bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital Inequities and Digital Inclusion in Education
Authors: George Babu , Ward Yaprak Dalat , Jones Elodie
Published: May 2022

COVID-19 exposed a wide range of challenges hidden unnoticed in the promise of digital education. Digital education was once promised as the grand equalizer of access and inclusion in education. However, the massive deployment of digital tools in the educational realm during COVID-19 provided significant counterevidence to this promise. If education is a fundamental right and if digital technologies are the only way to gain access to education, it is important that these technologies be made available to everyone for effective use. However, as COVID-19 would demonstrate to us, this has not been the case. There have been stark and widespread inequities in the availability and quality of digital technologies for education, and the need for purposeful efforts to bridge the gap was felt prominently. In the backdrop of COVID-19, this chapter identifies some of the key equity issues and proposes solutions to address them.
Rethinking the Curriculum to Reflect a Digital Age Model of Competencies, Dispositions, and Capabilities
Authors: Crawford Caroline M. , Andrews Sharon K.
Published: May 2022

The transformations that have been occurring during the digital age have upended more traditional understandings regarding the teaching and learning process. A recognition of competencies that reflect a novice level of proficiency, dispositional understandings associated with professional expectations and ethics, as well as an experienced aptitude that reflects the capabilities that highlight a capacity towards an enhanced level of subject matter understanding are a progressive style of curricular design and engagement that supports a rethinking of training and talent development in the digital age. This discussion focuses upon a competencies, dispositions, and capabilities model that rethinks curricular design, development, implementation, and evaluation, towards transforming an understanding of teaching, learning, and talent development in the digital age.
Transformations in K-12 Teaching
Authors: Bromer Billi L. , Deeb Anna M. Dudney
Published: May 2022

The pandemic caused a sudden shift to virtual learning for K-12 students. It also pointed out the inequities that online teaching produced for students without online access, students with unique needs, and vulnerable students without predictable or safe home environments. The consequences of the pandemic included decreased student enrollment and attendance, learning loss, and mental health issues. This chapter explores the possibility of seeing the silver lining within the dark cloud the pandemic brought by an examination of the issues of inequity that arose during the pandemic and an exploration of realistic and manageable solutions. Stronger efforts to meet all individual student needs through more individualized and student sensitive approaches and openness to innovative learning environments are solutions that are possible. The chapter concludes by imagining future transformations through educational reform, enhanced educator preparation, and the development of communities of practice so that no future crisis leaves any child behind.
Exploring the Impact of Online Teaching on Academic Identities
Authors: Lokhtina Irina A. , Tyler Mark A.
Published: May 2022

The contextual changes in teaching and learning that have been accelerated by the COVID-19 pandemic have highlighted the need for an enhanced understanding of the intersection between the academic work of teaching and well-being. This chapter aims to explore how academics build and sustain their identities in digital spaces and what key conceptual solutions they hold to enable their own effective workplace learning. Semi-structured interviews with 11 academics of all ranks involving part- and full-timers working in a private university in the Republic of Cyprus were conducted. The findings reveal complexities and uncertainties facing academics in digital spaces, which led to their transformative learning, as the threshold concepts of their education philosophy were challenged. The chapter concludes by summarising suggestions for academics and institutions on how to support the development of academic digital competencies, ones that might be adopted in an attempt to create a more purposeful provision of ongoing workplace learning for academics in a post-pandemic era.
Teaching and Learning in Turbulent Times
Authors: Lee Tony , Cheng Ruby
Published: May 2022

The COVID-19 pandemic has affected 91% of the educational institutions globally and forced educational institutions to shut down. The public health crisis has caused issues among international college students, particularly students of Chinese or Asian descent. This chapter focuses on how American colleges and universities responded to this public health crisis, when in-person classroom instruction suddenly became unavailable, forcing instructors and international college students to transition to online/remote learning. Also, the chapter discusses international college students' experience with online learning, and the challenges and opportunities instructors experienced with online teaching in turbulent times. The authors also offer recommendations on ways to improve online teaching and online learning for instructors and international college students.
Advancing Community Engagement Scholarship as a Teaching and Learning Strategy in Higher Education
Authors: Tshishonga Ndwakhulu Stephen
Published: May 2022

This chapter explores community engagement within the higher education sector as a teaching and learning strategy. This chapter argues that community engagement (CE) is key in generating knowledge that can be used for teaching and learning purposes. In this chapter, community engagement is viewed as a pedagogical strategy and the knowledge generated tool which can enrich teaching and learning. Universities are part of the higher education sector and are therefore mandated to develop human capital and creating critical environment upon which university community and communities can be partners in knowledge generation and dissemination. The chapter make use of community-based learning module offered by the Department of Built Environment and Development Studies at the University of KwaZulu-Natal, South Africa. Ten registered students were interviewed together with the coordinator of the module.
Development Frameworks for Software Startups
Authors: Shanbhag Narendranath , Pardede Eric
Published: May 2022

Although software startups are seen as engines of rapid growth and sources of disruptive innovation, these entities are known to have a high failure rate. In addition to this, owing to the rapidly evolving technology sector and the ever-changing needs of the modern business and consumer markets, it might be worth reviewing the development methodologies presently in use for relevance. Considering newer technological constructs such as cloud computing and corresponding impact that could have on the development process such as the ability to quickly scale will need to be studied as part of such a review. This research works reviews current literature for product, business model, and integrated frameworks involving the two spaces to present the various aspects covered as part of the different paradigms of startup development within the software space. The resultant review presents the areas covered by the different paradigms and presents a view of the various areas from the viewpoint of software startup success factors.
Emerging Technologies Supporting Knowledge Management for Innovation Management
Authors: Okatan Kağan
Published: May 2022

