bluuebunny/crossref_metadata_2025 huggingface dataset:
Three-dimensional transient heat transfer analysis of micro-plasma arc welding process using volumetric heat source models
Authors: Das Benjamin , Chowdhury Sohini , Nirsanametla Yadaiah , Prakash Chander , Gupta Lovi Raj , Smirnov Vladimir
Published: January 2024

The micro plasma arc welding process is associated with different physical phenomena simultaneously. This results in complexities to comprehend the actual mechanism involved during the process. Therefore, a robust numerical model that can compute the weld pool shape, temperature distribution, and thermal history needs to be addressed. Unlike, other arc welding processes, the micro plasma arc welding process utilizes thin sheets of thickness between 0.5 and 2 mm. However, joining thin sheets using a high-density arc welding process quickens the welding defects such as burn-through, thermal stresses, and welding-induced distortions. The incorporation of a surface heat source model for computational modeling of the high energy density welding process impedes heat transfer analysis. In that respect, researchers have developed numerous volumetric heat source models to examine the welding process holistically. Although, selecting volumetric heat source models for miniature welding is a significant task. The present work emphasis developing a rigorous yet efficient model to evaluate weld pool shape, temperature distribution, and thermal history of plasma arc welded Ti6Al4V sheets. The computational modeling is performed using a commercially available COMSOL Multiphysics 5.4 package with a finite element approach. Two different prominent thermal models, namely, Parabolic Gaussian and Conical power energy distribution models are used. A comparative analysis is carried out to determine the most suitable heat source model for evaluating temperature distribution, peak temperature, and thermal history. The analysis is done by juxtaposing the simulated half-cross-section weld macrographs with the published experimental results from independent literature. The numerical results showed that the proximity of top bead width magnitude was obtained using the Parabolic Gaussian heat source model for low heat input magnitude of 47.52 and high heat input magnitude of 65.47 J·mm−1, respectively. In terms of percentage error, the maximum top bead width percentage error for the Parabolic heat source model is 13.26%. However, the maximum top bead width percentage error for the Conical heat source model is 18.36%. Likewise, the maximum bottom bead width percentage error for the Parabolic heat source model and the Conical heat source model is 12.3 and 25.8%, respectively. Overall, it was observed that the Parabolic heat source model produces the least deviating outcomes when compared with the Conical distribution. It was assessed that the Parabolic Gaussian heat source model can be a viable heat source model for numerically evaluating micro-plasma arc welded Ti6Al4V alloy of thin sheets.
Lesen dualer Untertitel beim Ansehen von Videos – ein nützliches Verfahren für den Fremdsprachenerwerb?
Authors: Burger Günter
Published: January 2024

Duale Untertitel zeigen beim Sichten audiovisueller Medien die gesprochene Sprache der Tonspur gleichzeitig im Original und als Übersetzung an. Da DVD-Player und Fernsehgeräte normalerweise keine Funktion besitzen, mit der sich duale Untertitel zuschalten lassen, wird zuerst beschrieben, wie dies am Computer mit spezieller Software dennoch gelingt. Dann werden 36 empirische Studien referiert, die die Wirkung von dualen Untertiteln erforscht haben. Der Beitrag kommt zu dem Ergebnis, dass sie für den Unterricht nur begrenzt nützlich sind, aber einen großen Wert für das autonome Lernen außerhalb des Unterrichts haben.
An intelligent decision methodology for triangular Pythagorean fuzzy MADM and applications to college English teaching quality evaluation
Authors: Li Liwei
Published: January 2024

The development of contemporary college English teaching methods and practice should respect the subjective will of college students; fully tap their wisdom and potential; constantly innovate college English teaching methods, teaching practice activities, classroom teaching, and teaching evaluation models; create a good teaching atmosphere; and establish the concept of developmental evaluation. Through the innovation of teaching methods, college students’ actual language communication ability is cultivated, the teaching objectives and teaching methods of college English reading are innovated, and interactive, body language, role play, situational teaching, communicative teaching, and other teaching methods are used. The College English teaching quality evaluation is a classical multiple attribute decision making (MADM). In this article, the triangular Pythagorean fuzzy sets (TPFSs) are introduced, and the MADM problem is investigated under TPFSs. Based on the traditional dual generalized weighted Bonferroni mean operator and power average operator, the triangular Pythagorean fuzzy dual generalized power Bonferroni mean (TPFDGPBM) operator is proposed. Accordingly, the TPFDGPBM operator is employed to construct the triangular Pythagorean fuzzy MADM method. Finally, a numerical example for College English teaching quality evaluation is constructed to verify the TPFDGPBM technique.
Examining the performance of along-track multi-mission satellite altimetry – A case study for Sentinel-6
Authors: Heinoja Lenne-Liisa , Delpeche-Ellmann Nicole , Ellmann Artu
Published: January 2024

