bluuebunny/crossref_metadata_2025 huggingface dataset:
Estrategias para la enseñanza de los estudiantes con necesidades educativas especiales
Authors: Gavilanes Sany Deisi Gissela , Pin Alcívar Letty Adelaida
Published: July 2024

En la mayoría de las instituciones del territorio existe un bajo rendimiento académico en los estudiantes con necesidades educativas especiales, por lo que se debe promover la conciencia, la sensibilidad y el compromiso con la educación inclusiva. El objetivo es proponer estrategias de enseñanza con el fin de impulsar el aprendizaje significativo de los estudiantes con necesidades educativas especiales en la Unidad Educativa Fiscomisional Cinco de Mayo. La metodología empleada tiene un enfoque mixto que involucra a todos los actores que intervienen en el proceso de enseñanza, para ello se aplicó la revisión bibliográfica y la encuesta a una muestra de 35 estudiantes, en la cual se encontró la necesidad de la aplicación de unas estrategias de enseñanza efectivas que se adapten a las dificultades de aprendizaje que presentan los alumnos dentro del aula. Por este motivo se presenta el uso de las estrategias lúdicas como propuestas para mejorar la eficiencia en los procesos de enseñanza-aprendizaje suministrados por los docentes, teniendo como resultado que el desempeño docente es necesario en los procesos de formación estudiantil, por lo cual, estos deben adaptar sus estrategias de enseñanza a las distintas necesidades que presenten cada uno de los estudiantes para la construcción de sus conocimientos a través del aprendizaje significativo.
Las implicaciones de las estrategias didácticas lúdicas en el desarrollo de la creatividad de niños y niñas de 2 a 3 años
Authors: Chela Coyago Oswaldo Fabián , Holguín Carrillo Hilda Natividad , Galeas Guevara Liana Raquel , Moncayo Muñoz Peggy Lilly
Published: July 2024

El presente trabajo explora las implicaciones de incorporar estrategias didácticas lúdicas en la educación temprana, un periodo crucial donde se asientan las bases del pensamiento creativo. En este sentido, el objetivo del ensayo es analizar estrategias didácticas lúdicas para el desarrollo de la creatividad de niños y niñas de 2 a 3 años. Para esto, se inserta en un marco teórico que considera el juego como una herramienta pedagógica fundamental, capaz de transformar el proceso educativo en una experiencia significativa y profundamente enriquecedora para los niños. En donde se definen a las estrategias didácticas lúdicas y al desarrollo de la creativa como elementos fundamentales para la formación de los docentes de educación inicial. En efecto, en las conclusiones se deja en claro que las estrategias didácticas lúdicas son indispensables en el proceso educativo, debido a que desarrollan la creatividad en los niños y niñas, además se agrega el hecho de que el juego es una herramienta de aprendizaje y de dinamización dentro del aula de clases.
Importancia de reducir el estrés laboral en los docentes
Authors: Mero Macías Vanesa Guadalupe , Maldonado Jaramillo Jimena del Rosario , Galeas Guevara Jessica Jacqueline , Ríos Silva Mayra Alexandra
Published: July 2024

El ensayo tiene como objetivo explorar la importancia de reducir el estrés docente, no solo como una medida de bienestar laboral, sino como una estrategia crucial para mejorar la calidad de la educación. A partir de lo mencionado, se propone una revisión de la literatura en la que se aborda el concepto de estrés docente y se lo relaciona con sus síntomas, causas y consecuencias. Al mismo tiempo se agrega como un elemento importante la concepción de estrategias que serían útiles para reducir el estrés en los docentes para que puedan realizar un mejor quehacer educativo. Por otro lado, es relevante mencionar que se agregan estadísticas en la que demuestran que en América Latina los docentes presentan estrés en un 65%, lo cual es un indicador sobre la necesidad de estudiar este problema y plantear soluciones. Finalmente, en las conclusiones se presentan las reflexiones sobre la importancia de reconocer al estrés docente como un problema de salud que afecta la calidad de la educación.
Influencia del juego como recurso didáctico en la enseñanza de la asignatura de matemáticas
Authors: Alcívar Mata Patricia Johanna , Táquez España Eva Leonor , Verdesoto Yucailla Gissela Magdalena , Vera Fernández Lourdes Liceth , Fernández Sánchez Maggally Lourdes , Maldonado Paladines Jaime Enrique
Published: July 2024

El presente trabajo de investigación se centra en la importancia de la matemática dentro de la educación básica, sobre todo, a la metodología en cómo se enseña y se aprende esta asignatura. Por ello, se tuvo como objetivo analizar la percepción de los estudiantes sobre la aplicación de juegos para el aprendizaje de la matemática. Dentro de la metodología se menciona que este estudio fue cuantitativo, mediante la aplicación de la investigación descriptiva y explicativa con la intención de comprender el objeto de estudio. La muestra se conformó de 32 estudiantes de cuarto año de educación general básica y se aplicó una encuesta de 5 preguntas. Los datos obtenidos fueron analizados por medio de tablas estadísticas. En los resultados se evidencia que los estudiantes tienen una alta aceptación del juego como parte de las clases de matemática, por lo cual, se concluye que los docentes deben aplicar dentro de su metodología una didáctica lúdica y adecuada a las características de los estudiantes.
A REVIEW OF IMPLEMENTING AI-POWERED DATA WAREHOUSE SOLUTIONS TO OPTIMIZE BIG DATA MANAGEMENT AND UTILIZATION
Authors: Uddin Md Kazi Shahab ,   Master’s of Science in Information Technology, Washington University of Science and Technology, Virginia, USA, Hossan Kazi Md Riaz ,   Master’s of Science in Information Technology, Washington University of Science and Technology, Virginia, USA
Published: July 2024