This chapter explores the emerging technologies that have emerged in recent years and have a positive effect on productivity and innovation outputs, with the effect of 'knowledge management'. Digital technology has long seemed like a clear way to improve enterprise knowledge management. Knowledge and information represented digitally and placed on an intranet can be accessed by anyone in the organization at any time in the future. Document management systems, staff directories, and other repositories that define specialties are created and used in some cases. Today, knowledge management systems have become more effective, especially with the effect of ‘internet of things' and ‘artificial intelligence'. The purpose of this chapter is to demonstrate to academics, students, business professionals, and entrepreneurs how developing technologies have an impact on knowledge management and effective use of intellectual capital for innovation.
Sixteen Limitations for Five Popular Requirements Prioritisation Approaches
Authors: Hoy Zoe
Published: May 2022

Software is an essential commodity that ensures mobile phones to the controls of an aeroplane work. There will always be more requirements for software than there is time and budget to achieve them, hence the need for various prioritisation approaches to decide which requirements to include in the software. There are also constraints for startups, such as small teams and multiple influencers, which must be considered when choosing a prioritisation approach. The wrong approach can waste resources and cause customer dissatisfaction. There is limited research linked to the limitations of requirements prioritisation approaches; however, this research helps to address the research gap. For example, the main contribution identifies 16 limitations associated with five popular prioritisation approaches combined with a framework which identifies the relationships between these limitations. The five requirement prioritisation approaches studied were analytic hierarchy process (AHP), quality functional deployment (QFD), the planning game, binary search tree, and $100 allocation.
Diretrizes para a disseminação da educação a distância, a partir da análise do preconceito contra esta modalidade de educação
Authors: Machisotti Gustavo Guimarães , França Sergio Luiz Braga , Farias Filho Jose Rodrigues de , Pinto Sandra Regina da Rocha
Published: May 2022

Esse artigo tem como objetivo propor diretrizes para a disseminação da Educação a Distância (EaD) no Brasil, a partir da identificação e análise do preconceito contra esta modalidade de educação. Busca, portanto, responder a seguinte pergunta de pesquisa: Como a EaD pode ser amplamente difundida para atender as diversas classes da sociedade, a partir da análise do preconceito contra a EaD? Trata-se de uma pesquisa qualitativa, exploratória e de campo, realizada por meio da coleta de dados online respondido por 100 respondentes; e tratamento dos dados realizado por meio da análise de conteúdo. Para 78% dos respondentes há preconceito contra a EaD e as principais razões são: percepção de que a qualidade do ensino é baixa, falta de credibilidade sobre o processo de ensino-aprendizagem, falta de conhecimento sobre essa modalidade de ensino e resistência ao novo. Conclui-se que há a necessidade de implementar melhorias por parte das instituições de ensino, para um maior reconhecimento da EaD. Assim, diretrizes para a Educação a Distância são propostas visando ampliar oportunidades para a educação em todos os níveis da sociedade, tais como: a necessidade de customização e aprimoramento constante da qualidade do material e do conteúdo; informações sobre as características, formas de interação e processo de ensino-aprendizagem na EaD; divulgação dos resultados comparativos entre os alunos da EaD e presenciais; evidenciar a inexistência de diferença no nível de dificuldade em relação à modalidade presencial; demonstrar a preocupação com o aprendizado efetivo dos alunos e com a possibilidade de se utilizar a EaD em todas as áreas do conhecimento; e promover programas de capacitação e envolvimento dos professores na EaD, a fim de fazer com que superem paradigmas oriundos do ensino presencial.
Comparison among three different bleeding scores and the thrombin generation assay to assess the different hemorrhagic phenotypes in patients with FVII deficiency
Authors: Pasca Samantha , Santoro Cristina , Ambaglio Chiara , Napolitano Marisanta , Milan Marta , Natali Letizia , Nannizzi Silvia , Mori Filippo , Simioni Paolo , Zanon Ezio
Published: May 2022

Defining the bleeding risk in patients with FVII-deficiency is not easy. Aim of this study is to define correlation and differences between three different scores and the thrombin generation assay (TGA) in correctly evaluating the hemorrhagic phenotype in a group of FVII-deficient patients. Fifty-seven patients patients with FVII-deficiency whose hemorrhagic phenotype was assessed by Mariani, ISTH/SSC- Bleeding Assessment Tool (BAT) and Di Minno scores, and by the TGA, were enrolled in this study. TGA parameters (LagTime, Peak, ttPeak, ETP - endogenous thrombin potential) highlighted how both LagTime and ttPeak can discriminate major bleeders from the others, while the same conclusion could not be reached by the ETP and Peak. However, no TGA parameter was found to be useful in separating the mild hemorrhagic phenotype from the moderate one. Scores and TGA were found to be able to only define the severe hemorrhagic phenotypes. None of the methods was able to exactly discriminate the other phenotypes. Given these results, there is therefore a risk of either underestimating or overestimating the potential bleeding risk in patients with non-severe FVII-deficiency.
Vaccine-induced immune thrombotic thrombocytopenia following AstraZeneca (ChAdOx1 nCoV-19) vaccine: report of two cases
Authors: Santoro Rita Carlotta , Minici Roberto , Leotta Marzia , Falbo Mariapia , Elia Lucia Concetta , Leo Francesca , Ierardi Antonella , Strangio Alessandra , Prejanò Simona
Published: May 2022

