bluuebunny/crossref_metadata_2025 huggingface dataset:
La Responsabilidad Social Educativa en las enseñanzas no universitarios: una Revisión Sistemática.
Authors: Martínez Domínguez Luis Manuel
Published: June 2024

Este artículo analiza cómo se está considerando la Responsabilidad Social en el ámbito de la Educación. Con tal fin, se ha llevado a cabo una revisión sistemática de la literatura (SLR) de 24 artículos publicados de 2010 a 2023, en las bases de datos: ERIC, Dialnet y Google Scholar. Se han seguido los criterios de validación de PRISMA 2020. La Responsabilidad Social en el ámbito de la Empresa lleva muchos años de estudio y evolución. Dentro de esta inercia se incluye la Responsabilidad Social Universitaria (RSU) con bastantes estudios al respecto, sin embargo, en el ámbito de la educación no universitaria, los estudios científicos son más bien escasos. Entre las principales conclusiones y la discusión del estudio se constatan múltiples evidencias sobre la necesidad de sensibilizar a las instituciones educativas no universitarias para que vivan la responsabilidad social de forma más intencional y planificada en todas las materias consideradas en la ISO 26000. Se aprecia la falta de interés científico por afrontar el tema de la Responsabilidad Social Educativa (RSEdu) a pesar de la vinculación estrecha que tiene con la implantación de los Objetivos para el desarrollo Sostenible (ODS).
Reflexões sobre o ensino do direito internacional no Brasil: a formação como jurista internacionalista entre a teoria e a prática
Authors: Sanctis de Brito Adriane , Carvalho Veçoso Fabia Fernandes , Rodrigues de Lemos Fabrício José
Published: June 2024

Este artigo tem como objetivo explorar como se concretiza o diálogo entre o ensino do direito internacional e sua prática no contexto brasileiro atual.No levantamento feito pela equipe de pesquisadores REDIAL, 2 as principais universidades da cidade de São Paulo foram selecionadas como uma janela de observação do conteúdo dos programas de ensino de direito internacional no Brasil. A cidade é capital com o maior número de cursos de ensino superior de direito no país, localizada na região com a maior concentração desses cursos em números absolutos.3 A escolha pelas instituições de São Paulo levou em conta essa relevância no contexto nacional e a necessidade pragmática de um recorte inicial de pesquisa, já que um mapeamento nacional teria de levar em conta os cerca de 1300 cursos de direito existentes no país — conhecidamente o país com o maior número de cursos jurídicos do mundo e com uma das maiores populações relativas de advogados.4
En sacrificio del pasado: un diagnóstico de la enseñanza del derecho internacional en Guatemala
Authors: Villagrán Sandoval Carlos Arturo , Cazalí Luis Pedro
Published: June 2024

Este ensayo tiene como propósito mostrar las características, en específico las deficiencias, de la enseñanza del derecho internacional en Guatemala. En concreto, el texto, a través de un análisis crítico pedagógico del contexto de la realidad de la educación jurídica guatemalteca y una aproximación epistemológica del uso y producción de la doctrina en la investigación legal, determina que la academia actual y su enseñanza en la materia Derecho Internacional es de carácter bancario, conceptual y funcionalista. Es bancario, ya que se basa solamente en trasmitir conceptos a sujetos pasivos que se dedican a memorizar sin realizar una cognición propia; conceptual, por cuanto busca trasmitir aquellos conceptos legales bajo una visión extranjera o eurocéntrica del derecho internacional a través de medios pedagógicos que refuerzan un estudio descontextualizado del derecho; y es funcionalista, ya que su investigación se concentra en recopilar conceptos sin análisis, en su mayoría extranjeros y en detrimento de aquellos concebidos en la propia región centroamericana. El resultado, la pedagogía del derecho internacional en Guatemala sacrifica el desarrollo de la consciencia propia centroamericana que se gestaba en la primera mitad del siglo XX, la cual tenía como base una forma de pensamiento que buscaba armonizar lo cosmopolita con lo parroquial, y al mismo tiempo reconocía sus límites en una geopolítica difícil de maniobrar.
Affective disorders and self-injurious behavior in children and young adults with carbohydrate metabolism disorders
Authors: Niedobylski Sylwiusz , Wójcik Aleksandra , Michta Kacper , Starownik Jakub , Próchnicki Michał
Published: June 2024

Introduction: Affective disorders and carbohydrate metabolism disorders are problems of increasing importance in the population of children, teenagers and young adults. Much evidence indicates that these problems may co-occur with increased frequency and have much more serious consequences than on their own.
Material and methods: Inclusion criteria were established for the review of studies and comprised participants under 25 years of age diagnosed with carbohydrate metabolism disorders, psychometric measurements of symptoms of affective disorders and self-aggressive tendencies. Review of the MEDLINE database was conducted.
Discussion: The results of 10 out of 12 studies included in the review indicated significantly increased risk of depression and suicidal tendencies in patients with diabetes. In the described publications, the frequency of affective disorders in a specific population ranged from 1.2% to 47.6% and up to 60.4% for unspecified affective disorder, sub-threshold and fully symptomatic, and the HR ranged from 1.33 to 2.0 for fully symptomatic affective disorders and up to 6.49 for unspecified affective disorder, sub-threshold and fully symptomatic. Descriptions of the incidence of self-injurious behavior and suicidal tendencies estimate them in the range from 0.8% to 35.7%, and in the studies comparing to a control group, the risk for a suicide attempt was between HR: 1.7 and 3.25.
Conclusions: The occurrence of affective disorders in children and young adults is significantly more frequent in patients with diabetes compared to patients without carbohydrate metabolism disorders.

