bluuebunny/crossref_metadata_2025 huggingface dataset:
Anterior lingual mandibular bone cavity: a case report
Authors: Pintado-Palomino Karen , Tirapelli Camila , Almeida Luciana Yamamoto , Santos Jessica Luana dos , Teixeira Lucas Ribeiro , Ferraz Emanuela Prado , Xavier Samuel Porfirio , León Jorge Esquiche
Published: December 2021

Stafne’s bone cavity (SBC) is an asymptomatic lingual bone cavity situated near the angle of the mandible. The anterior variant of SBC, which shows a radiolucent unilateral ovoid lingual bone concavity in the canine-premolar mandibular region, is uncommon. A 73-year-old man was referred for assessment of loss of mandibular bone. Panoramic radiographs and computerized tomography scans showed a well-defined lingual bony defect in the anterior mandible. Analysis of imaginological documentation, made 14 years ago, revealed a progressive increase in mesiodistal diameter and intraosseous bony defect. The soft tissue obtained within the bony defect, microscopically revealed fibrous stroma containing blood vessels of varied caliber. The current anterior lingual mandibular bone defect case is probably caused by the salivary gland entrapped or pressure resorption, which can explain the SBC pathogenesis.KEYWORDSBone defect; Mandible; Cone beam computed tomography; Diagnosis; Case report.
Diagnostics of non-carious lesions of dental hard tissues with the methods of optical spectroscopy and radiography
Authors: Sarycheva Iraida , Yanushevich Oleg , Minakov Dmitriy
Published: December 2021

Objective: This work aims to use new spectroscopic and radiographic methods to study the dental hard tissue erosion and abfraction, as these lesions are actually quite difficult to be diagnosed in clinical practice. Material and Methods: This in vivo study was conducted on 60 patients with early erosion and 60 patients with abfraction at the cervical area by means of laser-induced fluorescence (LIF) and multilayer spiral computed tomography (MSCT). Results: In comparative dental hard tissues studies LIF spectra from intact and affected areas, it was noted multidirectional fluorescence intensity dependence between areas affected by abfraction and intact areas. MSCT technique allowed assessing the degree of damaged areas, especially at deeper stages. Conclusion: Although LIF and MSCT methods presented limitations, it was shown their effectiveness in the diagnosis of abfraction and erosion by detecting changes in the morphological structure as well as in the chemical and mineral composition of affected dental hard tissues. So LIF and MSCT methods can be successfully used in order to develop new medical devices which will provide most accurate clinical diagnose of different stages of dental erosion and abfraction.KEYWORDSFluorescence spectroscopy; Spiral computed tomography; Tooth demineralization; Tooth erosion.
The influence of ground slab permeability on wall moisture in a historic building
Authors: Briggs Kevin , Ball Richard , McCaig Iain
Published: December 2021

When impermeable ground bearing slabs are installed in old buildings without a damp-proof course, it is a common belief of practitioners within the conservation industry that ground moisture will be ‘driven’ up adjacent walls by capillary action. However, there is limited evidence to test this hypothesis. The accumulation of moisture in walls can promote the decay of the wall materials, decrease the thermal performance of the building envelope and adversely affect the comfort and health of occupants.

An experiment was used to determine if the installation of a vapour-proof barrier above a stone flag floor in a historic building would increase moisture content levels in an adjacent stone rubble wall. This was achieved by undertaking measurements of wall, soil and atmospheric moisture content over a three-year period. Measurements taken using timber dowels showed that the moisture content within the wall did not vary in response to wall evaporation rates and did not increase following the installation of a vapour-proof barrier above the floor. This indicates that the moisture levels in the rubble wall were not driven by capillary rise.
Fluctuating Asymmetry Increases with Heat Stress Disruptions on Bali Cattle (Bos javanicus) at Different Altitude
Authors: Suhendro Ikhsan , Jakaria Jakaria , Priyanto Rudy , Manalu Wasmen , Noor Ronny Rachman
Published: December 2021

Bali cattle (Bos javanicus) are common species distributed throughout Indonesia to survive in tropical hot, and humid climates. Fluctuating asymmetry (FA) is a random deviation from perfect bilateral symmetry. FA is often used to measure developmental stability in individuals and can be used as a marker for the impact of environmental and genetic stress. This study aims to investigate the pattern of developmental instability in Bali cattle as caused by environmental stress at various altitudes using the FA index. FA indexes in this study were used to compare asymmetrical physical traits of Bali cattle in Sembalun high altitude and Serading low altitude. Sixty-five Bali cattle were used in this study reared at different altitudes, namely Serading, Sumbawa Island (50 m above sea level), and Sembalun, Lombok Island (1,186 m above sea level). The physical traits of Bali cattle measured were horn circumference (horn), a distance of hip to spine bone (pelvic), metatarsal circumference (metatarsal), and metacarpal circumference (metacarpal). The FA1 and FA5 indexes showed significant metacarpal differences between Bali cattle reared at Sembalun and Serading population (P<0.05). FA11 multiple trait index as a composite of all traits revealed a significant difference as well. (P<001). It can be concluded that various heat stress by altitude impacts the asymmetry of Bali cattle.
Interaction Effect of Vitamin E-selenium Supplementation and Metabolic Energy on Reproductive Performance of Joper Breeders
Authors: Haryuni Nining , Hartutik Hartutik , Widodo Eko , Wahjuningsih Sri
Published: December 2021