Satellite altimetry (SA) is one of the most valuable techniques that measure the sea level data at both the near-coast and offshore. There exists, however, multiple challenges and hindrances in determining and using accurate sea level data. The most pertinent is that evaluation of SA performance requires that all data sources (such as tide gauges (TG) and hydrodynamic models (HDMs)) refer to the same vertical datum. Thus, knowledge of the geoid (equipotential surface of the earth) is essential in linking different sources of sea level. Accordingly, this study examines performance of along-track data for three satellite missions (Sentinel-3A, Jason-3, and Sentinel-6A) to obtain realistic sea level variation and to determine the accuracy of the various missions in the complex area of the eastern Baltic Sea. The methodology consisted of utilizing SA, HDM, and TG data and a high-resolution geoid model. Results show that root-mean-square error (RMSE) varied for Jason-3 within a range of 1.68–50.14 cm, Sentinel 3A with a range of 2.8–46.27 cm, and Sentinel 6A with a range of 3.5–43.90 cm. Sentinel 6A was determined to be the most accurate and reliable satellite mission. Results also showed higher RMSE (15.7–46.2 cm) during (i) the seasonal sea ice month (e.g. March 2018); (ii) at locations of several islands (e.g. eastern section of Gulf); and (iii) at locations where rivers discharged into the Gulf (e.g. Nava, Kemi, Luga, and Neva rivers). These features tended to show up as peaks in the final results even though robust data processing for outliers were undertaken. These results suggests that improvements can still be made in the SA retrackers and also in the data-processing techniques utilized.
Evaluation of postpartum shock index in hypertensive diseases of pregnancy: a case-control study from a tertiary reference center
Authors: Durak Melek , Tanaçan Atakan , Kara Özgür , Şahin Dilek
Published: January 2024

Objectives

To compare the postpartum shock index (SI) values between pregnant women with hypertensive disease of pregnancy (HDP) and normotensive controls.

Methods

The present study was conducted in Ankara City Hospital Perinatology Clinic. Postpartum SI was compared between the pregnant women with HDP (n=217) and normotensive controls (n=219). A logistic regression analysis was performed to assess the independent predictors of maximum SI ≥1. Finally, a ROC analysis was performed to calculate optimal cut-off values for postpartum SI’s measured at different periods in the prediction of postpartum Hb (hemoglobin) decrease ≥2 g/dL.

Results

Peripartum SI (p<0.001), 15th min SI (p<0.001), 30th min SI (p<0.001), 2nd h SI (p<0.001), 6th h SI (p) of the HDP group (p<0.001) and max SI (p<0.001) values were found to be significantly lower in the study group. A weak positive and statistically significant correlation was found between the maximum SI and the decrease in Hb ≥2 g/dL (r=0.209; p=0.002). Optimal cutoff values for SI were; 0.7 at peripartum 0.7 at 15 min, 0.73 at 30 min, 0.6 at 2 h, and 0.7 at 6 h, respectively.

Conclusions

Clinically significant blood loss may develop at lower SI values in hypertensive pregnant women.
Introduction: what are alternations and how should we study them?
Authors: Pijpops Dirk , Franco Karlien , Speelman Dirk , Van de Velde Freek
Published: January 2024

The research paradigm of alternation studies is forming an increasingly large share of the empirical foundations of usage-based linguistics. As the paradigm is essentially an amalgamation of research traditions from various subfields of linguistics, including sociolinguistics, psycholinguistics, cognitive linguistics, and construction grammar, it sports various definitions of the concept of “alternation” and various ways of conducting an alternation study, which are not always compatible. The present special issue is therefore intended to bring researchers from various backgrounds in usage-based linguistics together to see how we can deal with these issues. This introduction first presents the various ways of defining an alternation and discusses the differences between them and how these definitions determine the methodological set-up of an alternation study. Next, the contributions to the special issue are each in turn summarized and related to one another.
Die Herstellung von Adressabilität. Medialität und Praxis der Kommunikationsanbahnung am Beispiel der neurologischen Intensivstation
Authors: Beckmann Lukas
Published: January 2024

The concept of the communication address and the associated question of its producibility are regularly assigned a fundamental conceptual significance in the sociological theory discussion. The empirical connections, on the other hand, remain rare and, moreover, in the context of modernity, do not take up the mediality of communication as well as social theoretical considerations sufficiently. Therefore, the question arises how addressability is produced practically and medially. Using the example of addressing practices in a neurological intensive care unit, this question is addressed within the framework of an ethnographic approach. It is shown that media fade addressability in and out by using them as epistemic instruments and substitutes. At the same time, they can mediate between interactional, organizational, and social system requirements. These findings reveal a broader field for further empirical exploration of modern address- and communication orders.
Asymmetrie und Resilienz. Eine gesellschaftstheoretische Einordnung von Eskalation und Strukturbildung im Krieg Russlands gegen die Ukraine
Authors: Worschech Susann
Published: January 2024

Mit der „Rückkehr des zwischenstaatlichen Krieges nach Europa“ durch den Krieg Russlands gegen die gesamte Ukraine stellt sich nicht nur die Frage nach Ursachen und politischen wie gesellschaftlichen Auswirkungen des Krieges in der Ukraine und in den europäischen Gesellschaften. Es manifestiert sich in dieser Beschreibung auch ein Verständnis zwischenstaatlicher Kriege, das stärker von einem Symmetriekonzept zwischenstaatlicher Kriege ausgeht, als dies empirisch in den letzten Dekaden erkennbar war. Im Gegenteil kann der Krieg Russlands gegen die Ukraine in seinen Voraussetzungen, Ressourcen, seinem Verlauf und seinen aktuellen wie künftigen Folgen – inklusive einer Friedensperspektive – als hochgradig asymmetrisch bezeichnet werden. Ausgehend von der These der Asymmetrie als neuem Charakteristikum des zwischenstaatlichen Krieges argumentiere ich in diesem Beitrag, dass gerade durch Asymmetrie und die in diesem Krieg produzierten spezifischen Ambivalenzen Resilienz entsteht, welche in der kriegerischen Interaktion beider staatlicher Akteure – Russland und die Ukraine – eine entscheidende Rolle spielt. Das Resilienzkonzept hilft dabei, die gesellschaftliche Dynamik des Krieges besser zu verstehen.
(Re)cartographier la Galloromania médiévale : enjeux et perspectives quarante ans après l’Atlas de Dees
Authors: Videsott Paul , Robecchi Marco , Schaber Jonathan
Published: January 2024

