bluuebunny/crossref_metadata_2025 huggingface dataset:
Ensino-aprendizagem de adição de frações via resolução de problemas
Authors: Carlos de Proença Marcelo , Akamine Caio
Published: September 2023

O objetivo desta experiência de caso educativo foi compreender a contribuição de um ensino da operação de adição de frações via resolução de problemas à aprendizagem dos alunos. Participaram 10 alunos brasileiros de uma turma do sexto ano do ensino fundamental de escola pública que fica em uma cidade do interior do estado do Paraná. Elaboramos uma proposta de ensino baseada na abordagem de Ensino-Aprendizagem de Matemática via Resolução de Problemas (eamvrp), estruturada em cinco ações de ensino, cujas aulas foram implementadas pelo Google Meet. De natureza qualitativa e interpretativa, a constituição dos dados se deu pelas resoluções dos alunos de uma situação de Matemática (possível problema), de anotações e gravações em áudio por meio do Google Meet. Os resultados mostraram que os alunos utilizaram uma única estratégia para resolver o problema. Porém, as duas formas de execução dessa estratégia foram incorretas, pois corresponderam a adicionar os denominadores diferentes das duas frações. Durante as três últimas ações do eamvrp, verificamos que os alunos participaram das aulas, sendo essa participação menor na ação de discussão das estratégias. Finalizando, podemos apontar que o eamvrp que fundamentou nossa prática de sala de aula contribuiu para que os alunos compreendessem e pudessem desenvolver a aprendizagem sobre o algoritmo da operação de adição de frações.
Representaciones sociales del cambio climático en futuros profesores de ciencias: una mirada desde la perspectiva freireana
Authors: Pérez Mesa María Rocío , Porras Contreras Yair Alexander
Published: September 2023

La consideración del cambio climático como un tema prioritario en las agendas internacionales, revela el escenario de crisis al que se enfrenta la humanidad, particularmente frente a la fragilidad de la vida y la incertidumbre frente al futuro del planeta. Este período de riesgo caracterizado por la globalización, el culto al hedonismo y la instalación de una racionalidad instrumental, ha incentivado un análisis sobre el papel de la educación en un mundo que ha incrementado las brechas económicas, sociales y culturales. El movimiento emancipatorio que se derivó de este panorama de crisis, tuvo en Paulo Freire a una de sus figuras centrales quien promovió una reflexión sobre el papel de la educación como praxis de la libertad, en tiempos de desigualdades sociales. El propósito del presente artículo consiste en reconocer las representaciones sociales sobre el cambio climático de un grupo de futuros profesores de Biología de la Universidad Pedagógica Nacional (upn), tomando como referente las ideas de Freire y el análisis prototípico y categorial, desde la perspectiva estructural. En los resultados prevalecen explicaciones que refrendan las causas antrópicas del cambio climático y la necesidad de fomentar una formación científica crítica para promover la transformación de la realidad ambiental y propiciar una reflexión sobre los procesos de formación de profesores de ciencias en el contexto de la crisis ambiental global. 
El propósito del presente artículo consiste en reconocer las representaciones sociales sobre el cambio climático de un grupo de futuros profesores de Biología de la Universidad Pedagógica Nacional (UPN), tomando como referente las ideas de Freire y el análisis prototípico y categorial, desde la perspectiva estructural. En los resultados prevalecen explicaciones que refrendan las causas antrópicas del cambio climático y la necesidad de fomentar una formación científica crítica para promover la transformación de la realidad ambiental y propiciar una reflexión sobre los procesos de formación de profesores de ciencias en el contexto de la crisis ambiental global.
Adaptación transcultural de una escala sobre conocimientos y actitudes de métodos anticonceptivos en adolescentes, del contexto cultural peruano al colombiano
Authors: Castro Carlos Alberto , Monterrosa-Blanco Angélica , Baquero Fernery , Melo Carlos , Losada-Rodríguez Liseth
Published: September 2023

Actualmente la educación sexual y reproductiva continúa siendo un tabú para algunas familias, lo que ha relegado a los colegios la responsabilidad de la formación integral en sexualidad. Esta formación incluye el componente de planificación familiar, el cual debe ser abordado oportunamente, teniendo en cuenta que en Colombia el inicio de las relaciones sexuales ocurre entre los 14 y 15 años aproximadamente. Una medición objetiva sobre deficiencias en cuanto a educación sexual y reproductiva en los adolescentes es posible obtenerse por medio de escalas con adecuadas características psicométricas. Por lo tanto, el objetivo de este artículo de investigación fue adaptar culturalmente una escala peruana validada con conocimientos y actitudes sobre métodos anticonceptivos en adolescentes. La metodología para llevar a cabo el proceso de adaptación inició con la autorización para el uso de la escala por parte de sus autores, posteriormente se realizó un primer grupo focal, se notificaron las modificaciones sugeridas, y al ser aceptadas se llevó a cabo un segundo grupo focal y se construyó la versión final en español colombiano. Diez estudiantes de educación media de dos colegios oficiales de Bogotá fueron incluidos, la mayoría de los cambios sugeridos fueron debidos a palabras desconocidas, dificultades en la redacción y problemas de interpretación. Finalmente, la escala modificada puede considerarse para el uso en Colombia, teniendo en cuenta que se realizó el proceso de adaptación transcultural en una población escolar. Se recalca la importancia de contar con la autorización de los autores de la escala e idealmente adaptar escalas validadas en poblaciones con características similares.
Analysis of Learning Styles of Students Enrolled in a Technical Course in Electromechanics with the Application of the Inventory of Kolb
Authors: Cadorin Nicolete Priscila , Herpich Fabrício , De Oliveira Júnior Eduardo Tocchetto , Machado da Silva Marta Adriana , Rockenbach Tarouco Liane Margarida
Published: September 2023