Keywords: affective disorder, depression, suicide, diabetes mellitus, children
O QUADRILÁTERO FERRÍFERO DE MINAS GERAIS: uma análise sobre sua estrutura produtiva no período de 2010 a 2019
Authors: Viana Francisca Diana Ferreira , Belisário Helen Patrícia , Pereira Braga Francisco Laércio
Published: June 2024

Este artigo teve como objetivo analisar o comportamento da variável emprego para setores selecionados dentro da estrutura produtiva dos municípios pertencentes à região do Quadrilátero Ferrífero (QF) – Minas Gerais. Tais setores estão ligados às Tecnologias da Informação e Comunicação, ao conceito de Cidades Inteligentes e às Atividades que Caracterizam o Turismo (ACTs). O intuito específico deste estudo é captar possíveis mudanças setoriais, entre os anos de 2010 e 2019, que beneficiem a diversificação produtiva desta região.  Para isto, utilizaram-se as seguintes técnicas de economia regional: método diferencial-estrutural (shift-share); coeficientes de especialização e localização. Os resultados principais mostram pouca ou nenhuma vantagem regional e/ou de especialização para setores ligados às TICs, exceção ao setor de Educação.
Un enfoque de cibersabiduría para la educación en ciudadanía digital. Percepciones de adolescentes españoles
Authors: Gómez-Gutiérrez Juan Luis , Fernández-Espinosa Verónica , Harrison Tom
Published: June 2024

INTRODUCCIÓN. En la era digital, el uso de las redes sociales es una parte integral de la vida de los adolescentes. Es importante que estos conozcan cómo utilizar las redes sociales de manera responsable y ética. La educación del carácter y la cibersabiduría son esenciales para ayudarles a comprender la importancia de las virtudes en el uso de las redes sociales. Se exploran en este estudio las opiniones de adolescentes sobre el carácter, la virtud y la sabiduría en la era digital, así como sus prácticas al respecto. La investigación se ha centrado en la búsqueda de referentes en los diversos aspectos abarcados en el presente trabajo. El MÉTODO ha consistido en la aplicación de un cuestionario ya validado a una muestra de población de 1.784 estudiantes de los cuatro cursos de la ESO matriculados en centros públicos, concertados y privados de diferentes localidades de la Comunidad de Madrid. Los RESULTADOS muestran las valoraciones que hacen los adolescentes acerca de su experiencia de uso de las redes sociales en su entorno de amistades y compañeros, así como la empatía mostrada en sus comunicaciones, resaltando en la DISCUSIÓN los comportamientos lingüísticos que manifiestan las intenciones comunicativas de sus mensajes en las redes, así como las cualidades y virtudes que consideran más o menos relevantes tanto para ellos mismos como sus amigos y compañeros. Las virtudes más valoradas en el uso de las redes sociales tanto para sí mismos como para sus amigos y compañeros son las llamadas cívicas o sociales, seguidas por las morales e intelectuales.
Análisis de la competencia digital docente en Educación Infantil. Perfil e identificación de factores que influyen
Authors: Romero-Tena Rosalía , Barragán-Sánchez Raquel , Gutiérrez-Castillo Juan Jesús , Palacios-Rodríguez Antonio
Published: June 2024

INTRODUCCIÓN. El uso de la tecnología digital por parte de los niños en el hogar y en la escuela ha aumentado mucho en los últimos años. Este fenómeno ha dado lugar a estudios que confirman la necesidad de una adecuada alfabetización digital en los niveles educativos inferiores y, por ende, del profesorado de la etapa de Educación Infantil que les permita adaptarse a la nueva realidad educativa y social. MÉTODO. Se diseña la presente investigación con una metodología ex post facto, con enfoque de investigación descriptivo y de contraste. Su objetivo principal es conocer el nivel de autopercepción de la competencia digital docente (CDD) del profesorado de Educación Infantil en la Comunidad Autónoma de Andalucía (España). Posteriormente, se analizan aquellas variables de las que derivan diferencias respecto al nivel competencial y se establecen perfiles de identificación. Han participado un total de N= 8881 docentes, a los que se les administró el instrumento DigCompEdu Check-in englobado dentro del Marco Europeo de Competencia Digital Docente DigCompEdu. Aplicadas las pruebas correspondientes (análisis descriptivo, estadístico de contraste y prueba de Kruskal-Wallis, entre otras). RESULTADOS. Muestran que los sujetos encuestados tienen un nivel de CDD moderado en la mayoría de las áreas estudiadas, aunque en algunas de ellas su nivel competencial es bajo. Asimismo, el estudio determina que existen diferencias respecto a las variables edad, años de experiencia y formación recibida. DISCUSIÓN. Las conclusiones derivadas de este estudio pueden ayudar a desarrollar intervenciones educativas enfocadas a mejorar el bajo nivel competencial de los docentes.
La competencia digital docente y el diseño de situaciones innovadoras con TIC para la mejora del aprendizaje
Authors: Fernández-Cruz Francisco José , Rodríguez-Legendre Fidel , Sainz Vanesa
Published: June 2024

