bluuebunny/crossref_metadata_2025 huggingface dataset:
Children consider what others didn’t know as well as what they couldn’t do when judging their actions
Authors: Gautam Shalini , Zhang Jingchen , McAuliffe Katherine
Published: November 2024

From at least age 6 children consider what someone could have done when judging their actions. Children are more lenient in their judgments of others’ actions if there was no other choice but to cause a bad outcome, as compared to when there was another choice available that would have avoided a bad outcome. Here we explore if children also consider knowledge of one’s options when judging actions. That is, are children equally lenient if someone makes a bad choice because they didn’t know another option was available? We tested children in China (N = 133), India (N = 133) and the USA (N = 146) aged between 5 and 10. We told children stories about three characters who either 1) had a choice and caused a bad outcome; 2) had no choice but to cause a bad outcome and 3) do not know they had a choice, and caused a bad outcome. Broadly, we find that children across all countries are more lenient of bad actions when characters in the story did not know they had another choice available. Overall, these findings provide evidence that children consider what others didn’t know, as well as what they couldn’t do, when judging their actions.
Metacognitive sensitivity: the key to calibrating trust and optimal decision-making with AI
Authors: Lee DoYeon , Pruitt Joseph , Zhou Tianyu , Du Jing , Odegaard Brian
Published: November 2024

Knowing when to trust and incorporate the advice from artificially intelligent (AI) systems is of increasing importance in the modern world. Research indicates that when AI provides confidence ratings, human users often correspondingly increase their trust in such judgments, but these increases in trust can occur even when AI fails to provide accurate information on a given task. In this piece, we argue that measures of metacognitive sensitivity provided by AI systems will likely play a critical role in (1) helping individuals to calibrate their level of trust in these systems, and (2) optimally incorporate advice from AI into human-AI hybrid decision- making. We draw upon a seminal finding in the perceptual decision-making literature which demonstrates the importance of metacognitive ratings for optimal joint decisions and outline a framework to test how different types of information provided by AI systems can guide decision- making.
Energy Resonance Coupling in Linguistics: A Perspective on the Origin of Characters through Metasurface Technology
Authors: Zhao Xinmin , Zhang Feng
Published: November 2024

Character patterns have been regarded as mystical mediums capable of influencing the surrounding energy fields since ancient times, often used for altering environmental energy or protecting individuals. Modern metasurfaces, on the other hand, are two-dimensional structures designed with nanometer or micrometer precision to achieve highly controlled manipulation of electromagnetic waves. This paper aims to explore the connection between character patterns and metasurfaces in aspects such as energy regulation, information encoding, and cultural symbolism, while further analyzing their multidimensional impact on technology, culture, ethics, and practical applications. By comparing the historical background, cultural significance of character patterns, and the physical principles of modern metasurfaces, the paper reveals commonalities between the two in energy resonance, information transmission, and geometric symmetry. Furthermore, the paper delves into the role of character patterns in psychology and socio-culture, as well as their inspirational significance for metasurface technology design. Finally, the paper discusses the ethical and socio-cultural adaptability of metasurface technology, providing valuable insights for future scientific research and practical applications.
Regional Inequality in Peru: Causes, Effects, and Strategies for Equitable Development
Authors: Jaramillo Lizana Jet Li Jorkaef
Published: November 2024

Regional inequality in Peru represents one of the most significant challenges toachieving sustainable economic growth and social cohesion. This paper exploresthe historical, economic, social, and institutional causes of regional disparities,examining how geography and resource distribution have led to uneven development across the country. Drawing on the historical legacy of colonialism,the analysis reveals how extractive economic models and centralized governancehave perpetuated inequality, disproportionately affecting rural and indigenousregions such as the Andean highlands and the Amazon basin.The study assesses the economic effects of regional inequality, including itsimpact on national growth, labor market inefficiencies, and vulnerability to external shocks. Social effects are examined in terms of reduced social cohesion,internal migration, and increased social conflicts, particularly in areas rich innatural resources. The paper also evaluates the implications for human development, focusing on gaps in education, healthcare, and quality of life thatperpetuate cycles of poverty and limit opportunities for upward mobility.To address these disparities, the paper proposes several strategies aimedat promoting inclusive development. These include investment in sustainableinfrastructure to improve connectivity and access to resources, economic diversification to reduce dependence on volatile extractive sectors, strengthening ofeducation and healthcare services to bridge social gaps, and enhancing regionalgovernance to optimize decentralization and resource management.The paper concludes by emphasizing the importance of reducing regionalinequality for the sustainable development of Peru. It argues that equitabledevelopment is essential for fostering national unity, economic resilience, andsocial well-being. Future research directions are also identified, including theimpact of climate change on regional inequality, the role of digital technologyin bridging gaps, and the potential for community-based approaches to resourcemanagement. By understanding and addressing the root causes of inequality,Peru can lay the foundation for a more inclusive and prosperous future for allits citizens.
Coping Strategies as Mediators in Promoting Post-Traumatic Growth in Indian Young Adults’ Experiences of Sexual Harassment
Authors: Ghosh Simantini , Purohit Ashlesha
Published: November 2024