The side effect of fatty acid oxidation during lippoprotein synthesis is the release of oxygen in the tissue called reactive oxygen species (ROS). Metabolic stress in Joper brooders due to an imbalance between ROS and antioxidants causes a decrease in hatching egg production and quality. Therefore, research is needed to improve the reproductive performance of Joper broodstock by combining vitamin E-selenium supplementation and metabolic energy. This study used 200 hatched eggs resulting from a cross between 60 weeks old Sentul males and 35 weeks old ISA BROWN laying hens that had been treated. This study used a Factorial Completely Randomized Design (CRD) (2 x 4). The first factor is the energy level (2700 and 2800 kcal/kg) and the second factor is the dose of vitamin E-selenium supplementation (0, 25, 50, 75 and 100 ppm). Selenium dosage is 1ppm/mg vitamin E. The interaction between vitamin E-selenium supplementation and energy had a very significant effect (P<0.01) in increasing DOC weight. The single factor energy level and vitamin E-selenium supplementation significantly (p<0.05) in reducing embryo mortality and increasing hatchability, while fertility and eggshell quality were not affected by the two treatment factors. The conclusion of this study is the interaction between vitamin E-selenium supplementation and energy levels can increase the weight of Joper's DOC, while the single factor of vitamin E-selenium supplementation and energy levels can reduce embryo mortality and increase hatchability. The best interaction with 100 ppm vitamin E-selenium supplementation and energy 2800 kcal/kg.
Museen des Imaginären
Authors: Quednau Anna
Published: December 2021

Wenn wir ein Museum betreten, erwarten wir, dass die präsentierten Exponate und Informationen »wahr«, »echt«, »auratisch« oder zumindest »authentisch« sind. Was aber passiert, wenn diese Prinzipien der Authentizität unterlaufen werden und die Fiktion Einzug ins Museum erhält? Anna Quednau untersucht Museen an der Schnittstelle zur Literatur und literarische Texte, die Strategien des Ausstellens und Zeigens inkorporieren. Als innovative Hybridformen von Literatur und Ausstellung sind diese »Museen des Imaginären« Teil einer alternativen Museumslandschaft und ermöglichen metareflexive Zugänge zum Ausstellen, Zeigen und auch zum Erzählen.
A clinical case of bovine anemia due to Theileria orientalis group in a non-grazed dairy cow in the upper part of South Korea
Authors: Espiritu Hector M. , Lee Hee-Woon , Lee Sang-Suk , Cho Yong-Il
Published: December 2021

This study reports the detection and genotyping of the first clinical case of bovine anemia due to Theileria orientalis group (BATOG) in non-grazed dairy cow in upper Korea. Blood and serum tests revealed anemia and hyperbilirubinemia from animal showing clinical symptoms, and later confirmed as piroplasmosis-positive. Follow-up surveillance on the herd revealed 2 asymptomatic cows with anemia. The three animals were confirmed theileriosis-positive and genotyping revealed the clinical and one of the asymptomatic cases have Chitose, while the other has Ikeda genotype. Clinical BATOG cases were rarely reported worldwide, and asymptomatic animals left untreated could serve as parasite reservoir.
A clear cell hepatocellular carcinoma in an obese dog with hyperlipidemia: a case report
Authors: Jung Jae-Ha , Lee MaRo , Yang Yeseul , Seo Dansong , Hwang Sung-Hyun , Kim Wan Hee , Kim Yongbaek
Published: December 2021

An 11-year-old obese dog was referred for a liver mass. Cytologic examination revealed vacuolated hepatocytes with mild pleomorphism. A partial liver lobectomy was performed. On histopathologic examination, the mass was diagnosed as hepatocellular carcinoma composed of hepatocytes with clear vacuoles. These findings were consistent with clear cell hepatocellular carcinoma (CCHCC). The CCHCC is a rare subtype of hepatocellular carcinoma in dogs, and clinical features are poorly defined. This is the first report on the cytological, histological and clinical aspects of CCHCC, suggesting that obesity and hyperlipidemia are potential risk factors for CCHCC in dogs.
¡Aé–eá!
Authors: Liut Martín
Published: December 2021

