bluuebunny/crossref_metadata_2025 huggingface dataset:
Grain growth and mechanical properties of CeO2-x films deposited on glass substrates by closed field unbalanced magnetron sputtering technique
Authors:   Department of Physics, School of Distance Education, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia, Chuah L. S. , Bilal H ,   Department of Physics, School of Distance Education, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia, Jiang Z. T.T. ,   Surface Analysis and Materials Research Group, School of Engineering & Information Technology, Murdoch University, Murdoch, Western Australia 6150, Australia
Published: January 2025

CeO2 films with five different oxygen flow ratios, namely 1179°C, 1180°C, 1181°C,
1182°C, 1183°C and 1184°C were synthesized on glass substrates via closed field
unbalanced magnetron sputtering technique. These films were characterized using many
techniques such as X-ray diffraction (XRD), Field Emission Scanning Electron Microscope
(FE-SEM), and UV-Vis-NIR. When the post-annealing temperature (TPA) for the films was
increased from 1179°C to 1183 °C, a reduction of oxygen in the film was observed, which
led to a phase transition from cubic to hexagonal Ce2O3 (002). The phase transition is related
to Ce4 to Ce3 transformation due to the formation of oxygen vacancies. XRD studies
revealed that all samples have a cubic fluorite CeO2 structure (space group: Fm3m) with a
preferred orientation along (1 1 1) except for 1179 °C and 1181°C which prefer (2 2 0) plane
orientation. Sample 1179°C showed the highest roughness (3.72nm) while sample 1184 °C
has the lowest roughness (1.72nm). Sample 1181 °C showed highest percentage
transmittance (>50%) while the other samples showed a percentage transmittance lower than
50%. Most of the films obtained exhibits a smooth and crack free surfaces.
Nanostructured zinc doped tungsten oxide films for antibacterial applications
Authors:   Department of Physics, Vikrama Simhapuri University College, Nellore-524320, Andhra Pradesh, India, Ravi Kumar R , Khan P. J ,   Department of Physics, Vikrama Simhapuri University College, Nellore-524320, Andhra Pradesh, India, Rao D. S ,   Department of Physics, Vikrama Simhapuri University College, Nellore-524320, Andhra Pradesh, India, Kalpana G. ,   Department of Physics, Vikrama Simhapuri University College, Nellore-524320, Andhra Pradesh, India, Sivasankar Reddy A ,   Department of Physics, Vikrama Simhapuri University College, Nellore-524320, Andhra Pradesh, India, Gopikrishna P ,   Department of Zoology, Vikrama Simhapuri University College, Kavali-524201, Andhra Pradesh, India, Krishna A. M. ,   Central Instrumentation Centre, Vikrama Simhapuri University College, Nellore524320, Andhra Pradesh, India, Reddy P. S. ,   Department of Physics, Sri Venkateswara University, Tirupati-517502, Andhra Pradesh, India
Published: January 2025

Pure and zinc doped tungsten oxide films were deposited on glass substrates at various wt%
of zinc by using the electron beam evaporation method. The scanning electron microscope
(SEM), X-ray photoelectron spectroscopy (XPS), and UV-Vis-NIR double beam
spectrometry techniques were used to assess the properties of pure and zinc doped tungsten
oxide films. From the SEM results, undoped tungsten oxide films exhibited a rice hull type
nanostructure. The zinc doped tungsten oxide films exhibited a spider net structure. The
antibacterial activity of Zn-WO3 films was studied with Pseudomonas aeruginosa. The zinc
doped WO3 films are effectively inhibiting the bacteria’s growth.
Effect of the incorporation of gold nanoparticles on the current‒voltage characteristics of Ag/Si diodes in the dark and under light
Authors:   Department of Sustainable Energy Engineering, Bethlehem University, Bethlehem, Palestine, Ghabboun J. , Musa I. ,   Department of Physics, Palestine Technical University-Kadoorie, P. O. Box 7, Tulkarm, Palestine, Adawi N. ,   Department of Sustainable Energy Engineering, Bethlehem University, Bethlehem, Palestine, Mousallam M. ,   Department of Sustainable Energy Engineering, Bethlehem University, Bethlehem, Palestine
Published: January 2025

The use of nanoparticles in electronic devices has become common practice for controlling
and improving device performance. In this research, gold nanoparticles (AuNPs) were
introduced into silver‒silicon (Ag/Si) Schottky diodes to investigate their impact on the
current voltage (I‒V) behavior in both the dark and light surroundings. Spin coating was
used to deposit a film of AuNPs on the Si substrate, followed by thermal evaporation of Ag
metal to create the concluding Ag/AuNP/Si diode. Study of the I‒V curves revealed a
reduction in the barrier height after the addition of AuNPs in both the dark and illuminated
settings. Furthermore, the presence of AuNPs led to a decrease in both the series (Rs) and
shunt (Rsh) resistances when the diode was exposed to light, indicating an improvement in
the photosensitivity of the Ag/Si structures. This enhancement was attributed to the ability
of AuNPs to increase light absorption through local interface plasmon excitations, resulting
from the shared oscillation of free electrons on metallic surfaces
Structural simulation and preparation of graphite with phosphate intercalation
Authors:   College of Materials Science and Engineering, Nanjing Tech University, South PuZhu Road No.30, Nanjing, 211816, PR-China, Xing Y. , Zhou Y. ,   College of Materials Science and Engineering, Nanjing Tech University, South PuZhu Road No.30, Nanjing, 211816, PR-China
Published: January 2025

