bluuebunny/crossref_metadata_2025 huggingface dataset:
Ineransi Alkitab sebagai Dasar Kurikulum Pendididikan Kristen
Authors: Budiyana Hardi
Published: March 2021

Inerrancy means the Bible is infallible. Because the Bible was revealed by God the Holy Spirit Himself. Even though the researcher is a sinner; however, the initiator is a God who cannot do wrong. The Holy Spirit uses all the individual potentials (shortcomings and strengths) of the Bible writers and is completely under the leadership and control of the Holy Spirit, so that what the authors of the books of the Bible write do not come from the author, but from God concerning the Word of God himself. A Christian can accept this inerrant biblical quality, so he must also accept other biblical qualities. This study uses a descriptive qualitative method regarding the Christian education curriculum that must be based on the inerrancy of the Bible. Biblical inerrancy emphasizes that the Bible is the Word of God, the Bible was written without errors because the idea of writing came from God. The curriculum is structured based on the inerrancy of the Bible with the aim of Christian education so that learners know God's work of salvation in and through the Lord Jesus alone, so that they believe that Jesus is God, so that those who believe have eternal life and their lives are changed by the Holy Spirit through the power of the Bible. The power of the Bible is because the Bible is the Word of God. Nothing can survive under the sovereignty of God's written Word, which is the Bible. Therefore, the Christian religious education curriculum is built based on the Bible in order to achieve its goals.Ineransi berarti Alkitab tidak mungkin salah. Karena Alkitab diwahyukan oleh Allah Roh Kudus sendiri. Walau penelitinya adalah orang berdosa; namun, inisiatornya adalah Allah yang tidak mungkin berbuat salah. Roh Kudus menggunakan semua potensi individual (kekurangan dan kelebihan) penulis Alkitab dan secara utuh berada dalam pimpinan dan kontrol Roh Kudus, sehingga yang ditulis oleh penulis kitab dalam Alkitab bukanlah berasal dari penulis, melainkan dari Allah mengenai Firman Allah sendiri. Orang Kristen dapat menerima sifat Alkitab yang ineransi ini, maka ia pasti juga menerima sifat-sifat Alkitab yang lain. Penelitian ini menggunakan metode kualitatif deskriptif mengenai kurikulum pendidikan  Kristen harus didasarkan pada ineransi Alkitab.  Ineransi Alkitab menekankan Alkitab adalah Firman Tuhan, Alkitab ditulis tanpa ada kesalahan karena ide dari tulisan berasal dari Allah. Kurikulum disusun berdasar pada ineransi Alkitab dengan tujuan Pendidikan Kristen agar pembelajar mengenal karya keselamatan Allah di dalam dan melalui Tuhan Yesus saja, supaya percaya bahwa Yesuslah Allah, sehingga yang percaya beroleh hidup yang kekal dan hidupnya diubah oleh Roh Kudus melalui kuasa Alkitab. Kuasa Alkitab adalah karena Alkitab adalah Firman Allah. Tidak ada yang dapat bertahan di bawah kedaulatan Firman Tuhan yang tertulis, yaitu Alkitab. Karena itu kurikulum pendidikan Agama Kristen dibangun berdasarkan Alkitab agar mencapai tujuan.
Sagittarius B1: A Patchwork of H ii Regions and Photodissociation Regions
Authors: Simpson Janet P. , Colgan Sean W. J. , Cotera Angela S. , Kaufman Michael J. , Stolovy Susan R.
Published: March 2021

Sgr B1 is a luminous H ii region in the Galactic center immediately next to the massive star-forming giant molecular cloud Sgr B2 and apparently connected to it from their similar radial velocities. In 2018 we showed from SOFIA FIFI-LS observations of the [O iii] 52 and 88 μm lines that there is no central exciting star cluster and that the ionizing stars must be widely spread throughout the region. Here we present SOFIA FIFI-LS observations of the [O i] 146 and [C ii] 158 μm lines formed in the surrounding photodissociation regions (PDRs). We find that these lines correlate neither with each other nor with the [O iii] lines although together they correlate better with the 70 μm Herschel PACS images from Hi-GAL. We infer from this that Sgr B1 consists of a number of smaller H ii regions plus their associated PDRs, some seen face-on and the others seen more or less edge-on. We used the PDR Toolbox to estimate densities and the far-ultraviolet intensities exciting the PDRs. Using models computed with Cloudy, we demonstrate possible appearances of edge-on PDRs and show that the density difference between the PDR densities and the electron densities estimated from the [O iii] line ratios is incompatible with pressure equilibrium unless there is a substantial pressure contribution from either turbulence or magnetic field or both. We also conclude that the hot stars exciting Sgr B1 are widely spaced throughout the region at substantial distances from the gas with no evidence of current massive star formation.
Begonia shenzhenensis, a new species of Begoniaceae from Guangdong of China
Authors: Tian Dai-Ke , Chen Bin , Xiao Yan , Zheng Min-Min , Ge Bin-Jie
Published: March 2021

Begonia shenzhenensis D.K.Tian & Xiao-Yun Wang sp. nov., a new species in Begonia sect. Platycentrum of Begoniaceae from Shenzhen of Guangdong province, China, is described. Morphologically, it is mostly similar to Begonia coelocentroides in the same section, but clearly differs by its denser hairs on leaf, petiole and pedicel, abtuse anther apex, hairy ovary and narrower adaxial fruit wing. Based on only one small population ever found so far, its conservation status is assigned to Critical Endangered according to the IUCN Red List Categories and Criteria.
A preliminary world checklist of fern-mining insects
Authors: Yang Jie , Wang Xuexiong , Duffy Kevin , Dai Xiaohua
Published: March 2021

Compared to the leaf-miners and stem-miners on flowering plants, the miners on ferns (including both Lycopodiophyta and Polypodiophyta in the broad sense) are less known. Knowledge of miners and their host plants is essential to fully understand plant-insect interactions. Although there are many scattered records on fern miners, a worldwide checklist has not been reported.