El presente artículo es un estudio de caso del concierto previo a la final de la Copa Sudamericana de Fútbol 2019, disputada el 9 de noviembre en Asunción del Para­guay. El partido fue jugado por Independiente del Valle (Ecuador) y Colón de Santa Fe (Argen­tina). En el espectáculo que lo antecedió participaron Luis Fonsi y dos grupos representan­tes de cada club. En el caso de Colón fueron invitados Los Palmeras, reconocidos hinchas del club y referentes de la cumbia santafe­ina. El conjunto tocó extractos de su hit Bombón asesino y la canción partidaria Soy Sabalero. Como el estadio estaba colmado por 40 mil hinchas de Colón la breve presentación de Los Palmeras alcanzó una intensidad emocional inusitada. Fútbol, música y televisión con­forman un tipo de evento capaz de condensar múltiples capas de representaciones que pro­ponemos desglosar basándonos en la teoría de la mediación (Hennion, 2000).
Spiritual-Based Entrepreneurship Education for Early Childhood: Lesson From Indonesia
Authors: Rohmah Lailatu , Rahayu Dika Putri , Latif Muhammad Abdul
Published: December 2021

Entrepreneurship education in early childhood has been applied to several kindergartens in Indonesia. However, some children still think that these activities are limited to playing games and have not lived up to the meaning of entrepreneurial values. This study aims to describe spiritual-based entrepreneurship education in early childhood. This research method is a qualitative case study. The research subjects were early childhood children at the Khalifah Kindergarten in Yogyakarta, aged 4-6 years. Collecting data in this study by in-depth interviews, participant observation, and documentation. Data analysis used the Miles and Huberman model with interactive analysis through data reduction, presentation, and conclusions. The results showed that spiritual-based entrepreneurship education in early childhood is an activity that can instill entrepreneurial values, increase the development of children’s religious and moral values, and form pious, honest, and challenging Muslim entrepreneurs. Spiritual activities that support entrepreneurship education at Khalifah Kindergarten Yogyakarta are alms after-market day activities, dhuha prayer, sunnah fasting, talking about the example of the prophet Muhammad as an honest entrepreneur. Entrepreneurship activities are in the form of playing activities in the classroom and outside the classroom, internal and external market days, outing classes to entrepreneurial places, and mosques. This research contributes to the understanding of entrepreneurship education in early childhood that combines entrepreneurship education with Tauhid education to instill entrepreneurial values and foster the spiritual development of early childhood to form spiritual entrepreneurs who are pious individuals and pious socially.
Human Resources Approach for Optimization of Knowledge Management Implementation: A Case Study at Binus University
Authors: Jannana Nora Saiva , Sulistya Heru , Qowim Muhammad , Murfi Ali
Published: December 2021

Professional human resources view knowledge management as a guarantor of knowledge owned, acquired, and developed together with other people in the organization so that personal knowledge can become organizational knowledge that can contribute to organizational performance. This study aims to analyze the optimization of the implementation of knowledge management at Bina Nusantara University to approach human resources. This approach is carried out to gain commitment and at the same time increase the competence of human resources in using knowledge management. This study uses a qualitative research method with the type of case study. The research results at Bina Nusantara University show that the resource approach focuses on empowering stakeholders, managing perceptions, developing individual competencies and commitments, and appreciating all achievements. This human resource approach is grouped into students, alumni, and parents. Second, industry, business people, and the community. Third, faculty members, and fourth, staff. This research contributes to a deep understanding of the human resource approach for optimizing knowledge management in higher education.
Propozycja rozwiązania problemu trafu moralnego w kontekście zasady kontroli
Authors: STRZYŻYŃSKI PRZEMYSŁAW
Published: December 2021

Artykuł prezentuje propozycję rozwiązania problemu trafu moralnego, w kontekście zasady kontroli. Zasada ta mówi, że warunkiem przypisania odpowiedzialności, winy/zasługi moralnej jest posiadanie kontroli nad działaniem przez sprawcę. Traf moralny powoduje zdaniem jego zwolenników, że ocenie moralnej podlega działanie podmiotu, które było zakłócone przez przypadek, czy czynnik będący poza kontrolą podmiotu. W artykule próbuje się wykazać, że nie można mówić o całkowitym braku kontroli w działaniach,  na które wpływa przypadek. Stąd nie można wysuwać tak dalekich konsekwencji oddziaływania trafu na moralność jak negacja sensowności przypisywania odpowiedzialności moralnej i winy/zasługi w ogóle.  W to miejsce proponuje się w artykule oddzielnie przypisywania odpowiedzialności moralnej od winy/zasługi, w zależności od intencji podmiotu działającego.
Wirkung phonetischer Parameter des Deutschen auf nichtdeutsche Muttersprachler*innen
Authors: Skoczek Robert
Published: December 2021

This paper tries to answer the question which phonetic parameters are particularly responsible for the sound of German. In particular, the accent-rhythmic structures are discussed. In doing so, we reflect on which factors also shape attitudes and perception of German.
Analiza korelacji pomiędzy nasileniem cech osobowości a strategiami uczenia się leksyki na przykładzie polskich uczących się języka niemieckiego na trzecim etapie edukacyjnym
Authors: Milewski Piotr , Jaroszewska Anna , Posiadała Katarzyna
Published: December 2021

