bluuebunny/crossref_metadata_2025 huggingface dataset:
Residential Building Design and Optimization in Arid Climates using Multiple Objectives and ANN-GA
Authors: Belahya Hocine  , Boubekri Abdelghani  , Belarbi Rafik  , Romani Zaid
Published: January 2024

Residential buildings in arid regions, such as South Algeria, are responsible for a considerable portion of the total electrical energy consumption, surpassing 60%. To tackle this challenge, this research proposes a novel multi-objective approach aimed at designing typical residential buildings. This approach combines the utilization of a Genetic Algorithm (GA) optimization technique with an Artificial Neural Network (ANN) model, implemented using the Python programming language and integrated with TRNSYS software. The performance of the ANN model is thoroughly evaluated and validated using the TRNSYS software. The integration of Python and TRNSYS facilitates the generation of training datasets for the ANN model. This co-simulation framework provides a powerful tool for accurately estimating energy consumption and life cycle costs (LCC). The results obtained through the TOPSIS-based analysis reveal a remarkable reduction in cooling and heating energy usage, up to 51.43% and 98.97%, respectively, when compared to the basic scenario.
Role of Soret, Dufour Influence on Unsteady MHD Oscillatory Casson Fluid Flow an Inclined Vertical Porous Plate in the Existence of Chemical Reaction
Authors: Vasa Vijaya Kumar  , M. N. Raja Shekar  , Shankar Goud Bejawada
Published: January 2024

A numerical investigation of the Soret-Dufour impacts on the motion of an unstable, viscous, and incompressible MHD flow through a semi-infinite, permeable, inclined plate that is immersed in a variable-temperature, mass-diffusing porous medium. This is done with the consideration that a chemical reaction and heat sink will have an effect on the motion of the flow. With the help of the finite difference method, the nondimensional governing equations of the flow field may be determined for a number of different possible combinations of the governing flow components. The results are consistent with other work of a similar kind that has been published in other places. The results are in line with a subset of other research that has been published in the past. In the context of inclination angle, Casson fluid, and aligned magnetic field characteristics, the findings of the present research indicate that a consistent slowing influence is maintained on velocity. This was determined by analyzing the results of the previous study. When all of these factors, including the inclination angle, magnetic field, Casson fluid, and alignment parameter, are raised, the velocity decreases.
Application of the Conjugate Gradient Method for Predicting Unknown Heat Flux in 2D Plat under Effect of Insulation
Authors: Ari Satmoko  , Engkos Achmad Kosasih  , Muhammad Irfan Dzaky  , Hairul Abral  , Anhar Riza Antariksawan  , Andril Arafat
Published: January 2024

When an anomaly is discovered during a thermal inspection of industrial equipment, the diagnosis of finding the heat source is made more difficult by the presence of heat insulation. The use of the Conjugate Gradient Method (CGM) to solve the unknown heat flux in Inverse Heat Conduction Problem (IHCP) under insulation condition has been discussed. This method is used to predict a heat flux by utilizing temperature data at any points of measurement. The study deals with the structure of 2D thin plate at steady state. A copper plate with a thickness of 1 mm is used as specimen. White glass wool is used to thermally insulate the plate on the back surface. An electrical heater is plate mounted and operated by varying the DC voltage. A datalogger with thermocouple sensors records plate temperature changes. Software for solving the IHCP based on the CGM was developed. Initially, the software was implemented using synthetic data obtained from the forward heat conduction equations with a known heat flux. Simulated measurement data are assumed to have high accuracy (± 0.1 ºC). Determination of heat flux with the CGM gives very satisfactory results with a low error below 0.12%. The CGM was then applied using experimental data. With a measurement error of ± 0.5 ºC, the computational stopping criterion can still be met satisfactorily. In real installations, equipment is sometimes partially or completely isolated. In the experiment, this phenomenon is simulated by varying the isolation area as follows: 0%, 25%, 50% and 100%. The results of the flux calculation are correlated with the real flux supplied by the electrical heater. Each type of insulation area has a similar curve. By obtaining the correlation equation, the equivalent heat flux from calculation to real and vice versa can be carried out.
A Comparative Analysis on Single and Two Phase Casson Fluid under Aligned Magnetic Field Effect and Newtonian Heating
Authors: Tijjani Lawal Hassan  , Abdul Rahman Mohd Kasim  , Mohd Haziezan Hassan
Published: January 2024

This research investigates the impact of aligned magnetic fields and Newtonian heating on single and two-phase Casson fluid (a mixture of Casson fluid and dust particles), addressing a notable knowledge gap in comparing the two fluid models under the same effect. The problem of this study lies in the need to understand the similarities or differences in the reaction of these fluids to external forces. To achieve this, the governing equations for both fluids were formulated using a boundary layer approximation and numerical solutions were obtained utilizing the 'bvp4c' function within MATLAB software. The analysis revealed comparable trends in flow and thermal behaviour between the two fluids, it also showed that the magnetic field exerted a more pronounced influence on flow properties compared to forces such as buoyancy and inertia. Conversely, Newtonian heating conditions had a more significant impact on thermal properties compared to the magnetic field. Additionally, the single-phase Casson fluid showed higher velocity and temperature profiles than the two-phase Casson fluid phases. These findings suggest that the presence of dust particles reduces the velocity and temperature magnitudes of the Casson fluid.
Non-Newtonian Fluid Film Lubrication of Asymmetric Rollers using Vogel Viscosity-Temperature Relationship
Authors: Swetha Lanka  , Venkata Subrahmanyam Sajja  , Dhaneshwar Prasad
Published: January 2024

