bluuebunny/crossref_metadata_2025_split huggingface dataset:
La didattica dell’italiano a distanza: un case study
Authors: Matteucci Paolo 
Published: September 2021

ABSTRACT: Questo saggio si propone il fine di misurare l’impatto della transizione dalla didattica in aula a quella a distanza nel contesto dei corsi di italiano per principianti offerti, nel semestre autunnale 2020, dal Programma di Italiano dell’università canadese Dalhousie. Prendendo simultaneamente in considerazione i risultati del feedback formale e informale fornito dagli allievi, i dati raccolti tramite la ricerca-azione e l’osservazione dei corsi da parte di specialisti esterni, e una molteplicità di parametri valutativi, il presente intervento mira a delineare alcuni vantaggi e svantaggi dell’insegnamento a distanza dell’italiano come lingua straniera.Parole-chiave: Didattica dell’italiano. Glottotecnologie. Ricerca-azione. RESUMO: Este artigo analisa o impacto da transição das aulas presenciais ao formato virtual, especificamente no contexto das três seções do curso “Italiano para Iniciantes” oferecido no segundo semestre de 2020 pelo Programa de Italiano da Universidade de Dalhousie, Canadá. Justapondo os feedbacks formais e informais dos alunos, os dados recebidos da observação de terceiros através de pesquisa-ação e as avaliações de diversos indicadores de sucesso, este artigo visa delinear algumas vantagens, bem como os principais desafios, do ensino a distância do italiano enquanto idioma estrangeiro.Palavras-chave: Didática do italiano. Glototecnologias. Pesquisa-ação. ABSTRACT: This paper scrutinizes the impact of the transition from face-to-face teaching to online instruction, in the context of the Italian for Beginners courses offered in the fall semester 2020 by the Italian Program at Dalhousie University, Canada. By juxtaposing the student’s formal and informal feedback, the input received from third-party observation via action-research, and the assessment of a variety of indicators of success, this paper aims at outlining some advantages, as well as the main challenges, inscribed into at-distance teaching of Italian as a foreign language.Key words: Teaching Italian as a foreign language. At-distance instruction. Action-research.
ANÁLISE DO CONTO “O ESPELHO”: Reflexões Sobre o Materialismo Ideológico do Discurso na Sociedade Capitalista.
Authors: Moreira Karyelly Guimares , De Freitas Lúcia Gonçalves 
Published: September 2021

O presente estudo tem a intenção de discorrer sobre o materialismo ideológico do discurso, através de uma abordagem qualitativa interpretativista da narrativa ficcional O Espelho-Esboço de uma nova teoria da alma humana (1994), de Machado de Assis. Para isso, respaldo-me nas concepções de Bakhtin (1989), sobre Marxismo e Filosofia da Linguagem e na obra O capital de Karl Marx (1983), acerca das categorias essência e aparência e fetichismo de mercadorias. Isto posto, a metodologia de análise permitiu demonstrar a relação dos objetos e do capitalismo na constituição de identidades na sociedade.
Spinopelvic fixation: indications, anatomical and biomechanical aspects and historical development of methods
Authors: Vetrile M. S. , Kuleshov A. A. , Aganesov N. A. , Zakharin V. R. 
Published: September 2021

A review of the literature on performing spinopelvic fixation for injuries and various pathologies of the spine and pelvis is presented. The review is analytical in nature and was carried out using databases of medical literature and search resources of PubMed and eLibrary. The following aspects are highlighted: the relevance and indications for performing spinopelvic fixation and its anatomical and biomechanical features. The historical aspects of the development of methods for performing spinopelvic fixation are considered and structured. The analysis of various methods of spinopelvic fixation (using hooks, screw insertion into the S2 sacral wings, L-shaped Luque rods, distractors, transiliac rods, Jackson, Harrington and Galveston techniques) was carried out. The features of surgical techniques, their advantages, disadvantages and complications are considered.
Use of vacuum systems for early implant-associated infection after decompression and stabilization surgery for lumbar spinal stenosis
Authors: Shapovalov V. K. , Basankin I. V. , Afaunov A. A. , Gulzatyan A. A. , Takhmazyan K. K. , Tayursky D. A. , Tomina M. I. 
Published: September 2021