Developing learners' lexical subsystem is one of the most important tasks of foreign language didactics. The observable turn towards vocabulary (,,Wortschatzwende’’) has contributed to an in-depth reflection on learners' lexical competence, including their strategic competence. The aim of this article is to present results of a correlational research concerning the influence of personality variables (understood according to the Five-Factor Model) on the range and frequency of strategies used by Polish high-school students to learn German vocabulary. The research project described in this article was conducted in April 2021. The polish adaptation of the NEO Five-Factor Inventory was applied to examine the learners’ personality traits. The Polish version of Schmitt's Vocabulary Learning Strategies Questionnaire (VLSQ) was used to investigate students’ preferred strategies for learning German vocabulary. Based on the conclusions from the research, an attempt was made to formulate practical guidelines for foreign language teachers concerning the possibilities of developing learners' lexical competence. The report is complemented by a list of open research questions and problems in this field.
What about Plurality? Aristotle’s Discussion of Zeno’s Paradoxes
Authors: Sattler Barbara M.
Published: December 2021

While Aristotle provides the crucial testimonies for the paradoxes of motion, topos, and the falling millet seed, surprisingly he shows almost no interest in the paradoxes of plurality. For Plato, by contrast, the plurality paradoxes seem to be the central paradoxes of Zeno and Simplicius is our primary source for those. This paper investigates why the plurality paradoxes are not examined by Aristotle and argues that a close look at the context in which Aristotle discusses Zeno holds the answer to this question.
The Seizure of the Throne by Demetrius I Soter (1 Macc 7:1-4). Theological Interpretation of a Historical Event
Authors: Nawrot Janusz
Published: December 2021

The presented biblical material (1 Macc 7:1-4) is one of those texts that describe an event happening far away from the scope of influence exerted by the Maccabean insurgents, yet one which is closely connected with the history of the chosen people. As such, it substantially influences the successive events in the political-religious situation of the Jews. What is particularly worthy of analysis is the historical accuracy of the inspired author in presenting facts as well as the theological conception to which primary importance is given in the book. This way the history of peoples, kingdoms and societies is shown as part of God’s magnificent plans which is implemented by all participants of ongoing scenes. Such a presentation concerns both the main and supporting protagonists. The short passage of 1 Macc 7:1-4 reveals how the hagiographer, who knows the theological conception, consciously accentuates certain parts, chooses appropriate syntax and vocabularyto show God’s action in the presented characters and events. God stands behind the curtain of human actions, yet it is Him who decides about their course.
Teologiczna ikona św. Józefa w ujęciu Jana Pawła II
Authors: Kochaniewicz Bogusław
Published: December 2021

Celem niniejszego opracowania jest ukazanie sposobu interpretacji postaci świętego patriarchy w adhortacji apostolskiej Jana Pawła II Redemptoris custos. Dokonana analiza pozwoliła stwierdzić, że teologiczny obraz św. Józefa zawarty w adhortacji jest integralnie powiązany z nauczaniem Soboru Watykańskiego II. Postać świętego patriarchy została ukazana w dwóch odsłonach: w tajemnicy Chrystusa i Kościoła. Z jednej strony Józef został przedstawiony jako ojciec, oblubieniec, cieśla oraz człowiek kontemplujący Zbawiciela. Z drugiej ukazano jego rolę w tajemnicy Kościoła jako opiekuna, stróża i orędownika oraz wzór do naśladowania. Godnym podkreślenia jest perspektywa historiozbawcza, dominująca w całym dokumencie, która pozwoliła zaakcentować aktywną współpracę Józefa w wypełnianiu woli Bożej. Soborowe wezwanie powrotu do źródeł znalazło odzwierciedlenie w dokumencie dzięki licznym odniesieniom do: Pisma Świętego, orzeczeń Urzędu Nauczycielskiego Kościoła, wypowiedzi Ojców i Doktorów Kościoła. Papież sięgnął także po teksty liturgiczne. Oparcie się na takich źródłach sprawiło, że przedstawiony w adhortacji obraz św. Józefa jest pozbawiony przesady i fałszywej egzaltacji.
Insight into Market Supply and Demand of Private Forests in Croatia
Authors: Beljan Karlo , Bašić Ana , Bakarić Matija , Dvořák Jiří
Published: December 2021