We provide a preliminary checklist of fern-mining insects and their host plants worldwide. Altogether, we found records for 128 species and 18 families of fern miners, mainly that feed on Dennstaedtiaceae, Equisetaceae, Polypodiaceae and Aspleniaceae. Fern miners belonged to four orders: Diptera (51 species; 39.8%), Coleoptera (33 species; 25.8%), Lepidoptera (28 species; 21.9%) and Hymenoptera (16 species; 12.5%). They are primarily known from the Palaearctic Region, Nearctic Region, Neotropical Region and Oriental Region.
A new species of day gecko (Reptilia, Gekkonidae, Cnemaspis Strauch, 1887) from Sri Lanka with an updated ND2 gene phylogeny of Sri Lankan and Indian species
Authors: Karunarathna Suranjan , De Silva Anslem , Gabadage Dinesh , Botejue Madhava , Madawala Majintha , Ukuwela Kanishka D.B.
Published: March 2021

A new day gecko of the genus Cnemaspis Strauch, 1887 is described from the intermediate bioclimatic zone (Haputale Forest and Idalgashinna Forest in Badulla District) of Sri Lanka. The new species belongs to the Cnemaspis kandiana clade and was recorded from granite caves and abandoned buildings within forested areas. The region in which these habitats are located, receives relatively high annual rainfall (2500–3500 mm) and has fairly cool, moist and well-shaded conditions. The new species is medium in size (30.2–32.9 mm SVL) and can be differentiated from all other Sri Lankan Cnemaspis by the presence of small subcaudals, heterogenous dorsal scales, smooth pectoral and ventral scales, 7 or 8 supralabials and infralabials, 143–159 ventral scales, 15–17 belly scales, 95–103 mid-body scales, 122–132 paravertebrals, 3 pre-anal pores, 4 or 5 femoral pores and 17 or 18 lamellae on 4th toe. The species described herein is categorised as Critically Endangered (CR) under the IUCN Red List Criteria. The major threats for the new species are habitat loss due to expansion of commercial-scale agriculture and illicit forest encroachments. Therefore, we recommend relevant authorities to take immediate conservation action to ensure the protection of these forest areas in Haputale and Idalgashinna along with the buffer zone in the near future.
Textes programmateurs et scénarisations interactionnelles : les instructions autour de la natation en piscine et en extérieur du point de vue de l’énaction, perspective contrastive
Authors: Bottineau Didier
Published: March 2021

En piscine municipale ou privée (villages vacances), les règles de baignade sont programmées par des documents ordonnateurs (règlements) et mises en application par des documents régulateurs (instructions, recommandations, interdictions) en prise directe avec l’action des visiteurs dans les locaux. Sur un ensemble de documents dans cinq langues (français, anglais, allemand, espagnol, italien), on étudie l’expression de ces instructions, distinguant des constantes propres aux genres textuels et les divergences entre langues liées aux systèmes linguistiques et aux pratiques et environnements culturels, avec référence à l’énaction langagière (la parole dans les langues comme systèmes évolutionnaires de pratiques interactives incarnées constituant et modifiant la réalité en tant que domaine d’action et de connaissance produit et vécu par une communauté régulée d’agents autonomes vivants).
Séquences de guidage dans des sessions de jeux vidéo : comment co-construire la programmation d’une action dans l’interaction ?
Authors: Baldauf-Quilliatre Heike , Colón De Carvajal Isabel
Published: March 2021

L’article étudie des séquences de guidage dans des interactions en situation de jeu vidéo : il propose ainsi une analyse de la programmation d’une action comme pratique interactive, séquentielle et multimodale. Sur la base d’enregistrements vidéo d’interactions naturelles, non élicitées lors de différents types de jeu, nous explorons les séquences de guidage comme une des activités par lesquelles les joueurs ou spectateurs montrent leur engagement, se positionnent dans le jeu et guident les joueurs en cours. Différentes séquences interactionnelles de ces guidages sont observées : NOW-instructions , propositions, explications, encouragements et évaluations. Nous mettons en avant l’importance de la co-construction du discours programmateur et nous proposons son ancrage dans une approche interactionnelle et multimodale en nous appuyant sur toutes les ressources interactionnelles disponibles.
Expositions différenciées et résistances sanitaires : les premiers mois d’épidémie dans les entrepôts logistiques
Authors: Benvegnù Carlotta , Gaborieau David , Rivoal Haude , Tranchant Lucas
Published: March 2021