Sexual harassment is highly prevalent and poses significant mental health concerns and decreased academic or job-related functioning. The overarching goal of the project is to study post-traumatic growth and the role of coping strategies in the context of sexual harassment experienced by Indian young adults. This study investigates the mediating role of coping strategies and specifically dysfunctional/avoidant coping on the positive effects of self-compassion and social support on post-traumatic growth. The study is quantitative and employs a self-report online questionnaire. The sample consisted of 264 Indian young adults who were recruited via convenience sampling and satisfied the screening protocol of this study (n=264). With a cross-sectional design, participants completed validated measures of self-compassion, social support, coping, and post-traumatic growth. Correlation matrix, hierarchical regression, and mediation analysis were used to examine the role of coping strategies on post traumatic growth. The analyses revealed that self-compassion and social support were positively correlated with post-traumatic growth and accounted for 31.2% of its variance. Coping and dysfunctional/avoidant coping accounted for an additional 16.4% of the variance in post-traumatic growth [ΔR² = 0.164, F(2, 259)= 41.0, p<0.001], and combined the model accounted for 47.3% of the variance in post-traumatic growth. The mediation analyses show that the relationship between self-compassion and post-traumatic growth is partially mediated by dysfunctional/avoidant coping [ꞵ=0.17441, z=4.293, p<0.001] and the relationship between social support and post-traumatic growth is fully mediated by coping [ꞵ=0.24564, z=5.031, p<0.001]. The study provides insight into the pathway by which post-traumatic growth is facilitated by protective factors, especially in the context of Indian young adults’ experiences of sexual harassment. Therefore, it contributes to existing theory and has important implications for practice.
Dietary intake, diet quality and nutritional status of homeless children: A cross-sectional study
Authors:   Department of Food Science, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia, Yong Kar Wen , Ali Asma’ ,   Department of Food Science, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia, Mohd Yusof Hayati ,   Department of Food Science, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia, Yusof Aziz ,   Department of Food Science, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia, Tan Michelle Mun Chieng ,   Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK,   Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK,   Global Public Health and South East Asia Community Observatory (SEACO), Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Sunway Campus, Selangor, Malaysia.
Published: November 2024

Introduction: The increasing number of homeless children is concerning. This study aimed to assess the dietary intake, diet quality, and nutritional status of homeless children in Klang Valley, as well as the relationship between diet quality and nutritional status. Methods: Approximately 120 homeless children aged 7 to 12 years from four locations in Klang Valley were enrolled. Their dietary intake and nutritional status were assessed using a two-day 24-hour dietary recall and body mass index-for-age, respectively. The Healthy Eating Index (HEI) was used to examine diet quality. Results: Prevalence of normal weight respondents was 58.3% (mean±SD: -0.79±1.80), with 25.0% classified as moderately and severely thin. Mean energy intake was significantly lower than recommended nutrient intakes (RNI) (p<0.050), while protein intake was higher (p<0.050). Calcium and zinc intakes were also significantly lower (p<0.001). Boys aged 7-9 years had significantly higher iron intake (median=11.6, IQR=8.7 mg, p=0.003), whereas girls aged 10-12 years had significantly lower intakes of iron (mean±SD=11.4±5.1, 11.1±4.7) and vitamin A (median=416.6, IQR=450.4 µgRE, p<0.001 for both). Mean HEI score was 51.30±6.78, indicating a need for diet quality improvement. No significant association between diet quality and nutritional status was observed (p=0.380). Conclusion: This study provided insights into dietary intake, diet quality, and nutritional status of homeless children. Further research is vital to shape evidence-based nutrition interventions.
Nutritional profile among vegetarians and nonvegetarians in Denpasar, Indonesia
Authors:   Anatomy Department, Faculty of Medicine and Health Science, Warmadewa University, Indonesia, Sumadewi Komang Trisna , Witari Ni Putu Diah ,   Histology Department, Faculty of Medicine and Health Science, Warmadewa University, Indonesia, Evayanti Luh Gede ,   Anatomy Department, Faculty of Medicine and Health Science, Warmadewa University, Indonesia, Astini Dewa Ayu Agung Alit Suka ,   Anatomy Department, Faculty of Medicine and Health Science, Warmadewa University, Indonesia, Kerans Fransiscus Fiano Anthony ,   Histology Department, Faculty of Medicine and Health Science, Warmadewa University, Indonesia, Dewi Anak Agung Ayu Asri Prima ,   Histology Department, Faculty of Medicine and Health Science, Warmadewa University, Indonesia
Published: November 2024

Introduction: Despite the many health benefits of a well-balanced vegetarian or vegan diet providing, vegetarians are at increased risk of deficiency in certain nutrients, such as calcium and iron, which could lead to health issues. Our study aimed to assess nutrient intakes and nutritional status between dietary patterns that include or do not include meat consumption. Methods: This cross-sectional study was conducted in Denpasar, Bali, Indonesia. One hundred sixty respondents (80 vegetarians and 80 non-vegetarians) participated. Data were collected from interviews, a semi-quantitative food frequency questionnaire, and Nutrisurvey tools. Nutrient intakes were also assessed, including energy, carbohydrates, fat, protein, calcium, iron, zinc, and vitamin C. Body mass index (BMI) was used to determine nutritional status. Results: There were no appreciable difference (p>0.05) in carbohydrate intake between vegetarian and non-vegetarian groups. In contrast, the vegetarian group’s energy, protein, and fat intakes significantly differed from that of non-vegetarians (p<0.05). No significant differences (p>0.05) were found in calcium, zinc, vitamin C, vitamin D, vitamin B12, folic acid, and magnesium between the two groups. However, it was discovered that the two groups’ iron intake and BMI were significantly different (p<0.05). Conclusion: Vegetarians and nonvegetarians demonstrated differences in BMI, energy intake, protein consumption, fat consumption, and iron consumption. With a well-curated variety of food options and efficient administration of vegetarian meal plans, it is possible to effectively meet the nutritional requirements of individuals in terms of both essential vitamins and minerals, as well as carbohydrates, protein, and fats.
ECONOMIC EFFICIENCY OF ENERGY-EFFICIENT CONSTRUCTION
Authors: Kharit Oleg Michailovich
Published: November 2024