Due to their modest 23% share, private forests in Croatia are a resource that is perceived as less important than state-owned forests. One of the basic characteristics of private forests is fragmentation, which is also the biggest obstacle to a successful and, economically speaking, sustainable management of private forests. The cases in which a private forest with its area and integrity can generate a sustainable economic income to its owner are not common. However, from an economic point of view, private forests still have one advantage. Unlike state-owned forests, private forests can be the subject of investment and change hands. Based on this, this paper investigates the supply of private forests on the free market. For private forests that were publicly put for sale in the period from 2010 to 2020, their spatial-temporal distribution and supply dynamics and trends (price and quantity) were analyzed. The data were collected from the leading real estate advertising platform in Croatia (Njuškalo.hr), and a total of 866 advertisements were analyzed, relating exclusively to the sale of raw wood material along with the accompanying forest land. On the other hand, in order to assess the demand, data were collected on the number of potential buyers who viewed the advertisements (period 2020-2021). In the observed ten-year period, a total of 1,890.63 ha of private forests with a total asking value of €32.14 million were offered on the market. The share of advertisements advertised through real estate agencies is 42.1%. The average total annual supply is 170 ha and has a growing trend (in the advertisements in the coastal part of Croatia, the average area is 1.3 ha, while the average area in the continental part is 3 ha). The prices are not constant but rising. According to compound interest, the price increase in the coastal area is 1.57% and 7.49% in the continental area. From the relationship between supply and demand or, more precisely, the relationship between price and the quantity, it was concluded that the market is not well developed and that the price is not affected by the supply/demand quantity of private forests. Furthermore, it was concluded that this market is developing in the direction of a typical real estate market in Croatia due to the fact that forest management and wood processing characteristics of forests do not define the price, but that the price is largely determined by a market with greater financial importance (the market in real estate near the Adriatic coast).
Monte Carlo Method–Based Tool Life Prediction during the End Milling of Ti-6Al-4V Alloy for Smart Manufacturing
Authors: Tiwari K. , Arunachalam N.
Published: December 2021

Tool wear prediction during machining is of significant interest for the development of intelligent functionalities in manufacturing industry. A data-driven Bayesian Monte Carlo–based probabilistic approach is used for predicting the wear of TiAlN-coated carbide inserts during the end milling of Ti-6Al-4V alloy. A series of slot milling passes at varying combinations of speed, feed, and depth of cut were conducted, and wear was measured after each pass. Each insert was used for successive passes at a particular cutting condition until the flank wear crosses the failure threshold of 0.3 mm of average flank wear. The wear estimation from the model is good at tracking wear growth for the unknown data sets, which can provide a timely tool change command before the tool failure. This model thus leads to the formulation of an adaptive control strategy for timely replacement of cutting tools for optimal machining.
Saturating Nonlinearities of Contrast Response in Human Visual Cortex
Authors: Vinke Louis N. , Bloem Ilona M. , Ling Sam
Published: December 2021

Response nonlinearities are ubiquitous throughout the brain, especially within sensory cortices where changes in stimulus intensity typically produce compressed responses. Although this relationship is well established in electrophysiological measurements, it remains controversial whether the same nonlinearities hold for population-based measurements obtained with human fMRI. We propose that these purported disparities are not contingent on measurement type and are instead largely dependent on the visual system state at the time of interrogation. We show that deploying a contrast adaptation paradigm permits reliable measurements of saturating sigmoidal contrast response functions (10 participants, 7 female). When not controlling the adaptation state, our results coincide with previous fMRI studies, yielding nonsaturating, largely linear contrast responses. These findings highlight the important role of adaptation in manifesting measurable nonlinear responses within human visual cortex, reconciling discrepancies reported in vision neuroscience, re-establishing the qualitative relationship between stimulus intensity and response across different neural measures and the concerted study of cortical gain control.

SIGNIFICANCE STATEMENTNonlinear stimulus–response relationships govern many essential brain functions, ranging from the sensory to cognitive level. Certain core response properties previously shown to be nonlinear with nonhuman electrophysiology recordings have yet to be reliably measured with human neuroimaging, prompting uncertainty and reconsideration. The results of this study stand to reconcile these incongruencies in the vision neurosciences, demonstrating the profound impact adaptation can have on brain activation throughout the early visual cortex. Moving forward, these findings facilitate the study of modulatory influences on sensory processing (i.e., arousal and attention) and help establish a closer link between neural recordings in animals and hemodynamic measurements from human fMRI, resuming a concerted effort to understand operations in the mammalian cortex.
Jotería Listening
Authors: Alvarez Eddy Francisco
Published: December 2021

This essay is a mapping of Latinx queer listening practices and spaces, such as bars and restaurants, as forms of resistance to gentrification in the Silver Lake neighborhood of Los Angeles. Using a framework called “joteria listening,” and following the route of a performance event and ritual called LA Queer Posada in 2011, the author charts a sonic trail composed of sounds, songs, and memories of places and people in Silver Lake displaced by gentrification and historical erasure. Drawing from sound studies, performance studies and joteria studies, and using oral histories, interviews, archival sources, and ethnography, this essay offers innovative ways to think of queer Latinx sound and space as it adds layers to the palimpsestic map of Silver Lake and beyond. While listening to urban hauntings, sounds of loss, celebration and resistance, it offers new ways of remembering, performing and imagining community, futurity, and a more just world.
Before BBQ Becky
Authors: Werth Alex
Published: December 2021

