bluuebunny/crossref_metadata_2025 huggingface dataset:
Estilo de vida, Sobrepeso y obesidad en estudiantes de ciencias de la salud durante el confinamiento por COVID-19en Barranquilla (Colombia)
Authors: Lamadrid Castro Sebastian , Arana Baquero Walid , Cuello Cerchiaro Eduardo , Suárez Carrillo Elisa , Peñuela Epalza Martha
Published: September 2023

Objetivo: Describir la prevalencia de sobrepeso y obesidad y su asociación con los estilos de vida, en estudiantes de pregrado de ciencias de la salud de Barranquilla, Colombia. Materiales y métodos: Se realizó un estudio descriptivo transversal, mediante encuesta en línea, con preguntas para valorar la composición corporal y percepción subjetiva de cambio de peso en la pandemia y el cuestionario FANTASTICO para estilos de vida. Resultados: Participaron 346 estudiantes de los pregrados de ciencias de la salud, mayores de 18 años. La mayoría fueron del programa de medicina (74%) y de sexo femenino (69,6%). El estilo de vida fue valorado excelente (6,4%), bueno (40.2%), regular (32,7%) y malo (20,8%). Según el IMC, se halló exceso de peso (sobrepeso y obesidad) en 19.65% (15% con sobrepeso y 4.65 con obesidad), 9.25% tenía bajo peso y 71.10% fue normal. El estilo de vida fue regular o malo en 53% de hombres y en igual porcentaje de mujeres. En el análisis bivariado, el exceso de peso mostró asociación estadística significativa con sexo masculino, malos hábitos alimentarios (p=0.01), inactividad física (p= 0.02) y consumo de alcohol (p<0.001). Conclusión. Durante el confinamiento por COVID-19 prevalecen estilos de vida inadecuados en los estudiantes de ciencias de la salud, asociados a una mayor prevalencia de sobrepeso y obesidad. Es imperativo reforzar la promoción de la salud.
Estudio longitudinal de la respuesta de anticuerpos tras la vacunación contra el SARS-CoV-2 con la vacuna BNT162b2 de Pfizer-BioNtech
Authors: Robles Navas Leandra J. , Ortega Huete Juan J. , Juliá Sanchis María L. , Bravo Miró Jorge S. , Sánchez Serezade Cervera , Gasset Ricardo Molina
Published: September 2023

Objetivos

Se realizó un estudio para evaluar la inmunidad de trabajadores sanitarios y no sanitarios del área de salud de Alcoy (España), tras haber recibido tres dosis de la vacuna de Pfizer-BioNTech y analizar su relación con factores individuales.

Métodos

Se llevó a cabo un estudio prospectivo, observacional, longitudinal, analítico, destinado a observar la inmunogenicidad en profesionales sanitarios y no sanitarios del Hospital Virgen de los Lirios, posterior a la administración de tres dosis de la vacuna de Pfizer-BioNTech. Se determinó la concentración de anticuerpos IgG frente a la proteína spike del SARS-CoV-2. La presencia de COVID-19 se identificó mediante detección cualitativa de anticuerpos IgG contra la proteína de la nucleocápside. Las muestras de los voluntarios se analizaron a los 15 días, 3 meses, y 6 meses de recibir la segunda dosis de la vacuna, y a los 12 meses de la tercera dosis (dosis de refuerzo). Se extrajeron datos demográficos, así como sobre factores de riesgo y el uso de fármacos inmunosupresores. Los análisis estadísticos se realizaron con el programa SPSS. Los niveles medios de anticuerpos a lo largo del tiempo se compararon mediante ANOVA.

Resultados

La participación fue del 99,5 % (199/200). Las concentraciones de IgG fueron superiores en los hombres y en los sujetos obesos. No se observaron variaciones significativas con respecto a factores como el hábito tabáquico.

Conclusiones

Todos los participantes desarrollaron inmunidad humoral, excepto tres sujetos, que estaban recibiendo un tratamiento inmunosupresor. Los participantes con infección previa de COVID-19 presentaron mayores niveles de anticuerpos.
Investigating in-class and after-class boredom among advanced learners of English: intensity, interrelationships and learner profiles
Authors: Pawlak Mirosław , Kruk Mariusz , Csizér Kata , Zawodniak Joanna
Published: September 2023

Although the number of studies into boredom in second and/or foreign language (L2) learning is evidently on the rise and our understanding of this negative emotion has been considerably extended, surprisingly, empirical evidence is still scant with respect to boredom experienced in out-of-school situations. This study addresses this gap by: (1) examining the relative contribution of factors underlying in-class and after-class boredom, (2) investigating relationships among these factors, (3) identifying distinct learner profiles connected with these factors, and (4) exploring the role of group-related variables in this respect. The data were collected from 107 Polish university students majoring in English through two tools designed for this purpose. The results demonstrated that in-class and after-class boredom are distinct yet multidimensional constructs and factors underpinning them cannot be easily separated. Four in-class and after-class boredom-specific cluster groups were identified and the impact of gender and attainment measures for some of these factors was found. Future research directions are discussed as well.
A methodological approach for detecting multiple faults in wind turbine blades based on vibration signals and machine learning
Authors: Ogaili Ahmed Ali Farhan , Jaber Alaa Abdulhady , Hamzah Mohsin Noori
Published: September 2023