The present paper has as its main goal to identify the learning styles of students enrolled in technical high school concomitant to an electromechanical course, according to the precepts of David Kolb’s Experiential Learning Theory. This study is part of doctoral research that aims to investigate how different technological resources can be combined in an Experiential Learning Cycle and verify their benefits for teaching Physics. The results obtained made it possible for students to perform metacognition, and for teachers to understand how knowledge is appropriated by their students. The results will serve as a starting point for the elaboration of pedagogical strategies considering the Theory of Experiential Learning. The results also showed heterogeneity among the students since the four learning styles were identified among the 71 students surveyed (assimilating, converging, accommodating, and diverging). However, the Assimilating style stood out among students, representing 35.2%, which corroborates with Kolb’s studies, which demonstrate that individuals who choose courses involving the areas of Physical Sciences and Mathematics present predominantly this learning style.
Casos clínicos como estrategia didáctica para la enseñanza de bioquímica metabólica
Authors: Garzon Posse Fabian Andres , Enciso Galindo Sandra Isabel
Published: September 2023

El metabolismo de los principales tipos de biomoléculas, su regulación e integración es uno de los temas más complejos e importantes para la formación de los futuros médicos. La implementación de una estrategia de enseñanza aprendizaje basada en el análisis de casos clínicos, junto con sus correspondientes sesiones de argumentación, puede resultar válida para ayudar a los estudiantes a construir un conocimiento sólido e integrado de este importante tema. El presente artículo describe nuestra experiencia en el diseño e implementación de una estrategia de aprendizaje basada en casos clínicos, apoyada con sesiones periódicas de argumentación por parte de los estudiantes; Los estudiantes involucrados encontraron la experiencia satisfactoria, formativa y retadora, además tuvieron mejor desempeño en las evaluaciones desarrolladas respecto a estudiantes que no tuvieron relación con la estrategia.
Concepciones de las comunidades de prácticas interculturales
Authors: Orjuela-Osorio Claudia Patricia
Published: September 2023

El objetivo de este artículo de investigación es develar las concepciones del profesorado que integran una comunidad de practica intercultural a partir de las categorías: 1) origen y propósito de la comunidad; 2) relación entre conocimientos ecológicos tradicionales (CET) y conocimientos científicos escolares (CCE); 3) dinámica de la comunidad; y 4) actitudes de los profesores a través de un análisis hermenéutico apoyado en N-Vivo®. Teóricamente, se parte de las construcciones teóricas en torno a las comunidades de práctica, ampliando esta noción al contexto intercultural. La investigación es cualitativa con una perspectiva interpretativa. De este modo, los resultados indican que las categorías definidas a priori se encuentran interrelacionadas y permeadas por el origen cultural. A manera de reflexión final, en la actividad docente se logra identificar una tensión constructiva, entre los profesores de origen cultural diverso, que conlleva a un dialogo de saberes desde el contexto situado de la institución de Educación del Distrito Capital de Bogotá.
Una mirada sociocrítica a las razones para involucrarse en la clase de matemáticas
Authors: Hernández-Martín Harold Alberto
Published: September 2023

En este artículo de investigación son presentadas las razones actuales para involucrarse en la clase de matemáticas de una estudiante de grado undécimo, quien manifiesta que en sus años previos nunca le han gustado las clases de matemáticas. Para esto, se hace una contextualización de la estudiante, analizando e informando lo que sucedió con la clase de matemáticas; y su postura cuando esta persona es invitada a desarrollar un ambiente de modelación matemática desde la perspectiva sociocrítica. Este documento es parte de los resultados obtenidos en la tesis de maestría, la cual adopta una metodología crítica de investigación y un análisis de los discursos de los estudiantes que se involucraron en el ambiente creado, en cuyos resultados se encontró que los y las estudiantes pueden tener una diversidad de razones para involucrarse en la clase de matemáticas, en las cuales cobra importancia: los porvenires, el contexto y las intenciones de los estudiantes.
Los proyectos ambientales escolares (PRAE) y la educación ambiental comunitaria (EAC): encuentros y desencuentros en las orientaciones curriculares colombianas
Authors: Ojeda-González Gina Paola , Castro-Moreno Julio Alejandro
Published: September 2023

El presente artículo de investigación tiene como objetivo establecer los encuentros y desencuentros que se evidencian entre los lineamientos de los Proyectos Ambientales Escolares (PRAE) y la educación ambiental comunitaria (EAC) como campo del saber. Este es un producto que deriva parcialmente de un proyecto de tesis doctoral en curso, del cual se retoman resultados preliminares y se contrastan con los referentes teórico metodológicos de la EAC, en aras de identificar los puntos de convergencia o de distanciamiento en la forma en que se asume la ea en las fuentes consultadas y analizadas. En este sentido, la investigación realizada es de tipo documental, en donde su análisis parte del hecho de que los documentos curriculares colombianos no aluden explícitamente a la EAC, pero sugerimos que podrían estar en sintonía con esta perspectiva de la EA. En suma, este trabajo intentará responder a la pregunta ¿cuáles son los principales encuentros y desencuentros que se dan entre los PRAE y la EAC dentro del marco de las orientaciones curriculares colombianas?
Aproximaciones a una educación ambiental desde la complementariedad del ser y el ambiente
Authors: Tarapues-Quiroz Ana Carolina , Zuñiga-Escobar Orlando , Osorio-Marulanda Carlos Augusto
Published: September 2023