Objective. To analyze the results of treatment of patients with implant-associated surgical site infection after decompression and stabilization surgery performed for lumbar spinal stenosis.Material and Methods. Results of treatment of 43 patients with early (up to 90 days after the operation) suppuration of the surgical wound after decompression and stabilization operations for lumbar spinal stenosis were analyzed.Results. A total of 4033 operations for lumbar spinal stenosis with implantation of stabilization systems were performed from 2015 to 2019. There were 43 (1.06 %) cases of early suppuration of the surgical wound with the installed instrumentation. Out of them seven (16.27 %) cases were superficial and 36 (83.78 %) – deep. In all cases, the wound revision, surgical debridement and installation of a vacuum assisted closure (VAC-dressing) were performed. The treatment of superficial suppuration was accompanied by a single installation of a VAC-dressing before wound closure, and in deep suppuration from 2 to 8 (on average 4.10 ± 1.73) VAC-dressings were changed. Wound healing was achieved in all patients within 14–55 (average 29.10 ± 10.06) days. Timely diagnosis of the complication and application of negative pressure therapy allowed arresting the inflammatory process and preserving the implants in all patients with a follow-up period of 12 months.Conclusion. In the case of development of early suppuration of the surgical wound, the patient needs an urgent sanitizing operation. Negative pressure treatment with VAC-dressings is an effective and safe way to relieve this complication. This method combined with etiotropic antibiotic therapy makes it possible to quickly cleanse and heal the wound while preserving the implanted instrumentation.
Influence of neodymium laser radiation on the frequency of recurrence and continued growth of extramedullary tumors
Authors: Eliseenko I. A. , Struts S. G. , Stupak V. V. 
Published: September 2021

Objective. To assess the effect of neodymium laser radiation on the recurrence rate and continued growth of primary extramedullary tumors on the basis of clinical data obtained in the long-term follow-up period in operated patients with extramedullary tumors.Material and Methods. The long-term results of surgical treatment of two groups of patients (n = 412) with primary extramedullary tumors operated on from 1998 to 2014 were studied and systematized. Patients of comparison group (n = 277; 67.2 %) underwent removal of tumors using standard microsurgical techniques, and the neoplasms in patients of the study group (n = 135; 32.8 %) were removed with additionally used neodymium (Nd:YAG) laser.Results. The use of the developed laser technologies for the resection of extramedullary intracanal primary tumors made it possible to reliably reduce the relative number of recurrence and continued growth from 11.1 % to 1.2% compared with patients treated with standard surgery methods. The proportion of recurrences was 3.5 %, all of them were detected only in the group with the classical technique of tumor resection (p <0.01).Conclusion. The use of a neodymium laser as an additional technology to the classical microsurgical resection of extramedullary tumors is effective for the prevention of their recurrence and continued growth.
Hospital mortality in hematogenous vertebral osteomyelitis
Authors: Bazarov A. Yu. , Sergeyev K. S. , Faryon A. O. , Paskov R. V. , Lebedev I. A. 
Published: September 2021

Objective. To analyze lethal outcomes in patients with hematogenous vertebral osteomyelitis.Material and Methods. Study design: retrospective analysis of medical records. A total of 209 medical records of inpatients who underwent treatment for hematogenous vertebral osteomyelitis in 2006–2017 were analyzed. Out of them 68 patients (32.5 %) were treated conservatively, and 141 (67.5 %) – surgically. The risk factors for lethal outcomes were studied for various methods of treatment, and a statistical analysis was performed.Results. Hospital mortality (n = 9) was 4.3 %. In patients who died in hospital, average time for diagnosis making was 4 times less (p = 0.092). The main factors affecting mortality were diabetes mellitus (p = 0.033), type C lesion according to the Pola classification (p = 0.014) and age over 70 years (p = 0.006). To assess the relationship between hospital mortality and the revealed differences between the groups, a regression analysis was performed, which showed that factors associated with mortality were Pola type C.4 lesions (OR 9.73; 95 % CI 1.75–54.20), diabetes mellitus (OR 5.86; 95 % CI 1.14–30.15) and age over 70 years (OR 12.58; 95 % CI 2.50–63.34). The combination of these factors increased the likelihood of hospital mortality (p = 0.001). Sensitivity (77.8 %) and specificity (84.2 %) were calculated using the ROC curve. In the group with mortality, the comorbidity index (CCI) was significantly higher (≥4) than in the group without mortality (p = 0.002). With a CCI of 4 or more, the probability of hospital death increases significantly (OR 10.23; 95 % CI 2.06–50.82), p = 0.005. Long-term mortality was 4.3 % (n = 9), in 77.8 % of cases the cause was acute cardiovascular pathology, and no recurrence of vertebral osteomyelitis was detected.Conclusion. Hospital mortality was 4.3 %, and there was no mortality among patients treated conservatively. The main risk factors were diabetes mellitus, type C lesion according to Pola and age over 70 years. There was a significant mutual burdening of these factors (p = 0.001). With CCI ≥4, the probability of death is higher (p = 0.005).
Old Age as Horror Vision or Comfort Zone in the Late Fiction of Contemporary British Novelists
Authors: von Rosenberg Ingrid 
Published: September 2021