This review examines the implementation of AI-powered data warehouse solutions to optimize big data management and utilization, analyzing 25 peer-reviewed articles published over the last decade. As organizations increasingly rely on vast amounts of data for strategic decision-making, traditional data warehousing techniques have struggled to keep pace with the volume, variety, and velocity of modern data. The integration of artificial intelligence (AI) into data warehousing processes has emerged as a critical advancement, enhancing data processing efficiency, accuracy, and scalability. This study synthesizes findings from the literature to highlight key benefits such as automated data extraction, transformation, and loading (ETL) processes, real-time analytics, and improved data quality through advanced cleansing and anomaly detection. Additionally, it identifies significant challenges including data security risks, integration complexities, and the need for specialized skills and substantial investments. The review concludes with recommendations for future research and practical applications, emphasizing the importance of strategic planning and robust security measures to fully leverage AI's potential in revolutionizing data warehousing.
Welcome to ChemSci Advances
Authors: Patil Rahul ,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India, Chougale Ashok ,   Department of Physics, Shri Yashwantrao Patil Science College Solankur, Shivaji University Kolhapur, 416212 India
Published: July 2024

Welcome to the inaugural issue of ChemSci Advances, a pioneering journal at the forefront of advancing the chemical sciences. We are thrilled to introduce this platform dedicated to fostering innovation, collaboration, and excellence in the field of chemistry. ChemSci Advances aims to provide a dynamic forum for researchers, scholars, and practitioners from diverse backgrounds to share their groundbreaking research, insightful perspectives, and innovative methodologies. Our interdisciplinary approach encompasses all areas of chemistry, from fundamental principles to applied technologies, with a focus on addressing pressing societal issues and driving sustainable development. ChemSci Advances stands as a beacon of interdisciplinary collaboration, bridging various disciplines within chemistry and related fields. In this inaugural edition, we present a diverse array of high-quality articles, including original research, comprehensive reviews, and insightful communications. These contributions exemplify the breadth and depth of research excellence within the chemical sciences, covering a wide range of topics and methodologies. Each article represents a significant step forward in advancing our understanding of the chemical sciences and unlocking new possibilities for innovation and discovery. We invite researchers and scholars from around the world to join us in shaping the future of chemical sciences by submitting their groundbreaking research to ChemSci Advances. Together, we can catalyze innovation and progress in chemical sciences, addressing global challenges and driving technological advancements.
Efficient Dye Removal Strategies: Exploring the Role of Biochar
Authors: Chavan Rupali ,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India, Patil Rahul , Chougale Ashok ,   Department of Physics, Shri Yashwantrao Patil Science College Solankur, Shivaji University Kolhapur, 416212 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India
Published: July 2024

The surge in industrial activities, notably in sectors such as textiles, leather processing, and paper manufacturing, has led to a considerable rise in synthetic dye discharge into the environment, posing significant threats to ecosystems and human health. Traditional wastewater treatment methods have struggled to effectively address dye pollution due to the complex nature of these pollutants. In response, biochar has emerged as a promising solution, offering unique physicochemical properties that make it an excellent adsorbent for dye removal. This review explores the role of biochar in dye removal, focusing on its surface properties, production methods, and adsorption mechanisms. Biochar's extensive surface area, porosity, and surface functional groups play crucial roles in facilitating dye adsorption. Various production methods, such as pyrolysis, hydrothermal carbonization, and superheated steam torrefaction, influence biochar properties and effectiveness in dye removal applications. Surface modification techniques enhance biochar's dye removal capacity and regeneration potential, enabling its reuse in wastewater treatment. Moreover, the surface charge of biochar influences electrostatic interactions with dye molecules, affecting adsorption efficiency. Understanding biochar's surface charge is essential for optimizing dye removal processes. Overall, biochar holds promise as a sustainable and efficient adsorbent for mitigating dye pollution, offering valuable insights for environmental remediation efforts.
Ni-Doped LaFeO3 Microspheres Composed of Nanoparticles for the Photocatalytic Degradation of Organic Dye
Authors: Mulani Sameena R. ,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India, Bimli Santosh , Bunkar Rajendra , Samatham Manopriya , Choudhary Ekta , Patil Ajay , Yadav Suman , Yadav Ankit , Jadhav Harshada , Miglani Aayushi ,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Physics, Shri Yashwantrao Patil Science College Solankur, Shivaji University Kolhapur, 416212 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Chemistry, The New College Kolhapur, Shivaji University Kolhapur, 416012 India,   Department of Physics, Shri Yashwantrao Patil Science College Solankur, Shivaji University Kolhapur, 416212 India
Published: July 2024