This study introduces a novel method for synthesizing phosphate-intercalated graphite (GPO₄³⁻-G) using electrochemical techniques with oxidation-based pretreatment. Employing
CP2K software for first-principles calculations, the research demonstrates successful
creation of G-PO₄³⁻-G, characterized by an enhanced, stable crystal structure. Techniques
such as XRD, SEM with EDS mapping, and TEM verify the effective intercalation of
phosphate ions, significantly boosting the material's hydrogen storage capabilities.
Simulation study on lead-free double Cs2AgBiBr6/GaAs tandem solar cells
Authors:   School of Physics and Materials Science, Nanchang University, Nanchang 330031, China, Yu M. J. , Yuan J. R. ,   School of Physics and Materials Science, Nanchang University, Nanchang 330031, China, Deng X. H. ,   School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
Published: January 2025

Cs2AgBiBr6, a double perovskite devoid of lead, is a remarkable alternative to traditional
perovskite solar cells. This research utilised Silvaco TCAD simulation software to construct
and examine lead-free double Cs2AgBiBr6/gallium arsenide tandem devices. By optimising
the perovskite layer thickness, the thickness and doping concentration of the gallium
arsenide base layer, selecting an appropriate carrier transport layer thickness, and integrating
an anti-reflective layer, the conversion efficiencies of the four-terminal lead-free double
Cs2AgBiBr6/gallium arsenide tandem solar cell is achieved up to 31.71%. Based on the
study of 4-T tandem devices, current matching of 2-T tandem devices was performed. The
2-T tandem device achieved an energy conversion efficiency of 26.35% by optimising the
doping concentration of the GaAs substrate layer. Furthermore, the 2-T tandem device
energy conversion efficiency remains at 23.40% following the current matching under
spectral AM0, which has the potential application in space.
Synthesis of ZnO semiconductor nanoparticles using extracts of Capsicum annuum L. for photocatalytic activity in degradation of polluting dyes
Authors:   Faculty of Engineering, Architecture and Design, Autonomous University of Baja California, Ensenada, Baja California. C.P. 22860, México, Rodríguez-Ortiz M. J. , Lugo-Medina E. ,   Tecnológico Nacional de México/IT de Los Mochis, Los Mochis, Sinaloa. C.P. 81259, México, Soto-Robles C. A. ,   Tecnológico Nacional de México/IT de Los Mochis, Los Mochis, Sinaloa. C.P. 81259, México, Nava O. ,   Centro de Nanociencias y Nanotecnología-UNAM, Ensenada, Baja California. C.P. 22800, México, Aguilera Molina F. ,   Faculty of Engineering, Architecture and Design, Autonomous University of Baja California, Ensenada, Baja California. C.P. 22860, México, Báez-López Y. A. ,   Faculty of Engineering, Architecture and Design, Autonomous University of Baja California, Ensenada, Baja California. C.P. 22860, México, Quevedo-Robles R. V. ,   Faculty of Engineering, Architecture and Design, Autonomous University of Baja California, Ensenada, Baja California. C.P. 22860, México, Carrillo-Castillo A. ,   nstituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, C.P. 32310, Chihuahua, México, Moreno-Osuna F. ,   Tecnológico Nacional de México/IT de Los Mochis, Los Mochis, Sinaloa. C.P. 81259, México, Ranjithkumar R. ,   Center for Global Health Research, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 602105, Tamil Nadu, India, Villarreal Sánchez R. C. ,   Faculty of Engineering, Architecture and Design, Autonomous University of Baja California, Ensenada, Baja California. C.P. 22860, México
Published: January 2025

In this work, ZnO semiconductor nanoparticles were green-synthesized using Capsicum
annuum L. var. Caribe pepper extracts at 1%, 2%, and 4% w/v (weight/volume) as
stabilizing agents. The nanoparticles were applied in photocatalytic processes for the
degradation of Methylene Blue (MB), Methyl Orange (MO), and Rhodamine B (RhB) in
aqueous media. Characterization involved Fourier Transform Infrared Spectroscopy (FTIR), identifying the Zn-O bond at 421 cm-1. X-Ray Diffraction (XRD) analysis revealed a
hexagonal Wurtzite-type crystalline phase with crystallite sizes ranging from 13 to 23 nm.
Scanning Electron Microscopy (SEM) showed hemispherical clusters smaller than 5
micrometers. UV–Visible spectrophotometry determined band gap values between 3.05
and 3.13 eV. These materials exhibited significant photocatalytic degradation efficiency
for the tested dyes.
Computational investigation of charge transfer mechanisms in dye-sensitized solar cells: unraveling the influence of anchoring groups in 2-styryl-5-phenylazo-pyrrole designed dyes
Authors:   Nano-optoelectronics Research Laboratory, Department of Physics, University of Agriculture Faisalabad, 38040, Pakistan, Iqbal T. , Sajid M. ,   Institute of Micro-Nano Optoelectronics, Optical Engineering, Shenzhen University. China, Felemban B.F. ,   Department of Mechanical Engineering, College of Engineering, Taif University, Taif 21944, Kingdom of Saudi Arabia, Ali H.T. ,   Department of Mechanical Engineering, College of Engineering, Taif University, Taif 21944, Kingdom of Saudi Arabia, Surianid A.B. ,   Department of Physics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, MALAYSIA, Ali K. ,   Nano-optoelectronics Research Laboratory, Department of Physics, University of Agriculture Faisalabad, 38040, Pakistan
Published: January 2025