Abstract
Old people have always figured in literature, but the unprecedented and worldwide growth of longevity in the twentieth century has triggered new fictional approaches to the topic of aging. Thus, since the late 1980 s, an ever growing number of established British writers, reaching their own advanced years, have written on age from an insider’s perspective, creating old main characters and focusing on their mental and physical experiences. I have examined six of such novels, published between 1986 and 2019, trying to find out how the authors construct their heroes’ and heroines’ aging selves by imagining their attitudes to certain central issues like time, death, physical decay and human relationships. Of the classical formative categories (gender, class, ethnicity, etc.) gender has proved to be the most essential, especially when it comes to the perspectives on time. While the view of heroes created by male writers remains fixed on the past, often with nostalgia, sometimes with regret, the women authors’ heroines focus on their present situation with a view to the future, represented by children and grandchildren. Class turned out to be a second important category: the (uncontemplated) safe middle-class position of all protagonists appears as an indispensable precondition for the free choice of attitude to the challenges of aging.
Successful pregnancy outcome in patient with cardiac transplantation
Authors: Karcaaltincaba Deniz , Ozdogan Mehmet Emin , Turgut Ezgi , Ozdemir Halis , Tacoy Gülten , Inan Gözde 
Published: September 2021

Abstract

Objectives
The population of female heart transplant recipients of reproductive age is increasing and pregnancy follow-up of these patients is important.

Case presentation
A 30-year-old patient who had a heart transplant due to viral myocarditis became pregnant spontaneously. A close follow-up by a multidisciplinary team allowed a normal pregnancy without maternal or fetal complications and the delivery of a healthy infant.

Conclusions
Successful pregnancy outcomes are possible in women who had a heart transplant. Careful and close surveillance by a multidisciplinary team is mandatory.
Study of the corrosion-inhibiting activity of the green materials of thePosidonia oceanicaleaves’ ethanolic extract based on PVP in corrosive media (1 M of HCl)
Authors: Gaber Ghalia A. , Ghobashy Mohamed Mohamady , Madani Mohamed , Alshangiti Dalal Mohamed , Alkhursani Sheikha A. , Al-Gahtany Samera Ali , Nady Norhan 
Published: September 2021

AbstractSince the corrosion protection of mild steel samples in corrosive media (1 M of hydrochloric acid [HCl]) was cheap and successful, the ethanol extract ofPosidonia oceanicaleaves based on polyvinylpyrrolidone (P. oceanica/PVP) was analyzed using the weight reduction, the open circuit potential, and the potentiodynamic polarization methods. The obtained results explained that the productivity of hindrance increments had the greatest restraint efficiency of ∼81% at 1,000 ppm, as the concentration of the extract increased. Liable for adsorption as a thin layer on the surface of mild steel to protect it, the creation of kaolin-traced phenolic and polysaccharide compounds was confirmed by the Fourier transform infrared spectroscopy analysis. A scanning electron microscope was used to evaluate the inhibitive action ofP. oceanica/PVP against steel in corrosive media and the change in surface morphology was considered. It is presumed that the ethanol removed from thePosidonia oceanicaleaves can fill in as a compelling consumption inhibitor for gentle steel in HCL solution (1 M).
English language education reform in pre-2020 Olympic Japan: educator perspectives on pedagogical change
Authors: Weinmann Michiko , Kanaizumi Ryo , Arber Ruth 
Published: September 2021

