bluuebunny/crossref_metadata_2025 huggingface dataset:
L2 Listening, Word Gain, and Learner Perspectives through Partial Dictation vs Reading-while-listening
Authors:   Center For Educational Research, Park Eun
Published: April 2024

Purpose: This study explored how the partial dictation of key words with L1 glossing (PDGL1) and reading-while-listening with the words boldfaced and underlined (RWLBU) while listening to audiovisual TED talks differently influence L2 listening, word gain, and learner perspectives.
Methods: Fifty-six beginner learners took part in the study who were randomly assigned to the two groups. Data collection consisted of a pretest for selecting target words (TWs), a pretest for listening comprehension, two times of interventions, two immediate posttests for TWs, and a retrospective questionnaire.
Results: The results showed that overall the PDGL1 group yielded significantly more immediate word recall and delayed retention in receptive and productive knowledge as well as listening comprehension, while RWLBU only contributed for immediate receptive word recall. Both groups showed positive perspectives on word learning and affective factors such as motivation and interest with no significant differences.
Conclusion: The beneficial results from PDGL1 appeared to be attributed to language-focused partial dictation of key words with L1 glosses, which promotes learners to pay attention to form-meaning connections and cognitive processes. This could encourage beginner learners to be involved in better language performances, resulting in positive perspectives (Dankook University).
The Influence of Early Childhood Teachers’ Childhood Attachment Experiences on Preschooler-teacher Relationships: Examining the Mediating Effect of Psychological Flexibility
Authors:   Center For Educational Research, Kim Hye-Seong , Chae Jin-Young
Published: April 2024

Purpose: This study investigated attachment experiences in childhood, psychological flexibility, and the level of preschooler-teacher relationships of early childhood teachers, and analyzed the effect of childhood attachment experiences on preschooler-teacher relationships based on verifying the mediating effect of psychological flexibility.
Methods: A survey was conducted with 274 homeroom teachers in charge of infants aged three to five at a domestic Early Childhood Education institution. The collected data were calculated using the SPSS version 26.0 to calculate the mean and standard deviation. Pearson's correlation analysis was conducted to examine relations among the variables. Mediating effects were tested with Model 4 of the PROCESS macro for SPSS version 4.1.
Results: First, the childhood attachment experiences of Early Childhood teachers, psychological flexibility, and the level of preschooler-teacher relationships were all above the middle range. Second, psychological flexibility partially mediated the influence of childhood attachment experiences of Early Childhood teachers on preschooler-teacher relationships.
Conclusion: This research provides basic data on childhood attachment experiences, psychological flexibility, and the preschooler-teacher relationships of Early Childhood teachers and reveals a high positive influence relationship between these variables. This reveals that Early Childhood teachers need to mentally and institutionally support Early Childhood teachers in order to improve their childhood attachment experiences, psychological flexibility, and move preschooler-teacher relationships to a higher level.
The influence of infant and toddler teachers on media and their perception of media education
Authors:   Center For Educational Research, Choi Jae-Won , Bang Hyo-Kook
Published: April 2024

Purpose: The purpose of this study was to discover the media influence and perception of media education for infants and toddlers. Research questions for this were set as infant teachers' perception of media and infant teachers' perception of media education.
Methods: For this study, a preliminary survey was conducted after composing a questionnaire through related prior research and literature analysis. This survey was conducted by wireless sampling infant teachers working in educational fields in Seoul and Gyeonggi Province and distributing data face-to-face and non-face-to-face from September 28, 2022, to October 31, 2022. A total of 290 copies of data were collected, but 268 copies of data were finally selected excluding twenty-two copies of unfaithful responses. For the collected data, frequency analysis, mean, standard deviation, skewness, and kurtosis were calculated according to the research questions using SPSS 29.0.
Results: When the research results were presented according to the research questions, first, the media was recognized as affecting infants and toddlers. The biggest positive influence was the convenient acquisition of information and knowledge to solve questions in infancy when curiosity was high, and the biggest negative influence was to imitate the wrong actions and words of characters appearing in the media. In addition, among various media, digital media had an enormous influence and print media such as newspapers and magazines were recognized as having little influence. Second, there was a need for media education for infants and toddlers, and the leader of media education was recognized as a teacher. In addition, it was recognized that the most important goal of media education is to cultivate the habit of responsible and safe use of media.
Conclusion: In conclusion, infant and toddler teachers should be able to use media in terms of education in consideration of its positive and negative influences. In addition, it is required that media education programs for infants and toddlers in development should reflect changes in the digital media environment, and it is necessary to cultivate teachers' capacity for media education through educational training for teachers.
Denegación de cambio de sexo registral: comentario al Auto del Magistrado del Registro Civil Único de Las Palmas de Gran Canaria de 18/09/2023
Authors: Aguas Valero Gerardo
Published: April 2024