The proposed dyes demonstrated characteristics conducive to achieving high-power
conversion efficiency (PCE) in dye-sensitized solar cells (DSSCs). Novel azo dyes diverse
anchoring groups, including carboxylic acid, carboxylic diacid, biscarbodithiolic acid,
phosphonic acid, and sulfonic acid, were examined to assess their impact on electronic and
optical properties within DSSCs. A computational investigation was conducted to design
and evaluate charge transfer mechanisms using azo-pyrrole-based dyes for DSSCs
performed with the Gaussians 09 and employing TD-DFT techniques with functions like
B3LYP and a 6-31G (d, p) basis set to analyze ground and excited state characteristics.
Enhanced charge transfer was observed due to improved molecular properties within
DSSCs. The analysis encompassed electronic and optical properties, UV-Vis absorption
spectra, light harvesting efficiency, and hardness to elucidate the effects of various
anchoring groups. Carboxylic acid-based dyes exhibited broad absorption spectra, the
longest maximum wavelength, and the highest light harvesting efficiency, indicating
proficient electron injection capabilities.
Enhancing power conversion efficiency of polycrystalline silicon solar cells through ZnO/SiO2/Al2O3 anti-reflective coatings via spin coating
Authors:   a Department of Multidisciplinary Engineering, The NorthCap University, Gurugram, Anu T. , Gobikrishnan U. ,   Department of Mechanical Engineering, Sona College of Technology, Salem, Karthikeyan S. ,   Department of Mechanical Engineering, Erode Sengunthar Engineering College, Perundurai, Erode- 638057, Chirag S. ,   Department of product design, DLC state university of performing and visual arts, Rohtak, Vishal S. ,   Department of Mechanical Engineering, Ramdeobaba University, Nagpur - 440013, Aravindan N. ,   Department of Fire Engineering, National Fire Service College, Nagpur, Swathi S. ,   Department of Physics, Agni College of Technology, Chennai
Published: January 2025

The investigation aims to enhance the photocurrent generation of p-Si solar cells through
the application of anti-reflective coatings (ARC) including ZnO, SiO2, Al2O3, and a
combination of ZnO, SiO2, and Al2O3. The spin coating approach was preferred for
depositing anti-reflective coating materials as clear thin films on the substrate of the p-Si
cells. The absorbance, reflectance, I-V, morphology, and temperature behaviour of the
ARCs onp-Si cells were examined to ascertain the impact of the ARCs. Among several
coating materials, the blended ZnO+SiO2+Al2O3on p-Si cells achieved a highest
conversion efficiency of 20.71% under controlled setup condition, with anelectrical
resistance of5.83×10-3 Ω cm. The examination of the optical characteristics demonstrated a
highestabsorbance of 92% and a lowest reflection loss of 10%, attained by the
ZnO+SiO2+Al2O3sample within UV band. The ZnO+SiO2+Al2O3 blend exhibited
significant enhancement in thermal behaviour, achieving a lowest temperature of 49.9 °C
in controlled source settings. Analyses demonstrated that the composite ZnO+SiO2+Al2O3
is a suitable blendwithanideal anti-reflectiveproperties to improve the efficiency of p-Si
solar panels.
Determination of metals concentration in sedimentary profiles from lagoons affected by the tailings from the collapse of the Fundão dam
Authors: Gonçalves Mariana Ferreira , Godoy José Marcus de Oliveira , Ferreira Ana Cristina de Melo
Published: January 2025

The collapse of the Fundão dam in Mariana released more than 59 million m³ of tailings, which flowed almost 700 kilometers along the Doce river, through the states of Minas Gerais and Espírito Santo, reaching the estuary and into the Atlantic Ocean. In view of all the possible impacts that may have been caused by the environmental accident involving the collapse of the Fundão dam, considered the world's largest socio-environmental disaster involving tailings dams, there is a need for studies that address the level of contamination of terrestrial ecosystems, not only because of their capacity to accumulate chemical elements, but also because they are recognized as possible sources of contaminants. In this segment, this study evaluated the concentrations of metals (Zn, Mn, Cr, Cu, Ni, As, Pb, Ba, Al and Fe) in vertical profiles of sediment samples from three lagoons in Espírito Santo State, affected by the collapse of the Fundão dam. A gravity sampler supplied by the Austrian company Uwitec was used to extract the samples. The sediment samples were subjected to acid dissolution and an inductively coupled plasma optical emission spectrometer (ICP-OES) was used to quantify the metals. Maximum concentrations of iron (235,260 mg kg-1) and arsenic (52 mg kg-1) were obtained in the Areal profile; aluminum (30,270 mg kg-1) and manganese (4,590 mg kg-1) in the Areão profile. The concentrations of Cu, Pb and Zn exceeded the guideline values adopted by the CCME, above which the occurrence of negative effects on biota is likely.
Proximal rupture of the anterior rectus femoris muscle in a soccer player - a case report
Authors: Gomes Rebeca , Carvalho Madalena , da Silva Tomás Ribeiro , da Silva Bernardo Gaspar , M Costa Francisca , Quinteiro Gonçalo Francisco , Costa José , Mirco Teresa , Sampaio Francisco
Published: January 2025

Rectus femoris muscle strain injuries are uncommon but significant, particularly for high-level athletes, and typically occur at the distal muscle-tendon junction. Proximal ruptures, though rare, are associated with high-impact activities, such as football, where the muscle is stressed during actions like kicking. This case study details the injury of a 25-year-old semi-professional football player who sustained a proximal rectus femoris tendon rupture following a hip hyperextension movement during a football match. The patient presented with anterior thigh and inguinal pain, and imaging confirmed a near-complete tendon disruption with hematoma. The treatment plan included pharmacological pain management, physiotherapy, and strengthening exercises, without rest. Two weeks post-injury, the athlete showed significant recovery with pain-free walking and early-stage rehabilitation. The case highlights the importance of timely diagnosis using ultrasound and MRI and suggests a rehabilitation protocol emphasizing early mobilization and gradual strengthening exercises.
V.A. Nesterovskyi. MICROSPHERULES IN MODERN BEACH SEDIMENTS OF THE NORTH-WESTERN PART OF THE BLACK SEA
Authors: Nesterovskyi V.A. , Deiak M.A. , Hryshchanko N.O.
Published: January 2025

