bluuebunny/crossref_metadata_2025 huggingface dataset:
Coinheritance of HNF1A and glucokinase variants in maturity-onset diabetes of the young
Authors: Watanabe Daisuke , Yagasaki Hideaki , Narusawa Hiromune , Inukai Takeshi
Published: August 2024

Maturity-onset diabetes of the young (MODY) is a group of monogenic forms of diabetes mellitus characterized by early-onset diabetes with dominant inheritance of beta-cell dysfunction. There are few reports of the coinheritance of glucokinase (GCK) and hepatocyte nuclear factor 1 alpha gene (HNF1A) variants underlying MODY in patients. Herein, we describe a case involving combinations of monoallelic GCK and HNF1A variants associated with MODY. A 10-year-old Japanese girl with a three-generation family history of diabetes without obesity showed high levels of urinary glucose during a school screening test. Her glucose metabolism profile revealed 124 mg/dL of fasting glucose, 6.9% glycated hemoglobin (HbA1c), and 2.78 ng/mL of C-peptide immunoreactivity levels. In a 75-g oral glucose tolerance test, her base glucose, peak glucose, insulin resistance, and homeostasis model assessment of beta cell function levels were 124 mg/dL, 210 mg/dL (120 min), 1.71, and 33%, respectively. Based on the clinical phenotype of GCK-MODY, alimentary and exercise therapy without oral hypoglycemic agents were used to maintain her fasting glucose and HbA1c levels. We explored the coinheritance of MODY with GCK and HNF1A variants in this and past cases and found that careful clinical follow-up is required to firmly establish phenotypic features. Moreover, the accumulation of data on genetically confirmed MODY associated with the coinheritance of GCK and HNF1A variants will be useful for understanding genotype–phenotype correlations.

Learning points

MODY is a group of monogenic forms of diabetes mellitus characterized by early-onset diabetes with the dominant inheritance of beta-cell dysfunction.

MODY2 and MODY3 caused by heterozygous loss-of-function variants in the glucokinase (GCK) and hepatocyte nuclear factor 1 alpha (HNF1A) genes, respectively, are the most common forms of the disease.

Few cases of MODY have previously been reported as being associated with the coinheritance of GCK and HNF1A variants.

Careful clinical follow-up is required to firmly establish phenotypic features in the coinheritance of MODY with GCK and HNF1A variants.

The accumulation of data on genetically confirmed MODY associated with the coinheritance of GCK and HNF1A variants will be useful for understanding genotype–phenotype correlations.
Metal-on-metal hip resurfacing arthroplasty: is it safe and reliable? A synopsis of the past, the present, and the future of HRA
Authors: Xie Feng , Sheng Shuya , Palan Jeya , Pandit Hemant G
Published: August 2024

This paper discusses the existing literature in the field of metal-on-metal (MoM) hip resurfacing arthroplasty (HRA), the background (why was it developed), the past (what was the evidence leading to its rise and fall in clinical use), the present situation (why a potential resurgence), and the future directions for potential improvements.

All literature relevant to MoM HRA was reviewed and summarized to provide a comprehensive summary. Furthermore, a detailed literature search was performed on PubMeD, MEDLINE, and Google Scholar to identify all clinical studies reporting a minimum 10 years of outcomes for modern MoM HRA devices from February 2018 to February 2023.

In addition, joint registry data over the same time period, available in the public domain, was examined to extract related information on MoM HRA.

Metal ions are present in almost all types of hip replacement; on the whole, however, the risk of revision for resurfacing due to metal-related pathologies is very low, but higher than in other types of bearings.

There are studies that show that some brands of MoM resurfacing prostheses have achieved excellent clinical outcomes in long-term follow-up studies and are still in use although less commonly than in early 2000s.

Use of alternative bearing surfaces has demonstrated excellent results in the short-term and a very critical long-term follow-up of these cases still will help establish their place in the hip arthroplasty world.

HRA deserves a permanent place in the armamentarium of orthopedic surgeons and in the hand of experienced surgeons.
Comprensión lectora: análisis de lo visual y no visual desde la teoría de Frank Smith
Authors: Hernández Otero Alejandra Nohemy , Villalba Gómez María José
Published: August 2024

El objetivo de este artículo es presentar un análisis sobre la incidencia de la teoría de Frank Smith en la compresión lectora de los estudiantes del grado séptimo de la sede José Rafael Faria Bermúdez, colegio Provincial San José de Pamplona a través de la implementación de lo visual y no visual. Para tal efecto, se tomó como marco de inteligibilidad la teoría de Frank Smith. Se implementó una metodología de enfoque cualitativo y un método de Investigación - Acción. Se tuvo en cuenta para la recolección de la información: una encuesta a docentes; una prueba diagnóstica a estudiantes y el diseño de una estrategia didáctica basada en el fortalecimiento de la compresión lectora. Se observó que los estudiantes mostraron mejora en la interpretación y compresión de los textos, además se utilizaron diferentes estrategias que ayudaran a analizar el desarrollo de las habilidades y dificultades presentadas en los discentes.
Ana Ilce Gómez: poesía asida del misterioso silencio
Authors: Zosa-Cano Alexander
Published: August 2024