A theoretical analysis of asymmetric roller bearing system with cavitation that is hydro-dynamically lightly loaded and lubricated by a thin, in-compressible fluid is presented. The lubricant adheres to the non-Newtonian Bingham plastic fluid concept, in which the viscosity of the fluid should change depending on the mean film temperature. The continuity and momentum equations, which regulate fluid flow, are first solved analytically and then numerically using MATLAB. Through graphs and tables, some key bearing features are addressed and further explained. This leads to the conclusion that there is a discernible difference between Newtonian and non-Newtonian fluids in terms of pressure, temperature, load, and traction. The findings are good in line with the body of literature.
Enhancing Battery Thermal Management in Li-ion-Powered Electric Vehicles using Phase Change Material-based Systems: A Multi-Scale CFD Simulation Study
Authors: Divya D Shetty  , Mohammad Zuber  , Chethan KN  , Ayush G Shetty  , Irfan Anjum Badruddin  , Chandrakant R Kini
Published: January 2024

Electric cars (EVs) and hybrid electric vehicles (HEVs) are propelled by Li-ion batteries for a clean and sustainable future. Under harsh and abusive conditions, a battery pack generates a lot of heat, which could result in a disastrous thermal runaway. The current work suggests a Battery Thermal Management System (BTMS) based on Phase Change Material (PCM) to prevent thermal runaway. Using ANSYS's multi-scale, multi-dimensional Newman, Tiedemann, Gu, and Kim (NTGK) model, a 3D simulation of a single battery with PCM, is carried out. The thermal performance and discharge behavior of the battery pack is analyzed by the NTGK model. The solidification and melting model is combined with the NTGK for PCM-based BTMS. Under harsh and abusive circumstances, the effect of different discharge rates on the thermal performance of 26650 Li-ion cell with and without PCM is investigated. The PCM-based BTMS reduces the maximum battery temperature by 2.243 K ,1.44 K, and 2.5 K and increases temperature uniformity at 0.5C ,1C and 1.5C discharge rates, respectively. The data available from this research will be useful in the development of passive BTMS for EV applications.
Unsteady Hiemenz Flow of Cu-SiO2 Hybrid Nanofluid with Heat Generation/Absorption
Authors: Yap Bing Kho  , Rahimah Jusoh  , Mikhail Sheremet  , Mohd Zuki Salleh  , Zulkhibri Ismail  , Nooraini Zainuddin
Published: January 2024

The use of hybrid nanofluid as an alternate heat transfer fluid has shown great potential, and ongoing research to improve its thermal conductivity is important. This study focuses on the impact of heat generation/ absorption on the unsteady Hiemenz flow of aqueous hybrid nanofluid containing copper and silica nanoparticles. Mathematical equations for the hybrid nanofluid model are derived using suitable similarity transformations and solved numerically using bvp4c codes in Matlab software. The results indicate that increased heat generation/absorption leads to an increase in both momentum and thermal boundary layer thickness. The effects of suction and nanoparticle concentration are also analysed and presented graphically. Additionally, a stability analysis is also performed, which discloses that the first solution produced is stable, however, the second solution is not. The findings of this study provide valuable insights into the behaviour of hybrid nanofluid in unsteady flow and can aid in the development of more efficient heat transfer fluids for various engineering applications.
The Thematic Review on Convective Heat Transfer of Nanofluid over Horizontal Circular Cylinder
Authors: Farahanie Fauzi  , Abdul Rahman Mohd Kasim  , Hussein Ali Mohammed Al-Sharifi  , Siti Farah Haryatie Mohd Kanafiah
Published: January 2024

Convective heat transfer refers to thermal energy transfer from one place to another due to the movement of fluid. To increase the performance of thermal energy transfer, nanoparticles are diluted into the fluid resulting nanofluid. Even though there are lots of studies have been conducted on the convection heat transfer of nanofluid, there are scarce studies that review the patterns of mainly used mathematical model, boundary conditions, surface geometry and method of solution. Therefore, this paper aims to review the studies on convective heat transfer of nanofluid over horizontal circular cylinder. The focus is to review published articles in the year 2014 until 2023. The reviewed articles were extracted using the advanced documents search function in SCOPUS and WOS databases. Of 67 identified articles, only 37 were selected after undergoing screening process. The result of this thematic review identifies that besides Buongiorno and Tiwari and Das models, mathematical models for non-Newtonian fluid like Viscoelastic, Casson, Jeffrey and Williamson models are also used in modeling convection heat transfer of nanofluid.
Effect of Temperature Gradients and DC Electric Field on Electrothermal Convection in a Rotating Layer of Walter's-B Fluid Saturated Porous Media
Authors: Pavithra Heelalige Mariyappa  , Deepa Kumaran Nair
Published: January 2024

