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Applied Research in Science and Technology
Published by Research and Social Study Institute
ISSN : 27767213     EISSN : 27767205     DOI : -
Core Subject : Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Environmental Science
Applied Research in Science and Technology is a peer-reviewed open-access journal which publishes result from scientists and engineers in many fields of science and technology. Every submitted manuscript will be reviewed by at least two peer-reviewers using the double-blind review method. focus and scope: Infrastructures Technology, Remote Sensing and Geospatial Information System, Soil Science, Geology, Marine Science, Technology and Engineering, Electrical, Biomedical Engineering, Renewable Energy, Physics, Chemistry, Materials, Biology, Forestry, Agriculture, Earth & Space Science.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol. 1 No. 2 (2021): Applied Research in Science and Technology" : 5 Documents clear
Preliminary Study on Antioxidant and Antibacterial Activity of Kaffir Lime (Citrus hystrix DC) Leaf Essential Oil
Applied Research in Science and Technology Vol. 1 No. 2 (2021): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v1i2.8

Abstract

This preliminary study aimed to examine the antioxidant and antibacterial activity of kaffir lime leaf essential oils (KLLEOs) in response to different growing locations and post-harvest handling. This study tested 9 samples, i.e., 8 KLLEOs with variation in growth location and post-harvest handling, and 1 standard citronellal solution. Thin layer chromatography was used to test the antioxidant and antibacterial activity of samples. Eluent in a mixture of hexane: ethyl acetate (5: 1) was chosen because it could provide a clear separation effect under visible light and after being sprayed with vanillin sulfate. KLLEOs originated from brown and green leaf powder had a stronger antioxidant activity than other samples. The sensitivity of KLLEOs to E. coli was lower than S. aereus, as indicated by fewer stains observed in E. coli glass plates rather than S. aereus ones. Standard citronellal compound at a concentration of 5 l ml-1 showed no antioxidant activity and at a concentration of 10 l ml-1 showed no antibacterial activity against both E. coli and S. aereus.
Medical Waste Generation of Community Health Centers (PUSKESMAS) In Magelang Regency, Indonesia
Applied Research in Science and Technology Vol. 1 No. 2 (2021): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v1i2.9

Abstract

The majority of Magelang Regency’s society is registered as participants and actively uses the Indonesian National Health Insurance (JKN). This makes the active role of Community Health Centers as first level service that takes care of health problems. This has an impact on the amount of hazardous waste by the Community Health Centers activities and how to manage it. The study was carried out to identify and calculate hazardous waste generation in Community Health Centers. The study was conducted using a purposive sampling method by examining the Community Health Centers services (e.g., hospitalization and out-patient care) and analyzing medical waste generation based on SNI 19-3964-1994 standard. The study results indicate that the type of Community Health Centers has an impact on the daily generation and composition of hazardous waste. The composition of non-sharp infectious waste produced was as much as 82%, and that sharp infectious waste was 18% average from hospitalization and out-patient care. The potential for waste generated from Community Health Centers in Magelang Regency is as much as 33.66 kg per day. This needs to be reconciled with the increasing knowledge of health workers and sanitarians in handling this. The generation and composition of hazardous waste in Community Health Centers are influenced by several factors, including the type of Community Health Centers service, the number of patients and treatments provided, and the extent of laboratory services.
Assessment of the Effectiveness Biophysical Soil and Water Conservation Structures: A Case Study of Kiramuworeda, East Wollega Zone, Ethiopia
Applied Research in Science and Technology Vol. 1 No. 2 (2021): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v1i2.11

Abstract

Soil erosion is one of the most serious global environmental issues affecting agriculture and soil fertility. On a global scale, water erosion is the most common type of soil erosion in agricultural areas, reducing the soil's ability to support productive agriculture. The efficiency of biophysical soil and water conservation systems must be evaluated before solutions for limiting soil losses may be considered. To promote sustainable land use in the study area, it is critical to understand farmers' knowledge of soil and water conservation structures, as well as the factors that influence their land management practices. Farmers in the study region are well-informed about soil and water conservation structures in general, as well as their causes, indications, and the amount of their plot of land that is susceptible to soil erosion in particular. Furthermore, they feature both traditional and modern soil conservation structures that are successful. However, several impediments to implementing the Soil and Water Conservation structures were found, including a lack of finance, the small area of their land, and other socio-economic and physical aspects. Furthermore, farmers had a highly positive attitude regarding the importance of contemporary Soil and Water Conservation structures. Their awareness, on the other hand, appears to be incorrect. Because they believe that the present SWC Structure is a government-led initiative to rehabilitate highly degraded areas rather than a mechanism of soil and water conservation on agricultural land. They believe that the structures take up a huge portion of a relatively small plot of land, preventing them from properly utilizing it. As a result, it is suggested that the government's policies and strategies, as well as corrective intervention from non-governmental organizations aimed at this issue and community participation in encouraging farmers to participate in soil and water conservation practices, are critical to resolving current poverty, food insecurity, and environmental degradation in the study area.
Human-Wildlife Conflict: The Case of Arjo Dhidhessa Sugar Factory and Its Surrounding, Western Ethiopia
Applied Research in Science and Technology Vol. 1 No. 2 (2021): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v1i2.12