L’impact inégal de la pandémie en fonction des groupes sociaux, tout particulièrement la manière dont la maladie a interagi avec les inégalités de genre, de race ou de classe, les modes de vie et de logement, les conditions d’accès au soin, commence à être discuté ; son impact différencié sur les lieux de travail demeure moins exploré. Ceci est particulièrement le cas du secteur du transport et de la logistique, lequel a pourtant été rendu visiblement essentiel par le confinement. Les membres du GEL ont tenté de remédier à cette carence et nous livrent les résultats de leur enquête par temps de Covid.
Pragmatism, Truth, and Democracy
Authors: Misak Cheryl , Talisse Robert B.
Published: March 2021

Il y a un intérêt croissant pour la démocratie délibérative, en particulier pour sa version pragmatiste qui soutient que les libertés et les procédures démocratiques sont plus susceptibles de nous amener à la bonne conception de ce qui est vrai, équitable ou juste. Aujourd’hui, se concentrer sur la vérité est plus important que jamais. Nous (Robert Talisse et Cheryl Misak) avons proposé une argumentation selon laquelle les libertés et les procédures démocratiques peuvent être justifiées sur la base de raisons épistémiques. Nos pratiques de croire et de raisonner exigent que nous nous considérions comme des égaux sociaux et que les voix de tous soient prises au sérieux lorsque nous poursuivons la vérité. Annabelle Lever et Clayton Chin, tout en étant bien en faveur de notre projet général, ont exprimé leur crainte que nous ayons « tort de supposer que les considérations épistémiques soient mieux placées par rapport aux considérations morales pour justifier l’exercice du pouvoir coercitif ». En réponse, nous distinguons d’abord deux situations dans lesquelles la justification épistémique de la démocratie peut opérer. D’après nous, l’argument épistémique montre pourquoi nous devrions être démocrates. Mais la façon dont les démocrates peuvent justifier l’exercice de la coercition pose une question différente. Nous admettons que les raisons que nous mobilisons en tant que société pour justifier le pouvoir coercitif sur les citoyens seront, en effet, d’ordre moral. Notre argument a toujours été que nos croyances sur ce qui est moralement juste doivent – dans la mesure où ce sont des croyances motivées par notre quête de la vérité – être sensibles aux raisons d’autrui. L’argument pour la démocratie est seulement avancé dans un deuxième temps : la meilleure méthode pour atteindre la vérité est, d’une manière générale, une méthode démocratique. Or, les raisons qui seront mobilisées seront des raisons morales invoquant les principes d’égalité, d’autonomie, ou d’utilité.
Les acteurs noirs et le monde du théâtre
Authors: Bense Ferreira Alves Celia
Published: March 2021

Résumé Cet article décrit le processus par lequel les relations entre race et marché de l’emploi théâtral évoluent. À partir d’une enquête sur le monde du théâtre de la baie de San Francisco et en se concentrant sur les acteurs noirs, leur emploi et leur carrière, il montre que le changement répond à une dynamique complexe liée au mécanisme de négociation des conventions de représentation phénotypique. Celui-ci est contraint par un facteur structurel, la stratification théâtrale. La négociation a lieu dans des arènes, les spectacles. Elle implique deux groupes défendant des intérêts distincts et qui, de par la division du travail de production spectaculaire, entretiennent un rapport fortement asymétrique à la négociation. Deux catégories analytiques en rendent compte : les organisateurs et les modeleurs. Les organisateurs sont ceux qui préparent, structurent et définissent les limites de la négociation des conventions de représentation phénotypique. Dans cet espace, les modeleurs façonnent ces conventions en utilisant leur corps et leur technique. Il n’y a renouvellement des conventions que lorsque le résultat de la négociation est validé au sommet de la hiérarchie théâtrale, principalement occupé par des organisateurs blancs.
Bureaucratisation par le haut, bureaucratisation par le bas. Diffusion et réception d’un instrument managérial dans le contexte de la santé au Bénin
Authors: Soriat Clément
Published: March 2021

À partir d’une enquête de terrain et d’entretiens avec des responsables du Fonds mondial, cet article interroge, dans le contexte de la santé au Bénin, la diffusion d’un instrument d’action publique spécifique (la « gestion axée sur les résultats »). À travers ce processus, c’est plus généralement le mouvement de bureaucratisation propre à l’ère néolibéral qui est appréhendé. En particulier, il est rendu compte de la façon dont la rationalité managériale et le formalisme sont imposés par le Fonds mondial, par des techniques à la fois incitatives et répressives. Dans un deuxième temps, nous montrons que ces procédures font l’objet d’appropriations en fonction des logiques propres à l’administration béninoise. De ce point de vue, le rôle de « professionnel.le.s de l’action publique » est décisif. Individus appartenant à un groupe social favorisé, ils renforcent leurs positions par leur participation à des programmes internationaux, tout en luttant pour redéfinir les principes du fonctionnement de leur administration.
Prévalence et déterminants des risques psychosociaux du personnel en hôpital psychiatrique
Authors: Piperini Marie-Christine , Chaker Rawad , Simonian Stéphane , Garcia Jean-Philippe , Simeone Arnaud , Topouzkhanian Sylvia
Published: March 2021