Thermal convection in fluid-saturated porous media has diverse applications across geothermal energy utilisation, thermal insulation engineering, grain storage and understanding geodynamic processes. The thermal convection's physics is crucial for optimising the thermofluid system, improving energy efficiency, and enhancing our understanding of natural phenomena. The study examines how the initiation of electrothermal convection in a rotating viscoelastic fluid layer (Walter's B) is influenced by basic temperature gradients and a uniform vertical DC electric field, considering three different types of velocity boundary conditions: free-free, rigid-rigid, and lower rigid and upper free. By applying an electric field to a fluid, studying electrothermal convection helps engineers design effective cooling systems for electronics. The eigenvalue problem is solved by using the Galerkin technique. The Galerkin method is a widely used numerical technique for solving eigenvalue problems. The DC electric field effect exhibits a more stabilising effect for free-free boundaries than rigid and rigid-rigid boundaries. Moreover, the linear temperature profile exhibits a more stabilising effect than the parabolic temperature profile. The control of electrothermal convection on the system with the impact of other physical parameters is also discussed.
Combined Effects of Chemical Reaction and Radiation on MHD Squeezing Flow of Casson Fluid
Authors: M. Harikrushna  , G. Prabhakara Rao  , A. Mallikarjuna Reddy
Published: January 2024

The impacts of chemical reaction on the magnetohydrodynamic (MHD) squeezing Casson fluid flow through a porous medium under the slip condition with viscous dissipation the presence of radiation parameter have been discussed. The flow is produced when two plates are compressed together in close proximity to one another. Using similarity variables may successfully convert partial differential equations (PDEs) to ordinary differential equations (ODEs). The shooting technique was used to perform the numerical analysis, which entailed solving the competent governing equations with dominating parameters for a thin liquid layer. This was done to determine the results of the study. It is essential to evaluate the numerical results in light of previously conducted research to validate the current answers. According to the results, an increase in the distance between the two plates leads to a rise in the velocity and the wall shear stress. The gas's velocity, temperature, and concentration all drop due to an increase in the Hartmann and Casson parameters. Both the temperature and the rate of heat transfer rise in direct proportion to the amount of viscous dissipation. In addition, it has been shown that the rate of mass transfer rises during destructive chemical interactions, but during constructive chemical reactions, the contrary occurs, which results in adverse effects.
Unsteady MHD Free Convection Flow of a Second Grade Casson Fluid with Ramped Wall Temperature
Authors: K. Venkata Chandra Sekhar
Published: January 2024

The present study delves into the analysis of unsteady free convection flow involving a non-Newtonian Casson fluid adjacent to an infinitely tall vertical plate. The primary objective of this article is to examine the flow behaviour of a second-grade Casson fluid under varying critical parameters. The plate exhibits a gradual increase in wall temperature and is situated within a porous medium. The governing equations are transformed into a dimensionless form, using non dimensionless variables. The method of Laplace transform (MOLT) is employed to derive accurate solutions for the temperature and velocity within the flow field. To enhance comprehension of the issue, The impact of different physical parameters on the flow field has been examined through the utilization of graphs and tables. Outcome of the problem was compared with existing one which was in good agreement. The study revealed that the velocity magnitude was lower in the scenario with ramped temperature compared to the scenario with isothermal temperature. Finally, skin friction and Nusselt numbers of the present work are tabulated. The significant outcome of the present work is that the flow field for the present phenomena is same as that of the existing one in absence of radiation parameter and heat source parameter when, u(0,t)=0, β=∞.
Design, Installation, and Performance Monitoring of a 105 kWp Rooftop Solar PV System
Authors: Issa A. Azab  , Tarek Khass  , Hafez A. El Salmawy  , Reda Ragab
Published: January 2024

Rooftop Solar PV systems are gaining growing attention on the path toward carbon neutrality. Hence, a great effort must be exerted to ensure smooth and efficient penetration of such systems into the existing utility grids. In the current work, a 105 kWp rooftop solar system is designed and installed to fulfil part of the electric demand of the faculty of Engineering, Zagazig University, Egypt. The performance parameters of this grid-connected solar PV system are optimized for the least-cost of electricity supply through using industry-standard software NREL SAM. For the current rooftop system, fixed orientation of an optimized tilt angle of 23 degrees is preferred over sun-tracking systems due to the reduced operating and maintenance costs. The annual energy production of the system is 175,700 kWh with a capacity factor of 19.1%. Through using parametric optimization and inter-connected financial analysis algorithms, it was possible to define the least cost for the electricity supplied to the grid to be 0.55 EGP/kWh, which achieves grid parity in Egypt. The project is finically profitable without any subsidy, with a discounted payback period of 7.9 years, and IRR (on equity) of 20.1 % and saves 1882-ton CO2 over its lifetime. Sensitivity analysis showed that the electricity escalation rate greatly enhances the project finances. In the first year of operation, the system performed fairly well compared with the theoretical design, provided that the system is frequently cleaned (at least once a week) and continuously connected.
Time-Dependent MHD Free Convective Heat Circulation of Hybrid Nano Liquid over a Vertical Porous Plate Due to Temperature Oscillation with Thermal Radiation and Viscous Dissipation
Authors: S. V. Padma  , M. P. Mallesh  , Shankar Rao Munjam  , Kottakkaran Sooppy Nisar
Published: January 2024