El presente trabajo analiza el Auto 1045/2023, de fecha 18 de septiembre. Resolución que iba a suponer, a la postre, la denegación de la solicitud de un ciudadano que había pretendido, amparándose en Ley 4/2023, del 28 de febrero, una rectificación registral de la mención relativa al sexo, de varón a mujer, conservando su nombre.
Importance of Tumour Suppressor Gene Methylation in Sinonasal Carcinomas
Authors: Chmelařová Marcela , Sirák I. , Mžik M. , Sieglová K. , Vošmiková H. , Dundr P. , Němejcová K. , Michálek J. , Vošmik M. , Palička V. , Laco J.
Published: April 2024

Epigenetic changes are considered to be a frequent event during tumour development. Hypermethylation of promoter CpG islands represents an alternative mechanism for inactivation of tumour suppressor genes, DNA repair genes, cell cycle regulators and transcription factors. The aim of this study was to investigate promoter methylation of specific genes in samples of sinonasal carcinoma by comparison with normal sinonasal tissue. To search for epigenetic events we used methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) to compare the methylation status of 64 tissue samples of sinonasal carcinomas with 19 control samples. We also compared the human papilloma virus (HPV) status with DNA methylation. Using a 20% cut-off for methylation, we observed significantly higher methylation inRASSF1,CDH13,ESR1andTP73genes in the sinonasal cancer group compared with the control group. HPV positivity was found in 15/64 (23.4 %) of all samples in the carcinoma group and in no sample in the control group. No correlation was found between DNA methylation and HPV status. In conclusion, our study showed that there are significant differences in promoter methylation in theRASSF1,ESR1,TP73andCDH13genes between sinonasal carcinoma and normal sinonasal tissue, suggesting the importance of epigenetic changes in these genes in carcinogenesis of the sinonasal area. These findings could be used as prognostic factors and may have implications for future individualised therapies based on epigenetic changes.
Entrepreneurial Passion: A Key Driver of Social Innovations for Tourism Firms
Authors: Dias Álvaro , Hallak Rob , Patuleia Mafalda
Published: April 2024

Small and medium tourism enterprises (SMTEs) play a vital role in the sustainability and innovation of tourism destinations. Although their role in the sustainability of destinations has received much attention, research focusing on the antecedents of their social innovation practices remains limited. Drawing on theories on entrepreneurship and social innovation, this study contributes to the body knowledge through an empirical analysis of the factors that drive the social innovations of tourism entrepreneurs. For this purpose, a mixed method approach is conducted which includes an e-survey of tourism entrepreneurs (analysed using PLS-SEM, NCA and IPMA) followed by in-depth interviews to gain additional insights. The results showed that 68 % of the SMTEs pursue social development objectives, and 44 % seek opportunities to improve the social conditions of the community in which the firm operates. The results also reveal that entrepreneurial self-efficacy, community attachment and entrepreneurial passion positively influence social innovations, however, entrepreneurial passion is a ‘necessary condition’ for achieving social innovation outcomes. Research also found that ‘opportunity perception’ has an indirect effect on social innovations that is mediated by entrepreneurial self-efficacy. The results provide important insights for the development of social innovation in the context of tourism entrepreneurs, with practical implications for local governments and destination authorities in supporting entrepreneurship and sustainability.
Study on flame retardant properties and thermal stability of synergistically modified polyurethane foam with ammonium polyphosphate and barium phytate
Authors: Ding Gaojie , Sun Simiao , Ding Shou , Zhang Xu , Xie Hua
Published: April 2024

Barium phytate (Pa–Ba) was prepared by phytic acid and barium carbonate, and then the flame-retardant modified polyurethane foam (PUF) was synergized with Pa–Ba and ammonium polyphosphate (APP). The flame retardant properties and thermal stability of the modified PUFs were investigated by thermogravimetric analysis, cone calorimetry (CONE) and smoke density (Ds). The results showed the modified PUF with the addition of 5 % Pa–Ba and 10 % APP (PUF-A10-PB5) had the highest integral programmed decomposition temperature and the activation energy, indicating that its thermal stability was better compared with other samples. In addition, PUF-A10-PB5 had the lowest total heat release under different radiation intensities, and it had the smallest Ds and the highest light transmittance under the flame and flameless condition. The current results indicated that PUF-A10-PB5 had better flame-retardant properties and thermal stability, which can provide a useful reference for future experimental studies on the flame retardant properties of phytate-modified PUF.
The role of awareness in implicit and explicit knowledge
Authors: Kachinske Ilina , DeKeyser Robert
Published: April 2024

This study investigates the initial incidental acquisition of two L2 morphosyntactic rules and their immediate usage in production. Using a miniature artificial language paradigm, multiple exposure sessions, realistic exposure, non-salient linguistic features, as well as multiple outcome measures, we demonstrate that adult learners can learn animacy with low levels of awareness, but not case. Forty adult native speakers of English participated in the experiment. Participants were exposed to audio sentences in the artificial language paired with pictures on the computer screen for three sessions. Knowledge of animacy and case was measured with production and grammaticality judgment tests. Results demonstrated that concrete, contiguous and easily trackable L2 properties that lend themselves to distributional learning, such as animacy marking, can benefit from incidental exposure. However, more abstract L2 properties, like the morphological paradigm of case, seem not to be learnable by incidental means, and opportunities for explicit learning must be provided.
Advancing language teacher emotion research: a nuanced, dialectical, and empowering stance
Authors: Yuan Rui Eric
Published: April 2024

