bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessing Nitrate and Phosphate Contaminants in Agricultural Soils and Groundwater: Implications for MLGU Restoration and Eutrophication Management
Authors: Cajucom Elsa L. , Antonio Gloria Vicky A. , Aban Lorna C. , Catacutan Michael
Published: January 2025

Effective crop production depends on a sufficient supply of nutrients through fertilizer application to achieve optimal yield. However, farmers must properly manage soil nutrients to meet the fertility needs of crops without negatively impacting the quality of precious water resources. This study evaluated nitrate and phosphate levels in water and soil in Barangays Mangayang and Gabut, Dupax del Sur, Nueva Vizcaya, to understand the impact of fertilizer and agrochemical use in agriculture. The study revealed that nitrate concentrations in irrigation water were low, with mean values of 0.20275 mg/L in Mangayang and 0.41250 mg/L in Gabut, both within the acceptable limit of 7 mg/L, and showed no significant differences (p > 0.05). Soil nitrate levels were also low, with mean values of 0.57640 mg/kg in Mangayang and 0.31300 mg/kg in Gabut, falling below the recommended range of 10-50 mg/kg. Phosphate concentrations in water exceeded acceptable limits, with mean values of 1.5830 mg/L in Mangayang and 1.5415 mg/L in Gabut. In contrast, soil phosphate levels were low, with mean values of 6.1660 mg/kg in Mangayang and 1.6000 mg/kg in Gabut, with no significant differences (p > 0.05). In conclusion, nitrate levels were within safe limits, but elevated phosphate concentrations risk water quality and ecosystems. The findings suggest that improved fertilizer management practices, including precision agriculture and reduced nutrient runoff, are essential to mitigate environmental impact and ensure sustainable agricultural practices. Regular monitoring and farmer education are crucial to balancing crop production and environmental protection.
Bayesian Modeling of Extreme Precipitation in Mindanao, Philippines
Authors: Lague Archemedes A. , Lituañas Jesse Michael G. , Luzano Warren I.
Published: January 2025

The Philippines is one of the countries that is prone to typhoons and heavy rainfall. Various atmospheric measures are monitored to inform its citizens regarding climate and weather events. One of these is the r-year return level. In this study, the researchers developed precipitation return level maps with uncertainty measures for selected provinces in Mindanao, Philippines. Using advanced statistical and computational techniques, results demonstrated that a Generalized Pareto Distribution-based Bayesian hierarchical model can effectively estimate r-year precipitation return levels and their associated uncertainty. The hierarchical models efficiently handled the uncertainties in the estimation and easily integrated key covariates in the modeling. It is recommended that more parameters and other covariates be considered to extend the complexity of the model.
¿Necesitamos partidos políticos?
Authors: Escutia Carlos
Published: January 2025

Los partidos políticos juegan un papel fundamental en una democracia. Hoy en día atraviesan una crisis de credibilidad y necesitan actualizar su forma de organizarse para prevalecer en un contexto tan dinámico como la política. Los movimientos sociales han ganado terreno en lo político, el México institucional se ha construido con base en los partidos políticos y la forma de organizarse, nuestro sistema de partidos ha pasado por cambios vertiginosos después del año 2000 con el triunfo del PAN, el monopolio políotico del PRI terminaba y daba inicio a una etapa diferente de nuestro sistema político. Los partidos polítcos pasab por una crisis de credibilidad y debemos comprender que la participación social también se ha transformado. El cambio de ides y el aumento de la tecnología han sido parte de dicha tranbsformación. En este artículo se analiza si en la actualdiad necesitamos partidos políticos para seguir fortaleciendo la democracia en México.
Barreras y Desafíos de la Formación Inicial de los Docentes Colombianos para avanzar hacia una Educación Inclusiva
Authors: Pérez Morales Nancy , Cotrina García Manuel J.
Published: January 2025

Este trabajo se enmarca en una investigación de tesis doctoral, centrada en analizar cómo se aborda la atención a la diversidad, desde el enfoque de la educación inclusiva, en la formación de los futuros docentes de educación inicial en Colombia. El objetivo principal es identificar la presencia y el alcance de la educación inclusiva en los planes de estudio, así como evaluar su impacto en la preparación pedagógica del profesorado. Para abordar este objetivo se ha desarrollado un estudio cualitativo, con un enfoque etnográfico interpretativo. El contexto de investigación ha sido el programa de formación inicial de docentes de una institución de educación superior colombiana. El análisis de la información ha permitido rastrear las relaciones entre los contenidos formativos, las políticas educativas y las prácticas inclusivas en los entornos de formación inicial. Como resultado, se proponen recomendaciones orientadas a mejorar la formación docente para la educación inclusiva, destacando elementos clave que favorecen el diseño de programas formativos más efectivos en la formación inicial de los futuros docentes. La principal conclusión de este trabajo es que un modelo de formación inicial docente centrado en el reconocimiento y valoración de la diversidad y en la aceptación incondicional de todos los alumnos y alumnas en las aulas y centros regulares pueden ser clave para avanzar hacia el objetivo de desarrollo sostenible nº 4: Garantizar una educación inclusiva, equitativa y de calidad y promover oportunidades de aprendizaje durante toda la vida para todos.
El Crédito del Sistema Bancario en las Economías Provinciales: El caso de la provincia de Coclé. Años: 2024-23
Authors: Tuñón G Edwin A
Published: January 2025

