bluuebunny/crossref_metadata_2025 huggingface dataset:
Комплекс пам’яток Київської університетської астрономічної обсерваторії
Authors: Казанцева Л. В. , Салата С. А.
Published: February 2025

У статті надано опис місцевості та оточення Астрономічної обсерваторії Київського національного університету імені Тараса Шевченка, зокрема загальний ландшафт та складники, розташовані в межах території пам’ятки. Роз’яснено сучасний статус обсер-ваторії як пам’ятки. Досліджено архітектуру головної будівлі обсерваторії, її призначен-ня, історія проєктування та автори проєктів, будівництво, зовнішні та внутрішні зміни. Розкрито історію спорудження, модернізації, деталі розміщення, технічні характеристики інших важливих будівель комплексу Астрономічної обсерваторії, зокрема професорсько-го флігеля, лабораторно-житлового корпусу, павільйону меридіанного круга. Уточнено перелік астрономів професорів, які працювали або проживали в будівлях обсерваторії, розглянутих у статті.
Меморіалізація травми в міському просторі Харкова
Authors: Ніколаєнко О. О.
Published: February 2025

Метою дослідження є визначення основних стратегій меморіалізації травматич- ного досвіду: як минулого, так і сучасного, – в ландшафтному просторі міста. Для цього проаналізовані монументальні композиції, що влаштовують як місця пам’яті та скорботи, а також – практики комеморації, спрямовані на вшанування пам’яті й закарбування колек- тивної травми. Наукова новизна полягає в застосуванні аналізу символічно-просторового й монументального означення травм у ландшафті м. Харкова, їхнього мистецько-культурного потенціалу та політичного змісту. В міському ландшафті за роки незалежності до місць пам’яті Другої світової війни додалися меморіали жертвам Голодоморів, афганської війни та Чорнобильської катастрофи. Колективні травми сучасності, спричинені російською агресією, ще усвідомлюються соціумом, однак їхня масштабність викликає потребу в облаштуванні місць пам’яті та скорботи, збереженні пам’яті про героїв і жертв у місь- кому просторі, влаштуванні заходів з їхнього вшанування. Одним із способів артикуляції травми можна вважати влаштування мистецьких ініціатив – стріт-арту чи перформенсів, що доносять глибину травми та є одним із засобів її осмислення, прийняття й подолання. Процес встановлення меморіальних об’єктів або здійснення топонімічних змін у місті вирізняється ситуативністю та непланомірністю, хоча ініціативи й активність громад- ських організацій засвідчують посилення їхньої ролі в процесі меморіалізації травми. Складність і невизначеність меморіалізації спричинена й тим фактором, що українське суспільство досі не ступило на шлях подолання травми, а намагається її осмислити, перебуваючи всередині.
Висвітлення військової допомоги Україні міжнародними партнерами та союзниками на сторінках газети «The Guardian» (Ґардіан) (лютий – серпень 2022 р.)
Authors: Надрага М. С. , Турчак О. В. , Теницький С. О.
Published: February 2025

У пропонованій статті представлено аналіз публікацій щодо надання військової допомоги Україні міжнародними партнерами та союзниками впродовж першого півріччя російсько-української війни. Обґрунтовується теза про те, що з початку широкомасштаб- ного вторгнення країни-партнери долучилися до надання всебічної посильної допомоги, зокрема, військової. Метою статті є привернення уваги дослідників до фактологічного матеріалу, який міститься в публікаціях зарубіжної преси та засвідчує інтерес громад- ськості й світового співтовариства до російсько-української війни. Увагу приділено факту поетапності, послідовності та узгодженості в процесі підготовки до надання цієї допомоги. Аналізуючи публікації, автори роблять висновок про надання Україні окремих видів летальної зброї з початку агресивного вторгнення. Однак деякі країни ще певний час зосереджувалися лише на наданні гуманітарної допомоги. Звернено увагу на те, як у ході надання допомоги змінювалися погляди лідерів світових держав щодо багаторічної політики заборони реекспорту зброї в зони конфлікту. Увага дослідників не оминула й діяльності міжнародних організацій. Важливим фактом є намір світових держав співп- рацювати з приватними виробниками озброєння для допомоги Україні в задоволені її військових потреб та платити за такі поставки. Акцентовано увагу на зустрічах союзників у Рамштайні та результатах щодо пошуку шляхів озброєння Києва в протистоянні росій- ському наступу. Важливою віхою став Закон про ленд-ліз для захисту демократії в Укра- їні, підписаний Дж. Байденом 10 травня 2022 р. Невід’ємним компонентом підтримки є навчання українських воїнів за кордоном. Зазначено, що, з огляду на велику кількість поставок, значну увагу приділяли механізму контролю за використанням наданої зброї. Робиться висновок, що, спираючись на публікації британської газети «Ґа́рдіан», можна детально проаналізувати процес ухвалення рішень щодо надання військової допомоги Україні, його змістовне наповнення та безпосередню реалізацію.
O jednom mogućem pristupu istraživanjima vulgarnosti u dijalektalnim govorima
Authors: Blažeka Đuro , Blažeka Mihaela
Published: February 2025