In the current numerical simulation, the thermal transfer of viscous incompressible time dependent MHD free convective flow of hybrid nanofluid (Cu-TiO2-H2O) over a vertical porous plate with viscous dissipation and thermal radiation is examined. The system of partial differential equations which controls the fluid flow are transmuted into dimensionless equations and are solved using numerical simulation namely Galerkin Finite Element Method. The momentum and thermal consequences, coefficient of heat transfer and skin friction with Gr, M, Ec, N, t, ωt, δ2, λ – parameters for both nanofluid (Cu-H2O) and hybrid nanofluid (Cu-TiO2-H2O) flows are exposed through graphs and tables. It is revealed that heat transfer coefficient of Cu-TiO2-H2O is more effective when compared with Cu-H2O flows varying with aforementioned parameters. The current numerical computation is in good agreement with the analytical solution of the problem. This study is used in several engineering fields such as electronic cooling, heat exchangers, nanomaterial processing, environmental engineering, chemical industry.
The actual condition and improvement of continuing education program for military personnel
Authors: Kim Minhyuk , Kim Songhyeon
Published: January 2024

The continuing education program for military personnel aims to provide mission execution abilities that correspond to their rank and position, as well as equip them with specialized knowledge and job performance abilities at an advanced level. This is a critical educational process for cultivating professional personnel. However, there are areas that require improvement. Therefore, this study conducted surveys, on-site inspections, expert interviews, and literature reviews to identify problems in the continuing education program for military personnel and propose solutions to address them. The issues identified and the corresponding solutions are as follows: First, education programs that have not been developed should be established in consideration of the capabilities of military schools, or external education agencies should be commissioned to provide proper education. Second, the educational period problem can be addressed by shortening the current period or strengthening remote education to reduce in-person education sessions. Third, the curriculum should be developed by periodically calculating the educational effects, importance, and understanding of each subject, and the decision to include one subject in the next education program should be made based on this analysis. Finally, remote education should be converted into a participatory, two-way learning approach that emphasizes learner-centered education and expanded through Internet-based remote education. In addition to these proposed solutions, further research is needed to compare the continuing education systems for military personnel in the army, navy, air force, and Ministry of National Defense, as well as to compare military personnel education systems in the United States. Further research is also needed to conduct detailed analytical studies on continuing education programs for each military personnel rank, considering the military education environment, and develop an education evaluation model.
Necessity and securing plan of airfield exclusive for test and evaluation infrastructure in military aviation fields
Authors: Cho Sungkak , Kim Yongdae
Published: January 2024

This study addresses the problem of the absence of an airfield dedicated to flight tests, particularly since the need for flight tests has increased significantly with the development of the domestic aviation industry. In particular, the development of unmanned aerial vehicles, including small drones, along with the development of manned aircraft such as KF-21 “Boramae,” marine attack helicopters, and mine-sweeping helicopters, continues to increase flight test requirements. However, developers are not able to secure sufficient flight test time owing to program schedules. Accordingly, industry/academic/research/military and programrelated institutions involved in aircraft development strongly hope to establish an airfield infrastructure dedicated to flight tests. However, to secure a new airfield, several problems must be addressed, such as civil complaints in the region and securing a large budget. Accordingly, this study analyzed various measures to secure a flight test airfield in the defense sector and proposed that a flight test airfield connected to a military airport relocation project could be the most reasonable alternative for resolving regional conflicts and securing budgets.
A rare case of uterine lipo-leiomyoma in a 63-year-old Nigerian woman; a case report
Authors: Solaja Taiwo , Nwadiokwu John , Okebalama Victor , Omokore Olutomiwa , Monday Obinna , Ayeni Ayodeji , Duru Harrison , Nwudele Uchechukwu
Published: January 2024

Background: Lipo-leiomyoma accounts for about 0.03%-0.2% of uterine tumours. The aetiology of lipo-leiomyoma is unclear, with some suggesting fatty metamorphogenesis and others involving growth factors and oestrogens. Radiological evaluation and histology are necessary for definitive diagnosis. If asymptomatic, no treatment is needed, but surgical resection is performed in symptomatic patients.
Case Presentation: This was a case of a 63-year-old Nigerian woman who experienced pelvic pain and heaviness for a year, worsening pelvic pain and distension, and post-menopausal bleeding. Abdominal examinations revealed a pelvic mass, vaginal examination showed no vaginal and cervical lesions, while abdominopelvic ultrasonography (USS) unveiled a hyperechoic mass in the posterior uterus. She underwent a total abdominal hysterectomy and bilateral salpingo-oophorectomy. Histopathological assessment of the samples showed a confirmatory diagnosis of uterine lipo-leiomyoma.
Conclusion: Lipo-leiomyoma is a rare, distinct uterine pathology that should be considered a differential diagnosis in post-menopausal women with vaginal bleeding. Total abdominal hysterectomy and bilateral salpingo-oophorectomy are recommended for menopausal women with symptomatic disease to prevent recurrent anaemia and also remove possible sites of the tumour even as the patient is unlikely to conceive again. Histopathological evaluation is crucial for post-menopausal women with coexisting bleeding per vagina.
Determinants of Financial Report Moderated by Quality Audit (Study of Multi-Industry Sector Companies Listed on the Indonesia Stock Exchange Period 2015 – 2019)
Authors: Hidayati Sri , Apollo Daito
Published: January 2024