Energy efficiency plays a crucial role in the modern development of the construction sector, as it helps reduce energy costs and lower the negative impact on the environment. Under the conditions of global climate change and growing demand for energy resources, the issue of energy efficiency is becoming more and more relevant. The study aims to assess the effectiveness of implementing energy-efficient technologies in US buildings. As a result of the study, it has been established that energy efficiency is a key factor for reducing costs and CO₂ emissions, which is especially topical in the context of climate change. Investments in this area provide substantial economic benefits: the average net present value (NPV) for residential buildings is $15,000, while for commercial – $50,000. The internal rate of return (IRR) for residential objects reaches 12% and for commercial – 20%. The payback period for residential buildings is, on average, six years, while for commercial objects, it is only four years. Implementing energy-efficient technologies leads to a significant reduction in energy consumption, which provides savings of $4,200 per year for residential and $24,000 for commercial buildings. The decrease in CO₂ emissions is also substantial, with residential buildings reducing emissions from 50 to 30 tons per year and commercial buildings from 250 to 150 tons, both reductions amounting to 40%. The satisfaction level of residents of residential buildings is 88%, while that of commercial buildings is 92%. Thus, energy-efficient solutions positively affect the economy, ecology, and quality of life.
Alfabetización mediática: más allá de la lucha contra la desinformación
Authors: Sádaba Charo
Published: November 2024

En los últimos años la alfabetización mediática ha estado, de manera inusitada, en boca de responsables políticos que la señalan como necesaria para enfrentar la pandemia desinformativa que nos asola. Si bien es cierto que la digitalización ha provocado una ola creciente y cada vez más compleja de contenidos manipulados y falsos, también lo es que no se trata de un fenómeno reciente. Tampoco lo es la alfabetización mediática, que busca asegurar la capacitación de la ciudadanía para convivir y participar en un contexto de alta densidad digital y mediática. Fomentar el pensamiento crítico para filtrar contenidos falsos, pero también una actitud responsable para una participación cívica constructiva, están entre los propósitos de esta alfabetización. Limitar su alcance solo a una estrategia de defensa empobrece una propuesta que comprende a los y las ciudadanas del Siglo XXI insertas en una sociedad de la información y del conocimiento. Que además juegue un papel clave para proteger del principal efecto de la desinformación, la pérdida de confianza, es sin duda un valor añadido en estos momentos.
O PAPEL DA POESIA NA ATUALIDADE
Authors: Castilho Divina Eterna de Souza
Published: November 2024

Este artigo explora a relevância e os diversos papéis da poesia no contexto contemporâneo, destacando três principais aspectos: a poesia como forma de expressão social e política, sua adaptação às novas mídias e à cultura digital, e seu impacto terapêutico e emocional. A poesia, historicamente, sempre foi uma ferramenta poderosa para dar voz a questões sociais, denunciar injustiças e engajar-se politicamente. No mundo atual, poetas continuam a utilizar suas palavras para abordar temas como desigualdade, opressão e direitos humanos, reafirmando a poesia como uma forma de resistência e transformação social. Além disso, com o surgimento das novas tecnologias e das plataformas digitais, a poesia encontrou novas formas de se expandir. Redes sociais, blogs e vídeos permitiram que poetas atingissem públicos maiores, democratizando o acesso à poesia e possibilitando que novos autores emergissem. Por fim, o artigo aborda o papel terapêutico da poesia, que tem se mostrado uma ferramenta eficaz no alívio do estresse, na expressão emocional e na promoção do bem-estar psicológico. Em um mundo cada vez mais acelerado e marcado pela ansiedade, a poesia proporciona um espaço de introspecção e cura, tanto para quem escreve quanto para quem lê. Conclui-se que a poesia, longe de ser uma arte estática ou restrita, continua a ser uma forma viva e relevante de comunicação, adaptação e transformação no cenário contemporâneo.
Antioxidant and SPF Activity of Sunscreen Cream Preparations from 96% Ethanol Extract of Bractea Bougainvillea spectabilis Willd.
Authors: Yuliani Ni Nyoman , Siswandono.  , Erawati Tristiana , Elisma.  , Sambara Jefrin , V. Kapitan Lely A. , M. Indrawati Maria I. , F Maakh Yorida
Published: November 2024

