bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estudio longitudinal de la respuesta de anticuerpos tras la vacunación contra el SARS-CoV-2 con la vacuna BNT162b2 de Pfizer-BioNtech
Authors: Robles Navas Leandra J. , Ortega Huete Juan J. , Juliá Sanchis María L. , Bravo Miró Jorge S. , Sánchez Serezade Cervera , Gasset Ricardo Molina 
Published: September 2023

Resumen

Objetivos
Se realizó un estudio para evaluar la inmunidad de trabajadores sanitarios y no sanitarios del área de salud de Alcoy (España), tras haber recibido tres dosis de la vacuna de Pfizer-BioNTech y analizar su relación con factores individuales.

Métodos
Se llevó a cabo un estudio prospectivo, observacional, longitudinal, analítico, destinado a observar la inmunogenicidad en profesionales sanitarios y no sanitarios del Hospital Virgen de los Lirios, posterior a la administración de tres dosis de la vacuna de Pfizer-BioNTech. Se determinó la concentración de anticuerpos IgG frente a la proteína spike del SARS-CoV-2. La presencia de COVID-19 se identificó mediante detección cualitativa de anticuerpos IgG contra la proteína de la nucleocápside. Las muestras de los voluntarios se analizaron a los 15 días, 3 meses, y 6 meses de recibir la segunda dosis de la vacuna, y a los 12 meses de la tercera dosis (dosis de refuerzo). Se extrajeron datos demográficos, así como sobre factores de riesgo y el uso de fármacos inmunosupresores. Los análisis estadísticos se realizaron con el programa SPSS. Los niveles medios de anticuerpos a lo largo del tiempo se compararon mediante ANOVA.

Resultados
La participación fue del 99,5 % (199/200). Las concentraciones de IgG fueron superiores en los hombres y en los sujetos obesos. No se observaron variaciones significativas con respecto a factores como el hábito tabáquico.

Conclusiones
Todos los participantes desarrollaron inmunidad humoral, excepto tres sujetos, que estaban recibiendo un tratamiento inmunosupresor. Los participantes con infección previa de COVID-19 presentaron mayores niveles de anticuerpos.
Investigating in-class and after-class boredom among advanced learners of English: intensity, interrelationships and learner profiles
Authors: Pawlak Mirosław , Kruk Mariusz , Csizér Kata , Zawodniak Joanna 
Published: September 2023

Abstract
Although the number of studies into boredom in second and/or foreign language (L2) learning is evidently on the rise and our understanding of this negative emotion has been considerably extended, surprisingly, empirical evidence is still scant with respect to boredom experienced in out-of-school situations. This study addresses this gap by: (1) examining the relative contribution of factors underlying in-class and after-class boredom, (2) investigating relationships among these factors, (3) identifying distinct learner profiles connected with these factors, and (4) exploring the role of group-related variables in this respect. The data were collected from 107 Polish university students majoring in English through two tools designed for this purpose. The results demonstrated that in-class and after-class boredom are distinct yet multidimensional constructs and factors underpinning them cannot be easily separated. Four in-class and after-class boredom-specific cluster groups were identified and the impact of gender and attainment measures for some of these factors was found. Future research directions are discussed as well.
A methodological approach for detecting multiple faults in wind turbine blades based on vibration signals and machine learning
Authors: Ogaili Ahmed Ali Farhan , Jaber Alaa Abdulhady , Hamzah Mohsin Noori 
Published: September 2023

Abstract
Wind turbines generate clean and renewable energy for the international market. The most ‎‎important aspect of wind turbine maintenance is reducing failures, downtime, and operating and maintenance expenses. ‎This study aims to detect multiple faults exhibited by wind turbine blades; failures such as cracks (tip crack, mid-span crack, and crack ‎near the root) were observed in the blades at different locations. The research suggests a new approach, incorporating vibration signals and machine learning techniques to identify various failures in wind turbine blades. The technology of ranking features such as ReliefF algorithms, chi-squares, and information gains was adopted to discuss a method framework to diagnose several problems in wind turbine blades, such as cracks in different locations. The k-nearest neighbors (KNNs), support vector machines, and random forests are used to classify data based on measured vibration signals. The eight main time-domain features are calculated from the vibration signals. The proposed methodology was validated using four databases. The results showed good classification accuracy in four databases, with at least three non-conventional features in each database’s top nine features of the three classification techniques. The results also showed that when the ReliefF selection algorithm is applied with the KNN classification algorithm, it generates the highest classification accuracy under all failure conditions, and the value is 97%. Finally, the performance of the proposed classification model is compared with other machine learning classification models, and a promising result is obtained. ‎
Smart robots’ virus defense using data mining technology
Authors: Ye Jiao , Patel Hemant N. , Meena Sankaranamasivayam , Maaliw Renato R. , Ajibade Samuel-Soma M. , Keshta Ismail 
Published: September 2023