This commentary presents a nuanced, dialectical, and empowering perspective on research pertaining to language teacher emotions, drawing upon empirical research papers featured in this special issue, as well as other relevant literature in the field of language teacher education. Recognizing the embodied, dynamic, and potentially contested nature of teacher emotional labor, the paper emphasizes the importance of presenting a nuanced portrayal, adopting a dialectical approach, and embracing an empowering mindset when investigating language teacher emotions. It also highlights important directions for future research, advocating for a conceptual shift toward examining teacher emotional labor as a distributed practice with a participatory and transformative orientation. Furthermore, the significance of both “looking inward” to delve into specific types of emotions and their interactions as well as “looking outward” to explore how emotions relate to other crucial dimensions of language teachers’ professional practices such as identity, mindfulness, and resilience, is emphasized.
Rapid screening technique for gross α and gross β estimations in aqueous samples during radiation emergency
Authors: Deogaonkar-Bhade Sonali Paresh , Sankhla Rajesh , Sawant Pramilla D.
Published: April 2024

A portable liquid scintillation counting system has been used as a rapid screening tool for radiological characterization and in situ measurements of aqueous samples. The methodology was standardized based on the Pulse Length Index for gross α and gross β activity determinations in aqueous solutions by means of a portable Liquid Scintillation Counter (LSC). This single compact PMT system yielded precise results for aqueous test samples, which were validated against a conventional HIDEX 300SL LSC system. The sensitivity of the portable LSC for gross measurements was investigated thoroughly for various combinations of scintillation cocktails and sample proportions, and found to be well below the Operational Intervention Levels (OILs) recommended by Atomic Energy Regulatory Board (AERB) during radiation emergency scenarios. Gross α- and β-activity measurements by means of the portable LSC system have shown this procedure to be effective for preliminary screening and evaluating the total radioactivity in aqueous samples during such radiation emergencies.
Feeling for Augustine
Authors: Conybeare Catherine
Published: April 2024

This essay promotes affective engagement with the texts we read, arguing that we should attend both to recognizing emotion within the texts and to allowing ourselves to feel emotion as we read. The essay thus aligns itself with contemporary theories of non-hermeneutic or surface reading. The argument is illustrated specifically by the relationship of Augustine of Hippo (354–430 CE) to the emotion of anger. The transcripts of the Council of Carthage, held in 411, show an eruption of anger on Augustine’s part. The essay then traces his thinking on anger through various texts, notably the City of God, the Augustinian Rule, and the personal letters to Nebridius. Using the reflections on anger of the contemporary philosopher Agnes Callard, I argue that Augustine saw anger as a unique type of moral problem, something that, once experienced, was ineradicable and distorted a sense of justice and order. It is only through an emotionally engaged reading that such a position is perceptible.
Writing the Everyday Breaking Body
Authors: Wyatt Jonathan
Published: April 2024

As part of his working toward a new book, Writing, the Everyday, and Creative-Relational Inquiry, this article enquires into the everyday body, the body’s losses, joys, mess, beauty, and contradictions. It is an article about how a(n aging, White, male) body breaks, how it might (or might not) heal, what a body in its everyday movements remembers, knows, conveys, carries, mourns; what is lost but present. It begins to trouble and explore how we conceptualize “the body.” Bringing to the page the everyday poetics and prosaics of the struggling, soaring, body, and the legacies it holds, the article looks for creative-relational possibilities for writing the in/corporeal.
Becoming a Leader
Authors: Whitehead James
Published: April 2024

Having been a British army officer and a business consultant, the author came to academia with a personal understanding of what he believed leadership to be. Yet, in formulating ideas for research, he realized that he had never reflected on how he came to that understanding, how it shaped his approach, and how it might have constrained it. Given his wish to research leadership through the experiences of others, it seemed sensible to first investigate his own. What emerges is a journey from leadership understood primarily as a linear, leader-follower dynamic, to a more indirect and fluid understanding of influence and collective action, mirroring a broader cultural shift from heroic to post-heroic formulations of leadership, which was anticipated in the first half of the last century by Mary Parker Follett and whose ideas provide a framework for this exploration.
Características clínicas en pacientes atendidos en una unidad de psiquiatría de emergencia en un hospital general de Perú
Authors: Podestá Angela , Huarcaya-Victoria Jeff
Published: April 2024