En la línea de investigación   economia financiera, como parte del proyecto conociendo las economia provinciales  se   abordo el tema de los créditos  en la provincia de Coclé 2024-23- Hay un vacío de conocimiento sobre los créditos  otorgados a  las cinco principales actividades  a las  que destina  los créditos  en ésta provincia. Objetivo: Comparar los créditos a las cinco principales actividades en la provincia de Coclé  Septiembre / Octubre de 2024-23.   Métodos y Materiales .Para el desarrollo  se utilizó el diseño de las ciencias sociales, paradigma :cuantitativo, nivel de profundidad  comparativo. Las fuentes de información; Estadística de la Superintendencia de Bancos de Panamá. Se compara los créditos de las cinco principales  cuentas que reciben los créditos. Discusión: Los créditos otorgados a las actividades económicas de la provincia de Coclé. Estos tienen  la particularidad de estar  tres actividades por encima de  un millón  mensual. Se encuentran cambios  entre  2024-23, donde  la principal actividad   cambia de consumo personal a la ganadería.  Conclusiones: La estructura de los créditos  otorgados por el Sistema Bancario Nacional,  presentan algunas  variaciones en la importancia de los créditos de  Consumo personal a la ganadería y los incrementales.
Motivación y Retención: Estrategias para Motivar y Retener a los Adultos en Programas Educativos
Authors: Soria Escobar Alba Lucía , Zamora Víctor Rosemari
Published: January 2025

La educación de adultos es un referente y un reto a la vez en lo que se refiere a su desarrollo personal y profesional en un mundo laboral cambiante, porque tiene que lidiar con retos bastante serios en términos de motivación y retención de sus participantes. En esta revisión narrativa se abordan teorías sobre la motivación tales como la autodeterminación y la expectativa-valor y se estudia la motivación en estudiantes adultos desde unos factores intrínsecos y extrínsecos. A través de un análisis sistemático de bases de datos en lengua inglesa y en español también se revisaron más de 20 estudios entre 2010 y 2023. Los resultados indican que el uso de tutorías individuales, servicios de apoyo académico, programas de mentoría, gestión del estrés, desarrollo de habilidades sociales y enlaces empresariales son estrategias importantes para aumentar la retención de estudiantes adultos. Aparte de esto, también se subraya que deben atenderse las necesidades personales y familiares de los estudiantes adultos, y se reitera la importancia de la relevancia y aplicabilidad de los programas en línea con la manera en que los estudiantes o graduados adultos quieren aplicar la educación.  En conclusión, la integración de enfoques que aborden tanto las necesidades académicas como las de apoyo socioemocional, junto con un estrecho vínculo con el sector laboral, es esencial para mejorar la experiencia educativa de los adultos, aumentando su retención y tasas de éxito académico. Este estudio ofrece ideas útiles a docentes y administradores en la reorganización de programas educativos destinados a servir mejor y alcanzar a los adultos.
ANALISIS PENGARUH KEPUASAN KERJA DAN MOTIVASI TERHADAP KOMITMEN ORGANISASIONAL PNS DI LEMBAGA PEMERINTAHAN DAERAH
Authors: Zainur Ihsan  , Wulan Purnama Sari  , Yeni Yeni
Published: January 2025

This research aims to determine the influence of job satisfaction and motivation on the organizational commitment of civil servants at the Sintang Regency Community Empowerment and Village Government Service. This type of research is associative research with a quantitative descriptive approach. The sample for this research was 35 people consisting of civil servants from the Community Empowerment and Village Government Service of Sintang Regency. In this research there are two independent variables, namely motivation and job satisfaction (X1 and X2) and one dependent variable, namely organizational commitment (Y1). The results of this research show that Job Satisfaction and Motivation simultaneously have a significant effect on Organizational Commitment. Furthermore, from the results of the partial test, job satisfaction has a partial effect on organizational commitment, but motivation has no partial effect on organizational commitment at the Community Empowerment Service and Village Government of Sintang Regency.
Prevalence of depression among diabetic patients attending outpatient and inpatient
Authors: Agaz Kashif , Khan Adeem , Kaur Aashmeen
Published: January 2025

Diabetes mellitus is a collection of metabolic illnesses characterised by persistent hyperglycemia, resulting in consequences affecting several organ systems. Depression is a common and impactful psychosocial condition in diabetic patients, further hindering glycemic control and negatively affecting overall health outcomes. The present study investigated the depression prevalence among diabetes mellitus patients in outpatient treatment and its impact on diabetes management. This hospital-based cross-sectional observational study was conducted over 18 months. A sample of 125 diabetes mellitus patients was selected based on a 9% prevalence rate with a 5% margin of error and a 95% confidence interval. Depression was evaluated via the 9-item Patient Health Questionnaire Depression Screening Tool. Clinical evaluation comprised HbA1c, fasting plasma glucose, and postprandial glucose measurements. Statistical analysis was conducted utilising SPSS software. The study determined that 29.6% of diabetic patients were diagnosed with depression, with varying degrees of severity. Depression was associated with poorer glycemic control, evidenced by significantly higher levels of HbA1c, fasting plasma glucose, and postprandial glucose. Patients with depression also had a higher prevalence of diabetes-related complications, such as nephropathy and neuropathy. The study concluded that depression is prevalent among patients with diabetes and has a significant impact on diabetes management. The practical value of this study is that integrated care, including screening and treatment of mental disorders, is crucial to the improvement of the outcomes of diabetes patients
Assessing perceived dengue risk, attitude, and prevention practices in Barangay Buhangin Proper, Davao City
Authors: Bañaga Jaeven , Ang Aileen Grace , Arceño Emmanuel John , Abao Greathel Jane , Exiomo Racso Virh
Published: January 2025

