bluuebunny/crossref_metadata_2025 huggingface dataset:
PARAMETER MARSHALL DAN KOEFISIEN PERMEABILITAS CAMPURAN FLY ASH DAN ABU SEKAM PADA ASPAL GEOPORI
Authors: TAmelia Tasya , Indrayani Indrayani . , Kosim Kosim , Amalia Tata
Published: January 2025

Penggunaan aspal geopori menjadi alternatif ramah lingkungan karena pembuatannya memanfaatkan limbah serta dalam pengaplikasiannya dapat membantu peresapan air ke dalam tanah. Limbah yang digunakan dalam pembuatan aspal geopori pada penelitian ini adalah fly ash (FA) dan abu sekam padi (AS). Fly ash memiliki sifat pozzolan, dan abu sekam mengandung unsur karbon (C) dan silika yang berfungsi sebagai perekat. Penggunaan aspal geopori pada bahu jalan dapat menjadi alternatif dalam penyerapan air yang lebih cepat tanpa merusak lapisan perkerasan yang ada di bawahnya. Tujuan penelitian ini adalah untuk mendapatkan variasi campuran antara FA dan AS sebagai filler untuk mendapatkan variasi campuran optimal dalam pembuatan aspal geopori. Perbandingan campuran filler dalam pembuatan benda uji dengan variasi campuran FA dan AS menggunakan metode substitusi filler pada pembuatan aspal normal, yaitu semen. Pada variasi kadar campuran aspal normal, semen yang digunakan sebanyak 2%  dari berat aspal disubtitusikan dengan campuran FA dan AS untuk pembuatan benda uji aspal geopori dengan variasi kadar campuran filler. Penelitian ini menggunakan aspal penetrasi 60/70 dengan hasil kadar aspal optimum (KAO) sebesar 4,6%. Dari hasil pengujian didapatkan bahwa variasi kadar campuran yang paling optimum adalah pada campuran 100% AS : 0% FA dengan nilai stabilitas sebesar 729,556 kg, nilai flow 5,37 mm, nilai VIM (Void In the Mix) 20,86%, Marshall Quotient (MQ) 135,82 kg/mm, dan nilai koefisien permeabilitas 0,447 cm/det. Nilai parameter Marshall dan nilai koefisien permeabilitas memenuhi spesifikasi AAPA 2004, yaitu stabilitas 500 kg, nilai flow 2-6 mm, nilai VIM 18-25%, MQ 400 kg/mm, dan koefisien permeabilitas 0,1-0,5 cm/det.
Spatial collision avoidance for Quadrotors
Authors:   CINVESTAV, México, Rodríguez-Cortés Hugo , Trujillo-Flores Miguel ,   Instituto Tecnológico Autónomo de México, México, Martínez-Ramírez Marco A. ,   CINVESTAV, México, Romero José-Guadalupe ,   Instituto Tecnológico Autónomo de México, México
Published: January 2025

This article presents an algorithm for robust trajectory tracking and a three-dimensional collision avoidance strategy for perturbed quadrotors operating in the same airspace. When activated, the avoidance strategy forms a three-dimensional repulsive vector field around each vehicle. A control law, based on the direction of the vector field, ensures collision avoidance. The robust control law for trajectory tracking compensates for constant unknown disturbances. The trajectory tracking and collision avoidance strategies are then practically validated, demonstrating their real-world applicability.
Towards a digital twin for cooperative load transportation involving multiple multirotor drones
Authors:   Instituto Nacional de Astrofísica, México, Namigtle-Jimenez Alfredo , Susbielle Pierre ,   Université Grenoble Alpes, Francia, Guerrero-Castellanos J. Fermi ,   Benemérita Universidad Autónoma de Puebla, México, Marchand Nicolas ,   Université Grenoble Alpes, Francia, Mendoza-Robles Natalio ,   Benemérita Universidad Autónoma de Puebla, México, Durand Sylvain ,   Universidad de Estrasburgo, Francia, Diaz-Tellez Juan ,   Benemérita Universidad Autónoma de Puebla, México, Enriquez-Caldera Rogerio ,   Instituto Nacional de Astrofísica, Óptica y Electrónica, México
Published: January 2025

By merging digital twin strategies with cooperative multirotor drone systems for load transportation, we are expanding the boundaries of autonomous logistics. This paper delves into the intricacies of modeling and controlling multiple drones in a collaborative setting, with the ultimate goal of developing digital twins that can facilitate comprehensive simulation, analysis, and optimization of drone operations. The paper introduces a well-known control strategy to demonstrate how n agents can transport a point mass load or a rigid body load, considering the center of mass of the load. The i-th agent is assumed to have knowledge of the states of neighboring j-th agents. Newton’s formalism with quaternion parameterization has been used to model the agents along with the load.
Time delay in oscillators communication: implications for arrhythmias in a cardiac model
Authors:   Universidad Nacional Autónoma de México, México, Flores Pérez Anahi , Aguilar Lara Alexa Patricia ,   Universidad Nacional Autónoma de México, México, Vázquez-Espinosa Ximena ,   Universidad Nacional Autónoma de México, México, González-Olvera Marcos A. ,   Universidad Nacional Autónoma de México, México
Published: January 2025