L’objectif de cette étude est d’établir un diagnostic des risques psychosociaux dans le contexte de l’hôpital psychiatrique en explorant leurs déterminants. Pour ce faire, nous avons réalisé une enquête par questionnaires auto-administrés auprès de personnels volontaires (soignants, administratifs, et techniques) de 3 CHS de la région Rhône-Alpes-Auvergne. Nos résultats indiquent que nous sommes pour les répondants à cette enquête, au-delà de la prévention primaire : les 510 répondants ont témoigné d’un vécu subjectif critique sur plusieurs dimensions des risques psychosociaux. Nos résultats ouvrent des perspectives utiles dans le domaine du management. Améliorer la perception du soutien social apporté par les supérieurs hiérarchiques contribuerait à réduire l’épuisement professionnel constaté. Réduire le stress favoriserait une amélioration du sentiment d’accomplissement personnel, dont notre étude montre la faiblesse.
Slow-fast dynamics and nonlinear oscillations in transmission of mosquito-borne diseases
Authors: Shan Chunhua
Published: March 2021

Disease transmission can present significantly different cyclic patterns including small fluctuations, regular oscillations, and singular oscillations with short endemic period and long inter-epidemic period. In this paper we consider the slow-fast dynamics and nonlinear oscillations during the transmission of mosquito-borne diseases. Under the assumption that the host population has a small natural death rate, we prove the existence of relaxation oscillation cycles by geometric singular perturbation techniques and the delay of stability loss. Generation and annihilation of periodic orbits are investigated through local, semi-local bifurcations and bifurcation of slow-fast cycles. It turns out that relaxation oscillation cycles occur only if the basic reproduction number \begin{document}$ \mathcal{R}_0 $\end{document} is greater than 1, while small fluctuations and regular oscillations exist under much less restrictive conditions. Our results here provide a sound explanation for different cyclic patterns exhibited in the transmission of mosquito-borne diseases.
Cahn–Hilliard–Brinkman systems for tumour growth
Authors: Ebenbeck Matthias , Garcke Harald , Nürnberg Robert
Published: March 2021

A phase field model for tumour growth is introduced that is based on a Brinkman law for convective velocity fields. The model couples a convective Cahn–Hilliard equation for the evolution of the tumour to a reaction-diffusion-advection equation for a nutrient and to a Brinkman–Stokes type law for the fluid velocity. The model is derived from basic thermodynamical principles, sharp interface limits are derived by matched asymptotics and an existence theory is presented for the case of a mobility which degenerates in one phase leading to a degenerate parabolic equation of fourth order. Finally numerical results describe qualitative features of the solutions and illustrate instabilities in certain situations.
The many behaviors of deformable active droplets
Authors: Young Y. -N. , Shelley Michael J. , Stein David B.
Published: March 2021

Active fluids consume fuel at the microscopic scale, converting this energy into forces that can drive macroscopic motions over scales far larger than their microscopic constituents. In some cases, the mechanisms that give rise to this phenomenon have been well characterized, and can explain experimentally observed behaviors in both bulk fluids and those confined in simple stationary geometries. More recently, active fluids have been encapsulated in viscous drops or elastic shells so as to interact with an outer environment or a deformable boundary. Such systems are not as well understood. In this work, we examine the behavior of droplets of an active nematic fluid. We study their linear stability about the isotropic equilibrium over a wide range of parameters, identifying regions in which different modes of instability dominate. Simulations of their full dynamics are used to identify their nonlinear behavior within each region. When a single mode dominates, the droplets behave simply: as rotors, swimmers, or extensors. When parameters are tuned so that multiple modes have nearly the same growth rate, a pantheon of modes appears, including zigzaggers, washing machines, wanderers, and pulsators.
Digital Storytelling and Augmented Reality-Based Scenarios for Foreign Language Teaching
Authors: Arvanitis Panagiotis , Krystalli Pinelopi
Published: March 2021

The main goal of this chapter is to discuss some of the most useful language teaching digital tools, then to analyze their features as well as their potential uses from the perspective of a language teacher. It attempts to outline a practical framework for implementing digital storytelling (DST) and augmented reality (AR) concepts in the field of language teaching and to provide handy guide training scenarios for use in the foreign language classroom. In addition, it focuses on the reinforcement of motivation and engagement that DST and AR can cause in foreign language teaching process due to their playful character. The chapter consists of two main sections: In the first section, the authors briefly discuss the new era of mobile-assisted language learning (MALL) and the significant changes it brings to the field of language teaching and learning in relation to DST and AR. In the second section, they discuss some of the current language teaching digital tools and environments, examine their most important features and suggest DST and AR-based scenarios for language teaching.
Christian Majority and Muslim Minority Students in Komotini-Greece
Authors: Georgiadou Keratso
Published: March 2021

The purpose of the study was to examine the differences or similarities in ICT use among 120 students from a Christian majority population and from a Muslim minority population, boys and girls, ranging from 7 to 18 years old, all living in the town of Komotini (located in North-Eastern Greece). This research was carried out as the two communities share the same area for living but have different social backgrounds. Thus, it was a challenge for the researcher to identify if their lifestyle differences, their culture, and tradition affect their use of ICTs. The research identified the different ways in which children negotiate technically their relation to ICT and uncovers the varied impacts of technology such as internet safety, influence of use of ICTs, addiction to the internet, parents awareness of ICT use, and surveillance of their children.
Audio vs. Video Conferencing for Language Learning
Authors: Barley Natalia
Published: March 2021