The article presents the results of studies of microspherules from beach sediments of the north-western part of the Black Sea. Microspherules are common in fractions less than 0.5 mm, have a spherical shape and a different chemical composition. They are mainly ferrous, magnesium-calcium-manganese, silicate and polycomponent. According to the authors, microspherules are of technogenic origin.
Analysis of the consistency of the descriptive data in Land and Building Register with the Land and Mortgage Register on a selected examplet
Authors: Jurkiewicz Magdalena , Wójtowicz Aleksandra
Published: January 2025

There are currently two basic public registers concerning real estate in Poland: the Land and Building Register (EGiB) and the Land and Mortgage Register (KW). The descriptive data in the Land and Building Register includes information on registered plots of land, buildings and premises, while the Land and Mortgage Register presents information on the legal status of the property. These systems operate independently, as they are maintained by different public administration bodies. However, the data contained in the Land and Building Register form the basis for the designation of the property in the Land and Mortgage Register, and thus both registers are interconnected and should contain consistent information. It is crucial that the information repetitively reported in both the EGiB and KW are identical. Consistency of data attribute values contained in both registers provides technical and organisational opportunities for harmonisation and integration of data from both sets. It is also an important factor for conducting investment activities on real estate. Previous analyses by researchers indicate that data on plots in the real estate registers are not sufficiently consistent. The aim of the article is to review the current situation with regard to the consistency of the basic data on land plots contained in the Land and Building Register and Land and Mortgage Registers on a selected example. The analysis by the comparative method was supplemented with the determination of the Jaccard index and the Russel-Rao coefficient. These are indices allowing to determine the degree of similarity between sets containing the same attributes.
Land divisions and their impact on the regression of parameters of the spatial arrangement of plots
Authors: Gniadek Jacek , Przegon Wojciech
Published: January 2025

The results presented in the study concern the analysis and assessment of the arrangement of plots on the example of a precinct that in the 1930s in Poland was subject to a process of partial land consolidation. The aim of the study was to assess the spatial arrangement parameters of the cadastral plots involved in plant cultivation. The research assumed the determination of the degree of defectiveness of the present land layout and the estimation of the degree of deterioration of the arrangement of plot boundaries between the present boundary layout and the boundary layout formed in the previous century. In addition, it was attempted to answer the following question: to what extent does the progressive fragmentation of plots over the years reduce the efficiency of agricultural production carried out in their area. The arrangement of the plots was studied using the ‘Qgis’ software, with the help of which all the necessary parameters of the spatial arrangement of the plots were estimated. In the research process, cadastral data and orthophotomaps, obtained from the geoportal of the Central Office of Geodesy and Cartography in Poland, were used. The assessment of the arrangement of the plots in both old and present variants was carried out through a synthetic measure of their arrangement in the form of the so-called cultivation costs, which depend on the spatial arrangement of the plots. The obtained result provided a basis for indicating the defects of the surveyed layout of boundaries, and for concluding that the defectiveness of the arrangement of plots depends to a large extent on the original layout of boundaries and on the degree of introduced changes in the land layout, which in the surveyed case was estimated at several percentage points.
La Inteligencia Artificial en el transhumanismo y el posthumanismo: retos, desafíos y oportunidades
Authors: Cabrera Fernández Marta
Published: January 2025

La premisa transhumanista de conseguir la mejora de las capacidades humanas más allá de sus límites naturales a través de la tecnología está intrínsecamente relacionada con la Inteligencia Artificial, la cual constituye uno de sus principales instrumentos. Gracias a ella, intervenciones como la implantación de electrodos cerebrales, que hasta ahora solo tenían fines terapéuticos, van camino de cobrar importancia como métodos de perfeccionamiento de capacidades físicas, cognitivas y memorísticas. Ante la inminencia de tales avances, es menester identificar las desigualdades que puedan ocasionar. Por ejemplo, la coexistencia con personas que se hayan servido de esta tecnología para potenciar sus capacidades llevaría a una competitividad injusta en ámbitos como el académico o el laboral. Algo similar se da desde hace años en los certámenes deportivos de élite, que se enfrentan al desafío del uso de esteroides anabolizantes que afectan a la competición igualitaria.
Será el objetivo de este trabajo presentar la situación actual de la Inteligencia Artificial con fines transhumanistas y posthumanistas para dilucidar si su completa implantación es compatible con la justa competitividad en los ámbitos mencionados. Se identificarán de esta manera los retos a los que se enfrentan las sociedades democráticas a la hora de abordar la regulación legislativa de estas circunstancias, tanto en lo relacionado al contenido de esa normativa como a su forma e incluso a su mera existencia.
INFLUENCIA DE LAS EMOCIONES Y CONDUCTAS ALIMENTARIAS, ESTUDIANTES CON SOBREPESO Y OBESIDAD
Authors: Flórez Fernández Esperanza , Romero Leiva Katherine , Pacheco Potes Zhayra Zharick
Published: January 2025