INTRODUCCIÓN. La competencia digital docente se plantea como un tema de creciente relevancia en la educación contemporánea, además de su influencia en la mejora del aprendizaje. En tal sentido, el papel transformador de las tecnologías de la información y la comunicación (TIC) en la enseñanza y el aprendizaje resalta la importancia de dicha competencia, tanto en la formación del profesorado como en el desarrollo integral de los estudiantes. En consecuencia, el uso de tecnologías en la educación ha sido ampliamente investigado, evidenciando mejoras en resultados académicos, motivación y atención a la diversidad. Sin embargo, también se reconocen limitaciones y áreas de mejora. MÉTODO. Se revisa la literatura existente sobre competencia digital docente y su aplicación en contextos educativos diversos, presentando una selección de diez artículos que analizan la relación entre la competencia digital docente y la mejora del aprendizaje con las TIC, así como los desafíos y oportunidades que presenta esta integración en el ámbito educativo. Para tal fin, además de las habilidades técnicas, se contempla el desarrollo de competencias esenciales para un tratamiento efectivo y ético en el mundo digital. RESULTADOS. Los artículos incluidos en el monográfico abordan diversas temáticas como la autopercepción de la competencia digital, la influencia de la modalidad de enseñanza, el uso de estrategias innovadoras con recursos digitales, la formación inicial del profesorado, el uso adecuado de la tecnología y sus riesgos y los beneficios de los medios tecnológicos para el alumnado con necesidades educativas especiales, entre otros. Se ofrece una perspectiva única sobre cómo las TIC pueden ser aprovechadas de manera innovadora para mejorar la práctica educativa y promover el desarrollo de competencias clave en los estudiantes. DISCUSIÓN. El potencial transformador de las TIC en la educación del siglo XXI enfatiza la necesidad de desarrollar la competencia digital docente para aprovechar plenamente estas tecnologías en el proceso de enseñanza-aprendizaje. Además, es necesario considerar las habilidades pedagógicas y la capacidad innovadora del docente para diseñar situaciones de aprendizaje efectivas y creativas. De esta forma, para lograr un mayor impacto del uso didáctico de las TIC como herramientas facilitadoras del proceso educativo, es crucial profundizar en la actualización del manejo de los recursos digitales en el perfil competencial del docente. Esto implica definir y desarrollar la competencia digital docente, así como mejorar la formación del profesorado e identificar sus necesidades formativas en el campo tecnológico.
Predictores del riesgo de adicción a las redes sociales e Internet
Authors: Rodríguez-Sabiote Clemente , Úbeda-Sánchez Álvaro Manuel , De Barros-Camargo Claudia , Álvarez-Ferrándiz Daniel
Published: June 2024

INTRODUCCIÓN. Este estudio se ha basado en el objetivo general de identificar los factores que predicen el riesgo de convertirse en adicto a Internet o a las redes sociales. MÉTODO. Para la investigación se ha utilizado un diseño descriptivo, utilizando la media, asimetría y curtosis, con una regresión binomial logística. Para la investigación se utilizó una muestra de 217 estudiantes universitarios, todos ellos de primer curso de la Facultad de Ciencias de la Educación de la Universidad de Granada. En este estudio se consideraron las variables demográficas de edad y género dentro de los estudiantes investigados, se observa que los estudiantes tenían una edad media de 19.37 años y una mediana de 18 años. En el cual, podemos destacar que el género mayoritario de la muestra es el femenino con un (66.8%) y el 33.2% restante es masculino. Por otro lado, para la recogida de datos se utilizó la escala de riesgo de adicción a las redes sociales e internet para adolescentes (ERA-RSI). RESULTADOS. Los factores que predicen con mayor precisión el riesgo de adicción a las redes sociales y a Internet en los estudiantes universitarios de primer año son la normalización, las dificultades personales y el ego. La soledad resultó ser predictiva, pero en menor grado, y, por último, la desinhibición resultó no tener influencia predictiva. DISCUSIÓN. Se ha comprobado que las aplicaciones telefónicas que se lanzan constantemente en Internet tienen una gran influencia en los predictores de la adicción.
Somos las únicas poetas – todos los demás son prosa
Authors: Rivera Garretas María-Milagros
Published: June 2024

Este texto es una interpretación de la relación amorosaentre Emily Dickinson y Susan Huntington Gilbert (desde1856 Susan Huntington Dickinson) a la luz de la místicabeguina medieval europea, en particular de su gran hallazgo:le Loingprés, la Lejoscerca, hallazgo desarrollado en textos deHadewijch de Amberes y en el Miroir des simples Ames deMargarita Porete. Las beguinas fueron un tópico literario dela época victoriana que Emily Dickinson conocía, admirabay menciona en su obra poética. Trato también del deseo ydel plan de Emily Dickinson, claramente expresados en sucorrespondencia con Susan, de celebrar nupcias clitóricascon ella y de vivir libremente de la poesía de ambas, sinincesto ni sumisión a los Dickinson, padre e hijo.
Aborto espontáneo de primer trimestre. El duelo invisible
Authors: Alarcón-Catalán Camila , Romero-Marchant Sofía , Villagran-Becerra Marisa , Cabello-Hidalgo Paula , Padilla-González Barbara
Published: June 2024

Objetivo. El objetivo del estudio fue describir la experiencia durante la atención hospitalaria de gestantes de primer trimestre ingresadas por aborto espontáneo y sus vivencias luego del alta postaborto. Método. Estudio cualitativo con muestreo no probabilístico. Se utilizó la base de datos de un hospital de alta complejidad de Santiago de Chile, siendo el tamaño muestral de 9 participantes definido por el criterio de saturación. Se recolectaron los datos con una entrevista semiestructurada y se procesaron realizando análisis narrativo. Resultados. Fueron categorías identificadas: emociones y sentimientos de las madres relacionadas al aborto, que incluye el rechazo del embarazo, el miedo a otra gestación y la vivencia emocional de las parejas. Otra categoría fue la relación interpersonal con prestadores, pareja y familia, en la que se destacó el trato a la usuaria, el prejuicio sobre la causa del aborto, la cantidad y calidad de información entregada sobre el diagnóstico y los procedimientos; también se reconocieron los ritos en los primeros días postaborto y el estado psicológico de la mujer posterior al aborto. Fue una categoría emergente la visión social del aborto voluntario. Conclusión. Las habilidades comunicacionales del profesional y la capacidad de acompañar la experiencia emocional ante la pérdida reproductiva influyen en la salud mental, el proceso de duelo y la valoración de la madre sobre la calidad de la atención. El seguimiento de la condición psicológica de la usuaria es insuficiente.
An Act of Christ and the Church: The Order of Mass with the Participation of Only One or No Minister
Authors: Vanberkum Anthony
Published: June 2024