La crisis ambiental constituye un problema social que depende de la relación hombre-naturaleza-sociedad, relación asimétrica basada en el antropocentrismo (Aledo et al., 2002), en donde la naturaleza es vista con un valor instrumental (Brennan y Lo, 2016). A pesar de que la educación ambiental (EA) se plantea como parte de una solución a la problemática ambiental global, existe una brecha entre la EA y las acciones de la población, debido a que estas dependen del contexto, de las instituciones, de los procesos de educación formal e informal. A nivel escolar, esto involucra a las relaciones que se presentan entre los actores de toda la comunidad educativa. Teniendo en cuenta lo anterior, el presente artículo de reflexión tiene como objetivo analizar y plantear la necesidad de contextualizar las acciones pedagógicas en educación ambiental, desde un enfoque complementario del ser humano y el ambiente, que reconoce en la relación hombre-naturaleza sociedad, un sistema dinámico que se modifica, forma vínculos o los rompe, dependiendo de factores sociales, culturales, económicos, costumbres, hábitos y creencias de las poblaciones. De este modo, se propone reconocer la importancia de plantear estrategias de EA enfocadas en el individuo desde su cuidado y multidimensionalidad, su familia, su entorno social y natural; estrategias que sean contextualizadas y encaminadas a la trasformación de hábitos y costumbres de los miembros de la comunidad educativa en general.
Construyendo saberes y conocimientos agroecológicos como economía comunitaria en Silvia (Cauca, Colombia)
Authors: Zúñiga Meneses Shiomara Mileydi , Rebolledo-Acosta Sandra Patricia , Pérez Edier Humberto
Published: September 2023

El presente artículo revela la construcción de saberes y conocimientos agroecológicos como innovación para modelos de negocios en comunidades de Silvia (Cauca, Colombia). Este ejercicio fue generado a partir del uso de una estrategia basada en un rompecabezas sobre modelo de negocios. Como resultado de este proceso dialógico, se obtuvieron modelos de negocios centrados en el agroturismo, la transformación de lácteos, educando semillas para la vida Namuy Urekmeran Kusrenep Srenaway Asi Isua y gastronomía propia, Nachak. Además, se reconoce por parte de todos los participantes que la herramienta tecnológica es útil para la planificación de una economía comunitaria, pero el término de modelo de negocio no es utilizado en el territorio, sino como proceso de comercialización o economía comunitaria, con el ánimo de fortalecer la soberanía alimentaria. De esa manera, la estrategia permitió concertar los procesos de economía comunitaria que posibilitarían la utilidad a los subproductos e incorporarlos en nuevos procesos, con el fin de mejorar las condiciones de vida, teniendo presente la visión común e interés de construir una sociedad de la mano con la naturaleza.
Aportes a la conservación de la biodiversidad: el caso de las orquídeas en zonas de posconflicto
Authors: Flórez-Espinosa Gloria Macela , Loaiza-Campiño Iván Darío , Ruiz-Ortega Francisco Javier
Published: September 2023

Colombia es un país con alta biodiversidad, por lo que se constituye como país megadiverso; paradójicamente, es también un país con altos índices de violencia, donde las comunidades y la diversidad biológica quedaron atrapadas en medio del conflicto. En la actualidad, las denominadas zonas de posconflicto permiten a comunidades locales e investigadores acceder a territorios antes inaccesibles, allí es posible dar apertura a propuestas donde diferentes actores posibilitan acciones de conservación desde apuestas comunitarias, en este caso particular, frente a especies de orquídeas. La investigación es cualitativa desde los marcos de la investigación acción participativa (IAP). Metodológicamente se escucha a una comunidad de jóvenes guías ambientales del municipio de Murillo, Tolima, quienes requieren elementos formativos para su quehacer educativo y de conservación; además, se desarrolla un proceso formativo participativo para el estudio y conocimiento de especies de orquídeas de la zona. Como resultado está la experiencia de conocimiento comunitario participativo y la generación de un material educativo para su labor de guianza ambiental como alternativa frente a la situación de posconflicto.
A formação inicial de professores de Geografia em Portugal. O desafio da qualidade
Authors: Claudino Sergio
Published: September 2023

No século XIX, não havia formação superior em Geografia e aguardava-se que o professor da disciplina tivesse os melhores conhecimentos geográficos possíveis para lecionar este saber disciplinar emergente. No começo do século seguinte, institui-se, finalmente, a formação inicial de docentes da disciplina, mas o mal-estar da academia perante a mesma é evidente. Em 1930, a mesma formação é remetida para as escolas, onde é tutorada por docentes experientes; vai sendo progressivamente alargada a mais escolas e adaptada, com a expansão do sistema de ensino. A partir de 1987, por imposição das autoridades educativas, a formação inicial regressa, de novo, às universidades, acabando por se impor o modelo da licenciatura em ensino, de formação em 5 anos, o último numa escola. Em 2007, são criados os mestrados em ensino e o governo integra a formação de docentes de Geografia e História (3.º ciclo do Ensino Básico e Ensino Secundário – 12-15 anos e 15-18 anos) num único curso, o que apontava para a integração destas disciplinas, desvalorizando as ciências sociais. Numa luta inédita, realiza-se uma petição pública ao parlamento português e é criado, em 2014, o Mestrado em Ensino de Geografia (em paralelo com o de História), a que acedem licenciados com, pelo menos, dois anos de formação em Geografia. Neste longo percurso, dignificou-se a formaçao inicial, perduram os desafios de uma maior investigação em Didática da Geografia.
Potassium Carbonate as Catalyst for Transesterification of Cellulose in TBAF/DMSO Solvent System Instead of KH2PO4 and Na2HPO4 Salt Mixture
Authors: ERİŞİR Emir , GÜMÜŞKAYA Esat
Published: September 2023