Budući da smatraju da je u dosadašnjim istraživanjima opsceno-vulgarnog sloja jezika terminologija vrlo nedosljedna, autori daju jedan prijedlog mogućeg razgraničenja termina. Temeljni termin bio bi vulgar-nost – rečenice ili sintagme s opscenim sadržajem u kojima se nalazi vulgarizam, ali ne nužno. One služe ispunjavanju različitih pragmatičkih funkcija, a čiju klasifikaciju autori pokušavaju razraditi i koja će biti podložna daljnjim razradama. Psovku kao termin vrlo su usko ograničili, a svode je na jednu od 14 funkcija vulgarnosti i odredili su je s tri neizostavna uvjeta: mora sadržavati vulgarizam, mora biti direktno upućena sugovorniku i izražavati seksualnu agresiju kojom se želi povrijediti govornik ili netko njemu blizak. Za oprimjeravanje im je poslužila vrlo bogata građa vulgarnosti iz govora Preloga, a usput su objasnili i neke jezične osobitosti u formiranju tog sloja jezika i radili usporedbe s nekim elementima Austinove teorije govornih činova.
Odyssean malaria in the Western Cape Province of South Africa
Authors: Mkhize Nondumiso , Buys Heloise
Published: February 2025

Due to the unexpected diagnosis of Odyssean malaria, cases are often missed, and the presentation is usually delayed resulting in severe complications. What makes these infections so intriguing is the lack of travel history from patients who acquire the infection while living in a non-endemic malaria area. We report the first case of Odyssean malaria in a young girl from Cape Town who presented multiple times to the health care services with a non-resolving fever amongst many other non-specific symptoms
Knowledge, practices, and influencers of antibiotic prescriptions of Nigerian doctors
Authors: Ugochukwu EF , Onubogu CU
Published: February 2025

Background: There is a dire need to preserve antibiotics currently in use to avert resistance. Appropriate use of antibiotics would ensure antimicrobial stewardship. Doctors are in the forefront of prescriptions. Their knowledge of and proper prescription practice as well as what influences their antibiotic prescriptions go a long way in mitigating antimicrobial resistance.Aim: To ascertain the knowledge, practices and influencers of antibiotic prescriptions of doctors in Nigeria.Methods: An online self-administered questionnaire on aspects of knowledge of when to prescribe antibiotics, actual prescription practice, and factors that influence prescription, was employed. Questionnaires were sent out in doctors’ social media groups as google forms soliciting for responses. Responses were automatically entered into google spreadsheets and data analysed using SPSS version 21.Results: A total of 258 doctors responded. The overall mean (SD) knowledge score (%) was 66.0±9.3 with a range of 40.0-93.3. Family physicians and paediatricians had higher mean knowledge scores than those in other specialities (p<0.001). The overall mean appropriate practice score was 66.8±8.4 with a range of 40.0-85.7. The mean proper practice scores were highest among the family physicians, paediatricians and public health physicians (p=0.002). The greater the years of medical practice the more the mean knowledge score (p=0.007) and likewise doctors in tertiary care knew more than those in secondary and primary care (p=0.002). Possession of prior information on antibiotic stewardship resulted in higher knowledge (p<0.001) and practice (p=0.015) scores, while having facility antibiotic protocols/ antibiotic stewardship committees was akin to better knowledge (p=0.032) and prescription practice (p=0.012). There was a weak though statistically significant positive linear relationship between knowledge and practice scores (rs=0.291, p<0.001. Knowledge accounted for only 9.2% (R2=0.092) of variability in practice scores. A 1% increase in knowledge score increased practice score by 0.3%. Major influencers of prescribing practice were history of prior use of antibiotics by the patient (97.3%), cost of antibiotics intended to be prescribed (95.3%), age of patient (93.1%), request for antibiotics by the patient (89.6%), and patients presenting with high fevers (70.5%).Conclusion: Demographic characteristics of respondents influenced knowledge but not necessarily practice. Knowledge of appropriate antibiotic prescription had little effect on actual prescribing practice. The factors that affected prescribing practice were previous training on AMS and availability of institutional protocols and treatment guidelines. It is recommended that all medical practitioners receive training on AMS and adhere to institutional treatment protocols.
Perceptions of caregivers and healthcare providers regarding vaccinations for children with immune mediated inflammatory disorders (IMIDs) in Nairobi, Kenya
Authors: Malande Oliver Ombeva , Chege Christine , Migowa Angela , Kigen Barnabas , Songok Julia Jerono , Nzoka Mutunga , Owino-Okongo Lawrence
Published: February 2025

Background: Children with immune mediated inflammatory disorders (IMIDs) are at an increased risk of various types of vaccine preventable diseases. Appropriate immunization practices are therefore key for survival, and for improving the treatment outcomes in these children. This study explored the perceptions of caregivers and healthcare workers regarding vaccination for children with IMIDs at Kenyatta national hospital and Getrude’s children hospital, in Nairobi Kenya.
Methods: This was a mixed-methods study involving interviewer administered questionnaires for caregivers, self-administered questionnaires for health workers, and focus group discussions for caregivers of children suffering from IMIDs and attending the rheumatology clinics at the Kenyatta National Hospital and Gertrude’s Children’s Hospital. The study included 103 primary caregivers of children aged 0-18 years with IMIDs and 76 healthcare workers.
Results: Most of the caregivers (80%) were female; and two thirds (66%) had attained secondary education or higher. Most (90.6%) caregivers believed that vaccines are safe, 88.2% that vaccines are effective, 97.1% had full trust in vaccines and would readily accept their children to be vaccinated. Further, the caregivers (92.5%) knew that their children could benefit from additional vaccines (other than the routine childhood EPI listed vaccines) and would support additional vaccines for their children if recommended by a doctor. However, only 10.6% (10/103) of caregivers reported that their children had already received at least one of the additional vaccines. Some caregivers (9.4%) expressed fears and misgivings about the additional vaccines for their children. These misgivings include the risk of adverse events following immunization that the children were too young for additional vaccines, or that the child was unwell at the time. The health workers supported the need for additional vaccines for children with IMIDs and vaccine education for caregivers and health workers.
Conclusion: Most caregivers and healthcare workers of children with IMIDs accepted and supported additional vaccines, over and above those administered in the routine EPI programme, for children with IMIDs. The biggest promoter of vaccine acceptance and uptake was recommendation of vaccination by health workers while potential barriers included vaccine safety concerns, inadequate vaccine knowledge and concerns of vaccine cost and accessibility.
Promoting public health in the face of disinformation
Authors: Geffen Nathan
Published: February 2025