Dengue remains a significant public health issue in the Philippines and globally. This study aimed to evaluate the risk perception, attitude, and prevention practices of Barangay Buhangin Proper residents while examining whether socio-demographic profiles significantly influenced these factors. The objective was to develop strategic community health interventions. A total of 584 residents participated in face-to-face interviews using an adapted risk perception, attitude, and practice questionnaire. The results show that residents demonstrated good risk perception (51.49, cut-off = 51.20) and attitude (43.62, cut-off = 38.40), but exhibited poor practice (47.22, cut-off = 57.60). The study also revealed that females (OR = 1.493, 95% CI = 1.016-2.194, p = 0.041), college graduates (OR = 0.653, 95% CI = 0.273-1.561, p = 0.041), and employed individuals (OR = 0.654, 95% CI = 0.441-0.970, p = 0.034) were statistically associated with good risk perception while being married (OR = 0.699, 95% CI = 0.318-1.714, p = 0.038) was associated with a positive attitude. However, no socio-demographic factors were linked to good practice, indicating that the issue with practices persists regardless of profile. Furthermore, weak positive correlations were observed between risk perception and attitude (r = 0.266, p 0.001), risk perception and practice (r = 0.092, p 0.027), and attitude and practice (r = 0.144, p 0.001). Despite awareness of risks and having positive attitudes, the community struggles to maintain effective practices due to complacency, self-serving behaviour, and inadequately targeted interventions. This study recommends implementing tailored interventions to address the root causes and effectively combat dengue
Effect of antioxidants on oocyte morphology and function in rats in systemic inflammatory process
Authors: Stewart Angelina
Published: January 2025

The study aimed to evaluate the impact of antioxidants on the morphological and functional properties of oocytes in rats under conditions of systemic inflammation, focusing on their potential to reduce oxidative stress and improve reproductive health. A female rats at three weeks of age were used as experimental models and divided into three groups: control, systemic inflammation-induced, and antioxidant-treated groups. Human chorionic gonadotropin was administered to stimulate superovulation, and oocytes were isolated for analysis. Morphological changes in oocytes were assessed using immunofluorescence staining, while mitochondrial function and oxidative stress were evaluated using JC-1 dye detection kit. Fertilisation rates and oocyte maturation stages were compared among the groups. All experiments adhered to international ethical standards for animal research. Systemic inflammation led to ovarian atrophy, decreasing ovarian weight to 0.3 g, which reflects a reduction in follicle number and oocyte quality. This resulted in a 30% reduction in fertilisation rates. Antioxidant therapy helped restore ovarian weight to 0.4 g, improving oocyte morphology and increasing the proportion of oocytes achieving metaphase to 75%, demonstrating the protective effect of antioxidants. The fertilisation rate improved to 65% in the antioxidant-treated group, indicating a protective effect against oxidative damage and inflammation. The findings highlight the potential of antioxidants in modulating apoptosis pathways, reducing oxidative stress, and enhancing mitochondrial function, which collectively improved oocyte quality and reproductive outcomes. Antioxidant therapy demonstrated substantial benefits in mitigating the effects of oxidative stress and inflammation on oocytes, promoting normal maturation and increasing fertilisation success. These results underscore the therapeutic potential of antioxidants for treating infertility associated with inflammatory conditions
Peran WhatsApp Group Dalam Mendorong Kewirausahaan Masyarakat Modern
Authors: Ria Yuni Lestari  , Mayang Sari  , Tubagus Faai Faujan  , Ahyani  , Ahmad Zidni Hudaya  , Mohamad Firdaus  , Idzma Nuraini  , Desi Nurafiyani  , Supiati
Published: January 2025

Penilitian ini menganalisis peran WhatsApp Group "Pasar Online" dalam mendorong kewirausahaan di masyarakat modern, khususnya di kompleks Banten Indah Permai, Taman Banten Lestari, dan Taman Mutiara Indah. Tujuan penelitian ini adalah untuk mengeksplorasi bagaimana platform ini memfasilitasi interaksi antara pelaku usaha dan konsumen serta dampak sosial yang ditimbulkannya. Metode yang digunakan adalah pendekatan kualitatif dengan wawancara mendalam dan observasi partisipatif terhadap pelaku usaha. Temuan menunjukkan bahwa WhatsApp Group berfungsi sebagai alat pemasaran yang efektif dan sarana berbagi informasi, menciptakan komunitas yang solid serta mendukung inovasi. Namun, tantangan seperti keamanan dan interaksi yang tidak sehat juga diidentifikasi. Kesimpulan penelitian ini menegaskan bahwa WhatsApp Group memiliki potensi besar dalam mendukung kewirausahaan, meskipun perlu adanya strategi untuk mengatasi tantangan yang ada demi memaksimalkan manfaatnya.
THE INFLUENCE OF WORK MOTIVATION AND COMPETENCY ON EMPLOYEE PERFORMANCE AT PT SANGHIANG PERKASA BRANCH OFFICE CIREBON
Authors: Octavia Nur , Basri Jumriah
Published: January 2025