Las emociones en las conductas alimentarias de los estudiantes con sobrepeso y obesidad con edades comprendidas entre 18 y 36 años de la facultad de Nutrición y Dietética en la Universidad del Atlántico son el objeto de esta investigación. Los materiales y métodos: estudio mixto de tipo correlacional de corte transversal a partir de un muestreo no probabilístico. Participaron 30 estudiantes de la facultad de Nutrición y Dietética de la Universidad del Atlántico entre 18 y 36 años. Se aplicó instrumento para determinar los hábitos y conductas alimentarias a través del Test de Comedor Emocional de Garaulet, Test de Hábitos alimentarios de González – De Ruggiero y se clasificó el estado nutricional a través del IMC. Resultados: La muestra presentó que el 83% de los estudiantes están en sobrepeso y 17% en obesidad, en el cual predominó el sexo femenino con un 73% y el 27% correspondieron al sexo masculino. Así mismo, se observó que el 83% de la muestra son comedores emocionales; el 70% poseen buenos hábitos alimentarios, y 63% de las personas que presentaron alimentación emocional consumen azúcar. Por lo tanto, se evidencia asociaciones entre: sexo, estado nutricional y conductas alimentarias; se obtuvieron según la prueba de Tau Goodman y Kruskal un valor de 0,165 con un p - valor de 0,026. Conclusión: Se encontró que en la población estudiada las emociones negativas influyen en las conductas alimentarias.
RENDIMIENTO DE PARADEPORTISTAS CON SÍNDROME DE DOWN EN DOS TEST AERÓBICOS DE CAMPO
Authors: Torres Buelvas Cristian David , Mestra Salgado José Carlos , Pérez Támara Sergio Daniel , Garces Garces Francisco Miguel
Published: January 2025

El síndrome de Down es un trastorno cromosómico que afecta el desarrollo corporal y cognitivo, con una incidencia de 1 en 1.000 a 1.100 nacidos vivos. Este estudio evaluó el rendimiento aeróbico de para deportistas con síndrome de Down en atletismo de medio fondo adaptado, utilizando el Test de 1.000 metros y el Test de Cooper. El estudio incluyó a 9 participantes de FUNDISDOWN en Sincelejo, con edades entre 18 y 50 años. Las pruebas se realizaron en condiciones controladas para asegurar una correcta hidratación y descansos adecuados. Se implementaron protocolos de seguridad con personal capacitado y equipo de primeros auxilios. La prueba de 1.000 metros mide la capacidad aeróbica basándose en el tiempo empleado para recorrer la distancia, mientras que el Test de Cooper evalúa la distancia recorrida en 12 minutos. Los resultados mostraron que los participantes tenían una edad promedio de 35,1 años, un peso promedio de 62,1 kg y una estatura media de 1,49 metros. En el Test de 1.000 metros, el tiempo promedio fue de 874,3 segundos, y en el Test de Cooper, la distancia media recorrida fue de 582,1 metros.  En conclusión, se recomienda la replicación del estudio con una muestra más amplia y diversa para validar los hallazgos y proporcionar una visión más completa del rendimiento aeróbico en personas con síndrome de Down.
CARACTERIZACIÓN DE LA COMPOSICIÓN CORPORAL DE ESCOLARES DE 6 A 8 AÑOS DE SINCELEJO SUCRE
Authors: Acosta Bohórquez Camilo Andrés , Aguas Villalba Heidy Helena , Pomares Rodríguez William Andrés
Published: January 2025

El objetivo del presente estudio fue determinar el perfil de composición corporal en niños escolares de 6 a 8 años de Sincelejo Sucre, siendo un total de 70 niños. Las variables de composición corporal se tomaron fueron talla (cm), masa corporal (kg), porcentaje de grasa (%Grasa), masa libre de grasa (MLG). Se ejecutó bajo el protocolo de Slaughuter para hallar %grasa y proceso mediante el SPSS 29. Los resultados apuntan hacia las diferencias significativas (p<0,05) entre edades para la masa corporal entre 6 y 8 años, el %Grasa en todas las edades y la MLG en todas las edades, Para el desarrollo se utilizó la metodología de ANOVA y el post-hoc de Scheffé para determinar la media y la relación significativa por grupos de edades. Se concluye que la relación para la composición corporal sea una propuesta que pueda permitir y categorizar de forma objetiva la composición corporal por edades.
USO DE LA MATRIZ DE PERFIL COMPETITIVO (MPC) EN LA VALORACIÓN DE AGRUPACIONES Y EQUIPOS DEPORTIVOS
Authors: Hidalgo Reyes Pedro , Zayas Martínez Magalys , Pavón Figueredo Manuel de Atocha
Published: January 2025

La matriz de perfil competitivo (MPC) es una herramienta estratégica que permite comparar y valorar organizaciones y empresas. En el presente artículo se empleó esta técnica para valorar agrupaciones deportivas de categorías pioneriles y escolares, en el combinado deportivo “Jesús Menéndez”, del municipio Bayamo, en Granma, Cuba. Los deportes objeto de estudio fueron: béisbol, béisbol 5, voleibol de sala, voleibol de playa y bádminton. Para ese fin, se seleccionaron como factores clave de éxito: la cantidad y calidad de la matrícula deportiva y fuerza técnica, así como  el número y calidad de las instalaciones y recursos para la práctica. Se emplearon además, como método teórico el Analítico-sintético, para el procesamiento y valoración los fundamentos teóricos; entre empíricos, el análisis de documentos y la observación, fundamentalmente. También resultaron válidas las técnicas: tormenta de ideas, reducción de listados y comparaciones apareadas, en la selección de los factores clave de éxito y en la puntuación otorgada a cada equipo estudiado. Los resultados de la valoración precisa de cada deporte, a través de la identificación aspectos fuertes y débiles en áreas básicas, posibilitó a directivos y entrenadores elaborar opciones estratégicas y acciones más pertinentes
Estandarización de las definiciones de consumo ético, consumo responsable y consumo sustentable por análisis semántico, y tipología del consumo sustentable
Authors: Picard Mélanie Sarah , Manfredi Luciana Carla , Ávila-Montes de Oca Octavio Antonio
Published: January 2025