In this study, a cardiac model based on the discretized Barrio-Varea-Arag´on-Maini (BVAM) model is investigated. The model is modified to include time delays that represent the non immediate communication between the natural cardiac pacemakers. The objective is to understand how the introduction of this delay can affect the system’s dynamics and its relationship with the onset of cardiac arrhythmias. By using dynamic analysis techniques the presence of chaos is analyzed, as well as its impact on the system’s stability. Our results conclude that the introduction of a time delay can induce nonlinear and chaotic behaviors which are known to have a close relationship with critical arrhythmias. This study contributes to the advancement of knowledge in cardiac physiology and highlights the importance of considering nonlinear dynamics in the investigation of cardiac disorders such as arrhythmias.
Blood Glucose Regulation with Hypoglycemic Avoidance: An Interval-Predictor Approach
Authors:   Tecnológico Nacional de México, La Laguna, México, Ríos Héctor , Mera Manuel ,   Instituto Politécnico Nacional, México, Ferreira de Loza Alejandra ,   Instituto Politécnico Nacional, México
Published: January 2025

The manuscript is devoted to blood glucose regulation in type 1 diabetic patients using a robust switching control. The controller relies on an interval–based predictor that estimates the state considering estate and input constraints. The proposed controller can deal with the uncertainties in the patient parameters and external perturbations such as unannounced food intake. The closed–loop stability analysis relies on the Lyapunov function approach. The blood glucose is stabilized around the desired value while the state and control trajectories remain within the desired constraints. The feasibility of the approach was validated in simulations using a cohort of four adult patients.
Comparison of Three Metaheuristics for Leak Diagnosis in Water Distribution Networks
Authors:   Tecnológico Nacional de México, Tuxtla Gutiérrez, México, De los Santos Ruiz Ildeberto , Sánchez Mejía Luis Adán ,   Tecnológico Nacional de México, Tuxtla Gutiérrez, México, Gómez-Peñate Samuel ,   Tecnológico Nacional de México, Tuxtla Gutiérrez, México, Gómez Coronel Leonardo ,   Instituto de Robótica e Informática Industrial, México
Published: January 2025

This article presents a comparison between three different metaheuristic methods: the genetic algorithm (GA), the simulated annealing (SA), and the particle swarm optimization (PSO) in an experimental setup for leak diagnosis in a water distribution network. First a detection stage estimates the value of the flow-rate residual between the input and the output of the water distribution network until it exceeds a preestablished threshold value. The estimated value of the leak is analyzed during a previous time window and when its value is stable around a constant value a detection alert is emitted. Then, an optimization algorithm is implemented. A cost function with two search variables (location and magnitude of the leak) is then defined. The optimization of the cost function is performed using the three metaheuristic methods. Finally, results using experimental data are presented: the computing time of each metaheuristic method, the estimated leaked outflow and the success/failure rate for each method.
Fractional Order Transfer Function for Modeling an Electrohydraulic System
Authors:   Universidad de Guanajuato, México, Torres del Carmen Felipe de Jesús , Robles Sauceda Edgar Hiram ,   Universidad de Guanajuato, México, Balvantín García Antonio de Jesús ,   Universidad de Guanajuato, México, Martínez Ramírez Israel ,   Universidad de Guanajuato, México, López Adolfo Rafael ,   Instituto Tecnológico Superior de Irapuato, México, Ramos Negron Oscar Jaime ,   Instituto Tecnológico Superior de Las Choapas, México
Published: January 2025

This paper presents the analysis and synthesis of the fractional-order model of an electrohydraulic system expressed by fractional-order transfer functions of the servo valve and the double-acting cylinder by applying Caputo’s definition. From the analysis of the differential equations of the system dynamics, it is possible to obtain the fractional order expression that relates the output signal with respect to the input signal, of each of the analyzed elements. Then, these transfer functions are put in a block diagram to perform numerical simulations that allow comparing the performance of the proposed approach with respect to the modeling given in integer order. The results of the simulations have shown that the variation of the fractional exponent can reduce the settling time and rise time of the system response to a step input, however, it also shows the need to correctly understand the physical operation of the system to avoid a performance that does not correspond to real scenarios.
Implementation of the digital twin of an interconnected atmospheric tank process
Authors:   Universidad Nacional Autónoma de México, México, Mujica-Ortega Hoover , García-Santamaría Miguel ,   Universidad Nacional Autónoma de México, México, Avilés Jesús David ,   Universidad Autónoma de Baja California, México
Published: January 2025

