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Academia Open
Published by Universitas Muhammadiyah Sidoarjo
ISSN : -     EISSN : 27147444     DOI : 10.21070/acopen.11.2026.12985
Core Subject : Health,
Medicine & Pharmacology Public Health
Academia Open is published by Universitas Muhammadiyah Sidoarjo published 2 (two) issues per year (June and December). This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. This journal aims is to provide a place for academics and practitioners to publish original research and review articles. The articles basically contains any topics research or review. Academia Open is available in online version. Language used in this journal is Indonesia or English.
Arjuna Subject : Profesi Kesehatan - Profesi Kesehatan (Lain-Lain)
Articles 2,389 Documents
 127   128   129   130   131 
Effect of Spraying the Vigna Radiata L.Plant, with Salicylic Acid and Boron on Yield and Protein Percentage: Pengaruh Penyemprotan Tanaman Vigna Radiata L. dengan Asam Salisilat dan Boron terhadap Hasil dan Persentase Protein Ayyub J. Al-Bayaty; Noas Ahmed Hatem
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10500

Abstract

This study was conducted for the period from 1 Nomber 1to 15 April for the 2023 season to determine the effect of Salicylic acid and Boron on Vigna radiata plant yield and protein percentage. Concentrations of (0, 50,75 and 100,).and boron with (0, 25 and 50) mg L-1distile water were used sprayed on plants grown in plastic pots using the CRD design. The results showed: The treatment spraying with salicylic acid by 100 and boron by 50mg L-1 concentration mg.L-1 distilled water gaved The highest values for yield triats (number of pods.plant-1, number of seeds.pod-1, weight of 100 seeds.g, seed yield Plant -1 gm , harvest index and protein percentage) reached (9.0, 7.44, 10.99, 29.40 , 62.99 and), while the lowest values were in the Control treatment (without spraying with salysic acid boron) and were (3.99, 4.99, 10.0, 23.99 , 51and 32) respectively. Highlights: Study salicylic acid and boron effects on Vigna radiata yield. 100mg salicylic acid + 50mg boron maximized yield traits. Treatment improved pods, seeds, protein, and harvest index significantly. Keywords:Vigna radiate; salysilic acid; boron
Mathematical Analysis of the Impact of External Factors on the Operating Modes of Pump Installations in the Technological Process: Analisis Matematis Dampak Faktor Eksternal pada Mode Operasi Instalasi Pompa dalam Proses Teknologi Oybek Ishnazarov; Xumoyun Xaydarov
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10507

Abstract

This study explores the mathematical analysis of external factors affecting the operating modes of pump installations in industrial processes. External influences, such as fluctuations in fluid properties, hydraulic resistance, cavitation risks, and environmental conditions, were systematically investigated using a combination of mathematical modeling and experimental validation. The developed model accurately predicts the impact of these factors on pump performance metrics, including flow rate, pressure head, power consumption, and efficiency. Results demonstrate that a 10°C increase in fluid temperature leads to a 4% efficiency reduction due to viscosity changes, while optimizing pipe diameter reduces hydraulic resistance by 15%. The study further highlights the critical role of maintaining adequate Net Positive Suction Head (NPSH) to prevent cavitation, as efficiency drops by 12% when NPSHavailable is below NPSHrequired. The validated model provides actionable insights for optimizing pump operations, reducing energy consumption by up to 20%, and enhancing reliability in industrial settings. These findings contribute to the development of sustainable and energy-efficient pumping systems. Highlights: Mathematical Analysis of External Factors on Pump Operations Impact on Performance, Efficiency, and Energy Consumption Optimizing Pump Systems for Sustainability and Reliability Keywords - Pump installations, mathematical modeling, external factors, hydraulic resistance, cavitation, Net Positive Suction Head (NPSH), energy efficiency, industrial processes, fluid dynamics, variable frequency drives (VFDs)
Study of the Properties of Foaming Agents Ufapore gp xp 75%, Omax ks100 and Frem Foam for Foam Concrete: Studi Sifat Bahan Pembusa Ufapore gp xp 75%, Omax ks100 dan Frem Foam untuk Beton Busa Muhammadiev Nemat; Turgunbaev Urinbek; Bekkulov Valijon
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10508