Introducción. En los últimos 10 a 20 años, la psiquiatría de emergencia ha experimentado un progreso constante en cuanto a la prestación de servicios altamente especializados y enfocados en el paciente. Este aumento global refleja desafíos en accesibilidad y calidad de atención. En el contexto peruano, la legislación de salud mental y múltiples directrices clínicas orientan la prestación de servicios, no obstante, la insuficiencia de datos representa una barrera significativa para la toma de decisiones informadas. Objetivo. Examinar y reportar las características sociodemográficas y clínicas de los pacientes evaluados en la Unidad de Psiquiatría de Emergencia del Hospital Nacional Guillermo Almenara Irigoyen (HNGAI), de Lima, Perú, y analizar la naturaleza de los cuadros sintomatológicos y sindrómicos. Métodos. Estudio descriptivo, transversal. Se estudiaron las interconsultas recibidas por la Unidad de Psiquiatría de Emergencia del HNGAI, entre julio y diciembre del 2022. Se aplicó un análisis factorial de los síntomas. Resultados. En 1037 pacientes vistos en interconsulta, la edad promedio fue 41,15 ± 23,52 años. El 65,2 % fueron mujeres. La tasa de derivación fue de 1,18 %. Los trastornos más frecuentes fueron los del humor (27,8 %); los síntomas más frecuentes fueron el afecto ansioso (47,3 %), insomnio (38,8 %) y ánimo depresivo (32,6 %). Con respecto al tratamiento, el más usado fueron los antipsicóticos (50,4 %). El análisis factorial exploratorio de los síntomas mostró siete factores o componentes sindrómicos importantes: psicótico, delirium, depresivo-suicida, obsesivo-compulsivo, negativo, apático, ansioso. Conclusión. El paciente típico de esta muestra fue mujer al inicio de su cuarta década de vida. Los trastornos del humor y los síntomas ansiosos fueron los más comunes. El análisis factorial exploratorio mostró la presencia de siete síndromes. Es necesario incrementar la recopilación sistemática de datos e inversión en investigación en psiquiatría de emergencia, todo con la finalidad de mejorar la atención que se brinda a estos pacientes.
Scientific production of trachoma worldwide: a bibliometric analysis during the period 1886 to 2022
Authors: Aquino-Canchari Christian Renzo , Chavez-Bustamante Sarai Gloria , Zarate-Chavez Milie Lizet
Published: April 2024

Estimado Editor,
El tracoma es la principal causa infecciosa de ceguera evitable en todo el mundo (1). La bacteria Chla-mydia trachomatis lo causa y se caracteriza por cambios inflamatorios a nivel de la conjuntiva en niños con posterior cicatrización, opacidad de la córnea y ceguera en adultos. Se considera un problema de salud pública en 42 países (en junio de 2022). Es endémica en las zonas más pobres, desfavorecidas y rurales de África, América Central y del Sur, Asia, el Pacífico Occidental y Oriente Medio (2).
Cultivo de fresa (Fragaria ananassa Duch.) en sistemas hidropónicos con mezclas de sustratos
Authors: Cerero Cruz Luis , Velasco Velasco Vicente Arturo , Sandoval Villa Manuel , Ruiz Luna Judith , Enríquez del Valle José Raymundo
Published: April 2024

El cultivo de fresa puede establecerse en campo abierto o bajo condiciones controladas, mediante invernaderos, macrotúneles y sistemas hidropónicos. Estos últimos permiten obtener productos de mejor calidad y aumentar la eficiencia del uso de agua y fertilizantes. Existen diversos diseños de sistemas hidropónicos y sustratos en los que se han evaluado cultivos hortícolas para hacer eficiente el uso del espacio con resultados limitados para algunos sistemas. El propósito de este estudio fue evaluar variables agronómicas que influyen en el crecimiento de plantas de fresa (Fragaria ananassa Duch.) variedad Albión, en tres 3 sistemas hidropónicos con 4 mezclas de sustratos en invernadero. Se estableció un diseño experimental completamente aleatorio con arreglo factorial 3 x 4, esto es, 3 sistemas hidropónicos (piramidal, vertical y horizontal) y 4 mezclas de sustratos (fibra de coco+turba+perlita; fibra de coco; fibra de coco+perlita; y olote). Igualmente, se aplicó solución nutritiva de Steiner al 100 % en sistema cerrado. En el sistema horizontal, la biomasa (16.71 g), la altura de planta (20.04 cm), el diámetro de corona (21.40 mm), el número de hojas (17.72) y de coronas (4.51), el volumen de raíz (14.05 ml) y el área foliar (603.09 cm2) mostraron significativamente (Duncan, p ≤ 0.05) mayores valores respecto a los sistemas vertical y piramidal. La mezcla fibra de coco + turba + perlita mostró considerablemente el valor más alto de las variables evaluadas. Las plantas de fresa expresaron su mayor crecimiento y desarrollo vegetativo en el sistema hidropónico horizontal con la mezcla de fibra de coco+turba+perlita.
Health E-stat: Maternal mortality rates in the United States, 2022
Authors: Hoyert Donna L.
Published: April 2024

This report provides health data from the National Center for Health Statistics.
Pojęcie interdyscyplinarności w pracy socjalnej. Integrująca rola pedagogiki w budowaniu teorii pracy socjalnej
Authors:   Uniwersytet Opolski, Waga Leszek
Published: April 2024