abstract: A minor innovation of the 1970 Missale Romanum was its inclusion of two distinct Orders of Mass: the Ordo Missae cum populo and the Ordo Missae sine populo . Both of these ordines remain in the current Missale Romanum , with a few alterations. This duplication of ordines Missae was a novelty in three respects. First, the Consilium for the reform of the liturgy interpreted Sacrosanctum Concilium to call for a division of forms of Mass based on the presence or absence of the participation of the people, rather than on the presence or absence of singing, as had been the case previously. Second, the Missale Romanum as revised by Pope Pius V had used the same rubrics regardless of the size of the congregation, focusing rather on the role of the server. Third, the new Institutio generalis Missalis Romani lays out specific rubrics for the priest celebrating alone, something which previously had not been provided for in any substance. These rubrics do, however, still require further elaboration to be made practical, and this article applies the principles discerned from the revision process leading to the Ordo Missae sine populo to arrive at an interpretation of the current rubrics for a priest who celebrates Mass alone.
Monarchist Crusade for Republican Society: The Legionary Fund and the ‘Castle’ in Interwar Czechoslovakia
Authors: Gecko Tomáš
Published: June 2024

Abstract: The article analyses the financial system of the ‘Castle’, a cluster of social networks around presidents Tomáš G. Masaryk and Edvard Beneš in the interwar Czechoslovak Republic. It focuses on the Legionary Fund, one of the key instruments of the Castle’s clientelistic network. Masaryk and Beneš created this fund out of the money earmarked for the Czechoslovak Legions that supported their liberation movement against the Habsburg Monarchy during World War One. The Legionary Fund shows how the Castle attempted to bridge the institutional weaknesses of the nascent republican establishment with money, and it untangles the (dis)continuities of presidential financing in Czechoslovakia with the political culture of Austria-Hungary.
End of Discussion: Presidential Succession and Regime Legitimation in Russian Official Discourse during Putin’s Fourth Term
Authors: Petersson Bo
Published: June 2024

Abstract: After the adoption of the constitutional changes in Russia in 2020 the issue concerning who would be Vladimir Putin’s successor was seemingly disarmed as he could now legally stay on in office until 2036. However, the full-scale invasion launched against Ukraine in February 2022 has increased the need for studying the issue, as the war has come to be so closely associated with Putin personally. This article discusses how official Russian discourse, as mirrored through the presidential website kremlin.ru, has dealt with the issue of presidential succession during Putin’s fourth term in office (2018–24), and how the subject has been taken off the public agenda during this time. The argument is that the silence on the matter is indicative and intentional. The regime acts as if Putin’s continued incumbency is taken for granted and accepted as legitimate by default by the public. In Weberian terms, the regime has shifted from relying on charismatic and legal-rational legitimation to claim instead what can be described as neo-traditional legitimacy.
Improving spectral linewidth performance of InP quantum dots by promoting size-focused growth and decreasing exciton-phonon coupling
Authors: Wang Linfeng , Bai Jinke , Huang Xiaoyue , He Xuanhui , Yang Zhiwei , Zhang Tingting , Li Qinghua , Jin Xiao , Wang Yuxiao , Zhang Xueru , Song Yinglin
Published: June 2024

InP-based quantum dots (QDs) are widely adopted as a superior alternative to CdSe-based QDs in various fields owing to their high quantum yield, environmental friendliness, and excellent stability. However, improving its color purity remains a challenging task. In this work, we employ a multistage heating strategy to optimize the nucleation and shell growth processes of amino-phosphine-based InP/ZnSe/ZnS QDs for reducing emission linewidths. The multistage heating strategy mitigates the undesired formation of small-size cores by decreasing monomer supersaturation during the nucleation process, thereby promoting size-focusing growth. During the shelling process, multistage heating effectively suppresses Zn2+ diffusion into the InP core while ensuring high-quality shell growth, thus reducing the homogeneous broadening caused by exciton-phonon coupling. Compared to classical synthesis, the multistage heating strategy can reduce the emission linewidth of nucleation and shelling by 13.2% and 30.9% respectively. The optimized InP/ZnSe/ZnS QDs exhibit a narrow full width at half maximum (FWHM) of 41.5 nm at 630 nm, representing significant progress in studying spectral linewidths of amino-phosphine InP QDs. This work provides potential insights for further improving the spectral linewidth performance of InP QDs or other nanocrystals with similar reaction-limited growth systems.
Particle composition-specific approach to estimate the particulate organic carbon concentration off the coastal areas of Guangdong and eastern Hainan Island
Authors: Wei Panpan , Zhou Wen , Li Cai , Deng Lin , Zheng Wendi , Xu Zhantang , Shi Zhen , Wang Zihui , Qin Min , Yang Zeming , Cao Wenxi
Published: June 2024

