bluuebunny/crossref_metadata_2025 huggingface dataset:
Translating Paratexts in Digital Media: Exploring Problems and Strategies
Authors: Mudarra Arwaa Al
Published: February 2025

This study aimed to explore the problems and strategies of translating paratexts in digital media through content analysis, comparing the English and Arabic paratextual elements of six media digital sources, including the BBC News website, Al Arabiya blog, and Reuters forum. The study identified several translation problems, including culturally specific terms, cultural references, conflicting verbal and paratextual components, and reframing the narrative functions of paratexts. The emergent themes revealed that 97% of the problems were attributed to terminology and lexical choices, whereas 83% were related to the integration of visual elements. Themes of cultural adaptation for governing the content of paratextual elements and reframing the narrative functions of paratexts each reached 80%. The emergent themes also revealed the strategies that translators use to address the translation of paratexts. These strategies include employing the translation adaptation approach (95%), applying functional translation (90%), using thematic analysis for intralinguistic subtitles (87%), using multimodal transcription (85%), and using transposition (82%). The study recommends replacing cultural references, idioms, or symbols with equivalents that resonate with the target audience. Functional equivalence ensures that translated paratexts serve the same purpose in the target language, adhering to cultural norms. The study highlights the distinction between traditional criteria for identifying paratexts and the functionality of translation in identifying digital paratexts. Understanding functional equivalence dynamics can help translators produce high-quality translations for the digital era. Thus, the study contributes to the fields of translation studies, translation and culture studies, and translation and information technology.
How AI Is Ushering in a New Era in ELT: Teachers’ Perspectives
Authors: Mishu Anjum , Ahamed Md. Mostaq , Akan Md. Faruquzzaman , Abdul-Rab Salahud Din , Chowdhury Gaus , Ahmad Javed , Sultana Irin
Published: February 2025

The full potential and practical applications of an Artificial Intelligence-based language teaching and learning scenario still need to be fully understood. Previous studies have focused on theoretical concepts and specific tools or features, leaving gaps in understanding AI’s overall impact and effectiveness from EFL teachers’ perspective. Therefore, this study explores AI’s potential for teaching, learning, and professional development in teaching English as a foreign language (EFL)/English as a second language (ESL). This quantitative study closely evaluated the opportunities and obstacles of AI in English Language Teaching (ELT) to gauge its transformative potential. This study would substantially contribute to the ongoing debate on the role of AI in teaching English through a comprehensive analysis of such factors along with the primary data collected through a semi-structured questionnaire. The study shows that AI-powered engagement strategies can transform education and training for EFL/ESL students and teachers. Therefore, its implementation is important. The participants believed that even if the application of AI in ELT has many disadvantages, AI benefits teachers' professional development and learners' academic achievement. This study can help teachers and policymakers make informed choices about using AI tools in ELT.
Predicting viscosity and yield surfaces for Bingham fluids in a lid-driven cavity employing a deep neural network
Authors:   Applied Computing Graduate Program, Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil, Cunegatto Eduardo Henrique Taube , Zinani Flavia Schwarz Franceschini ,   Institute of Hydraulic Research, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, Rigo Sandro Jose ,   Applied Computing Graduate Program, Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil
Published: February 2025

Computational Fluid Dynamics (CFD) simulation of viscoplastic fluid flows is challenging. It is critical to capture the shape of the yield surfaces that limit yielded and unyielded flow regions. These are highly sensitive to numerical schemes, which usually rely on calculating velocity derivatives and require highly refined computational grids and strict convergence criteria. In this work, CFD and Deep Neural Networks (DNN) were coupled to develop a model to predict yield surface morphologies for the flow of Bingham fluids in a square cavity. Our main goal is to predict the behavior of viscoplastic fluids using a Machine Learning (ML) approach based on CFD results. Design of Experiments techniques were employed in defining the base cases, i.e., combinations of Bingham and Reynolds numbers (Bn and Re) to compose the DNN training data. The DNN predicted the viscosity fields in the problem domain given Bn and Re. These results were postprocessed using masks to create binary images. The chosen architecture was an encoder-decoder since the input and output data had different dimensions. The results of the surrogate model were adequate, giving a Mean Squared Error of 0.0015 for the training data and 0.002 for the testing data. The DNN-predicted images were consistent with those generated from CFD, corroborating the proposed technique as an excellent alternative to be implemented in more complex applications. The combination of CFD and ML is a promising alternative for predicting complex fluid behavior in diverse and challenging scenarios with faster and computationally less expensive resources.
Renewable Energy Revolution: Transforming Africa’s Energy Landscape through Solar, Wind, and Hydropower
Authors:   Department of Science Laboratory Technology, University of Calabar, Calabar, Nigeria, Eyime Eyime , Ushie Ogri
Published: February 2025