Abstract
In order to realize online detection and control of network viruses in robots, the authors propose a data mining-based anti-virus solution for smart robots. First, using internet of things (IoT) intrusion prevention system design method based on network intrusion signal detection and feedforward modulation filtering design, the overall design description and function analysis are carried out, and then the intrusion signal detection algorithm is designed, and finally, the hardware design and software development for a breach protection solution for the IoT are completed, and the integrated design of the system is realized. The findings demonstrated that based on the mean value of 10,000 tests, the IoT’s average packet loss rate is 0. Conclusion: This system has high accuracy, good performance, and strong compatibility and friendliness.
Existence of solutions for semilinear retarded equations with non-instantaneous impulses, non-local conditions, and infinite delay
Authors: Leiva Hugo , Garcia Katherine , Lucena Euro 
Published: September 2023

Abstract
In this work, we investigate the existence and uniqueness of solutions for retarded equations with non-instantaneous impulses, non-local conditions, and infinite delay. To achieve this goal, we select an appropriate phase space that satisfies the axiomatic theory developed by Hale and Kato for studying differential equations with infinite delay. Then, we reformulate the problem of existence of solutions as the problem of finding fixed points of an operator. To this end, we apply the Karakostas fixed point theorem, which is an extension of the well-known Krasnoselskii fixed point theorem. Under certain conditions, we establish the uniqueness of solutions for our problem. Finally, we analyze the prolongation of solutions and demonstrate that, given certain conditions, these solutions are globally defined. Our research has important implications for the study of delayed dynamical systems, including models of population dynamics, physiological processes, and engineering systems.
Mid-infrared integrated electro-optic modulators: a review
Authors: Xu Tianqi , Dong Yuan , Zhong Qize , Zheng Shaonan , Qiu Yang , Zhao Xingyan , Jia Lianxi , Lee ChengKuo , Hu Ting 
Published: September 2023

AbstractIntegrated mid-infrared (MIR) photonics have various applications in optical fiber communication, spectral detection and identification, free-space communication, and light detection and ranging, etc. The MIR electro-optic (EO) modulator, which is one of the key components of MIR integrated photonic systems, has attracted a lot of research interests. In this paper, we review the reported integrated MIR EO modulators based on different modulation mechanisms and material platforms. The recent research progresses and challenges of MIR EO modulators are presented and discussed. The unique advantages and the corresponding applications of each type of MIR modulators are summarized as well. In the end, we provide our perspectives of a few areas in integrated MIR modulators that are worthy for research attention in future.
Inverse design of all-dielectric metasurfaces with accidental bound states in the continuum
Authors: Gladyshev Sergei , Karamanos Theodosios D. , Kuhn Lina , Beutel Dominik , Weiss Thomas , Rockstuhl Carsten , Bogdanov Andrey 
Published: September 2023

Abstract
Metasurfaces with bound states in the continuum (BICs) have proven to be a powerful platform for drastically enhancing light–matter interactions, improving biosensing, and precisely manipulating near- and far-fields. However, engineering metasurfaces to provide an on-demand spectral and angular position for a BIC remains a prime challenge. A conventional solution involves a fine adjustment of geometrical parameters, requiring multiple time-consuming calculations. In this work, to circumvent such tedious processes, we develop a physics-inspired, inverse design method on all-dielectric metasurfaces for an on-demand spectral and angular position of a BIC. Our suggested method predicts the core–shell particles that constitute the unit cell of the metasurface, while considering practical limitations on geometry and available materials. Our method is based on a smart combination of a semi-analytical solution, for predicting the required dipolar Mie coefficients of the meta-atom, and a machine learning algorithm, for finding a practical design of the meta-atom that provides these Mie coefficients. Although our approach is exemplified in designing a metasurface sustaining a BIC, it can, also, be applied to many more objective functions. With that, we pave the way toward a general framework for the inverse design of metasurfaces in specific and nanophotonic structures in general.
A functional approach to the formal mismatches of indexation markers
Authors: Zingler Tim 
Published: September 2023