This study aims to determine the effect of good corporate governance (GCG), company reputation, and company competence on the quality of financial reports with audit quality as a moderating variable. The population in this study are manufacturing companies in the various industrial sectors listed on the Indonesia Stock Exchange in 2015 - 2019 with a total of 185 companies. The method used was purposive sampling, 37 companies were selected as the research sample. The results of the study show that Good Corporate Governance (GCG) has no direct effect on the quality of the company's financial statements. Meanwhile, company reputation and company competence have a significant and positive effect on the quality of financial reports. After being moderated by audit quality, Good Corporate Governance (GCG), company reputation, and company competence have a positive and significant effect on the quality of financial reports.
Transformational Leadership: Hard Working, Smart Working, Qualified Working, Sincere Working and Completed Work
Authors: Karsono Bambang
Published: January 2024

Transformational Leadership: Hard Working, Smart Working, Qualified Working, Sincere Working and Completed Work is a literature review article within the scope of leadership science. The purpose of this article is to build a role hypothesis between variables that will be used in further research on the concept of leadership. Research objects in online libraries, Google Scholar, Mendeley and other academic online media. The Article writing method is library research, from e-books and open access e-journals. The results: 1) Hard working plays a role in transformational leadership; 2) Smart working plays a role in transformational leadership; 3) Qualified working plays a role in transformational leadership; 4) Sincere working plays a role in transformational leadership; 5) Completed work plays a role in transformational leadership. Other factors that affect Transformational Leadership including: work culture, motivation and work environment.
Socialization of Taxation As A Moderating Variable In The Application of The Theory Of Planned Behavior To Taxpayer Compliance
Authors: Della Nanda Luthfiana  , Andika Andika , Mohamad Najmudin  , Joko Purwanto Nugroho
Published: January 2024

The tax system serves as a means for the government to generate additional revenue necessary to fulfill its obligations. The objective of this study was to examine the impact of the Theory of Planned Behavior (TPB) on taxpayer compliance in Yogyakarta, with tax socialization serving as a moderating variable. The research was conducted within the city of Yogyakarta and involved 110 taxpayer respondents. The consecutive sampling method was employed as the sampling technique, and data analysis was performed using partial least squares (PLS) analysis with SmartPLS 3.3.3 software. The findings of the study indicate that moral obligation and trust in the government do not have a significant influence on taxpayer compliance, while tax awareness demonstrates a significant effect on taxpayer compliance. However, tax socialization was unable to moderate or strengthen the impact of moral obligation, trust in the government, and tax awareness on taxpayer compliance in Yogyakarta.
Forecasting Volatility Persistence: Evidence from International Stock Markets
Authors: Enow Samuel Tabot
Published: January 2024

Volatility persistence represents a notable feature of financial markets and is a widely studied phenomenon that explores the clustering and leverage effects of stock market returns. Recognizing and incorporating volatility persistence into risk management, asset pricing, and portfolio management strategies provide valuable insights for market participants enabling them to navigate and capitalize on the dynamics of market volatility. The aim of this study was to empirically investigate whether the current high volatility in stock markets are temporal or will persist in the future. An ARCH model and a GARCH model were employed to achieve the aim of this study for the JSE, CAC 40, DAX, Nasdaq and Nikkei 225 from May 29, 2023 to May 29, 2018. The findings revealed that stock market volatility will persist at least for some time from the ARCH and GARCH output results. Active traders and market makers need to adapt their strategies in response to the expected volatility persistence. Higher levels of persistence may call for adjustments such as widening stop-loss orders to accommodate larger price swings or using more extended timeframes to capture sustained trends. Portfolio managers may also opt for strategies that thrive in volatile market conditions such as breakout trading or mean reversion strategies
The The Influence of Fiscal Policy, Monetary Policy and International Trade on Economic Growth in Indonesia (Literature Reviews)
Authors: Elhakim Luqman Elhakim , Ali Hapzi
Published: January 2024

The Literature Review article on the Influence of Fiscal Policy, Monetary Policy and International Trade on Economic Growth in Indonesia is a scientific article that aims to build a research hypothesis on the influence of variables to be used in further research, within the scope of public finance science. The way of writing this Literature Review article is the library research method, which is sourced from online media such as Google Scholar, Mendeley and other academic online media. The outcomes of this literature review study are: 1) Fiscal Policy influences Economic Growth in Indonesia; 2) Monetary Policy affects Economic Growth in Indonesia; and 3) International Trade has an effect on Economic Growth in Indonesia.
Factors Influencing Investor Responses to Earnings Related Announcements in The Pandemic Era of Covid-19
Authors: Mardinata Rusli Yohanes , Kandi Sofia Senastri Dahlan  , Eka Dian Rani  , David Harianto
Published: January 2024