Ni-doped LaFeO3 (LFO) microsphere consisting of nanoparticles are synthesized by the hydrothermal route and used for the degradation of Rhodamine B (RhB) organic dye. The structural, morphological, and optical analysis is confirmed by the various characterization techniques, i.e., X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and UV-Visible spectroscopy. The all Ni-doped LFO catalyst shows excellent efficiency towards the photocatalytic degradation of RhB dye. LFNO-0.2 catalyst shows the highest degradation efficiency of 89.44% with rate constant (k) and correlation coefficient (R2) of 0.013304 min-1 and 0.989, respectively. The radical scavenging suggests the active involvement of O2- and h+ participates in the efficient degradation. Moreover, the material possesses excellent cyclic stability for the continuous Xenon lamp exposure of 540 min. Overall, the Ni-doped LFO can serve as one of the finest materials for wastewater remediation by means of photocatalytic dye degradation.
Electrodeposited Tungsten Trioxide (WO3) Thin Films for Electrochromic Applications
Authors: Chavan P. S. ,   Department of Physics, Yashavantrao Chavan Institute of Science Satara (Autonomous) Satara, Maharashtra, 415001 India., Shedge P.S. , Deshmukh S.S. , Bhandalkar R. R. , Sutar S.H. , Mujawar S. H. ,   Department of Physics, Yashavantrao Chavan Institute of Science Satara (Autonomous) Satara, Maharashtra, 415001 India.,   Department of Physics, Yashavantrao Chavan Institute of Science Satara (Autonomous) Satara, Maharashtra, 415001 India.,   Department of Physics, Yashavantrao Chavan Institute of Science Satara (Autonomous) Satara, Maharashtra, 415001 India.,   Department of Physics, Yashavantrao Chavan Institute of Science Satara (Autonomous) Satara, Maharashtra, 415001 India.,   Department of Physics, Yashavantrao Chavan Institute of Science Satara (Autonomous) Satara, Maharashtra, 415001 India.
Published: July 2024

The need of smart and innovative technology with energy saving approach is the main and serious concern while dealing with fastest growing urbanization and civilization. The smart technologies like electrochromic supercapacitors are beneficial in multifunctional way by providing energy storage systems with visual and reversible colour changes in many applications such as smart windows, electrochromic goggles, automotive mirrors, sunroofs, displays and so on. Herein, nanoporous WO3 thin film is prepared by using cathodic electrodeposition technique and used to study electrochromic as well as electrochemical properties. The bi-functionality of the electrode was confirmed by electrochemical tests including CV, GCD, EIS and chrono methods. The film shows greater coloration efficiency up to 52.61 cm2/C with an aerial capacitance 2.8 mF /cm2. Also, film shows faster switching kinetics as faster coloration and bleaching times like 1.88 and 2.6 s respectively. Hence, electrodeposited WO3 can be a good candidate for bi-functional electrochromic supercapacitors.
Fabrication and Characterization of High-Capacity Manganese Oxide Based Supercapacitor Electrode
Authors: Parveen Nazish ,   Department of Chemistry, College of Science, King Faisal University, P.O. Box 380, Hofuf, Al-Ahsa 31982, Saudi Arabia, Ansari Sajid Ali ,   Department of Physics, College of Science, King Faisal University, P.O. Box 400, Hofuf, Al-Ahsa 31982, Saudi Arabia
Published: July 2024

Considerable attention has been directed towards the development of manganese oxide materials capable of simultaneously offering ample surface area and facilitating charge movement to enhance capacitance performance. In this study, oval-shaped manganese oxide (OS-MO) was synthesized via a straightforward hydrothermal method, followed by comprehensive characterization using various microscopic and spectroscopic techniques. The electrochemical supercapacitive performance of the resulting OS-MO-based electrode was evaluated in a three-electrode assembly workstation employing cyclic voltammetry and galvanostatic charge-discharge methods. The experimental findings revealed that OS-MO achieved an impressive specific capacitance of 629.62 Fg-1. Furthermore, the cyclic stability of OS-MO remained consistently high at approximately 89% over 1000 cycles at a fixed current density. These results suggest that the superior performance and stability of OS-MO can be attributed to its porous nature and high surface area. Consequently, OS-MO emerges as a promising candidate for applications in energy storage systems.
Innovations in Starch Based Bioplastics: A Comprehensive Review of Methods and Applications
Authors: Kour Manmeet ,   Department of Chemistry, Panjab University, Chandigarh 160014, India., Kumar Rajeev , Chaudhary Savita ,   Department of Environmental Studies, Panjab University, Chandigarh 160014, India.,   Department of Environmental Studies, Panjab University, Chandigarh 160014, India.,   Department of Chemistry, Panjab University, Chandigarh 160014, India.
Published: July 2024