AbstractThis paper argues that indexation markers (i.e., argument-indexing agreement markers and/or pronouns) show a wider range of formal mismatches across languages than the exponents of other inflectional categories. These mismatches are defined in terms of mixed behavior with respect to different criteria of wordhood. The mismatches that the indexation markers (or “indexes”) show include extrametricality with respect to reduplication and “mobility” in that they can occur in different slots of otherwise identical word forms. Other indexes can freely occur on either member of a phrase-level construction or behave like full-fledged affixes in one context but like full-fledged words in another. The claim that the range of these traits is extraordinary is based on a larger project, (Zingler, Tim. 2020.Wordhood issues: Typology and grammaticalization. Albuquerque: University of New Mexico PhD dissertation), which in addition to indexes investigates mismatches among case, definiteness, and tense markers. The explanations offered for this behavior primarily rely on the manner in which reference is established in discourse and on the different diachronic pathways for which these usage patterns pave the way. Another major conclusion is that the indexes described here constitute a formally heterogeneous set that cannot be easily subsumed under the label of “clitics.”
The Swedish School Meal Heritage — Memories of Food, Taste, and Commensality
Authors: Prell Hillevi , Sporre Cecilia Magnusson 
Published: September 2023

AbstractIn Sweden, free school lunch has been served for more than a hundred years, and it is now a democratic right of all elementary school children. The school meal has always been associated with different opinions and subject to much debate. The aim of the study is to explore school meal food and taste memories in a convenient sample of Swedish adults. A web-based survey was carried out in the summer of 2020. The 246 respondents attended school between the 1940s and the early 2000s. The material was collectively analyzed using NVivo 12 Pro (QSR International), resulting in two overarching themes. “The traditional school food heritage” theme consisted of accounts of traditional Swedish food through the ages and meanings attached to it. Memories were connected to likes and dislikes of certain foods and dishes. “The social school food heritage” theme consisted of accounts of coercion, control, and peer pressure, but also joy, friendship, and commensality. The Swedish school meal is a shared experience surrounded by strong feelings and memories regarding the food and the context. It means a lot both culturally and socially, acting as a carrier of a common food heritage.
RESPEITO, HUMILDADE, PROCEDER E RESPONSABILIDADE: A CATEGORIA "SUJEITO-HOMEM" COMO APROXIMAÇÃO ENTRE “MUNDO DO CRIME” E MASCULINIDADES PERFORMATIVAS
Authors: Oliveira João Victor Borri de 
Published: September 2023

Este trabalho se insere na interface de três debates sociológicos contemporâneos: juventudes, masculinidades e “mundo do crime”. Partindo de uma pesquisa etnográfica com jovens em cumprimento de medidas socioeducativas em meio aberto em São Carlos (cidade do interior de São Paulo), proponho uma reflexão acerca da categoria “sujeito-homem”. Considerando a perspectiva de que existem múltiplas performances de masculinidades, o meu foco é refletir em como os elementos dessas masculinidades atravessam as práticas, sociabilidades e experiências no “mundo do crime” (FELTRAN, 2008a). Para isso, irei explorar a categoria de “sujeito-homem” como um caso específico desse pensamento conjunto. O “sujeito-homem” é um jovem adulto, que evoca signos de respeito, humildade, proceder e responsabilidade ao realizar sua performance.
Results of transjugular intrahepatic portosystemic shunt combined with selective gastric vein embolization
Authors: Sapronova N. G. , Kalinin D. S. , Kosovtsev E. V. , Khoronko Yu. V. , Stagniev D. V. , Khoronko E. Yu. , Kosovtsev R. E. 
Published: September 2023