Bractea Bougainvillea spectabilis Willd contains antioxidants which are used to brighten and moisturize the skin. Antioxidants can delay and prevent free radicals in the skin. The aim of this research is to make sunscreen cream preparations from 96% ethanol extract of Bougainvillea spectabilis Willd bractea ethanol extract with good physical quality, determine antioxidant activity and value. Sun Protection Factor (SPF) and testing the stability of sunscreen cream preparations. Testing antioxidant activity uses the DPPH Free Radical Reduction method, while determining the SPF value using in vitro using a UV-Vis spectrophotometer. The results of the research show that 96% ethanol extract of Bougainvillea spectabilis Willd bractea ethanol extract can be made into a cream that has good physical quality. Antioxidant activity of 1.5% ethanol extract (F3) bractea cream Bougainvillea spectabilis Willd with IC value50 amounting to 10.48 ± 3.92 (very strong category) has higher antioxidants compared to 0.5% ethanol extract cream (F1) has IC50 26,62 ± 6,73 (very strong category) and 1,0% ethanol extract cream (F2) has IC50 26.15 ± 3.22 (very strong category), compared to the positive control lower vitamin C cream 0.5% has IC50 6.95 ± 0.51 (very strong category). Sunscreen activity of 96% ethanol extract Bougainvillea spectabilis Willd Formula F3 has an SPF value of 21.22 ± 1.58 (ultra protection category) and has higher sunscreen activity than F1 with an SPF value of 12.48 ± 0.05 (minimal protection category) and F2 with an SPF value of 16.69 ± 0. 21 (ultra protection category) and positive control PABA2% cream SPF value 6.95 ± 0.51 (extra protection category).
Risk Factors for Progression of Hepatitis C Virus (HCV) Infection to Hepato Cellular Carcinoma (HCC)
Authors: Peer Nuzhat Maqbool , Joshi Vinod , Angel Annette , Angel Bennet , Buvvaji Shareef Mohammed
Published: November 2024

Chronic Hepatitis C virus (HCV) infection is closely associated with cirrhosis and with the prospective risk of Hepato-Cellular-Carcinoma (HCC). The long-term duration required for HCV transforming into HCC necessitates thorough study of various co-morbidities associated with HCV patients, some of which may act as predictors of HCC. Present paper reports co-morbidities among HCV patients. This is a hospital-based study. The patients reporting to Outdoor Patient Department (OPD) of Sharda hospital, Greater Noida, UP, India were enrolled for the study. Total number of 134 HCV positive patients were studied for the parameters pertaining to Liver Function Test (LFT), Kidney Function Test (KFT), Complete Blood Count (CBC). Of the 134 patients included in the study 31.34% were smokers and alcoholics and reported to the hospital with complaints of abdominal pain. Few patients (1.49%) presented the evidence of Chronic Liver Disease and/or cirrhosis. Among 61.9% patients high SGOT levels than normal and among 38.8% patients high SGPT levels were observed. Kidney function parameters viz; high levels of chloride are 29.85% of study subjects and higher levels of uric acid was observed in 18.6% of study subjects. In 55.55% of patients low levels of Hb was observed. Our study shows a parallel trend of abnormal parameters in the LFT, KFT and CBC parameters of HCV patients. The important lead is the simultaneous dysfunction of liver and kidney impacting upon haemoglobin which may lead to seriousness of respiratory efficiency caused due to low haemoglobin.
The usage of total knowledge by entrepreneurs in business decision-making
Authors: Saldaña-Larrondo Dulce , Giner-Crespo Vicente , Azuara-Grande Alberto
Published: November 2024

Introduction: This paper proposes the identification of those attributes of knowledge that entrepreneurs consider most important in the process of making their business decisions. Methodology: This main objective is finally described by obtaining a ranking, which, through the application of the analytic hierarchy process (AHP), will allow them to establish their priorities with respect to these attributes through a multi-criteria decision process. In order to obtain this priority ranking, a survey with a sample of 362 valid entrepreneurs’ responses in the Spanish metropolitan regions of Madrid and Barcelona was conducted. Furthermore, data validation was supervised by a panel of experts formed with 40 entrepreneurs. Results: The results of this research indicate that explicit and tacit knowledge form the same unit of knowledge necessary for decision making, instead of the weight that one dimension may have over the other one in the decisions of the entrepreneurs surveyed. Discussions: The ranking obtained will serve as a basis for the implementation of future specific proposals to this group. Conclusions: This research could be extrapolated to other geographical areas or types of entrepreneurs in different countries to obtain possible differences between entrepreneurial cultures. This also could identificate differences between professionals with different levels of training.
Los medios de comunicación como constructores de realidad desde las tematizaciones de violencia: Diario El Meridiano de Córdoba (Colombia)
Authors: Vélez Carvajal Julián , Ponce Martínez Elena Hortencia , Quintana Fernández Melissa
Published: November 2024

Introducción: Este estudio analiza el rol de los medios de comunicación en la construcción de la realidad en el contexto del posacuerdo colombiano y el conflicto actual, explorando las tematizaciones realizadas por El Meridiano de Montería sobre la violencia en Córdoba en 2021. Metodología: Desde una perspectiva sistémica, se adoptó un enfoque cualitativo con análisis de contenido, utilizando el método de semana compuesta para seleccionar la muestra y el software NVIVO para la codificación de datos. Resultados: Los resultados muestran que las violencias se tematizan en categorías emergentes: accidentes, acciones militares, crimen organizado, delincuencia común y violencias cotidianas. Discusión: El estudio interpreta cómo los medios, al seleccionar y simplificar información, participan en la construcción de una realidad mediada, en este caso enfocada en temas de violencia desde el lenguaje de la violencia cultural. Conclusiones: Se concluye que los medios de comunicación juegan un papel crucial en moldear la percepción pública del conflicto mediante la tematización selectiva de actos de violencia, influyendo en la agenda de opinión pública.
Análisis financiero y tendencias económicas en las principales empresas farmacéuticas globales: un estudio de los últimos cinco años
Authors: Granados-González Patricia , Lindez Macarro Elena
Published: November 2024