This study aims to determine and explain the influence of work motivation and competency on employee performance at PT Sanghiang Perkasa Branch Office Cirebon. The method used in this study is a quantitative approach. Data were collected by conducting a survey using a questionnaire with a population of 35 employees, data processing analysis using SPSS version 26. The results of the study showed that work motivation had a significant effect on employee performance, this is evidenced by the tcount value > ttable (3.909 > 2.036). Competency has a significant effect on employee performance, this is evidenced by the tcount value > ttable (4.498 > 2.036). Work motivation and competency simultaneously have a significant effect on employee performance, this is evidenced by the Fcount value > Ftable (47.673 > 3.29). The magnitude of the influence of the independent variable on the dependent is 74.9%, while the remaining 25.1% is influenced by other variables not examined in this study. The implications of this study indicate that efforts to improve employee performance can be done effectively through strengthening work motivation and developing competencies on an ongoing basis.
THE INFLUENCE OF HUMAN RESOURCE MANAGEMENT AND WELFARE POLICY ON IMPROVING EMPLOYEE PERFORMANCE AT PT. ARISCO MANDIRI
Authors: Rohman Abdul , Kurnia M Fakhruddin
Published: January 2025

The purpose of this research is to analyze the influence of human resource management (HRM) policies and employee welfare on improving employee performance at PT. Arisco Mandiri. Effective HRM policies and adequate welfare are important factors in enhancing productivity and work efficiency. This research uses a quantitative approach with a survey method. Data analysis is conducted using multiple linear regression to determine the relationship between these variables. The results show that HRM policies have a positive and significant influence on employee performance. Furthermore, employee welfare also contributes significantly to performance improvement. A combination of well-planned HRM policies and adequate welfare levels can create a conducive work environment, motivating employees to achieve company targets. The conclusion of this research is that HRM policies and employee welfare collectively have a significant influence on improving employee performance. Therefore, the company needs to increase its focus on these aspects to support organizational sustainability and growth.
ANALISIS PERKEMBANGAN KINERJA KEUANGAN PADA PT. PEGADAIAN (PERSERO) TBK YANG TERDAFTAR DI BURSA EFEK INDONESIA
Authors: Nurhikma Aza , Makmur Mariam , Suriadi Suriadi
Published: January 2025

Ada berbagai jenis perusahaan BUMN di Indonesia yang bergerak di berbagai bidang salah satunya PT. Pegadaian Persero tbk. Pegadaian adalah perusahaan yang bertujuan untuk mengatasi masyarakat yang sedang membutuhkan uang agar tidak mengambil pinjaman kepada para tukang ijon atau biasa dikatakan rentenir dimana mereka memberikan bunga yang relatif tinggi. Kinerja keuangan perusahaan dapat diartikan sebagai bentuk dari hasil laporan keuangan yang telah di analisis untuk mengetahui hasil dari kinerja perusahaan serta menilai perubahan potensial sumber daya yang dimiliki selama periode yang telah ditetapkan. Tujuan utama penelitian ini adalah untuk mengetahui bagaimana perkembangan kinerja perusahaan PT. Pegadaian (persero) tbk berdasarkan hasil dari rasio likuiditas, rasio profitabilitas, rasio aktivitas, dan rasio solvabilitas. Metode yang digunakan penelitian ini adalah dengan menggunakan pendekatan kuantitatif dengan sumber data yang digunakan adalah data sekunder serta teknik pengumpulan datanya berdasarkan dokumentasi dari laporan keuangan yang diperoleh kemudian di analisis menggunakan analisis deskriptif dengan menggunakan analisis rasio keuangan. Hasil dari penelitian ini menunjukkan prusahaan dalam kondisi kurang baik berdasarkan rasio likuiditas, solvabilitas, akifitas, dan profitabilitas.
Kata kunci: Kinerja keuangan, Rasio Likuiditas, Profitabilitas, Aktifitas, dan Solvabilitas
Differential Dynamics Modeling and Simulation Analysis of Multi-Agent Cooperative Motion
Authors: Shao Qiang
Published: January 2025

With the widespread application of multi-agent systems (MASs) in fields such as drone formations, autonomous driving, and robotic swarms, achieving efficient collaboration and stable motion among agents has become a key research focus. This study begins by describing the vertices of agents relative to the formation centroid to enable collision avoidance and formation shape tracking control. Using the Lyapunov direct method, a heat-equation-based collective dynamics model for multi-agent systems is established, providing stability criteria for the model and a leader-follower algorithm. The model enables the transformation from continuous multi-agent systems to discrete systems, completing the cooperative motion of real multi-agent systems. Simulation analysis verifies the effectiveness of the proposed model and control strategy. In a typical simulation scenario, follower agents achieve consensus with leader agents within approximately 10 seconds, with the number of path nodes reduced to just six, zero obstacle collisions, and a computation time of only 49.6 seconds. The proposed control method significantly enhances the cooperative efficiency and motion stability of multi-agent systems under limited information exchange and complex environmental conditions, offering robust theoretical support for the collaborative control of future intelligent systems.
The Nonlinear Mathematical Modeling and Optimization of Distributed Control in Complex Systems
Authors: Shao Qiang
Published: January 2025