Aim. To improve the outcomes of surgical treatment of patients with cirrhosis complicated by clinically significant portal hypertension by performing TIPS with selective embolization of gastric veins.Materials and methods. The authors explored the immediate and long-term outcomes of treatment of 62 patients with liver cirrhosis: group I included 27 patients who underwent TIPS with selective embolization of one left gastric vein; group II included 35 patients who underwent TIPS with selective embolization of ≥2 gastric veins. The authors tested a non-invasive method for predicting the risk of bleeding from gastric and oesophageal varices after TIPS with selective embolization of gastric veins and compared MRI and EGD results before and after the surgery (n = 14).Results. The maximum follow-up duration comprised 72 months. Bleeding from the oesophageal veins was not reported in the early period after TIPS with embolization of the left gastric vein, however, the long-term bleeding developed in 2 patients (7.4%). In 6–72 months following TIPS with embolization of the left gastric vein and posterior gastric vein, as well as short gastric veins (when indicated), no recurrences of variceal bleeding appeared. The method of predicting the risk of bleeding after TIPS proved to be effective in all 14 patients in the follow-up period of 6 months (invention application No. 2022129022).Conclusion. The obtained results confirmed the efficacy of TIPS combined with gastric vein embolization. The unique patent solution determined the technique, indications and peculiarities of the intervention.
Determination of the optimal reconstruction for pancreaticoduodenal resection based on modified scintigraphy of gastrointestinal motility
Authors: Shabunin A. V. , Bedin V. V. , Tavobilov M. M. , Karpov A. A. , Karalkin A. V. , Vasilenko E. I. , Abramov K. A. , Lantsynova A. V. 
Published: September 2023

Aim. To improve the outcomes of pancreaticoduodenal resection by determining the optimal reconstruction based on objective assessment of the functional state of the upper gastrointestinal tract using a modified “double” scintigraphic study.Materials and methods. 147 pancreaticoduodenal resections were performed in the period of 2016–2022. Patients underwent “double” scintigraphic study on days 30 and 90 after surgery. The mean age of the patients was 59.6 years (23–83); the male to female ratio was 1.27:1. All patients underwent gastropancreatoduodenal resection or pancreatoduodenal resection with pylorus preservation. The patients were divided into 3 groups according to the variant of the reconstructive stage of surgery. Group 1 underwent reconstruction according to Child, group 2 – Child reconstruction and interintestinal anastomosis formation according to Brown, the reconstructive stage in group 3 involved Roux-en-Y isolation of the small intestine (Roux-en-Y reconstruction).Results. “Double” scintigraphic study revealed that the best result on the 30th and 90th postoperative days was observed in patients who underwent pancreaticoduodenal resection with pylorus preservation, reconstructive stage according to Child and formation of interintestinal anastomosis after Brown.Conclusion. “Double” scintigraphy is an effective procedure to determine the motility of the stomach, biliodigestive anastomosis and motility of the small intestine. As a result, the optimal reconstruction after pancreaticoduodenal resection was determined in patients with neoplasms of the pancreatic head or the periampullary region and chronic pancreatitis.
Non-invasive assessment of destructive changes in the gallbladder and severity of acute cholecystitis
Authors: Timerbulatov M. V. , Yamalov R. A. , Timerbulatov Sh. V. , Kakaullina L. N. , Garipov R. M. , Gafarova A. R. , Timerbulatov V. M. , Garaev R. R. 
Published: September 2023

Aim. To study the potential of ultrasound examination for assessment of pathomorphological changes in the gallbladder wall according to A1 and A2 criteria and severity of acute cholecystitis (G1-G3 score).Materials and methods. The authors analyzed the results of examination and treatment of 556 patients with acute cholecystitis for the last 2 years. The study involved clinical, laboratory and ultrasound results, their coincidence with the results of histological examination of the removed gallbladder.Results. Clinical and laboratory data coincided with histopathological data in G1 in 84.9% of cases, G2 – in 74.5%, G3 – in 63.2%; ultrasound findings coincided with histopathological data in A1 in 81.54% of cases, in A2 – in 86.59%. The incidence of postoperative complications in G1 comprised 4.6%, in G2 – 8.4%, in G3 – 32.1%, in A1 – 6.8%, and in A2 – 27.7%. Fatal outcomes appeared only in G3 (3.77%) and A2 (2.12%) patients, the overall postoperative mortality was 0.42% and the incidence of postoperative complications was 10.94%.Conclusion. Ultrasound examination in 86.6% of patients with acute cholecystitis enables pathomorphological changes in the gallbladder wall to be evaluated, which significantly facilitates decision making about the timing and extent of surgical intervention.
HR Functions Productivity Boost by using AI
Authors: Kaushik Priyanka , Miglani Sumit , Shandilya Ishaan , Singh Avi , Saini Disha , Singh Aaditya 
Published: September 2023