Wind turbines generate clean and renewable energy for the international market. The most ‎‎important aspect of wind turbine maintenance is reducing failures, downtime, and operating and maintenance expenses. ‎This study aims to detect multiple faults exhibited by wind turbine blades; failures such as cracks (tip crack, mid-span crack, and crack ‎near the root) were observed in the blades at different locations. The research suggests a new approach, incorporating vibration signals and machine learning techniques to identify various failures in wind turbine blades. The technology of ranking features such as ReliefF algorithms, chi-squares, and information gains was adopted to discuss a method framework to diagnose several problems in wind turbine blades, such as cracks in different locations. The k-nearest neighbors (KNNs), support vector machines, and random forests are used to classify data based on measured vibration signals. The eight main time-domain features are calculated from the vibration signals. The proposed methodology was validated using four databases. The results showed good classification accuracy in four databases, with at least three non-conventional features in each database’s top nine features of the three classification techniques. The results also showed that when the ReliefF selection algorithm is applied with the KNN classification algorithm, it generates the highest classification accuracy under all failure conditions, and the value is 97%. Finally, the performance of the proposed classification model is compared with other machine learning classification models, and a promising result is obtained. ‎
Smart robots’ virus defense using data mining technology
Authors: Ye Jiao , Patel Hemant N. , Meena Sankaranamasivayam , Maaliw Renato R. , Ajibade Samuel-Soma M. , Keshta Ismail
Published: September 2023

In order to realize online detection and control of network viruses in robots, the authors propose a data mining-based anti-virus solution for smart robots. First, using internet of things (IoT) intrusion prevention system design method based on network intrusion signal detection and feedforward modulation filtering design, the overall design description and function analysis are carried out, and then the intrusion signal detection algorithm is designed, and finally, the hardware design and software development for a breach protection solution for the IoT are completed, and the integrated design of the system is realized. The findings demonstrated that based on the mean value of 10,000 tests, the IoT’s average packet loss rate is 0. Conclusion: This system has high accuracy, good performance, and strong compatibility and friendliness.
Existence of solutions for semilinear retarded equations with non-instantaneous impulses, non-local conditions, and infinite delay
Authors: Leiva Hugo , Garcia Katherine , Lucena Euro
Published: September 2023

In this work, we investigate the existence and uniqueness of solutions for retarded equations with non-instantaneous impulses, non-local conditions, and infinite delay. To achieve this goal, we select an appropriate phase space that satisfies the axiomatic theory developed by Hale and Kato for studying differential equations with infinite delay. Then, we reformulate the problem of existence of solutions as the problem of finding fixed points of an operator. To this end, we apply the Karakostas fixed point theorem, which is an extension of the well-known Krasnoselskii fixed point theorem. Under certain conditions, we establish the uniqueness of solutions for our problem. Finally, we analyze the prolongation of solutions and demonstrate that, given certain conditions, these solutions are globally defined. Our research has important implications for the study of delayed dynamical systems, including models of population dynamics, physiological processes, and engineering systems.
Mid-infrared integrated electro-optic modulators: a review
Authors: Xu Tianqi , Dong Yuan , Zhong Qize , Zheng Shaonan , Qiu Yang , Zhao Xingyan , Jia Lianxi , Lee ChengKuo , Hu Ting
Published: September 2023

Integrated mid-infrared (MIR) photonics have various applications in optical fiber communication, spectral detection and identification, free-space communication, and light detection and ranging, etc. The MIR electro-optic (EO) modulator, which is one of the key components of MIR integrated photonic systems, has attracted a lot of research interests. In this paper, we review the reported integrated MIR EO modulators based on different modulation mechanisms and material platforms. The recent research progresses and challenges of MIR EO modulators are presented and discussed. The unique advantages and the corresponding applications of each type of MIR modulators are summarized as well. In the end, we provide our perspectives of a few areas in integrated MIR modulators that are worthy for research attention in future.
Inverse design of all-dielectric metasurfaces with accidental bound states in the continuum
Authors: Gladyshev Sergei , Karamanos Theodosios D. , Kuhn Lina , Beutel Dominik , Weiss Thomas , Rockstuhl Carsten , Bogdanov Andrey
Published: September 2023

Metasurfaces with bound states in the continuum (BICs) have proven to be a powerful platform for drastically enhancing light–matter interactions, improving biosensing, and precisely manipulating near- and far-fields. However, engineering metasurfaces to provide an on-demand spectral and angular position for a BIC remains a prime challenge. A conventional solution involves a fine adjustment of geometrical parameters, requiring multiple time-consuming calculations. In this work, to circumvent such tedious processes, we develop a physics-inspired, inverse design method on all-dielectric metasurfaces for an on-demand spectral and angular position of a BIC. Our suggested method predicts the core–shell particles that constitute the unit cell of the metasurface, while considering practical limitations on geometry and available materials. Our method is based on a smart combination of a semi-analytical solution, for predicting the required dipolar Mie coefficients of the meta-atom, and a machine learning algorithm, for finding a practical design of the meta-atom that provides these Mie coefficients. Although our approach is exemplified in designing a metasurface sustaining a BIC, it can, also, be applied to many more objective functions. With that, we pave the way toward a general framework for the inverse design of metasurfaces in specific and nanophotonic structures in general.
A functional approach to the formal mismatches of indexation markers
Authors: Zingler Tim
Published: September 2023

