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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
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Optimization of Friction Stir Welding Parameters for AA6061-T651 Aluminum Alloy: Defect Analysis and Process Improvement: Optimalisasi Parameter Pengelasan Gesekan Aduk untuk Paduan Aluminium AA6061-T651: Analisis Cacat dan Peningkatan Proses Mulyadi; Rachmat Firdaus; Rahmania Sri Untari
Academia Open Vol. 8 No. 1 (2023): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6665

Abstract

Friction Stir Welding (FSW) is an eco-friendly process known for high-quality joints without filler metal. This study investigated the physical properties of FSW-welded joints in AA6061-T651 aluminum alloy by varying the concave shoulder angle. Optimal process parameters were determined through Taguchi optimization using an Orthogonal Array design. Macro and micro testing revealed overlap defects, kissing bond defects, and wormholes in some samples. Systematic experimentation identified key parameters to avoid defects, including tool rotation speed, welding speed, tool tilt angle, tool indentation angle, and shoulder depth. Visual inspection and microstructural analysis played a crucial role in assessing weld quality. Optimizing welding parameters, such as rotational speed, welding speed, temperature, and tool geometry, was highlighted as crucial for defect-free joints. The study offers valuable insights for researchers and professionals in the field, promoting the advancement and application of FSW in aluminum alloy welding. Highlight: FSW: An environmentally friendly welding process with good joint quality. Defect Analysis: Identification of overlap defects, kissing bond defects, and wormholes in welded joints. Process Optimization: Determination of optimal parameters to avoid defects, including tool rotation speed, welding speed, tool tilt angle, tool indentation angle, and shoulder depth. Keyword: Friction Stir Welding, AA6061-T651 Aluminum Alloy, Welded Joint Analysis, Process Optimization, Defect Prevention
Revitalizing Textile Enterprises: A Holistic Approach to Value-Added Economical Production: Menghidupkan Kembali Perusahaan Tekstil: Pendekatan Holistik terhadap Produksi Ekonomis Bernilai Tambah Yakhyаeva Inobat
Academia Open Vol. 8 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6675

Abstract

This study delves into the economic characteristics governing the value-added chain's formation within the framework of economical production in textile enterprises. The primary goal was to optimize material resource usage, increase product volume, boost profits, and enhance customer satisfaction through strategic reorganization and innovative technological implementation. Comparative analysis, statistical evaluation, logical thinking, and other scientific methodologies were employed to illustrate the correlation between the value-added chain and production costs in textile businesses. Findings suggest that economical production at these enterprises hinges on both organizational and methodological components, including forward tasks, employee quality, and the technology in use. The implications highlight that effective utilization of material resources, coupled with strategic changes in understanding cost-effective production, could lead to increased profitability and quality of goods. This approach serves as a progressive model for textile enterprises, offering promising potential for economic stabilization at a macro level.Highlights: Resource Optimization: Efficient use of raw materials in textile production. Strategic Reorganization: Importance of organizational elements in value-added, economical production. Macroeconomic Impact: The potential of enterprise efficiency for macroeconomic stabilization. Keywords: Textile Enterprises, Economical Production, Value-Added Chain, Resource Optimization, Profitability.
Enhancing Medical Record Quality via Coding Accuracy: Meningkatkan Kualitas Rekam Medis melalui Akurasi Pengkodean Eka Ryan Saputra; Cholifah Cholifah
Academia Open Vol. 9 No. 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.9.2024.6769