Aim of study: This study's goal is to evaluate potassium carbonate as a catalyst for the transesterification of cellulose dissolved in TBAF/DMSO and to identify the optimal reaction conditions.
Material and methods: First, a solvent system consisting of 33 g TBAF and 165 g DMSO was prepared for 10 g dissolving pulp in this solvent system for one hour, then the cellulose solution was generated. The catalysts were added to the solution. At reaction temperature, vinyl acetate was added to the solution and the 70-h transesterification process was started. The product was precipitated in ethyl alcohol and washed with water on a sieve, and then dried at room temperature. The effects of changes in catalyst ratio and temperature on bond acetyl groups were investigated by heterogeneous saponification method, FTIR, XRD, DSC, viscosity and solubility test.
Main results: The samples' DS values ranged from 1.39 to 2.37 and using phosphate salt mixture catalyst and increasing the ratio of catalyst increased the DS. FTIR and XRD data revealed that acetylation was effective. DSC thermograms showed a minor endotherm at 283.3-291.2°C, and it was identified as the melting point. With potassium carbonate, the viscosity and the solubility of the products increased.
Highlights: Cellulose in TBAF/DMSO could be acetylated using potassium carbonate as the catalyst. Potassium carbonate's catalyst activity was weak on DS.
Women's Narratives and Political Problems in Indonesian History Textbooks
Authors: Kurniawan Ganda Febri
Published: September 2023

A review of historical learning in developing gender justice can start from basic questions about the construction of women's narratives in textbooks. This study aims to investigate women's narratives and their political problems in Indonesian history textbooks. This research was conducted with descriptive qualitative method. Sources of data come from textbooks published by Puskurbuk and Erlangga. Data analysis used Critical Discourse Analysis (CDA). The results of this study indicate that the distribution of women based on regional origin and time is quite problematic, women are characterized as weak human beings. Women's role are categorized into six; women as wives, aristocratic relatives, parents or mothers, warriors, leaders, and politicians. Women's narratives are shaped by patriarchal power and by the impetus of anti-feminist ideology. Thus, the meaning of women's narratives is not very visible. A historical narrative with a feminist perspective is needed to create a more ideal Indonesian history to be taught in schools.
Dominants of the scientific and linguistic world of Anatolii Moisiienko
Authors:   Nizhyn State University named after Mykola Gogol, Boyko Nadiya
Published: September 2023

The analysis of scientific & linguistics dominants of A. Moisiienko revealed the synthesis of the fundamental knowledge of a linguist and literary critic, the dynamics of emotions, and the expression of the poet’s evaluations aimed at updating the national scientific and artistic paradigms. The linguist managed to combine several hypostases, appearing before the reader as a scrupulous linguist-researcher of the apperceptive system of Shevchenko’s poem, the worlds of symbols and the silent word, the world of poetics and the dynamics of text structures, the world of the intertextuality of the poetic text; and as an obsessed literary critic who, raising several extremely relevant problems of the modern scientific study of poetic idiostyles, specific features of individual authorial verse genres in the system of individual artistic texts, focuses on European intellectualism and modernism; and as an inspired poet, in whose poems the Ukrainian poetic language appears as a world of linguistic and aesthetic signs of national culture. The scientific texts of A. Moisiienko were studied from the standpoint of anthropocentrism and textocentrism, considering the structure of textual categories, means of their objectification, and factors of actualization of the author’s dominant constants. The multi-aspect studies of A. Moisiienko’s poetic linguistics are commented on, which gives an idea of the specificity of the figurative idiopoetic system, and its dominant features, which distinguish the author's language creation against the all-Ukrainian background and among traditional samples of national poetics. It was found that the dominant features of the author’s scientific linguistic world include the linguistic stylistic interpretation of the apperceptive system of Shevchenko’s poem, the artistic understanding of the linguistic worlds of symbol and silent word, the world of poetics and the dynamics of text structures, the world of the intertextuality of a poetic text.
OTİZM SPEKTRUM BOZUKLUĞU OLAN BİREY ANNELERİNİN GÖZÜNDEN COVID-19 PANDEMİSİ
Authors: Demirtaş Özlem , Şahin Eren , Öz Ahmet Onur
Published: September 2023

Bu araştırma, otizm spektrum bozukluğu (OSB) olan çocuğa sahip annelerin pandemi sürecine uyum sağlama süreçlerini ve bu süreçteki deneyimlerini; bu deneyimlerden hareketle de gereksinimlerini ve yaşadıkları zorlukları anlamayı amaçlamaktadır. Çorum ilinde bir sivil toplum örgütüne üye 18 annenin katıldığı bu çalışma, fenomenoloji (olgubilim) deseninde yapılmış nitel bir çalışmadır. Veriler, araştırmacılar tarafından hazırlanmış Kişisel Bilgi Formu ve Yarı-yapılandırılmış Görüşme formu aracılığıyla yüz yüze görüşmeler ile toplanmıştır. Toplanan verilerin analizi içerik analizi aracılığı ile gerçekleştirilmiştir. Araştırma sonuçları, OSB olan çocukların uzaktan eğitim süreçlerinde yoğun güçlükler yaşadıklarını ve dikkat sürelerinin bu dönem içerisinde azaldığını göstermiştir. Ayrıca bu dönemde annelerin kendilerine zaman ayırmakta sorunlar yaşadıkları ve kendilerinin sosyal bir desteğe ihtiyaç duydukları belirlenmiştir.
EXAMINATION OF THE CORPORATE IMAGE OF FURNITURE MANUFACTURING BUSINESSES FROM THE PERSPECTIVE OF COMMERCIAL FILMS
Authors: Kırklıkçı Ahmet Bora
Published: September 2023