This paper argues that indexation markers (i.e., argument-indexing agreement markers and/or pronouns) show a wider range of formal mismatches across languages than the exponents of other inflectional categories. These mismatches are defined in terms of mixed behavior with respect to different criteria of wordhood. The mismatches that the indexation markers (or “indexes”) show include extrametricality with respect to reduplication and “mobility” in that they can occur in different slots of otherwise identical word forms. Other indexes can freely occur on either member of a phrase-level construction or behave like full-fledged affixes in one context but like full-fledged words in another. The claim that the range of these traits is extraordinary is based on a larger project, (Zingler, Tim. 2020.Wordhood issues: Typology and grammaticalization. Albuquerque: University of New Mexico PhD dissertation), which in addition to indexes investigates mismatches among case, definiteness, and tense markers. The explanations offered for this behavior primarily rely on the manner in which reference is established in discourse and on the different diachronic pathways for which these usage patterns pave the way. Another major conclusion is that the indexes described here constitute a formally heterogeneous set that cannot be easily subsumed under the label of “clitics.”
DOS NOVOS PROJETOS URBANOS AOS ABANDONOS DO CENTRO DE PRESIDENTE PRUDENTE/SP
Authors: Pozza Scudeller Bárbara
Published: September 2023

O centro das cidades passa por transformações constantes de tempos em tempos. Quase que em um processo cíclico ao longo da história das cidades, o centro recebe novos projetos. Seja sob a justificativa de retomar o seu valor simbólico, seja para atualizar a sua infraestrutura, seja para atrair novos investimentos econômicos, há um consenso entre agentes públicos e privados quanto a ideia de intervir no centro. Esse artigo apresenta o caso da cidade de Presidente Prudente/SP, que recebeu novos projetos para o seu centro nos anos 2010. A discussão gira em entorno da ambiência espacial criada por esses novos projetos, comparativamente a ambiência de projetos anteriores. No que são representativas de um processo de abandono ou deterioração do centro? Conclui-se que a ideia de abandono desses espaços é apenas parcial e sua deterioração apenas relativa. Ao invés do abandono dos espaços, houve um abandono do antigo modelo de sociedade local, implicando na necessidade e na conveniência de se pensar novos projetos para o centro.
POPULAÇÃO EM SITUAÇÃO DE RUA
Authors: Lima Oliveira Giuliana , Santana Luz Vera
Published: September 2023

A população em situação de rua, grau extremo de vulnerabilidade, conta com o espaço público para manutenção da própria vida. Sua arquitetura é a confecção de aparatos com sobras, em perpétua urgência. Busca-se, neste artigo, relacionar conceitos de sustentabilidade e formas de sobrevivência desta população, situando o tema em Campinas, cidade paradoxalmente com vocação global. O texto aborda a condição de abandono e desamparo dessa forma de vida no meio urbano, refletindo sobre uma desigualdade social sem precedentes, à mercê das próprias estratégias de sobrevivência, correspondendo a contradições entre escassez e opulência. Mediante análise crítica de referências documentais, bases de dados e observação de campo oriundas, como produto, de uma pesquisa de maior amplitude, objetiva-se neste artigo relacionar algumas categorias predicadas como pacto globais, revelando paradoxos perante realidades impostas pela hegemonia do capital. Aponta-se para a atividade de coleta de resíduos sólidos urbanos como uma possibilidade conquistada por esta população.
ACESSIBILIDADE POR MODO ATIVO E A INSERÇÃO URBANA DA HABITAÇÃO SOCIAL
Authors: Cirqueira Rodrigues Lopes Flávia , Cristine Kneib Erika
Published: September 2023

A partir do abandono histórico das camadas populares no Brasil - materializado pela segregação socioespacial - e da grande relevância da mobilidade urbana, com vistas a viabilizar a acessibilidade por modos sustentáveis, este trabalho aborda a relação entre a estrutura espacial urbana e os deslocamentos ativos. Como metodologia, foi desenvolvido um procedimento, a partir da visão sistêmica, para investigar a inserção urbana da habitação social em relação à acessibilidade por modo ativo às centralidades urbanas. O procedimento foi validado com aplicação em Goiânia, Goiás, onde se constatou a segregação socioespacial. Este trabalho apresenta uma contribuição teórico metodológica para análise da acessibilidade por modo ativo, a partir da Teoria Geral dos Sistemas, e reforça a necessidade de integração do planejamento e gestão, entendo a cidade como um todo, com relações dinâmicas, complexas e interdependentes, para vencer o descaso e o abandono que caracterizam a inserção da habitação social.
OBSERVATÓRIO METEOROLÓGICO DE CAETITÉ
Authors: Santana Ramos João Maurício , Guerra Santos Mota Luciana
Published: September 2023

O Observatório Meteorológico de Caetité é um edifício do início do século XX que tem valor simbólico para moradores da cidade e que se encontra abandonado, em processos de degradação. Neste trabalho, foram empregados recursos de inspiração etnográfica para construir relatos e análises em torno da preservação do Observatório. Nota-se que habitantes desejam que o edifício seja restaurado e conservado e que há mobilização de atores para pensar possibilidades de uso do prédio que atendam a demandas locais. As articulações em torno à preservação patrimonial levaram ao tombamento municipal do prédio, mas sem planejamento de ações posteriores que garantam a recuperação e preservação do patrimônio histórico.
ENTRE A NATUREZA E O ABANDONO
Authors: Jobim Andrews
Published: September 2023

O presente texto é, além de uma resenha do artigo Observações sobre a natureza (physis) em Heidegger de Gabriel de Almeida Barros, uma breve reflexão sobre o estatuto ontológico dos entes em abandono, indicando do que se tratam e de modos de abordá-los para retirar dessa condição.
PERSISTÊNCIAS NA PRODUÇÃO DO ESPAÇO POR APAGAMENTOS
Authors: Guatelli Igor
Published: September 2023