In 2018, a White woman called the police on two Black men who were holding a cookout on the shores of Lake Merritt in Oakland, CA. Branded “BBQ Becky” by Black Twitter, this incident ricocheted around the digital mediascape, contributing to a national debate about racist policing and the dangers of “living while Black.” Many commentators interpreted the struggle over Black cultural practices at Lake Merritt in terms of the now common, even generic, narrative of tech-induced gentrification in the Bay Area. But this elided the fact that the violence of BBQ Becky reproduced an enduring drive to regulate Black geographies and sounds as a means to control the post-emancipation social order. This article argues that scholars and activists need to attune to the “racial reverberations” that continue to loop in contemporary spatial struggles, especially ones involving sound. Drawing upon archival and ethnographic materials, it provides a recursive account of struggles over Black public cultures in Oakland from World War II until the present, thus suggesting that the racial/spatial control embodied in BBQ Becky can’t be reduced to the gentrification narrative alone. Ultimately, this article centers the temporalities of African American epistemologies and musics to realign U.S. gentrification studies with the haunting rhythms of geographic harm and repair experienced by those most impacted by urban dispossession.
Severe insulin resistance in long-term acute leukaemia survivors: lesson learned from a clinical case and review of the literature
Authors: Bashir Bilal , Banerjee Moulinath
Published: December 2021

With the improvement of haematopoietic stem cell transplantation (HSCT) and radiotherapy, the population of cancer survivors is increasing and therefore increasing the number of patients living with late metabolic complications. We describe a case of a childhood acute lymphoblastic leukaemia survivor who developed insulin resistance 10 years after HSCT and total body radiation requiring a high dose of insulin (>1,500 IU). Using insulin-sensitising agents metformin and thiazolidinediones improved the control and reduced the insulin requirement – eventually stopping insulin. We describe for the first time the phenomenon of reverse diurnal variation in insulin sensitivity based on the clinical picture alone, which has not previously been described in the literature. We have reviewed the plausible mechanisms of developing insulin resistance, reverse diurnal variation and the role of thiazolidinediones in reducing lipotoxicity and adipocyte differentiation resulting in improved insulin sensitivity in such cases.
Agrifood systems literacy: Insights from two high schools’ programs in Ontario
Authors: Martin Alicia , Massicotte Marie-Josée
Published: December 2021

Following the increased industrialization and globalization of the prevailing agrifood system, researchers and practitioners have highlighted the detrimental impacts of this model on human health, food security, and the environment. As such, experts and citizens are calling for an increased awareness, through food literacy (FL), to improve health and justice and to transition towards sustainable agrifood systems. Building on field research, critical pedagogy, and existing FL analyses, we argue for incorporating both health and well-being, and agrifood systems dimensions into FL programming. By doing so, FL can contribute to promote individual health, as well as more sustainable agrifood systems policies and practices based on the principles of food sovereignty. Through qualitative research with students and teachers in two Ontario high schools, we explore the content and approaches taken in food-related programming. Aspects of FL among students are also explored in order to highlight their strengths and limitations. Further, we point to the challenges faced by teachers in delivering food-related courses. We propose a conceptual framework that highlights the benefits of including the multiple dimensions of FL as a way to test and improve existing FL programs, and eventually train future generations of teachers, students, and citizens.
Reflecting on food pedagogies in Canada
Authors: Classens Michael , Sumner Jennifer
Published: December 2021

The original deadline for submissions for this special issue was March 1, 2020, just days before the destabilizing and disorienting first wave of pandemic-related shutdowns in many parts of Canada. The (r)evolution in food systems pedagogy we were hoping to document and celebrate was promptly preempted by an abrupt transition to virtual learning. In an instant, teachers and learners alike were attending to a pedagogical revolution of another kind altogether. The enduring impacts of this upheaval remain unclear. In the immediate term, though, the shift to online learning presented a crisis (a hasty ‘pivot’ to online teaching and learning) within a crisis (the daily reality of living within the context of a deadly global pandemic). For many critical food systems students and teachers, these new crises layered on top of the already front-of-mind crises propelled by the capital-intensive, industrialized food system. Like peering through translucent nesting dolls, we squinted through layers of pedagogical disruption and pandemic to remain focused on the economic, social and ecological devastation wrought by our dominant food system, and for glimpses of the pluriverse of food systems alternatives that inspire and nourish us.
Catholic Classroom Communities During Remote Teaching
Authors:   Santa Clara
            University, Beltramo John L. , Layam Krizia ,   Santa Clara
            University, Lucas Julia ,   Santa Clara
            University, Schmitt John ,   Santa Clara
            University
Published: December 2021

In this COVID-era study, Catholic school teachers report the challenges that they
experienced in supporting classroom communities during remote instruction, as well as
the strategies that they enacted to address such challenges and make robust
relationships with and among remote students. While teachers engaged in remote teaching,
they were also studying in a Catholic Master of Arts in Teaching program, where they
participated in weekly Freirian culture circles — structured dialogues designed to help
teachers identify problems of equity and collectively devise appropriate responses. The
teachers found that classroom community was hindered by a lack of in-person affordances,
socioemotional stressors related to the pandemic, struggles to engage students, and
structures of hybrid teaching. In response, teachers used the culture circles to create
and/or share strategies for supporting remote classroom communities, such as classroom
meetings and smallgroup collaboration. Teachers recognized that efforts to develop
classroom communities were intimately connected to commitments to equity.
Utilizing Comparative Education as a Platform for Deepening Student Engagement with
Catholic Social Teaching: An Exploratory Case Study in Study-Abroad
Authors:   Seton Hall
            University, Meadows Bryan
Published: December 2021