Abstract

The article examines the main properties of foaming agents UFAPORE GP XP 75%, OMAX KS100 and FREM FOAM such as - high expansion and durability, sufficient foam durability in solution, durability of the mixture over time. The results of the analysis of the stability, expansion rate and mechanical strength of the foam made it possible to determine the optimal concentrations of the FREM FOAM foaming agent, at which the foam demonstrates the best technological characteristics. To assess the effect of binders and fillers on the foam volume, the foam utilization factor (FUF) was calculated, which is the ratio of the volume of the foam-cement mixture to the initial volume of foam. It is believed that high-quality foam should have a FUF in the range of 0.8–0.85. Initial experiments showed that at surfactant concentrations of up to 0.5%, the foam mass is insufficient to obtain foam-cement masses with constant properties. At the same time, at concentrations over 2.5%, there is excessive consumption of foaming agent, which leads to a violation of the homogeneity of the foam structure. As a result, the optimal range of foaming agent concentrations from 0.5 to 2.5% was selected. Highlights: Examines properties of foaming agents: expansion, durability, and stability. Determines optimal FREM FOAM concentrations for best foam characteristics. Identifies optimal foam utilization factor range (0.8–0.85) for quality foam. Keywords - foaming agent, non-autoclave, foam, porous , foam mass , foaming agent multiplicity.
Epidemiology of Cutaneous Leishmaniasis and Its Diagnosis Using Polymerase Chain Reaction Technique in Salah Al-Din Governorate.: Epidemiologi Leishmaniasis Kulit dan Diagnosisnya Menggunakan Teknik Reaksi Rantai Polimerase di Kegubernuran Salah Al-Din. Ahmed Abdulraheem Hassan; Ohood Mozahim Shakir
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10510

Abstract

The study, conducted from October 2022 to March 2023, aimed to detect cutaneous leishmaniasis in 169 samples from visitors to Samarra General Hospital and dermatology outpatient clinics. Samples were confirmed via direct smear and PCR techniques. The study examined the spread of the parasite by various factors, revealing a higher infection rate in rural areas (64.5%) compared to urban areas (35.5%). The highest infection rate was observed in children aged 1-10 years (21.89%), followed by those aged 21-30 years (17.7%), while the lowest infection rate was in individuals aged 61-70 years (4.73%). Wet ulcers were more common (75.1%) than dry ulcers (24.9%). The infection rate was highest in January (27.22%), followed by February (21.89%), with March showing the lowest rate (10.65%). Facial infections were most common (42.6%), followed by lower extremities (40.23%), and the trunk had the lowest incidence (0.59%). Molecular analysis using PCR revealed that L. major was the predominant type (68.64%), with L. tropica accounting for 31.36%. Males showed a higher infection rate for both types, with L. major affecting 44.38% of males compared to 24.26% of females, and L. tropica infecting 21.3% of males versus 10.06% of females. Highlights: Study on cutaneous leishmaniasis in 169 samples, confirmed by smear and PCR. Higher infection in rural areas, children, wet ulcers, and January-March period. L.major prevalent (68.64%), higher male infection rates in both parasite types. Keywords: leishmaniasis, pcr, diagnosis ,leishmania tropica, lishmania major
Maintenance of Cement Concrete Pavements: Defects and Their Elimination: Pemeliharaan Perkerasan Beton Semen: Cacat dan Penghapusannya Khadicha Urolova; Aslidin Urokov
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10512