Vaccination with ChAdOx1 nCoV-19 can result in vaccine-induced immune thrombotic thrombocytopenia (VITT). This phenomenon mimics heparin-induced thrombocytopenia, yet it does not require heparin as a trigger. This case report highlights the potentially lifethreatening complication associated with ChAdOx1 nCov-19 vaccine, clinical presentation, diagnostic approach, and treatment. We report two cases of vaccine-induced immune thrombotic thrombocytopenia after receiving the first dose of the ChAdOx1 nCoV-19 vaccine. We attribute these thrombotic conditions to the vaccine due to the remarkable temporal relationship. The proposed mechanism of VITT is a production of antibodies against platelet factor-4 resulting in massive platelet activation. Healthcare providers should be aware of the possibility of such a fatal complication, and the vaccine recipients should be warned about the symptoms of VITT.
Unmasking the Student Impostor
Authors: Durham Allison J , Anderson Stefanie
Published: May 2022

Healthcare graduate students are constantly adapting to various practice settings and increased rigor to meet program expectations. This increasing level of high expectations and having to perform in front of competent clinicians often induce feelings of inadequacy, anxiety, and fraudulent characteristics of a student impostor. Individuals who identify with the impostor phenomenon may set high self-standards of performance to feel worthy, feel fraudulent, and lack a sense of belonging, and often attribute personal successes to external sources or situations. Identifying the student impostor is the initial step to fostering student success in the clinic. Clinical and academic faculty suspecting a student impostor should take immediate measures to intervene to prevent further decay of the student's clinical experience. Unmasking the student impostor followed with swift interventions using suggested strategies provided in this paper will improve the student's and preceptor's overall clinical experience, leading to a positive outcome.
Suicidal Ideation and Associated Factors among Clients of Primary Care and Religious Care Centers in Thailand
Authors: Peltzer Karl , Pengpid Supa
Published: May 2022

Introduction:

Suicidal ideation is a public health concern. The percentage of prevalence of suicidal ideation found among attendees of primary and religious care centers in Thailand is unclear. The aim of this study was to evaluate suicidal ideation and associated factors among clients of primary care and religious care centers in Thailand.

Methods:

In a cross-sectional interview survey, 1214 consecutively sampled adult clients from three religious and three primary care centers participated in the study in 2018–2019. They completed information on suicidal ideation, social and demographic factors, chronic conditions, and mental and substance use disorders. Logistic regression was used to assess predictors of suicidal ideation.

Results:

One in ten clients (10.0%) reported suicidal ideation. The prevalence of suicidal ideation was higher in clients attending religious compared to primary care, but the difference was not significant. In adjusted logistic regression analysis, depressive disorder (adjusted odds ratio [AOR]: 3.49, 3.49, 95% confidence interval [CI]: 1.86–6.56), anxiety disorder (AOR: 6.03, 95% CI: 2.82–12.95), somatization disorder (AOR: 2.03, 95% CI: 1.17–3.53), cancer (AOR: 2.56, 95% CI: 1.02–6.50), and sore joints (AOR: 2.24: 95% CI: 1.16–4.31) were positive associated with suicidal ideation, while secondary education (AOR: 0.39, 95% CI: 0.20–0.77), employed (AOR: 0.52, 95% CI: 0.32–0.85), and high social support (AOR: 0.28, 95% CI: 0.13–0.56) were negatively associated with suicidal ideation.

Conclusion:

The prevalence of suicidal ideation was higher in clients attending religious care compared to primary care, but the difference was not significant. Factors associated with suicidal ideation include sociodemographic factors, mental disorders, and chronic conditions.
Knowledge, Attitude, and Belief of Health-care Workers Toward COVID-19 Vaccine at a Tertiary Care Center in India
Authors: Kotecha Ilesh S. , Vasavada Disha Alkeshbhai , Kumar Parveen , Nerli Lubna Mohammed Rafik , Tiwari Deepak Sachidanand , Parmar Dipesh V.
Published: May 2022

Introduction:

India approved the “Covishield” vaccine for emergency use and began the first vaccination drive from January 16, 2021. As the new coronavirus disease-2019 (COVID-19) vaccine was developed within a short period, public acceptance for this new vaccine remains uncertain. Vaccine hesitancy remains an important challenge in the immunization against COVID-19. The aim of the current study was to assess different hesitancies, attitude, and beliefs about COVID-19 vaccine among health-care workers.

Methods:

A cross-sectional study was carried out among health-care professionals from 5th to January 15, just before the commencement of the first vaccination drive. All the participants were requested to fill out semi-structured pro forma containing following sections: (1) demographic details and (2) attitude and belief questionnaire. Following this, a lecture of around 45–60 min was conducted by trained professionals comprising of an education module. After the educational session, participants' willingness to take the vaccine was reassessed.

Results:

Totally, 598 participants participated in the study. Of these, 47% participants were not willing to take the vaccine. Participants with age <35 years, experience <5 years, and working in rural areas have statistically significant unwillingness to take vaccine, on Chi-square test. Getting sick from vaccine, contracting the disease after vaccination, fear of adverse effect, uncertain efficacy, and death due to vaccine are concerns related to vaccination hesitancy. After the educational session, 82% of the participants were willing to take the vaccine.