Abstract
This paper reports on the perspectives of English language teachers and teacher educators on the most recent English language education policy and curriculum reform in Japan, implemented in preparation for hosting the 2020 Olympic and Paralympic Games in Tokyo. Previous research has comprehensively analysed how language ideologies based on national imaginaries, native-speakerism and deficit views of Japanese teachers’ pedagogy and practice continue to frame debates about English language education in Japan. Through select thematic episodes derived from the interview data with English language practitioners located in Japan, this paper brings into focus the views of English language educators who articulated insightful counter-positions to taken-for-granted understandings of effective English language use and teaching. The authors argue that in order to effect a paradigm shift in global English language education, in Japan and internationally, it is important to incorporate a critical examination of teacher perspectives that challenge and augment prevalent tropes about English language teaching and learning. The paper concludes with implications for addressing the policy-practice and theory-practice divides in English language education. It argues that a continued engagement with educator perspectives is an important space for bringing about a transformation of language ideologies and pedagogical change at the grass-roots level of the English language classroom.
Is there a Duty to Prevent Harm in Tort? A Common Law Perspective
Authors: Giliker Paula 
Published: September 2021

Abstract
In this paper, I will examine the extent to which the common law of tort in England and Wales imposes a duty to prevent harm on public authorities and private individuals. As will be seen, the starting point for the common law is that such liability should, in both cases, be regarded as exceptional. This must, however, be weighed against duties to prevent harm that arise under the torts of negligence and breach of statutory duty. Public authorities may also face claims that their failure to prevent harm is in breach of ECHR arts 2 or 3. While the law is complex, this paper identifies three key arguments that explain the current legal position at common law, namely that: (i) tort law should treat private and public parties alike: (ii) human rights claims should be treated as distinct from private law claims and (iii) libertarian concerns signify that a duty to prevent harm should be exceptional and needs to be justified. While these arguments provide both an explanation of and a justification for the current law, this article questions to what extent the treatment of public authority liability may be regarded as unduly harsh on vulnerable claimants.
An uncountable family of finitely generated residually finite groups
Authors: Chong Hip Kuen , Wise Daniel T. 
Published: September 2021

Abstract
We study a family of finitely generated residually finite groups.
These groups are doubles

F
2

*
H

F
2

F_{2}*_{H}F_{2}

of a rank-2 free group

F
2

F_{2}

along an infinitely generated subgroup 𝐻.
Varying 𝐻 yields uncountably many groups up to isomorphism.
Testing of mechanical butt joints in composite structures
Authors: Altan Gurkan 
Published: September 2021

Abstract
As the main contribution of the present study, an I-shaped joining element, which allows the plates used in large composite structures to be joined butt-to-butt, has been improved in terms of load capabilities. It is desirable that the joining zones of composite plates not be visible according to the design of composite structures and the requirements for the desired use in particular. In other words, it is not desirable to create any surfaces that would cause protrusions in the joining zones. The only joining technique that fulfils this condition is the butt joint. Generally, butt joints are performed by bonding. With this technique, it is possible to make a more durable mechanical butt joint using an I-shaped joining element. In this way, instead of bonding butt joints, stronger non-bonding or bonding mechanical butt joints can also be achieved. In this study, the geometric changes in the shape of an I-shaped joining element used in mechanical butt joints and the changes in load-carrying capabilities have been studied experimentally and numerically. Experiments were carried out with tensile, three-point bending and four-point bending tests. The experimental specimens and I-shaped joining elements were cut using a water jet machine. Abaqus finite element analysis software was used for numerical analysis. The numerical data obtained in the study were found to be consistent with the experimental data. The load-carrying capabilities of the joining elements of different geometric shapes were studied numerically and experimentally, and it was found that the ideal element was the joining element with a 60° angle.
Experimental Investigation of the Magnetic Abrasive Finishing of SS310s
Authors: Suganeswaran Kandasamy , Parameshwaran Rathinasamy , Mohanraj Thangamuthu , Meenakshipriya Balasubramaniyam , Nithyavathy Nagarajan 
Published: September 2021