Disinformation hampered the response to both the HIV and Covid pandemics. Nevertheless, for the most part scientifically sound public health messaging prevailed: today millions of South Africans are on antiretroviral treatment and during the Covid pandemic most of the most vulnerable people in the country got vaccinated. The aim of this article is to describe what strategies in the author's experience were the most effective for communicating public health messages. Ten tips are provided for help health workers more effectively spread sound public health advice.
Timosaponin AIII Enhances Radiosensitivity in Breast Cancer through Induction of ROS-Mediated DNA Damage and Apoptosis
Authors: Peng Huiting , Cui Bingqing , Wei Jianming , Yuan Min , Liu Wenjuan , Shi Jing , Liu Yuguo
Published: February 2025

Breast cancer is a commonly diagnosed cancer, while resistance to radiation therapy remains an important factor hindering the treatment of patients. Timosaponin AIII (Tim AIII) is a steroidal saponin from the Anemarrhena asphodeloides. Its pharmacologic effects and mechanisms for enhancing radiotherapy remain largely unknown. This study investigates Tim AIII ç and aims to unravel the underlying mechanisms. Experiments, including cell cloning, scratch assays, cell cycle, apoptosis assays, immunofluorescence staining, and reactive oxygen species (ROS) assessments, were conducted on breast cancer cell lines MDA-MB-231 and JIMT-1 to investigate the impact of Tim AIII combined with radiation. Western blot analyses were used to detect γ-H2AX expression, ROS-related pathways, ATM-CHK2, and AKT-MTOR pathways. Subcutaneous tumor experiments in nude mice confirmed in vivo radiation sensitization. When combined with radiation, Tim AIII significantly inhibited cell clone formation, impeded cancer cell migration, increased G2/M phase arrest and apoptosis. Immunofluorescence showed prolonged γ-H2AX signals. Molecular investigations indicated Tim AIII amplified radiation-induced ROS production, inducing ROS-mediated DNA damage and apoptosis. It activated ATM-CHK2 while inhibiting the AKT-MTOR pathway. Tim AIII enhances radiation sensitivity in breast cancer cells, both in vitro and in vivo. Through ROS-mediated DNA damage and apoptosis, activation of ATM/Chk2 and inhibition of the AKT-MTOR pathway induce G2/M phase arrest, ultimately boosting radiation sensitivity via the mitochondrial-mediated apoptotic pathway.
Comparative analysis of EGFR gene mutations (exon 20) in sinonasal papillomas of inverted and oncocytic types
Authors: Bakhtin A.A. , Dykhes N.A. , Karneeva O.V. , Tumanova E.L. , Kazakov A.A. , Demkin V.V. , Sapegina O.A.
Published: February 2025

Sinonasal papillomas are a group of benign, relatively rare tumors of the sinonasal tract with varying clinical courses. In the modern WHO classification, it is customary to distinguish three subtypes of sinonasal papillomas: the most common inverted type (ISP), oncocytic type (OSP) and exophytic type (ESP). Recently, the concept has emerged that the different types of sinonasal papillomas may not be variants of a single tumor, but rather separate tumors. Thus, OSP demonstrates KRAS mutations, and the pathogenesis of ISP is associated with EGFR mutations. Objective. To provide a comparative description of the EGFR gene (exon 20) based on the results of Sanger sequencing in sinonasal papillomas of inverted and oncocytic types. Material and methods. Sanger sequencing of the EGFR gene (exon 20) was performed in 83 cases of sinonasal papillomas, of which 17 were of OSP and 66 were ISP cases. In 20 cases, an additional immunohistochemical study with an antibody to EGFR was also performed. Results. When sequencing by Sanger of exon 20 of the EGFR gene in the ISP group, missense mutations were identified in 16 out of 66 cases, leading to a change in the value of the coding sequence of the gene, ultimately determining the formation of a different amino acid; this type of mutation was not identified in the OSP group. The most common mutation was at position 2622 in the form of G to A transition: in 47 cases of ISP (70%) and in 12 cases of OSP (71%). This mutation was synonymous and did not lead to an amino acid replacement in the synthesized protein. Thus, we did not find any significant differences in exon 20 of the EGFR gene between the ISP and OSP groups. In the ISP group, in 48 of 66 cases, multiple and single point mutations were noted, which we characterize as genetic heterogeneity.
Neuroendocrine tumor of the extrahepatic bile ducts. Case report and literature review
Authors: Suraev D.E. , Zagagov S.O. , Savelov N.A. , Ajazova A.A. , Kanner D.Yu. , Paklina O.V.
Published: February 2025