Central to the mission of Catholic higher education are the themes of Catholic
social teaching. This contribution to the Education in Practice section recounts a
15-week undergraduate course that deepened student engagement in Catholic social
teaching themes through comparative education studies and a study abroad experience to
Japan. A detailed description of the course’s main segments draws on artifacts of
student coursework and post-interviews. The contribution of comparative education is
that students are provided a platform upon which they can explore deeper, underlying
principles to individual Catholic social teaching themes. This contribution further
provides practitioners step-by-step guidance in how to develop similar learning
experiences for students in their university context. This report of Catholic Education
at the classroom-level fits into the existing knowledge of how universities in the
United States are engaging undergraduates in Catholic social teaching themes, as an
expression of Catholic mission.
Effects of Atomic Ordering of Interstitial Hydrogen on the Physical Properties of Host Metals
Authors:   G.V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine, Ratishvili I.G. , Tatarenko V.A ,   G.V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine
Published: December 2021

Physicochemical data on the infl uence of interstitial atoms of hydrogen isotopes on the properties of face-centred cubic, body-centred cubic and hexagonal close-packed metals are reviewed on the basis of statisticalthermodynamic theory of long- and short-range atomic order. Examples of the application of metal—hydrogen alloys are given.
Modelling of shear stress field in glide plane in substitutional solid solutions
Authors:   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Lugovy M. I. , Verbylo D. G. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Brodnikovskyy M. P. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine
Published: December 2021

The formation of stochastic shear stress field in the glide plane in the substitutional solid solution was investigated by computer simulation. If the atoms in the crystal lattice nodes of the substitutional solid solution are considered as a kind of point defects in the virtual solvent medium, the shear stress distribution in the glide plane can be calculated based on the interaction of edge dislocation and such defects. For concentrated solid solutions, the shear stress will be a normally distributed random value with zero mathematical expectation. The standard deviation of this distribution will be the greater the greater the effective distortion of crystalline lattice of the alloy. In the case of dilute solid solution, where one of the components has a predominant content, the simulation gives shear stress distribution in the glide plane, where large peaks are separated from each other by wide areas of near-zero stresses. Thus, there are separate discrete obstacles in the form of large stress peaks for the edge dislocation in the glide plane in dilute solid solution, and the space between the peaks is practically stress-free. The average distance between large peaks correlates with the average distance between the atoms of those components that are few in solution, if total atomic fraction of these components is considered. Thus, the proposed modeling gives a very realistic shear stress distribution in the glide plane for concentrated and dilute substitutional solid solutions with fcc and bcc structures. This can be useful in further modeling the yield strength in multicomponent alloys. Keywords: dislocation, distorsion, shear stresses.
First principle methods for calculating the linear coefficient of thermal expansion of quasi-binary eutectic systems
Authors:   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Zakarian D. A. , Khachatrian A. V. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine
Published: December 2021

To calculate the linear coefficient of thermal expansion (LCTE) and its temperature dependence, a combination of the method of a priori pseudopotential and quasi-harmonic approximation (author's methods) is used. After approximating the results obtained for metal-like materials (carbides, borides, silicides), the LCTE is presented in an analytical form. In the case of quasi-binary eutectic systems based on carbides, borides, silicides, to estimate the interaction energy of the elements of two components, the concept of a virtual crystal (with a virtual cell) along the line of contact of two components is introduced. A virtual cell is assigned a volume average between the volume of a unit cell of two components, taking into account their concentration ratio. The components that make up the eutectic retain their crystal structure, their LCTE can be estimated as for pure components. Without taking into account the influence of interphase interaction, the LCTE of the eutectic system is determined using the rule of mixtures based on the LCTE components, taking into account their volume fraction. Taking into account the influence of the interface on thermal expansion is estimated by the virtual cell assigned to it. To determine the LCTE of the eutectic system, a ratio is proposed that connects the LCTE components and the docking boundaries through the concentration ratio. This method more realistically describes the structure of a quasi-binary eutectic. There is a consistency between the calculated and experimental data. Keywords: electron-ion system energy, interatomic interaction potential, quasiharmonic approximation, linear coefficient of thermal expansion, eutectic temperature.
Vacuum wetting and contact interaction of some of the metallic melts with indium and tin oxides
Authors:   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Grigorenko M. , Sydorenko T. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Chernigovtsev E. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Durov O. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Poluyanska V. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Konovalenko T. ,   Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine
Published: December 2021