This article presents the implementation of the digital twin of a process of interconnected atmospheric tanks, the parametric design was implemented with the help of software intended for computer-aided design based on the information provided by the manufacturer’s sheets and performing reverse engineering. A mathematical model is proposed using non-linear differential equations implemented in Matlab simulink, which reflects the fluid dynamics within the hydraulic plant reacting to disturbances generated by the control elements in real time. The digital twin was evaluated by executing different tank filling and emptying scenarios whose results were compared with tests in the physical plant, obtaining a good approximation of the results and ensuring that the mathematical model reacts to disturbances generated by the control elements in real time. By integrating the information obtained from the mathematical model with the 3D parametric model we obtain a software tool that is centralized, efficient and reproducible in which operators can experiment and accelerate the acquisition of knowledge as well as identify and classify control optimization opportunities of the studied process, emphasizing the fact of supporting decisionmaking without wasting valuable resources.
Integral sliding mode controller with disturbance estimator for trajectory tracking in a class of electromechanical systems
Authors:   Universidad Autónoma de Baja California, México, Rascón C. Raúl , Valenzuela Hanon Víctor Manuel ,   Universidad Autónoma de Baja California, México, Colado Basilio Francisco Javier ,   Universidad Autónoma de Baja California, México, Moreno Ahedo Luis Omar ,   Universidad Autónoma de Baja California, México, Moreno-Valenzuela Javier ,   Instituto Politécnico Nacional, México
Published: January 2025

In this work, an alternative is proposed to solve the control problem for trajectory tracking, mainly applied to direct current motors. A discontinuous sliding mode controller is designed that is insensitive to parametric uncertainty and external disturbances, as long as certain conditions are met to avoid the reachability stage. On the other hand, a disturbance estimator is presented which is easy to implement and helps us to decrease the amplitude of the gain of the discontinuous term of the controller. Numerical simulations support the theoretical results, demonstrating a good performance of the proposed controller.
First order SMC in the presence of uncertain control coefficient for a class of LTI systems
Authors:   Universidad Nacional Autónoma de México, México, Estrada Manuel A. , Resendiz Quintanar Areli ,   Universidad Nacional Autónoma de México, México, Fridman Leonid M. ,   Universidad Nacional Autónoma de México, México
Published: January 2025

This paper analyzes the problem of the “unmatched” uncertain control coefficient in a class of linear systems. Sufficient conditions are determined to ensure the stability of the dynamics during the sliding mode. This communication states that it is possible to design first-order SMC when the direction in the control vector is unknown. Finally, the feasibility of the results is shown through simulations in a fin-controlled rocket model.
Finite-time controller for robot bilateral teleoperation
Authors:   Universidad de Guadalajara, México, Aldana Carlos I. , Torres Orozco Lazaro Fabricio ,   Universidad de Guadalajara, México, Nuño Emmanuel ,   Universidad de Guadalajara, México, Cruz-Zavala Emmanuel ,   Universidad de Guadalajara, México
Published: January 2025

In this paper, a modification of the classical proportional plus damping injection control scheme is proposed to solve the bilateral teleoperation problem in finite-time for fully actuated Euler-Lagrange systems in the joint space. In order to prove finite-time convergence, the controller is designed to provide global asymptotic stability and then, by properly designing the control parameters, the closed-loop system is proved to admit a homogeneous approximation of negative degree. Simulation results with a teleoperation system composed of two robots with six degrees of freedom are given to show the effectiveness of the proposed scheme.
Circuit implementation and optimisation for current-mode control of DC-DC converters using the lead-lag control technique
Authors:   Universidad Autónoma de Campeche, México, Méndez Monroy Paul Erick , May Tzuc Oscar de Jesus ,   Universidad Autónoma de Campeche, México, Peña-López Gerardo ,   Universidad Politécnica de Yucatán, México, Benítez-Pérez Héctor ,   Universidad Autónoma de México, México
Published: January 2025

In this paper, we present a proposed toolbox designed to calculate the tuning parameters of the current-mode lead-lag phase controller of a boost converter. This toolbox uses user-supplied specifications, such as electronic components, operating values, and step response parameters. Unlike heuristic or numerical optimization techniques, the tuning methodology offers a unique solution for tuning the controller parameters, which is simple to automate. In addition, the toolbox provides simulations and reports on controller tuning parameters. It alsopresents graphs of the step response, Bode diagram, and control signal. This toolbox stands out due to its validation through implementation on an analog design development board for didactic purposes. In this way, it proves to be a valuable tool for teaching and learning in the field of power electronics and classical control systems.
Modeling and control of a half-bridge single-phase Back-to-back converter for grid-tied applications
Authors:   Universidad Autónoma de San Luis Potosí, México, Miranda–Vidales Homero , González García Mario Arturo ,   Universidad Autónoma de San Luis Potosí, México, Cárdenas Víctor ,   Universidad Autónoma de San Luis Potosí, México, Alvarez-Salas Ricardo ,   Universidad Autónoma de San Luis Potosí, México, Rivera Ana ,   Universidad Autónoma de San Luis Potosí, México
Published: January 2025

In this paper, an alternative use of a single-phase reduced active front-end as LVDC point-to-point transmission is modeled and used as a power stage for grid-tied applications. An alternative to direct power control (DPC) is used to improve the transfer of active power between LVAC grids and microgrids. The aim is to define active power and reactive power as state variables is to simplify a control law based on a passivity-based approach. Simulations are carried out to show the effectiveness of the proposed research.
Optimal investment in a market with borrowing, quadratic-affine interest rates, and Heston stochastic volatility
Authors:   University of Liverpool, Reino Unido, Alasmi Nuha , Gashi Bujar ,   University of Liverpool, Reino Unido
Published: January 2025

