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Ali Rahmat
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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 4 Documents
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Search results for , issue "Vol. 4 No. 1 (2024): Applied Research in Science and Technology" : 4 Documents clear
Identification of Mineral Absorption in the Meat of Freshwater Kijing (Pilsbryoconcha exilis Lea) Using X-Ray Fluorescence (XRF) Sartika, Sartika; Adam, Moh. Awaudin; Ariyanti, Dwi
Applied Research in Science and Technology Vol. 4 No. 1 (2024): 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.v4i1.48

Abstract

The filtration ability of freshwater mussels is used as an indicator of biofiltration and has the potential to accumulate various minerals and heavy metals. This study aims to identify minerals resulting from absorption in the meat of freshwater kijing (Pilsbryoconcha exilis Lea) using the X-Ray Fluorescence (XRF) technique. Meat freshwater kijing sliced thinly and carried out the drying process below ray sun direct in 3 days with objective lower water content. Samples already dry smoothed with method pounded using mortar until smooth and filtered for get sample form flour meat tombstone. Method of quantitative identification of absorbed minerals in samples was carried out using the X-Ray Fluorescence method (ED-XRF type) Rigaku NexCG type. The XRF testing procedure is carried out in several steps. The results of the research show that qualitatively, in the XRF test, freshwater kijing meat contains 29 metal elements with the top 10 elements consisting of calcium oxide (CaO), calcium (Ca), phosphorus pentoxide (P2O5), phosphorus (P), manganese oxide. (MnO), sulfur trioxide (SO3), manganese (Mn), silicon dioxide (SiO2), aluminum oxide (AlO), magnesium oxide (MgO). Meanwhile, quantitative analysis shows that the five most abundant metal elements are CaO 48.70%, Ca 34.80%, P2O5 30.90%, P 13.50%, and MnO 4.9%. These results show that the main mineral compiler meat freshwater kijing is calcium and phosphorus. Element calcium and phosphorus lots utilized freshwater kijing for preparation shell.
Time and Workload Analysis to Determine Total Labor in the Arabica Coffee Harvesting Process Fil'aini, Raizummi; Juanto, Benedictus; Attamimi, Tahani Farhat; Valentino, Fandy; Telaumbanua, Mareli; Sari, Tri Novita; Mufidah, Zunanik
Applied Research in Science and Technology Vol. 4 No. 1 (2024): 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.v4i1.50

Abstract

Farmers verify ripe coffee cherries, pick them individually, and place them in the harvest basket in the coffee harvesting process. This task typically takes 7-8 hours. During harvesting, farmers experience a physical workload that impacts their work capacity. This research aims to measure the qualitative and quantitative workload levels of the coffee harvesting process, determine the working time based on the farmers' Human Output Capacity, and calculate the total number of daily workers needed to achieve daily coffee production targets. The determination of the number of daily workers is based on the work capacity of the farmers. Farmers were categorized into two age groups: productive age (30-40 years) and non-productive age (50-60 years). Data observed included heart rate during harvest, heart rate calibration data, subjects' body characteristics, and coffee productivity. The results showed that the heaviest workload, related to verifying ripe cherries, fell into the medium category, with an energy consumption level of 3,370 Kcal per minute. The optimal working time for the coffee harvesting process is 6 hours for workers of productive age and 4 hours for workers of non-productive age. To meet production targets, 9 workers of productive age and 10 workers of non-productive age are required.
The Effect of Giving “Semundu” Juice with a Combination of Probiotics on Blood Pressure in Pre-Hypertension Patients Septia, Reka; Maigoda, Tonny C; Krisnasary, Arie; Hariadi, Hari
Applied Research in Science and Technology Vol. 4 No. 1 (2024): 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.v4i1.51

Abstract

Hypertension is a medical condition characterized by elevated blood pressure beyond normal limits. Management strategies for hypertension can be pharmacological or non-pharmacological. This study aims to evaluate the effect of administering "semundu" juice combined with yogurt on reducing blood pressure in individuals with hypertension in the Jembatan Kecil Health Center area, Bengkulu City, in 2024. A total of 28 participants with high blood pressure were randomly assigned to one of four groups: P0 (control group receiving educational leaflets), P1 (200g watermelon juice, 100g cucumber, and 20ml honey), P2 (100g Ambon banana, yogurt), and P3 (200g watermelon juice, 100g cucumber, 20ml honey, and yogurt). The Kruskal-Wallis test results indicated that the administration of "semundu" juice combined with probiotics significantly affected both systolic and diastolic blood pressure, as evidenced by a p-value of less than 0.05. All treatment groups demonstrated a reduction in blood pressure, with significant differences observed between the groups: P0 vs. P3 (p-value < 0.02), P1 vs. P3 (p-value < 0.034), and P2 vs. P3 (p-value < 0.01). These findings suggest that "semundu" juice combined with probiotics has a notable impact on lowering blood pressure in individuals with hypertension.
Evaluation of Waste Management in XYZ University Area in Yogyakarta Hidayat, Salsabila; Yuriandala, Yebi
Applied Research in Science and Technology Vol. 4 No. 1 (2024): 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.v4i1.53

Abstract

The increasing volume of waste is driven by several factors, including population growth, urbanization, and changes in lifestyle. This rise in waste generation has outpaced the capacity of available landfill space, leading to the improper accumulation of unmanaged waste. This study aims to evaluate the current waste management practices, analyze the waste generation and composition, and propose an effective waste management scenario. A quantitative descriptive analysis approach was employed, utilizing waste generation and composition data measured in accordance with the Indonesian National Standard (SNI) 19-3964-1994. The proposed waste management scenario is aligned with the guidelines outlined in Sleman Regency Regulation No. 4 of 2015. The operational techniques for managing waste include stages such as storage, collection, transportation, and treatment, which are outsourced to a third party. The findings of this study indicate that the waste at eight sampling points averaged 359,250 kg/day and 4,058 m³/day. The waste composition is predominantly organic (2.48%), paper and cardboard (12.4%), and other types of waste (11.07%). The proposed processing methods focus on utilizing technologies for organic waste and residue treatment, such as Masaro technology.

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