Abstract

Elements of coding quality in medical records include reliability, completeness, validity, and timeliness. This analytical study, employing a quantitative approach, evaluated medical record files of patients with injuries and external cause cases at Ibnu Sina Hospital, Gresik, from October to December 2022. Using the Slovin formula, 161 samples were randomly selected from a population of 271 records. The study variables were reliability (diagnosis readability), completeness (diagnostic code completeness), and validity (5th digit use, diagnosis code accuracy, and external cause code accuracy). Data were analyzed using SPSS and the Chi-Square test. The study found significant relationships between the validity of diagnosis codes and the quality of medical records (p = 0.0001). Reliability showed no significant impact (p = 0.470), while completeness (p = 0.0001) and the use of the 5th digit (p = 0.0001) were significantly related to diagnosis code accuracy. These findings highlight the critical role of accurate coding in improving medical record quality and suggest targeted improvements in coding practices. Highlight: Significant Link: Diagnosis code accuracy is crucial for medical record quality. Critical Factors: Completeness and 5th digit use are key for accurate coding. Targeted Improvements: Focused coding practice enhancements can boost record quality. Keyword: coding quality, reliability, completeness, validity, medical records
Reducing Pending BPJS Claims Through Risk Management: Mengurangi Klaim BPJS yang Tertunda Melalui Manajemen Risiko Fitri Hariyanti; Cholifah Cholifah
Academia Open Vol. 9 No. 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.9.2024.6771

Abstract

Pending BPJS claims delay hospital payments, with the guarantee unit playing a crucial role. This study analyzes risk management in the guarantee unit regarding pending inpatient claims using a qualitative approach and the FMEA method. Data from interviews, questionnaires, and BPJS claim confirmation sheets revealed four potential risks causing pending claims, with readmission potential as the highest priority (RPN score of 75). The proposed improvements include coordinating, socializing, and educating related units on the readmission concept. Implementing these strategies can reduce pending claims, ensuring timely BPJS payments to hospitals. Highlight: Identified four risks causing pending claims. Readmission risk prioritized (RPN score 75). Education and coordination proposed to reduce claims. Keyword: BPJS claims, risk management, guarantee unit, FMEA, readmission
Obstacles to Agricultural Development in the District of Samarra and AL-Dour : Hambatan Pembangunan Pertanian di Wilayah Samarra dan Al-Dour Zilal Abdul Karim Muhamad; Abdul Karim Rashid Abdul Latif
Academia Open Vol. 8 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6803

Abstract

This article presents a comprehensive study conducted in Samarra and Al-Dour districts, focusing on the impact of agricultural components on development. The study aims to identify and analyze the natural, human, and economic obstacles that impede agricultural progress in the region. Through questionnaire data analysis, several key findings emerge. Natural factors such as inadequate rainfall, arid soil conditions, and soil salinization pose significant challenges to agricultural development. Insufficient utilization of water resources further exacerbates these constraints. Agricultural pests also cause substantial damage to crops, leading to farmer abandonment of agricultural practices. Roughly 30-35% of cultivated areas are affected. Moreover, a decline in agricultural labor is observed, with individuals deterred by constraints and limited financial returns. The increasing population in the region intensifies food demand and pressures agricultural land for housing, compounding challenges for farmers. Water scarcity emerges as a primary constraint, leading to neglect of agricultural areas due to inadequate irrigation. Progressive soil salinization and desertification, influenced by natural and human factors, worsen the situation. Approximately 22.38 km² of land are affected, particularly in eastern and southern Samarra and eastern Al-Dour. The study underscores the need for targeted interventions and policies to overcome these obstacles and foster sustainable agricultural development. Strategies should prioritize water resource management, pest control, technological advancements, and addressing labor shortages. Implementing these measures will contribute to long-term agricultural sustainability, food security, and economic growth in the studied regions. Highlights: Natural and human constraints hinder agricultural progress in Samarra and Al-Dour districts. Agricultural pests cause significant damage and discourage farming activities. Water scarcity and soil salinization negatively impact agricultural development.
Calculating Thin Film Strain From XRD Data: Menghitung Regangan Film Tipis dari Data XRD Shelan Salm Sadiq Qadr
Academia Open Vol. 8 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6835