The article illustrates the data geolocalisation procedure used within the project Linguistic variation in the Middle Ages as a system. Basics of a new scriptural description of the Gallo-Romance language area. It starts with some general reflections on linguistic cartography, and in particular a comparison of the characteristics and editing methods of a linguistic atlas representing modern dialect data and one representing medieval scripta data. Afterwards, we discuss the concrete challenges and perspectives within the project itself, which aims at a new carthographic representation of medieval Galloromania forty years after Anthonij Dees’ famous Atlas des formes et des constructions des chartes françaises du 13e siècle. The focus is placed on the localisation of the basic corpus, which consists in attributing more than 6,000 documents spread over the entire Gallo-Romance domain to a concrete geographical territory, but where the exact location of individual documents often poses problems that can be solved only by considering a number of criteria.
I sondaggi, i metodi e le analisi del progetto GeoDocuM. Alla ricerca delle tendenze locali e sovralocali del latino documentale dell’Italia meridionale
Authors: Giuliani Mariafrancesca , Abete Giovanni , D’Argenio Elisa
Published: January 2024

The GeoDocuM project deals with the lexical variation that characterizes the ancient legal documentation written in Latin of continental southern Italy (with particular reference to the area between Campania and central-northern Puglia in a period ranging from the 8th to the 11th century), by testing a geospatial and statistical representation of the textual data. The paper focuses on the methodological issues addressed to enhance the local dimension, which is central in the setting up of the project.
Diagnósticos de enfermagem em participantes de equoterapia
Authors: Mendes Cardoso Suelen Aparecida , Holanda Prezotto Kelly , Arruda D'Alessandro Giovanna
Published: January 2024

Objetivo: identificar diagnósticos de enfermagem em participantes de equoterapia. Método: pesquisa observacional com abordagem quantitativa, com 15 participantes, de ambos os sexos, com idade de um a 14 anos, frequentadores de equoterapia. Os dados foram coletados com a equipe da equoterapia e o processo de enfermagem juntamente com o exame físico foi realizado em todos os participantes, e posteriormente foi identificado o, diagnóstico de enfermagem com base na classificação internacional. Resultados: verificou-se que 86,7% dos participantes apresentaram crescimento adequado. Conclusão: a presença da enfermagem na equoterapia e a identificação dos diagnósticos de enfermagem, auxilia a equipe a ter uma visão mais ampla da evolução clínica do paciente e do impacto da equoterapia no mesmo, auxiliando dessa maneira na tomada de decisões e intervenções a ser utilizada.
Preditores da felicidade no trabalho e interação familiar em enfermeiros
Authors: Loureiro Sofia Alexandra Ribeiro , Almeida Macedo Loureiro Helena Maria , Lima Trindade Letícia de , Das Neves Borges Elisabete Maria
Published: January 2024

Objetivo: identificar os fatores preditores da Felicidade no trabalho e Interação familiar em Enfermeiros de um contexto hospitalar. Método: estudo quantitativo, descritivo, transversal, correlacional. Aplicado questionário para caraterização sociodemográfica/profissional, a Shorted Happiness at Work Scale e o Survey Work-Home Interaction Nijmegen, a uma amostra de conveniência de 363 Enfermeiros. Resultados: idade, local de trabalho, categoria profissional e, percepção de trabalho estressante foram preditores da Felicidade no trabalho. A prática de atividades de lazer e a percepção de trabalho estressante foram preditores da Interação trabalho-família positiva e negativa e, o sexo feminino foi preditor da Interação família-trabalho positiva. Conclusões: a prevalência de Felicidade no trabalho, os valores moderados de Interação trabalho-família negativa identificados, bem como os fatores que a predizem, devem ser alvo de atenção por parte dos Enfermeiros e organizações, tendo esta última um papel preponderante na promoção de ambientes de trabalho saudáveis e da saúde no local de trabalho.
Surface Writing
Authors: Williams R. John
Published: January 2024

In uncovering the hidden history of Sigmund Freud’s Mystic Writing-Pad, this essay seeks to illuminate not only why so many have assumed that it was “merely a child’s toy” (and how we might read it differently knowing that it was not) but also why Jacques Derrida devoted so much energy to deconstructing Freud’s fascination with it as an analogy for consciousness. We may even discover something—in ways that are perhaps more than mere analogy—about how our more contemporary devices generate modes of extended cognition as well.
Reproduction at the Interface
Authors: Franklin Seb
Published: January 2024