Introducción: La industria farmacéutica jugó un papel crucial durante la pandemia de COVID-19, enfocándose en la investigación, desarrollo y comercialización de tratamientos y vacunas. Metodología: Se realizó un análisis de estados financieros utilizando herramientas como porcentajes horizontales, verticales y ratios. Los datos provienen de la base ORBIS, que clasifica a las empresas según la NACE (Clasificación Europea de Actividades Económicas). El estudio se centró en las doce principales empresas farmacéuticas por facturación y activos, en su mayoría ubicadas en EE. UU. Resultados: Se observó una tendencia al alza en ingresos, rentabilidad económica y otros indicadores en las doce empresas. Pfizer se destacó como líder en 2022, impulsada por el éxito de su vacuna desarrollada con BioNTech. Discusión: A pesar de los altos costos en I+D, los esfuerzos realizados por las empresas farmacéuticas durante la pandemia produjeron resultados económicos favorables, especialmente para aquellas involucradas en el desarrollo de vacunas. Conclusiones: La inversión en I+D fue clave para la rentabilidad del sector farmacéutico durante la pandemia, evidenciando el impacto positivo de estas inversiones en los resultados financieros de las principales empresas
Publicidad audiovisual sostenible para bebidas alcohólicas: un modelo transversal
Authors: Ávila Rodríguez-de-Mier Belén , López Agulló Pérez-Caballero José Manuel , García-Chamizo Fernando
Published: November 2024

Introducción: El objetivo del trabajo es modelizar las estrategias y acciones que ayudan a que las marcas de bebidas alcohólicas desarrollen campañas publicitarias audiovisuales más sostenibles. Metodología: Investigación cualitativa exploratoria-descriptiva basada en una triangulación múltiple de métodos, fuentes e investigadores. El modelo resultante se aplica a las campañas “Lola” (2021) y “Gitana” (2024) de Cruzcampo. Resultados: Un modelo trasversal de publicidad audiovisual sostenible de 4 categorias y 18 subcategorias. Discusión: Se resalta la importancia de los sistemas de autorregulación de las marcas de bebidas alcohólicas y de sus colaboradores. Se subraya la necesidad de mejorar y visibilizar las prácticas de la producción audiovisual publicitaria. Conclusiones: El sector cervecero español demuestra un alto nivel de responsabilidad, aunque persisten carencias en la evidencia de un proceso de producción publicitaria sostenible. Es esencial profundizar en el desarrollo de la figura del eco-manager y en la implementación de sellos de eco-producción. Se confirma que la cultura es el cuarto pilar de la sostenibilidad y que las estrategias de comunicación neolocalista ayudan a las marcas a crear publicidad más sostenible.
A Comunicação Interna e a promoção do Bem-Estar emocional no Politécnico de Portalegre
Authors: Marat Grilo Márcia , Pacheco Cláudia
Published: November 2024

Introdução: O bem-estar emocional tem vindo a ganhar relevância na Comunicação Interna no contexto organizacional, especialmente após a pandemia covid-19. O Politécnico de Portalegre, uma instituição pública de ensino superior em Portugal, tem desenvolvido estratégias de comunicação direcionadas aos seus públicos internos. Este estudo pretende perceber se existe uma estratégia alinhada com esta temática. Metodologia: A questão central é: a instituição tem gizada uma política de comunicação interna para a promoção do Bem-Estar emocional? Em que medida se reflete na comunicação digital? Adotando uma abordagem qualitativa, realizámos entrevistas semi-diretivas no contexto da instituição e efetuámos análise de conteúdo das publicações no Instagram. Resultados: Os resultados revelam que o Politécnico desenvolve ações para promover o Bem-Estar junto dos seus públicos internos, especialmente através do programa UBUNTU. Relativamente à comunicação no Instagram, destaca-se o envolvimento dos vários públicos internos. Discussão: Colocando os públicos internos no centro da comunicação, a instituição reforça a importância e valorização destes, visando contribuir para a criação de um ambiente de confiança, essencial para o bem-estar emocional. Conclusões: A estratégia de comunicação interna está alinhada com práticas de  promoção do bem-estar emocional, que visam fomentar um sentido de comunidade e de pertença.
Three-component aerodynamic load cells
Authors: Kozlov Viktor Savelievich , Kotelnikova Svetlana Vladimirovna
Published: November 2024