The depletion of fossil fuel resources and their associated effects, such as greenhouse gas emissions, global warming, and environmental pollution, have prompted researchers to explore the bioeconomy in innovative ways. The concepts of sustainability and the circular economy have shifted the focus of research from mere development to development that also prioritizes environmental protection, known as sustainable development. Conventional plastics, derived from petroleum, can take hundreds of years to degrade naturally, thus harming the local environment. Bioplastics, which are biopolymers sourced from biological materials, offer the advantage of biodegradability in natural environments and are considered a virtuous replacement for conventional plastics. Starch, an abundant and low-cost biopolymer, is a promising material for bioplastics. However, starch-based bioplastics often fall short in practical applications due to limited mechanical and barrier properties. Effective solutions include copolymerization, the addition of fillers, plasticization, and chemical modification. This review focuses on starch-based bioplastics, enhanced with cellulose, polylactic acid, and polyhydroxyalkanoates, and their applications in food packaging, medical, and electronic sectors.
https://aristonpubs.com/innovations-in-starch-based-bioplastics-a-comprehensive-review-of-methods-and-applications/
Authors: Kaur Gurleen ,   Department of Chemistry, Maharishi Markandeshwar (Deemed to be University, Mullana-133207, Devi Anu , Kumar Raman , Agnihotri Nivedita ,   Department of Chemistry, Maharishi Markandeshwar (Deemed to be University, Mullana-133207,   Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University, Mullana-133207,   Department of Chemistry, Maharishi Markandeshwar (Deemed to be University, Mullana-133207
Published: July 2024

Environmental challenges related to water quality are not unique to impoverished nations, but are also among the most fundamental human demands worldwide. The need for clean water and power is growing by the day. Wastewater is seen as a source of both water and energy. Because of the high energy requirements and high cost, current wastewater treatment systems are associated with limitations. It is vital to create a technology that can produce viable alternatives to current energy resources. Microbial fuel cells (MFCs) are a cutting-edge technology, which have been developed and are now undergoing extensive research in order to treat wastewater sustainably. Showcasing a promising future as a sustainable method, microbial fuel cell (MFC) technology recovers energy and nutrients simultaneously to create bioelectricity, which uses the power of electro-genic microbes to oxidize organic contaminants found in wastewater. Sustainable MFC implementations may be a practical solution for carbon sequestration, biohydrogen synthesis, wastewater treatment, environmentally sustainable sewage treatment and green power production due to the constraints of traditional wastewater treatment. However, because to the challenge of balancing yield with total system upscaling, MFC electricity production remains a significant obstacle for practical applications. The advancements in MFC technologies are covered in this chapter, including modifications to their structural design, incorporation of various novel anode and cathode materials, diverse microbial community interactions and substrates to be utilized and the elimination of contaminants. Additionally, it concentrates on offering crucial insights and examining different applications and futuristic facets of MFCs connected to wastewater treatment and consequently, sustainable resource recovery. By the study we anticipate the industrialization of MFCs in the near future with proper planning and additional research, believing that this would result in cleaner fuels and a better environment for all people.
Biodegradation of Malachite Green Dye by Novel Isolated Bacillus Species AAV from Garden Soil
Authors: Morris Akshi E ,   Biotechnology and Pharmaceutical Division, MITCON Forum for Social Development, DSIR-SIRO Recognized Laboratory (Govt. of India), Shivajinagar, Pune 411005, MS, India, Patil Advait , Sadekar Shraddha , Choudhury Ankita , Munde Mahadevi , Chougale Ashok D , Kurade Mayur , Jeon Byong-Hun , Tanpure Rahul , Agawane Sachin , Dawkar Vishal ,   Biotechnology and Pharmaceutical Division, MITCON Forum for Social Development, DSIR-SIRO Recognized Laboratory (Govt. of India), Shivajinagar, Pune 411005, MS, India,   Sadekar Enviro Engineers Pvt. Ltd., Plot No. A-95, Road No. 16, Kisan Nagar Road, Wagle Industrial Estate Area, Thane 400604, MS, India,   Biotechnology and Pharmaceutical Division, MITCON Forum for Social Development, DSIR-SIRO Recognized Laboratory (Govt. of India), Shivajinagar, Pune 411005, MS, India,   Biotechnology and Pharmaceutical Division, MITCON Forum for Social Development, DSIR-SIRO Recognized Laboratory (Govt. of India), Shivajinagar, Pune 411005, MS, India,   The New College, Kolhapur, Shivaji University, Kolhapur, 416012, India,   Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea,   Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea,   Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea,   Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune 411008, MS, India,   Biotechnology and Pharmaceutical Division, MITCON Forum for Social Development, DSIR-SIRO Recognized Laboratory (Govt. of India), Shivajinagar, Pune 411005, MS, India
Published: July 2024