Ana Ilce Gómez Ortega is clearly Nicaragua’s greatest lyric poet. His Poetry is not the shipwreck, but it is the sailboat where loneliness and loneliness intersect everyday life of women. A sample of the poetryof Gómez Ortega, author of The ceremonies of silence (two editions: 1975 and 1989) and Poems of the Everyday Human (2004), is compiled briefly to present it to a Central American public. His work is the manifestation of a peaceful life away from of national developments, demonstrating the sobriety of their work and their commitment to poetry. His invocations between customs and mystery hang of the thread where the author builds herself in a self-demanded silence from where the image of the poet reaches its full dimension. Behold: Ana Ilce Gómez Ortega!
Evolución y tendencias en la revista Quipukamayoc: revisión bibliométrica de 1993 a 2023
Authors: Rodríguez Cairo Vladimir , Vilchez Olivares Percy Antonio , Ortiz Huiza Renatta Rebeca Raffaella
Published: August 2024

Objetivo: Analizar la evolución y tendencias bibliométricas en la revista Quipukamayoc entre 1993-2023. Métodos: Se empleó un enfoque cualitativo, utilizando el método analítico-sintético y la revisión documental como técnica de recolección de datos. La revisión bibliométrica se centró en tres áreas: análisis de los artículos, caracterización de los autores y evaluación del impacto de las publicaciones, proporcionando un estudio detallado y exhaustivo de las contribuciones en la revista. Los datos se recabaron de diversas fuentes, como Google Scholar Metrics, Scopus, SciELO y la propia revista. Resultados: De los 748 artículos publicados entre 1993-2023, 618 son originales y 130 de revisión. De los 1026 articulistas, 889 son nacionales y 137 extranjeros, siendo los más representativos los que proceden de México (43), Ecuador (41), Argentina (13), Colombia (10), Brasil (7) y España (7). Asimismo, los temas más recurrentes fueron contabilidad y finanzas (34 %), empresa (23 %), economía y comercio (16 %), tributación (15 %), sistemas y tecnologías de la información (5 %), y sector público y auditoría (7 %). Conclusión: Durante los 30 años de publicación continua, Quipukamayoc ha sido un referente importante en las áreas de investigación contable, económica, financiera y empresarial para autores y profesionales nacionales y extranjeros.
Ecological factors shaping the evolution and behavior of spoonbills: insights for conservation and management
Authors: Padmakumar Vidya , Shanthakumar Murugan
Published: August 2024

Spoonbills (Family: Threskiornithidae) are a group of charismatic wading birds known for their distinctive spoon-shaped bills. They inhabit a variety of wetland habitats across the globe and have captured the attention of researchers and conservationists due to their unique evolutionary adaptations and behaviors. This paper aims to explore the ecological factors that have shaped the evolution and behavior of spoonbills and provide insights into their conservation and management. By examining their habitat preferences, feeding strategies, breeding biology, and migratory patterns, we can gain a comprehensive understanding of the factors influencing spoonbill populations. Moreover, this knowledge can guide effective conservation efforts to ensure the long-term survival of these magnificent birds.
Malignant hyperthermia: a case report
Authors: Alito Maria Fernanda Ribeiro , Fagundes Maria Eduarda Martins Campos e , Valente Ana Claudia Albernaz , Scarduelli Polyanne Lopes de Freitas
Published: August 2024

Malignant hyperthermia (MH) is a rare pharmacogenetic syndrome, which is characterized as a severe hypermetabolic reaction followed by halogenated inhalational anesthetic administration and/or depolarizing muscle relaxants, such as succinylcholine. Therefore, patients at risk of MH need trigger-free anesthesia in order to avoid life-threatening metabolic crises. This report discusses a case of MH in a six-year-old patient, during an Orchidopexy and Urethrocutaneous Fistul's Correction under general anesthesia. Inhalational induction was carried out using Sevoflurane, whereas propofol and fentanyl were afterward administered. During the procedure, the patient developed hypercapnia, significant temperature rise, masseter rigidity, and hyperkalemia. With a diagnostic hypothesis of MH, a protocol guided by the Hotline for MH was applied, leading to a great patient response that made it possible to transfer the child to the Pediatric Intensive Care Unit where dantrolene was administered, allowing good control of the patient's general condition.
Правова політика як складова євроінтеграційної політики України: виклики, загрози, перспективи
Authors: Оніщенко Наталія Миколаївна
Published: August 2024