This study aims to examine the Effect of Growth Opportunities on Earning Related Announcements. The effect of Debt Policy on ERC (Earnings Response Coefficient) and the effect of Company Size on ERC (Earnings Response Coefficient) is the role of the company's reputation as a moderator between the Effect of Growth Opportunities on Profit-Related Announcements. there is a role for the company's reputation as a moderator between the effect of debt policy on the ERC (Earnings Response Coefficient) and the role of the company's reputation as a moderator between the effect of company size on the ERC (Earnings Response Coefficient). by using multiple regression analysis. The researcher concludes that there is an influence of growth opportunities and corporate size on the earnings response coefficient. but the debt policy has no effect on the earnings response coefficient. then there is the role of corporate reputation as a moderator of the influence of growth opportunities and corporate size on earnings response coefficient but there is no role of corporate reputation as a moderation of the effect of debt policy on earnings response coefficient.
The Effect of Current Ratio and Receivable Turnover On Profitability (Study of PT X Financial Reports for the 2016-2021 period)
Authors: Hanifah Azimah
Published: January 2024

The aim of this research is to determine and analyze: (1) Current Ratio (2) Receivable Turnover; (3) Profitability; and (4) The influence of Current Ratio and Receivable Turnover on Profitability at PT. X Period 2016-2021, both simultaneously and partially. The research method used in this research is a descriptive survey and an explanatory survey, the unit of analysis in this research is the financial report of PT. X Period 2016-2021. The type of investigation is causality, and the time horizon in this research is time-series. Based on the research results, it was found that the Current Ratio at PT. X Period 2016-2021, apparently gave good analysis results, Receivable Turnover at PT. X The 2016-2021 period can generally be said to be good, Profitability at PT. X The 2016-2021 period is currently considered good. Current Ratio and Receivable Turnover on Profitability at PT. X Period 2016-2021 has a significant effect simultaneously or partially. However, partially Receivable Turnover predominantly influences Profitability rather than Current Ratio. Because Receivable Turnover predominantly influences Profitability, it is the first priority in increasing Profitability. then PT. X is advised to consistently improve receivables turnover, so that the company's financial performance improves.
Gen Z: Purchase Decision on Go Green Products
Authors: Humairoh Humairoh , Annas Mohammad , Rabbania Aura
Published: January 2024

This study aims to determine the effect of green brand trust and electronic word of mouth on purchasing decisions of Gen Z consumers on McDonald go green products, either partially or simultaneously. The approach used in this research is causal research. The sample consisted of 140 Gen Z respondents in the Karang Tengah Region, Tangerang City, Banten Province. The sampling technique used was purposive sampling. The data collection method was carried out using a questionnaire instrument with a Likert Summated Rating (LSR). The data analysis method was processed using SPSS Version 27. The results showed that green brand trust and electronic word of mouth had a positive and significant effect on purchasing decisions of Gen Z consumers for McDonalds go green products, both partially and simultaneously. The effect of the electronic word of the mouth variable is higher than the green brand trust variable on the purchase decision of Gen Z consumers on McDonalds go green products. Suggestions for realizing management for McDonalds marketers to increase information about McDonalds products that have gone green by holding events involving generation Z consumers in Karang Tengah, Tangerang City
The Role of Lecturers and Support of Educational Personnel and Student Understanding of Program Governance the Study Will Improve the Quality of the Study Program Services
Authors: Pamungkas R Wisnu Prio , Sinlae Fried
Published: January 2024

The role of lecturers and support from educational staff as well as student understanding in improving study program services. The location of the activity is in the Informatics Study Program, Faculty of Computer Science, Bhayangkara University. The research method used is a quantitative method with a cause and effect relationship approach with a sample of respondents from 3 independent variables and 1 dependent variable. The sampling technique uses Proportionate Stratified Random Sampling so that it can be used proportionally according to groups or strata of the population or respondents. Analysis of the role of lecturers and support from educational staff as well as students' understanding of study program governance can improve the quality of study program services and have an impact on increasing accreditation scores. Research regarding the role of 3 (three) independent variables as discussion material is still rarely discussed in Study Program Governance. So it is necessary to consider whether students' understanding of the existence of study program services can improve the quality of study program services and will have an impact on increasing the value of study program accreditation.
Implementation of Global Reporting Initiatives (GRI) Standards in Service Sector Companies
Authors: Ririn Breliastiti  , Temy Setiawan  , Tiwi Herninta  , Vivianty  , Shelvy
Published: January 2024