This chapter will trace recent trends in research on audio and video conferencing for language learning and teaching and outline the affordances and mediating effects of each platform that have communicative, socio-affective, and cognitive implications. On the basis of these characteristics, the author will argue that both audio and video conferencing have the potential to foster language learner interaction; however, neither medium is appropriate for all tasks, learners, and learning contexts. The focus of future inquiry should be driven by the need to better understand the complex interrelationship of interaction and the multimodal context in which it occurs. The chapter will conclude with considerations for selecting the platform most appropriate for task goals and learning setting.
Mobile-Assisted Language Learning
Authors: Sletten Michael A.
Published: March 2021

Learning a second language is challenging for anyone worldwide. When trying to learn a second language in a remote area of the world or under circumstances that do not allow for face-to-face learning, it becomes even more challenging. With the invention and development of mobile devices such as phones and tablets, it becomes much easier to accomplish through mobile-assisted language learning (MALL). Mobile-assisted language learning allows for a user to learn a new language using their mobile device, which is a ubiquitous form of learning. Mobile-assisted language learning is not without risk or vulnerabilities, however. It is imperative that users receive security awareness training, so they can operate their mobile phone in a secure manner. It is also critical that the mobile phones, wireless networks, learning management systems, and computer networks are also secured against various types of viruses, malware, and attacks. Without certain security measures being installed and configured on these devices and systems, the potential for security breaches present themselves.
Digital Communication
Authors: Naidoo Gedala Mulliah , Naidoo Magdalene Kevisha
Published: March 2021

The South African basic education sector has been looking at adopting technology as part of their digital pedagogy; however, progress was slow since this was an overly ambitious transformation. Schools in rural communities lack infrastructure and basic needs like electricity, piped water, and ablutions. The COVID-19 phenomenon brought about the locking down, and physical distancing has further ensured that normal operations had to cease. The educational sector had to also cease physical engagement and turn to online teaching. A qualitative research method was used for this research. This chapter focuses on how teaching practices have been adapted to digital pedagogy and barriers play in successful teaching on digital platforms. The constructivism, two-way communication model, and scaffolding to provide conceptualised this research. Therefore, as part of a future study, it would be interesting to see how basic education maintains a digital teaching presence post-COVID-19 lockdown.
Blended Learning Training Course for Teachers' Professional Development
Authors: Tzatzou Dimitra
Published: March 2021

This chapter presents some of the results derived from the data analysis of a thesis which dealt with the conception, implementation, and evaluation of a blended learning training course in plurilingualism and pluriculturalism. More precisely, this blended learning training course was addressed at teachers working in Greek primary schools in the city of Thessaloniki. This chapter focuses on the last phase of this project, which is to say the evaluation phase in which the researcher interviewed participating teachers. The analysis of the interviews sheds light on the teachers' perceptions of blended learning as a training mode. The results present the difficulties the teachers encountered with distance training, as well as their views on the possible implementation of distance learning with their students. They also highlight the teachers' perceptions of online interaction on a forum with other participants, and of good blended learning.
Blended Learning
Authors: Datta Suchandra , Dey Soumili , Acharya Anal , Datta Debabrata
Published: March 2021

Evolution of new technologies introduces new methods by which students can gain knowledge and professors can impart it. Each learning method offers its own distinctive advantages and disadvantages which affect students having different learning preferences and temperaments in different ways. The study aims to investigate student's attitude towards two modes of learning, namely traditional learning and e-learning and uncover the underlying factor structure governing student appraisal of such systems. The aspects of each type of learning that are attractive to students are shown. Further, the two modes of learning are compared using different statistical techniques, and the findings are used to decide whether a mixture of traditional and e-learning is indeed the way ahead.
Transformation of the Turkish Automotive Sector
Authors: Aydogan Yigit
Published: March 2021

As an experienced automotive manufacturer, Turkey is following the global trend of the EV transition and on an enthusiastic start. A government-led action group for EV production called TOGG was initiated in 2018. Automotive sector in Turkey yields (but is not limited to) the following titles at the same time: a strength, a public revenue source, a trade dilemma, an (national) ambition. To tackle power grid problems due to increasing demand, renewable energy usage seems both challenging and necessary. There is a potentially favorable demand for EVs. Promoting the EVs for the customers requires strong infrastructure which seems lacking in Turkey. The EVCSs have been scarce against large land area of the country. On the contrary, consumers in Turkey buy too much BEVs against PHEVs compared to the EU which needs to be directed by the government accordingly to make a healthy transition in the future.
A Holistic Educational Philosophy Embodying Conscious Citizenship
Authors: Pelonis Peggy
Published: March 2021

The chapter outlines a philosophy of education that is holistic and embodies conscious citizenship. Students educated with this philosophy in mind are resilient, internationally minded, and interested in improving life and living on the planet. Institutions which aim to mold such citizens consider that educating mind, body, and spirit are essential, as well as providing opportunities for students to develop on a continuum of social awareness, social engagement, social commitment, and social initiative. Transforming mindsets in educational institutions necessitates faculty to be reflective practitioners and requires the designing of programs that empower purposeful living. Ultimately such institutions are transformative; they move beyond success to empowering continuous transformation. Such institutions can lead to the development of citizens who not only work (action) towards the common good but contribute to the common good in the way that they live life (being).
Middle and High School Implementations of Moodle-Facilitated Blended Instructional Designs
Authors: Sidiropoulou Maria Anna K. , Bakoyannis Christina , Karampelas Antonios
Published: March 2021