Conclusion:

Inadequate knowledge about vaccine contributed significantly to denial for vaccination. Educational program was effective in addressing the concerns of participants about vaccination, improving vaccine usage and hence control of the COVID-19 pandemic.
О выпуклом многограннике в правильной системе точек
Authors: Shtogrin Mikhail Ivanovich
Published: May 2022

Огранка с "начинкой". Идеальная кристаллическая структура состоит из конечного числа равных и параллельных трансляционных точечных решеток. В $\mathbb R^3$ она простирается неограниченно во всех направлениях. Выделим в ней конечную часть, расположенную в замкнутом выпуклом многограннике, каждая грань которого содержит не принадлежащие одной прямой узлы трансляционной точечной решетки, входящей в структуру. Такой многогранник называют возможной огранкой идеальной кристаллической структуры.
Широко известны 32 кристаллических класса, или 32 кристаллографические точечные группы. Среди них находится группа симметрии возможной огранки, вычисленная с учетом принадлежащих ей узлов идеальной кристаллической структуры. Циклическая подгруппа $C_n$ группы симметрии любой возможной огранки имеет порядок $n\le 4$ или $n=6$.
Огранка без "начинки". В настоящей работе построены две кристаллические структуры, в каждой из которых имеется такой кристаллический многогранник, группа симметрии которого, вычисленная без учета принадлежащих ему узлов кристаллической структуры, обладает поворотной осью порядка $n=8$ или $n=12$ соответственно. В обоих случаях кристаллический многогранник является прямой призмой конечной высоты. Без учета внутреннего строения возможная огранка кристаллической структуры в трехмерном евклидовом пространстве не может обладать поворотной осью другого порядка $n$ при условии $6<n<\infty$.
Предлагаемые построения сопровождаются подробными исследованиями идеальных кристаллических структур, а также множеств Делоне $S$ типа $(r, R)$ в $\mathbb R^2$ и $\mathbb R^3$. В частности, предъявлено развернутое доказательство одной из теорем, сформулированной в 2010 г. на Международной конференции, посвященной 120-летию со дня рождения Б. Н. Делоне.
Библиография: 31 наименование.
Urine 1H-NMR Metabolomics to Discriminate Neurocysticercosis Patients from Healthy Controls: An Exploratory Study
Authors: Lopez Juan M. , Leyva Vanessa E. , Bustos Javier A. , Perez Erika , Sanchez Sofía S. , Saavedra Herbert , Gonzales Isidro , Maruenda Helena , Garcia Hector H. , _ _
Published: May 2022

The diagnosis of neurocysticercosis (NCC) is principally based on neuroimaging (magnetic resonance imaging or computed tomography), instrumentation that is scarcely available in the rural regions where Taenia solium transmission, primarily occurs due to poor sanitation conditions. Immunological assays for antigen or antibody detection complement the neuroimaging approach. However, no field-applicable assays to diagnose viable NCC or to guide the referral of cases for neuroimaging or for appropriate management are available. We performed an exploratory study on urine and serum samples using 1H-nuclear magnetic resonance (NMR)-based metabolomics to discriminate NCC patients (n = 14) from healthy control subjects (n = 22). Metabolic profiles demonstrated a discrimination between the urines of NCC patients and noninfected control subjects with a moderate predictive accuracy (R2 = 0.999, Q2 = 0.434). NMR metabolomics analysis has been proven useful in depicting biomarkers linked to other infectious diseases, various types of cancer, and other disorders. Our results, albeit preliminary, open a door to the development of better methods for detecting NCC through the identification of biomarkers participating in disturbed metabolic pathways.
Recommended Practice for Filter Weighing of Particulate Matter Emissions
Authors:   Emissions Standards Committee
Published: May 2022

This document describes particulate filter weigh-room recommended practices to provide guidance in the procedures and processes associated with gravimetric filter weighing of engine or vehicle particulate matter (PM) emissions. This recommended practice provides proper procedures to build and maintain a particulate filter weigh room or enclosure to meet the requirements of EPA's 40 CFR Part 1065 and ISO 14065 for obtaining low measurement uncertainty. The content of this recommended practice addresses the following areas:

a

Particulate Filter Weigh Room

b

Microbalance Requirements

c

Filter Conditioning and Handling Requirements

d

Weighing Process

e

Equipment Calibration and Maintenance
Aplicativos e smartphones para mensuração da altura de árvores em plantio florestal
Authors: Curto Rafaella De Angeli , Pinto Mônica Ferreira , Wink Charlote , Araújo Emanuel José Gomes de , Kohler Sintia Valerio
Published: May 2022