With the widespread application of complex systems in industries such as manufacturing, transportation, and energy, their high-dimensional, strongly nonlinear, and dynamically coupled characteristics pose significant challenges to traditional centralized control. To address these complexities more efficiently, this study constructs a nonlinear mathematical model by introducing nonlinear feature mapping into a multiple linear regression framework and implements distributed optimization using the Alternating Direction Method of Multipliers (ADMM). The proposed method is validated through the simulation of the nonlinear dynamic behavior of a deep-water riser–test pipe system, with experimental designs encompassing multi-dimensional vibration responses and dynamic environmental disturbances. The results demonstrate that the proposed nonlinear model significantly outperforms other methods in terms of prediction accuracy and optimization efficiency. Under varying amplitudes and frequencies of disturbances, the model achieves lower error rates and higher robustness, with an adaptation decay rate of less than 17.6%. These findings indicate that the proposed nonlinear modeling and distributed optimization approach can effectively capture the dynamic characteristics of complex systems, making it suitable for real-time distributed control scenarios with promising engineering applications.
POLA PEMBERDAYAAN PETANI BERDASARKAN TUPOKSI BALAI PENYULUHAN PERTANIAN (BPP) BERBASIS PROGRAM KOSTRATANI DI WILAYAH JAWA
Authors: Cut Rabiatul Adawiyah  , Iwan Setiajie Anugrah
Published: January 2025

Komando Strategis Pembangunan Pertanian atau KOSTRATANI merupakan salahsatu program nasional yang digagas oleh Kementerian Pertanian, dengan tujuan mempercepat kegiatan pemberdayaan petani berbasis diseminasi dan informasi dari Pusat ke Petani dan sebaliknya, melalui tugas, fungsi dan peran Balai Penyuluhan Pertanuan (BPP) sebagai institusi strategis pelaksana program dari kecamatan. Pengumpulan data dan informasi diperoleh dari hasil penelitian yang dilakukan secara purposive melalui survey dan studi kasus di wilayah BPP Kabupaten Bandung Barat, Kabupaten Subang, Indramayu dan Kuningan. Metode penulisan artikel dilakukan secara deskriptif kualitatif dari kasus-kasus pemberdayaan petani di masing-masing lokasi. Hasil Penelitian menunjukkan bahwa pola pemberdayaan petani melalui program KOSTRATANI sebagai inisiasi percepatan konektivitas dan tranformasi BPP sebagai pusat data-informasi,  gerakan pembangunan pertanian, pembelajaran, konsultasi agribisnis serta pengembangan jejaring dan kemitraan, masih dihadapkan pada terbatasnya perangkat dan penguasaan teknologi informasi, terutama sarana yang terkait dengan penggunaan aplikasi mendukung program percepatan diseminasi serta teknologi komunikasi antara para petani dengan petugas atau para penentu kebijakan di Kabupaten, Provinsi hingga Pusat dan sebaliknya secara langsung melalui sistem AWR (Agricultural War Room). Sinergi peran dan koordinasi mendukung pola pemberdayaan ini masih perlu ditingkatkan antara Kementerian Pertanian berikut Dinas/Instansi terkait di Daerah (provinsi dan kabupaten) serta secara bersama melakukan pemenuhan sarana-prasarana, peningkatan kapasitas petugas serta pendampingan para petani sebagai langkah awal pemberdayaan berbasis aplikasi teknologi informasi dan tugas, peran dan fungsi BPP setempat.
Origine de la couleur bleue des bouteilles d’oxydes minérales
Authors:   UNIVERSITE PEDAGOGIQUE NATIONALE,  NSOSANI MVIBUDULU Christian , NSILULU KITOKO Jean Pierre , MUANDA VUVU Emile
Published: January 2025

Résumé

Cette réflexion consiste à donner des informations claires sur le problème fondamental qui est lié à l’origine de la couleur bleue des verres d’oxydes minéraux. La spectroscopie visible est la méthode d’analyse qui nous a permis de bien cerner la présence des entités cobalt bivalent (o-cobalt-II-o) comme métal de transition qui absorbent les différentes radiations en laissant passer la radiation bleue entre 455 à 490 nm.

Mots clés : couleur bleue, bouteille, oxyde minérale, spectroscopie, orbitale atomique et moléculaire.
CONTRIBUTION TO THE TENSILE STRENGTH RESEARCH FOR PARTS OBTAINED BY CUBE 3D PRINT FDM PROCESS
Authors: Tiro Dragi
Published: January 2025

The tensile strength of parts obtained by Cube 3D printing is described in this paper. The material of the parts are PLA. In the research through the statistical analysis of results we checked whether the tensile strength of standard test specimens made by this method is equal to the tensile strength of the material. Experimental research has consisted of making parts of PLA plastics and testing the tensile strength of standard specimens obtained by Cube 3D printing process. Cube 3D process allows to easily and quickly obtain the prototype directly from 3D CAD models. Besides a number of advantages of this process, the research in this paper has shown that the tensile strength of parts produced by Cube 3D printing is somewhat less than the strength of the material. The reason is the way of printing that produces cross-sectional of part in which there are a very small cavities.
MONITORING AND DIAGNOSTIC OF GEAR FAILURES
Authors: Halep Amir
Published: January 2025