Abstract

This study aims to investigate the crystallite size and microstrain of Cu plate samples subjected to various hot water treatment times using the Williamson-Hall method and XRD profiles. The estimated crystallite sizes obtained from this method were compared with scanning electron microscope (SEM) observations, showing good agreement. The Williamson-Hall method was also utilized to determine microstrain, and the influence of temperature on the mechanical properties of copper was examined, highlighting the dominant role of dynamic softening mechanisms in copper deformation. Line broadening analysis was employed to compare crystallite size and microstrain, demonstrating the usefulness of the Williamson-Hall method in cases where both factors contribute to line broadening. The research underscores the reliability of the Williamson-Hall method in accurately determining crystallite size and microstrain from XRD line broadening analysis. The findings reveal that increasing treatment time leads to higher strain in thin films, and the calculated crystal size aligns well with reference measurements. This study provides valuable insights for designing and synthesizing copper-based materials with improved structural integrity and desired mechanical properties. Highlights: Accurate characterization: The Williamson-Hall method and XRD profiles are reliable techniques for determining crystallite size and microstrain in Cu plate samples, validated by comparison with SEM observations. Temperature influence: Temperature plays a crucial role in the mechanical properties of copper, with dynamic softening mechanisms dominating the deformation behavior. Line broadening analysis: Line broadening analysis allows for the comparison of crystallite size and microstrain, demonstrating the utility of the Williamson-Hall method in cases where both factors contribute to line broadening.
Negative Correlation Between Emotional Intelligence and Adolescent Aggression: Korelasi Negatif Antara Kecerdasan Emosional dan Agresi Remaja Chusnul Widya; Lely Ika Mariyati
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.10.2025.6907

Abstract

General Background: Adolescence is marked by psychological and emotional transitions that can trigger behavioral instability. Specific Background: Aggressive behavior among students, including physical, verbal, emotional, and cognitive hostility, is increasingly observed, while emotional intelligence is linked to self-awareness, emotional control, empathy, motivation, and social interaction skills. Knowledge Gap: Empirical data examining the statistical relationship between emotional intelligence and aggressive behavior among vocational high school students, particularly in SMK X Sidoarjo, remains limited. Aims: This study investigates the relationship between emotional intelligence and aggressive behavior among vocational adolescents. Results: A quantitative correlational approach involving 289 students revealed a significant negative relationship between emotional intelligence and aggressive behavior (p = 0.012; r = -0.133). Emotional intelligence contributed 1.8% to the variance in aggressive behavior, with most students showing moderate levels of both variables. Novelty: This study provides empirical statistical evidence regarding the association between emotional intelligence and aggressive tendencies in Indonesian vocational adolescents. Implications: The findings offer academic and practical insights for educators and school counseling services in developing emotional intelligence programs to address aggressive tendencies among students. Highlights: Statistical Testing Confirmed a Significant Inverse Association Between Measured Psychological Variables. Most Participants Demonstrated Moderate Levels Across Both Measured Constructs. The Measured Psychological Predictor Accounted for a Small Proportion of Behavioral Variance. Keywords: Emotional Intelligence, Aggressive Behavior, Adolescents, Vocational Students, Correlational Study
Construction of Political Identity on Instagram: Unveiling the Kadrun Hashtag Movement in Indonesia's 2024 Presidential Election: Konstruksi Identitas Politik di Instagram: Menyingkap Gerakan Tagar Kadrun dalam Pemilihan Presiden 2024 di Indonesia Ferry Adhi Dharma; Didik Hariyanto; Fajar Muharram
Academia Open Vol. 8 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6922