Neuroendocrine neoplasms (NENs) are heterogeneous tumors with a common phenotype. There are two fundamentally different groups of NENs: well differentiated with a low proliferative index, called neuroendocrine tumors (NETs) and poorly differentiated with a high proliferative index, called neuroendocrine carcinoma (NEC). Extrahepatic bile duct NETs (EBNETs) account for 0.2% to 2% of all gastrointestinal NETs and up to 2% of all malignant neoplasms of the extrahepatic bile ducts. To date, 114 cases of EBNETs have been described, with disease-free survival ranging from 2 to 240 months. In most cases, the tumors expressed Chromogranin A, Synaptophysin, CD56, and NSE. This report presents a rare case of an EBNET in a 61-year-old patient following resection of the extrahepatic bile ducts. The description includes data from radiological and ultrasound diagnostic methods, macro- and microscopic characteristics of the tumor, and immunohistochemical profile.
Diffuse changes in the brain in the acute phase of COVID-19 and after infection
Authors: Berliand A.N. , Anufriev P.L. , Kanibolotskiy A.A.
Published: February 2025

There is no consolidated opinion on the pathogenesis of neurological manifestations of COVID-19, especially after infection. A significant contribution to understanding the mechanisms of neuropathology in COVID-19 can be made by detailed morphologic studies of the brain with assessment of changes in different brain regions during different periods of the infection process. Objective. Clarification of the nature of brain morphologic changes and intracerebral virus invasion in COVID-19 and postinfection. Material and methods. The study included 15 patients who died during the acute phase of COVID-19 (11 people) or after an infection (4 people) without a history of acute focal changes in the brain or neurological diseases. In each case, 9 brain areas were assessed, including the cortex, hippocampus, brainstem (pons and medulla oblongata), cerebellum, basal ganglia, and central parts of the olfactory system. In addition to the histological study, an immunohistochemical study was performed using antibodies against CD8, Iba1, as well as SARS-CoV-2 proteins (S1 and N) and a semi-quantitative assessment of circulatory disorders, microglial reaction and expression of the SARS-CoV-2 S1 protein in the brain. Results. The neuropathological picture was similar in the acute and post-infectious phases of COVID-19: microcirculatory disorders, diffuse cerebral edema, ischemic-hypoxic neuronal changes, accumulations of corpora amylacea, gliosis, small mainly perivascular lymphocytic infiltrates with a predominance of CD8+ T cells, moderate microglial reaction, accumulation of SARS-CoV-2 S1 protein in the brain. The N protein of the virus was not detected in the brain. The most pronounced changes were observed in the brainstem, especially in the medulla oblongata, and the cerebellum. The severity of structural changes did not correlate with disease duration. S1 protein expression in the brain did not correlate with the severity of the microglial response or disease duration. Conclusion. The identified neuropathological changes in COVID-19 in the acute and post-infectious phases are nonspecific with a predominance of vascular disorders and microglial reaction and are most pronounced in the brain stem and cerebellum. The SARS-CoV-2 S1 protein can accumulate in neurons and be detected in the brain a year or more after infection.
Liver pathology in COVID-19
Authors: Krasnenkova S.F. , Zayratyants O.V. , Midiber K.Yu. , Mikhaleva L.M.
Published: February 2025

The literature review presents an analysis of the pathogenesis and pathological anatomy of liver damage in COVID-19. Liver damage with the steatosis, vascular disorders, mild portal and lobular inflammatory infiltration, cholestasis and clinically — liver failure is observed in majority of the patients with COVID-19. Chronic liver diseases with infection SARS-CoV-2 tend to decompensate, which significantly worsens the prognosis of the disease. Pathogenesis of liver damage in COVID19 is unclear. There was no convincing evidence for the hypothesis of cytotoxicity for hepatocytes or cholangiocytes by SARS-CoV-2. Similar liver morphological changes described by different authors suggest their nonspecific nature and multifactorial pathogenesis related to hypoxia, cytokin storm, systemic inflammatory response syndrome, sepsis and shock, Covid-associated angio- and coagulopathy, as well as drug-induced hepatotoxicity. Further research is needed to clarify the pathogenesis and pathological anatomy of the liver pathology in COVID-19.
Common Fixed Point Theorems Involving Cubic Terms of d(x, y) in b-Metric Spaces
Authors:   Associate Professor, Department of Mathematics, Vaish College, Rohtak, 124001, Haryana, India, Bansal Dinesh Rani , Reetu Reetu
Published: February 2025

Objective/Aim: To establish the existence and uniqueness of fixed points for self maps in b-metric spaces. Methods: We have used generalized 𝜑-weak contractive condition involving cubic terms of d(x, y) and weak compatibility of two maps in the setting of b-metric spaces. Findings: Some fixed point theorems for a self map and common fixed point theorems for two maps have been proved and some suitable examples are also given to justify the proven results. Novelty: In b-metric spaces, the existence of fixed points for mappings satisfying generalized 𝜑-weak contractive conditions involving cubic terms of d(x, y) has not been proved yet by others. Furthermore, our results extend and generalize the results of Dutta and Choudhury, Murthy and Prasad, Hao and Guan, Jain and Kaur, Petru, sel, A. and Petru, sel, J., Peng et. al. etc. Mathematics Subject Classification: 54H25, 47H10.