Due to the unique combination of electric and optical properties such semiconductor oxides as tin and indium oxides are very perspective multifunctional materials for variety of microelectronic devices production. Experimental studies of these materials allow to define, for example energetic characteristics of the devices created and also to improve existing technologies of films formation, joining of electrocontacts to tin and indium oxides based materials by way of brazing which require additional wetting studies. It should be noted that data on wetting of mentioned oxides by metals are practically absent in literature. Thus a detailed study of the interfacial interaction, adhesion and wetting of ceramic SnO2 and In2O3 materials with some pure metal melts in vacuum was performed by the sessile drop method using foto- and video- fixing including concentration, temporal and temperature dependences of contact angles. It was found that most of the pure metals studied don't wet SnO2 ceramics. However rather intense chemical interaction took place in vacuum at high temperatures in contact of some metals (Sn, Ge, In) with surface of SnO2. It was also shown the effect of the experiment temperature and hold-up time on the values of contact angles. Wetting angles for powdery pressed specimens of In2O3 in the temperature range studied don't change noticeably and vary in a narrow range. For example, for Ga wetting angles vary from about 138 to 128 deg and for Sn  125119 deg, Wetting of SnO2 surface with AgCu melt with different copper content was shown to be insufficient to use it as a brazing alloy, yet this system can be used as a basis for creating a brazing composition. Keywords: indium oxide, tin dioxide, semiconductor, wetting, contact interaction, metal melt.
Coercive force of double layer ferromagnetic materials
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Rybachuk V. G. , Uchanin V. M. ,   Karpenko Physico-Mechanical Institute of the NAS of Ukraine
Published: December 2021

Peculiarities of the coercive force (CF) measuring of inhomogeneous ferromagnetic materials, in particular layered ones, are considered. The concept of effective CF of layered ferromagnetic materials is introduced. The analysis of the magnetic fluxes distribution in a double layer ferro-magnetic material during its reversal magnetization by an attachable transducer with a U-shaped core made of soft magnetic material is carried out. An analytical expression of the effective CF for such class of materials for the case of the same layers’ thickness and linear approximation of their demagnetization curves is obtained. It was found that the effective CF of a double layer ferromagnetic material is determined not only by the CF of its individual layers, but also by the values of their residual induction. Experimental verification of the obtained results was performed on experimental samples, which were collected from steel 08kp (sample # 1) and steel St3 (sample # 2) plates. Each of the samples was a stack of 6 plates each measuring 87×50×1 mm. With tight compression of the plates and complete elimination of the gaps between them, these samples can be considered as single layer ferromagnetic structures with a thickness of 6 mm. To model a double layer ferromagnetic material with the same layer thickness, sample № 3 was used. Its the upper part consisted of the three steel 08kp plates and the lower part – of the three steel St3 plates. To measure the magnetic parameters of these samples the KRM-Ts-MA type magnetic analyzer was used. The device permit to measure the CF, residual induction and other parameters of the hysteresis loops of ferromagnetic materials in the closed magnetic circuit by attachable type transducers with U-shaped core. The transducer used with the magnetic analyzer during the experiments had poles with an area of 16×32 mm and the distance between the edges of the poles: inner – 32 mm, outer – 64 mm. It is shown that the discrepancy between the calculated value of the effective CF of the double layer ferromagnetic material (sample # 3) from steel 08kp and St3 according to the obtained expression and the measurement results is about 3%. This confirms the adequacy of the proposed model of reversal magnetization of double layer ferromagnetic material and the correctness of analytical calculations.
Application of magneto-optical method for detection of material structure changes
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Maksymenko O. P. , Suriadova O. D. ,   Karpenko Physico-Mechanical Institute of the NAS of Ukraine
Published: December 2021

The possibilities of magneto-optical sensors to control the damage of ferromagnetic and para-magnetic materials and products are considered. In the introduction it is shown that modern magneto-optical materials used in creating sensors have a high sensitivity and spatial resolution. So, on their basis it is possible to develop sensitive and informative means of non-destructive testing for a wide range of applications. For example, it is used to detect microcracks, corrosion damage, degradation changes in the material structure, surface deformations, and subsurface defects. The method ability to detect appearance of magnetic phases in paramagnetic materials, that are precursors of fracture, is of a special importance. The advantage of magneto-optic sensors is a large observation area and high spatial resolution. Resolution of the sensor is determined by the period and size of the domain structure, which averages 13...50 micrometres. High sensitivity of the sensor is due to a small saturation field of the magneto-optic material from 0.1 mT to 0.7 mT. In addition, these parameters are controlled by changing the temperature of the sensor, direction and intensity of the magnetic field. In this paper an optical scheme based on magneto-optical garnet film for visualization of fatigue cracks, which are formed in compact samples during their experimental investigation on fatigue failure is described. The developed scheme allowed us to visualize and fix position of the crack and determine its actual length, considering the closed part of the crack. A further direction of research will be to increase the sensitivity of the developed scheme and reduce the noise of magneto-optical images to identify the initial stages of the degradation process of ferromagnetic and paramagnetic materials and products.