Abstract

The main purpose of this article is to analyze the operational condition of existing cement-concrete roads in the Republic of Uzbekistan and identify work to eliminate existing problems. According to this, defects in cement concrete pavements, using the method of visual examination of the condition proposed by British specialists, are the objects of study of the section of the A-380 “Guzor-Bukhara-Nukus-Beynov” highway (480-490 km) and section of the M-39 “Almaty-Bishkek-Tashkent-Shakhrisabz-Termiz” highway (1173-1184 km). Based on the results, coating surface defects and structural defects were classified, and the causes and consequences of their occurrence were analyzed. The importance of improving storage technologies in eliminating problems caused by defects in cement concrete pavements is emphasized, and through this, issues of increasing the service life of coatings are considered. At the same time, recommendations were made on continuous monitoring of the condition of the roads in use, organization, and planning of operational works based on the results of the study of the pavement condition. Highlights: Analysis of Road Conditions: Evaluating defects in Uzbekistan’s cement-concrete highways. Causes and Solutions: Identifying defects, their causes, and solutions for longevity. Recommendations: Continuous monitoring, improved storage, and operational planning for Keywords - cement concrete, service life, surface defects, structural defects, Visual condition surveys (VCS).
Triangle Support for Live Maintenance of 20 kV Distribution Lines: Penyangga Segitiga untuk Pemeliharaan Langsung Saluran Distribusi 20 kV Hairul Ismail; Jamaaluddin Jamaaluddin
Academia Open Vol. 10 No. 2 (2025): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10526

Abstract

General Background: Reliable electricity supply is a fundamental requirement for societal productivity, requiring distribution network maintenance strategies that minimize service interruptions. Specific Background: Live-line maintenance using PDKB distance and direct contact methods on 20 kV medium-voltage overhead lines remains constrained by task-specific equipment, resulting in operational inefficiency, worker fatigue, and continued reliance on outages for certain constructions such as double insulator pedestal and double strain insulator. Knowledge Gap: Economic analyses of multifunctional maintenance equipment capable of supporting multiple PDKB tasks without power outages are still limited, particularly for integrated tools applied to diverse construction configurations. Aims: This study aimed to analyze the economic application of the Triangle Support tool for maintenance of double insulator pedestal and double strain insulator constructions on 20 kV distribution lines without grid outages. Results: The Triangle Support, configurable into three arrangements, enabled 16 types of PDKB tasks, including seven activities previously requiring outages, while generating energy savings of 191,422 kWh and additional company revenue of IDR 217,455,773 due to reduced completion time. Novelty: The research introduces a modular triangular support system integrating multiple live-line maintenance functions within a single tool supported by cost–benefit analysis. Implications: The findings indicate that adoption of Triangle Support can reduce outage frequency, improve operational continuity, and provide measurable economic benefits for power distribution maintenance services. Highlights: A Single Modular Device Accommodated Multiple Distance and Direct Contact Maintenance Tasks. Several Activities Previously Requiring Outages Were Shifted to Live-Line Procedures. Measurable Energy Savings and Additional Revenue Resulted From Shorter Job Duration. Keywords: Triangle Support, Live-Line Maintenance, 20 Kv Distribution Network, Pdkb Methods, Economic Analysis
Enhancing Managerial Competencies of Civil Servants in Uzbekistan: An Organizational-Economic Approach in the Context of Digital Transformation: Meningkatkan Kompetensi Manajerial Pegawai Negeri Sipil di Uzbekistan: Pendekatan Ekonomi-Organisasional dalam Konteks Transformasi Digital Sarvar Khayrulloevich Saidov
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10538

Abstract

The article deals with the development of managerial competencies among civil servants in Uzbekistan in the context of virtual transformation. The primary goal of the study is to design and test an organizational-economic mechanism aimed at streamlining the professional training of civil servants. The research uses a comprehensive method that includes analysis of regulatory frameworks, sociological surveys, competency diagnostics and evaluation of high-quality practices worldwide. The proposed mechanism, which includes virtual learning structures, tailored professional development pathways and modern assessment techniques, has proven to be effective in promoting professional coaching of civil servants. The reasonable significance of the study lies in the applicability of the proposed approach to improve first-class public administration in Uzbekistan and in various countries undergoing modernization. Highlights: Focus: Development of managerial competencies in civil servants amid virtual transformation. Method: Regulatory analysis, surveys, competency diagnostics, and best practice evaluations. Impact: Enhances public administration through virtual learning and professional coaching. Keywords: managerial talents, public service, virtual transformation, professional development, organizational-monetary mechanism, development of useful human resources, virtual academic structures, global entertainment
Information Systems for Convolutional Neural Network in Diabetes Detection Using Fundus Images: Sistem Informasi Jaringan Syaraf Tiruan untuk Deteksi Diabetes Menggunakan Citra Fundus Wafaa Razzaq
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10546