High optical complexity caused by the variability of marine particles poses a major challenge to the development of bio-optical algorithms for particulate organic carbon (POC) concentration retrievals from optical measurements in coastal waters. Here, we developed a particle composition-specific approach to estimate POC off the coastal areas of Guangdong and eastern Hainan Island, China. The ratio of phytoplankton absorption to detritus absorption coefficient aph(443)/ad(443) was used to optically discriminate water types. The samples with aph(443)/ad(443) ≤ 4.9 showed a significant correlation between POC and absorption line height at 676 nm aLH(676) (R2 = 0.75, n = 70, p < 0.01). In contrast, aph-dominant samples with aph(443)/ad(443) > 4.9 had a high covariance between POC and particle scattering coefficient at 675 nm bp(675) (R2 = 0.85, n = 37, p < 0.01). Validation with an independent dataset yielded a small positive bias (R2 = 0.81, APD = 23.10%, RMSE = 29.01 mg m–3, RPD = 16.31%). The approach provided a better estimation of POC concentration in coastal waters compared with univariate algorithms. A depth-resolved index aLH(676)/bbp(442) was defined as the ratio of absorption line height to particle backscattering coefficient. Using the depth-resolved index instead of aph(443)/ad(443) for optical water type classification can be utilized to represent the vertical variations of POC in 1 m bins, and can complement remote sensing observations to accurately characterize the three-dimensional structure of POC distribution in the oceans.
Composite photonic lattice with a broad channel to sustain topological interface states
Authors: Xiang Anli , Zhang Zhuohang , Jiang Tao , Wu Gaofeng , Han Lu , Cai Yangjian
Published: June 2024

In the field of topological photonics, one goal is to seek specialized structures with topological protection that can support the stable propagation of light. We have designed a topological configuration featuring a broad channel to sustain edge or interface states. The topological properties are elucidated by analyzing the energy spectrum, eigenstates, and winding numbers. Furthermore, the propagation characteristics of light within our structure are examined through the computation of intensities derived from the coupled mode equations. Our findings reveal that the structure is capable of confining light to the central region, facilitating stable and robust propagation for large-sized beams. Additionally, simulations conducted using commercial software have substantiated the theoretical analysis. Our finding may have significant implications for the modulation of structured light and the development of photonic devices with wide channel capabilities.
Phase manipulation in reflective phase gradient photonic crystals
Authors: Zhang Xiao , Liu Jie , Liang Liang , Liang Li , Li Fei-Fei , Poo Yin
Published: June 2024

Phase gradient photonic crystals (PGPCs) are proposed as promising candidates for phase manipulation and can enable arbitrary electromagnetic functions, such as deflection and focusing. In stark contrast to the proposed metasurfaces, the phase variation in PGPCs arises from simple edge-configuration rather than structure resonance. Moreover, the reflection magnitude maintains a constant of 1 for the reflective case in the Bragg gap, which affords significant convenience in design. Both theoretical and experimental results demonstrate that the deflector based on reflective PGPCs possesses strong angular stability and is applicable across a broadband frequency range. Our work provides a promising avenue for the implementation of phase manipulation on novel optical platforms, facilitating the development of innovative optical devices with distinctive features in the future.
Vector magnetic field sensor based on coreless D-shaped fiber and magnetic fluid
Authors: Tian He , Tian Ke , Zhang Haoyang , Shao Laipeng , Wang Yongmei , Lu Hanglin , Shao Weijia , Tang Jian , Hu Junhui
Published: June 2024

A vector magnetic field sensor based on a ferrofluid-encapsulated coreless D-shaped fiber is proposed and demonstrated. The core of the singlemode fiber (SMF) is completely removed by fiber polishing technology, and the remaining part transformed into a multimode interference (MMI) waveguide. The exposed side-polishing plane enable the evanescent field to interact with surrounding magnetic fluid (MF). Relying on the non-circularly symmetric geometry of the coreless D-shaped fiber and the MF refractive index modulation by the orientation and intensity of the applied magnetic field, vector magnetic field sensing is achieved. The magnetic field response characteristics of the coreless D-shaped fibers with different residual thicknesses (RTs) are investigated. The experimental results show that a reduced RT yields enhanced sensitivity, and the magnetic field intensity sensitivity reaches -0.231 nm/mT and -0.483 dB/mT at a RT of 42.7 µm. The developed coreless D-shaped fiber sensor exclusively utilizes SMF, thereby offering a cost-effective scheme for the fabrication of vector magnetic field sensors.
Tunnel silicon nitride manipulated reconfigurable bi-mode nociceptor analog
Authors: Yang Chengdong , Liu Yilong , Su Linlin , Li Xinwei , Xu Lihua , Cheng Qimei
Published: June 2024

Neuromorphic applications have shown great promise not only for efficient parallel computing mode to hold certain computational tasks, such as perception and recognition, but also as key biomimetic elements for the intelligent sensory system of next-generation robotics. However, achieving such a biomimetic nociceptor that can adaptively switch operation mode with a stimulation threshold remains a challenge. Through rational design of material properties and device structures, we realized an easily-fabricated, low-energy, and reconfigurable nociceptor. It is capable of threshold-triggered adaptive bi-mode jump that resembles the biological alarm system. With a tunnel silicon nitride (Si3N4) we mimicked the intensity- and rehearsal-triggered jump by means of the tunneling mode transition of Si3N4 dielectric. Under threshold signals the device can also express some common synaptic functions with an extremely low energy density of 33.5  fJ/μm2. In addition, through the modulation of Si3N4 thickness it is relatively easy to fabricate the device with differing pain degree. Our nociceptor analog based on a tunneling layer provides an opportunity for the analog pain alarm system and opens up a new path toward threshold-related novel applications.
All-optical nanoscale thermometry with silicon carbide color centers
Authors: Liu Chengying , Hu Haibo , Liu Zhengtong , Xiao Shumin , Wang Junfeng , Zhou Yu , Song Qinghai
Published: June 2024