O presente trabalho teve como objetivo avaliar a exatidão de aplicativos, smartphones e mensuradores, na inferência da altura total em um plantio florestal. Foram selecionadas, aleatoriamente, 30 árvores em um plantio de Tectona grandis, sendo elas mensuradas por três aplicativos (Measure height, Two point height e Hypsometer), três smartphones (Samsung Galaxy S8, S6 e J7) e por três mensuradores. Posteriormente, as árvores foram abatidas, sendo obtidas suas alturas reais com auxílio de uma trena. Para avaliar a precisão, foi realizado teste t para amostras independentes, após verificação de homogeneidade de variâncias pelo teste de Bartlett e normalidade pelo teste de Shapiro-Wilk, todos a 95% de confiança. Adicionalmente, foi realizada análise gráfica de resíduos, bem como estatísticas complementares (viés, média das diferenças absolutas, desvio padrão das diferenças e raiz do erro quadrático médio). Conclui-se que, dependendo do aplicativo utilizado, há smartphones que não são indicados para mensuração de altura. O aplicativo de melhor desempenho foi o Hypsometer. E o smartphone Galaxy S6 apresentou melhor estimativa, preferencialmente para o aplicativo Two point height. A experiência do mensurador confirma-se como requisito fundamental na estimativa da altura, utilizando aplicativos e smartphones.
Second-order conditions for non-uniformly convex integrands: quadratic growth in $L^1$
Authors: Wachsmuth Daniel , Wachsmuth Gerd
Published: May 2022

We study no-gap second-order optimality conditions for a non-uniformly convex
and non-smooth integral functional. The integral functional is extended to the
space of measures. The obtained second-order derivatives contain integrals on
lower-dimensional manifolds. The proofs utilize the convex pre-conjugate, which
is an integral functional on the space of continuous functions. Applications to
non-smooth optimal control problems are given.
Pengaruh Pengajaran Pendidikan Agama Kristen melalui Ibadah Online terhadap Pembentukan Karakter Remaja Pemuda
Authors: Widiyanto Mikha Agus
Published: May 2022

Teaching given in a worship as a part of Christian Religious Education duty which plays an important role in adolescent and youth character building. In COVID-19 pandemic, worship is being an affected aspect, so that it is held online. Christian Religious Education teaching delivered through online will affect adolescent and youth worship intensity. When online service considered as less attractive, it will affect their solemnity in involvement of the worship and the character formation. This research aimed to study the influence Christian Religious Education teaching through online service to adolescent and youth character building. Method used was survey. The result showed that is a significant influence of the Christian Religious Education teaching to the adolescent and youth character building. The teaching given attractively and suitable to the adolescent and youth needs in online service will make Christian Religious Education teaching effective, so that they can implement it in daily life indicated by character changes to be like Christ.
Perinatal stroke: modelling and the potential of neurovisualization
Authors: Lizunova Natalia V. , Kislukhina Evgeniia N. , Surin Alexander M.
Published: May 2022

Perinatal stroke (PS), characterized by sudden disappearance or impairment of brain functions, is a socially significant form of pathology that leads to the death and/or disability of children. Depending on the extent of the lesion, the severity of the consequences of a PS varies from a slight lag in learning to lifelong disability and inability to independently take care of yourself. The most common complications are cerebral palsy and epilepsy. Since the possibilities of diagnosis and therapy in the acute period are extremely limited, the efforts of health care providers and scientists are aimed at improving approaches to the rehabilitation of such patients. The authors presented an overview of modern methods of modelling PS in various experimental conditions. It is established that the modelling of PS is continuously being improved, new ways of forming ischemic brain damage are being created, each of which is necessary for the development of new scientific criteria for its early diagnosis and prediction of outcomes in standardized conditions. It is shown that a special place in the diagnosis of ischemic brain damage is occupied by wide-field optical visualization, which allows determining the formation of neural networks and functional maps of the cortex of the developing brain, provides an opportunity to analyze the spatiotemporal activity of neurons in large areas of the cerebral cortex and the processes of restoring cortical functions in the post-traumatic period. With the advent of genetically encoded ion sensor proteins and technologies for obtaining transgenic animal lines that specifically express sensors directly in neurons, opportunities have been created for optical registration of neural activity by analyzing changes in spontaneous activity of calcium signals and other mechanisms, which allows us to study brain neuroplasticity at a new level and create new ways to correct ischemic brain damage.
TRIBOLOGICAL BEHAVIOR OF ALUMINUM COMPOSITES USING TAGUCHI DESIGN AND ANN
Authors:   University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia, Stojanović Blaža , Tomović Radoslav ,   University of Montenegro, Faculty of Mechanical Engineering, Podgorica, Montenegro, Gajević Sandra ,   University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia, Petrović Jelena ,   University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia, Miladinović Slavica ,   University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia
Published: May 2022

In this paper is presented the tribological behavior of A356-based aluminum composites using Taguchi design. Testing of tribological characteristics of aluminum composites was done on a tribometer with block on disc contact geometry. Composite materials were obtained by compocasting. The orthogonal matrix L18 is used to form the experimental design using the Taguchi method. The tribological characteristics of the aluminum composite reinforced with SiC (A356/10 wt.% SiC) were compared to the base material A356 for three sliding speeds (0.25 m/s; 0.5 m/s and 1.0 m/s), three values of normal load (10 N, 20 N and 30 N) and sliding distance of 150 m under lubrication conditions. ANOVA analysis showed that the least wear has a composite material at a load of 10 N and at sliding speed of 0.25 m/s.
Evaluation of the wear and corrosion resistance of coated parallel gate valve
Authors:   Petroleum-Gas University of Ploiești, Ploiești, Romania, Ri Jong Hyok , Ripeanu Razvan George ,   Petroleum-Gas University of Ploiești, Ploiești, Romania
Published: May 2022