Corporate image represents the positive or negative perceptions of internal stakeholders and external stakeholders about the company. Corporate commercials have an important place in creating corporate image. Furniture manufacturing businesses need to have a good corporate image in order to compete in the global market. In this regard, the aim of this study is to examine the corporate images of furniture manufacturer businesses from the perspective of commercial films through personification analogies. The sample of the research consisted of corporate commercial films of 10 furniture manufacturers with dealership system in Turkey. The Corporate Character Scale developed by Davies et al. (2004), which measures the image evaluations of both internal and external stakeholders through personification, was used in the study. The images generally used in the commercial films of furniture manufacturing businesses have similar themes such as “Agreeableness”, “Chic” and “Enterprise”. In this context, it can be said that there is no different and remarkable image work in the context of commercial films among furniture manufacturing businesses.
Russia in Russian Language Textbooks for Americans: Lexical Aspect
Authors: Zenkevich I.V.
Published: September 2023

The article is devoted to the study of the lexis of textbooks of Russian as a foreign language, created by American authors for American students. This lexis is potentially able to participate in creating the image of Russia. Using the methods of continuous sampling, contextual and quantitative analysis, the author of the article examines the vocabulary (lexis) used by the authors of the textbooks to describe the leisure of Russians, their food and meal times to analyze its potential participation in shaping the image of our country in American students. The article shows how at the level of a textbook of Russian as a foreign language a stereotypical image of our country is created in the United States, the image built on stable clichéd ideas about Russia: after analyzing the vocabulary of 50 Russian language textbooks created in the United States from the beginning of the 20th century to the present, the most frequent lexemes were identified, such as «vodka», «beer», «tea», «shchi», «borscht», «caviar», «samovar», «drink vodka».
Melatonin as a Potential Therapeutic Tool in Allergic Rhinitis Induced by House-Dust Mite
Authors: Şafak Ayşe Sezim , Taşlı Pakize Neslihan , Avşar Abdik Ezgi , Abdik Hüseyin , Şahin Fikrettin
Published: September 2023

Melatonin is known as an important regulator of circadian rhythm in humans. In the literature, there are no studies evaluating the efficacy of melatonin in the management of allergic rhinitis (AR) or nasal polyps (Np). Np tissue was taken from nasal cavity and mucosal tissue (Mu) was taken from the nasal septal area. Melatonin (25-200nM) and Mite Allergen (2.5-12.5%) were prepared in complete media. Cell viability, apoptosis, intracellular reactive oxygen species production and gene expression levels were determined. Our results showed that there is no toxic effect of Melatonin, Mite and their combination which was given to Np-MSCs and Mu-MSCs. Melatonin significantly reduced reactive oxygen species levels in both mite-treated Np-MSCs and Mu-MSCs. Indoleamine 2,3-dioxygenase level was significantly decreased in melatonin-treated cells. Cyclooxygenase-1 level was significantly decreased in melatonin-treated healthy and allergic Np-MSCs while there was no significant difference in 100 and 150nM Melatonin-treated Mu-MSCs. Interestingly, 50nM Melatonin significantly increased Cyclooxygenase-1 level in Mu-MSCs. 50, 100 and 150nm Melatonin significantly decreased Interleukin-6 level in Mite-treated Np-MSCs. In addition, 100 and 150nM Melatonin significantly decreased Interleukin-6 level in Mite-treated Mu-MSCs. Melatonin has well-established anti-oxidant and anti-neoplastic activity, could be a promising therapeutic agent in the treatment of AR and nasal polyposis.
Investigation of Adsorption Isotherm Models for Interaction of P(AAm-ClAETA) and Carminic Acid, and Theoretical Approaches
Authors: Işıkver Yasemin , Işıkver Ali
Published: September 2023

In this study, the adsorption isotherm models for the sorption of carminic acid on P(AAm-ClAETA) hydrogels are explained by experimental and theoretical studies. The crosslinked hydrogels with ethylene glycol dimethacrylate were prepared by radical addition reaction of acrylamide (AAm) and 2-(acryloyloxy)ethyl trimethylammonium chloride (ClAETA) monomers in an aqueous solution. The spectral and morphological analyses of P(AAm-ClAETA) hydrogels were performed by FTIR/ATR and SEM, respectively. The adsorbed amounts of carminic acid on P(AAm-ClAETA) hydrogels were evaluated by Giles, Langmuir, and Freundlich adsorption isotherm models. Langmuir parameters were calculated for the adsorption of the dye on the hydrogels according to the L-type Giles isotherm. In addition, it was determined that its adsorption was appropriate from the RL values calculated for 500 mg L-1 carminic acid concentration. In addition, molecular electrostatic potential (MEP) mapping was performed to predict the reactive sites of P(AAm-ClAETA) hydrogels and carminic acid. The results showed that the theoretical and experimental data of the hydrogels were in agreement with each other. As a result, it can be said that P(AAm-ClAETA) hydrogels are suitable for the removal of anionic dyes such as carminic acid from aqueous solutions.
Cross-Section Calculations of Medical Radioisotope 64Cu via some Proton, Neutron and Deuteron Reactions
Authors: Gülümser Tuğçe , Kaplan Abdullah
Published: September 2023