Keywords: Fixed Point, b-Metric Space, φ –Weak Contraction, Generalized φ –Weak Contraction, Weakly Compatible Mapping
Pandemic Geographies: An Ethnographic Enquiry into the Dynamics of Everyday Space During Covid-19 in India
Authors:   Researh Scholar, Department of Geography, University of Delhi, India, Anshuman Arnav , Bhairannavar Kiran
Published: February 2025

Objectives: To understand the notion of space/place and landscape in the context of mobility during the COVID-19 pandemic using a comparative analysis of a metropolitan city and a suburban town. Method: A mobile auto-ethnographic methodology was deployed to generate data by the first author during his travel on the 14th and 15th of June 2020, from his residence in New Delhi to Purnea - a sub-urban town in Bihar in the eastern part of India. Findings: Social distancing and contact tracing shaped a new spatial reality in the city of origin, the destination town and the mediating mobile spaces of transit. Mobility of people while regulated and channelized, opens new ways of making sense of space/place and landscape. Cab service providers in the metropolitan city of Delhi negotiated the pandemic induced geography of city-space through the abstract space of maps and routes. People on the train formed social bubbles to evade contact with the fellow travelers. The relationship between the metropolitan city and the small town was redefined. The small towns viewed metropolitan cities with suspicion, disdain and fear where bodies were seen as potential virus carriers that had to be contained and quarantined. The sub-urban station authorities followed stricter norms to manage the movement of potential infected bodies. Family members stigmatized and dissociated with the moved-in body through quarantine at home. The study reveals how people react to changes in space and movement, and give new meanings to it during an epidemic outbreak. Novelty: The study contributes to the literature on COVID-19 by focusing on mobility and movement during the pandemic between two locations of different scales and regions, and the dynamics that unfold.

Keywords: Everyday space, Mobility, India, COVID-19
A Hierarchical and Multi-Tiered Personalized Career Recommender System Tailored to Individual Aptitudes
Authors:   Department of Computer Science, Sullamussalam Science College Areekode, University of Calicut, Kerala, India, Rahim M Noushad , Basheer K P Mohamed
Published: February 2025

Objectives: To design and implement a hierarchical, multi-tiered career recommender system with real-world applications, that addresses data sparsity and cold-start limitations, while tackling the challenges posed by the low student-to-career counselor ratio in a context like India. The system aims to deliver automated, personalized career recommendations tailored to individual aptitudes, effectively guiding students toward appropriate educational pathways and contributing to optimizing the nation's human resource potential. Methods: This study has developed a novel hierarchical, multi-tiered recommendation system employing machine-learning models based on a content-based filtering approach. The model is built on a first-of-its-kind dataset comprising 612 unique real-world careers, curated by extracting ability profile information from the Occupational Information Network database (O*NET) and utilized a multi-tiered approach to deliver diverse yet personalized career recommendations, with visualizations of the recommended career clusters against the candidate’s user profile, providing clear insights into the rationale behind the system's recommendations. Findings: The system surpasses other career recommendation systems across multiple dimensions, demonstrating robust performance with accuracy, precision, recall, and f1-scores all exceeding 99%. It provides diverse career options aligned with the candidate’s profile through its unique multi-tiered outputs, while effectively addressing data sparsity and cold-start limitations. Novelty: The study curated a unique, first-of-its-kind dataset comprising 612 distinct careers, each mapped with their respective ability profile parameters. A novel hierarchical, multi-tiered recommendation engine was developed, introducing an innovative approach that enables the generation of diverse recommendations, overcoming the limited output capabilities characteristic of existing recommender systems.

Keywords: Artificial Intelligence, Career Counselling, Psychometric Tests, Career Recommender Systems, Multi­Tiered Architecture, Data Sparsity and Cold-Start Limitations
Analyzing App Reviews: A Comparative Evaluation of Machine Learning Algorithms on a Spanish Dataset
Authors: Limaylla-Lunarejo María Isabel , Condori-Fernandez Nelly , Luaces Miguel R.
Published: February 2025

Currently, the internet plays a main role in collecting and providing information on the needs and preferences of app users. App reviews contain valuable insights, such as bug reports, feature requests, and user feedback. However, manually analyzing these reviews is a time-consuming task.

In this paper, we conducted an experiment to automate the process of analyzing app reviews using machine learning algorithms. We utilized and translated the dataset from Gu et al. (2015) to Spanish, which contains approximately 34,000 reviews from several apps. Three algorithms were trained: Multinomial Naive Bayes, Logistic Regression, and Support Vector Machine, with hyperparameter optimization performed via Grid Search. Logistic Regression achieved the highest performance with a maximum F1-score of 0.74.
Open Source Simulator of a Control System Based on EEG Signals
Authors: Vieites Pérez Pelayo , Dapena Adriana , Laport Francisco
Published: February 2025

Brain-computer interfaces (BCIs) are systems that enable communication between a brain and a computer. They have a particularly significant impact on individuals with motor impairments, as they allow users to control devices without physical movement, thereby enhancing their independence and quality of life. Despite their potential, the cost of the devices and licenses required for their development is high.

This paper presents the results of a work aimed at developing an open-source BCI simulator that would use the user's eye state to interact with other gadgets. The application eases the testing of various classification algorithms, optimizes hyperparameters and sends messages to external devices.