This paper aims to experimentally evaluate the wear and corrosion resistance of the coated active parts surfaces of a cut off valve. This paper presents the electrochemical corrosion, hardness and wear tests of the gate valve coated surfaces with a plastic material, in order to evaluate the seat and gate valve couple behaviour in an aggressive medium containing crude oil with sand particles. Uncoated and coated surfaces were compared and evaluated by the coefficient of friction, wear rates and corrosion resistance. A comparison process between the previous results of the CFD analysis for erosion wear and the test results, at the covered gate valve, is also presented. Keywords: gate valve, solid lubricant, coefficient of friction, corrosion resistance, wear resistance.
Wear and friction characterisation of some restorative dental materials
Authors:   Instituto Politécnico Nacional, SEPI-ESIME, UZ, Mexico City, Mexico, Martínez-Cruz Florencio S. , Vite-Torres Manuel ,   Instituto Politécnico Nacional, SEPI-ESIME, UZ, Mexico City, Mexico, Moran-Reyes Alejandra ,   Universidad Nacional Autónoma de México, Facultad de Odontología, Mexico City, Mexico, Bravo-Mejía Jorge A. ,   ISAAC Dental Laboratory, Mexico City, Mexico
Published: May 2022

Dental wear is a complex field of tribology study, due to the combination of wear mechanisms, such as attrition, abrasion, erosion, and abfraction. The aim of the work was the study the wear in dental restorative materials, using a reciprocate tester in order to simulate the attrition in the oral cavity. This phenomenon occurs when sliding tooth against tooth, which generates considerable wear in the area of dental occlusion in the closed phase of mastication, and in the presence of parafunction such as bruxism. The experiments were performed employing ceramic (Ceramco 3), dental silver and, composite (Filtek Z350 XT) as restorative materials and nickel-chrome alloy as counter-body, using a reciprocating tribometer manufactured according to some parameters of standard ASTM G133-05. The geometrical configuration was a sphere on a flat plane. The experimental results obtained were volume loss and coefficient of friction of the different dental restorative materials. Also, wear mechanisms like plastic deformation, cracks, and delamination between others could be identified. Keywords: dental wear, attrition, dental restorative material, reciprocating movement, wear mechanisms.
Reflection on E-Learning and Adaptability in the Teaching and Learning of French as Foreign Language
Authors:   A research team in educational science, language didactics, human and social sciences, Faculty of Letters and Human Sciences, Abdel Malek Essaadi University Morocco., Mohammed Zine El Abidine
Published: May 2022

The teaching of French in Morocco has seen better days. "A progressive and almost generalized decline in the level of French throughout the Moroccan school curriculum is certainly not original" [1]. The secondary cycle is one of them. Today, it encounters several difficulties that cannot be neglected. This is due to the learning methods or approaches as well as the programs imposed by the institutions and which do not take into consideration the expectations of the actors involved in the educational act especially with the integration of literary works. The learner, with a mostly low level, due to the accumulation of different factors, is disoriented, demotivated and gradually detaches himself from the learning of this language. In this light, we must look for other approaches and pedagogical methods to improve the quality of teaching/learning of French at the qualifying secondary level through the use of ICT and the adaptation of training which constitutes a new challenge in the field.
Status and use of water supply and sewerage systems in the Northern Development Region of the Republic of Moldova
Authors:   Institute of Ecology and Geography, Chisinau, 1 Academiei Street, MD-2028, Republic of Moldova, Bacal Petru , Jeleapov Ana ,   Institute of Ecology and Geography, Chisinau, 1 Academiei Street, MD-2028, Republic of Moldova, Burduja Daniela ,   Institute of Ecology and Geography, Chisinau, 1 Academiei Street, MD-2028, Republic of Moldova
Published: May 2022

Water is an important resources for evolution and development of the economy of the North Development Region of the Republic of Moldova. From its availability and facilities to supply depend over 909 ths. inhabitants or 25% of the country population. The most important water resources are surface water that are represented mainly by the Dniester and the Prut rivers situated at the borders of the pilot region as well as groundwater. Internal rivers are characterized by low flow and do not represent significant resources. Surface water resources lead to decrease for the last decades due to different factors including reservoirs impact as well as climate change. Development of water supply and especially water sewerage system is an important factor in order to assure people and industries with water and qualitative life. In this regard, plus to evaluation of water resources dynamics, the aim of the present research is regional and local assessment of the state and use of public water supply and sanitation systems in the mentioned region for the last decade (2010-2020). Thus, total volume of abstracted water for public water supply systems was, on average, 18.8 mil. m³. For the study period, the total volume of water delivered to the population increased by 1.8 times (4.1 mil. m3), including in rural areas by 4.5 times (by 2.6 mil. m³), and in urban areas, by only 35 % (1.6 mil. m³). As a result of the expansion of the aqueduct network, ≈½ (48%) of the population of region has access to public water supply systems, including 83% in urban areas and only 31% in rural areas. Despite the rapid expansion of public aqueducts, water consumption per capita is low and is only 71 l/day, including 84 l/ day in urban areas and only 53 l/day in rural areas. Population access to the public sewerage systems is only 19%, including 55% in the urban areas and only 0.3% − in the rural areas. Slow expansion of the public sewerage systems is caused by higher costs compared to water supply systems, and most local public authorities do not consider them as a priority.
Hirudotherapy and Scientific Arguments Substantiation of Pathogenetic Treatment of POST-COVID Syndrome
Authors:   Hirudotherapy Academy, St. -Petersburg, Russia, Krashenyuk A.I.
Published: May 2022