Restar é a possibilidade de ser outro não sendo nem o que era em relação ao que foi apagado, nem o que será em relação ao que se apresenta como novo. Imagem espectral do passado e do futuro, os restos, as restâncias são o indesejável de uma paisagem e lógicas urbanas que os assombram em suas existências mas também são assombradas por eles por persistirem como seu negativo, talvez negação.
RÉQUIEM PARA UMA ARQUITETURA
Authors: Vieceli Ana Paula
Published: September 2023

Este ensaio, composto em três momentos, trata de uma composição fúnebre para um objeto arquitetônico que deixou de existir na paisagem da cidade. Em sua memória e, como tentativa de processar a sua perda, mais do que um registro da existência do objeto arquitetônico, o ensaio busca contar a história de amor e imaginação envolvida em um exercício de projeto de reativação de um lugar do abandono no centro de São Leopoldo-RS. Pela ocasião da demolição do objeto, busca refletir sobre a sensibilidade na relação com objetos construtivos e os espaços da cidade, considerando o tempo do luto que prepara o sonhador de espaços para outras imaginações.
O DISCURSO DO ABANDONO
Authors: Denardi Piccini Ana Maria , Martinez Arruda Campos Vitor
Published: September 2023

Sob a ótica da sustentabilidade urbana, esta pesquisa tem como objetivo debater o abandono em torno da habitação popular em condições de precariedade. No discurso, será tratado o distanciamento promovido pelas leis vigentes (que tendem ao incentivo do uso de novas tecnologias na construção de habitações que cumpram sua função social de propriedade) em contradição à prática das políticas públicas (que promovem o abandono das mesmas). A pesquisa qualitativa foi feita por meio da revisão bibliográfica e análise documental. Observou-se com esse estudo, que muitos são os entraves políticos, econômicos e até mesmo culturais para a inserção dessas novas tecnologias para a construção de casas populares. Registra-se que no decorrer dos anos de diferentes programas governamentais, a informalidade passou a sustentar a formalidade, enquanto uma parcela significativa da população carente continua inacessível aos programas e consequentemente a moradia digna, resultando, dessa forma, na precariedade habitacional estampada na realidade brasileira.
Pesca semi-industrial da tainha? Isso existe?
Authors: Paula Rainho Ana
Published: September 2023

A historia da pescaria da tainha nas comunidades de pescadores artesanais do sul do país é antiga e está imbricada na própria historia de origem de diversas comunidades pesqueiras. O arrastão de praia é uma prática antiga, tradicional, conhecida por agentes do Estado e diversos pesquisadores que a relataram e detalharam arduamente. Porém, o que acontece quando os agentes do Estado se deparam com uma pescaria de tainha completamente desconhecida e que aparentemente possui caracteristicas diferenciadas do arrasto de praia, através da utilização de embarcações maiores e apetrechos como anilha? Rapidamente o agentes Estatais buscam tachá-los, caracterizá-los, escondendo seus traços historicos e culturais através de conceitos como semi-industrial. A partir disso, esse artigo busca compreender a pescaria de emalhe anilhado na comunidade Farol de Santa Marta e a discussão em torno da sua tradicionalidade.
Structural, electronic, elastic, and optical properties of chalcogenide perovskite SrZrS3 under ambient and high-pressure conditions
Authors:   Shaanxi College of Communications Technology, Shaanxi, 710018, China, Han M. L. , Hu Y. ,   Shaanxi College of Communications Technology, Shaanxi, 710018, China
Published: September 2023

Hydrostatic pressure is an effective tool that can give rise to novel crystal structures and physical properties. In this paper, we perform the first-principles calculation based on density-functional theory (DFT) to study the structural, electronic, elastic, and optical properties of chalcogenide perovskite SrZrS3 under pressure. The results indicated that both the lattice constant and cell volume decrease with the increase of pressure, which are matched well with available previous values. The obtained elastic constants reveal the SrZrS3 is mechanically stable between 0 and 15 GPa. Additionally, the main features of the valence and conduction bands have been analyzed from the total and partial density of states. The complex dielectric function, refractive index, absorption coefficient, reflectivity, and the extinction coefficient are also calculated and analyzed. According to our work, we found that the optical properties of SrZrS3 undergo a red shift with increasing pressure.
The effects of thickness and doping concentration on the solar efficiency of GaN/p-Si based solar cells
Authors:   School of Physics and Material Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, Khairuddin N. S. , Mohd Yusoff M. Z. ,   School of Physics and Material Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, Hussin H. ,   School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
Published: September 2023

In this study, we used the PC1D simulator to demonstrate the performance analysis of a solar cell model based on gallium nitride (GaN). It has been discovered that when the layer thickness of the GaN substrate grows, the efficiency of solar cells decreases. This was found by comparing the doping concentration and layer thickness on the GaN and silicon substrates. As the thickness of the p-doping Si layer rises, cell efficiency increases just modestly. The optimal doping concentrations for GaN and p-silicon are 1x1018 cm-3 and 1x1017 cm-3 , respectively. In compared to other designs, GaN/p-silicon solar cells have the highest efficiency of 25.26%.
Investigations into the structural, morphology and optoelectronics properties of the CdO:Cu films produced by spray pyrolysis
Authors:   Department of Physics: Faculty of Science, King Abdulaziz University, 80203, Jeddah, 21589, Saudi Arabia, Ahmed M. , Alshahrie A. ,   Department of Physics: Faculty of Science, King Abdulaziz University, 80203, Jeddah, 21589, Saudi Arabia, Shaaban E. R. ,   Physics Department: Faculty of Science, Al-Azhar University, P.O. 71452, Assiut, Egypt
Published: September 2023