Доповідь присвячено актуальним проблемам правової політики України в контексті євроінтеграції, зокрема таким її складовим, як право людини на мир, державна ветеранська політика та нормопроєктувальна діяльність. Право на мир розглядається як таке, що має одночасно колективний та індивідуальний характер. Його основою є прагнення до досягнення згоди як між державами та їх народами, так і між окремими громадянами та їх об’єднаннями всередині певного суспільства, мирного врегулювання будь-яких конфліктних ситуацій на макро- та мікрорівнях. Окремим вектором є аналіз сутнісних характеристик нормопроєктувальної діяльності в контексті сучасних викликів та пріоритетів. Нормопроєктувальну діяльність проаналізовано з урахуванням інструментальних та сутнісних типологізаційних елементів. Зазначено, що одним із пріоритетних напрямів розвитку нормопроєктувальної діяльності на сучасному етапі є ветеранська політика та форми її здійснення. Наголошено, що нормопроєктувальна робота на всіх рівнях повинна забезпечувати права і свободи людини.
Стан і перспективи розвитку в Україні плазмово-дугових технологій отримання, обробки, з’єднання та 3D-друку виробів із новітніх матеріалів
Authors: Коржик Володимир Миколайович
Published: August 2024

У доповіді наведено основні результати проведених в Інституті електрозварювання ім. Є.О. Патона НАН України фундаментальних і прикладних досліджень у галузі плазмових та гібридних технологій. Окрему увагу приділено перспективам широкого практичного застосування розробок, пов’язаних зі створенням нових плазмово-дугових технологій отримання, обробки, з’єднання та 3D-друку виробів із новітніх матеріалів для ремонтного відновлення відповідальних деталей газотурбінних двигунів, конструкцій літальних апаратів, а також для підвищення довговічності й живучості відповідальних елементів спецтехніки.
Російсько-українська війна та міжнародне співтовариство: динаміка геополітичних змін
Authors: Віднянський Степан Васильович
Published: August 2024

Доповідь присвячено дослідженню проблематики військово-політичного протистояння Росії й України та його впливу на сучасні геополітичні реалії. Динамічний і суперечливий характер новітніх системних геополітичних змін у світі та екзистенційні виклики для України потребують глибокого наукового осмислення і ґрунтовного аналізу. Подібні дослідження мають спонукати українську дипломатію до більш активних і наполегливих дій щодо забезпечення дієвої та своєчасної підтримки України, а наших західних партнерів — до роботи над помилками і вжиття рішучих заходів, здатних наблизити перемогу України і всього демократичного світу над російським агресором. Фахове історичне осмислення сучасної російсько-української війни також може бути дороговказом для політичних лідерів у пошуку якісних нагальних рішень заради справедливого миру.
Genotoxicity Evaluation of a Hyperosmotic Solution Proposed as Endodontic Irrigant
Authors: Muñoz-Ruiz Abraham Israel , Martínez Figueroa Corazón de María , Pozos-Guillén Amaury de Jesús , Escobar-García Diana María , Mariel-Cárdenas Jairo , Gutiérrez-Cantú Francisco Javier , Oliva-Rodríguez Ricardo
Published: August 2024

One of the main aims of a root-canal treatment is to disinfect the root-canal system through mechanical instrumentation and cleaning by endodontic disinfection solutions. The most common endodontic disinfection solution used has been the sodium hypochlorite. However, it has been reported some important biological adverse effects and risks related to it, so it is necessary to propose and evaluate alternatives to be used as an endodontic disinfection solution. Hyperosmotic solution based on sodium chloride and potassium sorbate previously has been shown an adequate antimicrobial effect against endodontic microorganisms in planktonic and biofilm forms. This study evaluated the genotoxicity of a hyperosmotic solution proposed as an endodontic disinfection solution. Human fibroblast cells were seeded and incubated into well-culture plates and exposed to the hyperosmotic solution (30% and 100%) and compared to NaClO 1%, after cells were cultured, an evaluation was performed by Micronucleus, Tunel and Mitotracker assays. Based on results, the hyperosmotic solution is a safe potential endodontic disinfection solution or adjuvant for root canal system disinfection.
The Gaming Disorder Identification Test (GADIT) – A screening tool for Gaming Disorder based on ICD-11
Authors: Chan Gary C. K. , Saunders John B. , Stjepanović Daniel , McClure-Thomas Caitlin , Connor Jason , Hides Leanne , Wood Andrew , King Daniel , Siste Kristiana , Long Jiang , Leung Janni K.
Published: August 2024

Background

Gaming Disorder was included as an addictive disorder in the latest version of the International Classification of Diseases (ICD-11), published in 2022. The present study aimed to develop a screening tool for Gaming Disorder, the Gaming Disorder Identification Test (GADIT), based on the four ICD-11 diagnostic criteria: impaired control, increasing priority, continued gaming despite harm, and functional impairment.

Method

We reviewed 297 questionnaire items from 48 existing gaming addiction scales and selected 68 items based on content validity. Two datasets were collected: 1) an online panel (N = 803) from Australia, United States, United Kingdom and Canada, split into a development set (N = 589) and a validation dataset (N = 214); and 2) a university sample (N = 408) from Australia. Item response theory and confirmatory factor analyses were conducted to select eight items to form the GADIT. Validity was established by regressing the GADIT against known correlates of Gaming Disorder.

Results

Confirmatory factor analyses of the GADIT showed good model fit (RMSEA=<0.001–0.108; CFI = 0.98–1.00), and internal consistency was excellent (Cronbach's alphas = 0.77–0.92). GADIT scores were strongly associated with the Internet Gaming Disorder Test (IGDT-10), and significantly associated with gaming intensity, eye fatigue, hand pain, wrist pain, back or neck pain, and excessive in-game purchases, in both the validation and the university sample datasets.