Abstract

This scientific article investigates the construction of political identity through hashtag movements on Instagram, focusing on the "#kadrun" hashtag related to Anies Baswedan, a presidential candidate for the 2024 election in Indonesia. Using the framing analysis method by Zhong Dang Pan and Gerald M. Kosicky, the study examines the structural dimensions of political identity content by observing and analyzing the hashtag from October 3, 2022, to May 3, 2023. The results reveal three Instagram accounts actively contributing and acting as political identity buzzers, uploading 89 to 92 contents within seven months. The hashtag frames Anies Baswedan and his supporters as a radical Islamic group, seeking to establish a caliphate, and intolerant, potentially leading to political polarization based on religion, community, and ethnicity in the upcoming election. These findings hold implications for understanding the impact of social media content on political discourse and polarization, especially among young active voters who rely on Instagram as a source of information during elections. Highlight: Research Scope: The study explores the construction of political identity on social media, particularly through hashtag movements on Instagram related to the 2024 presidential candidate in Indonesia, Anies Baswedan, and the "#kadrun" hashtag. Framing Analysis: Utilizing the framing analysis method by Zhong Dang Pan and Gerald M. Kosicky, the research examines the structural dimensions of political identity content on Instagram, focusing on message characteristics and content design from October 3, 2022, to May 3, 2023. The hashtag spreads messages identifying Anies Baswedan as a radical Islamic group, causing potential religious-based political polarization, as seen in the 2019 Election. Additionally, ethnic elements now contribute to polarization based on religion, community, and ethnicity in the 2024 elections. Keyword: Political Identity, Social Media, Hashtag Movements, Instagram, Political Polarization.
Influence of Sucrose and Scoby Concentration on Physical Characteristics of Pineapple Skin Kombucha: Pengaruh Konsentrasi Sukrosa dan Scoby terhadap Karakteristik Fisik Kombucha Kulit Nanas Rahmah Utami Budiandari; Andriani Eko Prihatiningrum; Rima Azara; Faiza Nur Aini
Academia Open Vol. 8 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6935

Abstract

This study investigates the impact of sucrose and Scoby concentration on the physical characteristics of kombucha made from pineapple skin juice. It was conducted using a randomized block design factorial with different sucrose and Scoby concentrations. The findings show that sucrose concentration significantly affected the total dissolved solids (TDS) of kombucha, while Scoby concentration had no significant effect. The highest TDS value was in the 5% sucrose concentration, and the lowest was in the 10% Scoby concentration. The study provides valuable insights for further research and applications in probiotic beverages and fermentation processes. Highlight: The study investigates the impact of sucrose and Scoby concentration on the physical properties of kombucha made from pineapple skin juice. Sucrose concentration significantly influences the total dissolved solids (TDS) of kombucha, while Scoby concentration shows no significant effect on TDS. The weight and thickness of the pellicle formed in kombucha are affected by both sucrose and Scoby concentrations, whereas the diameter remains unaffected. Keyword: Pineapple Skin, Kombucha, Sucrose Concentration, Scoby Concentration, Physical Characteristics.
Analysis of the Effects of Polarity Variations, Electrode Types, and Cooling Media on the Tensile Strength of ASTM A36 Steel Welded Joints: Analisa Pengaruh Variasi Polaritas, Elektroda, dan Media Pendingin Terhadap Kekuatan Tarik Sambungan Las Material Baja ASTM A36 Anis Siti Nurrohkayati; Zakki Anggara
Academia Open Vol. 8 No. 1 (2023): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6943

Abstract

This research investigates the pivotal role of welding in manufacturing and construction, specifically in the context of material joining for ASTM A36 steel. The study aims to determine the impact of polarity, electrode type, and coolant on the maximum tensile strength of welds. A total of 54 specimens were welded using Shielded Metal Arc Welding (SMAW) with DCEN and DCEP polarities, employing electrode variations of E6013, E7016, and E7018, along with different coolants—Air, Oil, and Saltwater. The results reveal that E7018 welding at a speed of 100 mm/s exhibited the highest tensile strength of 529 MPa, with an average maximum load of 37.35 kN. Conversely, the lowest tensile strength was observed in E6013 welding at 100 mm/s, recording 339 MPa with an average maximum load of 25.84 kN. Additionally, E7018 welding at a speed of 100 mm/60 s showed the highest elasticity of 22.08% with a maximum load of 37.55 kN. These findings contribute valuable insights for optimizing welding processes, thereby enhancing the mechanical integrity of ASTM A36 steel in various industrial applications. Highlights: Significance of Polarity: Investigating the impact of DCEN and DCEP polarities on welded material strength. Electrode Influence: Understanding how E6013, E7016, and E7018 electrodes affect the mechanical properties of welds. Coolant Consideration: Analyzing the role of Air, Oil, and Saltwater as coolants in optimizing welding outcomes. Keywords: Welding, ASTM A36 steel, Polarity, Electrode, Coolant

Page 84 of 239 | Total Record : 2389

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