This study used spray pyrolysis to create CdO films that were undoped and doped with Cu at varied concentrations (0, 1, 2, 3, 4 and 5%). The materials' polycrystalline cubic nature is confirmed by XRD examination. Rietveld refinement was used to get the lattice constant. In terms of energy dispersive more about the chemical makeup of materials. The structure, morphological, optical, and electrical properties of the film were investigated using the (XRD), (SEM), UV- spectrophotometer, and Hall arrangement. The band optical gaps, opt E g , of the CdO:Cu films were observed to decrease as the quantity of Cu doping increased. Also, effective Cu doping enhances the electrical characteristics of CdO, as shown by the film's 3 % resistivity. The carrier concentration is approximately 5x1020 of that 2.25x1020 of the undoped film, whereas the amount of Cu doping is approximately ten of that of the CdO film. To increase both optical and electrical properties in a variety of optoelectronic device applications, Cu-CdO films can be used as Transparent Conducting Oxide (TCO) materials.
Characterization of silver oxide thin films with thickness variation prepared by thermal evaporation method
Authors:   Department of Physics, College of Science, Mustansiriyah University, Iraq, Jasim F. A. , Mosa Z. S. A. ,   Department of Pharmacy, Al-Manara College for Medical Science, Iraq., Habubi N. F. ,   Department of Radiation and Sonar Technologies, AlnukhbaUniversity College, Iraq, Kadhim Y. H. ,   Department of Optics Techniques, Al-Mustaqbal University College, Babylon, Iraq, Chiad S. S. ,   Department of Physics, College of Education, Mustansiriyah University, Iraq.
Published: September 2023

Thermal evaporation technique has been used to produce silver oxide (AgO). The findings demonstrate that the crystal quality of the AgO film was dominated by the thin and sharp peaks at (111) plans. Atomic Force Microscopy (AFM) confirm that the distribution grains size appears nanostructure and homogeneous in all films. RMS decreased from 6.84 nm to 2.17 nm with thicknesses 200 nm. The surface roughness decreased from 7.82 nm to 3.22 nm. The distribution of grains size appears nanostructured and homogeneous in all films, and a slight decrease in average particle size. The surface displayed that the roughness decreased with the increase in thicknesses. The spectrum fluctuation of their optical constants has been calculated using transmittance and absorption data. In the visible region of the wavelength, all films have a high absorption coefficient with a value of 104 (cm-1 ). According to the optical measurements, the films have a band gap between 1.73 and 1.61 eV. The Extinction coefficient and refractive index drop as film thickness rises.
Variation in the crystallinity of cobalt oxide nanoparticles with increasing annealing temperature and pH
Authors:   Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan, Haq S. , Rehman W. ,   Department of Chemistry, Hazara University, Mansehra, Pakistan, Waseem M. ,   Department of Chemistry, COMSTAS University Islamabad, Islamabad, Pakistan, Elmnasri Kh. ,   Laboratory of bacteriological research, Institute of veterinary research of Tunisia, university of Tunis El Manar, Tunis 1006 ،Tunisia, Hedfi A. ,   Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia, Ben Ali M. ,   Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia, Mahmoudi E. ,   Laboratory of Biomonitoring of the Environment LR01 ES14, University of Carthage, Faculty of Sciences of Bizerte, Zarzouna 7021, Tunisia, Ur Rehman M. ,   Department of Chemistry, Hazara University, Mansehra, Pakistan, Khan B. ,   Department of Chemistry, University of Science and Technology, Abbottabad, Pakistan
Published: September 2023

This study is focused on the effects of annealing temperature and pH on the crystallinity of cobalt oxide (Co3O4) nanoparticles (NPs) synthesized via sol-gel method. X-ray diffraction (XRD) analysis was carried out to investigate the crystalline structure and size of the NPs. The results indicated that increasing the pH from 10 to 14 during NPs synthesis led to an increase in crystallinity, as evidenced by the appearance of Bragg reflections upon calcination. On the other hand, increasing the calcination temperature from 120°C to 800°C also increased the crystallinity of Co3O4 NPs, as seen by the appearance of additional Bragg reflections and an increase in crystallite size. These findings demonstrate the significance of pH and calcination temperature in controlling the crystallinity and properties of Co3O4 NPs.
Photocatalytic activity of ZnO nanomaterials with different morphologies
Authors:   Tbilisi State University, Andronikashvili Institute of Physics, 6 Mikheil Tamarashvili St., Tbilisi 0177, Georgia, Gelashvili G. , Gelenidze D. ,   Tbilisi State University, Andronikashvili Institute of Physics, 6 Mikheil Tamarashvili St., Tbilisi 0177, Georgia, Jishiashvili D. ,   Tbilisi State University, Andronikashvili Institute of Physics, 6 Mikheil Tamarashvili St., Tbilisi 0177, Georgia, Shiolashvili Z. ,   Georgian Technical University, Chavchanidze Institute of Cybernetics, 5 Z. Anjaparidze St., Tbilisi 0186, Georgia, Makhatadze N. ,   Georgian Technical University, Chavchanidze Institute of Cybernetics, 5 Z. Anjaparidze St., Tbilisi 0186, Georgia, Jishiashvili A. ,   Georgian Technical University, Chavchanidze Institute of Cybernetics, 5 Z. Anjaparidze St., Tbilisi 0186, Georgia, Gobronidze V. ,   Georgian Technical University, Chavchanidze Institute of Cybernetics, 5 Z. Anjaparidze St., Tbilisi 0186, Georgia
Published: September 2023