Conclusion

The GADIT has strong psychometric properties in two independent samples from four English-speaking countries collected through different channels, and shown validity against existing scales and variables that are associated with Gaming Disorder. A cut-off of 5 is tentatively recommended for screening for Gaming Disorder.
The influence of infiltration devices on the urban area
Authors: Raczková Andrea , Škultétyová Ivona , Wittmanová Réka , Hrudka Jaroslav , Hurban L'uboš
Published: August 2024

In a result of the increase in impervious surfaces in the urbanized area, there is an increase in surface runoff and at the same time an overload of the sewage network. In order to reduce the mentioned negative impacts in the inner city of Bratislava, this study was developed. The aim of this study was to design as possible the most efficient possible infiltration device for capturing rainwater and keeping it at the point of impact of precipitation of the addressed site. The Novohradska Grammar School campus was chosen as the area of interest. It is assumed that, together with elements of green infrastructure, these measures will be able to contribute in order to mitigate the adverse effects of urbanization in the capital.
Leonurine as a dietary compound: Its role in ferroptosis inhibition through Nrf2 signaling pathway activation
Authors: Qi Le , Zhu Lili
Published: August 2024

This research explores the potential of leonurine, a component found in motherwort, to inhibit intestinal inflammatory response in patients of inflammatory bowel disease (IBD) through dietary means with a particular emphasis on how it influences the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. Using colon epithelial cell lines, HT29 and Caco-2, we set up models to study the impact of inflammation, oxidative stress, and apoptosis induced by lipopolysaccharide (LPS). In addition, we employed Nrf2 knockout cell lines to understand its function in a better way. The introduction of leonurine is aimed to evaluate its ability to reduce cell damage and inflammatory reactions by activating the Nrf2–heme oxygenase-1 (HO-1) pathway. Results indicated that LPS exposure led to inflammation, oxidative stress, apoptosis, and potential ferroptosis. It was observed that Nrf2 acted as a suppressor in this scenario; its absence increased cell susceptibility to these challenges. Treatment with leonurine notably decreased inflammation, oxidative stress, and apoptosis; however, these protective effects were significantly reduced in cells lacking Nrf2. This confirms that leonurine can inhibit oxidative stress, inflammatory response, apoptosis, and potential ferroptosis mechanism of colon epithelial cells by activating Nrf2. This study not only enhances our understanding of how leonurine regulates IBD but also highlights the importance of Nrf2 by shedding light on IBD development and potential nutritional approaches for its management.
Unet-boosted Classifier – Multi-Task Architecture for Small Datasets Applied to Brain MRI Classification
Authors: Sobyanin Kirill , Kulikova Sofya
Published: August 2024

The problem of training deep neural networks on small samples is especially relevant for medical issues. The paper examines the impact of pixel-wise marking of significant objects in the image, over the true class label, on the quality of the classification. To achieve better classification results on small samples, we propose a multitasking architecture – Unet-boosted classifier (UBC), that is trained simultaneously to solve classification and semantic segmentation problems. As the exploratory dataset, MRI images of patients with benign glioma and glioblastoma taken from the BRaTS 2019 data set are used. One horizontal slice of the MRI image containing a glioma is considered as the input (a total of 380 frames in the training set), and the probability of glioblastoma – as the output. Resnet34 was chosen as the baseline, trained without augmentations with a loss function based on cross-entropy. As an alternative solution, UBC-resnet34 is used – the same resnet34, boosted by a decoder built on the U-Net principle and predicting the pixels with glioma. The smoothed Sorensen-Dice coefficient (DiceLoss) is used as a decoder loss function. Results on the test sample: accuracy for the baseline reached 0.71, for the proposed model – 0.81, and the Dice score – 0.77. Thus, a deep model can be well trained even on a small data set, using the proposed architecture, provided that marking of the affected tissues in the form of a semantic mask is provided.
A Combined Term Extraction Method for the Problem of Monitoring Thematic Discussions in Social Media
Authors: Pimeshkov Vadim , Nikonorova Marina , Shishaev Maxim
Published: August 2024

Term extraction is an important stage in the automated construction of knowledge systems based on natural language texts, since it provides the formation of a basic concept system, which is then used in applied problems of intellectual information processing. The article discusses the problem of automated extraction of terms from natural language texts for their further use in the construction of formalized knowledge systems (ontologies, thesauruses, knowledge graphs) within the problem of monitoring thematic discussions in social media. This problem is characterized by the need to include in the formed knowledge system both concepts from several different domains, and some general concepts used by the audience of social media within thematic discussions. In addition, the generated knowledge system is dynamic both in terms of the composition of the domains it covers and the composition of relevant concepts to be included in the system. The use of existing classical methods for term extraction in this case is difficult, since they are focused on extracting terms within one domain. Based on this, to solve the problem under consideration, a combined method is proposed, combining approaches based on dictionaries, NER tools and rules. The results of the experiments demonstrate the effectiveness of the proposed combination of approaches to term extraction, which makes it possible to extract terms for the problem of monitoring and analyzing thematic discussions in social media. The developed method significantly exceeds the precision of the considered term extraction tools. As a further direction of research, the possibility of developing a method for solving the problem of identifying nested terms or entities is considered.
A Method for Recognition of Sentiment and Emotions in Russian Speech Transcripts Using Machine Translation
Authors: Dvoynikova Anastasia , Kagirov Ildar , Karpov Alexey
Published: August 2024