In today's fast-paced world, the Human Resources (HR) department plays a pivotal role in the success of any organization. With a plethora of tasks to manage, the HR team often faces the daunting challenge of screening and selecting the best candidates for various positions. To streamline this process, we propose a novel system that integrates the power of Kruskal algorithm for resume screening, conducting a qualifying test called "BTNT," and psychological testing like Emotional Intelligence to analyze the shortlisted candidates. Our proposed system utilizes a Knapsack approach under Dynamic Programming to suggest the most suitable candidates for HR roles. By automating these tedious HR tasks through Artificial Intelligence (AI), we ensure a faster, more accurate, and cost-effective selection process.
Our research paper presents a detailed analysis of the proposed system's effectiveness and showcases the benefits of adopting this innovative approach. We believe that this cutting-edge system will revolutionize the HR industry by providing an efficient, objective, and unbiased selection process. The BTNT test's incorporation will help identify candidates' technical skills, while the psychological test will highlight their soft skills. This holistic approach ensures that organizations not only hire the best-fit candidates but also create a positive work environment that fosters growth and development. Our research paper is a must-read for any HR professional looking to optimize their recruitment process and gain a competitive edge in the market. With our proposed system's implementation, companies can attract and retain top talent, improve employee productivity, and ultimately increase their efficiency.
Justicia social en educación: perspectivas de directores/as de escuelas desaventajadas de Chile
Authors: De la Vega-Rodríguez Luis Felipe , Yáñez-Cifuentes María Teresa 
Published: September 2023

The article presents the results of an investigation that identified and analyzed the perceptions of school leaders on some criteria that should be met by institutions operating under the social justice perspective. A multiple-case study was carried out with eight principals who had taken office recently in disadvantaged schools and had completed their first year in that position. The aim was to know their vision regarding aspects related to justice, optimism, empathy, and democracy —presented by other authors— to describe how an educational center works from the perspective of social justice. The results showed discourses that partially incorporated these criteria and indicated a stronger presence of the distribution component over those of recognition and representation, which belong to the concept of social justice.
Acumulação por espoliação, cidades e (geo)grafias do comum no médio curso do rio Tocantins
Authors: Lima Michel de Melo , Alves dos Santos Lais 
Published: September 2023

Partindo de reflexões críticas sobre a modernização capitalista da Amazônia, e dos processos de espoliação simultaneamente produzidos, o debate empreendido neste texto aborda o tema das ações coletivas e da produção social de territórios de usos comum na região, tendo como referencial empírico as cidades de Tucuruí e Marabá. Objetiva analisar a relação existente entre a acumulação por espoliação e o enfrentamento protagonizado pelas (geo)grafias do comum, em Tucuruí e Marabá, cidades do médio curso do rio Tocantins, no Estado do Pará. Para tal, utilizou-se do seguinte instrumental de pesquisa: a) revisão teórico-conceitual sobre o processo de acumulação por espoliação, a modernização da Amazônia, os comuns e o debate sobre os movimentos socioterritoriais contemporâneos; b) levantamento e análise bibliográfica, de caráter histórico-geográfico, centrada em Tucuruí e Marabá; c) análise documental referente a intervenções infraestruturais (de geração de energia [hidrelétrica], de logística e mobilidade, de turismo etc.) voltados para o médio curso do rio Tocantins; d) visitas de campo, entrevistas e observação sistemática das dinâmicas socioterritoriais existentes nas cidades selecionadas. A partir dos dados coletados e analisados, constatou-se que o processo de modernização regional, assentando em intervenções infraestruturais, engendra contradições, conflitos e espoliações dos territórios de uso comum ligados aos rios e aos recursos florestais. Por outro lado, essa situação também produz resistências, levantes e insurgências protagonizadas por ações coletivas em defesa dos territórios, um conjunto de (geo)grafias de vida e do comum que se manifestam e contrapõem o desenvolvimento do capital no médio curso do rio Tocantins.