Gear failures have a major impact on the reliability of many machines and
the importance of monitoring and fault diagnostic of gears is very large. By
monitoring the condition gets an insight into the state and can take the
maintenance activities that prevent greater damage on machines and plants.
This paper analyzes the possible causes of gear failures, the proposal was
given to the methodology of diagnostic, as well as a proposal for monitoring
the state in view of the most important causes of failure.
ROBOT FORCE CONTROL METHODS
Authors: Murtić Sedin , Begović Edin , Čabaravdić Malik
Published: January 2025

Robot manipulators are usually used in many industrial apllications where a number of practical tasks should be executed. The very important part of that execution is interaction between robot and environment. Control of the interaction is crucial for successful execution of industrial processes. Typical applications include deburring, machining, assembly, polishing, welding and others. The main problem is to find or to choose a proper strategy to control contact force between robot and environment. There are
two basic methods of robot force control:
• Indirect force control
• Direct force control.
The main content of this paper is a brief description of these methods and experimental determinatiom of maximal contact forces, depending on the configuration and the speed of the robot arm. Experimental work has been done using robotic system FESTO RV2AJ with the help of piezoelectric dynamometer KISTLER 5070. The results of measuring are presented and analyzed by table and graphic. According to results of analysis the proper and useful conclusions are made which are pointing on the importance of robot force control for successful execution of practical tasks.
COMPARATIVE OF THE DISTRICT HEATING SYSTEM OF COUNTRIES IN TRANSITION
Authors: Mrkić Bosančić Maja , Gvero Petar , Ibrulj Jusuf , Husika Azrudin , Vasković Srđan
Published: January 2025

During the second half of the last century in Europe, district heating systems (DHS) have been built intensively to supply cities and settlements with heat energy.
Taking into account that energy prices at that time were low, there was an economic justification for the construction of expensive infrastructural distribution systems. After the first oil shock of the seventies of the last century, there was a review of the consumption of petroleum products (mainly oil) as fuel in the heat sources of the DHS.
The European Union, as well as Bosnia and Herzegovina, in the heat energy sector has long-term goals that are aimed at increasing the DHS to 30% by 2030, or 50% by 2050, in that of the current DHS of 12%. The present (current) state of the district heating system in Bosnia and Herzegovina (Republic of Srpska and Federation BiH) is presented. The paper covers the technical, technological, supply, distribution, environmental, economic and market parameters of DHS in BiH. The institutional and legislative framework is presented in the previous paper, the comparison of parameters was made in relation to the cities of other countries in transition. The main conclusions are that in the cities of BiH (in the RS and FBiH) the small utilization of the district heating system is outdated, Investing in new ones requires significant investment funds, there are small movements in the application and introduction of renewable energy sources such as biomass, and in this connection, there is a small impact on CO2 emission reductions, large losses in heat distribution have been identified, and a market situation that is distinguished still high energy prices and pricing of heat service dominantlly is based on the surface of the space.
NUMERICAL SIMULATION OF TWO-PHASE INTERFACIAL FLOWS
Authors: Berberović Edin
Published: January 2025

The paper presents the volume-of-fluid (VOF) method for interface capturing in free surface flows in OpenFOAM® software. The VOF-model utilises an algebraic compressive scheme to effectively shrink the transitional region between the liquid and the gaseous phase. The capabilities of the model are demonstrated by simulating two-dimensional
axisymmetric droplet shape evolution in a gravity-free environment, as well as drop impact on a liquid film at the flat wall. By inspection of results the model yields good performance for the computation of free-surface flows.
QUALITY TESTING OF THE OPERATING MACHINES CABINS
Authors: Bajramović Esad , Dekanović Kemal , Bajramović Emir
Published: January 2025

The basic objective of machine structure testing is to reduce the number of structures without satisfactory quality, which are either discarded as scrap or sent for additional machining. The non-destructive testing can detect surface and internal errors in structures, depending on the applied testing method, which enables total quality of the product without structure damage. One can also monitor and analyze the quality development and costs control in the exploitation process, thus enabling the balance
between quality control and cost control. Carried out tests would not only detect the error in the structure, but they can also determine its size, intensity, shape and position. The error is lesser if discovered early in the manufacturing process. The error is usually easier to remove in the early stages of production, which may not be possible in the finished product.
This papers shown the control on welded joints of cabine, especially ROPS and FOPS methods important for these machine structures.
COMBINED EXPERIMENTAL-NUMERICAL ANALYSIS OF ELASTIC BALLS SUBJECTED TO COMPRESSION BETWEEN PLATES
Authors: Karač Aleksandar , Kargić Muamer
Published: January 2025

This work presents the combined method for determination of mechanical characteristics of elastic balls filled with fluid by using compression test and appropriate analytical-numerical method. Ordinary playing balls, being modelled with the Mooney-Rivlin
material model, are used in the study. Results obtained by this combined numerical-experimental analysis are compared with tensile test results. Very good agreements are achieved in terms of measured and simulated modulus of elasticity and ball thickness.
INFLUENCE OF CONTRACTION SHAPE ON THE FLOW QUALITY IN WIND TUNNEL TEST SECTION
Authors: Bešlagić Ernad
Published: January 2025