This paper addresses the issue of user emotions and sentiment recognition in transcripts of Russian speech samples using lexical methods and machine translation. The availability of data for sentiment analysis in Russian texts is quite limited, thus this paper proposes a new approach which is based on automatic machine translation of Russian texts into English. Additionally, the paper presents the results of experimental research regarding the impact of partial and full machine translation on emotion and sentiment recognition. Partial translation means translating single lexemes not included in Russian sentiment dictionaries, while full translation implies translating the entire text. A translated text is further analyzed using different English sentiment dictionaries. Experiments have demonstrated that the combination of all English sentiment dictionaries enhances the accuracy of emotion and sentiment recognition in text data. Furthermore, this paper explores the correlation between the length of the text data vector and its representativity. Experimental research for emotion and sentiment recognition tasks was conducted with the use of expert and automatic transcripts of the multimodal Russian corpus RAMAS. Based on the experimental results, one can conclude that the use of word lemmatization is a more effective approach for normalizing words in speech transcripts compared to stemming. The use of the proposed methods involving full and partial machine translation allows for an improvement in sentiment and emotion recognition accuracy by 0.65-9.76% in terms of F-score compared to the baseline approach. As a result of the application of machine translation methods to expert and automatic transcriptions of the Russian speech corpus RAMAS, an accuracy in recognition of 7 emotion classes was achieved at 31.12% and 23.74%, and 3 sentiment classes at 75.37% and 71.60%, respectively. Additionally, the experiments revealed that the use of statistical vectors as a text data vectorization method results in an a 1-5% increase in F-score value compared to concatenated (statistical and sentiment) vectors.
Listy z intencjami modlitewnymi nadsyłane do Kalwarii Zebrzydowskiej w latach 70. XX wieku. Świadectwo postaw religijnych i społecznych
Authors: Gapiński Bartłomiej
Published: August 2024

Autor interpretuje listy modlitewne wysyłane do Kalwarii Zebrzydowskiej w latach 70. XX wieku. Prezentuje je jako źródło historyczne, choć uwzględnia perspektywę etnologii i socjologii. Przedstawia genezę i cechy sanktuarium. Charakteryzuje treść listów, zwracając uwagę na ich specyfikę, opisuje społeczne patologie, znaczenie Kościoła katolickiego dla wiernych. Przytacza szereg listów. Podkreśla, że reprezentowały one głównie kobiecy punkt widzenia. W konkluzji akcentuje, że postawa religijna między innymi odzwierciedlała dylematy życia codziennego i była daleka od tak zwanej „wielkiej historii”. Co nie znaczy, że owa postawa religijna w przyszłości nie wpłynęła na przemiany społeczne zapoczątkowane drugim konklawe w 1978 roku.
Interactive Augmented Reality to Extend Students' Vector Experience
Authors: Geewe Linus , Vinerean Mirela , Alaqra Ala Sarah , Pettersson John Sören
Published: August 2024

First-year engineering students show difficulties in connecting basic vector algebra with manipulations using the graphical representation. Experiencing vectors in real applications can improve the process of learning vectors. Thus, we introduce a unique approach for using digital technologies, namely augmented reality. We utilized a video see-through head-mounted display to develop a vector manipulation tool enabling users to select and place virtual vectors in the real environment. The aim was to see how students react when experiencing vectors in augmented reality. After using the prototype, students answered a questionnaire about this experience. Results show that students experiences are positive and they are motivated to use the prototype in the course. Further, we investigated opinions about vector concepts from students in the trial group and other students attending the same course in vector algebra. The results indicate some differences in what students spontaneously associate with the concept vectors. Moreover, this study provides insights into how such investigations can be elaborated in the future.
Back and Forth Between Euclidean Geometry and Taxicab Geometry to Foster Students’ Theoretical Thinking in Digital Contexts
Authors: Miranda Annamaria , Saliceto Loredana
Published: August 2024

Recent research in mathematics education shows that by exploring the properties of figures and making conjectures, especially through dynamic geometry software, students can better develop their understanding of concepts. Furthermore, comparing different geometric worlds and, within them, different representations enhances Euclidean knowledge. In our ongoing experience, high school students are involved in exploratory cooperative learning activities within Taxicab geometry using digital and non-digital tools, starting from Euclidean geometry, and going back to it. In the paper, we focus on the concepts of distance, circle, and conic. We face the issue of promoting students’ conceptual understanding and theoretical thinking by transferring their knowledge of concepts or the validity of statements back and forth between Euclidean and Taxicab geometry, with the goal of providing evidence that an instrumental genesis of meaningful learning is activated when students engage in these activities.
Exploring Mathematics with GeoGebra
Authors: Pihlap Sirje , Kuresson Aire , Kraav Tiina , Jukk Hannes , Orav-Puurand Kerli
Published: August 2024