All-optical thermometry plays a crucial role in precision temperature measurement across diverse fields. Quantum defects in solids are one of the most promising sensors due to their excellent sensitivity, stability, and biocompatibility. Yet, it faces limitations, such as the microwave heating effect and the complexity of spectral analysis. Addressing these challenges, we introduce a novel approach to nanoscale optical thermometry using quantum defects in silicon carbide (SiC), a material compatible with complementary metal-oxide-semiconductor (CMOS) processes. This method leverages the intensity ratio between anti-Stokes and Stokes emissions from SiC color centers, overcoming the drawbacks of traditional techniques such as optically detected magnetic resonance (ODMR) and zero-phonon line (ZPL) analysis. Our technique provides a real-time, highly sensitive (1.06% K−1), and diffraction-limited temperature sensing protocol, which potentially helps enhance thermal management in the future miniaturization of electronic components.
Transformations in participation, creative and political practices in the punk scene in Bogotá during the COVID-19 pandemic
Authors: Rodríguez-Camacho Javier A. , Campion Minerva , Arango Julián Jaramillo , Pavlich-Mariscal Jaime Andres , Calle-Alzate Simón
Published: June 2024

This article studies the effects of the COVID-19 pandemic through its different phases by looking at the case of Bogotá’s punk scene and analysing the activities of different collectives involved in the organization of music shows and other types of gatherings. We contribute to understanding those effects by answering the question of how the pandemic has transformed the creative, collaborative and political practices of its participants. We consider four periods of analysis: pre-pandemic, lockdown, new normal and post-peak reactivation. We use a mixed methodology comprising interviews with members of the collectives and the analysis of secondary data obtained from the social media posts made by these collectives. We use the latter to compare audience participation and reactions before, during and after the COVID-19 lockdown period with data from 2019, 2020 and 2021. A network analysis confirms the existence of a network of collectives identifiable as a central node of the punk scene. We find that remote activities were never considered more than a temporary and imperfect alternative from creative, political and economic perspectives. Economic impacts were severe and led to the closure of several collectives. Though a political discourse was not articulated as such by the scene, political thought and action aligned with social protests in Colombia and unified in opposition to market-oriented government policies in the cultural field. A slow return to in-person activities took place in the scene, leaving remote events behind, re-establishing live music at the centre of the scene and allowing for informal socialization among creators, producers and audiences. By looking at the three effects globally, we conclude that the punk scene did not recover completely and did not reach the level of organization it had before the pandemic.
Ambiente laboral inclusivo para surdos sob a ótica do Turismo: um estudo sobre a cidade de São Paulo
Authors: Brito Maria Carolina Muniz e Silva de , Silveira Carlos Eduardo
Published: June 2024

Em 2010, o IBGE relatou a existência de 2,2 milhões de Pessoas com Deficiência Auditiva no Brasil, sendo 436.000 pessoas no estado de SP e, dessas, 120.600 no município de São Paulo. Já os dados da RAIS de 2020 determinaram que o município de São Paulo contava com 51.458 vínculos ativos de Pessoas com Deficiência, sendo 7.950 com deficiência auditiva. A pesquisa tem como objetivo conhecer o perfil do colaborador do trade turístico que atua na capital, pelo olhar de integrantes do departamento de gestão de pessoas das corporações. Especificamente, tentará identificar como o surdo se aproxima da colocação profissional nessa área de estudo. De caráter exploratório, a pesquisa utiliza análise descritiva e analítica a partir de uma pesquisa bibliográfica, documental e análise de discurso com aplicação de quatro diferentes sondagens via e-mail, entre 12/2021 e 04/2022. O cenário investigado aponta um ambiente inóspito e circula em uma penumbra da responsabilidade social das organizações públicas e privadas do Turismo em relação à empregabilidade de surdos. O estudo traz provocações ao mercado e à academia para “olhar os invisíveis”. Como resultado, o estudo se torna pioneiro no Brasil na área 27, incluindo a pós-graduação no Turismo, em decorrência de seu objeto.
Early Dangling Protocol Post Lower Extremity Free Flap Surgery: An Evidence-based Case Report
Authors: Atmodiwirjo Parintosa , Aditya Timothy , Tafdhil Tardha Muhammad , Nazwan Sani Fadli
Published: June 2024

Background: Free flap is tissue transplantation by including its feeding artery from one body part to another. Intravascular thrombosis is the main obstacle commonly faced in the anastomosed part. Yet, postoperative extremity mobilization has widely become the main question related to flap failure. Only a few studies explained the best time to perform lower extremity mobilization post free flap surgery to maintain adequate flap viability. This study aimed to find the effectiveness of the dangling protocol in reducing lower extremity free flap surgery complications.
Methods: A literature search was conducted through PubMed, Cochrane, and Embase in March 2022 using “Free tissue flap” or “free flap” AND “dangling protocol” or “early ambulation” AND “postoperative complication” keywords. Title and abstract screening, full-text reading, and eligibility assessment were performed to find related evidence regarding our clinical question.
Results:  The two relevant articles are a systematic review and a clinical trial study. Both studies showed 94-100% flap viability after applying early dangling protocol as early as three days post lower leg free flap surgery with level evidence of IIB up to IV without any incidence of flap necrosis.
Conclusion: Early dangling protocol can be implemented safely after free flap surgery of the lower extremity without postoperative complications such as total or partial necrosis.
Cyanoacrylate Glue Burn Injury in 2 Years Old Child
Authors: Wardhana Aditya , Christabella Rininta
Published: June 2024