Malachite green (MG) dye commonly use in textile and paper printing industry to a great extent. Textile effluent released from industries including dyes must be treated before release into the environment due to its toxic nature. In present study, newly isolated bacterial species was able to decolorize MG dye (100%) in 1 h at shaking condition and 94% at static condition. 16S rRNA analysis revealed an isolate as Bacillus sp. AAV. Lignin peroxidase, laccase and tyrosinase enzymes from Bacillus sp. AAV showed significant increased activity during decolourisation. There was 138, 369 and 164% trek in activity of LiP, laccase and tyrosinase after MG decolourization, respectively. Bacillus sp. AAV could decolourise MG efficiently at alkaline pH (8-10) and at 40°C temperature. Biodegradation was monitored by UV-VIS spectrophotometer. Gas chromatography-Mass spectroscopy data was used to propose the degradation pathway of MG dye. The newly isolated Bacillus sp. AAV was able to decolourise ten various types of dyes and textile dye effluent. Phytotoxicity test by using seeds of wheat and sorghum was also carried out to check toxicity of MG dye metabolites. The study reveals that there was no toxicity with respect to tested seeds. This study suggests that Bacillus sp. AAV could be a useful microorganism or its enzyme system for textile dyes and effluent treatment.
Synthesis and Antibacterial Properties of Silver Nanoparticles Derived from Cardiospermum halicacabum Leaves
Authors: Inbanathan S. Stephen Rajkumar ,   Post Graduate and Research Department of Physics, The American College, Madurai, 625002 Tamil Nadu, India, Jeyasekaran Poornima Jeyasekaran , Parveen S. Irfana , Priya S. Shri Tharani , Sneka K. ,   Post Graduate and Research Department of Physics, The American College, Madurai, 625002 Tamil Nadu, India,   Post Graduate and Research Department of Physics, The American College, Madurai, 625002 Tamil Nadu, India,   Post Graduate and Research Department of Physics, The American College, Madurai, 625002 Tamil Nadu, India,   Post Graduate and Research Department of Physics, The American College, Madurai, 625002 Tamil Nadu, India
Published: July 2024

This study investigates the green synthesis of silver nanoparticles (AgNPs) using Cardiospermum halicacabum leaf extract, which acts as both a reducing and stabilizing agent. The biosynthesis approach is eco-friendly and leverages the phytochemical constituents of Cardiospermum halicacabum. Characterization of the synthesized AgNPs was performed using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR), confirming the formation of nanoparticles with desired properties. SEM analysis revealed the morphology and size distribution of the AgNPs, while XRD provided insights into their crystalline nature, and FTIR identified functional groups involved in the reduction and stabilization processes. Despite the successful synthesis of AgNPs, antimicrobial assays indicated that these nanoparticles did not exhibit significant antibacterial activity against tested microorganisms such as Escherichia coli and Staphylococcus aureus. The results suggest that the synthesized AgNPs require further optimization to enhance their antimicrobial efficacy. This study underscores the potential of Cardiospermum halicacabum in green nanoparticle synthesis and highlights the need for continued research to understand the factors influencing the antimicrobial properties of biosynthesized AgNPs, aiming to improve their effectiveness for clinical and industrial applications.
Voltammetric Detection of Diazinon Insecticide at Ferrocene-Graphene/Nafion Modified Glassy Carbon Electrode
Authors: Erdoğdu Gamze ,   İnönü University, Faculty of Arts & Sciences, Department of Chemistry, 44280, Malatya, Turkey
Published: July 2024

In this study, ferrocene was used to modify a glassy carbon electrode, which was fixed with an appropriate amount of nafion solution. The -C-O-C- and -COOH functional groups were detected in the ferrocene/graphene composite, which indicated that graphene was oxidized to graphene oxide, making it more hydrophilic, dispersible and compatible with polymers, thus increasing the diazinon detection rate. The optimal conditions for diazinon detection were found using cyclic voltammetry (CV): a scan rate of 50 mV/s, pH 6.6, and 0.1 mol/L PBS buffer solution. Differential pulse voltammetry (DPV) shows that the concentrations of diazinon are 1×10-6 – 1.2×10-5 mol/L, and there is a good linear relationship between the peak current and the concentration: Ipa (μA)=2.0578 c(μM) -38.2518, R2 = 0.9971; the detection limit is 1.2×10-9 mol/L. This modified electrode has good stability, repeatability and operability and can be applied to detect actual samples.
Synthesis, Spectroscopic, and DFT Studies of Vanadium (III) Hydroxamate Complex with Potential Biological Applications
Authors: Sharma Sonika ,   Department of Chemistry, MLSM College, Sunder Nagar, Himachal Pradesh, India, Sharma Shubham , Kumari Meena ,   Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171005, India.,   Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171005, India.
Published: July 2024

A new vanadium (III) hydroxamate complex of composition V(4- NO2C6H4CH=CHCONHO)3 has been synthesized by reaction of VCl3 with potassium salt of 4-nitrocinnamohydroxamate (4-NO2C6H4CH=CHCONHO) in 1:3 molar ratio in dry methanol solvent. The newly synthesized complex is characterized by elemental analysis, molar conductivity, magnetic moment measurements and IR, UV-Vis spectral studies and mass spectrometry. DFT calculations were carried out by using Orca 4.2.1 program and the negative values of the energies of EHOMO and ELUMO for the V(III) complex confirm its stability. A distorted-octahedral geometry around vanadium center has been suggested for complex based upon physicochemical, spectroscopic and DFT studies, involving bonding through hydroxylamine and carbonyl oxygens (O O coordination). The cyclic voltammogram of the complex shows single anodic and cathodic peak. The TGA/DTA curve indicates the single step decomposion of complex. The biological potential of the ligand and complex have been tested by in vitro antimicrobial studies and cytotoxicity assay. Antimicrobial activity of complex has been found increased as compare to precursor and ligand. The results of cytotoxicity reveal the complex less toxic as compared to standard drug simvastatin.
Catalytic Activity of CuO-bentonite Bead for the Removal of Methylene Blue by Fenton like Process
Authors: Chavan R. R. ,   Department of Chemistry, The New College Kolhapur, Shivaji University, Kolhapur, India., Rathod K. C. , More V. R. , Pawar N.V. , Jadhav J. P. , Patil R. B. , Chougale A. D. ,   Department of Chemistry, The New College Kolhapur, Shivaji University, Kolhapur, India.,   Department of Chemistry, The New College Kolhapur, Shivaji University, Kolhapur, India.,   Department of Botany, The New College Kolhapur, Shivaji University, Kolhapur, India.,   Department of Biochemistry, Shivaji University, Kolhapur, India.,   Department of Physics, Yashwantrao Patil Science College Solankur, Shivaji University Kolhapur, India.,   Department of Chemistry, The New College Kolhapur, Shivaji University, Kolhapur, India.
Published: July 2024