Este artículo pretende contribuir a una mejor organización del conocimiento mediante una propuesta de estandarización del vocabulario y una tipología de las prácticas de consumo sustentable de bienes tangibles. La literatura cuenta con varios calificativos para señalar un consumo que presente la característica de ser benéfico para el medioambiente, así como para el entorno social. Algunos de ellos son: el consumo ético (CE), el consumo responsable (CR), y el consumo sustentable (CS). A menudo, estos términos se ocupan de forma indistinta, ocasionando confusión para i-nvestigar, comparar o consolidar estudios. Sin embargo, se trata de conceptos lingüísticamente distintos y lo pertinente sería seleccionar el calificativo que corresponda con precisión al objeto de estudio. Para lograr el objetivo del presente trabajo, se realizó una revisión bibliográfica que nos permitiera identificar las principales definiciones de la literatura académica y se buscó apoyo en la semántica, para establecer una definición precisa para cada término. Derivado de lo anterior y como aportación adicional al estado del arte, se propone una tipología de las prácticas asociadas al CS de bienes tangibles, distinguiendo el CS por tipo de producto, el CS por tipo de canal, el CS por comercio colaborativo, y el CS no monetario. De aplicarse al campo de la administración sustentable, estas definiciones y tipología de CS aportarían una mejoría notable en la estructura del conocimiento procedente de futuras investigaciones.
Assessment of face image quality for improvement of recognition system with machine learning
Authors: Choudhary Parul , Pathak Pooja , Gupta Phalguni
Published: January 2025

Face recognition systems are crucial in security and surveillance. However, their effectiveness depends on the quality of input face images. This paper introduces a novel Face Image Quality Assessment (FIQA) framework to enhance recognition accuracy. It evaluates image quality using various factors and combines them to classify the face quality index. The technique is evaluated on the Color-Feret dataset, outperforming existing methods with a strong correlation (0.95) between system and human scores.
Sector metalmecánico: una propuesta de diseño de estándares de métodos y tiempos
Authors: Mendoza-Galvis Darwin José , Vega-Molina Adriana Lorena , Pumarejo-Sanchez Jonattan , Zambrano Carlos Mario
Published: January 2025

El presente artículo analiza la implementación de un sistema estandarizado de procesos de producción en la industria metalmecánica, específicamente en pequeñas y medianas empresas (Pymes) de Valledupar, con el objetivo de alinear estos procesos con los principios de cero despilfarros. Se realizó un estudio de métodos y tiempos, enfocándose en los productos más vendidos como ventanas y puertas, para optimizar la disposición de la planta y mejorar la eficiencia del proceso productivo. Los resultados mostraron una reducción en el tiempo de operaciones de 169.62 a 155.7 minutos, una disminución en el número de procesos de 37 a 35, y una reducción en la distancia total de desplazamiento de 95.9 metros a 42.4 metros. Además, se ajustaron los tiempos estándar de trabajo, equilibrando la carga de trabajo y mejorando la productividad. La investigación concluye que la estandarización y optimización de procesos son fundamentales para mejorar la competitividad y eficiencia de las Pymes en el sector metalmecánico.
Análisis del impacto socioeconómico de la pandemia en vendedores informales del Huila
Authors: Celis-Murcia Luz Mery , Ochoa-Montoya Sandra Patricia , Giraldo-Cerón Yonth Jairo , Valencia-Rivera William , Chacón-Jansasoy Diana Catherine
Published: January 2025

El propósito de este estudio es describir el impacto socioeconómico y financiero que enfrentaron los vendedores informales, estacionarios y semi-estacionarios, en los municipios de Neiva, Garzón y Pitalito, en el departamento del Huila, como consecuencia de la pandemia del COVID-19 durante 2020 y 2021. La metodología utilizada fue un enfoque mixto, recolectando datos a través de encuestas online, con un muestreo intencional para la selección de los vendedores. El estudio, de carácter descriptivo, analizó las problemáticas económicas y sociales de esta población. Entre los resultados, se destaca que la mayoría de los encuestados tienen entre 46 y 59 años, lo que sugiere una mayor presencia de adultos mayores en el comercio informal, posiblemente por dificultades para acceder a empleo formal. La tenencia de vivienda predominante es en modalidad de arriendo, lo que refleja grandes necesidades insatisfechas y una vulnerabilidad económica acentuada por la significativa disminución de ingresos debido al cese de actividades comerciales durante la pandemia. En las conclusiones, se evidencia que el género femenino predominó en el desarrollo del proyecto, mostrando mayor incidencia en los resultados. Además, se observó una alta disminución del nivel de ingresos, poca participación en la política pública y un alto nivel de endeudamiento. La población presenta un bajo nivel educativo, con pocos individuos que completaron la educación media, subrayando así la precariedad socioeconómica de los vendedores informales en este contexto.
Adiestramiento virtual en las competencias matemáticas a través de la plataforma Khan Academy
Authors: Gordon-Hernández Yimy , Valle-Fuentes Harold , Gordon-Araujo Juan Pablo
Published: January 2025

