 3 stations with 10 repetition, observed using a microscope, identified using the book "Marine and Fresh Plankton", counted, and analyzed the diversity index of plankton in the Zoology Laboratory, Biology Education Department, FKIP, University Labuhanbatu. Plankton abundance was calculated using the Lackey Drop micro-count method and Plankton diversity was calculated using the Shannon-Wiener formula. The results showed that the phytoplankton found were dominated by Diatoms and Dinoflagellates, with the highest average abundance being from the genus Cerratulina (1015 ind/L), and the lowest abundance value was from the Protoperidiun genus (5 ind/L). The diversity index is included in the moderate diversity category (1.48-1.90), and the dominance index is in the range of 0.24-0.28 with a low category.
Studi Kualitas Sungai Ditinjau dari Kelimpahan Fitoplankton Isnaini Fitria; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 1 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i1.5356

Abstract

The purpose of this investigation is to identify the kinds of phytoplankton that can be found in the Aek Buru River's waters and to gauge the quality of the river's water. Purposive sampling, a sampling approach that considers specific data sources, is the sampling methodology employed. At surface water depths of 0 to 1.5 meters, water samples were taken. According to the study's findings, there are 4 classes and 15 different types of phytoplankton in the diversity of species collected. The conclusion of this study is the diversity of phytoplankton obtained (Chlorophyceae, Bacillariophyceae, Cyanophyceae and Chrysophyceae). The quality of river water is classified as moderately polluted waters. Key words: Phytoplankton, Water Quality, Aek Buru River
Studi Keanekeragaman Mikroalga di Perairan Sungai Barumun Ria Resti Fauzi Pane; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 1 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i1.5442

Abstract

This study aims to determine the diversity of microalgae in the waters of the Barumun River as basic data. This study conducted a survey on the diversity of microalgae in the waters of the Barumun River which is located in Panai Hulu Regency, Labuhanbatu Regency, North Sumatra Province from October to December 2022. The method used is exploration. Determination of the sampling was carried out by systematic purposive sampling. Sampling was carried out through three points, namely the upstream, middle and downstream of the Barumun River. This study found 47 species of microalgae belonging to 42 genera and 27 orders, members of Chlorophyta and Bacillariophyceae as the most abundant microalgae. At point 1 found 36 species, while at point 2 found 30 species, and at point 3 as many as 22 species. The physicochemical factors of the Barumun River waters were also measured, the average water temperature was 27 RAM C, the average pH was 6.7, and the average water brightness was 57 cm. This study concluded that environmental factors greatly affect the diversity of microalgae in the Barumun River waters. Keywords: Diversity, Microalgae, Barumun River
Analisis Kualitas Air di Sungai Marbau Nur Hasanah Pohan; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 1 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i1.5360

Abstract

This study aims to analyze the quality of river water and the water quality status of the Marbau watershed in North Labuhanbatu Regency based on water quality criteria and to formulate a pollution control strategy that needs to be implemented. The method used is a quantitative descriptive method by analyzing the status of river water quality based on the pollution index. The results showed that the P1 value of Marbau river water ranged from 0.94 to 1.82. The recommended pollution control strategies are: 1) maintaining river protection zones involving environmental cadres and green communities in monitoring; 2) monitoring and controlling water pollution along the river; 3) improve river water quality monitoring; 5) supervision of the discharge of waste water into rivers; 4) granting permits for disposal of wastewater (IPLC) into rivers must pay attention to the condition of the capacity to accommodate river pollution loads and enforce environmental law against business actors who violate established environmental quality standards. In conclusion, the quality of the Marbau river has decreased with the water quality status being slightly polluted. The recommendations for water pollution control strategies that need to be implemented are progressive strategies. Keywords: Water Quality, North Labuhanbatu, Marbau
Studi Spesies Gastropoda di Perairan Sungai Berumun Nurlina Nurlina; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 1 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i1.5499

Abstract

The aim of the Gastropod species study is to determine the diversity and density of Gastropods and the environmental conditions that influence the development of gastropods in berumun rivers. The research method used in this study of gastropod species is to provide descriptive information about the diversity of gastropod species in the Berumun river, Panai Hulu sub-district, Labuhan Batu district. The results of temperature measurements at the observation station in Sungai Berumun, Panai Hulu District, Labuhan Batu Regency, showed that the highest pH was at the third station, 7.40, while the lowest pH was at the first station, namely 7.1. From the results of the study, it was concluded that there are 15 species of macrozoobenthos found in the Barumun River which belong to 5 families, namely: 1. Potamididae, Cerithidae obtusa, Cerithidae alata, Cerithidae cingulata, Telescopium mauritsi, Telescopium telescopium, 2. Littorinidae, Littoraria melanostoma, Littoraria conica, Littoraria scabra, 3. Neritidae, Nerita balteata, Neritina violacea, Neritina cornucopia, 4. Muricidae, Stramonita gradata, Chicoreus capucinus, 5. Ellobiidae, Cassidula aurisfelis, Ellobium aurisjudae. Keywords: Gastropods, Diversity
Pencemaran dari Segi Logam di Sungai Lidia Rahayu; Arman Harahap
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 2 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i2.5359

Abstract

This research aims to determine metal pollution in the Marbau river basin in North Labuhanbatu Regency. Sampling was carried out at 3 monitoring points in the upstream to downstream areas of the Marbau River in North Labuhanbatu Regency. Determination of sample return points. The method used is purposive sampling, by determining sampling points based on the differences in characteristics found in the research area. Some of the parameters measured are temperature, conductivity, turbidity, total dissolved density, BOD, COD, DO, pH, nitrate and chlorophyll which are then compared with the Standard Criteria for Class III river water quality according to the attachment to the reference regulation PerMenKes No.32 of 2017. The research results show that the upstream to downstream areas of the Marbau River are areas that can be categorized as low level pollution referring to PP RI NO 82 TAHUN 2001 with the specified quality standard for the heavy metal lead being 0.003 ppm. The conclusion of the analysis of the heavy metal lead (PB) from upstream to downstream of the Marbau River shows that the heavy metal lead (PB) pollution in the river is still relatively low or has not been contaminated by the heavy metal lead (PB). Keywords: Labuhanbatu, Marbau, Water Pollution
Co-Authors Abd. Basir Abd. Basir Abdul Wahab Syakhrani Ahmad Fauzi Akhmad Halim Ilmanto Amin Harahap Astuti Yuni Nursasi Aziddin Harahap Cengiz Kayacilar Dana Briggs Daru Asih Desi Nursaini Eli Suryani Elly Nurachmah Eni Fariyatul Fahyuni Fahrur Rozy Siregar Gunawan Widjaja Hasmi Syahputra Harahap Intan Bayati Nasution Isnaini Fitria Jendri Mamangkey Juliana Nasution Kamaliah Kamaliah Karyanto, Budi Khairul Khairul Kiki Maini Hasibuan Leli Febriani Lidia Rahayu Lina Rosanti Lucas William Mendes Mahadewi, Erlina Puspitaloka Ngadino Surip Nur Hasanah Pohan Nurhasanah Ritonga Nurlina Ariani Hrp Nurlina Nurlina Nurma Ani Rani Lasari Ria Resti Fauzi Pane Rivo H. Dimenta Roma Tao Toba MR Rusdi Machrizal Sari Mawaddah Harahap Sintia Ananta Sri Kedaton Sutawidjaya, Ahmad Hidayat Tris Eryando WINARTI WINARTI Wirawan, Vani Yatini, Yatini