The article examines the effect of flow on models studied in wind tunnels. To determine the force effect of the flow on the model under study, a more accurate and reliable method of directly measuring forces and moments using aerodynamic strain gauge balances is proposed. When solving a plane problem for a symmetrical model at zero slip angle, a design of three-component scales is proposed that measures the lift force, the drag force and the pitching moment. To eliminate the interaction between the supporting devices and the model, which causes disturbances in the flow near the model, the scales are located outside the model and the working part of the wind tunnel. The components of the aerodynamic force and moment acting on the model are measured using resistance strain gauges, which convert the deformation of the elastic element into a change in electrical resistance, which is measured by an instrument connected to an appropriate measuring circuit. The choice of strain gauges as weight elements is due to their very small size and weight, the ability to measure very small relative deformations of elastic elements, low inertia, which makes it possible to measure not only static but also dynamic loads, and the possibility of remote measurements. To compensate for the influence of various sources of errors, increase sensitivity and ensure greater measurement accuracy, the strain gauges are connected via a bridge circuit and included in all four arms of the bridge. Deformation of the horizontal measuring beam causes a change in resistance not only in the strain gauges that measure the pitching moment, but also in the strain gauges designed to measure the lift force. Since the design of the scales does not allow for electrical separation of these components, the influence of the pitching moment on the magnitude of the lift force is determined during the calibration process and is assessed using a special influence graph constructed from the results of calibration data. In strain gauge measurements, the output values of forces and moments acting on the model under test are obtained in the form of corresponding readings from a device that measures electrical signals proportional to the applied forces. To convert instrument data into values of forces and moments, a joint calibration of scales and instruments is carried out in order to obtain calibration coefficients. Additional components of aerodynamic forces and moments created by the holder are determined by purging it in the presence of the model. Calculated dependencies for determining the components of the aerodynamic impact are given. The values of the coefficients of aerodynamic forces and moments are given in the flow coordinate system. The pledge has been given.
Implementation of additive 3D printing technology in the development of an experimental oxygen-hydrogen low thrust rocket engine
Authors: Koshlakov Vladimir Vladimirovich , Mosolov Sergey Vladimirovich , Klimenko Alexander Gennadievich , Akbulatov Edkham Shukrievich , Nazarov Vladimir Pavlovich , Gerasimov Evgeny Vitalievich
Published: November 2024

The creation of spacecraft propulsion systems with high energy efficiency and minimal weight and size parameters is an urgent scientific and technical task of the domestic rocket engine industry. At the same time, requirements are put forward to optimize the cost and time of design, development and manufacturing of engines, as well as environmental safety at all stages of the product life cycle. In this regard, it is proposed to use advanced laser 3D printing technologies (additive technologies) from metal powder using CAD models of engine parts in the production of space low thrust rocket engines (LTRE).
Laser melting technology on modern 3D printers makes it possible to produce complex monolithic engine structures without the use of labor-intensive and resource-intensive operations of machining, welding, and soldering, as well as a significant reduction in the volume of plumbing, assembly, control and measuring work, and a decrease in the influence of some non-production factors.
The article discusses issues of practical application of promising technologies in the creation of LTRE. The results of fire tests are presented, which will be used to refine the previously developed calculation models of oxygen-hydrogen LTRE when creating advanced rocket engines for spacecraft.
The object of the study was an experimental sample of LTRE with a nominal thrust of 150 N using gaseous fuel components oxygen and hydrogen, developed and manufactured using additive technology. The experimental LTRE is considered as a prototype of the engine for orientation, stabilization and launching of the oxygen-hydrogen upper stage. The purpose of the work is to study the effectiveness of previously unexplored design solutions for organizing mixture formation and cooling of an oxygen-hydrogen LTRE, to determine their influence on the perfection of the working process and the thermal state of the engine chamber. Fire tests were carried out in single switching mode with a duration sufficient for the LTRE chamber to reach a stationary thermal regime, with the determination of the energy characteristics and thermal state of the structure.
Development of the two-fuel combustion chamber and calculation of processes for the theory of turbulent burning
Authors: Baklanov Andrey Vladimirovich
Published: November 2024

In this material development stages of the two-fuel combustion chamber for the HK-16-18CT engine are presented. Calculation of processes on the basis of the theory of turbulent burning is made.
One of competitive advantages of stationary gas-turbine installation is the possibility of work on two types of fuel: on diesel and on gaseous. Therefore creation of the two-fuel combustion chamber is relevant. The designing process of the two-fuel combustion chamber consists of several stages. At the first stage the nozzle is developed. It is equipped with two internal fuel channels. Then the front device is designed. in it nozzles are placed in two ranks. This device is equipped with two separate fuel collectors. It contains cavities for a fuel supply to two channels of nozzles. Such constructive decision allows to carry out switching of one type of fuel to another without stopping operation of the engine. As a prototype for distribution of air on length of a spherical pipe the combustion chamber of the NK-8-2U engine is taken.
Calculation of processes in the combustion chamber was carried out on the basis of the theory of turbulent burning. During calculation such parameters as the normal speed of burning, the pulsation speed, coefficient of turbulent exchange, scale of turbulence and intensity of turbulence are determined.
The equation of thermal balance for determination of temperature in the considered area at combustion of natural gas and diesel fuel is created. It is considered what in one case is spent warmly going for evaporation of liquid fuel, in other case it is not necessary.
For calculation of formation of nitrogen oxides Ya. B. Zeldovich's theory of thermal oxidation of nitrogen is used by oxygen. Emissions of carbon monoxide are determined by an empirical formula
From gasdynamic calculation of the HK-16-18CT engine parameters on an entrance to the combustion chamber on various operating modes at combustion of natural gas are known.
Calculation for definition of a necessary consumption of diesel fuel for power setting at preservation of temperature at the exit is executed from the combustion chamber.
By results of calculation the schedule of emission of harmful substances from power setting on gas and diesel fuels is constructed. The comparative schedule of dependence of completeness of combustion of fuel on power setting is constructed.
Settlement emissions of harmful substances of the developed combustion chamber in the range of operation of the engine on power from 0,7Ne to 1 Ne for liquid fuel: NOx15%O2 does not exceed 250 mg/m3, СO15%О2 does not exceed 300 mg/m3; for gaseous NOx15%O2 fuel does not exceed 120 mg/m3, СO15%О2 does not exceed 150 mg/m3.
The effect of laser texturing of the surface of a titanium alloy on the adhesive strength of adhesive joints
Authors: Rudenko Mikhail Sergeevich , Girn Alexey Vasilievich , Mikheev Anatoly Egorovich , Oreshkin Dmitry Igorevich
Published: November 2024