In Mati Diop’s film Atlantics (France/Senegal/Belgium, 2019), images of people holding, using, and disposing of cell phones knit together scenes of attenuated social reproduction. In this essay, I take those images as the basis for a theory of interfaces. In so doing, I connect some of the principal concerns of media theory to the social operations—of labor, of social reproduction, and of racialized, gendered, and sexuated valuation—that collectively enact the expanded reproduction of capital. From the perspective of those operations, media technologies such as cell phones become intelligible as elements in a determinate form of society: not only interfaces in themselves but also elements in an expansive, emergent, and (apparently) self-regulating network of interfaces.
En el umbral del diccionario: neologismos dentro y fuera del Diccionario de la Lengua Española
Authors: Salomón Plata Juan Saúl
Published: January 2024

En este estudio se presta atención, en primer lugar, a los criterios teóricos por los que aboga la investigación más reciente para admitir o sancionar la entrada de un neologismo en los repertorios lexicográficos de la lengua española. En este sentido, el estudio de Bernal, Freixa y Torner (2020) ofrece un estado de la cuestión con respecto a la diccionariabilidad de las nuevas creaciones teniendo en cuenta el factor de la frecuencia, el semántico y el formal, así como una aplicación práctica de gran calado, cuyas aportaciones son analizadas y comentadas en el epígrafe teórico. Tales nociones se completan, en segundo lugar, con la aplicación práctica de los tres criterios a las palabras que están dentro y fuera del Diccionario de la Real Academia Española, es decir, tanto a los neologismos que se han incorporado en el Diccionario de la Lengua Española (DLE) en la actualización de diciembre de 2021 como a las creaciones léxicas que constituyen el Observatorio de Palabras de la institución. Con ello, se pretende reflexionar en la práctica sobre la decisión académica que guía la aceptación o rechazo de voces nuevas en la configuración del instrumento filológico de referencia tomando como base los criterios teóricos mencionados (el de la frecuencia, el formal y el semántico) y, por tanto, sobre la neología más actual y candente en nuestros días.
Nursing student activism 1972–1973 in Chile, relating to a case
Authors: González Greys González , Riveros Edith Rivas , Rivas Catalina Sepulveda , Campillay Maggie Campillay , Araya Pablo Dubo
Published: January 2024

Unveiling the political and union formalization of the Chilean nursing student movement in the socio political space of 1972-1973 contributes to the historical knowledge of nursing. The situations of need for nursing students in 1972 were formalized through the Federation of Nursing Students, which culminated with the military coup of 1970, where its members dissolved the Federation and were persecuted and expelled from their study centres. Despite reinsertion, the marks of this episode stripped them of their union ideals.
MODIFICATION OF VEGETABLE OILS WITH REACTIVE COMPOUNDS FOR THE PRODUCTION OF PRINTING INKS
Authors:   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, SISYUK V.G. , ZEL L.I. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, UGRO N.G. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, OSTAPIUK S.M. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine
Published: January 2024

The modification of existing paints and varnishes based on alkyd resins, as well as the creation of new film formers using functionalised oligomers to improve the properties of materials in use, has been carried out. The aim of the work is to study vegetable oils used in the production of printing inks and to modify them in order to improve their technological properties. The work carried out allows the use of printing inks based on modified vegetable oils, with the expansion of their scope of application in the production of various printed products. The modification of vegetable oils was carried out by interaction with synthesised urethane-containing reactive block copolymers. Modification of mustard oil allows to change its structure, to increase its molecular weight by oligomerisation of the oil with obtaining of branched structure. Modified vegetable oils provide fast drying alkyd coatings, even in air. The properties of modified oils, the rate of film formation depend on the chemical nature of the block copolymer, its reactivity. The main processes of oil film structuring are due to oxidative and thermal polymerisation of double bonds of fatty acid residues. Optimisation of the vegetable oil modification process has been carried out, a formulation for the production of printing inks has been developed and production tests have been carried out with positive results.
FILM-FORMING COMPOSITIONS BASED ON POLYURETHANEUREAS WITH EXTENDED RELEASE OF DACARBAZINE
Authors:   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, PRYMUSHKO S.O. , GALATENKO N.A. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, ROZHNOVA R.A. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, KOZLOVA G.A. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, GLADYR I.I. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine, NECHAEVA L.YU. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine
Published: January 2024

Composite materials with dacarbazine (DK) containing 1 wt. % were obtained on the basis of polyurethane ureas (PUU) containing in the structure as extenders of the macrochain of 2-(2-aminoethoxy)ethan-1-amine, (DA1) 3,6-dioxaoctane-1,8-diamine (DA2) 3-{2-[2-(3-aminopropoxy)ethoxy]ethoxy}propan-1-amine (DA3) with a molar ratio of 4,4’-diaminodiphenylmethane (DADPh) to DA1 and DA3 as 30:70; 50:50; 70:30. The tensile strength of the compositions is within (1.21-1.27) MPa, the relative elongation is (303.9-384)%. Studies of thermophysical properties of synthesized PUU by DSC, TGA methods were conducted. Dacarbazine compositions are single-phase systems with glass transition temperature (Tg) from -33.55°C to -37.06°C. It was established that the introduction of Dacarbazine into the composition of PUU leads to a decrease in Tg and ΔCp during the second warm-up in comparison with the original PUU. Dacarbazine compositions are resistant to temperatures of 270oC, which allows for thermal sterilization before use. The release of Dacarbazine from polymer samples into the solution was studied by the spectrophotometric method. According to the results of the study of the dynamics release of Dacarbazine, it was es tablished that for (PUU DA1)2+DK in 14 days it is 61.74%, (PUU DA2)4+DK - 70.09%, (PUU DA3)2+DK - 56.75% of the total amount of immobilized DK. The resulting composites are perspective materials for medicine as means of local prolonged therapeutic action.
PENGARUH JUMLAH PENDUDUK DAN PENGANGGURAN TERHADAP TINGKAT KEMISKINAN DI SUMATERA BARAT
Authors: Hafiz M , Kurniadi Anggi Putri
Published: January 2024