El propósito del articulo radica en la creación de cursos de adiestramiento virtual en la plataforma Khan Academy, a partir de los resultados del rendimiento académico de los estudiantes que entran a primer semestre de Universidad, en competencias Matemáticas. La metodología fue de diseño no experimental, transeccional, nivel explicativo y tipo de campo. La población y muestra fue de (189) estudiantes, con instrumento validado por cinco expertos en el área, escala tipo Likert. A partir del análisis de resultados, se crearon los cursos de adiestramiento virtual en matemáticas. Acorde con el estudio se obtuvo que el 31 % de la población estudiantil posee un nivel de desempeño de (0-35), donde el estudiante probablemente puede leer información puntual. En nivel (36-50), se encontró el 31% de la población, donde el estudiante es capaz de comparar y establecer relaciones entre datos presentados. En nivel (51-70), se presentó un 19%, donde el estudiante selecciona información, señala errores y hace distintos tipos de transformaciones y manipulaciones aritméticas y algebraicas sencillas. Por último, en nivel (71-100), fué un 20%, aquí se resuelven problemas y justifican la veracidad o falsedad de afirmaciones que requieren el uso de conceptos de probabilidad, propiedades algebraicas, relaciones trigonométricas y características de funciones reales.
Metodología PHVA para el mejoramiento de la gestión de los procesos en una empresa de Productos Naturales
Authors: García-Juárez Hugo Daniel , Bustamante-Ochoa Carlos , Del Carpio-Delgado Fabrizio , Bravo-Chávez Yrene Maribel
Published: January 2025

En el contexto actual la producción como factor esencial busca ser desarrollada en muchas empresas a través de modelos que contribuyan a la disminución de tiempos en rotación mercaderías, número de productos defectuosos y mayor productividad, La presente investigación se ejecutó con el propósito de implementar la metodología PDCA para el mejoramiento de la gestión de los procesos en una empresa de productos naturales. La investigación tuvo un enfoque mixto(cualitativo y cuantitativo), de tipo aplicado, con alcance explicativo y diseño cuasi experimental. Se tomó como objeto de estudio los procesos misionales y procesos de apoyo de una empresa procesadora de productos naturales. Las técnicas de recolección empleadas fueron la observación directa y la revisión documental con instrumentos como la guía de observación y el registro de información documental. En base al diagnóstico inicial, la implementación y el análisis comparativo se obtuvo un aumento de productividad de 0.632 a 1.644 bolsas/sol; el índice de centralización a la estrategia disminuyó de 4 a 0.8, así como el índice para el control de procesos aumentó de 75.35 % a 80.37 %. De igual forma, se observó una mejor gestión, la cual generó una disminución de tiempos de rotación promedio de 16 a 10 días, un menor número de productos defectuosos y un mejor desempeño laboral. Se concluyó que la metodología PDCA, permitió la mejora de la gestión de los procesos, contribuyendo además en las relaciones y el clima laboral.
Comprehensive deformation study in the new Austrian tunneling technique tunnel utilising artificial neural network model
Authors: Kanojiya Shubham , Mehta Gopal Krishna
Published: January 2025

Ground deformation during tunneling projects is one of the complicated concerns that must be constantly monitored to prevent unanticipated damages and human losses. In addition to conventional approaches, several intelligent methods, like ANN, have recently been used for different tunnel challenges. Geological elements such as thrust zones, folded rock sequences, shear zones, rock cover, in-situ tensions, water ingress, gas ingress, geothermal gradient, and significant seismicity all present difficulties during digging. These difficulties have a substantial influence on the routine functioning of the tunnel as well as traffic safety. To address these issues, the authors recommended using ANNs from many elements of tunnel engineering. The new Austrian tunneling technique (NATM) has shown to be a highly affordable and versatile mode of construction, and as a result, it has become the most common tunneling construction method utilized in the building of the double-arched tunnel. In this work, the MATLAB program was utilized to generate the results, which comprised training and testing datasets. The experimental results demonstrate that the suggested model's values for R2, Bias, Mean Absolute Percentage Error (MAPE) and Root Mean Squared Error (RMSE), with training data are 18.56, 0.98, 1.05, and 0.08, respectively. The suggested RMSE, R2, Bias, and MAPE values for the test dataset were 19.89, 0.98, 1.05, and 0.09.
La cultura organizacional y su efecto motivacional en los trabajadores de una empresa privada
Authors: Pérez-Pérez Milagros Judith , Castro-Mejía Percy Junior , Oyola-Fernández Maximiliano , Peña-Rivera María del Carmen , Ruiz-Guerrero Marli
Published: January 2025

El objetivo de la investigación fue analizar la cultura organizacional y su efecto motivacional en los trabajadores de una empresa privada. El estudio tuvo un enfoque cuantitativo y fue del tipo aplicado, con un diseño no experimental, transversal y correlacional. La población estuvo conformada por 100 individuos y se realizó un muestreo probabilístico aleatorio simple, donde el universo de estudio tuvo las mismas probabilidades de ser seleccionado, dando como resultado la aplicación del instrumento a 80 trabajadores de la empresa privada. Para la recolección de datos se utilizó la técnica denominada encuesta, siendo su instrumento el cuestionario con 36 preguntas basadas en las variables de estudio y 5 opciones de respuesta para cada una según una escala tipo Likert, las cuales fueron respondidas en línea por los colaboradores. Los resultados reflejan una correlación significativa entre la cultura organizacional y el efecto motivacional de los trabajadores, con un coeficiente de correlación de Spearman de 0,504** y un valor de p de 0,000. Esto indicó que la cultura organizacional tiene una influencia reveladora en la motivación de los trabajadores de la empresa privada.
Arsenic contamination of natural waters, soils and food products in Georgia
Authors: Shavliashvili L. , Kuchava G. , Tabatadze Mariam , Shubladze E. , Buachidze N.
Published: January 2025