This research is entitled Implementation of Global Reporting Initiatives (GRI) Standards in the Service Sector Companies. Sustainability reporting, aligned with global standards like the GRI Standards, has become imperative for organizations worldwide. This study delves into the application and effectiveness of these standards in diverse sectors, specifically the financial and healthcare industries. Investigating eight companies—four from each sector—this research assesses how GRI Standards guide sustainability reporting practices. The study analyzes the extent of adherence to these standards in disclosing economic, environmental, and social topics. Employing qualitative comparative analysis, Sustainability Reports were meticulously reviewed. Findings unveiled varying degrees of GRI Standards implementation, indicating a need for heightened awareness and training, especially in specific reporting areas. The study recommends investment in training programs for organizations to enhance their grasp and application of GRI Standards. Moreover, collaboration between regulatory bodies and industry associations is vital to formulate sector-specific guidelines, ensuring consistency in sustainability reporting across diverse industries. However, it's crucial to note that the study's scope is limited to the financial and healthcare sectors, warranting further research for a broader understanding of GRI Standards implementation across industries.
A Study on the Intergovernmental Relations Theory of Japan:Review of the Current Approaches and Its Missing Chapters
Authors:   National Association of Korean Local Government Studies, Kang GwangSoo
Published: January 2024

The purpose of this study is to proceed a critical review of the main approaches to center-local relations and intergovernmental relations in Japanese local governments that have been discussed so far, and to suggest overlooked arguments that have not been discussed in these approaches.
The main contents are as follows. First, we examine the meaning of theories of intergovernmental relations in Japan. Second, we provide a perspective for analyzing the main approaches. The main analytical factors are intergovernmental intermediary route, intergovernmental administrative resources, and explanatory variables of intergovernmental relations. Third, based on this analytical perspective, we analyze the main approaches on intergovernmental relations in Japan and those characteristics. The main characteristics of current approaches tend to emphasize the administrative route, law-finance resources, the institution as an explanatory variable, and the degree of control of the central government. Fourth. we analyze the form of central government intervention, autonomy from the socioeconomic environment and autonomy from the central government, movability and exit option, and the size of the local government in terms of the exclusively focused on intergovernmental relations in Japan.
A Study on the Improvement of Policy Support Officer System of Local Council
Authors:   National Association of Korean Local Government Studies, Son GyeongHee
Published: January 2024

With the complete revision of the Local Autonomy Act, a policy support control system was introduced along with the independence of the personnel rights of the local council. In order to examine the operation status of the policy support officer system, which plays an important role in supporting local council legislative activities, and to find ways to establish the system, an importance-satisfaction survey was conducted around major issues to derive improvement tasks. Major improvement tasks include the expertise of policy support officers, the division of local council officer and policy support officers, the selection of policy support officers, education and training of policy support officers, evaluation of policy support officers, and making regulation of policy support officers. Focusing on these tasks, it proposes selection, educational training, placement, performance evaluation, and making regulations to enhance the expertise of policy support officers.
Propuesta de modelo conceptual de crecimiento y producción de Saxitoxina por Planktothrix Agardhii y su presencia en la Laguna de Zumpango, Estado de México
Authors: Luna Pabello Victor Manuel , Rodríguez Guerrero Luis Antonio , Hernández Gómez Luciano , Magaña Melgoza Pedro Alejandro de Jesús
Published: January 2024

La presencia de florecimientos de cianobacterias productoras de saxitoxina (STX) en cuerpos epicontinentales eutroficados constituye un riesgo tanto para la salud humana, como para la biota asociada al mismo. La Laguna de Zumpango es un cuerpo acuático importante para el Valle de México en la cual se ha observado la presencia de Planktothrix y STX. El objetivo de este trabajo fue proponer un modelo conceptual de crecimiento y producción de STX por Planktothrix agardhii, que permita prevenir un escenario de producción de altas cantidades de STX en la Laguna de Zumpango. El modelo propuesto se elaboró a partir del desarrollo del marco conceptual; la abstracción y descripción formal del sistema de interés; la aplicación del análisis de sistemas y la representación diagramática del modelo. De acuerdo con el análisis de la información bibliográfica, un posible escenario en el que pude ocurrir la producción de STX que representaría un riesgo para la salud humana o para las especies acuáticas presentes, es durante la temporada de lluvias y el inicio de temporada de frío, con baja presencia de nitratos, densidad promedio de flujo fotones 100 µfotones m-2s-1 y cuando los florecimientos de cianobacterias tengan presente a P. agardhii.
Evaluación de los aprendizajes en la Educación a Distancia desde la experiencia de la Universidad Nacional Experimental de las Telecomunicaciones e Informática
Authors: Marín-Flores María del Carmen
Published: January 2024

La Universidad Nacional Experimental de las Telecomunicaciones e Informática (UNETI) busca la formación de profesionales y técnicos de calidad, emprendedores, capaces de responder asertivamente ante los retos del mundo globalizado, en las áreas de la informática y las telecomunicaciones, con un posicionamiento ético en la resolución de problemas, amante de su Patria y su acervo cultural. Para alcanzar este propósito, la universidad ha desarrollado su gestión a través de plataformas educativas en línea y recursos digitales para la formación, además de alianzas estratégicas con instituciones rectoras en estas áreas, para el desarrollo de las prácticas profesionales. A partir de un diseño curricular sociocrítico, se han creado una serie de estrategias de enseñanza y aprendizaje adaptadas a la virtualidad, así como la evaluación que permita evidenciar los aprendizajes alcanzados. En este artículo se expondrán y analizarán las estrategias de evaluación más utilizadas por la UNETI, así como algunas recomendaciones para la aplicación de procesos evaluativos bajo esta modalidad.
El uso de la Radio y los formatos radiales como complemento de la Educación a Distancia
Authors: Sánchez España Pedro Luís
Published: January 2024