The goals of this research are to determine how unemployment affects poverty, how population affects poverty, and how both factors together affect the poverty rate in 19 West Sumatra Province districts and cities. The study's methodology in West Sumatra Province employed a quantitative strategy with secondary data. employing a quantitative strategy with panel data regression and E-Views 12 software, utilizing secondary data obtained via BPS. The population has a considerable positive effect on the poverty rate, according to the study's results. Where this effect is seen, H0 is rejected and Ha1 is accepted, with a probability value of 0.000 t-table (5.25>1.98). and H0 is rejected and Ha2 is accepted. The unemployment rate has a negative and negligible impact on the poverty rate, where the probability value is 0.2815>0.05 with the value of t-count < t-table (-1.08 < 1.98). because the population and unemployment variables both significantly affect the poverty rate. In this case, H0 is rejected and Ha3 is accepted when the probability value is 0.000007 from the F-table (13.58>3.10).
Las cuestiones sintácticas en las columnas sobre la lengua: de Valbuena a los «dardos» de Lázaro
Authors: Martínez-Linares María-Antonia
Published: January 2024

Este artículo indaga en el tipo de cuestiones sintácticas que han sido objeto de interés en columnas sobre la lengua publicadas en las últimas décadas del siglo XIX y a lo largo del siglo XX. Se han examinado unas 750 columnas escritas en ese periodo por autores incluidos en el corpus METAPRES y por algunos otros articulistas prominentes de finales del XIX y principios del XX. Se han destacado los temas sintácticos tratados con mayor o menor extensión en las columnas analizadas. El examen ha permitido constatar que estos temas no han suscitado el interés de los columnistas en la misma medida que los relacionados con el léxico y el diccionario. Ha posibilitado asimismo poner de relieve algunas de las cuestiones sintácticas que más atención han recibido en este tipo de textos.
La tópica argumentativa en el columnismo lingüístico español desde sus orígenes
Authors: Marimón-Llorca Carmen
Published: January 2024

Las columnas sobre la lengua se caracterizan por ser discursos en los que se discute acerca de algún problema relacionado con el lenguaje. Son textos argumentativos en los que se combinan la subjetividad y la explicación científica para influir sobre grupos de lectores con los que comparten amplios espacios de acuerdo. El objetivo de este trabajo es analizar los tópicos sobre los que se sostiene el discurso sobre la lengua del columnismo lingüístico desde sus orígenes hasta la actualidad. A partir de la tipología de los lugares de la argumentación de Perelman y Olbrechts-Tyteca (2015) cantidad, cualidad, orden y esencia, se realiza el análisis de un corpus de columnas sobre la lengua con el fin de hallar los correlatos argumentativos de estos lugares en el discurso sobre la lengua. Se mostrará su continuidad a lo largo del tiempo y su relevancia como elementos caracterizadores de la tradición discursiva metalingüística que estas conforman.
Voces en el discurso: polifonía y oralización en las columnas sobre la lengua de la prensa española
Authors: Pano-Alamán Ana
Published: January 2024

En este artículo se presentan los resultados de un análisis pragmalingüístico de las manifestaciones de la polifonía, mediante la cita, y de la oralización en un corpus de columnas sobre la lengua (CSL) publicadas en la prensa española entre 1960 y 2020. El análisis mixto, basado en los planteamientos de la teoría polifónica y la oralización en el discurso periodístico y en estudios previos sobre las ideologías lingüísticas en la prensa, tiene como objetivos identificar los procedimientos de cita y los rasgos oralizadores más frecuentes en el corpus y determinar qué funciones discursivas desempeñan en este tipo de textos. Los resultados muestran que, con pocas diferencias y durante todo el periodo considerado, las CSL privilegian el discurso directo y los enunciados interrogativos. Estas estrategias permiten, en la mayor parte de los casos, reproducir discursos ajenos que se evalúan críticamente y establecer una relación de complicidad con los lectores de la columna.
Stylistyka religijnego malarstwa monumentalnego Lwowa z końca XIX i początku XX wieku
Authors: Biriulow Jurij
Published: January 2024

Artykuł jest próbą analizy przemian stylistycznych w religijnym malarstwie monumentalnym Lwowa okresu 1890–1914. Najlepsze sakralne budowle stolicy Królestwa Galicji i Lodomerii odznaczają się głębokim współdziałaniem sztuk przestrzennych. Malarze lwowscy zademonstrowali zdolność rozwiązania skomplikowanego zagadnienia artystycznego – stworzenia zespołu architektoniczno-malarskiego. Ich dzieła dekoracyjne charakteryzowała organiczna łączność z tektoniką i funkcją budowli. Ozdobienie wnętrz pokaźnych gmachów sakralnych zasobami malarstwa ściennego konkretyzowało ich przeznaczenie. W wielu wypadkach powiązane z architekturą sakralną lwowskie malarstwo monumentalne było zapatrzone we wzory ówczesnego akademizmu. W konkurencji z akademizmem i historyzmem secesja w dziełach Stanisława Dębickiego, Kazimierza Sichulskiego, Mariana Olszewskiego, Modesta Sosenki i innych artystów dość szybko zaczęła pełnić, obok neobizantyjskiej szkoły Mychajły Bojczuka, funkcję awangardy.
Kolekcje medalików i krzyżyków Władysława Bartynowskiego – oryginały i bartynotypy
Authors: Pawłowska Krystyna
Published: January 2024