The Copper-64 radioisotope, whose academic research continues on diagnostic and therapeutic use, was examined in this study. 64Cu radioisotope is unique among other Cu isotopes for medical usage due to its low positron energy, appropriate half-life, and short tissue penetration. In cases where experimental data are missing, cross-section calculations can be used, and the existence of the cross-section data may provide various advantages in managing time, cost, and efficiency. In this context, investigated detailed cross-section calculations of the 64Cu isotope. To this end, cross-sections acquired from various calculation codes were compared with the literature, and alternative production routes were investigated. Using the nuclear reaction codes TALYS and EMPIRE, cross-section data of the 64Cu isotope were obtained from the 64Ni(p,n)64Cu, 65Cu(p,n+p)64Cu, 68Zn(p,n+α)64Cu, 65Cu(n,2n)64Cu, 64Ni(d,2n)64Cu, and 63Cu(d,p)64Cu reactions with the equilibrium and pre-equilibrium models. The results were compared with the available literature data from the EXFOR database.
Investigation of Antimicrobial and Antioxidant Activities of some Lichens
Authors: Us Dilek , Kara Ayşe , Ünal Elif , Akıncıoğlu Hülya , Aslan Ali , Taşkın Mesut
Published: September 2023

This study investigated the antimicrobial and antioxidant properties of methanol extracts from five lichen species: Polycauliona candelaria (Syn. Xanthoria candelaria), Nephromopsis chlorophylla (Syn. Cetraria chlorophylla), Circinaria calcarea (Syn. Aspicilia calcarea), Bryoria capillaris (Syn. Alectoria cana), and Peltigera canina (Syn. Dermatodea canina). Antimicrobial activities were determined using the agar disc diffusion method, while minimal inhibitory concentration (MIC) values were determined using the micro-well dilution method. Among the lichen species, methanol extract of Circinaria calcarea exhibited the highest antimicrobial activity, with a 15 mm zone of inhibition against Escherichia coli and Bacillus cereus. It also demonstrated the lowest MIC value (31.25 μg/mL) against Bacillus cereus, Bacillus subtilis, Clostridium perfringens and Escherichia coli were the most sensitive microorganisms to lichens. Various antioxidant determination methods were employed to assess the antioxidant activities of the lichens, including ferric ion (Fe+3) reduction capacity, cupric ion (Cu+2) reduction capacity, ferric ion reducing antioxidant power (FRAP), DPPH radical scavenging activity, DMPD radical scavenging activity and metal chelating activity using the bipyridyl reagent. All lichens exhibited excellent antioxidant activity, particularly in metal chelating activity using the bipyridyl reagent. Peltigera canina demonstrated the highest antioxidant activity among the studied lichen species across most of the applied method.
On Intra-Group Allocative Efficiency of Resources in Industrial Business Models
Authors:   Ural State Economic University, Orekhova Svetlana V. , Butakov Ivan A. ,   Ural State Economic University
Published: September 2023

The main reason for the creation of industrial firms with complex hierarchies is the transaction and optimization of resources, and the scaling of specific investments. The allocative efficiency of the resource portfolio determines the or-ganizational and economic results of the industrial business models cooperation. The article is devoted to modeling the impact of intra-group allocation of produc-tion assets on the revenue and profitability of sales for group of industrial enter-prises. We also construct scenarios for optimizing its resource portfolio. The me-thodologically study is based on neo-institutional economic theories (contract theory, the agency problem theory) and the macroeconomic analysis. The methods are econometric and scenario modeling. The information base of the study was da-ta on economic activity for eight enterprises from UMK-Steel LTD of the multi-functional holding «Ural Mining and Metallurgical Company». We select a re-gression analysis toolkit that allows for a comprehensive and relevant measure-ment of the impact of various types of resources on the efficiency in the group of industrial enterprises. The results of empirical testing revealed the relationship be-tween the structure of fixed assets, as well as labor resources, and the indicators of revenue and profitability of sales in UMK-Steel LTD. The distribution of material resources between the enterprises of the group has practically no effect on its per-formance indicators. Further, we identify the base scenario for allocation of the resource portfolio. The proposed methodology contributes to the development of approaches to the system analysis of intragroup allocative efficiency in complex hierarchical industrial business models.
Complex Crustal Deformation Controlled by the 3D Geometry of the Chile Subduction Zone
Authors: Herrera Marco T. , Crempien Jorge G. F. , Cembrano José
Published: September 2023

The Chilean subduction zone hosts Mw>8 earthquakes, which could trigger earthquakes on crustal faults located along the plate margin. Using synthetic earthquakes from a quasi-dynamic boundary element method model, we obtain traction fields and perform a slip tendency analysis to obtain synthetic faults, which we compare with existing potentially seismogenic crustal faults. With our results, we find geometric patterns of the highest slip tendency planes with deformations induced by synthetic subduction events, such that north of the rupture area of each event, correlate with normal N20°W–50°W/N60°SW fault planes, and to the south, correlate with normal N30°E–80°E/N60°NW faults planes. These observations agree with observed fault traces in central and northern Chile, and past observations of crustal fault reactivation.
GNSS-Constrained Rupture Kinematics of the 2022 Mw 6.7 Luding, China, Earthquake: Directivity Pulse during the Asymmetrical Bilateral Rupture
Authors: Liu Gang , Zhao Bin , Xu Rui , Qiao Xuejun , Liu Chengli , Li Yu , Lin Mu , Zhao Xinyu , Nie Zhaosheng , Xiong Wei , Fang Rongxin , Wang Qi
Published: September 2023