Arsenic contamination of natural waters, soils, and food products in Georgia is discussed in this paper. Samples of rivers and artesian waters, as well as suspended solids and bottom sediments, were taken and analysed. Soil samples were selected from polluted, agricultural, recreational and background sites.  Arsenic content was determined in water and soil samples, as well as in food products. Furthermore, the hydrochemical and microbiological characterisation of rivers (Lukhuni and Tskhenistskali), artesian and spring waters in the vicinity of arsenic processing enterprises of Racha-Lechkhumi and Kvemo Svaneti region were conducted. Analyses were carried out using modern methods and equipment that meet and correspond to international standards. Based on the received data, a map of arsenic contamination of the soils of the Racha-Lechkhumi and Kvemo Svaneti regions was compiled in the GIS system. This review is undertaken to give an overview of the latest findings on the issue of soil, water and food products. The most vulnerable points of soil arsenic contamination have been identified in the areas adjacent to arsenic factories in the research region, From the agricultural fields to the villages of Abari and Likheti, where phytoremediation was carried out.
Signaling theory vis a vis bankruptcy prediction model in islamic bank industry in Indonesia
Authors: Kurnia Rahmat , Nugroho Lucky , Janee Ali Anees
Published: January 2025

This study aims to analyze the difference in the results of bankruptcy predictions in Islamic banking in Indonesia with the research period of 2018-2022. This study uses a quantitative approach, with a sample number of 11 Islamic banking companies. The bankruptcy prediction results compared in this study include Zmijewski, Grover, and Altman Z-Score Modified. Furthermore, the results of this study show that the three calculation models have differences in predicting the bankruptcy of Islamic banks. (1) The Zmijewski model analyzes five samples to be on the criteria of potentially bankrupt and six on the criteria of safe or healthy. (2) Grover's model analyzed 11 samples on safe or healthy criteria. (3) The Altman z-score Model Modification analyzes five samples on the safe or healthy criteria, five on the gray area criteria, and one on the potentially bankrupt criteria. The implication of this study is as a reference and information to stakeholders who focus on measuring the performance of Islamic companies and banks specifically. In addition, the novelty of this research is to compare the results of bankruptcy prediction models in Islamic banks that have never been done in the period 2018 to 2022.
Ethical leadership and firms’ sustainability: mediating role of corporate social responsibility in Pakistan’s banking sector
Authors: Shaukat Hafiza Safia , Janee Ali Anees
Published: January 2025

The sustainability of businesses has emerged as a pressing concern in the competitive landscape. To tackle this issue, the present study aims to explore the role of ethical leadership in determining the sustainability of private banking institutions in Pakistan, with corporate social responsibility (CSR) serving as the mediator. The research utilized data from 232 middle and upper-level private bank employees in Pakistan. The statistical tools SPSS and SmartPLS were employed for data analysis, and a structural equation model was used to test the study hypotheses. The findings indicate a positive and significant impact of ethical leadership on firms' sustainability. Furthermore, CSR significantly and positively mediates the relationship between ethical leadership and firms' sustainability. This study provides valuable insights into the fields of organizational behavior, leadership, and sustainable business practices. The results shed light on the mechanisms through which ethical leadership influences CSR practices and the sustainability of private banking institutions in Pakistan. The study has implications for policymakers, practitioners, and academic researchers to promote sustainable and socially responsible business practices in the private banking sector of Pakistan.
A study related to the role of training and development in employee and organizational performance
Authors: Jha Sneha , Sachdeva Lalit
Published: January 2025

The topic of interest pertains to the domain of Training and Development (T&D), specifically focusing on the concept of on-the-job training. Training, training design, and delivery style are widely recognized as crucial elements in the field of organizational studies. The performance of employees has a significant influence on the financial outcomes of a firm. Most organizations utilize Training and Development (T&D) strategies to improve work performance, efficiency, effectiveness, and managerial oversight. The performance of employees has a crucial role in determining the operational efficiency and effectiveness of an organization. As a result, T&D is considered a vital component in this regard. The purpose of this study is to evaluate the effects of Training & Development on both organizational performance (OP) and employee performance. The process of data collection involved the utilization of both primary data collection methods, such as questionnaires and interviews, as well as secondary data collection methods. A total of 280 male and female employees were chosen through a random sample technique across the Delhi NCR region. Consequently, the objective of T&D is to enhance performance levels for both the individual and the organization. To uphold a superior level of staff performance and overall effectiveness, a firm must establish and sustain an ongoing T&D program. T&D can manifest in numerous diverse forms. For an organization to derive advantages from T&D, it is imperative to carefully select the form that aligns most closely with its specific objectives and aspirations. The findings indicate a positive impact of T&D on both employee performance (EP) and organizational performance. T&D play a substantial role in influencing personnel.
El rol de la familia en los procesos de inclusión educativa
Authors: Charrupe-Rodriguez Angy Marcela , Mora-Ramirez Maria Angelica , Suárez-Hernández Yurley Karolina
Published: January 2025

El proyecto de investigación que sustenta el presente artículo tiene como objetivo implementar un plan formativo orientado al fortalecimiento del rol de la familia en los procesos de inclusión en una institución educativa pública de la ciudad de Cúcuta. Así el estudio se apoya en la investigación aplicada, bajo un enfoque cualitativo que integra la investigación acción como diseño metodológico y el grupo focal como técnica de recolección de la información. La población vinculada corresponde a 90 participantes con vinculación familiar a los estudiantes de grados transición, primero y segundo de una institución educativa pública de la ciudad de Cúcuta. Cómo resultados se cuentan con el diseño e implementación de estrategias pedagógicas que articulan elementos de orden epistemológico, curricular y didáctico en el marco de la promoción de procesos incluyente en el ámbito educativo, de forma particular desde la perspectiva de la familia.