Non-biodegradable dyes, potentially contaminate the water and poses serious risk to the environment. So their removal requires alarming attention. The formation of CuO-bentonite bead and their dye removal application is the main focus of the current investigation. X-ray diffraction spectroscopy (XRD), Field emission scanning electron microscopy (FESEM), and Energy dispersive X-ray spectroscopy (EDS) analysis were implemented to evaluate the crystalline structure and morphology of the prepared sample. The catalytic activity of the CuO-bentonite bead was studied against the dye methylene blue (MB) by an advanced oxidation process like Fenton. The experimental data shows a maximum 94.08 % of the dye removal capacity of the beads in just 20 minutes. Further, for the detail dye removal study optimum environments such as initial MB concentration, pH range, and oxidant dosage were altered during the reaction. Additionally, the CuO-bentonite bead showed 89.03 % dye removal even after five reuse cycles; which exhibits the heightened stability and robustness of the CuO-bentonite bead as a catalyst. Therefore, this simply prepared CuO-bentonite bead revealed a new approach to wastewater treatment.
Investigating the Potential of Gd3+ doped LiBPO4 Phosphors in Improving White Lighting Applications: Synthesis, Characterization, and Analysis of Their Optical Properties
Authors: Khanday Aasim Rashid ,   Solid State Laboratory, Department of Physics, National Institute of Technology (NIT), Srinagar, Jammu and Kashmir 190006, India, Bhat Showket Ahmad , Dar Faheem Ahmad , Ikram Mohd. ,   Solid State Laboratory, Department of Physics, National Institute of Technology (NIT), Srinagar, Jammu and Kashmir 190006, India,   Solid State Research Laboratory, Department of Physics, University of Kashmir, Srinagar, Jammu and Kashmir 190006, India.,   Solid State Laboratory, Department of Physics, National Institute of Technology (NIT), Srinagar, Jammu and Kashmir 190006, India
Published: July 2024

This study investigates the impact of Gd3+ doping on the structural and optical characteristics of LiBaPO4. In this study, the solid-state reaction route was utilized to synthesized LiBa1-xGdxPO4 compounds with varying compositions (x = 0, 0.04, and 0.08). In this study, the phase of the samples was determined through Rietveld refinement analysis using Foolproof software. This analysis allowed us to obtain refined parameters such as lattice constants, volume of the unit cell, and goodness of fit (ꭕ2). The samples were observed to exhibit crystallization in the trigonal phase, characterized by the space group P31c. In this study, the surface morphology of the sample was analyzed using field emission scanning electron microscopy (FESEM). The obtained FESEM images were further processed using ImageJ software to calculate the grain size. In this study, the optical band gap was determined through the application of the tauc plot method. The results revealed a decreasing trend in the band gap values (ranging from 3.06 eV to 2.14 eV) as the dopant concentration was increased. This study investigates the photoluminescence properties of brilliant red luminescent phosphor spheres and their potential application in red luminescent optical devices. The results indicate that these phosphor spheres exhibit strong red luminescence, indicating their suitability for use in such devices.
Magnetic Nanoparticles in Cancer Thermotherapy: A Mathematical Approach to Optimal Treatment Design
Authors: Zargar F. A. ,   Govt Medical College, Bakshi Nagar, Jammu – 180001, India, Bhat Hilal A. , Zargar Mohd. A. , Malik S. A. ,   Department of Electronics & Instrumentation Technology, University of Kashmir, Srinagar – 190006, India,   Department of Computer Science, University of Saskatchewan, Saskatoon – S7N 5A2, Canada,   Higher Education Department, Government of Jammu & Kashmir – 190001, India
Published: July 2024