Cyanoacrylate, a compound formed from formaldehyde and alkyl cyanoacetate, serves as a potent adhesive in daily life, cosmetics, medicine, and industry. Variants like methyl 2-cyanoacrylate and ethyl 2-cyanoacrylate are common for daily  and industrial use, with butyl 2-cyanoacrylate preferred in surgery as an adhesive for its low toxicity. While typically safe for skin, frequent contact can lead to dermatitis, paronychia, and onycholysis. This case report highlights a superficial burn in a two-year-old child caused by cyanoacrylate adhesive. Such burns are rare but require attention. Treatment involves gently separating the adhesive from the skin using soapy water, followed by the use of acetone, petroleum jelly, 0.9% NaCl solution, or 5% sodium bicarbonate solution, followed by the use of pumice stone or nail file to remove residue. Preventive measures include careful glue placement to limit access, especially by children. Caution is crucial when handling cyanoacrylate adhesive near cotton or wool due to its adhesive properties. In summary, cyanoacrylate offers versatility but requires caution to prevent dermatological issues and burns, especially when catalysed by cotton.
Jornada digital MEI
Authors: Sant'Ana Maria Eduarda Silva , Machado Kascilene Gonçalves , Corrêa Stela Cristina Hott , Lins Filho Marcos Luiz
Published: June 2024

Governador Valadares possui cerca de 25 mil microempreendedores individuais (MEI), somando 72% do total de empresas estabelecidas no município (Simples Nacional, 2022). Este modelo de organização empresarial é de significativa relevância, uma vez que ele é a base da geração da renda domiciliar de muitas famílias valadarenses. A Secretaria Municipal de Desenvolvimento, Ciência, Tecnologia e Inovação (SMDCTI) tem favorecido e promovido o empreendedorismo e a inovação entre as empresas do município, notadamente dos MEI, por meio de diversos projetos, muitos deles em parceria com a UFJF/GV. Nesse sentido, para oferecer maior conhecimento para os microempreendedores foi realizada uma capacitação gratuita que ocorreu de forma presencial, com duração de três semanas, abordando os principais assuntos sobre o marketing digital. Assim, o objetivo deste relato de experiência é detalhar o processo de capacitação, bem como destacar os desafios e os aprendizados enfrentados no desenvolvimento do projeto e durante a capacitação dos MEI no marketing digital. Ao longo do projeto, foi observada a importância do uso do marketing digital pelos microempreendedores individuais e como essa relação desempenhou um papel importante no desenvolvimento de suas atividades.
Dinâmica Hídrica do Solo de Zona Ripária do Chapadão do Diamante – Serra da Canastra, Minas Gerais
Authors: Confessor Jefferson Gomes , Silva Lara Luiza , Lima Natália Aparecida Rodrigues , Santos Anna Beatriz Pereira dos
Published: June 2024

O parque nacional da Serra da Canastra-MG consolida-se como uma unidade de conservação inserida no Bioma de Cerrado que abriga em seu interior nascentes de importantes bacias hidrográficas brasileiras. Visto sua importância para dinâmica hídrica local e nacional, este trabalho teve por objetivo de analisar e compreender as características físico-hídricas do solo de uma zona ripária presente em seu interior. Utilizou-se para prospecção de dados de campo um simulador de chuvas e um infiltrômetro de anéis concêntricos. Os resultados demostraram para área em estudo alta capacidade de infiltração, sendo escoados superficialmente 23,74% dos volumes precipitados artificialmente (intensidade 57,4mm/h), expondo valores de velocidade de infiltração básica (VIB) considerados como muito altos (50,74 mm/h). No geral, os valores estão associados a dinâmica dos elementos paisagísticos, destacando a relevância da vegetação em sua cobertura vegetal e dos atributos físicos do solo, os quais repercutiram na modulação de sua capacidade de reter, infiltrar e armazenar grandes volumes de água. Neste sentido, destaca-se a importância destas áreas para os ambientes, as quais são responsáveis pela proteção dos cursos d’água, consolidando-se como barreiras frente a fluxos erosivos advindos de áreas vertente acima, incorporando a água no perfil do solo de modo a armazená-la e disponibilizá-la ao longo do tempo, tornando-se locais de regulação hídrica.
Impacto da rodovia BR-282 na mortalidade de felídeos silvestres no extremo oeste de Santa Catarina, Brasil: ameaça a conservação
Authors: Pereira Karen Cristine de Albuquerque Ferreira , França Raqueli Teresinha , Preuss Jackson Fabio
Published: June 2024

Dos impactos antrópicos, os atropelamentos estão entre as principais causas de morte de animais silvestres, já que as rodovias e estradas acarretam na fragmentação dos habitats naturais. Dentre esses, os felídeos são fortemente impactados de maneira negativa e apesar das estradas serem citadas como potenciais ameaças, poucos estudos abordam como os indivíduos da família Felidae interagem com esses ambientes. Com isso, o objetivo do estudo foi descrever a riqueza e composição de felídeos silvestres, analisar o efeito espacial e temporal, e identificar hotspots de atropelamentos dessas espécies em um trecho da BR-282 entre as cidades de São Miguel do Oeste e Paraíso, no extremo oeste do Estado de Santa Catarina. Durante o período de dezembro de 2021 a novembro de 2022, percorremos um trecho de 28 km semanalmente para coleta de dados de felídeos silvestres atropelados, sendo que em cada carcaça avistada, o veículo era estacionado para realizar a coleta de informações, o registro fotográfico e as coordenadas geográficas. Nesse período encontramos 26 exemplares de três diferentes espécies, sendo elas Leopardus guttulus (gato-do-mato-pequeno), Leopardus wiedii (gato-maracajá) e Herpailurus yagouaroundi (jaguarundi). Além do número expressivo de felídeos silvestres encontrados, foi identificado um hotspot de atropelamentos dessas espécies.
Expression Analysis of Defense Related Genes in Rice Response to Bipolaris oryzae, the Causal Agent of Rice Brown Spot
Authors: Songkumarn Pattavipha , Chaijuckam Patcharavipa , Tongsri Veeranee , Guerrero Jonathan Jaime G.
Published: June 2024