The paper examines issues related to the influence of laser texturing of the surface of a titanium alloy on the characteristics of the titanium-carbon fiber adhesive joint. Using an ytterbium pulsed fiber laser, textures with a linear structure (0°–0° and 90°–90°) and a mesh structure (0°–90°, ±30°, ±45°, ±60°) were created on the surface of a titanium alloy. The surface roughness values in two perpendicular directions were determined, and microsections were made, which can be used to characterize the surface morphology of the titanium alloy. To determine the adhesive strength of the joint, samples with the same surface texture were glued together. The samples were glued together according to OST 1-90281–86. Bonding was carried out within 24 hours after laser surface treatment. Before gluing, the treated surface was cleaned with isopropyl alcohol. Adhesive joint area S = 300 mm2. Three-component adhesive VK-9 based on epoxy and polyamide resin was used as an adhesive. Laser surface treatment of titanium alloys increases the strength of the adhesive joint by more than 70 % relative to the untreated surface. This may indicate that the main mechanisms for increasing the strength of an adhesive joint are an increase in the contact area between the surface and the adhesive, and chemical modification that activates the surface. The processing texture has a lesser effect on the adhesive strength, provided that the specific surface energy of the laser processing is the same. When laser processing, you should pay great attention to the choice of surface texture, because certain textures can give an increase in strength by 20–30 %. If the type of load in the truss load elements is known, then it is better to use linear textures directed perpendicular to the direction of the load (for shear – texture 0°–0°; for torsion – texture 90°–90°). For mixed loads, it is better to use mesh structures ±30°, ±45°, ±60°, which resist loads in two directions.
PREPARATION AND CHARACTERIZATION OF ZINC CROSSLINKED CHITOSAN MEMBRANE AS AN EFFECTIVE ADSORPTION MATERIAL FOR AMOXICILLIN IN PHARMACEUTICAL WASTEWATER
Authors: Hastuti Budi , Isnaini Rizki Nur , Hadi Saptono , Kamari Azlan
Published: November 2024

This study aims to synthesize a zinc crosslinked chitosan (Chi/Zn) membrane as an adsorbent for amoxicillin in pharmaceutical wastewater. The Chi/Zn membranes were prepared over 14 hours at 50 °C with varying chitosan and zinc concentrations. FTIR analysis confirmed successful crosslinking by identifying hydroxyl (O-H), carbonyl (C-O), and amine groups (NH2), along with N-Zn and O-Zn interactions. XRD analysis indicated an amorphous structure, while SEM revealed rough, uneven surfaces. The highest adsorption capacity of a chitosan membrane occurs at a concentration of 60 mg/L. At this concentration, the pure chitosan membrane's adsorption effectiveness and capacity are 42.2% and 42.2 mg/L, respectively. The Chi/Zn membrane adsorbed amoxicillin with an adsorption efficiency of 58.86% with an adsorption capacity of 58.86 mg/g. Thus, it can be said that the chitosan/Zn membrane is quite effective in being applied as an amoxicillin adsorbent in pharmaceutical waste.
Instauración y defensa de la carrera de Medicina Rural en el Instituto Politécnico Nacional, 1938–1944
Authors:   Instituto Politécnico Nacional, Valencia Flores Abraham
Published: November 2024

This article explains the disciplinary, professional, and ideological process that led to the creation of the Rural Medicine (MR) program in 1938 at the National School of Biological Sciences (ENCB) of the National Polytechnic Institute (IPN). It is based on the premise that this program emerged in a scenario of national debates regarding the right to health, enshrined in the 1917 Constitution, and the urgent need to train physicians with a rural focus. I explain how doctors, anthropologists, and bacteriologists from the encb played a key role in the development of this program, as they were connected to major state health institutions, scientific and educational organizations, and social organizations – such as unions –, which promoted a medicine with a social and rural focus. I also discuss how the program was defended by its founders against various medical sectors at the Second National Congress on Rural Hygiene in November 1938. Finally, I conclude that this defense ensured the consolidation of the program, which in 1944 transformed into the Superior School of Rural Medicine. This research is supported by sources from the ipn Historical Archive, the National General Archive, and hemerographic sources.
TEACHING WRITING DESCRIPTIVE TEXT BY USING REALIA MEDIA TO THE EIGHTH GRADE STUDENTS’ AT SMP NEGERI 9 PRABUMULIH
Authors: Delsi Arini  , Mulyadi  , Herlina
Published: November 2024