Web-based technologies such as Moodle (modular object-oriented dynamic learning environment) are regularly used in classrooms and present an effective way to reinforce blended learning of different curricula. Nontraditional learning methodologies such as the i2Flex model provide teachers with a range of options with regards to how to employ a constructivism-based instructional design and facilitate their shift from traditional instructors to effective learning facilitators. Consequently, students become inquirers and discover knowledge in a positive environment where flexibility and blendedness of learning styles optimize the learning outcome. The chapter discusses implementations of Moodle features and the support types with regards to the authors engagement in i2Flex methodology in order to update their practices in relation to enhancing the Community of Inquiry (CoI) Framework presences in Middle School and Academy Classes of Science, Physics, and Modern Language Arts.
Challenges and Approaches for Metrology of Additive Manufactured Lattice Structures by Industrial X-Ray Computed Tomography
Authors: Sperling Philip , du Plessis Anton , Schwaderer Gerd
Published: March 2021

Lattice structures can be highly complex imitating natural cellular materials. By the wide adoption of additive manufacturing technologies, lattice structures are a popular design element with many advantages for lightweight and highly functional parts. A detailed examination and an intense inspection of this type of new design element and this new production method is necessary to enable a broad industrialization. In this study we demonstrate how to use x-ray based industrial CT to measure lattice structures in additive manufacturing. This paper shows certain challenges and approaches for metrology on lattice structures. The results show significant deviations between designed and built parts, highlighting the need for quantification and non-destructive inspection.
Printing and Laser Curing of Ag and Cu Paste - Prospects and Challenges in Additive Manufacturing
Authors: Fichtner Juliane , Ulrich Tobias , Dani Ines , Dobeleit Philipp , Stoll Tobias , Ascheri Mary Esther
Published: March 2021

This study depicts substantial characteristics of copper and silver pastes, dispensed and cured by oven processing. Different analyses, such as second electron microscopy (SEM), rheometry, thermogravimetric analysis (TGA), UV-VIS-NIR-spectroscopy and 4-point measurement were used. This work also will illustrate some results of computational design of experiment (DOE) and regression analyses for jet and mechanical printing processes.
Influence of Intrinsic Heat Treatment (IHT) on Precipitation Kinetics during Laser Beam Powder Bed Fusion of Al-Mg-Sc Alloy
Authors: Patil Yuvaraj Ganpati , Mertens Loreen , Dröse Andre , Ploshikhin Vasily
Published: March 2021

Laser Beam Powder Bed Fusion (LBPBF) process has a unique feature termed as IntrinsicHeat Treatment (IHT), where solidified layers undergo series of heating and cooling (during thesubsequent building of a part). Thus, the LBPBF process offers the opportunity for the formation of microstructuralfeatures, which can have the potential to transform the mechanical properties of the part.In the case of AlMgSc alloy, L12 phase Al3Sc precipitates are thermodynamically favored to nucleatein the Al matrix due to coherency. After post-process analysis, it is evident that Al3Sc precipitatesformed during the LBPBF process, but it is unlikely to monitor (in-situ) the kinetics of precipitation.Therefore, based on inputs from the thermal model, the simulation of precipitation kinetics during theLBPBF process (IHT) is performed. The rapid heating and cooling cause the formation of new vacancies,where Al3Sc precipitates can nucleate and grow. The KWN model based on solid-state phasetransformation is used for modeling of precipitation kinetics. The thermal data at two locations in apart is collected and used to determine the average radius, number density, and volume fraction ofprecipitates. It is found that the IHT does not influence precipitation kinetics, and has no potential toalter the spatial properties of the part.
DoE Applied to Thermal Analysis and Simulation of Geometrical Stability of a Wind Turbine Blade Made by Selective Laser Melting
Authors: Razavykia Abbas , Brusa Eugenio , Ghodsieh Sina , Giorio Lorenzo
Published: March 2021

The Selective Laser Melting (SLM) is one of the most demanding additive manufacturing(AM) processes, although it assures some superior advantages in producing complex structural componentsand applies to a wide range of materials. The control of SLM parameters is crucial to guaranteethe quality of manufactured component. The steep thermal variation in part during the SLM processinduces some undesired effects, such as warping, residual thermal stresses and microcracks,as wellas geometrical instability. Effectively predicting the influence of process parameters upon the productquality of part made by SLM is extremely useful in the earliest steps of design, especially whena higher productivity is required. Particularly, thermal simulation is used to suitably calibrate someprocess parameters, to improve efficiency and reduce defects. Besides, such simulation is exploited toimprove the heat transfer between the bed and the first product layer, to reduce thermal stress and theoverall product deformation. This study exemplifies how numerical modeling of temperature distributionin a wind turbine blade made by SLM allows predicting the dimensional stability. The Design ofExperiments (DoE) and ANOVA analysis helped in studying effects on the product geometric stabilityand deformation, of some process parameters, as powder layer thickness, hatch space and laser scanspeed.
Effect of Natural Weathering Ageing on Mechanical Properties of Virgin and Recycled Polylactic Acid
Authors: Budin Salina , Hyie Koay Mei , Maideen Normariah Che , Fohimi Nor Azirah Mohd
Published: March 2021