Mathematics seems abstract, difficult, and uninteresting to many students, which in turn reduces their interest in learning mathematics. It has been found that the use of ICT and meaningful contexts of problem-solving tasks can make learning mathematics more enjoyable and easier to understand for students. To increase students’ interest in learning mathematics and using the GeoGebra program, math competitions "Notice Mathematics Around You" have been organized in Estonia for lower and upper secondary school students, where the task was to create a GeoGebra applet on a given topic. In our paper, we present the works of students from three years on topics such as creating patterns using graphs of functions, creating fireworks for Estonia’s birthday and creating moving objects. The number of participants in these competitions was 232, 160 and 167, respectively. We also present students' opinions on this competition based on the questionnaires they filled out. The results showed that participants learned more about the GeoGebra program by creating their works. Some students realized that their math skills improved while doing the competition work or they understood something that they could not grasp in class with paper and pencil. Students realized that mathematics is useful beyond the classroom, and therefore, their attitude towards math improved. They enjoyed the sense of accomplishment, seeing the beauty of mathematics, and having math classes different from the usual. Students’ opinions could encourage teachers to give students similar tasks in math classes or in projects that integrate multiple subjects. This could also provide ideas for students’ creative work.
Teaching Mathematics in Hybrid Learning and Distance Learning: Student’s View
Authors: Puman Ella , Kritševskaja Aljona
Published: August 2024

In this paper, we describe an idea for mathematics lectures that involves using digital tools for first-year university students. Materials in the Moodle course include live broadcasts, lecture recordings, Moodle tests, sample solutions and videos. The aim of the paper is to find out from students’ feedback which digital tools help them understand the material better. We focus also on the tools used in the Desmos environment slides. Students’ feedback showed that using Desmos slides during the lecture helped them understand the theory better and try the tasks immediately. Graphical Desmos tools were the most appreciated because they helped to visualize the studied topic.
Effects of Different Intensities of Aerobic Exercise on Cardiorespiratory Fitness and Levels of Plasma Malondialdehyde and Superoxide Dismutase
Authors: Kim Chang-Gyun
Published: August 2024

OBJECTIVES This study aimed to compare the effects of different intensities of aerobic exercise on cardiorespiratory fitness (CRF), plasma malondialdehyde (MDA), and superoxide dismutase (SOD) levels before and after an 8-week exercise.METHODS Twenty-seven male university students were randomly divided into three intensity groups: light intensity (LI; 30-39% HRR), moderate intensity (MI; 40-59% HRR), and vigorous intensity (VI; 60-89% HRR). The study variables measured CRF factors such as maximal/peak oxygen uptake, ventilation, exercise time, and oxidative stress. MDA and SOD levels at rest, and following a graded exercise cessation before and after an 8-week exercise. Statistical analysis conducted two-way ANOVA with repeated measures after testing the normality of variables among groups using the Levene test.RESULTS The results showed significant increases in CRF factors, such as VO2 peak/max, absolute VO2, and exercise time at both moderate and vigorous intensities after 8 weeks. Furthermore, there were significant increases including ventilation at all three intensities after the 8-week exercise. The SOD level showed a significant difference in the low intensity exercise group, but there was no significant difference at the three intensities after exercise. Plasma MDA differed significantly at low and moderate intensities after exercise.CONCLUSIONS Based on these results, this study concluded significant improvements in cardiorespiratory fitness (CRF) factors such as VO2peak/max, absolute VO2, and exercise time in both moderate and vigorous intensities exercise groups after exercise of 8 weeks. There were significant increases at three intensities after exercise of 8 weeks in ventilation. SOD levels also showed an increase in the low-intensity exercise group, while plasma MDA decreased in low and moderate-intensity exercise groups.
The Effects of Untact Training on Health Fitness, Lipid Metabolism, and Psychological Factors Across Different Life Stages: A Non-systematic Domestic Review of the Literature
Authors: Park Ji Hwan , Son Somang , Yun Somi , Sim Hyeon
Published: August 2024

OBJECTIVES Given the increasing demand for untact home training due to its various advantages, numerous studies have been actively conducted both domestically and internationally to verify the exercise effects of untact home training interventions across different age groups. The purpose of this study is to investigate the effects of untact home training interventions on health fitness, lipid metabolism, and psychological factors throughout the life cycle.METHODS In this study, literature was searched for domestic academic papers published from January 1, 2020, to March 31, 2024, and a total of 35 papers were selected for final analysis. The study examined the subjects, types of exercise, intervention periods, measured factors, and effects, and significant findings were derived based on this analysis.RESULTS The results of the final selected studies indicate that most research measured variables such as health fitness, lipid metabolism, and psychological factors to confirm the effectiveness of untact home training interventions. While the effectiveness scores varied slightly across different variables, it was generally confirmed that positive improvements were observed in the intervention groups following participation in untact home training.CONCLUSIONS Based on these results, it can be concluded that untact home training interventions can have positive effects across various age groups and may serve as foundational data for developing and utilizing untact home training methods suitable for different stages of the life cycle. However, untact home training interventions that do not consider individual differences may not be sufficient to produce effective outcomes across various variables. Therefore, such interventions should be applied carefully, considering the characteristics of the participants. Furthermore, systematic and in-depth clinical comparative studies on this topic are needed in the future.
Effect of Gyrokinesis Exercise on Lower Extremity Edema, Balance Ability, and Fatigue in office Women Workers
Authors: Kim Mi-Kyung , Min Kyoung-Bin
Published: August 2024