It’s been 25 months since the pandemic began in Wuhan, China. The number of cases worldwide has exceeded 520,053,960. 6,269,516 people died. These are WHO data as of 08.05.2022. In the list of countries with the most affected population of coronavirus, the United States ranks first (1,018,316 people died). Russia ranks 4th (374,902 people died). Over the past time, the world medical community has much better understood the essence of the pathogenesis of the new COVID-19 virus. Based on many years of research on the properties of leeches (hirudotherapy), treatment and rehabilitation of patients and those who have had the disease COVID-19 coronavirus are proposed.
Kaedah Fuzzy Delphi: Reka Bentuk Pembangunan Model Pedagogi Terbeza Berasaskan Elemen Proses Pengajaran Dalam Mata Pelajaran Tilawah Al-Quran
Authors: Mustaffa Zurina , Hussin Zaharah , Sulaiman Abdul Muhsien
Published: May 2022

Kajian ini bertujuan untuk mendapatkan konsensus pakar terhadap keperluan elemen utama dan turutan kedudukan (ranking) keutamaan bagi setiap item dalam reka bentuk pembangunan Model Pedagogi Terbeza berasaskan elemen proses pengajaran bagi mata pelajaran tilawah al-Quran. Dalam kajian ini, kaedah Fuzzy Delphi digunakan dengan menggunakan tujuh skala likert. Kajian ini dijalankan dengan tujuan untuk mereka bentuk Model Pedagogi Terbeza berasaskan elemen proses pengajaran dan pembelajaran dalam mata pelajaran tilawah al-Quran mengikut konsensus pakar. Oleh itu, pengkaji mendapatkan konsensus pakar seramai 16 orang pakar dari pelbagai bidang terutamanya bidang pedagogi dan tilawah al-Quran. Borang soal selidik kajian mengandungi 39 item yang melibatkan lima elemen utama iaitu (i) pengetahuan pedagogi kandungan, (ii) perancangan guru berasaskan Teori Kecerdasan Pelbagai dengan, (iii) keadilan kepada murid, (iv) pelaksanaan kaedah pengajaran dan (v) amalan guru dalam mengubah suai proses pengajaran dan pembelajaran. Data dianalisis dengan menggunakan penomboran segi tiga Fuzzy. Kedudukan (ranking) setiap item ditentukan dengan menggunakan Defuzzification Process. Dapatan kajian menunjukkan konsensus pakar terhadap semua item dalam elemen utama. Dapatan menunjukkan kesemua item diterima dan melepasi tiga syarat Fuzzy iaitu nilai threshold (d) tidak melebihi atau sama dengan 0.2, peratus kesepakatan pakar melebihi atau sama dengan 75% dan nilai Defuzzification (alpha cut) melebihi atau sama dengan 0.5. Model Pedagogi Terbeza berasaskan elemen proses pengajaran di harap dapat memberi idea baharu kepada sektor pendidikan khususnya guru Pendidikan Islam dalam mempelbagaikan metodologi pengajaran kepada murid yang pelbagai.
Perbedaan Kemampuan Berpikir Kreatif dan Kemampuan Pemahaman Konsep Matematika Siswa dengan Strategi Pembelajaran Kooperatif Tipe Co Op Co Op dan Teams Games Tournament (TGT)
Authors: Nisa Chairun , Amalia Fitri
Published: May 2022

Abstrak

Tujuan penelitian ini yaitu untuk mengetahui:1)Kemampuan berpikir kreatif siswa yang diajar dengan strategi pembelajaran kooperatif tipe Co Op Co Op dan kooperatif tipe Team Game Tournament (TGT) 2)Kemampuan pemahaman konsep matematika siswa yang diajar dengan strategi pembelajaran kooperatif tipe Co Op Co Op dan kooperatif tipe Team Game Tournament (TGT) 3)Interaksi antara strategi pembelajaran dengan kemampuan matematika siswa. Penelitian ini merupakan penelitian kuantitatif dengan jenis quasi eksperimen. Sampel penelitian ini adalah 60 siswa kelas VII MTs Negeri Lubuk Pakam. Data dianalisis dengan Analisis Varian (ANAVA). Hasil temuan ini menunjukkan: 1)Kemampuan berpikir kreatif siswa yang diajar dengan strategi pembelajaran kooperatif tipe Co Op Co Op tidak lebih baik daripada siswa yang diajar dengan strategi pembelajaran kooperatif tipe Team Game Tournament (TGT) 2)Kemampuan pemahaman konsep matematika siswa yang diajar dengan strategi pembelajaran kooperatif tipe Co Op Co Op lebih baik daripada siswa yang diajar dengan strategi pembelajaran kooperatif tipe Team Game Tournament (TGT) 3) adanya interaksi yang signifikan antara strategi pembelajaran dengan kemampuan berpikir kreatif dan kemampuan pemahaman konsep matematika siswa.

Kata Kunci: berpikir kreatif, pemahaman konsep matematika, strategi kooperatif tipe Co Op Co Op, strategi kooperatif tipe TGT

 

Abstract

The purpose of this study is to find out: 1)Creative thinking ability of students who are taught with Co op Co op type cooperative learning strategy and team game tournament type cooperative (TGT) 2)Ability to understand the mathematical concept of students taught with Co op Co op type cooperative learning strategy and cooperative type Team Game Tournament (TGT) 3)Interaction between learning strategy and student math ability. This research is quantitative research with quasi-experimental type. The sample of this study was 60 students of grade VII MTs Lubuk Pakam. The data is analyzed with Variant Analysis (ANAVA). The findings show that: 1)The creative thinking ability of students taught with Co Op Co Op type cooperative learning strategy is no better than students taught with Team Game Tournament (TGT) type cooperative learning strategy 2) The ability to understand the mathematical concepts of students who are taught with Co op Co op type cooperative learning strategies is better than students who are taught with team game tournament (TGT) type cooperative learning strategy 3) there is a significant interaction between learning strategy with creative thinking ability and student math concept understanding ability.