The influence of ZnO nanomaterial morphologies on their photocatalytic activity was studied. The ZnO nanobelts and the network of hexagonal disks were grown by pyrolysis in ammonium chloride. ZnO tetrapods were produced by plasma-assisted technology. The nanobelts and tetrapod arms were growing along the c-axis. The sidewalls of nanobelts comprise (21�1�0) and (011�0) plane, while the needle-shape arms of tetrapods are known to consist of altering {011�0} and semi-polar {101�1} facets. The hexagonal ZnO disks have exposed mainly (+0001) facets with the highest surface energy. They showed the highest photocatalytic activity for the degradation of methylene blue, dissolved in water to a concentration of 100 mg/L.
Characterization of zinc oxide nano particles synthesized via chemical and green method
Authors:   Department of Physics, Sadakathullah Appa College, Tirunelveli-627011, India, Begum S. N. , Kumuthini R. ,   Department of Physics, Sadakathullah Appa College, Tirunelveli-627011, India
Published: September 2023

In recent years, the development of efficient green chemistry methods for synthesis of metal oxide nanoparticles has become a major focus of researchers. They have investigated in order to find an eco friendly technique for production of metal oxide nanoparticles. In this work our aim to synthesize of zinc oxide nano particles via chemical and green method. The zinc oxide nano particles were synthesized by mixing zinc sulphate (ZnSO4) solanum procumbens extract and KOH. The synthesized zinc oxide nanoparticles were characterized by XRD, FT-IR and UV-vis spectroscopy and Photoluminescence studies. Further, the synthesized zinc oxide nano particles were tested for antibacterial activity by stand art disc diffusion method.
Visible light photo catalytic and optical property evolution of combustion method prepared copper doped nickel ferrite nanoparticles
Authors:   Department of chemistry, College of Science, King Saud University, P.O. Box.2455, Riyadh 11451, Saudi Arabia, Jothiramalingam R. , Al-Lohedan H. ,   Department of chemistry, College of Science, King Saud University, P.O. Box.2455, Riyadh 11451, Saudi Arabia, Karami A. ,   Department of chemistry, College of Science, King Saud University, P.O. Box.2455, Riyadh 11451, Saudi Arabia
Published: September 2023

By using a simple microwave combustion technique, copper-doped NiFe2O4 spinel nanoparticles were formed. The XRD patterns demonstrated that Cu doping into NiFe2O4 spinel resulted in the creation of α-Fe2O3 secondary phase in addition to the cubic structure that already existed. Using SEM, morphological investigations revealed irregular shapes and severely agglomerated different grain boundaries. In an optical analysis, it was discovered that the band gap narrowed as the Cu2+ doping percentage raised. The octahedral site (Ni-O) and tetrahedral site (Fe-O) stretching modes of the Cu-doped nanoparticle structure were linked to bands at 548, 514, and 649cm-1 from FT-IR analysis. Cu-doped nanoparticles were examined for their enhanced photocatalytic degradation of RhB in visible light irradiation under atmosphere condition. The performance of pure NiFe2O4 as a photocatalyst was discovered to be greatly impacted by the Cu-doping. Additionally, the photo-catalytic effect was optimized (efficiency rose from 88.26 percent, x = 0-99.85 percent, x = 0.4) with the rise of Cu-doping into x=0.4. An in-depth discussion was had on the potential photocatalytic mechanism. The simultaneous improvement of photocatalytic activities serves as proof that Cu-doped NiFe2O4 spinel nanoparticles will perform well in multifunctional photochromic devices in future.
Zmiany w konstantynopolitańskiej interpretacji prawa do nadawania autokefalii
Authors:   Uniwersytet w Białymstoku, Katedra Teologii Prawosławnej, Ławreszuk Marek
Published: September 2023

This article focuses on presenting the contemporary position of the Patriarchate of Constantinople regarding the issue of autocephaly. The analysis takes into account the documents and statements of the Constantinopolitan superiors of the 20th century and verifies them with the regulations of canon law and the Orthodox ecclesiastical tradition. As a result of the conducted research, conclusions were drawn up that shift the essence of the problem from technical issues regarding the announcement of a formal act of independence towards defining clear rules regarding mutual relations, obligations and rights of autocephalous Churches.
„Anielskie moce, spieszcie” – stichery św. Romana Melodosa na przedświęcie Narodzenia Chrystusa
Authors:   Prawosławne Seminarium Duchowne w Warszawie, Karczewski Pantelejmon
Published: September 2023

The feast of the Nativity of Christ is in many ways similar to the feast of feasts – the Resurrection of Christ. One of the similarities is the extensive pre-Christmas period, the last days of which (December 20-24) resemble Holy Week. At matins, sticherions by St. Roman Melodos, with sublime content and its own solemn melody, are sung. The name of the whole cycle comes from the opening verse of the first song: „Angelic powers, now proceed”. The hymns introduce the faithful to the celebration of the Nativity of Christ and encourage them to consider the mystery in the light of dogmatic theology and spiritual life. This article is an analysis of the first twelve sticherions (from the first two days of the pre-Christmas period – December 20 and 21). The author proposed a Polish translation of each sticherion, and also commented on the texts.
Nauczyciele Akademii Ostrogskiej
Authors:   Uniwersytet w Białymstoku, Katedra Teologii Prawosławnej, Mironowicz Antoni
Published: September 2023