This study examines how the plentiful solar, wind, and hydroelectric resources in Africa are transforming the continent's energy landscape. Africa faces significant challenges in achieving energy access and sustainability due to the growth of its population and urbanization. This analysis analyzes the transformational capacity of renewable energy, emphasizing pioneering initiatives like Morocco's Noor Ouarzazate Solar Complex and Kenya's Lake Turkana Wind Project. We examine the economic advantages of decentralized energy systems, such as mini-grids and pay-as-you-go solar solutions, which have empowered millions and invigorated local economies. Progress in hybrid systems and energy storage technologies is essential for improving grid stability and dependability. The success of this revolution depends on strong legislative frameworks, new financial structures, and regional collaboration to address infrastructural deficiencies and regulatory obstacles. This assessment highlights the need for inclusive strategies that include local people and tackle environmental issues related to large-scale projects. Africa is positioned to lead in renewable energy, underscoring the critical need for collaboration among governments, corporate sectors, and foreign partners to facilitate this transition. By using its extensive renewable resources, Africa may attain energy security, economic development, and environmental sustainability, therefore fostering a resilient future.
Candidate SNP markers of changes in the expression levels of the human SCN9A gene as a hub gene for pain generation, perception, response and anesthesia
Authors: Dotsenko P. A. , Zolotareva K. A. , Ivanov R. A. , Chadaeva I. V. , Podkolodnyy N. L. , Ivanisenko V. A. , Demenkov P. S. , Lashin S. A. , Ponomarenko M. P.
Published: February 2025

In this work, we for the first time performed a comprehensive bioinformatics analysis of 568 human genes that, according to the NCBI Gene database as on September 15, 2024, were associated with pain generation, perception and anesthesia. The SCN9A gene encoding the sodium voltage-gated channel α subunit 9 and expressed in sensory neurons for transferring signals to the central nervous system about tissue damage was the only one involved in all the processes of interest at once as a hub gene. First, with our tool called OrthoWeb, we estimated the phylostratigraphic age indices (PAIs) for each of the genes, that is, identified the taxon of the most recent common ancestor of the organisms for which that gene has been sequenced. The mean PAI for all genes under study, including SCN9A as a hub gene for pain generation, perception, response and anesthesia, was ‘4’. On the evolutionary scale by the Kyoto Encyclopedia of Genes and Genomes (KEGG), the ancestor is the phylum Chordata, some of the most ancient of which evolved the central and the peripheral nervous system. Next, with our tool called ANDSystem, we found that phosphorylation of ion channels is a centerpiece in pain generation, perception, response and anesthesia, on which the efficiency of signal transduction from the peripheral to the central system depends. This conclusion was consistent with literature data on a key role an efficient signal transduction from the peripheral to the central system from the peripheral to the central system for adjusting the human circadian rhythm through detection of a change from the dark of night to the light of day and for identification of the direction of the source of sound by auditory brainstem nuclei, for generating the response to cold stress and for physical coordination. 21 candidate SNP marker of significant SCN9A over- and underexpression. Finally, the ratio of SCN9A upregulating to downregulating SNPs was compared to that for all known human genes estimated by the 1000 Genomes Project Consortium. It was found that SCN9A as a hub gene for pain generation, perception, pain response and anesthesia is acted on by natural selection against its downregulation, to keep the nervous system highly informed on the status of the organism and the environment.
An Identification of Learning Motivation and Learning Outcomes in Vibration, Wave, and Light Materials
Authors: Meitaza Dariah , Wiyono Ketang , Marlina Leni , Sriyanti Ida
Published: February 2025

The research aims to identify the learning motivation and learning outcomes of SMPN 7 Padang students in terms of vibration, wave, and light materials. The research was conducted after the learning occurred. The subjects in this study were 128 students from 4 classes, namely classes VIII.1, VIII.2, VIII.3, and VIII.8. To determine students' learning motivation, researchers distributed questionnaires using a Likert scale, while student learning outcomes were taken from daily assessments at the end of the chapter on vibrations, waves, and light. The results obtained from this research are student learning motivation is classified as moderate, and the category of student learning outcomes is also classified as moderate. Indicators of student learning motivation are (1) the desire and desire to succeed in learning, (2) the existence of encouragement and needs in learning, (3) the existence of hopes and ideals for the future, (4) the existence of interesting activities in learning and (5) the existence of a conducive learning environment while learning outcomes were calculated using the completeness criteria for science lessons on vibration and wave material. Based on the research results conducted at SMPN 7 Padang, the most influential indicator is interesting learning activities. Teachers can increase student learning motivation from moderate to high if they carry out interesting activities. Students with high learning motivation have a greater chance of obtaining better learning outcomes than those with low motivation.
Development of STEM-based Worksheets on Global Warming to Improve Students' Scientific Reasoning Ability
Authors: Palian Yolanda Oktavia , Efwinda Shelly , Damayanti Puardmi
Published: February 2025

Scientific reasoning is a thinking skill that students need in the 21st century to prepare them for global challenges. The research aims to develop STEM-based worksheets (Science, Technology, Engineering, and Mathematics) on global warming, which is expected to improve students' scientific reasoning skills. This research includes the Research and Development (R&D) method. This research describes the validity of the worksheet conducted by two Physics Education study program experts. The results show that the STEM-based worksheet is very valid, averaging 93.29%. Thus, the STEM-based worksheet on the topic of global warming that has been designed can be used in high school learning to improve students' scientific reasoning skills.
Analysis of the UtilizationUtilization of a Learning Management System Based on the Independent Curriculum in Physics Education at Sikka Coastal Schools
Authors: Hikmatiar Hamzarudin , Al Farizi Zakaria , Hamsa Berlian , Nurlina Nurlina , Jufriansah Adi , Jayadin Jayadin
Published: February 2025