Furthermore, it is a valuable educational tool that can be used in academic settings related to signal processing, machine learning and neural engineering.
Extended Reality Tools for Medical Training and Education
Authors: Pinto Mariana , Vilaça Adélio , Coelho Luís , Magalhães Renato , Veloso Rita
Published: February 2025

The integration of extended reality (XR) in medical education represents a cutting-edge approach to simulation-based training. This study critically assesses XR software for medical teaching, with a focus on compatibility, medical specialization, and licensing requirements. The findings highlight the significant use in anatomy (44%) and surgical applications (26%). Virtual and mixed reality are the dominant technologies in this field, with the U.S. accounting for 62% of the companies involved. Specifically, HoloAnatomy, tested on HoloLens 2 and evaluated by seven healthcare professionals using NASA-TLX, was deemed intuitive and effective, though high device costs limit broader adoption. In conclusion, XR technologies hold substantial potential for advancing medical education, but the cost barriers must be overcome to enable wider implementation.
Study and Implementation of Quantum Bayesian Networks
Authors: Mayorga Redondo Alejandro , Moret Bonillo Vicente
Published: February 2025

This project deals with the implementation of Bayesian networks, a type of artificial intelligence based on graph theory and conditional probability, in the quantum computing paradigm. Examples related to the world of sports will be used as input in order to test the developed model. Besides, a comparison between implementations in classical and quantum paradigms will be carried out, so their differences in performance and attributes can be appreciated. The work will conclude with a debate about quantum computing and its future as a basis for executing AI models.
VirManDC: Data Processing Centers Monitoring Tool Using Holographic Technology
Authors: Xuíz-García Adrián , Gómez Ángel , Mosteiro Alejandro
Published: February 2025

Monitoring of Data Centers requires constant supervision, which usually involves a high dedication of resources and attention on site, as well as a good knowledge of the structure and organization of the Data Center. However, the environmental characteristics of a Data Center, with low temperature and humidity conditions for optimal equipment operation, and high noise levels, make it advisable to reduce as much as possible the time spent by technical staff inside the building.

The main objective of this work is the implementation of a data center monitoring application using Microsoft HoloLens 2 mixed reality glasses as a holographic device. For this purpose, the CITIC data center will be represented holographically as it is in reality, allowing to mimic the real location of the work site and facilitating the understanding of the technician regarding the position of the monitored servers. In addition, it will be possible to interact with the virtual model and access each physical server separately, allowing to show the user a great amount of useful information about the status of that server in real time, and even showing the data corresponding to each virtual server assigned to a specific machine. Finally, it will be possible to perform various technically useful actions on the servers themselves, such as connecting via secure communication protocol for command execution or sending a reboot signal to the machine.
Characterization of Water Consumers in Urban Areas Using Artificial Intelligence and Data Analysis
Authors: Rubiños Manuel , Álvarez-Crespo Marta-María , Zayas-Gato Francisco , Calvo Rolle José Luis
Published: February 2025

This work presents the first steps of the integration of AI techniques in the field of urban water management, more precisely in the line of urban consumption forecasting and user characterization. For this purpose, different data visualization and clustering techniques are applied and the results are compared, in order to study which ones are more suitable for pattern extraction and detection. The resulting user profiles are then contrasted to determine common characteristics among the same group members and differences among others. Average daily consumption and variability are proposed as the variables on which the characterization is based.
Study and Solution of the Ginzburg-Landau Equation for Superconductivity Problems
Authors: Hernández Piñeiro Víctor , González Tabernero Víctor , Ferreiro Ferreiro Ana María
Published: February 2025

This work focuses on the study and numerical solution of the Ginzburg-Landau (hereafter referred to as GL) partial differential equation, which models the behavior of superconducting materials. Depending on its parameters, the Ginzburg-Landau model can exhibit chaotic states that are challenging to approximate numerically, requiring the use of high-order numerical schemes. In this work, the resolution of this model was addressed in both the 1D and 2D cases. In both cases, an IMEX-type method based on finite differences was used, which provided good results.
Personalized Recommendations in E-commerce: A Case Study on Sports and Outdoor Activities
Authors: Da-Concepcion-Sarrate Patricia , Fernandez-Lozano Carlos , Carballal Adrian , Cedron Francisco
Published: February 2025

Nowadays, recommendation systems have become essential tools in e-commerce and social networks, offering personalized content, product, and service suggestions based on user behaviour and preferences. This document focuses on collaborative filtering, which makes recommendations using users' past product ratings. Several collaborative filtering algorithms will be compared, including Alternating Least Squares (ALS), Non-negative Matrix Factorization (NMF), Singular Value Decomposition (SVD), Bayesian Personalized Ranking (BPR), and Neural Collaborative Filtering (NCF). These methods will be tested on a dataset of sports and outdoor products from Amazon. The performance will be evaluated with two types of metrics: for rating predictions, RMSE, MAE, and R²; and for ranking, Precision, Recall, and nDCG.
Mixed Reality in Surgery: Development of a Mixed Reality Application for Surgical Training
Authors: Lima Ana Carolina , Vilaça Adélio , Veloso Rita , Marques António , Pereira Javier , Magalhães Renato
Published: February 2025

Mixed reality (MR) technology combines the real and the virtual world in an innovative way, where the users can see and interact with both worlds at the same time, having several applications in surgical practice, planning, and training. A MR application was developed to be used in a head mounted display (Microsoft HoloLens 2) for surgical training of the anterior cruciate ligament reconstruction surgery, with the aim of indicating the position of the femoral tunnel. This application was tested by 11 surgeons of the Centro Hospitalar Universitário de Santo António, who have all completed the simulation successfully, with an average time of under a minute. These surgeons answered an inquiry of satisfaction, where they all highlighted the potential that MR has in surgical training.
Респираторная медицина : руководство : в 5 т. 3-е изд.,
доп. и перераб. Т. 5.
Authors: Чучалин А. Г.
Published: February 2025