We consider the problem of optimal investment in an incomplete market with borrowing, random and possibly unbounded coefficients, and the power utility from terminal wealth. We use the Heston model for stochastic volatility, and the quadratic-affine model for interest rates. The resulting problem is an example of optimal stochastic control problem with a nonlinear system dynamics which is due to borrowing, the square-root non-linearity of Heston model, and the quadratic non-linearity of the interest rates. Explicit closed-form solution is obtained by a certain piece-wise completion of squares method. The resulting optimal control law is of linear state-feedback form the gain of which can be in up to three different regimes.
Dynamical Analysis of a DC-DC Step-Down Converter Used As Interface with an Electrolyzer to Generate Green Hydrogen
Authors:   Universidad Politécnica de San Luis Potosí, México, Ortiz-Lopez Ma. Guadalupe , Leyva-Ramos Jesús ,   Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, México, Diaz-Saldierna Luis Humberto ,   Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, México
Published: January 2025

Hydrogen is currently the most proposed element to replace fossil fuels in processes that require high heat power because it does not produce greenhouse gases in its combustion, so its production is based on the electrolysis of water using renewable sources of DC electrical energy. This work uses a quadratic buck converter to interconnect a DC source and electrolyzer, which requires feeding it with a regulated voltage. A combined model of the converter with the equivalent dynamic electrical circuit of the electrolyzer is proposed. Linear switching and linear average state space models are developed. The dynamic behavior of this model is compared with that resulting from using the static representation of the electrolyzer through simulation in Matlab software.
Modelling and control of a 600 W aerogenerator
Authors:   Universidad Autónoma de Nuevo León, México, Galindo Orozco René , Gomez Ocon Adrian Isaac ,   Universidad Autónoma de Nuevo León, México
Published: January 2025

A small 600 W aerogenerator operating in isolated mode is considered, under bounded wind and load changes. A model of its wind turbine is proposed, and a control system is designed that operates under low and medium winds. The control system consists of a proportional derivative controller with current compensation, designed for the non-linear averaging model of the boost converter of the aerogenerator, that guarantees stability in the Lyapunov sense and ensures that the current supplied to the load follows a specified current reference. The current reference is generated by a gradient descent maximum power point tracking algorithm.
Lyapunov Stability Criterion Applied to a Interconnected Power Converter/Photovoltaic Panel System
Authors:   Universidad Panamericana, México, Ruiz-Martínez Omar-Fernando , Lopez-Cruz Jose Manuel ,   Tecnológico Nacional de México; México
Published: January 2025

Power electronic converters have been widely used in conjunction with a control law to maintain a regulated supply in the face of input or output disturbances. Although the control law stabilizes the converter at an operating point, stability conditions when there are supply variable sources to the converter have not yet been sufficiently explored. In this work, stability conditions are analyzed under the Lyapunov criterion of a system made up of a photovoltaic panel and a conventional Boost converter. The state space equations of the converter are coupled to a dynamic equation of the panel that arises considering the charging dynamics of a capacitor on the input bus. The resulting system of equations (averaged state space) is analyzed using Lyapunov stability criteria and the dynamics of each state variable are graphed. The methodology presented in this work can be applied to systems with other converters and another order.
Control of delayed systems with two unstable poles using a multi-predictor based strategy
Authors:   Escuela Superior de Ingeniería Mecánica y Eléctrica, México, Sixto-Santamaria Estefany , Barragán Bonilla Luis Alberto ,   Escuela Superior de Ingeniería Mecánica y Eléctrica, México, Márquez-Rubio J. Francisco ,   Escuela Superior de Ingeniería Mecánica y Eléctrica, México, Del Muro Cuéllar Basilio ,   Escuela Superior de Ingeniería Mecánica y Eléctrica, México, Hernández Pérez Miguel Angel ,   Universidad Veracruzana, México
Published: January 2025

The stability analysis of linear systems with time delay is difficult because the delay term appears in the characteristic equation when closing the loop inducing an infinite order system. In this work a strategy based on a multi-predictor for linear delayed systems with two unstable poles is proposed. This strategy allows to estimate the system signal before been delayed in order to use it in the control stage. The great advantage of the multi-predictor is that it can be used for this type of systems with any delay size. Also, the necessary and sufficient stability conditions for the multi-predictor scheme are obtained and the minimum number of sub-predictors necessary to have an adequate estimation of the signal is determined. Finally, to show the effectiveness of the proposed strategy, a simulation example is presented.
Application of the ADRC Tunned with the Attractive Ellipsoid Approach for Continuous Bioreactors
Authors:   CINVESTAV, México, Reza Víctor , Torres-Muñoz Jorge A. ,   CINVESTAV, México, Guerrero Jesús ,   Tecnológico Nacional de México, México
Published: January 2025