Online learning has emerged as a dominant trend since the onset of the COVID-19 pandemic, leading to significant changes in the educational landscape. Numerous studies have examined using learning management systems (LMS) in educational settings. However, few have addressed the urgency of implementing LMS and the specific challenges coastal schools face. To explore these challenges, the researcher conducted a qualitative, descriptive study to analyze the use of LMS, focusing on a case study of high schools in Sikka Regency. The study involved nine schools, namely SMAN Pemana, MAS Nurwahid Gunung Sari, MAS Muhammadiyah Nangahure, MAS At-Taqwa Beru, SMA Muhammadiyah Maumere, SMAN Magepanda, SMA 1 Talibura, SMKN Talibura, and SMAN 1 Waigete. Data were collected through interviews with nine physics teachers. The research data were then analyzed using NVivo software to obtain quantitative percentages. The findings indicated that all participating schools utilized LMS, with the majority adopting Google Classroom. However, the most significant challenge identified was internet connectivity, with over 50% of the schools acknowledging this issue. Additionally, many students lacked smartphone access, particularly at MAS Muhammadiyah Nangahure, where nearly 2% of students did not own a smartphone, compared to approximately 5% at similar schools. Other challenges included the lack of internet data and limited understanding of technology among students. The most common concern reported by schools was the inflexibility of LMS platforms, particularly concerning their dependence on internet connectivity. For instance, SMAN Pemana noted a 4.8% incidence of issues related to the LMS they were using. Given these obstacles, many schools have turned to alternative solutions to support online learning, such as WhatsApp Groups, which 80% of the schools employ.
Enhancing Student Learning Motivation Through Interactive Augmented Reality-Based E-Modules on Global Warming
Authors: Rifa'i Ahmad , Aviyanti Lina , Sari Ika Mustika , Gani Amalia Weka , Salam Abdul , Khairunnisah Khairunnisah
Published: February 2025

The students' learning motivation in high school is still relatively low to participate in physics learning. This research aims to enhance students' learning motivation using Augmented Reality (AR)-based interactive E-Modules in physics learning on global warming materials. The method used is pre-experimental, with the design of one pretest-posttest group and analysis techniques using the Rasch stacking model. The research sample comprised 36 students in class X at Sukabumi City High School. The data collection instrument is in the form of a learning motivation questionnaire that three lecturers have validated. The analysis showed that all students experienced increased positive learning motivation. The use of AR-based interactive E-Module was able to increase the learning motivation of students in the medium category by 64% (23 students), the high category by 11% (4 students), and the low category by 25% (9 students). These findings show that AR technology in physics learning can significantly increase students' motivation to learn and increase their engagement and understanding of physics subjects. Thus, AR technology has the potential to be an effective tool in more interesting future learning methods, especially in complex subjects such as physics.
Aspiring for inclusive sport: reflecting on intersections around exclusion
Authors: Gopal Meena
Published: February 2025

This paper attempts to address the intersections of gender, caste, class, sexuality, region, and other social attributes, that constitute the social web in India influencing the possibilities and exclusions within sport. Being at the margins of this social web makes individuals vulnerable to unethical practices such as discrimination, exclusion, and erasures of their lived realities, by both systemic and everyday practices. Using the lens of social reproduction the paper attempts to capture not just the productive work that sustains a sporting milieu in society, but the labour that produces leisure, entertainment, play, rest, fitness, pleasure, well-being, and care that sustains and is further generated by families, communities and entire societies. It examines the social identities/locations of being queer and located in caste society, as specific instances but also as intersecting with other social locations that may exclude or offer opportunity within a specific sport.
Pengaruh Ukuran Perusahaan, Profitabilitas, Likuiditas, dan Umur Perusahaan Terhadap Islamic Social Reporting
Authors: Musthofa Hadi  , Prihatni Rida , Susanti Santi
Published: February 2025

This study aims to determine the effect of company size, profitability, liquidity, and company age on Islamic Social Reporting (ISR). The study utilizes quantitative methods and employs regression analysis to analyze data collected from purposive sampling and use non participant observation. The results of the study indicate that the company size has impact ISR practices, profitability has impact ISR practices, liquidity has not impact ISR practices, company age has impact ISR practices.
Ömer Menekşe, Osmanlı’da Hırsızlık [Sebepleri ve Önleyici Tedbirler], İlahiyat Yayınları, Ankara, 2024
Authors: Gümüş Böke Emine
Published: February 2025

Ömer Menekşe’nin “Osmanlı’da Hırsızlık” çalışması genelde hukuk tarihi ve hukuk sosyolojisi özelde ise Osmanlı hukuk tarihine dair bir araştırmadır. Eser, Osmanlı döneminde hırsızlığa teşebbüs eden bireyleri caydırmaya ve kamu düzenini sağlamaya yönelik iktisadî ve sosyal tedbirleri incelemesi bakımından Osmanlı hukuk tarihi alanına katkı sağlayan bir çalışmadır. Bu çalışmada müellif geniş bir coğrafyaya yayılmış olan ve bünyesinde farklı ırk ve dinlerden birçok unsuru barındıran Osmanlı devletinde hırsızlık suçu ve cezasını, bu suça yol açan nedenleri ve alınan önleyici tedbirleri ele almış ve bu tedbirlerin söz konusu suçu engellemede ne derece başarılı olduğunu sergilemiştir.
ORDOVICIAN BIOSTRATIGRAPHY AND VOLCANISM OF SALAIR
Authors: Sennikov N.V. , Lykova E.V. , Obut O.T. , Tokarev V.N. , Timokhin A.V. , Shcherbanenko T.A. , Zakiryanov I.G.
Published: February 2025