Abstract

Diabetes is regarded as a serious illness, and early detection enhances patient treatment and quality of life. This research develops a convolutional neural network for diabetes detection using fundus images from the IDRID image set. The convolutional neural network's performance analysis is applied to cross-validation and comparison with other patterns found in earlier research using techniques including Random Forest, Extra Trees, SVM, and AdaBoost. Our CNN pattern consists of an input layer, three convolutional layers, three pooling layers, two fully connected layers, and an output layer with two neurons. An accuracy of 83.50% was obtained from the evaluation of the convolutional neural network pattern using 103 photos, which is better than the results of earlier research. Highlights: CNN developed for diabetes detection using IDRiD fundus images. Compared with RF, ET, SVM, and AdaBoost via cross-validation. CNN achieved 83.50% accuracy, outperforming previous research. Keywords: Convolutional Neural Network, Diabetes Screening, Machine Learning, Deep Learning.
Scientific-Theoretical Essence and Economic Foundations of Investment and Investment Attractiveness Concepts: Esensi Ilmiah-Teoritis dan Landasan Ekonomi dari Investasi dan Konsep Daya Tarik Investasi Zikrillayev Nusratilla Nurullayevich
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10547

Abstract

This paper examines the fundamental cоncepts оf investment and investment attractiveness, fоcusing оn their scientific-theоretical essence and ecоnоmic fоundatiоns. The research analyzes variоus apprоaches tо understanding investment attractiveness, particularly in the cоntext оf industrial and mining sectоrs. Thrоugh a cоmprehensive review оf bоth fоreign and lоcal literature, the study investigates the key factоrs that influence investment decisiоns at bоth macrо and micrоecоnоmic levels. Special attentiоn is given tо the methоdоlоgical aspects оf assessing investment attractiveness, including the evaluatiоn оf investment pоtential, risk assessment, and the rоle оf variоus ecоnоmic indicatоrs. The paper alsо explоres the relatiоnship between investment attractiveness and sustainable ecоnоmic develоpment, highlighting the impоrtance оf creating favоrable investment envirоnments in develоping ecоnоmies. The findings suggest that investment attractiveness is a cоmplex, multifaceted cоncept that encоmpasses ecоnоmic, sоcial, pоlitical, and institutiоnal factоrs, all оf which play crucial rоles in determining the success оf investment strategies. Highlights: Investment attractiveness in industrial and mining sectors. Reviews economic indicators, risk assessment, and investment potential. Highlights role in sustainable economic development and policy-making. Keywоrds: Investment attractiveness; Ecоnоmic develоpment; Investment pоtential; Risk assessment; Mining industry; Industrial develоpment; Fоreign investment; Investment climate; Ecоnоmic indicatоrs; Investment strategy
Shadow Economy in Uzbekistan: National Trends and International Perspectives: Ekonomi Bayangan di Uzbekistan: Tren Nasional dan Perspektif Internasional Abduganiev Jamshid Alievich
Academia Open Vol. 10 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.10548

Abstract

There has been a persistent shadow economy in the development of Uzbekistan, existing from an economic transition context along with tax evasion, informal employment, and illicit activities. However, government reforms have not reduced the size of informal sector which stands at about 27.2% of GDP, with the maximum being 52%. Addressing a knowledge gap, this study uses a mixed methods approach of statistical analysis and policy evaluation to analyse the drivers and the implications of the shadow economy. They found that high tax burdens, regulatory barriers, and attitudes among the general public concerning governance promoting informal practices. The results indicate that while recent efforts at curbing corruption and making the economy more open, are assisting in 'shedding' the shadow economy, there are still important yet residual obstacles in formalizing the labor market and achieving equitable economic development. Through these insights it is clear that legislative reforms, digitalization, and international coopeartion is needed to ensure that targeting, long term strategies are used to promote transparency and sustainable growth in Uzbekistan. Highlights: Uzbekistan's shadow economy persists due to high taxes, regulation, and informal practices. Recent reforms aid transparency, but obstacles remain in labor market formalization. Legislative reforms, digitalization, and international cooperation needed for sustainable growth. Key words: shadow economy, Uzbekistan, informal employment, tax evasion, economic reforms, governance, anti-corruption, economic development, regulatory barriers, digitalization.

Page 129 of 239 | Total Record : 2389

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