The teachers at the Ostroh Academy were highly qualified people, figures involved in the life of the Orthodox Church in the Great Duchy of Lithuania and Poland. All of them were known not only in Ostroh. Their knowledge and activity in the public forum were used by the Ruthenian nobility at assemblies, by the magnates in educating their children, and by the Orthodox hierarchy in defense of the rights of their Church. The diverse composition of lecturers in terms of nationality and religion in Ostroh contributed to raising the prestige of the university. The students could not only acquire solid theological knowledge, but also learn about the situation of the Orthodox Church in other countries, especially in the Ottoman Empire. The shortcoming of the teaching staff was its instability.
Индивидуальная эсхатология в исихазме и современном «новом гуманизме»
Authors:   Akademia Ekonomiczno – Humanistyczna w Warszawie, Słomski Wojciech
Published: September 2023

The paper is dedicated to the confrontation of individual eschatology according to the Late Byzantine hesychasm with the contemporary futurological views of transhumanism, posthumanism and other related theories, doctrines, hypothesis and conceptions, which are here mentioned under the common name of “new humanisms”. The peculiarity of hesychastic theology is in its belief in a human being’s capability to perceive uncreated divine light (the Tabor Light) and divine energies in his earthly life through tacit prayer and other “smartactivities”. Such perception means the start of a Christian’s transfiguration process for future eternal life. Hesyhasm is thoroughly humanistic and could be an alternative for contemporary futurology, taking into account the acute crisis of modern secular and post-Christian humanism and humanistic values.
К проблеме эволюции русской литературно-критической мысли о творчестве Ф.М. Достоевского
Authors:   Uniwersytet w Białymstoku, Moćko Igor
Published: September 2023

The article presents the evolution of the attitude of Russian literary critics and philosophers to the work of F.M. Dostoevsky. Starting with the writer's contemporaries, such as Vissarion Belinsky, their polar assessments are observed: admiration for Dostoevsky's debut, then severe criticism of his later works. His polemics toward Westernizers and liberals aggravated the misunderstanding of the writer's work. A new look at his legacy is evident in the works of Silver Age philosophers, including Nikolai Berdyaev and Semyon Frank. They drew attention to the profound religious sense of Dostoevsky's novels. In the last years of the existence of the Russian Empire and the first post-revolutionary decade, a community of Dostoevsky scholars emerged. Its representatives continued their activities under the new government, but it was a choice between independent opinion (which meant repression, as in the case of Mikhail Bakhtin and Sergei Fudel) and submission to the regime (Leonid Grossman’s, Arkady Dolinin’s works). Besides the critics of that time were forced to consider the writer’s masterpieces through the prism of Lenin's works (for example, Vladimir Ermilov). Since the turn of the 80s and 90s of the 20th century, scientists in search of a new interpretative approach have been returning to the ideas of philosophers of the Silver Age and increasingly paying attention to the religious principle in the works of the Russian classic. This trend continues in the 21st century.
Polityka państwa wobec Kościoła prawosławnego w Polsce w latach 1918-1921
Authors:   Chrześcijańska Akademia Teologiczna w Warszawie, Wydział Teologiczny, Borkowski Andrzej
Published: September 2023

The Polish government aimed at finalizing the matter of autocephaly as soon as possible. Initially, he laid the foundations for a diplomatic mission in Moscow, which eventually led to negotiations with the Moscow Patriarchate. The Ministry of Religious Affairs and Public Enlightenment sought to initially regulate the matter of the Orthodox Church within its competence, namely in the area of the Congress Kingdom, conducting talks with representatives of the Civil Administration of Eastern Territories in Vilnius and the Civil Administration of Volhynia and Podolia. Preliminary talks between the government and church hierarchs on autocephaly in the period from independence to the end of the Polish-Soviet war with the Treaty of Riga of March 18, 1921 were an important step in regulating the canonical and legal position of the Orthodox Church in Poland.
Ikony Bogarodzicy otoczone kultem w prawosławnych parafiach Białegostoku
Authors:   Wydział Architektury, Politechnika Białostocka, Musiuk Tomasz
Published: September 2023

One of the essential elements of Orthodox sacred architecture is elements of the temple's equipment. Some, related to interior design, are utilitarian, while others have a sacral feature, constituting objects of worship. Icons play a significant role in the equipment of Orthodox churches. Their location in the church is associated with elaborate schemes and rules. Those in the iconostasis separate the nave from the presbyterium. Each of them, depicting biblical scenes or figures of God and saints, has its specific place. There also are icons in the central nave, on frescoes, and on polychromes. This article focuses on showing icons outside the iconostasis. They designate new places of worship in the central nave of the Orthodox churches. These are locally revered icons associated with a specific temple or town. Among them, the most common are images of the Virgin Mary. On the example of the extensive parish network of the Polish Autocephalous Orthodox Church in Bialystok in Podlaskie Voivodeship, the author attempts to show the diversity of iconographic images as well as will try to find elements connecting various types of icons of the Virgin Mary present in Orthodox churches in Bialystok. The author decided to concentrate on those iconographic representations that apart from architectural and artistic value carry a sacral charge, i.g. subjects of a unique cult in local communities. The aim of this article is to present the icons of the Mother of God from Orthodox churches in Bialystok which are locally venerated and to try to systematize the elements of this cult manifested in services, individual worship and inspirations and references.
Nomokanones as a Forgotten Source for Liturgics: A Case Study of the Nomokanon Manuscript GR 14 (17th c.) of the Grabovac Serbian Orthodox Monastery (Hungary)
Authors:   University of Belgrade, Faculty of Orthodox Theology, Ubiparipović Srboljub
Published: September 2023