The aim of the article is to show the presence of the concepts of interdisciplinarity, multidisciplinarity and heterogeneity in scientific texts in the field of social work, to compare the methodological status of social pedagogy and social work as areas of scientific knowledge also created thanks to interdisciplinary research, and to propose the postulate of the superiority of the pedagogical epistemological and methodological perspective in building theoretical foundations. social work. It was pointed out that social pedagogy, both in the historical, institutional and subject and content aspects, is closely related to the basics of social work. Taking into account the scope of issues analyzed by social work and its methodological and historical conditions, a structured way of understanding the concept of interdisciplinarity of social work and locating it in the area of social pedagogy was proposed, calling the process of this location subdisciplinarization of social work. The problems discussed in the article are of a meta-theoretical and meta-methodological nature, and the main source of the research are texts on the basics of pedagogy and social work.
ENERGY AND EXERGY ANALYSIS OF DOUBLE PIPE MINI-TUBE HEAT EXCHANGER
Authors: Gelis Kadir , Özbek Kadir , Mermer T.
Published: April 2024

Global population growth and the resulting rapid depletion of energy resources make attaining sustainability
of energy resources difficult. By reducing size, weight, and costs, more effective and sustainable systems can be developed, and resource consumption reduced. Mini-channel heat exchangers ensure higher heat transfer than macrochannel heat exchangers because of the volume and surface effect factor. Furthermore, the performance of heat exchangers can be increased by suspending nanosized
particles in the base heat transfer fluids. In this study, a concentric mini-tube heat exchanger was designed and manufactured, and energy-exergy analyses were made. Multi-walled carbon nanotube (MWCNT)-water nanofluid prepared at various volume concentrations (0.1%, 0.2%, 0.3%) and used as a working fluid. The heat transfer performance of the concentric mini-tube heat exchanger was evaluated using the effectiveness coefficient–number of transition units (ε-NTU) method. The relationship between ε, NTU, Reynolds number, and dimensionless exergy is investigated. Effectiveness (ε), NTU, and dimensionless exergy (e) values were calculated in the range of five different Reynolds values (5000-25,000) for water and nanofluids prepared at three different volumetric concentrations. The use of nanofluids as a working fluid was found to increase the ε and NTU values while decreasing
the dimensionless exergy value.
FEATURES OF DIGITALIZATION IN OLD INDUSTRIAL REGIONS OF RUSSIA
Authors:   Institute of Economics of RAS, Sorokina N.Yu.
Published: April 2024

The relevance of the study is determined by the fact that, despite the high level of differentiation in the development of digital technologies, the features of the digital transformation of Russian regions are insufficiently covered in economic periodicals. The purpose of the study is to study the indicators of the digital economy and identify the features of digitalization in the old industrial regions of Russia. The research is based on a scientific and methodological approach to assessing the use of digital technologies in the regions of Russia, developed by scientists of the Institute of Economics of the Ural Branch of the Russian Academy of Sciences. It is shown that the old industrial regions differ in the achieved values of the indicators of the digital economy, while the leadership of the region in the factor indicators of the digital economy is a necessary, but not sufficient condition for its leadership in the indicators characterizing the results of digitalization. It is argued that the more technologically advanced old industrial regions are leading in the use of advanced digital technologies. It is shown that significant regional differences in digitalization indicators indicate the risks of "digital inequality". The necessity is substantiated and the main directions of the differentiated regional policy of the federal center in the field of digital economy are determined, taking into account the peculiarities of digitalization in various types of old-industrial regions of Russia.
OPTIMIZATION OF THE GUARANTEED RESULT OF PROGRAM TERMINAL MANAGEMENT OF ENTERPRISE PRODUCTION
Authors:   Institute of Economics of the Ural Branch of RAS, Shorikov A.F.
Published: April 2024

The paper considers the problem of optimizing the guaranteed result (minimax approach) of managing the production of the enterprise's products. To model the dynamics of the control process under consideration, it is proposed to use a new model in the form of a system of linear discrete-timerecurrent equations. The basic parameters of the developed model are the phase vector of the control object (enterprise), the demand vector for the enterprise's products, the control action vector and the vector that describes a priori uncertain risks (disturbances) that arise in the process of production of the enterprise's products. The article describes the formalization of the problem of optimizing the guaranteed (minimax) result of program terminal management of production of the enterprise's products in the presence of a convex objective function and risks. For the problem under study, a constructive method for solving it is given, which can serve as the basis for the development of an appropriate numerical algorithm.
INVESTIGATION OF MECHANICAL AND PHYSICAL PROPERTIES OF DATE PALM STEM FIBRE REINFORCED EPOXY COMPOSITES
Authors: S. Mathu Kumar , R. Rejikumar , Anand Mini Jose , M. Mohamed Shebu
Published: April 2024