OBJECTIVES This study aims to confirm the effect of Gyrokinesis exercise on lower extremity edema, balance ability, and fatigue in office women.METHODS Subjects were allocated to an exercise group (n=14) performing 60-minute Gyrokinesis sessions twice weekly for eight weeks, or a control group (n=13) wearing compression stockings during work hours. Evaluations included measuring calf and ankle circumferences for lower extremity edema, conducting single-leg stands with eyes closed and Y-balance tests for balance improvements, and administering the Fatigue Severity Scale (FSS) questionnaire to assess changes in fatigue.RESULTS First, significant reductions in ankle circumference and extracellular fluid ratio were observed in lower extremity edema. Second, while no interaction effects were found between dynamic and static balance abilities, the exercise group showed notable improvements. Third, the exercise group exhibited significant enhancements in fatigue levels.CONCLUSIONS Gyrokinesis exercise is effective in reducing lower extremity edema, improving balance ability, and reducing fatigue in office working women.
The effectiveness of electrified barriers to keep large mammals out of a fenced road corridor and a campground
Authors: Huijser Marcel P. ,   Western Transportation Institute
Published: August 2024

For this project the researchers investigated the effectiveness of electrified barriers designed to keep large mammals out of a fenced road corridor (Trans-Canada Highway through Banff and Yoho National Park) and a campground (Lake Louise Campground, Banff National Park). The barriers were designed for large ungulates (e.g. white-tailed deer, mule deer, elk, moose) and large mammal species with paws (e.g. black bear, grizzly bear). The barriers consisted of steel pipes that were partially electrified. None of the white-tailed deer, mule deer, elk, moose, black bears, grizzly bears, red foxes, and coyotes that were observed on the habitat side of the barriers crossed the electrified barriers into the fenced road corridor or the campground. A black bear attempting to exit the fenced road corridor failed to cross to the habitat side of the electrified barrier. Two red foxes and one wolverine did appear to exit the fenced road corridor to the habitat side of the electrified barrier, but these three crossings were all in winter when the voltage was likely compromised because of snow and road salt. In addition, crossings to the habitat side can be considered acceptable as they improve human safety on the main highway and keep the animals from being hit by vehicles. We conclude that, although sample sizes were limited, the electrified barriers (when voltage was adequate and when not filled with snow) were 100% effective in keeping both large ungulates and large species with paws out of a fenced road corridor and a campground.
Assessment of the carbon footprint of an aquaculture enterprise
Authors: Gladun Igor , Mayorova Ludmila
Published: August 2024

To ensure Russia's transition to an environmentally balanced development path, it is necessary to reduce anthropogenic pressure on the environment — to break economic growth and greenhouse gas emissions. The most significant sources of greenhouse gas emissions, in addition to industrial production, include the disposal and thermal treatment of waste generated in the fishing and fish processing industries. It is estimated that the amount of fish waste generated can be as high as 50 % of the catch or 50–75 % of the processed fish. Numerous studies are currently underway on the bioconversion of fish waste by black soldier fly larvae (Hermetia illucens), both to reduce greenhouse gas emissions and to produce fish feed for aquaculture enterprises. The article presents the results of a study of a comparative analysis of four different scenarios (utilization, composting, incineration and disposal) for greenhouse and acid gas emissions from the management of fish waste generated as a result of the operation of the Anyui fish hatchery. It is shown that the global warming potential was maximum when waste was composted (0.189 t CO2-eq. per 1 t of waste) and minimal when it was thermally decontaminated in a cremator (0.015 t CO2-eq.). During the disposal of fish waste by H. illucens larvae, the contribution of CO2 to the global warming potential was 99.57 %, emissions of methane (0.005 t CO2-eq.) and nitrous oxide (0.024 t CO2-eq.) were insignificant and significantly lower compared to other processing scenarios. Emissions of nitrogen oxides, sulfur dioxide, and carbon monoxide during utilization by H. illucens larvae were absent. During the thermal treatment of fish waste, the maximum acidifying effect was observed — 3.712 kg SO2-eq./kg of substance; during the disposal of waste at the MSW landfill, the emission of SO2 and NOx amounted to 0.4 kg
SO2-eq./kg.
Analysis of the features of using the industrial Internet of Things to ensure industrial and environmental safety
Authors: Iordanova Anastasia , Gladilin Daniil , Kurasova Julia , Persidskaya Kseniya
Published: August 2024