Artykuł poświęcony jest rzadko podejmowanemu tematowi medalików religijnych. Jego przedmiotem jest kolekcja medalików i krzyżyków Władysława Bartynowskiego oraz bartynotypia czyli metoda sporządzania kopii numizmatów, przede wszystkim monet, lecz także medali i medalików. Władysław Bartynowski zapisał się w historii XIX-wiecznego Krakowa jako znany kolekcjoner i wybitny znawca kilku dziedzin. Był numizmatykiem, zbieraczem rycin, bibliofilem, twórcą faksymile starodruków, konserwatorem książek i numizmatów oraz redaktorem Wiadomości Numizmatyczno-Archeologicznych. Swoje zbiory przekazał przede wszystkim Muzeum Narodowemu w Krakowie. Jedyna kolekcja, która zachowała się w archiwum rodziny to kolekcja 182 medalików religijnych i krzyżyków, pochodzących z głównie z XIX wieku, z różnych krajów Europy a także z Chin. W tym samym domowym archiwum zachowała się inna podobna pamiątka – album 493 bartynotypów innej kolekcji medalików w tym przypadku polskich.
MULTICENTRIC OSTEOSARCOMA AS A RARE TYPE OF OSTEOSARCOMA (CASE REPORT)
Authors: Golovina Yanina , Vyrva Oleg
Published: January 2024

Multicentric osteosarcoma (M-OGS) is classified as a special type of osteosarcoma, which is characterized by multicentric bone lesions without visceral organs involvement in the tumor process. Synchronous type of the lesion is noted when several  foci of osteosarcoma are diagnosed at the same time, whereas metachronous type may develop additional foci 6 months after the primary tumor diagnosis. This type of osteosarcoma is very rare with only a few articles describing this pathology. Objective. Present a clinical case of rare pathology — multicentric osteosarcoma. Materials and methods. Clinical, radiological, pathomorphological data of a patient with multicentric osteosarcoma. Data on the results of treatment of the patient. Results. Multicentric osteosarcoma It accounts for about 1.5 % of all cases reported worldwide. Fuchs et al described a multifactorial etiology of this pathology, considering it a part of hereditary diseases, such as Rothmund-Thomson, Li-Fraumani, Bloom syndromes. Patients with Pagetʼs disease or McCuneAlbright syndrome have also been diagnosed with multicentric M-OGS. Tumor genetic predisposition has been described as one of the etiology factors, where a genetic mutation is detected. While studying the nature of multicentric M-OGS, various scientists have created classifications of this lesion. Taking to account all clinical and radiological data, a differential diagnosis comes to multiple metastatic lesions of carcinoma, chronic recurrent osteomyelitis and hyperphosphatasia. Conclusions.  Multicentric osteosarcoma is a highly malignant and aggressive tumor that has a characteristic clinical presentation in the form of multiple bone lesions without visceral organs involvement. Mandatory patient monitoring after a comprehensive treatment allows to detect a spread of tumor process, as well as verify this rare pathology and choose the best treatment course.
Effect of magnesium deficiency on bone health
Authors: Diedukh Ninel , Grygorieva Nataliia , Musiienko Anna
Published: January 2024

Objective. To assess the impact of magnesium deficiency on bone metabolism based on an analytical analysis of current literature, as well as to systematize data on the impact of magnesium deficiency on the development of osteoporosis, bone regeneration, and to consider it as a risk factor for fracture. Methods. The review is based on the analysis of literature sources from PubMed, Scopus, Web of Science, Cochrane Library, Google, Google Scholar, and RLNS. The search was conducted by keywords: magnesium, deficiency, magnesium and bone tissue, magnesium and osteoporosis, magnesium and fractures, magnesium and bone regeneration. Results. Magnesium is a key element in the metabolic and regulatory processes of the body. Its effects on bone tissue are direct and indirect. The direct magnesium effect on genes involved in osteogenesis is accompanied by proliferation of mesenchymal stem cells and osteoblasts, but magnesium deficiency leads to their reduction and apoptosis. In case of magnesium deficiency, the number and activity of osteoclasts increases. Magnesium regulates bone mineralization in a concentration-dependent manner. Magnesium deficiency increases bone resorption and affects osteopenia and osteoporosis, which can occur indirectly through decreased vitamin D levels, increased biosynthesis of parathyroid hormone, increased oxidative stress and biosynthesis of proinflammatory cytokines. However, data on bone mineral density at different skeletal sites in magnesium deficiency are ambiguous. Magnesium deficiency is considered a risk factor for fracture. It is of great importance for bone regeneration, affecting in various ways: it stimulates the proliferation and differentiation of mesenchymal stem cells and osteoblasts, periosteum cells, increases the movement of osteoblasts to the area of traumatic bone injury, and activates signaling pathways. At the early stage of regeneration magnesium has a positive effect on macrophages, its specificity of action is inhibition of transformation of M2 macrophages into M1 at the tissue-specific stage of regeneration. One of the mechanisms stimulating regeneration may be the effect of magnesium on axons, release and increase of calcitonin-related polypeptide α. Conclusions. Since hypomagnesemia is a potentially modifiable factor, this opens up prospects for maintaining bone health and requires further research in this area.
THE HISTORY OF THE FORMATION AND ACTIVITY OF THE KHARKOV REGIONAL BRANCH OF THE ALL-UKRAINIAN PUBLIC ORGANIZATION «UKRAINIAN ASSOCIATION OF ORTHOPEDIC SURGEONS»
Authors: Filipenko Volodymyr , Zolotarova Svitlana , Shevchenko Olena
Published: January 2024