Abstract

Human-wildlife conflict (HWC) occurs in various forms throughout the world, with a greater influence in developing countries. This is due to fast increasing human populations and increased subsistence agriculture, which reduces wildlife habitat and increases human-wildlife interactions. Wild animals fight for resources with humans in the Arjo Dhidhesa Sugar Factory in Western Ethiopia, and they are in conflict with each other. As a result, this research was carried out to determine the reasons of HWC, as well as the mammals responsible for them. From August 2017 to March 2018, researchers utilized questioner and interview approaches to examine community perceptions toward wildlife and overall cthe result showed that a total of 99.034 sugarcane stalk damage events were registered in all three sample sites both during the dry and wet seasons. Wildlife consumed 46,468 sugarcane stalks during the rainy season, while 52,566 stalks were consumed during the dry season, with the documented damage event varying greatly from site to site. Hippopotamus, Anubis baboon, Warthog, Bush pig, and Buffalo were the most affected by HWC, with agricultural loss occurring throughout both wet and dry seasons. During the wet season, Hippopotamus 16,133 stalks per ha were the most damaged, followed by Anubis baboon 12,484 stalks per ha. Buffalo 5,083 and Bush pig 3,931 stalk per ha did the least damage, placing fourth and fifth, respectively. During dry seasons, Anubis baboon caused the most sugarcane stalk damage (16, 898 stalks per hectare), followed by hippopotamus (16,533 stalks per ha). During both the wet (t = 4.08, DF = 4, P< 0.05) and dry seasons (t =3.73, DF = 4, P< 0.05), there was a significant difference in the damages caused by mentioned fauna. According to the findings, about 67.9% and 25.2 % of all respondents said that HWC expressed itself in crop destruction and livestock predation, respectively. Habitat damage, agricultural development, a lack of feed, and a rise in the population of wild animals are among the explanations cited by respondents. Some of the key crop raider mitigation strategies revealed in this study that were adopted by the investment community and local communities include hanging dead animal parts, habitat disturbance, keeping animals alive by tying them to the side of field, and mass murdering wildlife. These practices are one of the main causes of the extinction of wildlife, making conservation even more challenging. There are currently many human activities in the field of science, which has resulted in many HWCs. As a result, investment decisions should be made based on strong and viable domain choices both commercial and environmental, as well as promoting natural tourism as a viable option for education and conservation education.
Chemical Properties of Biochar from Date Palm Seed (Phoenix dactylifera L.) under Low Temperature Pyrolysis as Soil Amendment Candidate
Applied Research in Science and Technology Vol. 1 No. 2 (2021): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v1i2.13

Abstract

The waste of date palm seeds is abundant in Indonesia, however, the seeds are still regarded as trash from the manufacture of date palm-based products. Dates seed, when processed further, can be a useful resource, one of which is as a raw material in the production of Biochar. The utilization of date palm seeds into biochar is one strategy that can be applied. The purpose of this study was to determine the chemical properties of biochar derived from the seeds of palm date (Phoenix dactylifera L.). Making biochar is done by burning the seeds using a furnace with a temperature of 250°C and 350°C, then ground and sieved with a size of 350 micrometers carried out at the Research Center for Limnology and Water Resources. Chemical property analysis using X-Ray Fluorescence Spectrometer (XRF) at the Lampung Advanced Characterization Laboratory- BRIN. The results show there are four macronutrients found in date palm seed biochar namely P, K, Ca, and S. Most composition is Potassium (K). The potassium content of biochar burned at 250 °C is 66.24% while the biochar burned at 350 °C contains 67.189%. In addition, the phosphorus (P) content of biochar burned at a temperature of 250 °C is 6.574% while the biochar burned at a temperature of 350 °C contains 7.429%. Increasing the temperature increases the percentage of Potassium and Phosphorus, but the opposite results in Sulfur (S) and Calcium (Ca).

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