Litho- and biostratigraphic analysis of a number of Ordovician reference sections has been completed in five different blocks of Salair, including West-Berd’ (Medvedkovo), East-Berd’, Krasnoe, Gurievsk and Eltsovka. Modern data on nine mainly terrigenous and, less often, carbonate-terrigenous sections bearing fossils and composed of carbonate units and volcanic rocks including lavas, as well as tuff and tuff sandstones have been presented. The Ordovician terrigenous sedimentation in the study area was complicated by stages of volcanic sedimentation. Volcanic-sedimentary sequences were documented at four biostratigraphically dated stages in Salair: 1) the Tremadocian, 2) the late Floian, 3) the middle – late Darriwilian, 4) the late Katian – Hirnantian.
Technology Focus: Drilling Automation and Innovation (February 2025)
Authors: Willerth Marc
Published: February 2025

Everywhere you look these days, there is talk of how advances in big data, artificial intelligence (AI), and machine learning (ML) will revolutionize virtually every aspect of our lives. The thought of letting computer algorithms pore over mounds of data collected every day and spit out solutions to our biggest problems is certainly appealing. This month, we will look at how researchers in the drilling domain are using this potential to improve well construction.

I would be remiss if I did not caution the reader to maintain some healthy perspective when looking at how other areas have been changed and assuming that a direct analog exists for drilling. Consider this: It is estimated that there are fewer than 100,000 wells drilled each year, meaning that more data is generated by traffic in a small city in a day than is produced by the entire global drilling industry each year. Suffice it to say, while AI and ML are powerful tools that will certainly effect change, one should not expect off-the-shelf solutions to simply be plug-and-play for revolutionizing drilling. Instead, it will be careful application of these tools combined with a strong grounding in the fundamental physics and engineering of the domain that will lead to meaningful progress.

I urge readers to keep this in mind as they peruse the selection of papers for this month. Each takes a different approach to how problems are solved with data and algorithms, but they all share a common thread: There must be a solid foundation in domain knowledge to build a successful solution. Much like a sledgehammer, AI and ML are powerful tools, but they are not the right tool for every job. The key is knowing exactly when and how to use them in conjunction with everything else in the toolbox to achieve the maximum benefit.

Recommended additional reading at OnePetro: www.onepetro.org.

IPTC 24078 - Real-Time Detection of Stuck Pipe Using Hybrid AI/Physical-Prediction Models by Mohammed A. Malki, Saudi Aramco, et al.

SPE 217953 - Drillstring Failures: Inevitable or Not? by G. Plessis, NOV, et al.

SPE 220690 - Automating Drilling Practices To Compensate for Interactions Between Tool Joints and the Rotating Head by David Forrest, Precision Drilling, et al.
Double degree programs and education for sustainable development implementation: Experience of Ukrainian and UK universities cooperation in wartime
Authors: Skliar Iryna , Kostel’ Mykola , Melnyk Olena , Bliumska-Danko Kseniia
Published: February 2025

The internationalization of higher education has become a key trend and response to the growth of globalization and online learning. After the start of the Russian war in Ukraine, Ukrainian higher education underwent significant destruction. Ukrainian HEIs have been significantly losing their capacity for development. Loss of human capital, including educational losses, becomes more relevant from the perspective of further sector development.This paper explores the intersection of DDP implementation and the implementation of Education for Sustainable Development (ESD), focusing on faculty members’ experiences within the Twinning Initiative framework. By investigating faculty members’ perceptions of quality assurance gaps and examining the impact of DDPs on the integration of SDGs, the study provides insights into how these programs contribute to advancing Sustainable Development Goals (SDGs) in higher education. This study employed semi-structured interviews. Interviewees were selected from the academic staff of five of the six Ukrainian universities involved in DDPs. Nine interviews were conducted in the period from April 2024 to June 2024. All interviewees represent the double-degree staff from different roles.Despite some differences between the procedures, the principles of internal quality assurance in Ukrainian universities correspond to those of their British partners. The findings show that implementing DDP promotes “learning by doing” for teaching staff, encouraging curriculum innovation and professional development. This study highlights the potential of DDP to stimulate the implementation of ESD principles in higher education and suggests directions for future research, particularly in war-affected regions.
Acknowledgment This contribution is prepared with the support and funding under Researchers at Risk Fellowships Programme led by the British Academy in partnership with the Academy of Medical Sciences, the Royal Academy of Engineering, the Royal Society and Council for At-Risks Academics (CARA), and in the framework of the realization the Erasmus+ KA 2 CBHE project “Universities-Communities: Strengthening Cooperation” (Grant Agreement 101083077), and Jean Monnet Centre of Excellence “EU Studies of Social Innovations in Education” (ESSIE) – 101085552 – ERASMUS-JMO-2022-COE.The European Commission’s support for the production of this publication does not constitute an endorsement of the contents that reflect the views only of the authors, and the Commission cannot be held responsible for any use that may be made of the information contained therein.
The role of leadership qualities of the management in preserving and ensuring the functionality of relocated Ukrainian higher education institutions during the war
Authors: Petryk Kristina , Mukhina Tetiana , Koval Karyna , Vientseva Nadiia , Lesyk Anzhelika , Popova Olha , Fatianova Tetiana
Published: February 2025