La Radio, lejos de perder vigencia, se reinventa permanentemente. Además de las transmisiones habituales por las ondas AM y FM, se suman las transmisiones en vivo o diferido vía streaming por internet que, combinadas con las redes sociales, ofrecen una comunicación multidireccional entre el emisor y la audiencia. El formato de programa radial ahora representado en los podcasts, puede ser escuchado en diferido en la web, o incluso descargarlos. Este escenario es ideal para desarrollar el potencial educativo de la Radio, con la producción de recursos didácticos en formatos de audio para diferentes entornos virtuales de aprendizaje, por lo que, en el presente artículo, se muestra una experiencia de formación integral en producción radial, dirigida a docentes universitarios y bajo la modalidad a distancia. A través de programas radiales se enseñan diferentes contenidos relacionados a la producción radial, donde la entrega final es la producción de un programa piloto educativo.
Uso de la Inteligencia Artificial y el Metaverso: Optimización de estrategias para la aplicación de la Nuevas Tecnologías en diversas áreas del conocimiento
Authors: Galíndez Pérez Jorge Luís
Published: January 2024

La convergencia de la Inteligencia Artificial (IA) y el Metaverso (Meta) abre oportunidades sin precedentes para la educación y el aprendizaje. Sin embargo, esta integración plantea importantes desafíos éticos, culturales y pedagógicos. Este artículo analiza tres perspectivas clave sobre el uso de la Inteligencia Artificial y el Metaverso en la educación, basadas en: "The Sentient Machine" escrito por Amir Husain; "Experience on Demand" desarrollado por Jeremy Bailenson; y "Teaching Machines" generado por Audrey Watters. Tomando como punto de partida la comparación y el contraste de estas tres visiones, se consideran las cuestiones involucradas de la manera más lateral posible, abordando las dimensiones ontológicas, axiológicas, etnográficas y epistemológicas de esta convergencia tecnológica. Se argumenta que si bien la IA y el Metaverso ofrecen un enorme potencial para la optimización de estrategias educativas, se requiere un enfoque holístico e inclusivo para materializar estos beneficios y evitar una profundización de la brecha digital. El concepto de "Salto Digital" se propone como una hoja de ruta para garantizar un desarrollo ético, equitativo y socialmente responsable de la educación mediada por IA y el Metaverso.
Catheter ablation of supraventricular tachycardia and atrial flutter with no or minimal use of fluoroscopy: the initial experience of a single Bulgarian center
Authors: Marchov D. , Marinov M. , Boychev D. , Martinov E. , Kamenov P. , Gelev V. , Traykov V.
Published: January 2024

Introduction: Catheter ablation (CA) is an established therapy for most arrhythmias. Non-ﬂ uoroscopic three-dimensional (3D) electroanatomic mapping systems allow ablation of supraventricular tachycardia (SVT) and atrial ﬂ utter (AFL) with zero or near-zero ﬂ uoroscopy (ZF/NZF). The current study aims to report our initial experience with ZF/NZF in SVT or AFL CA. Material and methods: We conducted a single-center prospective registry enrolling consecutive patients referred for CA of SVT or AFL. ZF/NZF CA was attempted in all patients using a commercially available 3D mapping system. Fluoroscopy use was allowed at any point of the procedure. Procedural characteristics and long-term outcome were analyzed. The learning curve effect was also studied. Results: Sixty-three patients (age 53.5 ± 14.1, 57% males) with SVT or AFL were enrolled. According to arrhythmia type typical AVNRT was diagnosed in 36 (57.1%) cases, right atrial ﬂ utter in 25 (39.7%) cases, left-sided accessory pathway in 1 (1.6%) and focal right atrial tachycardia in 1 (1.6%) case. Three patients (4.8%) had two arrhythmia substrates. The procedure was performed with ZF in 49/63 cases (77.8%), while NZF was necessary in 14 (22.2%) patients with a ﬂ uoroscopy time of 220 ± 169 sec and a dose-area product of 7556 ± 5886 mGy*cm2. Median procedural time was 88 (IQR 25-75 percentile 71.5-116) min with 22 (IQR 25-75 percentile 16-31) min of mapping time. Acute procedural success was accomplished in all patients with no periprocedural complications. Over a follow-up of 12 ± 3 months, all patients remained arrhythmia-free. There was a learning curve effect with a signiﬁ cant reduction of procedural time (P = 0.025) and a signiﬁ cant difference (P = 0.019) in the rate of ﬂ uoroscopy use among different periods of the study duration. Conclusion: ZF/NZF CA of SVT and AFL is associated with high efﬁ cacy and safety. Entirely ﬂ uoroless CA can be performed in the vast majority of patients. It is a feasible approach associated with a detectable learning curve effect. 