The control of continuous bioreactors is essential for many bioprocesses. However, it is challenging to design and analyze controllers in a closed loop with a bioreactor due to the presence of uncertainties, external disturbances, and highly nonlinear and complex unknown dynamics. In this work, an active disturbance rejection controller is designed and analyzed for continuous bioreactors. For this task, the attractive ellipsoid approach is applied to analyze and tune the proposed controller based on an observer in a closed loop with the bioreactor’s nonlinear dynamic. Finally, the proposed algorithm is tested in a second-order continuous bioreactor simulation.
Sampled Robust Control for Constrained Unicycle Mobile Robots
Authors:   Tecnológico Nacional de México, La Laguna, México, Ríos Héctor , Gutiérrez Ariana ,   Tecnológico Nacional de México, La Laguna, México, Mera Manuel ,   Instituto Politécnico Nacional, México, Efimov Denis ,   Université de Lille, Francia, Ushirobira Rosane ,   Université de Lille, Francia
Published: January 2025

The aim of this paper is to design a sampled robust controller for the trajectory tracking problem in constrained unicycle mobile robots. The proposed swithched controller is composed by an aperiodic control law and a periodic control law. The aperiodic control consists on an state–feedback–based event–triggered control wich is designed by means of the attractive ellipsoid method and the barrier Lyapunov function. The periodic sampled control part is designed taking into account a maximum sampling time. A safe set where the state constraints are not violated, and a switching set that determines the region where each part of the controller is active are provided. The proposed strategy guarantees the input–to–state stability of the tracking error dynamics with respect to external disturbances. The feasibility of the proposed approach is demonstrated through simulation results.
Tuning of a Fractional-Order PID Controllers for Differential Two-Wheeled Mobile Robot Using Particle Swarm Optimization
Authors:   Universidad Autónoma de la Ciudad de México, México, González-Olvera Marcos A. , Martínez-Vásquez Elías ,   Universidad Autónoma de la Ciudad de México, México
Published: January 2025

This paper presents a practical methodology for tuning a fractional-order PID (FOPID) controller applied to a two-wheeled differential mobile robot. Using the robot’s kinematic model and the particle swarm optimization (PSO) method, the goal is to improve the system’s control precision and stability. Numerical results show that the FOPID controller, compared to its integer-order PID counterpart, offers greater flexibility in parameter tuning and better trajectory tracking performance, achieving a reduction in error. However, challenges related to the FOPID implementation, such as higher computational demand, are also discussed. Future work includes the experimental validation of the results on a physical platform, allowing for the evaluation of the controller’s performance under real-world conditions.
Pengaruh Brand Trust dan Personal Selling terhadap Keputusan Menjadi Anggota BMT Itqan
Authors: Khoerunnisa Khoerunnisa , Komalasari Yunika , Yuliyana Wulan
Published: January 2025

Koperasi Syariah BMT Itqan Kota Bandung is an Islamic savings and loan cooperative that provides Sharia-based financing services. However, the cooperative faces challenges in increasing its membership. This study aims to analyze the influence of brand trust and personal selling on the decision to become a member of Koperasi Syariah BMT Itqan Kota Bandung. The research employs a quantitative method with a descriptive-verificative approach. The sampling technique used is non-probability sampling with a purposive sampling approach, involving 100 active cooperative members as respondents. Data were collected using a structured questionnaire and analyzed using SPSS version 26. The results indicate that brand trust and personal selling have a positive and significant influence on the decision to become a cooperative member, both simultaneously and partially. This study provides recommendations for Koperasi Syariah BMT Itqan to enhance brand trust and the quality of personal selling interactions to attract more new members.
An Analysis on Same-Sex Relationships and Cultural Views: A Study of Wukari Metropolis
Authors: Fadahunsi John A. , Orume A. K , Stephen Mathew
Published: January 2025

This study investigated the effect of same sex relationship on cultural lives of people in Wukari Metropolis. The objective of the study was to identify the common practices of same sex relationship, examine the attitudes of people in Wukari Metropolis towards same-sex relationship and determine the likely effects of same sex relationship among the residents of Wukari Metropolis. The research design adopted for the study was descriptive research design while the sample size for the study was 400 respondents which were selected through the aid of simple random sampling. Data for the study was collected through the use of structured questionnaire and oral interview. Data gathered from the questionnaire was analyzed through the use of mean, while interview responses from the study was analyzed through the use of content analysis. Findings from the study revealed that lesbianism and bisexualism are the most common form of same sex relationship in Wukari Metropolis. Further findings revealed that there is a strong rejection of same-sex relationships, with limited support or tolerance within the Wukari community. Also, further findings from the revealed that same-sex relationships have a significant effect on the cultural and social lives of people in Wukari Metropolis.
Teori Progresif Jhon Dewey Relevansinya terhadap Pendidikan Moral P5 di SMP Muhammadiyah 7 Surakarta
Authors: Pakpahan Akbar Waliyuddin , Anugrah Abror Dikna , Faizal Ihsan , Fauzi Ahmad , Ali Mohamad
Published: January 2025