The war in Ukraine has led to significant changes in the functioning of higher education institutions. Many universities from the eastern and southern regions of the country were forced to relocate to safer areas. The study examines the role of leadership qualities of the management of Ukrainian HEIs relocated due to the war on their success in functioning in the new conditions from the perspective of the academic staff. The research methods included an anonymous online questionnaire of 162 academic staff members from Berdiansk State Pedagogical University and Melitopol State Pedagogical University named after Bohdan Khmelnytsky. The study identified leadership qualities that HEI staff identified as key to stabilizing the institution’s operations in crisis conditions. Responsibility was named by 53.09% of respondents, and strategic thinking by 44.44%. Also, it was found that respondents, in general, positively assessed the results of leadership actions of management in difficult conditions: 29.6% rated them as “very effective” and 54.3% as “effective.” Despite the overall successful adaptation of the studied HEIs, weaknesses in management decisions were revealed, including insufficient emotional support for academic staff and the absence of developed crisis action plans. The study’s conclusions emphasize the importance of further developing professional and moral-volitional qualities of management representatives for effective HEI governance in crisis conditions. The findings may be useful in creating specialized professional development programs for HEI managers in conditions of political, economic, and other instability.
Lemorzsolódás és súlyozás az életünk fordulópontjai panelfelvételben
Authors: Bartus Tamás
Published: February 2025

A 2001-ben útjára indított Életünk fordulópontjai panelvizsgálat mind ez idáig utolsó, negyedik hullámában már csak a kiinduló minta felével készült interjú. Jelen tanulmány (1) elemzi az Életünk fordulópontjai felvételnél tapasztalt lemorzsolódás társadalmi-demográfiai aspektusait, okait; (2) a lemorzsolódáselemzésre támaszkodva kidolgoz egy súlyozási eljárást, melynek célja a szelektív panelkopásból fakadó torzítások minimalizálása; végül (3) megvizsgálja, a súly csökkenti-e bizonyos demográfiai eseményekre vonatkozó becslések torzítását. Az eredmények szerint a lemorzsolódás szelektív: valószínűbb a fiatalok, a férfiak, a nem házasok, az iskolázatlanok és a Közép-Magyarországon élők között. A szelektív lemorzsolódást kompenzáló súlyok valamelyest javítanak a születések számára vonatkozó becsléseken, ugyanakkor nem mérséklik a házasságkötések és a válások számára vonatkozó becslések megbízhatatlanságát. A társadalmidemográfiai ismérvek válaszadásra gyakorolt hatását tükröző súlyok tehát nem szavatolják a tetszőleges súlyozott becslések megbízhatóságát.
Use and legislation of Glyphosate in Mexico: healthcare, healthy environment and drinking water access.
Authors: Pérez-Martínez Arizbeth , Vergara-Castañeda Arely , Mercado-Moreno Kytzia Esmeralda , Benítez-Núñez Christian , Guadarrama Muñoz Alma Cossette
Published: February 2025

This paper analyzes the status of legal regulation of the use of glyphosate in Mexico. To achieve this purpose, its use has been debated in constitutional obligations to human rights to health, the environment, and access to drinking water. Glyphosate is an agrochemical compound used as a main substance in the formulation of pesticides having a low toxicological level, and it is currently the most widely used herbicide worldwide. It is well known that many international organizations have reported that the use of glyphosate does not represent harm to health, if it is used properly and, in the concentration indicated in the regulations. However, glyphosate inhibits enzymatic production which is the key factor to the aromatic amino acid biosynthesis needed for vegetation growth, having a negative effect on the environment. Researchers have suggested an important risk to health by indirect glyphosate exposure, such as water and food polluted with glyphosate residues, which could develop diseases or health conditions such as skin irritations, gastrointestinal disorders, endocrine or hematological disrupters, etc. In Mexico, there are reports about the presence of glyphosate in food, particularly 30% of tortillas production in Mexico City presents glyphosate residues. For this reason, the Mexican government has decided to eliminate the use of glyphosate in crop fields by 2024.
Determinación de hongos potencialmente toxicogénicos en ensilado de maíz
Authors: Velazquez Guerrero Jazmin Janeth , Cerna Chavez Ernesto , Ochoa Fuentes Yisa María , Díaz Aguilar Rocío de Jesús
Published: February 2025