Thermotherapy, often called Hyperthermia treatment is a cancer treatment modality that involves raising the temperature of the tumor mass to over 315 K (42°C) for a specific duration, which leads to cell death through apoptosis or necrosis. Magnetic Particle Hyperthermia (MPH) is a non-invasive technique where magnetic nanoparticles are introduced into the tumor and then exposed to a magnetic field which convert magnetic energy into heat. Due to their high acidity, tumor cells are more sensitive to heat than healthy cells, meaning that heating the tumor to 315-319 K (42°C–46°C) can destroy it with minimal damage to the surrounding healthy tissues. During hyperthermia treatment, blood perfusion helps protect the healthy tissues around the tumor by dissipating excess heat. This paper presents a study where the temperature profiles within a spherical hepatic tumor mass are estimated by solving Pennes’ Bio-heat Equation, incorporating a power term. The study uses analytical methods to examine the effects of magnetic fluid hyperthermia treatment. Numerical illustrations are carried out using magnetite (Fe3O4) nanoparticles having an average diameter of 10.9 nm with mineral oil as a carrier liquid, subjected to magnetic fields of varying intensities. By analysing the model, the present work helps in designing an optimal treatment protocol by identify the time threshold of the therapy for varying magnetic field strengths.
Density Functional Theory (DFT) Based Local Density Approximation (LDA) Study on Tailoring Electronic and Optical Properties of SnO and In-Doped SnO
Authors: Rahaman Mohammad Mahafuzur ,   Department of Physics, Jagannath University, Chittaranjan Avenue, Dhaka 1100, Bangladesh, Momin Md. Abdul , Majumdar Abhijit , Rahman Mohammad Jellur ,   Department of Bioengineering, University of Pittsburgh, 4200 Fifth Ave, Pittsburgh, PA 15260, USA,   Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, India,   Department of Physics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh.
Published: July 2024

The ambipolar nature of SnO has significantly increased its potential for using in p-n junction devices, for which it has drawn the attention of the scientific community. In this paper, the structural, electronic, and optical properties of SnO and the impact of Indium (In) doping into SnO are computed by Local Density Approximation (LDA) under the density function theory (DFT) framework. The calculated bond length of SnO in SnO is 2.285 Å, and that deviates  3% from the experimental value. The SnO and InO bond lengths in In-doped SnO are calculated to be 2.3094 and 2.266 Å, respectively. Interestingly, The band gap of pure SnO is calculated to be 2.61 eV, whereas it is significantly dropped down to 2.00 eV in the case of In doped SnO. The Total Density of State (DOS), Partial DOS, and electron density are depicted for SnO and In-doped SnO. As a consequence of In-doping static value of the refractive index and the real part of the dielectric function for SnO decrease from 1.9 to 1.4 and 3.6 to 1.97, respectively. Therefore, In-doping enhances the properties of the SnO film, which may lead the material to be applied in the future to develop electronic and opto-electronic devices.
Synthesis and Characterization of CdS and Sr-Doped CdS Quantum Dots: Impedance Analysis for Nano-Tuned Electronic Applications
Authors: Dar G. N. ,   Department of Physics, University of Kashmir, Srinagar-190006 India., Firdous A. , Irfan S. , Pandith A. H. , Nazir I. , Shah K. A. , Ali N. , Showket S. , Lone M. Q. ,   Department of Physics, Sri Pratap College, Srinagar-190001 India,   Department of Physics, University of Kashmir, Srinagar-190006 India.,   Department of Chemistry, University of Kashmir, Srinagar-190006 India,   Department of Chemistry, University of Kashmir, Srinagar-190006 India,   Department of Physics, Sri Pratap College, Srinagar-190001 India.,   Department of Physics, University of Kashmir, Srinagar-190006 India.,   Department of Physics, University of Kashmir, Srinagar-190006 India.,   Department of Physics, University of Kashmir, Srinagar-190006 India.
Published: July 2024

This study reports the synthesis and comprehensive characterization of cadmium sulfide (CdS) and strontium-doped CdS quantum dots (QDs) using a straightforward chemical precipitation method. N, N-Dimethylformamide served as the stabilizing agent, while specific metal precursors facilitated the formation of the nanostructures. The incorporation of strontium into the CdS matrix aimed to enhance the electronic properties of the quantum dots. Energy Dispersive X-ray Analysis (EDAX) confirmed the successful doping of Sr into the CdS QDs. X-ray Diffraction (XRD) analysis verified the high-crystallinity of the synthesized quantum dots, with the mean crystal sizes determined to be 3.18 nm for pure CdS and 3.99 nm for Sr-doped CdS (2mM and 4mM concentrations). Impedance spectroscopy was utilized to study the frequency-dependent electrical properties of the QDs at room temperature, revealing significant variations in impedance with frequency. The results demonstrated that both pure and Sr-doped CdS QDs exhibit capacitive admittance, which is indicative of their potential application in nano-tuned electronic devices. The ability to fine-tune the resonant frequency by controlling the size and doping level of the quantum dots presents a significant advantage for their use in advanced electronic applications. The study highlights the promising application of CdS and Sr-doped CdS quantum dots in the development of high-performance, frequency-tunable nanoscale electronic devices.
Deciphering the evolution of electronic and magnetic properties in alkali doped nickel oxide: An In-silico approach
Authors: Teli Nazir Ahmad ,   Department of Physics, University of Kashmir, Hazratbal. Srinagar, 190006 Jammu and Kashmir, India., Mir Showkat Hassan ,   Department of Physics, University of Kashmir, Hazratbal. Srinagar, 190006 Jammu and Kashmir, India.
Published: July 2024