This study aims to analyze the application of the learning by doing principle in Moral Education based on the Pancasila Student Profile (P5) at SMP Muhammadiyah 7 Surakarta and to identify factors influencing its success or challenges in implementation. A descriptive qualitative approach was employed, involving students, teachers, and parents as research subjects. Data collection techniques included in-depth interviews, participatory observation, and document analysis. Data were thematically analyzed to identify key themes related to strengthening students' moral values through experiential learning activities. The findings reveal that the learning by doing principle in P5 is implemented through activities integrating Islamic values and real-life practices, such as social actions and environment-based learning. However, several challenges were identified, including time constraints, students' limited understanding of moral concepts, and a lack of parental involvement. The study concludes that the learning by doing principle holds significant potential in enhancing students' moral values but requires stronger collaboration between teachers, students, and parents to ensure more effective implementation. These findings contribute to the development of experiential-based moral education in Islamic school settings.
Application of Integrated Logistics Networks in Improving the Efficiency of Distribution and Delivery of Goods in Indonesia a Literature Review
Authors: Judijanto Loso , Asniar Nunut , Kushariyadi Kushariyadi , Utami Eva Yuniarti , Telaumbanua Eliagus
Published: January 2025

This research delves into the implementation of integrated logistics networks in Indonesia, a nation marked by its archipelagic geography and diverse logistical challenges. Through a systematic literature review, empirical case studies, and rigorous research methods, the study unravels the intricate dynamics of challenges, strategies, benefits, and drawbacks associated with integrating logistics networks. The identified challenges encompass infrastructural inadequacies, regulatory complexities, and technological barriers, while strategies focus on public-private partnerships, technological integration, and workforce capacity building. The potential benefits of integrated networks, including cost reduction and improved customer satisfaction, are balanced against drawbacks such as initial implementation costs and technological risks. Real-world case studies provide tangible examples of successful and unsuccessful implementations, offering practical insights for stakeholders. The synthesis of findings underscores the interconnected nature of these elements and provides recommendations for policymakers, industry practitioners, and avenues for future research. This research contributes to a nuanced understanding of the logistics landscape in Indonesia, guiding stakeholders in navigating challenges and optimizing the efficiency of distribution and delivery networks.
The Effect of Regional Financial Networks on Banking System Stability in Indonesia: A Literature Review of Linkages, Risks, and Impacts in a Macroeconomic Context
Authors: Judijanto Loso , Utami Eva Yuniarti , Sudarmanto Eko , Erliyana Nova , Said Saida
Published: January 2025

This research conducts a comprehensive literature analysis to explore the linkages, risks, and impacts of regional financial networks on banking system stability in Indonesia within the broader macroeconomic context. The systematic review synthesizes findings from diverse studies, examining both positive and negative dynamics associated with regional financial integration. Positive linkages include enhanced risk-sharing mechanisms and improved access to financial resources, while negative linkages encompass susceptibility to contagion effects and systemic risks. The associated risks, such as credit, market, and operational risks, are identified and discussed. Additionally, the research delves into the multifaceted impacts of regional financial networks on economic growth, financial inclusion, and the resilience of Indonesia's banking sector to external shocks. The synthesis of these findings provides valuable insights for policymakers, financial institutions, and researchers to navigate the challenges and leverage opportunities presented by regional financial networks.
The Effect of Entrepreneurship Education and Government Support on Start-Up Growth in Bogor
Authors: Septino Ruby Galuh
Published: January 2025

This study investigates the effect of entrepreneurship education and government support on the growth of start-up businesses in Bogor, Indonesia. Using a quantitative research design, data was collected from 50 start-up entrepreneurs through a structured questionnaire and analyzed using SPSS version 25. The results reveal that both entrepreneurship education and government support have a positive and significant impact on start-up growth. Entrepreneurship education, in particular, plays a more prominent role in fostering business growth by equipping entrepreneurs with the necessary skills and knowledge to manage and expand their ventures. Government support, while significant, offers external resources that complement the internal capabilities developed through education. These findings highlight the importance of an integrated approach, where educational programs and government policies work together to support start-up development. The study concludes with recommendations for enhancing entrepreneurship education and optimizing government support to promote start-up growth in emerging markets.
The Effect of Financial Planning, Sustainable Investment, and Risk Management on Business Sustainability in the SME Sector
Authors: Samiun Aspiati A. , Sudarmanto Eko , Gilaa Thitus , Majid Jamaluddin , Purwanto Purwanto
Published: January 2025

This study examines the effect of financial planning, sustainable investment, and risk management on business sustainability within the SME sector. A quantitative approach was employed, utilizing a sample of 80 SMEs and data collected through structured questionnaires. The responses were measured using a 5-point Likert scale, and the data were analyzed using SPSS version 25. The results indicate that financial planning, sustainable investment, and risk management all have a significant positive impact on business sustainability. The findings suggest that SMEs that adopt comprehensive financial planning, integrate ESG factors into their investment decisions, and implement robust risk management strategies are better positioned to achieve long-term sustainability. This research provides practical insights for SME owners, managers, and policymakers to enhance resilience and ensure business growth in a competitive environment.
PENGARUH PERMAINAN TRADISIONAL TERHADAP KEMAMPUAN MOTORIK KASAR ANAK KELOMPOK B DI TK DIPONEGORO ASAM JAWA
Authors: Soybatul Aslamiah Ritonga  , Ade Irmayani Pasaribu
Published: January 2025

