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ISSN 2356-458X · Universitas Medan Area · 190 articles in the index
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Journal Article
ANALYSIS OF FORMULATION MEDIA FOR PLANTING OYSTER MUSHROOM (Pleurotus ostreatus)AGRICULTURAL WASTE BASED MATERIALS
The effort of Indonesian people to fulfill their protein intake in an economically accessible way is by producing and consuming oyster mushrooms, because their protein content was viable as an alternative to animal-based products. Combination of sugarcane bagasse, palm fronds (PKS), and sawdust can…
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Journal Article
CHARACTERISTICS OF MACROSCOPIC FUNGI IN PULAU MAS POPAYA RAJA NATURAL RESERVE OF GORONTALO UTARA
The study aims at identifying the properties and number of macroscopic fungi species from the Ascomycetes and Basidiomycetes divisions within the Mas Popaya Raja Natural Reserve Island of Dunu Village, Monano Sub-district of Gorontalo Utara. Information on the results of this research can be used…
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Journal Article
THE EFFECT OF THE CONSTRUCTED WETLAND SUBSURFACE MODEL USING TWO SPECIES OF Epipremnum aureum AND Canna indica IN REDUCE COD IN LAUNDRY WASTE
Pollution of aquatic ecosystems is mostly caused by human activities such as the laundry industry in urban areas, where often the disposal of laundry waste that is discharged directly without proper management triggers environmental pollution. There are two compounds in laundry waste that are…
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Journal Article
SOIL QUALITY IN ORGANIC AGRICULTURAL LAND: STUDY OF CHEMICAL ANALYSIS AND SOIL MICROBIOLOGY
Increased public awareness for a healthy diet must be balanced with successful cultivation. Organic farming system is the right choice since it leaves all non-organic components. This study aims to identify the chemical and microbiological properties of agricultural soils that apply organic systems…
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Journal Article
THE INFLUENCE OF ECOENZYME ON METHANE (CH4) LEVELS IN LANDFILL WASTE
The effect of Ecoenzyme and waste thickness on methane gas levels contained in waste. Utilization of Ecoenzyme in reducing pollutant power in the environment. Obstacles in waste processing and the consequences of excess landfill can damage the earth's layer, becoming a global warming event. The…
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Journal Article
BIBLIOMETRIC ANALYSIS OF CHICKEN BONE PROCESSING AS ANTI-AGING ON SKIN THROUGH VOSVIEWER APPLICATION
This study aims to determine the number of scientific publications on chicken bone processing as an anti-aging agent using bibliometric analysis, which can determine the researched areas to provide an overview of the latest research developments, trends, and future projections related to chicken…
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Journal Article
12 TEXTILE DYES DECOLORIZATION BY COPPER-RESISTANT-BACTERIA KLEBSIELLA GRIMONTII, SHIGELLA FLEXNERI, ENTEROBACTER CLOACAE ISOLATED FROM CISADANE RIVER TANGERANG
Dyes and copper are dangerous contaminants because they are toxic. Bioremediation using indigenous bacteria is the best solution to overcome water pollution. Copper resistant bacteria usually have resistance to dyes thereby helping the bioremediation of dye and copper wastes. This study aims to…
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Journal Article
INVENTORY OF SPECIES AND HEALTH LEVEL OF SHADE TREES IN PROTOCOL ROAD, PANGKALPINANG CITY
Shade trees have enormous benefits for the urban environment, both ecologically and economically. The level of tree health is important as an ingredient in determining management decisions that will be carried out so that the sustainability of road shade trees remains consistent and maintained…
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Journal Article
THE INFLUENCE OF LIQUID ORGANIC FERTILIZER FROM COW MANURE ON THE GROWTH AND PRODUCTION OF LETTUCE (Lactuca sativa L.) Var Kriebo
growth and production of lettuce plants. The study was conducted in an open field in Sampun Village, Dolat Rayat District, Karo Regency, North Sumatra Province. The research design was an experimental design a Non-Factorial Randomized Block Design with 4 treatments and 6 replications, making a…
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Journal Article
TESTS OF pH, CONDUCTIVITY, TOTAL DISSOLVED SOLIDS, SALINITY AND TURBIDITY IN THE BATANG ARAU RIVER SURROUNDING, PADANG CITY-WEST SUMATRA
Humans need fresh water for many functions, including cleaning, irrigating plants, drinking, cooking, industrial uses, and more. It cannot be denied that the excessive exploitation of the environment by humans is the cause of the current decline in water quality. This study aims to test water…