In this study, we employed the DFT+U method to systematically explore the electronic, and magnetic properties of nickel oxide doped with alkali metal atoms (Li, Na, K). The Hubbard potential-U was judiciously applied to all doped compound resulting from alkali doping, and were found to exhibited half-metallic properties. A noteworthy observation was the half-metallic band gap in the spin-down channel, which exhibited a linear variation with the increasing value of the Hubbard potential. Furthermore, the total magnetic moment was discernible in the supercells, with all supercells demonstrating 100% spin polarization at the Fermi level. Consequently, the findings from this study hold significant potential for applications in spintronics, thereby paving the way for future research in this domain.
First Principle Study of Tunnel Magnetoresistance of Various Oxide Materials
Authors: Saleem Sharif ,   Department of Electronics and Instrumentation Technology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India., Malik Gul Faroz Ahmad , Farooq Amir , Khanday Farooq Ahmad ,   Department of Electronics and Instrumentation Technology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India.,   Department of Electronics and Instrumentation Technology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India.,   Department of Electronics and Instrumentation Technology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India.
Published: July 2024

In this paper, the first principle study of tunnel magnetoresistance (TMR) for various oxide materials has been done. More than 30 materials have been taken into consideration and divided into four different categories based on their bandgap. The four categories are 2-4 eV bandgap materials, 4-6 eV bandgap materials, 6-8 eV bandgap materials, and 8-10 eV bandgap materials. The first principle simulations and the device-level simulations of various MTJ configurations were executed using the various oxide materials. The results reveal that maximum TMR ratio is observed in oxide materials having lower bandgap value and it reduces with the increase in oxide material bandgap. The maximum TMR ratio is observed in Cu2O material and minimum TMR is observed in BeO material. The oxide materials with bandgap less than 3ev are the best materials for device level fabrication and they provide 100% TMR for the oxide thickness up to 3 nm.
Ceramic/Polymer Nanodielectrics: Towards a Multifunctional or Smart Performance
Authors: Psarras Georgios C. ,   Smart Materials & Nanodielectrics Laboratory, Department of   Materials Science, School of Natural Sciences, University of Patras, Patras 26504, Hellas (Greece).
Published: July 2024

Ceramic nanoparticles/polymer composite nanodielectrics constitute a novel class of engineering materials, which exhibit tunable mechanical, thermal, electrical and magnetic properties, energy storing/recovering ability in tandem with processability and corrosion resistance. By these means the produced nanocomposites are characterized by multifunctionality since structural components are able to perform a wide range of desirable functions. When the embedded nanoparticles are polar oxides and/or piezo/ferro-electrics, or any kind of stimuli responsive materials additional functional performance is induced in the nanocomposites, providing a suitable basis for the development of smart materials.
Eco-Friendly Electrochemical Sensor for Accurate Soil Nitrate Detection using ZnOx/PANI Nanocomposite on Nickel Foam Electrode
Authors: Pawar S. K. ,   Nanostructured Materials Processing Laboratory, Department of Electronics, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon-425001, Maharashtra, India., Wadodkar N. A. , Salunke R. S. , Patil A. M. , Shirale D. J. ,   Nanostructured Materials Processing Laboratory, Department of Electronics, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon-425001, Maharashtra, India.,   Nanostructured Materials Processing Laboratory, Department of Electronics, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon-425001, Maharashtra, India.,   School of Chemical Sciences, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon-425001, Maharashtra, India.,   Nanostructured Materials Processing Laboratory, Department of Electronics, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon-425001, Maharashtra, India.
Published: July 2024

This study presents an innovative approach to enhancing nitrate detection in soil, a critical macronutrient for agriculture. We developed a novel electrochemical sensor using a nanocomposite of Zinc Oxide (ZnOx) and Polyaniline (PANI) on a Nickel foam electrode. The nanocomposite was synthesized through cyclic voltammetry and characterized using Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Spectroscopy (EDS), and X-ray Diffraction (XRD) to analyze its morphological, elemental, and crystalline properties. The sensor's performance was evaluated using square wave voltammetry, revealing a direct linear relationship between the peak current and nitrate concentration. The sensor demonstrated high sensitivity (4.53 µA/µM) and a low detection limit (0.40 µM), confirming its potential for precise and sensitive nitrate analysis in soil samples.
Selective Determination of Acetaminophen in Presence of Ascorbic Acid at Poly (p-Methoxyphenol) Electrode
Authors: Erdoğdu Gamze ,   İnönü University, Faculty of Arts & Sciences, Department of Chemistry, Malatya-44280, Turkey
Published: July 2024

In the present work, we discuss the modification of a gold electrode with p-methoxyphenol and its application as a sensor for acetaminophen (ACP) in a phosphate buffer solution (pH = 7.4). The modified electrode was subsequently employed to determine acetaminophen in the presence of ascorbic acid (AA) using differential pulse voltammetry (DPV). The peak positions and relative sensitivity of ACP/AA were influenced by the potential window used during polymerization. For polymerization between 0 and 1.0 V, the peak potentials recorded in the phosphate buffer solution (pH = 7.4) were 488 mV for ACP and 280 mV vs. Ag/AgCl for AA. Furthermore, the effects of pH and electrolyte type on the linearity range and detection limit were investigated. The high selectivity and sensitivity for ACP were attributed to charge discrimination and analyte accumulation. The detection limit for the 3σ-test was determined to be 0.2 nM. This study highlights the potential of the modified gold electrode for selective and sensitive detection of acetaminophen, even in the presence of interfering substances such as ascorbic acid. The optimization of polymerization conditions and the comprehensive analysis of pH and electrolyte effects contribute to the electrode's superior performance.