Contraction is a part of a wind tunnel that has the greatest impact on the air flow quality in the test section. The constriction ratio, the cross section shape, the length and wall shape are constructive parameters that influence the uniformity of the flow, the flow turbulence intensity, the flow rotation angularity, the appearance of the flow separation and the thickness of the fluid flow boundary layer in the test section. For this reason, it is very
important to choose the optimal combination of the mentioned contraction design parameters. In this paper, an analysis of five different contours of the contraction wall was performed for the square outlet cross-section Ao=0.64 m2, the constriction ratio CR=4 and the contraction length L=1.88 m. With the computer code of Flow Simulation, 25 numerical simulations were performed and the obtained results were analyzed.
The integrative role of physical exercise and muscle satellite cells in remodeling muscle structure and function
Authors: Lu Yao , Xu Kai , Kong Jianda , Liu Chao
Published: January 2025

With the aging of the population and changes in lifestyle, sustaining muscular function has become essential for enhancing quality of life. Muscle satellite cells, as the principal source of regeneration for skeletal muscles, are essential for muscle growth, maintenance, and repair. Our review explores how physical exercise (PE) impacts the remodeling of muscle structure and function by modulating the activity of Muscle satellite cells (MuSCs), and further identifies the underlying implications of this process for the prevention and treatment of degenerative muscle diseases. By exploring current evidences on the interaction between MuSCs and PE, our review investigating the effect of PE on the activity, proliferation, and differentiation capabilities of MuSCs, and how these changes improve the enhancement of muscle mass and function. Evidences confirmed that PE can enhance the contribution of MuSCs to muscle fibers, particularly by boosting muscle adaptability through changes in muscle fiber type and size. PE-induced activation of MuSCs is linked not only to an increase in the number of muscle fibers but also with promoted endurance and strength performance of muscles. Besides, the positive effects of PE on MuSCs may vary with the form, intensity, and duration of PE. Additionally, PE plays a crucial role in the remodeling of muscle structure and function through the activation and proliferation of MuSCs, stressing the potential value of developing appropriate PE interventions in the prevention and treatment of muscle-related diseases, particularly among the elderly. Future research should further explore the specific effects of various types and intensities of PE on MuSCs activities to maximize exercise prescriptions for strengthening muscle health and function.
The effect of chlorhexidine gluconate gel on the decrease in the quantity and pathogenic potential of the microorganisms contained in the dental plaque conglomerate in chronic periodontal disease
Authors: Sali Sahmedin , Emini Lindihana , Popovska Mirjana , Atanasovska-Stojanovska A.
Published: January 2025

Aim: Comparative microbiological analysis on the quantity and pathogenic potential of dental plaque content during chronic periodontal disease in patients using conventional therapy and standard therapy supported by chlorhexidine gluconate gel.
Materials and methods: To achieve the set objective, a total of 30 patients of both sexes, aged 20-50 years, who were diagnosed on the basis of X-ray analysis and clinical parameters with periodontal disease of the second clinical stage. The researchers were divided into 2 groups: the first group was treated with the conventional method - standard method, and the subjects from the second group were treated with the combined method - conventional method - standard method and chlorhexidine gluconate gel agent. All the researchers underwent a clinical examination and the material was taken for microbiological analysis. The determination of microorganisms was carried out through the material obtained from each patient. The material was taken from dental plaque with tooth scraping and periodontal scraping from the probe surface before therapy and after therapy in both tested groups.
Results: The results show a reduction of periopathogens after the application of the conventional method together with the application of Chlorhexidine gluconate gel, compared to the researchers treated only with the conventional method. The results from the table show that the periopathogens before and after the application of the conventional method do not have large percentage differences, unlike those found after the application of conventional therapy with the application of Chlorhexidine gluconate gel.
Conclusion: The use of the combined method/ conventional standard method with the addition of the antiseptic Chlorhexidine gluconate gel, has a significant effective effect against periodonto-pathogenic bacteria by reducing the quantitative amount and pathogenicity of microorganisms in patients with chronic periodontopathy.
Fiduciary Guarantee Agreement in Relation to Constitutional Court Decision Number: 18/PUU-XVII/2019
Authors: Nasution Ahmad Julyadi , Kamello Tan , Purba Hasim , . Saidin
Published: January 2025

An agreement is an event where a person promises another party to carry out something.. Bank and non-bank financing institutions distribute funds to the public in the form of credit with collateral, one of which is a fiduciary guarantee. When implementing the agreement, defaults sometimes occur. With the issuance of the Constitutional Court's decision Number 18/PUU-XVII/2019, disputes were resolved through a court decision. In contrast, previous disputes without a court decision were resolved by withdrawing the collateral Object based on the deed of agreement and fiduciary guarantee certificate. Based on the description above, the problem of this research is the position of fiduciary guarantee deeds with the issuance of Constitutional Court decision Number 18/PUU-XVII/2019 and the practice of executing fiduciary guarantees carried out by financing institutions. This research method uses normative juridical methods. Fiduciary guarantee deeds and fiduciary guarantee certificates have the power as proof of creditors holding fiduciary guarantees. Fiduciary recipients can immediately execute the action of collateral. With the Constitutional Court's decision, it certainly slows down execution in practice. Fiduciary guarantee deeds and fiduciary guarantee certificates have the same executorial power as court decisions. In the Constitutional Court's decision, the execution of fiduciary guarantees is carried out based on the court's decision if the fiduciary guarantee deed does not mention default. The fiduciary guarantee deed and guarantee certificate must still be a means of executing the guarantee without going through a court decision.
Analyzing the Role of Government Support in Moderating Behavior and Revisit Intention in Halal Tourism
Authors: Karya Denis Fidita , Ratnasari Vita , Anshori Mohamad Yusak
Published: January 2025