Impulse motion characterized by a large amplitude in the fault-normal direction can be observed at near-fault strong motion sites during strike-slip earthquakes. The large pulse, which always causes high intensity and stronger damage to structures close to faults, is usually attributed to the directivity effect of rupture propagating along strike and the proximity to the fault. We present an analysis of such a large directivity pulse captured by the near-fault high-rate Global Navigation Satellite System (GNSS) during the 2022 Mw 6.7 Luding, China, earthquake—the largest event ever observed by space geodesy on the seismically active Xianshuihe fault in the eastern Tibetan Plateau. We invert the displacement waveforms and offsets derived from the continuous and campaign GNSS for the rupture kinematics. The inferred slip model reveals a rupture zone of 30 km in length above 15 km depth along the Moxi segment, yielding a seismic moment of 1.1×1019  N·m and a source duration of 13 s. The high-rate GNSS (hrGNSS) waveforms suggest an asymmetric bilateral rupture: most slips with long rise time are concentrated on the southern part of the ruptured fault, whereas a short-duration pulse-like slip rate with low final slip propagates during the northward rupture. We found that the directivity pulse observed by the nearest hrGNSS site is controlled primarily by the sharp pulse-like slip rate and rapid rupture velocity approximating the local S-wave velocity. Along with additional local amplification, this large directivity pulse may be responsible for the heavy damage in Moxi town close to the northern ruptured fault.
SimplETAS: A Benchmark Earthquake Forecasting Model Suitable for Operational Purposes and Seismic Hazard Analysis
Authors: Mancini Simone , Marzocchi Warner
Published: September 2023

The epidemic-type aftershock sequence (ETAS) model is the most effective mathematical description of the short-term space–time earthquake clustering. However, the use of such a model is sometimes hampered by the difficulty in estimating the high number of its unknown correlated parameters. Moreover, the most recent ETAS formulations introduce the space–time variability of some parameters that makes their estimation even more arduous. Here, we investigate the model in an opposite perspective, looking for the simplest ETAS parameterization that can satisfactorily describes the earthquake clustering in crustal tectonic regions; we named this model simplETAS. We show that simplETAS calibrated with the Italian seismicity of the last decades adequately describes the space–time occurrence of the out-of-sample largest earthquakes in the instrumental and historical catalog, confirming the validity of the assumptions made to build the model. Owing to its simplicity, simplETAS is easily applicable in most regions, and it has some important properties that are worth being remarked. First, simplETAS can be used as a benchmark model to assess the relative predictive skill of more complex earthquake forecasts. Second, it may be used for operational earthquake forecasting purposes in regions with limited earthquake catalogs. Third, it provides a straightforward, flexible, and effective approach to generate synthetic earthquake catalogs of variable length to be implemented in seismic hazard and risk analysis, overcoming all the declustering-related problems and the controversial Poisson assumption.
Study on relationship between intraocular pressure and hyperthyroidism
Authors: Fatima Samra Wahaj , Gitanjali M , Chowdary Sowmya , Sultana Shaik Sohni
Published: September 2023

Thyroid-associated ophthalmopathy (TAO) represents a persistent autoimmune inflammatory condition impacting various ocular components, including orbital fat (OF), extraocular muscles (EOMs), the eyeball, and associated eye structures. This disorder is closely associated with autoimmune thyroid pathology. A body of research has indicated an elevated susceptibility to heightened intraocular pressure (IOP) and glaucoma among individuals with thyroid-related ailments. Nonetheless, certain studies have expressed reservations about affirming these conclusions. Furthermore, there exists a diversity of viewpoints regarding the optimal approaches for managing elevated IOP in TAO patients afflicted with ocular hypertension

A prospective research investigation was undertaken within the Department of Ophthalmology at a Tertiary Care Teaching Hospital, spanning a duration of 12 months. The techniques employed for the diagnosis of open-angle glaucoma (OAG) have been comprehensively outlined. Goldmann applanation tonometry was utilized to determine intraocular pressure (IOP). Employing a Zeiss FF3 fundus camera, a series of dilated stereoscopic 300-color retinal and optic disc images were captured. The evaluation of optic disc photographs was conducted by one of two evaluators, both of whom remained masked to the study's particulars, employing a customized protocol. In order to ascertain optic disc dimensions, adjustments for camera magnification were performed, accounting for the spherical equivalent refraction of each individual eye.

A total of 90 patients were examined. Of the 90 cases, male preponderance was noted. Among 90 patients, 20 (22.2%) were hyperthyroid, 61 (67.8%) were hypothyroid, and 9 (10%) patients were euthyroid. In our study shows the frequency of different symptoms among the study group. Most of the patients came with complaint itching of (27.8%). The second most common symptom was foreign body sensation (21.1%). In this study shows the different types of signs among these two groups. In hyperthyroid lid, retraction was more common (12%). In hypothyroid lid, edema was more common (18.5%). Frequency of dry eye syndrome in patients with TD was present; 29 (26.4%) patients had dry eye disease. Among 90 patients, proptosis was present in 4 patients had proptosis. Most of the patients were myopic.