Entre la dieta base de los rumiantes en México se encuentra el ensilaje de maíz, que constituye de 35 a 50% de la dieta diaria; sin embargo, uno de los principales problemas en su proceso de elaboración es la contaminación por hongos fitopatógenos, entre los que se encuentran reportados los géneros: Aspergillus spp., Fusarium spp., Penicillium spp., Cladosporium spp., Trichothecium roseum., Geotruchum spp., Altenaria spp., Scopulariopsis spp. y Mucor spp. Algunos de estos hongos tienen la capacidad de producir micotoxinas que causan enfermedades y muerte, tanto en humanos como en animales. El objetivo de este estudio fue identificar los hongos presentes en los ensilados de maíz, producidos en municipios de Aguascalientes, Zacatecas, Guanajuato y Jalisco. El muestreo se realizó durante noviembre-diciembre del 2022 y abril-mayo del 2023, utilizando la técnica “W” en cada uno de los ensilajes, el análisis de las muestras se realizó en la Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila México. En este estudio se aislaron e identificaron morfológica y molecularmente las especies Fusarium moniliforme, F. chlamydosporum, F. oxysporum, Aspergillus fumigatus, A. flavus, Geotrichum galactomyces, Monascus purpureus, M. ruber, confirmando su presencia como contaminantes del ensilaje de maíz.
Impacto de la Educación Formal y Migración en el Desempeño de las Empresas Familiares: Un Caso en Jerez, Zacatecas
Authors: Villegas-Berumen Héctor Gabriel , Morales Magallanes Humberto , Landeros Soriano César
Published: February 2025

This research is the result of observing the performance phenomenon of family businesses (FBs) in relation to the formal education level of participating members of their administration, aiming to establish a relationship between both variables. This study was conducted through the design of a survey as a measurement instrument, with a reliability of α = 0.741, applied to a sample of n = 280 companies, using statistical hypothesis tests: 1) One-way ANOVA, 2) Student's t-test for a single sample, and 3) Hypothesis testing with two samples for verification. It was found that companies whose average educational level is high do not necessarily have better performance expectations in a Mexican urban area with low economic growth, due to the phenomenon of migration at an early age. It is important to emphasize that the data collected for the purpose of this research were obtained in the locality of Jerez, in the state of Zacatecas; therefore, its results can only be generalized to locations with similar social, economic, and demographic conditions.
Bioeconomía circular, una oportunidad de agregar valor y aumentar la competitividad de la cadena de valor leche-queso en México
Authors: Rojas Rojas María Magdalena , Valencia Sandoval Karina , Brambila Paz José de Jesús
Published: February 2025

El sector lechero es uno de los más importantes del país; pese a su importancia y a la alta demanda de productos de origen animal, esta industria se asocia a la contaminación ambiental debido a la acumulación de gases de efecto invernadero y a la producción de residuos. El objetivo es evaluar estrategias de diversificación en la cadena de valor de leche-queso, que permita producir alimentos a la par de gestionar la biomasa residual de los procesos para obtener productos con alto valor agregado y que, contribuyan aumentar la rentabilidad y reducir el riesgo en las unidades de producción con la hipótesis de que la diversificación de productos tradicionales como queso y leche complementados con la gestión sostenible de los residuos para generar productos con alto valor agregado como biogás y suero de leche en polvo contribuyen a aumentar el nivel de ingreso y a reducir el riesgo en la producción para elevar la competitividad del sector. Se encontró que la tendencia de los precios de los productos con valor agregado fue mayor en comparación con los precios de los productos tradicionales y los portafolios sin diversificación presentaron menor rentabilidad y mayor riesgo en contraste con los portafolios diversificados.
A new proposal for an easy-to-calibrate DNI clear-sky model: a performance analysis and validation in different geographical locations
Authors: Sánchez-Segura César D. , Peña Cruz Manuel I.
Published: February 2025

Clear sky models can be used as a reference for sizing solar technology applications and for solar irradiance forecasting purposes. Properly defining the parameters of each clear sky model implies knowing the altitude, latitude, longitude, as well as various climatic characteristics of the study site, which makes its implementation difficult. Derived from the above, in this work a new easy-calibration methodology was developed to obtain a functional clear sky model for any day of the year and any geographical location. By proposing calibration coefficients obtained from only a couple of DNI measurements, and without taking into account the geographical characteristics or climatic conditions of the study site, the developed clear sky model was tested in a global context using a period of 11 years (2010-2020) with databases of 71 solarimetric stations, obtaining an average RMSD that ranges between 6.48% (arid climate) to 7.97% (equatorial climate). In addition, the developed model was compared with a variety of clear sky models to determine the percentage of accuracy of these against clear and non-clear sky days, thus demonstrating that the accuracy of the proposed model can be superior in different scenarios.
The current perspective of oxygen therapy and ventilatory support in acute heart failure Authors Yoga Waranugraha
Authors: Waranugraha Yoga
Published: February 2025

Oxygen (O2) therapy in acute heart failure (AHF) is purposed to address hypoxemia and thereby avert irreversible harm to essential organs caused by cellular hypoxemia. The O2 therapy is recommended for patients with AHF who have an oxygen saturation (SpO2) level below 90% or an oxygen partial pressure (PaO2) below 60 mmHg. The initial strategy of O2 therapy in AHF involves administering O2 using the nasal, face mask, or non-rebreathing mask (NRBM). In more severe clinical conditions or respiratory distress, non-invasive positive pressure ventilation (NIPPV) or intubation with mechanical ventilation may needed.