Пятый том руководства «Респираторная медицина» посвящен актуальным вопросам современной пульмонологии – патофизиологии и лечению дыхательной недостаточности, среди которых особое место занимают обновленные разделы по респираторной поддержке и трансплантации легких. Несомненный интерес читателей вызовет раздел по бронхолегочной реабилитации, медико-социальная значимость которой резко возросла в период после пандемии новой коронавирусной инфекции. Впервые представлены данные о применении в лечебно-реабилитационных программах медицинских газов, а также об инновационной организационной модели данного метода лечения – респираторном салоне. Традиционно значимыми являются вопросы организации пульмонологической помощи населению, включая новейшие методы удаленного мониторинга пациентов в домашних условиях, и медицинской экспертизы при бронхолегочных заболеваниях, современные подходы к которым представлены в данном томе. Заключительный раздел объединяет вопросы формирования современной модели врача легочной медицины и его профессиональной самоподготовки, что имеет основополагающее значение в развитии современной пульмонологии.

В настоящем издании, составленном с учетом актуальных клинических рекомендаций, рассматриваются вопросы клиники, диагностики и лечения основных заболеваний респираторной системы. Руководство предназначено для повышения квалификации широкого круга врачей: терапевтов, пульмонологов, фтизиатров, аллергологов и иммунологов, онкологов, хирургов, оториноларингологов, педиатров, инфекционистов, патологоанатомов и представителей смежных специальностей. Также издание адресовано студентам старших курсов медицинских вузов, ординаторам, аспирантам и может быть использовано в качестве учебника для подготовки к практическим занятиям и итоговой государственной аттестации.
Impact of Mobile-Facilitated Peer Feedback Platform on Improving the Accuracy of Spoken English: An Experimental Study
Authors:   Department of English, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Alkharj, Kingdom of Saudi Arabia, Alam Sohaib
Published: February 2025

Peer Assessment (PA) has reformed the conventional teacher-centred assessment by adopting a more learner-oriented approach. This instructional strategy, especially in its online design, has gained popularity, although its integration into traditional classroom environments presents noteworthy challenges. The present study aims to assess the efficacy of Mobile-facilitated peer feedback platform on improving the accuracy of Spoken English. In this study, a Mobile-Facilitated Peer Feedback Platform (MF-PFP) employing Instant Response System (IRS) mechanisms was introduced to enhance spoken English by addressing grammatical errors (such as articles, prepositions, tenses, and sentence structures) among Indian ESL learners, specifically those in the 12th grade. The experimental study was used to assess the efficacy of this method in English language class for Indian secondary schools. The participants were selected using random sampling. The analysis involved 132 participants, with half of the students (66) in the experimental group utilizing the MF-PFP method, while the other half adhered to the traditional teacher-led assessment approach. The data were analysed using Repeated Measure ANOVA test. The results demonstrate that the MF-PFP approach significantly enhances students’ spoken accuracy for article (mean = 4.13), prepositions (mean = 4.485), tense (mean = 3.53) and sentence structure (mean = 1.12) by reducing grammatical errors for article (mean = 2.93), prepositions (mean = 3.634), tense (mean = 1.92) and sentence structure (mean = 0.71) in their English learning process. The study’s findings may incorporate lessons for teaching the English language, particularly for spoken English grammar.
Augmented Reality with A Cognitive Conflict Model and STEM Integration on Newton’s Universal Law of Gravitation: Does Practicing Practical Learning Support Scientific Literacy?
Authors:   Department of Physics, Universitas Negeri Padang, Padang, Indonesia, Mufit Fatni
Published: February 2025

The presence of technology supports innovative learning in overcoming limited learning problems in discussing abstract material objects. AR is one of the technologies that supports simulation in explaining complex and abstract scientific phenomena. This research aims to design AR with a cognitive conflict model that integrates Science, Technology, Engineering, and Mathematics (STEM) into Newton’s universal law of gravitation. The method used in this research was the stages of the Plomp model design. The research stage includes the design product, self-evaluation, validity, practicality, and effectiveness tests. Data in the research were obtained using validity instruments, practicality instruments, and scientific literacy tests. The product was designed as an AR application in APK format that could be installed on smartphones, containing material on Newton’s universal law of gravitation using a cognitive conflict model approach integrated with STEM concepts. The average validity test result was 0.945, categorized as valid. In the practicality test, one-to-one and small-group evaluations yielded scores of 99.58 and 91.44, categorized as very practical. The effectiveness test results showed a %N-gain improvement in learning outcomes of 59%, categorized as moderate. The results of the paired sample t-test revealed that AR significantly impacted the improvement of students’ scientific literacy abilities. With a cognitive conflict model integrating STEM into Newton’s universal law of gravitation, AR has been validated as valid, practical, and effective. Thus, the developed product has supported practical and effective learning in improve students’ scientific literacy abilities related to Newton’s universal law of gravitation. In further research, other researchers are encouraged to assess effectiveness by incorporating variables related to 21st-century skills and high-level technologies, such as virtual reality and the metaverse.
Beyond the Algorithm: Reconciling Generative AI and Human Agency in Academic Writing Education
Authors: Han Yaoying
Published: February 2025