The article is devoted to the Kharkiv regional branch of the All-Ukrainian public organization "Ukrainian Association of Orthopedic Surgeons and Traumatologists".
EFFECT OF CHANGES IN THE LENGTH OF THE COMPONENTS OF THE MUSCULOTENDINOUS ELEMENT OF THE ELBOW FLEXOR MUSCLES ON THE ISOMETRIC FORCE AND JOINT TORQUE
Authors: Tyazhelov Olexiy , Karpinska Olena , Rykun Mykola , Branitskyi Oleksandr
Published: January 2024

Immobilization of the joint leads to the formation of immobilization contracture, which is accompanied by a decrease in the elasticity of tendons and muscles, i.e. loss of full contraction and stretching. The torque in human joints is one of the key indicators in assessing rehabilitation. Objective. To study the effect of changes in the strength, length of muscles and tendons of the elbow joint on the torque in flexion. Methods. The basic OpenSim model arm26 was used for modeling. To determine the change in the length of the components of the muscle-tendon element (MTE), their length was determined at a 90° angle of elbow flexion. The decrease in muscle strength was considered a loss per day for elbow flexors — 1.2 %, extensors — 1.1 %. The decrease in strength was calculated for a period of immobilization of 45 days. Three models were created: Normal — a model without changes in muscle parameters; Contracture — a change in the length of muscles and tendons; Contracture + muscle (CM) — an additional decrease in muscle strength. Results. The obtained data of torques when changing the length of the MTE components showed their increase in conditions of unchanged isometric muscle strength. But this option is not possible after immobilization of the limb. Therefore, it is closer to the real model of СM, in which the torque is significantly reduced by the amount of decrease in muscle strength. These models show a tendency that the change in the components of the MTE due to immobilization increases the joint torque and, when trying to apply excessive force during joint development, can lead to traumatic consequences. During immobilization, the flexor muscles shorten, which prevents the patient from fully extending the elbow joint. Conclusions. This work on predicting the elbow joint torque generated by the muscles can be useful in studying specific clinical situations with elbow joint contractures, but cannot be fully transferred to practice due to the significant conventionality of the model parameters. However, the modeling method can show trends in changes in muscle function parameters when their geometry changes.
DETERMINATION OF THE RISK OF OBTAINING UNSATISFACTORY RESULTS OF SURGICAL TREATMENT OF PATIENTS WITH STATIC DEFORMITIES OF THE FOREFOOT WHEN USING VARIOUS SURGICAL APPROACHES
Authors: Prozorovskiy Dmytro
Published: January 2024

The main method of treatment of static deformations of the forefoot (SDPVS) is surgical. The most static deformities of the foot in its front part most often include valgus deformity of the first toe — Hallux valgus (HV), hammer-like deformities of 2–4 toes, and Taylor's deformity. Objective. To assess the effectiveness of surgical treatment of SDPVS and to determine the risk of obtaining an unsatisfactory result with different surgical approaches. Methods. The treatment of 565 patients (1009 feet) was analyzed, the main group — 729 feet, control 280 feet. The groups of patients differed in the methods of surgical treatment of deformities of the forefoot. The choice of surgical intervention in the main group was carried out according to the algorithmized system of surgical treatment of patients with SDPVS. Results. The results of treatment of patients with static deformities of the front part of the foot in the main group were significantly (p < 0.001) better than the results in the control group of patients. In the main group, good results accounted for 55.0 % of cases, satisfied — 39.2 %, unsatisfactory — 5.8 %, compared to the control group — 26.1 %, 43.2 and 30.7 %, respectively. The reduction of the relative risk of obtaining an unsatisfied result (RRR) in the main group when using the proposed algorithmized system of treatment of SDPVS is 68 %. In the treatment of combined VDPPS with deformities of 2–5 toes, the risk of an unsatisfactory result is higher compared to isolated VDPPS in both groups. The risk of an unsatisfactory treatment result in patients with combined HV deformity and deformities of 2–5 toes in the control group is 15.9 % higher (RR = 0.159 ± 0.174) than in the main group. The use of the proposed approach to the selection of surgical treatment tactics based on the developed algorithmized system of surgical treatment of SDPVS can reduce the relative risk of obtaining unsatisfactory treatment results by 84 % (RRR = 0.841).
RECOVERY OF STABILIZING MUSCLES THAT PROVIDE A VERTICAL POSITION OF THE TRUNK IN PATIENTS WITH POST-TRAUMATIC DEFORMITIES OF THE LONG BONES OF THE LOWER LIMBS IN THE DISTANT PERIOD
Authors: Staude Volodymyr , Romanenko Konstantyn , Staude Anna
Published: January 2024