Due to a huge usage of plastics in the packaging industry, an abundant of plastics wastes is dumped at landfills. The environmental issue has given a serious impact to wildlife and humans. Hence, it is strongly advised to substitute the petroleum-based plastics with other plant-based polymers. One of the most popular bioplastics is polylactic acid (PLA). PLA can be biodegraded and recycled. The aim of this work is to investigate the effect of natural weathering ageing on the mechanical properties of virgin and recycled PLA. The investigation was focused on the tensile strength, transverse rupture strength (TRS) and impact energy. The samples were produced using the injection molding process. The samples were exposed to natural weathering continuously for 150 days. The sample inspection was monitored for every 30 days. The results showed that a decreasing in tensile strength of the recycled PLA was faster as compared to the virgin PLA. After 150 days exposed in natural weathering, there is about 41% reduction in the tensile strength of the recycled PLA. As for virgin PLA, the tensile strength is reduced approximately 11%. Similar trend was observed on the transverse rupture strength. The TRS for virgin PLA has dropped almost 14%. On the other hand, the TRS for recycled PLA declined at 17%. The diminishing in impact energy is more significant where it reduced 56% and 73% for virgin PLA and recycled PLA, respectively.
Improving the Tensile Properties of Curcuma Mangga Val Extract (CMVE)/PVA Nanofiber Mats by Using a Type of Non-Commercial CMVE
Authors: Sosiati Harini , Ardinista Angga , Rianto M. Dirga , Revarti Ardhia , Hamdan Sinin , Wandono Kunto
Published: March 2021

The commercially available Curcuma mangga Val extract (CMVE) and poly (vinyl alcohol) (PVA) blends were studied by electrospinning. The result showed inadequate tensile properties of commercial CMVE/PVA nanofiber mats with very high modulus (220.0 MPa) and low strain (50%). The commercial CMVE was then replaced by a type of non-commercial CMVE to compare them with those of the commercial bandage. A non-commercial CMVE was prepared by simply extracting of the fresh Curcuma mangga Val (CMV) produced in a liquid extract. This non-commercial CMVE was then blended with 10% (w/w) PVA at various concentrations of CMVE (0, 2, 5, 10 and 15%) (w/w). The morphology and tensile properties of the mats were investigated. The findings indicated that the tensile strength and modulus increased with CMVE concentrations, decreased of the mean fiber diameter. In this study, a nanofiber mat with a concentration of 2% CMVE was selected and compared to others. This mat had lower average fiber diameter (187.50 nm), tensile strength (8.93 ± 0.36 MPa) and modulus (31.37 ± 4.91MPa), and higher tensile strain (90%) than the commercial CMVE/PVA. Compared to the tensile properties of the Hansaplast bandage, the current tensile strength was higher, the tensile modulus was equivalent and lower tensile strain.
Parametric Study of the Adsorption of Pb (II) and Cr (VI) Ions on Modified PAN-Kapok Fibers
Authors: Alipoyo Jericko C. , Magoncia Venniece Etienne B. , Perido Angel Ainaleigh M. , Balela Mary Donnabelle L.
Published: March 2021

This paper presents a parametric study on the adsorptive property of NaOH-treated polyacrylonitrile (PAN)-kapok fibers for the removal of Pb (II) and Cr (VI) ions in aqueous solutions. Generally, the NaOH-hydrolyzed PAN-kapok favors the adsorption of Pb (II) compared to Cr (VI). The adsorption capacity was in the range of 41.67-83.33 mg/g as the initial Pb (II) concentration was increased from 50 to 100 ppm. Similarly, the adsorption capacity for Cr (VI) was from 8.24 to 15.81 mg/g as the initial concentration was raised from 50 to 150 ppm. The adsorption capacity was also enhanced by increasing the adsorbent dosage. Finally, uptake of Pb (II) at the early stages of the adsorption was fast, with adsorption capacity reaching ~120 mg/g.
Hydrothermal Synthesis of Binder-Free Kapok (Ceiba pentandra) Fiber Paper-NiCo2O4 Supercapacitor Electrode
Authors: Fermano Kenneth C. , Balela Mary Donnabelle L.
Published: March 2021

There is a need to address the gap between the theoretical benefits and cost-efficient production of supercapacitors in the market in order to sway the preference of the industry from the current perishable energy sources and storage. More extensive exploration of sustainable fabrication methods and materials used for renewable energy storage are just some of the factors that would decrease this gap. A binder-free supercapacitor electrode made of NiCo2O4 and carbonized kapok fiber paper (CKFP) was successfully fabricated by hydrothermal process at relatively low temperatures. NiCo2O4 urchin-like structures were deposited on the surface of carbon fiber paper (CFP) and CKFP. XRD analysis confirmed the successful conversion of kapok fiber paper to CKFP after pyrolysis, as well as the growth of pure spinel NiCo2O4 nanostructures on CFP and CKFP. The cyclic voltammetry curves showed that the CFP-NiCo2O4 prepared at 140 °C had the highest specific capacitance of 143.51 Fg-1 at 2 mVs-1. The CKFP-NiCo2O4 synthesized at the same temperature yielded slightly higher specific capacitance of 146.29 Fg-1 at 2 mVs-1, and 508 Fg-1 at 0.5 Ag-1.
Study of Mechanical Properties of 3D Printed Material for Non-Pneumatic Tire Spoke
Authors: Rugsaj Ravivat , Suvanjumrat Chakrit
Published: March 2021