Keywords: creative thinking, understanding mathematical concepts, Co op Co op type cooperative strategy, TGT type cooperative strategy
Quality of Life and Emotional State in Patients with Arterial Hypertension
Authors: Palaitytė Paulė , Mikaliūkštienė Aldona
Published: May 2022

An increasing number of patients with arterial hypertension are observed. The symptoms of arterial hypertension harm physical and mental health, causing discomfort that impairs quality of life and disrupts normal and stable life. Studies show that the emotional health of patients is deteriorating as a result of the disease, anxiety and depression are on the rise. The study aimed to analyze the scientific literature on the quality of life and emotional state of patients with arterial hypertension.

Research Methods – a Systematic Review of the Literature Articles published in the PubMed, ClinicalKey, Google Scholar, and EBSCO databases on Quality of Life and Emotional State in Patients with Arterial Hypertension. The results show that patients with arterial hypertension are at risk of depression or anxiety disorders, which worsen their emotional state and quality of life.
TÜRKİYE VE KAZAKİSTAN’DAKİ ÖĞRETMEN ADAYLARININ KÜLTÜREL VE BEŞERİ SERMAYE ÖZELLİKLERİNE İLİŞKİN BİR İNCELENME
Authors: BAHAR Hüseyin Hüsnü , ABDRAMANOVA Nursulu
Published: May 2022

Araştırmanın amacı Kazakistan ve Türkiye’de öğretmen yetiştirme lisans programlarına kayıtlı olan ve bu çalışmaya katılmayı kabul eden öğretmen adaylarının kültürel ve beşerî sermaye özelliklerini incelemek ve karşılaştırmaktır. Öğretmen adaylarının kültürel ve beşerî sermaye özellikleri kapsamında ebeveyn öğrenim durumu, kardeş sayısı, aile ikamet yeri, ders ve ödevlerinde kullanabileceği bilgisayarının olup olmaması ve aile ekonomik durumları ele alınmıştır. Veriler Kazakistan’dan 227, Türkiye’den 281 olmak üzere toplam 508 gönüllü öğretmen adayından elde edilmiştir. Çalışma grubunun temsil kabiliyetinin yetersiz olması sebebiyle, mevcut çalışmadan elde edilen sonuçlar bu çalışma grubu ile sınırlıdır. Veri toplama aracı olarak anket formu kullanılmıştır. Verilerin çözümlenmesi için çapraz tablolar oluşturulmuş ve ki kare analizleri yapılmıştır. Bu çalışmada, Kazakistan grubundaki öğretmen adaylarının ebeveyn öğrenim seviyesi Türkiye grubundakilerden daha yüksek bulunmuştur. Üç veya daha az kardeşi olanların oranı Türkiye grubunda, beş ve altı kardeşi olanların oranı Kazakistan grubunda daha yüksektir. Kazakistan grubunda ailesi kırsal yerleşim yerlerinde ikamet edenlerin oranı Türkiye grubundan daha yüksek bulunmuştur. Türkiye grubunda ise kentsel yerleşim yerlerinde ikamet edenlerin oranı daha yüksektir. Kazakistan grubundaki öğrencilerin ders ve ödevleri için kullanabileceği bilgisayara sahip olma oranı Türkiye grubundakilerden daha yüksek bulunmuştur. Kazakistan grubunda 52, Türkiye grubunda 114 öğrencinin bilgisayar imkânı bulunmadığı tespit edilmiştir. Bu çalışmaya katılan Kazakistan grubundaki öğrencilerin aile ekonomik durumunun Türkiye grubundakilerden daha olumlu olduğu görülmüştür. Elde edilen bulgulara dayalı olarak bazı önerilerde bulunulmuştur.
The Yield and Market Function Effects of the Reserve Bank of Australia's Bond Purchases
Authors:   Reserve Bank of Australia, Finlay Richard , Titkov Dmitry ,   Reserve Bank of Australia, Xiang Michelle ,   Reserve Bank of Australia
Published: May 2022

We examine the effect on government bond yields of three Reserve Bank of Australia policy measures implemented following the onset of the COVID-19 pandemic. We also assess the impact of the three measures on government bond market functioning. The three measures were: purchases to support government bond market function over early 2020; the yield target on 3-year Australian government bonds; and the bond purchase program to lower longer-term yields from late 2020 until early 2022. For purchases to support market function, we find that the announcement lowered short-dated Australian Government Securities (AGS) yields, but did not lower longer-dated AGS yields. We also find that such purchases led to lower yields as and when they were implemented, and that they supported market function by lowering bid-offer spreads. For the yield target, we find a substantial announcement effect and moderate implementation effects on yields. Conversely, the yield target appears to have detrimentally affected some aspects of government bond market function. For the bond purchase program, we find an announcement effect of around 30 basis points for longer-term AGS yields, while any implementation effects were small and temporary.