The growing demand for sustainable materials, particularly date palm stem fibre (DPSF), has garnered attention in the area of engineering applications due to its advantageous traits. Its composites offer distinctive characteristics such as satisfactory mechanical properties, low density and a cost-effective production. This study examines the mechanical characteristics of epoxy (LY-556) composites reinforced with DPSF. A range of composite configurations with different compositions and fibre loadings were meticulously crafted, using a hand lay-up technique. The research meticulously examines DPSF and epoxy composites with loadings of (10, 15, 20, and 25) w/%, comprehensively characterizing their flexural, tensile, impact and water-absorption behaviours. Across the varied compositions, the characteristics of flexural strength, tensile strength, impact strength and water absorption are thoroughly analysed. The conclusive findings underscore optimal enhancements in the flexural, tensile and impact strengths achieved with the DPSF loading of 20 %. This empirical understanding bears significance for designing natural fibre reinforced composites with superior mechanical attributes, reaffirming DPSF’s potential as a valuable reinforcement in modern engineering applications.
THREE-DIMENSIONAL MODEL OF EQUIVALENT ROLL GAP OF CVC MILL UNDER CONDITIONS OF ROLL CROSSING AND NO LOAD
Authors: Ma Xiaoxin , Yuan Peisen , Li Fuyi , Ji Jiang
Published: April 2024

Traditional roll technologies focus solely on the contour of the roll gap at the outlet under ideal conditions. However, upon roll crossing, the three-dimensional distribution of the deformation zone becomes asymmetrical, leading to an adverse impact on the rolling pressure in the deformation zone. To study the screw-down load deviation of plate mills, it is necessary to accurately calculate the equivalent three-dimensional roll gap in the deformation zone under roll-crossing conditions. In this paper a model for calculating the equivalent three-dimensional roll gap under the conditions of roll crossing and no load was established based on the method of the coordinate nonlinear transformation of the spatial rectangular coordinate system. Based on this model, the influences of roll-crossing angles and translation parameters on the symmetry of the equivalent three-dimensional roll gap were analyzed. The distribution of the three-dimensional equivalent roll gap was calculated with different roll lengths, roll radii, and the roll gap’s nominal thickness. The intuitive contour map reveals that under the same condition of crossing angle and translation parameters, the larger the roll length and roll radii and the smaller the roll gap’s nominal thickness are, the greater the influence of the roll crossing on the asymmetrical distribution of roll gap is. It put forward a quantitative calculation method for evaluating the symmetrical distribution of the roll gap, and the calculation results can provide the equivalent roll profile for the roll-deformation model.
MICROSTRUCTURE CHARACTERISTICS OF Cr3C2-NiCr COATINGS DEPOSITED WITH THE HIGH-VELOCITY OXY-FUEL THERMAL-SPRAY TECHNIQUE
Authors: Lauzuardy Jason , Agus Basuki Eddy , Martides Erie , Septianissa Selly , Prawara Budi , Dedi  , Junianto Endro , Riyanto Edy
Published: April 2024

With the goals of protecting boiler tubes from hostile surroundings, increasing thermal efficiency, and minimizing time losses from damage, thermal-spray coating methods for high-temperature operations were created. Ceramic-metal composite materials (e.g., Cr3C2-NiCr) are well known for protecting components from erosion decay in a high-temperature environment. In this investigation, the high-velocity oxy-fuel (HVOF) thermal-spray technique was employed to successfully deposit several variations of feedstocks containing Cr3C2-NiCr and NiCr powders onto a medium-carbon steel substrate, with and without filtering through a 400-mesh screen. Utilizing X-ray fluorescence (XRF), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD), the microstructure features of the deposited coatings were assessed. The experiment results demonstrate that the crystallite and grain sizes of the deposited coatings can be increased by reducing the powder size through a sifting process using a 400-mesh sieve. This procedure also resulted in a coating with a higher density and lower porosity. Furthermore, new compounds including Cr2O3 and MnCr2O4 were formed in the coating layers as indicated by the XRD spectra. These phenomena are in good agreement with the EDS mapping of Cr and O, which reveals highly similar distributions. Manganese was originally a part of the substrate composition. Manganese could diffuse rapidly across the Cr2O3 layer and form the MnCr2O4 compound, indicating the manganese diffusion from the substrate into the Cr3C2-NiCr coating. The formation of MnCr2O4 can be attributed to the prior emergence of the Cr2O3 compound.
Percepción docente sobre el fenómeno de la neuroeducación en una institución pública de Colombia
Authors: Ensuncho Hoyos Carlos Federico
Published: April 2024

The general purpose of this study, product of a research process at doctoral level, was to know the teachers’ perception of neuroeducation. For this purpose, theinterpretative paradigm was used, following the qualitative strategy proposed in the grounded theory in order to generate knowledge through the process ofunderstanding and interpreting neuroeducation in 8 teachers in their educational context. Accordingly, this research used in-depth interviews and participant observation as techniques. For data processing, the analytical strategies of the inductive thematic analysis software, Atlas/ti and content analysis were used. For the validation of the collection instruments, we proceeded to the judgment of three experts with doctoral degrees was used to evaluate criteria related to the wording, relevance, sufficiency and coherence. Among the findings, significant results were found for the teaching work and for the teaching-learning process in a public institution in the city of Monteria, Colombia. In the first place, information was generated on the current role of neuroeducation in educational processes and practices, and, secondly, different perspectives related to the pedagogical task were generated, making possible a different view and meaning in the teachingpractice based on the evidence provided by neuroeducation, creating spaces for reflection, self-criticism and feedback of the pedagogical task of teaching. It is concluded that there is little knowledge and mastery in the pedagogical practice of teachers about neuroeducation and it is recommended a change in teaching strategies, where didactic tools based on the way the brain learns are approached.
El pensamiento computacional como soporte del pensamiento matemático, en la Institución Educativa Santo Domingo Savio de Chinchiná (Caldas, Colombia)
Authors: Argoti Alvarez Julio Alexander
Published: April 2024