Keywords: acute heart failure, oxygen therapy, ventilation
Effects of early ivabradine therapy in patients with acute heart failure: A meta-analysis and systematic review
Authors: Nuraini Yulianna Cahya , Irnizarifka Irnizarifka , Prameswari Hawani Sasmaya , Simangunsong Robby Martin
Published: February 2025

BACKGROUND: Although ivabradine is the agent of choice for reducing heart rate, its use in acute heart failure patients remains unclear.

OBJECTIVES: To evaluate the potential of in-hospital ivabradine administration in reducing heart rate, the risk of rehospitalization, mortality, and clinical profile in acute heart failure patients using a meta-analysis approach.

METHODS: The study was designed as a meta-analysis conducted from August to September 2024. We selected several database sources for the search strategy, including PubMed, Google Scholar, ProQuest, British Medical Journal, and American Journal of Cardiology. Data on the outcomes of ivabradine treatment compared to standard therapy were collected to determine cumulative point estimates. For statistical analysis, we used the Mantel–Haenszel test for categorical data or inverse variance for continuous data.

RESULTS:

We included 11 articles in the study. Our findings indicated that, in comparison to the standard therapy group, the ivabradine group was associated with improvements in resting heart rate, a reduction in the risk of rehospitalization, a decrease in cardiovascular mortality, a reduction in all-cause mortality, a shorter length of stay, improvements in New York Heart Association (NYHA) classification, better Left Ventricular Ejection Fraction (LVEF), and improved B-type Natriuretic Peptide (BNP) / N-terminal pro b-type Natriuretic Peptide (NT-proBNP) levels.

CONCLUSION: In conclusion, this study has revealed the beneficial effects of using ivabradine for the treatment of acute heart failure.

Keywords: acute heart failure, beta blocker, heart rate, ivabradine, meta-analysis.
Interventricular septal dissection in a patient with atrial septal defect and pulmonary hypertension
Authors: Personaldi Personaldi , Dinarti Lucia Kris , Marsam Real Kusumanjaya , Mumpuni Hasanah
Published: February 2025

Background: Interventricular septal dissection (IVSD) is a sporadic disorder. Previous literature has reported cases of IVSD caused by sinus valsalva aneurysms, post-myocardial infarction patients, congenital abnormalities, or post-thoracic trauma. However, no prior literature has reported IVSD cases caused by an atrial septal defect (ASD) accompanied by pulmonary hypertension. This case report aims to initiate the discussion of recognizing the association between ASD-PH and IVSD.

Case presentation: A 48-year-old female with ASD was brought to Dr. Sardjito General Hospital with complaints of fatigue. In 2013, the patient experienced attacks of hemoptysis, which was then revealed to be caused by an increase in pulmonary pressure. Transthoracic echocardiography (TTE) examination results concluded that the patient had a high probability of pulmonary hypertension (PH), secundum atrial septal defect (ASD), which was 22-25 mm in diameter, a bidirectional shunt, and mid-apical interventricular septum dissection with flow. The patient underwent a right heart catheterization examination on September 3rd, 2015, at Dr. Sardjito General Hospital and was confirmed with pulmonary hypertension. The patient underwent computed topography (CT) scan with contrast on March, 2024, for evaluation, where we found a rupture of the interventricular septal muscle.

Conclusion: The incidence of interventricular septal dissection is rare. Various causes are suspected, such as sinus of Valsalva rupture, post-myocardial infarction events, or associated congenital abnormalities. From this report, we present an IVSD case that is concurrent with ASD-PH. ASD and pulmonary hypertension, through combination of myocardial injury and hypertension, can cause interventricular septal dissection.

Keywords: interventricular septal dissection, atrial septal defect, pulmonary hypertension, case report
Reversible atrioventricular block during transcatheter ventricular septal defect closure – a serial case report
Authors: Indrihapsari Pratiwi , Putri Valerinna Yogibuana Swastika
Published: February 2025

Background:

The transcatheter ventricular septal defect procedure is a sophisticated intervention that carries potential complications, such as complete heart block. We report two cases of patients who experienced total AV block during transcatheter VSD closure and were successfully treated with steroids and atropine.

Case Presentation:

Perimembranous VSD was found in a 19-year-old military recruit. A baseline 12-lead EKG showed sinus rhythm and no conduction delays. Echocardiography revealed a 6-9 mm perimembranous VSD. Then the VSD was closed with a VSD Occluder No 10-8. ECG monitor and echocardiography showed a complete atrioventricular block during the procedure. Fortunately, 1mg atropine and 125mg methylprednisolone overcame this. Recurrent atrioventricular block and VSD were not found after the procedure.

A 33-year-old male patient was diagnosed with a perimembranous VSD during routine screening. Initial 12-lead electrocardiography was unremarkable, while echocardiographic evaluation revealed a 3-5 mm perimembranous VSD. Transcatheter closure was performed using a VSD Occluder device (No. 10-8). Hemodynamic monitoring and echocardiography demonstrated a complete atrioventricular (AV) block intraoperatively. Pharmacological intervention with 1 mg atropine and 125 mg methylprednisolone resolved the conduction disturbance. Despite this transient complication, the procedure continued with successful device deployment. Post-procedural assessment confirmed complete VSD closure with no residual shunt or persistent AV conduction abnormalities.