Our results imply the potential link between intraocular pressure (IOP) and thyroid-related disorders, particularly in individuals undergoing thyroxine treatment. Conducting further comprehensive investigations to explore and substantiate this prospective association is advisable.
“Not a Major or Complicated Task”: Activating Dugnad under COVID-19 and the Imagination of Equality in the Norwegian Welfare State
Authors: Gross Lena
Published: September 2023

In Norway, the institution of the welfare state and trust in the government defined the country’s approach to tackling the pandemic. In particular, the government’s strategy to activate the cultural concept of dugnad (voluntary, reciprocal communal work), which relies on an equal standing of all participants, plays into the national imaginary of an egalitarian and just society. However, like in other countries, COVID-19 has put the spotlight on inequalities in access to healthcare, information, adequate housing, and more. Investigating infection measures and their indirect consequences can clarify which values and people are given priority in a crisis and who is seen as belonging to Norwegian society.
This article points to the pandemic as a magnifying glass revealing the lack of enough emergency care nurses, physicians, equipment, hospital and psychiatry beds, adequate health literacy efforts and more. Moreover, it magnifies heteronormative and Eurocentric ideas of who makes up a family, compounded by nationalistic notions of who is Norwegian enough to belong.
By activating dugnad, politicians transferred their responsibilities as elected leaders to individual citizens, leading to the growth of socioeconomic inequalities and health disparities during the pandemic while also resulting in the poor communication of the long-term and indirect costs of pandemic measures.
Changing the Narrative: Settler Colonialism, Food and the Columbia River Treaty
Authors: Wagner John
Published: September 2023

While the written terms of the Columbia River Treaty appear to justify the often-heard claim that it is all about hydropower and flood control, a full account of its history reveals its critical importance to US agriculture and close relationship to early phases of colonization and development in the Upper Columbia River Basin. In this paper I argue that the Treaty is best understood as the third phase in the last large-scale government-sponsored settler colonialism project in North America, a project that began with the construction of the Grand Coulee Dam in the 1930s. I further argue that the dominant narrative that informs current efforts by Canada and the US to revise the treaty does not fully recognize the settler colonial structure of the original treaty or its critical impact on both Indigenous and settler food systems throughout the basin. I begin with a description of the history of the treaty, in order to demonstrate its continuity with earlier phases of settler colonialism, then focus on its impact on food systems. I conclude with an assessment of the ongoing Canada/US treaty review and renegotiation process that began in 2011 with suggestions for how the process could be brought into better alignment with the United Nations Declaration on the Rights of Indigenous Peoples and the Calls to Action of the Truth and Reconciliation Commission of Canada.
Quand l’expérience « spirituelle » s’éprouve par et dans le corps : Pédagogie somatique et transformation identitaire dans le Morbihan
Authors: Dansac Yael
Published: September 2023

Dans le Morbihan, un département français situé en Bretagne, les pratiques qui visent à la découverte de « soi » par l’intermédiaire des mégalithes locaux sont nombreuses. Les dispositifs que ces pratiques fournissent sont censés permettre au pratiquant de développer de nouvelles relations entre « soi et soi » et entre « soi et l’Autre », en utilisant son corps et ses sens comme des facteurs essentiels à une transformation identitaire. Au sein de ces pratiques, les acteurs sont invités à s’investir dans un parcours d’apprentissage sensoriel et à cultiver leur attention corporelle en se concentrant sur leur corps et leurs sensations, au moment de s’approcher des mégalithes et de les toucher. Dans cet article, j’analyse les processus d’apprentissage somatique et de transformation identitaire mis en place au sein de ces pratiques. Plus précisément, je m’arrête sur les trois éléments qui rendent compte de l’efficacité des pratiques et qui construisent le vécu des acteurs : l’apprentissage progressif d’un langage sensoriel, l’interprétation des imaginaires somatiques et l’exécution des techniques corporelles. Mes réflexions théorisées sur ces éléments mettent en exergue les mécanismes qui font de ces pratiques des espaces-temps où les expériences de nature « spirituelle » se manifestent comme des expériences somatiques.
« QAnon pastel » ou la surprenante convergence entre conspirationnisme politique et spiritualités New Age : Cyber-ethnographie d’activistes francophones
Authors: Farahmand Manéli , Piraud Mischa , Rouiller Sybille
Published: September 2023

Les discours de QAnon et les spiritualités New Age font l’objet d’articulations renouvelées. Une recherche qualitative débutée en 2020 par le Centre intercantonal d’information sur les croyances (CIC) à Genève (Suisse) propose, à travers une « cyber-ethnographie », une analyse systématique de plus de 60 vidéos en ligne et d’espaces interactifs relayant des discours QAnon, entre 2020 et 2023. L’étude soulève les spécificités de la réception suisse des thèses de QAnon en contexte pandémique (COVID-19), ainsi que les formes d’hybridation qui en émanent. S’appuyant sur la notion de conspiritualité, l’article montre que dans le contexte de la crise de COVID-19, les théories de QAnon, initialement cantonnées à la sphère politique américaine, ont amplifié leur audience bien au-delà du public initial. On observe ainsi une politisation de certains acteurs et actrices proches du milieu holistique, et inversement, à une édulcoration des thèses QAnon au sein d’une narration millénariste de type New Age. Cette rencontre a priori inattendue entre QAnon et le milieu holistico-spirituel suisse est finalement discutée à travers trois axes: 1) le lien historique entre les religiosités parallèles et la droite radicale ; 2) le tournant individualiste radical au sein des réseaux New Age actuels; et 3) l’idéologie naturaliste propre au milieu holistique.