In this paper we present and analyze some selected liturgical rubrics from the Mount Athos and two titles of the two last chapters of the very important manuscript Nomokanon GR 14 (17th c.) of the Serbian Orthodox Monastery Grabovac (Hungary). These rubrics and also titles of the two last chapters, which we have found in already-mentioned manuscript, were being formed by translation from Greek into Church Slavonic language of the Serbian redaction. Selected liturgical rubrics were being translated from the relevant parts of Athonite Typicon and Canon Law Tradition, and two titles of the two last chapters of Nomocanon GR 14 from a work of Gabriel Seviros, Metropolitan of Philadelphia (c. 1540–1616). We have also explained the main theological motives for such a translation and redaction of these texts.
Św. Katarzyna Aleksandryjska - o przyjęciu chrześcijaństwa i nawróceniu pogan
Authors:   Uniwersytet w Białymstoku, Kolada Katarzyna
Published: September 2023

The article is dedicated to St. Catherine of Alexandria, whose cult is still alive. The persecution of Christians in the Roman Empire by Emperor Maxentius left a mark in the form of conversion of many pagans, philosophers, and the empress to the faith in the One God. Analysis of the life of St. Catherine is based on sources.
Public Effort and Participation in the Enforcement of Corruption Eradication in Indonesia
Authors: Manurung Mangaraja , Hutabarat Dany Try Hutama
Published: September 2023

Corruption remains a pressing issue with far-reaching adverse effects on numerous aspects of human existence globally. Combating corruption is a crucial priority in Indonesia that requires concerted efforts. This study employs a normative legal research methodology to construct and conceptualize laws based on applicable doctrines and legal concepts. In addition, it employs a case study approach to investigate specific instances of corruption in depth. This study aims to provide an overview of the regulations regarding the eradication of corruption and to demonstrate how community involvement can contribute to enforcing anti-corruption measures. The results show that Law Number 1 of 2023 concerning the Criminal Code in the article concerning corruption, the penalties set for corruptors are very far from what they are entitled to receive. In relation to reports of corruption cases, this study suggests that a public education strategy aiming at educating the general public directly or via social media must be conducted. This strategy intends to increase public awareness and encourage membership in the IFC (Indonesia is Free of Corruption) organization, which provides legal protection against alleged corruption offenders. In addition, regarding the punishment for corruptors, DPR RI (House of Representatives) are suggested to revise the current law that perpetrators of corruption who have amassed more than Rp 100,000,000 will face court-determined punishments, such as the return of illicit gains or the maximum penalty of the death penalty.
Low-background experiment to search for double beta decay of 106Cd using 106CdWO4 scintillator
Authors:   Department of Physics, University of Rome ", Belli P. ,   Tor Vergata",   , Rome, Italy, Bernabei R. , Cappella F. , Caracciolo V. , Cerulli R. , Danevich F.A. , Inchicchitti A. , Kasperovych D.V. , Klavdiienko V.R. , Kobychev V.V. , Leoncini A. , Merlo V. , Polischuk O.G. , Tretyak V.I. ,   National Institute for Nuclear Physics, Rome Section “Tor Vergata”, Rome, Italy,   National Institute for Nuclear Physics, Rome Section, Rome, Italy,   Department of Physics, University of Rome "La Sapienza", Rome, Italy,   Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine,   National Institute for Nuclear Physics, Gran Sasso National Laboratory, Assergi, Italy
Published: September 2023

An experiment to search for 2ε-, εβ+- and 2β+-decays of 106Cd, using a 215 g cadmium tungstate scintillation crystal enriched at 66 % by 106Cd (106CdWO4) is carried out at the Gran Sasso underground laboratory (Italy). Events in the 106CdWO4 detector are recorded in (anti)coincidences with two large-volume CdWO4 scintillation counters. The design of the detector system, calibration and background measurements, methods, and results of data analysis to determine key detector characteristics are described. The experimental data are compared with Monte Carlo simulation results, and a background model is constructed. The radioactive contamination of the setup components is studied. The sensitivity of the experiment approaches the level of theoretical predictions for the 2νεβ+-decay channel, while for other possible 2β-decay channels it is already on the level of lim T1/2 ∼ 1021-1022 years.
Description of energy levels and decay properties in 158Gd nucleus
Authors:   Department of Physics, College of Education for Pure Science, University of Basrah, Basrah, Iraq, Radhi Fahmi Sh. , Kassim Huda H. , Al-Jubbori Mushtaq A. , Hossain I. , Sharrad Fadhil I. , Aldahan N. , Hewa Y. Abdullah Hewa Y. ,   Department of Physics, College of Science, Karbala University, Karbala, Iraq,   Department of Physics, College of Education for Pure Sciences, University of Mosul, Mosul, Iraq,   Department of Physics, Rabigh College of Science & Arts, King Abdulaziz University, Rabigh, Saudi Arabia,   College of Health and Medical Technology, University of Alkafeel, Najaf, Iraq,   Physics Education Department, Faculty of Education, Tishk International University, Erbil, Iraq
Published: September 2023

In this paper, IBM-1 and IBM-2 with a SU(3) limit are used to describe the 158Gd isotope. The calculations of energy levels in the ground state, beta-, and gamma-bands are made up, which account for 15 energy levels. However, we found that the energy states of the same spin of the beta- and vibrational bands become degenerate states. In breaking the SU(3) dynamical symmetry by introducing a value of pairing interaction, the degeneracy is lifted and the energy levels are brought up to the same order as the experimental ones.