Tujuan penelitian ini adalah untuk mengetahui pengaruh PermainanTradisional terhadap kemampuan Motorik Kasar Anak di TK Kelompok B AsamJawa. Penelitian ini dilakukan di TK Diponegoro Asam Jawa Tahun Pelajaran2021/2022. Metode yang digunakan dalam penelitian ini adalah metode quasieksperimen dengan desain penelitian Nonequivalent Control Group Design.Subjek dalam penelitian ini adalah berjumlah 35 anak terdiri dari 17 anakuntuk kelompok eksperimen 1 dan 18 anak untuk kelas eksperimen 2. Teknikpengumpulan data berupa instrument non tes kemampuan motorik kasar anak.Teknik analisis data yang digunakan dalam penelitian ini adalah uji deskripsidata, uji normalitas, uji homogenitas, dan uji hipotesis. Berdasarkan ujihipotesis yakni Paired Sample t-Test dapat dilihat bahwa taraf sig. (2-tailed)sebesar 2,578, dengan 2,578>0,05, maka Ho ditolak dan Ha diterima. Sehinggadapat disimpulkan bahwa rata-rata kemampuan motorik kasar anak denganmenggunakan permainan tradisional engklek lebih tinggi (87,18) dari rata-ratakemampuan motorik kasar anak dengan menggunakan permainan tradisionallompat tali (84,89). Dengan demikian permainan tradisional berpengaruhterhadap kemampuan motorik kasar anak Kelompok B di TK Diponegoro AsamJawa
Attempting a Democratic Technology
Authors: Logsdon John M.
Published: January 2025

Review of "The People’s Spaceship: NASA, the Shuttle Era, and Public Engagement after Apollo" by Amy Paige Kaminski.
The Heart Is Not Neutral
Authors: Briggle Adam
Published: January 2025

The highly polarized debate over health care for transgender youth demonstrates why the pursuit of so-called scientific neutrality so often fails to bring about social consensus.
When Nuance Is the Enemy
Authors: Nelson Pete
Published: January 2025

Review of "Science Communication in a Crisis: An Insider’s Guide" by Christopher Reddy.
Could an ARPA Help Resurrect US Manufacturing?
Authors: Bonvillian William B.
Published: January 2025

The United States will not regain its leadership in manufacturing by doing more of the same. The country must pursue new paradigms to invoke technological surprise and spur leaps in productivity.
Examining the Influence of Riding Distraction on Risky Riding Behavior among P-Hailing Riders in Malaysia: The Mediating Role of Moral Disengagement
Authors: Abdullah Muhammad Safizal , Azmin Adi Anuar , Mohd Kassim Muhammad Asyraf
Published: January 2025

Road traffic accidents involving motorcyclists are a significant public health issue in Malaysia, with p-hailing riders particularly vulnerable. This study investigates the influence of riding distraction on risky riding behavior among p-hailing riders in Malaysia, focusing on the mediating role of moral disengagement. Drawing on Bandura’s Moral Disengagement Theory and the Job Demand-Resources (JD-R) model, this research explores how distractions, such as mobile phone use and navigation adjustments, contribute to moral disengagement and subsequently lead to risky riding behaviors. A sample of 200 p-hailing riders, representative of the broader rider population, was analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) to test the hypothesized relationships. The findings reveal that riding distraction significantly increases risky riding behavior and that this relationship is partially mediated by moral disengagement. These results underscore the importance of addressing external distractions and cognitive justifications to improve road safety among p-hailing riders. The study recommends implementing specific interventions such as strict mobile phone usage policies and targeted training programs to reduce risky behaviors. These findings have the potential to inform policy and enhance safety practices for p-hailing riders, thereby reducing the incidence of road traffic accidents in this high-risk group.
Recent Advancements in Ergonomic Risk Assessment: Integration of Artificial Intelligence, Wearable Technology, and Industry-Specific Approaches
Authors: Hilmi Ahmad Humaizi , Abdul Hamid Asna Rasyidah , Wan Ibrahim Wan Abdul Rahman Assyahid
Published: January 2025

Ergonomic risk assessment is crucial in preventing work-related musculoskeletal disorders (WMSDs) across various industries. Traditional methods, while effective, have limitations, such as reliance on manual observations and a lack of real-time monitoring. Recent technological advancements, including artificial intelligence (AI), wearable sensors, and industry-specific solutions, are addressing these gaps. AI and machine learning techniques enable real-time data analysis, providing more accurate and proactive ergonomic assessments. Wearable technology, such as inertial measurement units and pressure sensors, offers continuous monitoring of worker movements and postures, helping to prevent injuries in sectors like healthcare, construction, and manufacturing. These tools also allow for personalized ergonomic interventions by assessing individual risk factors in real-time. Industry-specific approaches have also emerged, particularly in high-risk fields such as healthcare and mining, where the integration of ergonomic and psychosocial stressors provides a comprehensive risk assessment model. In addition to physical ergonomics, advancements now incorporate psychosocial factors, addressing issues like organizational culture and job stress, which significantly influence musculoskeletal health. Finally, technological innovations such as simulation and modeling tools further enhance ergonomic assessments by simulating worker movements and identifying high-risk postures. However, challenges remain in standardizing these tools and integrating them into existing workflows. The evolution of ergonomic risk assessments towards more automated, precise, and real-time systems promises to reduce WMSDs and improve overall workplace safety.
Recent Advances in Ergonomic Posture Research: Assessing Innovations in Occupational Health and Musculoskeletal Disorder Prevention
Authors: Hilmi Ahmad Humaizi , Abdul Hamid Asna Rasyidah , Wan Ibrahim Wan Abdul Rahman Assyahid
Published: January 2025