The present research evaluated the improvement of mathematical thinking, from a computational skills intervention in eighth grade adolescent students of the Santo Domingo Savio Educational Institution of Chinchiná (Caldas-Colombia), of socio-economic stratum 1, 2 and 3, with ages between 12 and 17 years old. The work was prepared in the years 2020 and 2021, it was conceptually based on Computational Thinking proposed by Jeannette Marie Wing, for the process it was considered as the independent study variable and the Theory of Cognitive Development of Jean William Fritz Piaget was referenced, specifically on mathematical thinking, which in the study is the dependent variable. The research developed is of a quasi-experimental type, with an intentional nonprobabilistic sampling, we worked with experimental groups, one group for each year, to whom the “intervention program” was applied for four months; Before and after the intervention program, pretest and posttest tests were applied, using international tests called the “Binet-Simón and Wechsler mathematical intelligence test,” for the purposes of comparing evidence. Finally, through hypothesis tests, using the normal and Student’s t distributions, it is concluded that computational thinking (independent variable) has a statistically significant effect on the improvement of mathematical thinking (dependent variable).
Alfabetización histórica y enfoque didáctico narrativo con un sentido Crítico
Authors: Rodríguez Morales Jorge Andrés
Published: April 2024

The purpose of this article is to outline the importance of a historical literacy with a narrative approach provided with a critical sense. It begins by characterizing conceptual aspects of school literacy and disciplinary literacy; In the same way, the treatment of historical literacy in the school domain is characterized, especially with regard to the didactic use of narrative writing. It continues to highlight the relevance of applying the narrative approach to address expressions of the historiographical genre that claim the narrated lifeof the subjects; and it is justified that The New Studies of Literacy and critical literacy, in addition to providing didactic tools in this sense, these can favor the mobilization of interests for social transformation from the knowledge of history and community literacy practices.
Regulação sistêmica da saúde pública, reserva da administração e juízo técnico da ANVISA na jurisprudência do Supremo Tribunal Federal
Authors: Guerra Sergio
Published: April 2024

Este artigo tem por objeto investigar a constitucionalização do sistema único de saúde e a sua evolução sob a ótica normativa num ambiente de alta complexidade sistêmica. Examinar-se-á o modelo de governança proposto pelo Presidente da República, por medida provisória, e disciplinado pelo Congresso Nacional com a criação da Agência Nacional de Vigilância Sanitária - ANVISA. A partir das competências regulatórias da agência reguladora, a pesquisa investigará os dois casos que foram submetidos ao Supremo Tribunal Federal em sede de Ação Direta de Inconstitucionalidade, por meio dos quais foi questionada a juridicidade de leis que tiveram por objetivo substituir escolhas técnicas materializadas em normas expedidas pela ANVISA.
Linguistic profiling of text genres: adventure stories vs. textbooks
Authors:   Text Analytics Laboratory, Kazan Federal University, Solnyshkina Marina I. , Kupriyanov Roman V. ,   Kazan National Research Technological University, Shoeva Gulnoza N. ,   Text Analytics Laboratory, Kazan Federal University
Published: April 2024

In this article we test the hypothesis that genre-inherent quantitative linguistic parameters can be reduced to a list of few provided with strictly defined ranges of value. The current research as part of a large project is aimed at contrastive analysis of textbooks on History and Social Studies, and adventure stories. Using RuLingva[1], we identified 18 genre variables, computed their frequencies and employed the Kruskal-Wallis H Test to evaluate the differences significance. The results suggest that the list of the most indicative parameters include sentence length, noun genitive case, future tense, ratio of verbs to nouns, provisionally called ‘narrativity’, and frequency. All the identified parameters have statistically significant differences and three of them (sentence length, genitive noun, and “narrativity”) are implemented in non-overlapping “genre-inherent” ranges of values attributed to (a) History and Social studies textbooks and (b) adventure stories. With the view that the target audience of adventure stories are not expected to demonstrate high levels of professional training but logical skills, we argue that the relatively stable readability of adventure stories, i.e. FKGL = 8-9, can also be attributed to the genre-inherent characteristics. Our results certify that incorporating text complexity indices improve the classification performance of genre quantitative analysis. We also offer our views on linguistic and statistical aspects of the proposed approach for future studies. Further research is needed to see how the same parameters are exploited in texts of other genres and subject domains.
Wordiness in academic writing: a systematic scoping review
Authors:   MGIMO University, Tikhonova Elena V. , Mezentseva Daria A. ,   Russian Biotechnological University
Published: April 2024