The aim of this research is to find out the effectiveness of using realia media in teaching descriptive text writing of students at SMP Negeri 9 Prabumulih. The research method used in this research is experimental with pre-experimental design. The research design used one-group pretest-posttest design. The samples of this research were 30 students consisting of 17 male students and 13 female students. Data collection techniques are done by tests. Tests are given at the pretest and the posttest. The results of this research indicate that realia media was effective to use in teaching writing descriptive text to the eighth grade students’ at SMP Negeri 9 Prabumulih. After the data from the pretest and the posttest were analyzed, the average results of the pretest were 62.8 and the posttest was 74.48. This is reinforced by the t test obtained tcount> ttable which is 5.254> 1.699 based on these results indicate Ha is accepted and Ho is rejected. So it can be concluded that realia media was effective to use in teaching writing descriptive text at SMP Negeri 9 Prabumulih.
Alternating Projection Method for Intersection of Convex Sets, Multi-Agent Consensus Algorithms and Averaging Inequalities
Authors: Proskurnikov A. V. , Zabaryanskaya I. S.
Published: November 2024

The history of the alternating projection method for finding a common point of several convex sets in Euclidean space goes back to the well-known Kaczmarz algorithm for solving systems of linear equations, which was devised in the 1930s and later found wide applications in image processing and computed tomography. An important role in the study of this method was played by I.I. Eremin’s, L.M. Bregman’s, and B.T. Polyak’s works, which appeared nearly simultaneously and contained general results concerning the convergence of alternating projections to a point in the intersection of sets, assuming that this intersection is nonempty. In this paper, we consider a modification of the convex set intersection problem that is related to the theory of multi-agent systems and is called the constrained consensus problem. Each convex set in this problem is associated with a certain agent and, generally speaking, is inaccessible to the other agents. A group of agents is interested in finding a common point of these sets, that is, a point satisfying all the constraints. Distributed analogues of the alternating projection method proposed for solving this problem lead to a rather complicated nonlinear system of equations, the convergence of which is usually proved using special Lyapunov functions. A brief survey of these methods is given, and their relation to the theorem ensuring consensus in a system of averaging inequalities recently proved by the first author is shown (this theorem develops convergence results for the usual method of iterative averaging as applied to the consensus problem).
SURVEI KEPUASAN PESERTA PERMAINAN SIMULASI BISNIS SEBAGAI EVALUASI SEBELUM MERILIS PENAWARAN BARU : STUDI PADA PT. HARFAN TRI MEGAH (EDUGATE)
Authors: Syofiyah Ghina , Muslichah Istyakara
Published: November 2024

Permainan simulasi telah menjadi salah satu metode pendekatan yang semakin populer dalam dunia pendidikan. EDUGATE (PT Harfan Tri Megah) adalah salah satu perusahaan swasta lokal yang menyediakan game simulasi bernama Business Simualtion (BUSSIM) dan telah digunakan di banyak universitas di Indonesia. Meskipun ada kepuasan terhadap game dalam pembelajaran, tidak ada bukti yang jelas mengenai efek positif atau negatif dari game tersebut terhadap motivasi, persepsi kemampuan, dan pencapaian siswa. Oleh karena itu, penelitian ini dilaksanakan untuk mengetahui tingkat kepuasan, pemahaman, dan motivasi mahasiswa pada mata kuliah ERP yang disisipi permainan BUSSIM. Pendekatan kuantitatif digunakan dalam penelitian ini melalui penyebaran kuesioner dengan teknik purposive sampling dan menggunakan rumus Lemeshow untuk menentukan jumlah respondennya. Penyebaran kuesioner dilakukan secara online kepada mahasiswa yang sudah mendapatkan mata kuliah ERP dan pernah mengikuti perlombaan BUSSIM. Data yang diperoleh diolah dengan teknik analisis statistik deskriptif dan menghasilkan temuan bahwa mahasiswa sangat setuju mereka merasa puas dan paham dengan pembelajaran mata kuliah ERP yang disisipi game Business Simulation. Selain itu, integrasi permainan Business Simulation dalam mata kuliah ini tidak hanya menimbulkan minat mereka terhadap materi pelajaran, konten, dan pekerjaan yang diberikan, tetapi juga meningkatkan motivasi mereka untuk lebih mendalami dan berkomitmen pada mata kuliah ERP. Untuk memaksimalkan manfaatnya, metode pembelajaran dengan menggunakan game simulasi ini harus diiringi dengan desain pembelajaran yang baik dan tenaga pendidik yang terlatih agar game tersebut diimplementasikan secara efektif dan mendukung tujuan pembelajaran.
Dialäktatlas
Authors: Leemann Adrian , Steiner Carina , Studerus Melanie , Oberholzer Linus , Jeszenszky Péter , Tomaschek Fabian , Kistler Simon
Published: November 2024

Sprichst du noch so wie deine Grosseltern? Der neue Dialäktatlas zeigt auf, wie sich die schweizerdeutschen Dialekte in den letzten Jahrzehnten verändert haben. In einer Kombination von traditioneller Feldforschung und modernen Technologien wie Smartphone-Apps und Zoom wurden Sprachdaten von über 1000 Personen von Basel bis Bosco / Gurin und von Salgesch bis Diepoldsau gesammelt und analysiert. Wie haben sich Aussprache, Wörter, Grammatik und die Sprache im Alltag verändert? Welche Unterschiede gibt es zwischen den Regionen und Generationen? In über 500 Karten werden 166 Phänomene fundiert und zugleich leicht verständlich vorgestellt. So öffnet der Dialäktatlas ein Fenster zur Vielfalt und zum Wandel der Dialektlandschaft des Schweizerdeutschen.