The spokes of airless tire or non-pneumatic tire (NPT) are normally made with thermoplastic polyurethane (TPU), which is highly elastic material, to replace inflation pressure in conventional pneumatic tire. However there are limitation in designing of complex spoke geometries due to difficulty in manufacturing process, which normally involve molding process. Recently, the 3D printing technique has been improved and can be used to create highly complex geometries with wide range of materials. However the mechanical properties of printed spoke structure using 3D printing technique are still required to design and development of NPT. This research aim to study the mechanical properties of TPU while varying in printing conditions. The specimens were prepared from actual NPT spoke using waterjet cutting technique and 3D printing technique according to the testing standard ASTM D412 and D638, respectively. The tensile tests were performed on the specimens with corresponding crosshead speed. The testing speed of 3D printed specimen were also varied to 100 and 200 mm/min to study the effects of strain rate on mechanical properties. The stress-strain relationships were obtained from tensile testing and the important mechanical properties were then evaluated. The mechanical properties of specimens prepared from actual NPT spokes and 3D printed specimens were then compared. The ultimate stress of specimens prepared from actual NPT spokes in radial direction and 3D printed specimens with 100% infill were found to be 32.92 and 25.47 MPa, respectively, while the breaking strain were found to be 12.98 and 10.87, respectively. Thus, the information obtained from this research can be used to ensure the possibility in creating NPT spoke using 3D printing technique based on elastic material such as TPU.
Table of Contents Vol 9 (2020)
Authors: Office Editorial
Published: March 2021

No abstract available.
Table of Contents Vol 76, No 3 (2020)
Authors: Office Editorial
Published: March 2021

No abstract available.
Different Attitudes in the Management of Different Types of Status Epilepticus
Authors: Gömceli Yasemin Biçer , Altındağ Ebru Aykutlu , Baykan Betül , Commission Status Epilepticus
Published: March 2021

Purpose:

The aim is to identify current diagnostic and therapeutic approach to different types of status epilepticus (SE) including convulsive SE (CSE), non-CSE (NCSE), and epilepsia partialis continua (EPC) to detect unmet needs and problems encountered during the management of these neurological emergencies in our country, Turkey.

Methods:

The specifically designed SE survey included 31 questions that were related to the incidence, the distribution of etiological causes, the diagnostic process, and the treatment approaches of the neurologists and individual electroencephalography (EEG) facilities of the institutions.

Results:

The total number of respondents was 152 with a median years of experience in professional practice of 10.8 years (1–39 years). The great majority of the neurologists preferred diazepam plus phenytoin as the first choice drug in the treatment of CSE. Of the respondents, only 55% accepted the SE as refractory after applying the second drug and they monitored these patients in the intensive care unit (ICU). Most of the participants (67.7%) did not provide any treatment except the standard medical approaches, while only 39 (30.7%) had used immunotherapy in the treatment of super-refractory SE. Forty-seven respondents (37%) indicated that they had difficulty identifying NCSE on EEG. While 37% of the participants treated EPC patients with preserved consciousness in ICU by general anesthesia, only 15% were previously applied immunotherapy. Strikingly, 41% of the participants stated that they did not feel themselves as sufficiently competent in terms of practical and theoretical knowledge about the management of SE.

Conclusion:

We demonstrated that there are no standardized attitudes for the management of different types of SE among neurologists. It is worth to emphasize that the neurologists did not feel themselves sufficiently competent in terms of practical and theoretical knowledge, especially with regard to the subtypes of SE.
Health-seeking behaviour of commercial bus drivers in Uyo, Nigeria
Authors: Johnson Ofonime Effiong
Published: March 2021

Background:

Commercial driving is a highly demanding job which often exposes the drivers to different health problems necessitating treatment. Various treatment options are available to these drivers. The objectives of this study were to assess the health problems and health-seeking practices of commercial bus drivers in Uyo, Nigeria.

Methodology:

This was a descriptive cross-sectional study carried out in March, 2020. Data collection was done using an interviewer-administered semi-structured questionnaire. Analysis of data was carried out with IBM SPSS Statistics, version 20.0. The level of significance was set at P < 0.05.

Results:

A total of 121 male respondents participated in the study. The mean age of respondents was 40.45 ± 10.49 years. More than half 71 (58.7%) respondents had completed secondary education. The most common health problems reported by respondents were low back pain (55.4%), insomnia (55.4%) and body aches (52.1%). The usual sources of treatment were chemist (60.3%), herbal remedies (51.3%), health facility (25.6%) and self-medication (17.4%). Among 32 (26.4%) respondents that ever had fractures, 23 (71.9%) received treatment from bone setters. Care seeking in health facility as reported by the drivers was mainly influenced by treatment cost (43; 35.5%) and waiting time (23; 19.0%).

Conclusion:

Commercial drivers in this study obtained treatment more frequently from places outside the health facilities. Health education on advantages of expert medical consultations and treatment in health facilities should be carried out through their transport unions. Furthermore, mechanisms to reduce waiting time and treatment cost in health facilities should be explored for this group of workers.