Rehabilitation treatment in the case of posttraumatic deformities of long bones of lower extremities (PDLBLE) in the distant period after trauma is aimed at the restoration of support ability of lower extremity while walking and standing. Objective. To work out the set of the exercises targeted on the restoration of muscle-stabilizer function in patients with (PDLBLE) Methods. Research group — 40 patients who received closed injuries of the long bones of the lower limbs, initial trauma occured 6–12 months ago. Among them were 21 women. (52.5 % of persons; age 27–73 years) and 19 men (47.5 % of people, age 29–77 years). The comparison group included 40 healthy volunteers, among which there were 12 women (30 % of persons; age 24–50 years) and 28 men (70 % of people, age 31–49 years). The assessment was carried out before and after rehabilitation for 2 weeks. Parameters evaluated: pain scores on VAS, the results of restoring the support ability using the scale of Tyazhelov O. A. Results. The results of observations are given, where in addition to descriptive statistics (minimum, maximum, average meanings), parameters of support ability and VAS, in patients and volunteers before and after treatment, cumulative group indicators (CG) were calculated for each group at the beginning (CG0) and 2 weeks after rehabilitation (CG1); the «rehabilitation» coefficient as a ratio of group indicators before and after treatment was calculated as well. Cumulative group indicator after rehabilitation (CG1) increased to 2 995 points, which indicates an increase in support ability. Cumulative group VAS score after rehabilitation (CG1) decreased to 116 points from 200 points before rehabilitation — reduction of pain in patients. After rehabilitation, volunteers showed a slight increase in the cumulatory group indicator (CG1) to 3 917 points. Conclusions. The system of rehabilitation of patients with PDLBLE in the remote period after injuries proved its effectiveness in restoring muscle-stabilizers vertical position of the trunk, pelvis, lower limbs and pain reduction.
Biotechnological aspects of the working-out and manufacturing of living bone equivalent
Authors: Zubov Dmytro , Poliachenko Iurii , Kostrub Oleksandr , Blonskyi Roman , Magomedov Oleksandr , Dolgopolov Oleksii , Zasadnyuk Ivan
Published: January 2024

Objective. To handle biotechnological aspects in manufacturing processes of three-dimensional living bone equivalent for restoration of critical sized bone defects for innovative treatment of combat-related casualties. Methods. To fabricate living bone equivalent we used devitalized xenogeneic bone scaffolds (DBM chips) and autologous fibrin hydrogel seeded with autologous cultured bone marrow-derived multipotent mesenchymal stem/stromal cells (BM-MSCs). Quality/identity control of cell cultures was assured by donor and cell culture infection screening (IFA, PCR), flow cytometry (cell phenotype), karyotyping (GTG banding), functional assays (CFU assay, multilineage differentiation assay). Results. The BM-MSC cultures had a normal karyotype and appropriate phenotype, multilinear differentiation potential and functional properties, appropriate CFU frequency and hadn’t any signs of cell senescence. The FDA/PI combined staining showed the demineralized bone chips’ regular seeding with viable cells. Conclusions. An actual regenerative medicine approach to organ-saving transplantation of the three-dimensional living bone equivalent for combat-related casualties requires further preclinical and clinical approbation for thorough studies on the bone integrity restoration, forming new bone tissue in a site of bone defect, and duration of rehabilitation period compared to the gold standard of the conventional bone defect cure.
USING 3D PRINTING FOR OPEN REDUCTION OF CHRONIC POSTERIOR SHOULDER DISLOCATION (CASE FROM PRACTICE)
Authors: Golovakha Maxim , Bondarenko Stanislav
Published: January 2024

Objective. An example of the treatment of a patient with chronic posterior dislocation of the shoulder, previously operated on by the Latarge technique due to recurrence of anterior instability, is given. Methods. The patient presented with an old fixed posterior dislocation of the left shoulder joint, large bone defect of the front part of the head (reverse Hill-Sachs). The patient has already undergone 2 operations on the left shoulder due to chronic anterior dislocation of the humeral head: 2018 — arthroscopy and capsuloplasty according to Bankart; 2020 — arthrotomy with Latarje transposition (due to recurrence of anterior instability). The peculiarity of this case is a bone block with screws located on the front surface of the glenoid made a massive defect front part of the humeral head. Planning performed on the basis of a CT scan of the shoulder joint in the FreeformPlus program. Assessment of functioning performed on the QuickDASH and Constant scales. The results. To improve the performance of intraoperative osteoplasty of the defect, a plastic model of the humeral head was printed for simulating bone graft and osteosynthesis. According to the QuickDASH scale before the operation, the patient had 45 points, that is, a significant decrease in the function of the upper limb — constant discomfort, pain. After surgery for 2 days — 35 points, 6 weeks — 12, and 3 months. — 12 points, that is, the patientʼs quality of life has improved significantly. According to the Constant scale before the operation, there were 16 points, of which: pain — 6, household activity — 2, range of motion — 8. After surgery on the 2nd day, a total of 33 points: pain — 10, household activity — 7, range of motion (passive) — 16, after 6 weeks — 80 points, this result remained after 3 months. Conclusion. The use of three-dimensional planning and an individual tool greatly facilitated the main stages ofsurgical intervention in the case of chronic posterior dislocation of the humeral head and made it possible to quickly and conveniently prepare a bone graft and install it in the defect. The printed navigation made it possible to perform a stabilizing osteosynthesis, ensure high patient satisfaction and a good functional result.