This review paper explores recent advances in ergonomic posture research, focusing on innovations aimed at improving occupational health and preventing musculoskeletal disorders (MSDs). The study covers multiple sectors, including agriculture, manual labor, healthcare, and office environments, highlighting the critical role of ergonomics in mitigating physical strain and enhancing worker well-being. Ergonomic interventions tailored to specific industries have demonstrated significant reductions in physiological strain, improved posture, and increased workplace safety and productivity. In agriculture and manual labor, ergonomic adjustments, such as redesigning operator workstations and utilizing ergonomic tools, have proven effective in reducing the physical demands placed on workers, particularly among traditionally underserved groups like female agricultural workers. In healthcare settings, research emphasizes the importance of posture in surgical and clinical environments, where static postures can lead to MSDs. Wearable technologies and real-time biofeedback systems have emerged as valuable tools for improving ergonomic awareness and reducing the physical toll on workers in these high-demand professions. Office ergonomics has also advanced with the development of dynamic seating systems and posture correction devices that encourage movement and reduce strain caused by prolonged sitting. Such innovations help prevent common MSDs, including back and neck pain, while also enhancing cognitive function and productivity in office environments. This review highlights the growing integration of technological innovations, such as artificial intelligence (AI) and wearable sensors, in posture monitoring and risk assessment. These tools enable real-time feedback, improving both the accuracy of ergonomic interventions and worker safety. The review underscores the need for continued research, uniform ergonomic standards, and the implementation of tailored interventions across industries to promote healthier workplaces and reduce the prevalence of MSDs.
Current Trends and Risk Factors in Low Back Pain: An Ergonomic Perspective on Prevention and Management
Authors: Hilmi Ahmad Humaizi , Abdul Hamid Asna Rasyidah , Wan Ibrahim Wan Abdul Rahman Assyahid
Published: January 2025

Low back pain (LBP) is a global health concern, impacting individuals across various professions and age groups. This review explores the critical role of ergonomic factors in the prevention and management of LBP. Occupational risk factors, including heavy lifting, prolonged sitting, non-neutral postures, and repetitive motions, contribute significantly to the rising prevalence of LBP. Professions such as healthcare, law enforcement, and office work are particularly vulnerable due to their physical demands and static postures. Ergonomic interventions, including task redesign, assistive technologies, and workplace modifications, have proven effective in reducing the incidence of LBP. Dynamic seating, lumbar support devices, and wearable technology are among the innovations that have been introduced to promote healthier postures and reduce musculoskeletal strain. Additionally, ergonomic training programs focusing on proper body mechanics and posture correction are essential for long-term prevention. Beyond physical factors, psychosocial and lifestyle elements, such as stress, sedentary behavior, and smoking, also play a role in the development of LBP. Combining ergonomic interventions with health-promoting behaviors, such as regular physical activity and stress management, can significantly reduce the burden of LBP. Technological advancements, including mobile applications and wearable devices, support adherence to home exercise programs, offering continuous feedback for posture correction and movement. This comprehensive review underscores the need for a multidisciplinary approach that integrates ergonomic interventions, technological tools, and lifestyle modifications to manage and prevent LBP effectively in both occupational and everyday settings.
Recent Advances in Ergonomic Studies on Material Handling: Mitigating Musculoskeletal Risks and Enhancing Worker Safety
Authors: Hilmi Ahmad Humaizi , Abdul Hamid Asna Rasyidah , Wan Ibrahim Wan Abdul Rahman Assyahid
Published: January 2025

Manual material handling (MMH) tasks are a significant contributor to work-related musculoskeletal disorders (WMSDs), particularly in industries where repetitive motions, awkward postures, and excessive loads are common. Recent advances in ergonomic interventions aim to mitigate these risks, enhancing worker safety and reducing the incidence of injuries. The integration of automation technologies, such as robotic assistants and human-machine interfaces, has proven effective in reducing human involvement in monotonous tasks, thereby alleviating physical strain. Additionally, passive back-support exoskeletons have emerged as promising tools to provide mechanical support during heavy lifting, bending, and repetitive movements, effectively reducing musculoskeletal risks. Technological innovations, including wearable sensors and AI-driven tools, have further improved ergonomic assessments by providing real-time monitoring and feedback on workers’ posture and movements. These advancements allow for timely adjustments and preventive measures, ensuring a safer and more efficient working environment. However, challenges remain regarding the long-term effects and user acceptance of exoskeletons and other ergonomic interventions. Studies also highlight the importance of ergonomic risk assessments, utilizing tools such as the Rapid Entire Body Assessment (REBA) and fuzzy logic models to identify and mitigate high-risk tasks.