Conclusions:

In the context of transcatheter closure of ventricular septal defects, there exists a risk of atrioventricular block, which can be precipitated by mechanical trauma or compression from the delivery system or device. Ensuring the appropriate sizing of the device is pivotal in minimizing this risk. Continuous heart rhythm monitoring is indispensable during both short-term and long-term follow-up periods.

Keywords: Ventricular septal defect, Atrioventricular block, transcatheter device closure, case report
Unprovoked transformation of saddle back to coved ST-segment elevation ECG pattern
Authors: Firdaus Muhammad , Rizal Ardian
Published: February 2025

Background

Brugada syndrome (BrS) is a heritable arrhythmia that is clinically characterized by spontaneous coved ST segment elevation and a negative T wave in the right precordial lead. Some psychotropic medications, anesthetics, cocaine, excessive alcohol consumption, and fever have been identified as potential causes of VF and SCA in BrS.

Case Illustration

A 35-year-old man was hospitalized after experiencing unexplained syncope. It was felt 3 times within an hour and was preceded by lightheadedness, nausea, and vomiting. He did not experience palpitations, chest pain, or shortness of breath prior to the syncope. Prior to syncope, he had no history of fever, dehydration, drinking, or taking any medications. There was no family member died suddenly because of heart disease. The physical examination, CXR, laboratorium, and echocardiography were all within the normal range, but the electrocardiogram showed a coved ST segment elevation with an inverted T wave at V1-V2, as well as a saddle back ECG pattern two weeks later with a J point of 2 millimeters at V2. The combination of symptoms and ECG findings led to the BrS diagnosis. He underwent ICD implantation at RSUD Dr Saiful Anwar Malang for secondary prevention. After several months of ICD check-ups, there were no VT/VF events or ICD shock therapy.

Conclusion

A change in the ecg of the brugada pattern from type 2 to 1 is often accompanied by known ethiologies. But an unprovoked conversion of the BrS type is possible in rare cases.

Keywords: Brugada syndrome, Sycope, Implantable Cardiac Defibrilator (ICD)
Proper management of pulmonary hypertension crisis
Authors: Aziz Indra Jabbar , Martini Heny
Published: February 2025

A pulmonary hypertensive crisis is characterized by a sudden increase in the pressure in the pulmonary arteries, leading to an excessive workload on the right ventricle of the heart and a decrease in cardiac output. Typically, individuals with pulmonary hypertension (PH) have a greater mortality rate after surgical procedures, which can range from 4% to 24%. Early recognition of pulmonary hypertensive crisis is crucial. There are a limited number of comprehensive guidelines or review articles that focus on the evaluation and treatment of pulmonary hypertension crises. Hypoxia in pulmonary hypertension crisis leads to a vicious cycle of decreased cardiac output, elevated pulmonary vascular resistance, right ventricular enlargement, restricted left ventricular filling, reduced blood pumping, systemic hypotension, and metabolic and respiratory acidosis. It is crucial to monitor clinical parameters, including systemic hypotension, hypoxia, tachycardia, reduced urine output, and complete absence of urine production. The main characteristics of a pulmonary hypertension crisis are increasing pulmonary and right atrial pressures along with a decrease in cardiac output. Echocardiography can be a useful additional tool that shows the deterioration of the right ventricular (RV) function and enlargement. Confirmation of a pulmonary hypertensive crisis is achieved with the use of invasive hemodynamics. Our current review aims to discuss the proper management of Pulmonary Hypertension Crisis.

Keywords: Pulmonary Hypertension Crisis, Congenital Heart Disease, Right Heart Failure
Hypothermia theraphy in patients post cardiac arrest
Authors: Yudha Tria , Prasetya Indra , Tjahjono Cholid Tri , Anjarwani Setyasih
Published: February 2025

Cardiovascular disease is the leading cause of death in several developing countries, and many of these deaths occur before reaching the hospital due to cardiac arrest. Most patients who return to spontaneous circulation (ROSC) and are brought to the hospital experience severe neurological damage during cardiac arrest, and this damage is the cause of in-hospital mortality. Improvements in survival and neurologic improvement of patients with CA have focused on two main therapy areas. The first area is improved education and skills of medical and paramedical personnel to improve perfusion post CA. The second area is a greater emphasis on post-resuscitation care which includes optimizing oxygenation and ventilation, avoiding hypotension, treating causes of CA such as acute coronary ischemia, and initiating hypothermia therapy if necessary, as in the 2020 guidelines and recommendations from the American Heart Association (AHA), International Liaison Committee of Resuscitation, and European Resuscitation Council covering the entire spectrum of post-resuscitation care. The AHA guidelines 2020 recommend optimizing hypothermia therapy for 24 hours with a target temperature between 320C - 360C in ROSC patients to improve clinical outcomes of neurological status after cardiac arrest. This is contrast to the study of Martinell et al in their research which concluded that there was no significant difference in survival rates within 30 days after cardiac arrest in patients who received either hypothermia therapy or those who did not. Hypothermia therapy, which is currently part of the post-resuscitation care recommendations, has varied variables and remains controversial in its implementation. Based on this, this referent will discuss the effects of hypothermia therapy on post-cardiac arrest patients, the stages, and the practical aspects of implementing hypothermia therapy.

Keywords: Return of spontaneous circulation, cardiac arrest, hypothermia.