Background: Excessive use of empty words in academic texts is a significant impediment to effective communication, often complicating the clarity and reducing the comprehensibility of scholarly writing. Purpose: This systematic scoping review investigates the nature, causes, and consequences of excessive use of empty words, alongside strategies for mitigating this issue in academic writing, differentiating between the nuanced connotations of ‘verbosity’ and ‘wordiness’. Methods: Employing a detailed search strategy, the review engaged two electronic databases – Scopus and Google Scholar, initially identifying 256 studies. Employing the PRISMA-ScR protocol and the ‘PCC’ mnemonic (Population, Context, Concept) for inclusion and exclusion criteria, 30 English-language studies directly addressing the excessive use of empty words and strategies for reduction were included. Results: The synthesis of the selected research revealed that while the excessive use of empty words is widely recognized as a challenge for authors and academics, the problem remains underexplored. The analysis clarified the distinction between ‘verbosity’ and ‘wordiness’– terms often used interchangeably but with distinct implications for academic writing. Key factors contributing to this issue include complex sentence structures, unnecessary nominalizations, and the use of redundant phrases or overly complex vocabulary. Effective strategies for reducing excessive wordiness involve simplifying sentence constructions, employing more direct language, eliminating redundancy, and strategically using verbosity for positive rhetorical effects. Conclusion: The review emphasises the importance of awareness and strategic management of empty word usage in academic texts to enhance readability and engagement. By adopting a critical approach to the elimination of unnecessary verbiage, authors can significantly improve the quality of academic writing.
Heterophase phenomena of tritium fractionation in water systems
Authors:   Gomel State Technical University, Shablovsky Yaroslav О.
Published: April 2024

Tritium is the only one of the radioactive isotopes that a filtering system is unable to neutralize. It is produced by collateral fission processes in nuclear reactors and displays itself in radioactive wastes and effluents in different forms of tritium oxides. Thus the development and application of nuclear energy entails a challenging problem of treating tritium-containing radioactive wastewater. The paper deals with tritium water isotopologues, namely, with prototritium water and deuterotritium water. Various approaches to the problem of tritium separation have been outlined. The choice of the appropriate process of water detritiation depends, first of all, on whether the detritiated water is recycled back to the reactor system or is discharged to the environment and on whether molecular tritium is to be extracted for further application. Special attention is paid to the process of electrosonochemical water detritiation which is shown to be the preferential one due to its ability to provide molecular tritium. Tritiated water decomposition should be preceded by its concentrating, the latter being two-stage and including water conditioning followed by providing concentrated tritiated water. Reverse-osmosis conditioning and salt rectification are considered as preferential techniques.
Proposals for improving a non-invasive method for estimating abundance of mouse-like rodents and shrews in urban areas
Authors:   Institute of Plant and Animal Ecology Ural Centre RAS, Tolkachev Oleg V. , Malkova Ekaterina A. ,   Institute of Plant and Animal Ecology Ural Centre RAS, Maklakov Kirill V. ,   Institute of Plant and Animal Ecology Ural Centre RAS, Kuvaeva Ekaterina I. ,   Institute of Plant and Animal Ecology Ural Centre RAS
Published: April 2024

Previously we proposed a new reconnaissance method for estimating the total abundance of small mammals in urban areas. The method includes placing plastic bottles with bait inside equal distances apart. In this research we examined two ways to improve the method: using bottles of smaller volume (0,25 liters instead of 0,5 liters) to increase the ergonomics and using opaque bottles to make them more attractive for animals. Bigger and smaller bottles with neck diameter of 38 mm were fastened in pairs which were set in a transect with a five-meter spacing. The same was done with pairs of opaque and transparent bottles. A bait (rye bread with unrefined sunflower oil) was put into all the bottles. During the following days we recorded animals’ visits into the bottles. It was found out that there are no significant differences in how often animals attend bottles of 0,25 liters and 0,5 liters, the same results were received for both transparent and opaque bottles. Thus, the simple method for estimating abundance of small mammals may be optimized by using smaller bottles, the colour of which is not important.
A new subspecies of gelechiid moths from the genus Neofriseria (Lepidoptera, Gelechiidae) from the Lower Volga Region (Russia)
Authors:   Independent researcher, Piskunov Vladimir I. , Anikin Vasily V. ,   Saratov State University, Derzhinsky Yevgeny A. ,   Vitebsk State University named after P. M. Masherov
Published: April 2024

The article provides a brief analysis on the species composition of microlepidopteran genus Neofriseria Sattler, 1960 (Gelechiidae) of the fauna of Russia and some neighboring countries. A list of six species of this genus known for the territory of Russia at present is given. One species of the genus, previously described only relating to males from Greece, is recorded for Russia (Saratov region) firstly as a new subspecies with a description and illustrations of the genital structures of both sexes. Differences in the structure of the male genitalia between the nominative subspecies and N. b. volgensis Piskunov et Anikin, ssp. n. were analysed.