In the current era of globalization, the tourism industry faces demands to continue to adapt to changing tourist preferences, including for those who follow halal lifestyles and principles. The phenomenon of halal tourism is growing, demanding a deeper understanding of the factors that influence the behavior of Muslim travelers in choosing destinations and contributing to the sustainability of halal destinations. This study aims to investigate the impact of Halal Literacy, Perceived Risk, and Perceived Uncertainty on the Theory of Planned Behavior (SDGs) and how their influence influences the behavior and intention to return Muslim travelers, with Government Support as a moderator variable. This research is quantitative. Data was collected using a purposive random sampling method by distributing a questionnaire to 200 tourists visiting halal destinations in East Java. The results of this study explain that all hypotheses have a significant positive influence, except subjective norms, on behavior. In addition, using government support as moderator has a significant positive effect on behavior and revisit intention.
When AI Meets Consumer Behavior: Exploring How Human-Like AI Chatbots Shape Trust in Consumer Purchase Intentions
Authors: Pirzado Altaf Hussain , Babar Abdullah , Castillo Maria Guadalupe Arcos , Rahman MD Musfiqur , Muro Miriam Elisante
Published: January 2025

In recent times, the technology of artificial intelligence (AI) has been evolved in almost all domains and has significantly benefited customer lives. In fact, consumer-facing technologies have become the most popular and in-demand services. Given the increasing admiration of AI chatbots as a means to promote and support the positive consumer experience, understanding how AI chatbots influence consumer behavior is critical for both marketeers and researchers. However, despite numerous studies being explored on AI technology, there is an absence of comprehensive research examining AI chatbot interaction quality in shaping trust and, consequently, consumer purchase intention. Our research aims to present an empirical investigation how human-like AI chatbot engagements influence consumers’ trust and purchase intentions, whilst focusing on mediating role of humanization. Our study employs SEM (Structural Equation Modeling) using Smart-PLS 4 analyzing data collected from 366 respondents obtained through a self-administered questionnaire. Henceforth, our results show that the quality of interaction with AI chatbot improves trust and has a positive effect on consumer purchase intentions. Furthermore, this study provides significant insights into the behavioral implications of AI chatbots, whereas human-like characteristic enhances the effect of trust on purchase intention. This also contributes to the understanding of AI in marketing by proposing a novel perspective to appreciate humanization in AI-driven consumer interactions.
LEVERAGING BIO-INSPIRED ALGORITHMS TO ENHANCE EFFICIENCY IN COVID-19 VACCINE DISTRIBUTION
Authors: GANJI Farshad
Published: January 2025

The Covid-19 pandemic has created unprecedented challenges for global vaccine distribution, highlighting the critical need for efficient logistical strategies that ensure timely delivery and equitable access to vaccines. This study examines the application of bio-inspired algorithms—Ant Colony Optimization (ACO), Genetic Algorithms (GAs), and Particle Swarm Optimization (PSO)—to optimize the distribution process of Covid-19 vaccines. By conducting a comparative analysis, the research evaluates each algorithm's effectiveness in minimizing total delivery time, reducing distribution costs, and improving convergence speed.The findings reveal that Genetic Algorithms (GAs) provide the most comprehensive optimization solution, outperforming other methods in both delivery time and cost-efficiency. GAs demonstrated a superior ability to navigate complex logistical networks, making them highly effective for large-scale vaccine distribution efforts. In contrast, Ant Colony Optimization (ACO) emerged as the fastest algorithm in terms of convergence speed, rapidly identifying optimal distribution routes. This makes ACO particularly valuable in scenarios where quick decision-making is crucial, though it may require additional refinement to match the cost-effectiveness of GAs.Particle Swarm Optimization (PSO), while not leading in any single category, offers a well-balanced performance across all metrics, proving to be a reliable option for consistent and adaptable optimization. PSO's ability to balance trade-offs between delivery speed, cost, and algorithmic efficiency makes it a practical choice for real-world applications where multiple factors must be simultaneously optimized.The study also explores the potential of hybrid approaches, which combine the strengths of different bio-inspired algorithms to achieve superior results. Additionally, the integration of adaptive algorithms and machine learning techniques is identified as a promising avenue for further enhancing vaccine distribution strategies, enabling systems to dynamically adjust to changing conditions and demands.The research concludes with several recommendations for future exploration. Emphasizing the importance of scalability, it suggests that bio-inspired algorithms should be adapted for larger, more complex distribution networks. The study also advocates for the real-time implementation of these algorithms, allowing for more responsive and efficient vaccine logistics. Finally, the paper highlights the need for multi-objective optimization approaches that can address the diverse and evolving challenges associated with global vaccine distribution, ultimately contributing to more resilient and equitable public health outcomes.