This study examines the transformative role of generative AI (e.g., ChatGPT, Grammarly) in academic writing education, focusing on its dual capacity to enhance technical proficiency while challenging originality and critical thinking. Drawing on a mixed-methods analysis of 300 undergraduates and 45 educators across eight universities, this paper reveals that structured AI integration improves grammar and citation accuracy by 32% but correlates with a 19% decline in argument originality. By synthesizing Vygotskian scaffolding theory with posthumanist pedagogy, we propose a co-creative framework emphasizing transparency, phased tool usage, and adaptive assessment to preserve human agency in the AI era.
Myth, Silence, Reality. Creating Memory in the Post-War Literary Reportage on Szczecin
Authors: Wijas Jędrzej
Published: February 2025

Powieściopisarze i reportażyści na polskich Ziemiach Zachodnich po 1945 roku mieli podwójne zadanie ideologiczne. Oprócz wdrażania komunizmu według modelu sowieckiego, ich teksty miały dyskursywnie „zagospodarować” nowe ziemie. Oznaczało to „uczynienie ich polskimi” w świadomości społecznej w ekspresowym tempie, przy jednoczesnym negowaniu niemieckiej przeszłości. Reportaż, gatunek non-fiction na pograniczu literatury i dziennikarstwa, cieszył się zaufaniem i wiarygodnością dzięki bliskości z rzeczywistością. Tym samym był również atrakcyjny dla politycznej propagandy narodowego komunizmu. Mimo że strategie reportażystów różniły się, były to jedynie różnice odcieni. Czytanie tych tekstów z dzisiejszej perspektywy pozwala zidentyfikować wspólne taktyki, które prowadziły do stworzenia nowej pamięci kulturowej i nowej tożsamości.

Artykuł ma na celu rzucenie światła na skomplikowaną sytuację reportażu po 1945 roku w polskim Szczecinie. W szczególności skupia się na uwikłaniu reportażu i praktykach dyskursywnych zmierzających do „zawłaszczenia” pamięci o dawnym niemieckim mieście oraz „kreowania” nowej polskiej pamięci o Szczecinie. Analizowana literatura obejmuje grupę reportaży poświęconych Szczecinowi, napisanych w okresie Polskiej Rzeczypospolitej Ludowej. Inspiracja metodologiczna jest dwojaka. Z jednej strony pochodzi ze współczesnych interdyscyplinarnych badań nad Ziemiami Zachodnimi i teoretycznej refleksji nad mediami pamięci, z drugiej zaś – ze społeczno-kulturowej specyfiki reportażu.
AGRICULTURA FAMILIAR NO MUNICÍPIO DE MORRO REDONDO-RS: EXPERIÊNCIAS COM O PROJETO QUINTAIS ORGÂNICOS DE FRUTAS
Authors: Wiegand Paulo Sergio , Caetano Costa Maria Regina , Pires de Oliveira Rérinton Joabél , Sanches Suzuki Luis Eduardo Akiyoshi
Published: February 2025

O presente estudo é parte do trabalho de conclusão de curso em Geografia (Licenciatura) do primeiro autor, que teve como objetivos caracterizar o Projeto Quintais Orgânicos de Frutas junto a agricultores familiares de Morro Redondo-RS e analisar os impactos do projeto na vida destes agricultores.  Contou-se com uma pesquisa qualitativa, coletando informações de seis propriedades a partir de questões norteadoras. De acordo com os dados obtidos através da pesquisa de campo identificou-se a motivação dos envolvidos em cultivar seus quintais, associado com outras atividades de fonte de renda externa. Também constatou-se a potencialidade dos quintais orgânicos para produção de alimentos para o autoconsumo, bem como de pessoas ligadas aos beneficiários e comercialização do excedente, assim como os benefícios resultantes da atividade de cultivo nos mesmos, como o bem-estar, a intensificação da relação familiar.
Los pueblos indígenas de Canadá y la defensa de sus territorios sagrados Análisis sociológico y jurisprudencial
Authors:   Universitat Jaume I, Reguart Serra Nuria
Published: February 2025

Los indios, inuits y métis de Canadá han ejercido, a lo largo de la historia, una defensa constante e imperturbable de sus territorios sagrados ante cualquier amenaza que haya cernido sobre ellos. En la actualidad, los acaparamientos empresariales de aquellos representan la principal preocupación de estos pueblos, quienes no han dudado en perseguir su integridad por la vía judicial ante situaciones específicas de conflicto. El objetivo principal de esta investigación radica en el análisis sociológico y jurisprudencial de este tipo de disputas en las que se ha producido la afectación de las creencias religiosas del pueblo indígena cuyo territorio se ha visto acaparado. Con esta finalidad, tras el estudio de los pilares fundamentales sobre los que se edifica el derecho aborigen canadiense, se ha procedido a clasificar una selección de casos judiciales en tres grupos distintos: aquellos en que, pese a perseguir la protección de lugares sagrados, esta condición no se menciona; otros en los que explícitamente se reivindica la naturaleza sagrada del lugar que se pretendía acaparar, si bien como aspecto accesorio a la disputa principal; y, por último, aquellos supuestos en que la pretensión principal del pueblo afectado se basa en la violación de su derecho de libertad religiosa. Los resultados obtenidos tras el análisis de más de quince casos en torno a esta problemática son preocupantes, al no haber recibido un tratamiento acorde con los estándares internacionales al respecto; si bien la última Sentencia examinada representa la luz al final del túnel que abre un nuevo horizonte para la libertad religiosa de estos pueblos.