The article analyzes the main features of the use of the industrial Internet of Things in order to improve industrial and environmental safety at industrial enterprises. The authors analyzed statistical data on accidents at enterprises in Russia and the world, as a result of which certain industries were identified in which the number of such cases significantly exceeds the average. These include: transportation, manufacturing, and mining. According to these industries, the main dangerous and harmful factors are identified and possible options for reducing their impact on the employee's body using IoT technologies are presented. The article provides an overview of a generalized multi-level security management architecture based on an IoT-service-oriented architecture. It consists of four levels: the level of devices equipped with sensors; the level of an intermediate device; the network level; the interface level. This approach is a technology of cloud software solutions, because all necessary information is stored and processed through a web resource. The introduction of such a system can significantly reduce the number of accidents and other undesirable incidents that occur in the course of production activities. As an example, the authors analyzed and provided examples of the use of IoT technologies and service-oriented architecture that can be used to ensure the production and environmental safety of technological processes in the mining industry: the use of signal transmission systems based on multiple input and multiple output for communication in underground mines; the use of passive, active radio frequency identification tags, smart cards in underground mines for the detection of explosives, long-distance communication, tracking and monitoring of environmental parameters, etc. In addition, further prospects for the development of the described technologies are presented.
Impact of sanctions 2022–23 on the economic efficiency of the functioning of railway transport organizations in Russia (using the example of the Open Joint Stock Company «Russian Railways»)
Authors: Egorov Yuriy
Published: August 2024

The purpose of this research is to assess the impact of sanctions in 2022–23 on the economic efficiency of the functioning of railway transport organizations in Russia (using the example of the Open Joint Stock Company «Russian Railways») with the development of additional assessment tools. Various aspects of the impact of sanctions in 2022–23 on the Russian economy are considered by a number of authors. At the same time, the impact of sanctions in 2022–23 Russian railway transport is studied quite rarely; the issue of assessing the impact of sanctions on the economic efficiency of the functioning of Russian railway transport organizations is also rarely raised, which determines the relevance of this study. To carry out this assessment, the author has developed integral indicators of the economic efficiency of the organization's functioning: an integral indicator of profitability for net profit, an integral indicator of profitability for cash flows, an integral indicator of the economic efficiency of using fixed assets, an integral indicator of the economic efficiency of using working capital. Using the developed integral indicators and well-known indicators of the economic efficiency of the organization, it is shown that the impact of sanctions in 2022–23 on the economic efficiency of the functioning of the Open Joint Stock Company «Russian Railways» is practically absent. The assessment was carried out by comparing the values of indicators of economic efficiency of the organization’s functioning in 2022–23 with the values of these indicators in the base year 2019 (which is taken as a comparison base as a year conditionally without sanctions and without the influence of the coronavirus pandemic). The results obtained can be used for further research in the field of assessing the economic efficiency of organizations, including under sanctions.
Historia y formación ciudadana. Percepciones estudiantiles sobre la Historia en dos centros educativos de Alcalá de Henares (2016-2017)
Authors: Fernández Gonzalo García
Published: August 2024

Objetivos. Nos disponemos a conocer las percepciones que poseen estudiantes de segundo de bachillerato de dos centros educativos de Alcalá de Henares sobre la Historia. Adicionalmente, la investigación ambiciona la compresión de las implicaciones historiográficas subyacentes en las percepciones de los estudiantes observados respecto a la Historia. Metodología. Nuestra investigación cualitativa fue cimentada bajo un diseño de corte etnográfico para el estudio de percepciones estudiantiles, observándose un total de 196 estudiantes. Por otra parte, nos servimos de herramientas de estudio hermenéutico y de tipo histórico, para el estudio de currículos y textos escolares de Historia utilizados en ambos centros, tanto un nivel narrativo como a un nivel teórico-epistemológico. Resultados. Después de analizar y categorizar a los estudiantes según su comportamiento en clase (ideales, medios y rezagados) y sus percepciones (progresistas, conservadoras, moderadas, radicales), nos percatamos de que existen tres dimensiones para el entendimiento de la Historia: 1) epistemológica; 2) lógica-temporal; 3) narrativa-histórica. Conclusiones. Denotamos que los estudiantes observados, independientemente de su tipología de comportamiento o de percepción, visualizan a la Historia de forma ajena y distante. Así si mismo, comprendimos un contexto formativo sobre contenidos de Historia limitados por elementos teóricos y deontológicos obsoletos, que la sitúan en la enseñanza de relatos sobre la nación y contextos eurocéntricos. Entendimos que todo ello, tiene un impacto limitante en el espectro de la formación ciudadana, ya que impide una relación heurística entre el estudiantado y el contenido histórico para la compresión crítica de un presente complejo y en constante crisis.
Nomenclatural Notes in the Ornithocephalus Clade (Oncidiinae: Orchidaceae)
Authors: Royer Carla A. , de Brito A. L. V. Toscano , Smidt Eric C.
Published: August 2024

Abstract— Based on the recent phylogenetic study on Ornithocephalus clade, we propose ten new combinations to include the genus Eloyella in Dunstervillea.