The rice defense mechanism was studied against Bipolaris oryzae, the rice brown spot fungus, in two Thai rice varieties, Khao Dawk Mali 105 (KDML 105) and Jao Hom Nin (JHN) (showing highest and lowest susceptibility to B. oryzae, respectively). The expression was evaluated of eight genes through real-time quantitative reverse transcription polymerase chain reaction. The gene involved in the salicylic acid (SA) signaling pathway (OsPAL) and the pathogenesis related genes (OsPR1b and OsPBZ1) were upregulated in both varieties with no significant differences. Despite higher expression of the genes involved in the jasmonic acid (JA) signaling pathway (OsLOX and OsAOS2) in JHN, the expression of JiOsPR10 was not significantly different in both varieties. The genes involved in the ethylene (ET) signaling pathway (OsACS1 and OsEIN2) were expressed more highly and far more rapidly in KDML 105 than JHN. Overall, our results demonstrated that the investigated genes related to SA, JA and ET defense pathways may not play a major role in rice resistance against B. oryzae. Furthermore, the high level of transcript accumulation of genes related to the ET signaling pathway may interfere with the ability of rice to resist B. oryzae. The study provided information for a better understanding of rice defense mechanisms against B. oryzae.
Effect of electron mobility variation on short channel effects in nanoscale double gate FinFETs: A comparative study
Authors: Shehu Nura Muhammad , Garba Babaji  , Mutari Hajara Ali
Published: June 2024

This work investigates the impact of electron mobility variations on short channel effects (SCEs) in different semiconductor materials using FinFETs. Using PADRE simulator, the work examines Gallium Arsenide (GaAs), Gallium Antimonide (GaSb), Gallium Nitride (GaN), and Silicon (Si) FinFETs, analyzing performance metrics such as Drain Induced Barrier Lowering (DIBL), Subthreshold Swing (SS) and Threshold Voltage roll-off. The result shows that GaN-FinFET exhibits lowest subthreshold swing of 63 mV/dec at electron mobility of 10000 cm2/Vs, and threshold voltage of 0.44V at electron mobility of 10000 cm2/Vs, while Si-FinFET exhibits lowest DIBL of 3 mV/V at (4000-10000) cm2/Vs. This finding contributes to advancing the understanding of short channel effects in nanoscale FinFETs and provides valuable insights for optimizing device performance in future semiconductor technologies.
Review on Coordination of Time Overcurrent Relays in Electrical Distribution Network
Authors: Mhagama Godfrey , Y. Hamisi Ndyetabura , Naiman Shililiandumi
Published: June 2024

Integration of distributed generators in micro grid causes bidirectional current flow as a result of the need for readjustment of the setting of the overcurrent protective relays in the electrical network. Adaptive coordination is one of the solutions that adjust the setting of protective relays according to the dynamics of the distribution network. Various algorithms had been reported on the adaptive coordination of time overcurrent relays. This paper reports a survey about the coordination of time overcurrent relays in micro grid electrical distribution network. The review found that there is limited research on distributed control rules of the multi agent coordination of protection relays. Furthermore, it was found that the trend of coordination algorithms focused on the nature inspired algorithms.
Nonoccurrence of Lavrentiev gap for a class of functionals with nonstandard growth
Authors: De Filippis Filomena , Leonetti Francesco , Treu Giulia
Published: June 2024

We consider the functional

ℱ

(

u

)

≔

∫

Ω

f

(

x
,
D
u

(

x

)

)

d
x
,

{\mathcal{ {\mathcal F} }}\left(u):= \mathop{\int }\limits_{\Omega }f\left(x,Du\left(x)){\rm{d}}x,

where

f

(

x
,
z

)

f\left(x,z)

satisfies a

(

p
,
q

)

\left(p,q)

-growth condition with respect to

z

z

and can be approximated by means of a suitable sequence of functions. We consider

B

R

⋐

Ω

{B}_{R}\hspace{0.33em}\Subset \hspace{0.33em}\Omega

and the spaces

X
=

W

1
,
p

(

B

R

,

R

N

)

and

Y
=

W

1
,
p

(

B

R

,

R

N

)

∩

W

loc

1
,
q

(

B

R

,

R

N

)

.

X={W}^{1,p}\left({B}_{R},{{\mathbb{R}}}^{N})\hspace{1.0em}\hspace{0.1em}\text{and}\hspace{0.1em}\hspace{1.0em}Y={W}^{1,p}\left({B}_{R},{{\mathbb{R}}}^{N})\cap {W}_{\hspace{0.1em}\text{loc}\hspace{0.1em}}^{1,q}\left({B}_{R},{{\mathbb{R}}}^{N}).

We prove that the lower semicontinuous envelope of

ℱ

∣

Y

{\mathcal{ {\mathcal F} }}{| }_{Y}

coincides with

ℱ

{\mathcal{ {\mathcal F} }}

or, in other words, that the Lavrentiev term is equal to zero for any admissible function

u
∈

W

1
,
p

(

B

R

,

R

N

)

u\in {W}^{1,p}\left({B}_{R},{{\mathbb{R}}}^{N})

. We perform the approximations by means of functions preserving the values on the boundary of

B

R

{B}_{R}

.