Abstract
Magnetic abrasive finishing (MAF), an unconventional process, enhances the surface finish of a material. The current research focuses on its use with SS310s. The finite element analysis (FEA) result shows the effect of control parameters on the magnetic flux density. In FEA analysis, it was decided to maintain an air gap of 1.5-2 mm and a voltage of 10-20 V. A response surface methodology (RSM) desirability function is used to identify the optimal process parameters. Experiments are conducted for optimizing the process parameters like voltage, rotational speed, machining gap, mixing ratio, and mesh number to enhance the material removal rate (MRR) and surface roughness (Ra). A series of 62 experiments are conducted using optimized process parameters at different levels. Moreover, analysis of variance (ANOVA) is used to identify the percentage contribution of each process parameter in %ΔRa and MRR. From this, the mesh number of the abrasives plays an important role in the finishing process owing to the increased number of cutting edges and because of the uniform normal force (Fn) distribution. The optical microscopic image result and the wear test confirms that the surface finish of SS310s has been improved using MAF.
Crystal structure of catena-poly[(μ2-1-((2-ethyl-4-methyl-1H-imidazol-1-yl)methyl)-1H-benzotriazole-κ2N:N′)-(nitrato-κ2O,O′)silver (I)], C13H15Ag1N6O3
Authors: Chen Yan 
Published: September 2021

Abstract
C13H15Ag1N6O3, monoclinic, P21/c (no. 14), a = 9.0684(6) Å, b = 21.5490(10) Å, c = 9.1728(7) Å, β = 118.101(10)°, Z = 4, V = 1581.2(2) Å3, R

gt
(F) = 0.0425, wR

ref
(F
2) = 0.0877, T = 293(2) K.
The Cardial–Epicardial Early Neolithic of Lower Rhône Valley (South-Eastern France): A Lithic Perspective
Authors: Defranould Elsa 
Published: September 2021

AbstractIn the lower Rhône Valley, many sites are attributed to the Early Neolithic and dated between 5600 and 4800 cal. BC. According to their ceramic production, they are associated with two cultural facies: the Cardial and the Epicardial. The relation between these two entities is still under debate (chronological, cultural or functional distinctions?). However, little is known about the lithic production of the region since the chipped stone industries are rarely evoked in the socioeconomic and cultural understanding of these first agropastoral societies. The objective of this paper is to propose a regional synthesis regarding Early Neolithic lithic industries, based on typo-technological studies of several assemblages in the Rhône Valley: The Montclus rockshelter (layers 5 to 2), the Baume de Ronze rockshelter, Le Taï and the Aigle cave. These sites are considered to be the key sites for understanding the Cardial/Epicardial complex in this area, but their lithic assemblages have never been thoroughly studied. Special attention will be given to the factors of variability or, on the contrary, to the permanence in the “schema opératoire”and we will propose explanations related to geological, functional, chronological and cultural constraints. We will also focus on lithic blade production made from honey flint and the spacialisation of “chaine opératoire” which could highlight circulation of this raw material and specialised distribution network. Finally, this synthesis is based on a renewed corpus of radiocarbon dates in order to understand this evolutionary dynamic as finely as possible.
Aristotle on Flight: Air as an External Resting Point
Authors: Coren Daniel 
Published: September 2021

Abstract
I reconstruct Aristotle’s explanation for why and how birds are capable of natural flight. For Aristotle, air is a markedly different external resting point in comparison with water and earth, and nature has designed birds so as to take advantage of the unique way in which air affects the inequality between (a) the pushing downward, that is, the downward force and (b) the resistance. My discussion sheds some light on Aristotle’s anticipation of some aspects of modern fluid dynamics and aerodynamics.
Green corrosion inhibitor: Cymbopogon schoenanthus extract in an acid cleaning solution for aluminum brass
Authors: Deyab Mohamed A. , Al-Qhatani Mohsen Mohammed 
Published: September 2021

Abstract
The purpose of this study was to see if Cymbopogon schoenanthus aerial extract (CSA extract) could reduce the corrosion of aluminum brass in acid cleaning solutions in the distillation plant. For this assessment, measurements of weight loss and polarization technique have all been used. We discovered that at 250 ppm, the efficiency of CSA extract was excellent (97%). Polarization assessments confirmed that the organic compounds in CSA extract were effective mixed-type corrosion inhibitors. HPLC and FTIR analysis were used to explore the key chemical components of CSA extract. CSA extract caused the corrosion process to have a higher energy barrier. Observations of SEM and FT-IR spectra confirmed that CSA extract prevents corrosion attacks at the aluminum brass’s surface.