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Journal Article
EFFECTIVENESS OF MULTI-SPECIES PLANTS (Canna indica and Echinodorus palaefolius) TO REDUCE ORGANIC MATTER AND PHOSPHATE (PO4) IN DOMESTIC WASTE
Domestic waste is the residue of household activities, one of which can be sourced from the campus. Domestic waste discharged into water bodies such as rivers can potentially increase the concentration of nutrients and pathogens in the water, so there is a need for an easy and affordable sewage…
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Journal Article
AN IDENTIFICATION OF ANGIOSPERMS IN KEMBANG NATURE RESERVE, JEPARA REGENCY
Based on the diversity of angiosperms which are widespread throughout the world and play an important role, identification is necessary, especially in flora reserves. This study aims to determine the type of angiosperms in the Kembang Nature Reserve, Jingotan Village, Kembang District, Jepara…
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Journal Article
THE PRESENCE OF PLUMBUM (Pb) AND CADMIUM (Cd) HEAVY METALS OF BROILER CHICKEN
The level of meat production from purebred chickens in East Java Province from 2009 to 2019 reached 510,535.29 tons. The existence of heavy metal contamination in chickens are dangerous for human health due to the lack of good facilities and infrastructure on broiler farms including land and…
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Journal Article
EFFECTIVENESS OF PURSULA (Portulaca oleracea) FATTY ACID EXTRACTS IN REDUCE THE TRIGLYCERIDES OF OBESITY RATS
Hyperlipidemia is a condition of high levels of lipids in the blood. Hyperlipidemia is a major factor causing non-communicable diseases such as DMT2 and stroke. Purslane is a plant that contains PUFA which is hypolipidemic. The purpose of this study was to test the effectiveness of giving purslane…
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Journal Article
ANALYSIS OF NEW PRIMER PAIR CANDIDATES OF rbcL GENE FOR IDENTIFICATION OF MICROALGAE SCENEDESMACEAE
Scenedesmaceae is one of the microalgae groups that has been widely studied as promising biodiesel feedstock. Its morphological identification is often confused by environmental changes, so it requires molecular identification as well. The current study aimed to obtain primer pair candidates that…
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Journal Article
CARBON STORAGE IN SEAGRASS BEDS IN THE LITORAL ZONE OF SANCANG BEACH, GARUT
The vast expanse of seagrass beds in coastal areas can provide many ecosystem services, one of which is the ability of seagrass beds to absorb and store carbon dioxide (CO2). Carbon dioxide gas (CO2) is one of the components of greenhouse gases that contribute to global warming. So the role of…
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Journal Article
EFFECT OF Cosmos caudatus LEAVES EXTRACT ON MORTALITY OF THE BLACK CUTWORM PESTS (Agrotis ipsilon)
Cosmos caudatus (Asteraceae) is one of Indonesia biodiversity which is usually used as a refugia plant on several crop fields. In Indonesia, this plant is widely consumed as salad and herbal medicine as well. The aimed of this study is to see the effect of C. caudatus leaves extract on mortality of…
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Journal Article
INTERACTION OF CO2 AND LIGHT AVAILABILITY ON PHOTOPHYSIOLOGY OF TROPICAL COCCOLITOPHORIDS (EMILIANIA HUXLEYI, GEPHYROCAPSA OCEANICA, AND OCHOSPHAERA SP.)
The study to examine the calcification rate, adaptation, and the biotic response of three tropical coccolithophorids (Emiliania huxleyi, Gephyrocapsa oceanica, and Ochosphaera sp) to changes in CO2 concentration. Three selected calcifying coccolitophorids were grown at batch culture with CO2 system…
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Journal Article
THE EFFECT OF WEED MANAGEMENT USING HERBICIDE ON CORN RESULTS (Zea mays L)
Weeds are undesired plants to grow so weed management is expected to overcome losses caused by weeds. One way to manage weeds using herbicides is the chemicals used for weed management in plants. This study aims to determine the influence of weed management using herbicides on corn yields. The…
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Journal Article
UTILIZATION OF EUCALYPTUS GRANDIS LEAF WASTE IN THE PRODUCTION OF VCO BASED LIQUID SOAP
Eucalyptus grandis still not much used, especially the leaves. Besides being used as an industrial material, Eucalyptus is also used as a medicinal plant to cure infectious diseases, fever and rheumatism as well as being an antiseptic and can be applied in the form of bath soap. The purpose of this…