Miracle-dz/UniFAR-FTUs huggingface dataset:
What is happening in the process of engaging Architectural Students and Teachers for Including Virtual and Interactive Systems in the Projects Developments?

The new technologies applied to complex learning environments need a pedagogical design adapted to the competences that we want to enforce or improve, the adaptation of the teacher, new and actualized resources, and the capacity to make the learning following both, the face-to-face as the on-line mode. Our paper presents the perception of students and teachers, how by using the Project-Based Learning (PBL) approach and using a gamified and interactive Virtual Reality (VR) system in the context of Building, Urban and Architecture studies we can re-force the acquisition of visual management competences. To improve the spatial competences and the visual understanding of 3D complex models for re-organizing the urban space, we have designed an educational proposal based on free applications where the students must design, create and integrate ephemeral architecture proposals for a citizenship final urban interaction. This step incorporates to the student's assessment an informal feedback, which complements the formal evaluation and gives them a point of view based on valuable social data for further projects. However, the lack of standards, the complexity of the software, the learning times, and the teacher's rejection to use these approaches, many times due to lack of interest or because of the digital gap derived from age and the classical workflows, are factors that are complicating the modernization of the learning process, establishing a low level of implantation and student's use in other subjects, as our study demonstrates. For these reasons, we have conducted an explorative research to compare the perception of the students and the teachers, with the clear result, that shows that nowadays in Architecture education, we can find a gender, and age gap in the acceptation of these systems, something that blocks their training, while in the professional sector are used and demanded.
Photo-oxidation and electrical aging of anhydride-cured epoxy resins

Multifactor surface aging of anhydride cured epoxides was studied. Three systems based on diglycidyl ether of bisphenol A (DGEBA) and cycloaliphatic epoxy were investigated. They were submitted either to a solar irradiation alone, or to a tangential ac electric field, or to both stresses in a laboratory setup or outdoors. The ac voltage was applied between two electrodes inserted into the sample surface. Before aging, the applied ac voltage was lower than the inception voltage of discharges. The main structural changes of the surface of the three epoxy networks were determined by Fourier transform infrared (FTIR), attenuated total reflection (ATR) and X-ray microanalysis. The evolution of the surface conductivity was investigated by current-voltage measurements and by the method of the surface potential decay. Solar irradiation of the different resins led to the buildup of IR bands characteristic of hydroxyl and carboxylic groups. These groups are very hydrophilic and have a strong impact on the electrical properties of the surface of the resins, especially in wet medium. Under both electric and climatic stresses, decarboxylation or decarbonylation of the photo-oxidized surface occurred at the polymer-electrode interface and were attributed to electrode reactions. Tracking was observed only after electrical aging alone. This unexpected result shows that a homogeneous, slightly conducting surface may prevent the formation of tracks on the surface of aged insulators.
Overview of European educational projects on eLearning and related methodologies: Data from Erasmus+ Project Results Platform

Collecting data from Erasmus+ projects related to eLearning and the associated methodologies in order to detect those that have been identified as good practice or success story could be very useful in order to help teachers to define success projects in that field. In order to compile projects of interest, we have the Erasmus+ Project Results Platform, which has a very useful information database to locate educational projects that have been funded by the European Union. This database compiles European educational projects that have been developed in Erasmus+ and also in previous programs such as Lifelong Learning Programme since 2007. The advantage of using this tool is that it has a search engine that allows you to search by keywords and has different criteria to filter. It also allows you to export up to a maximum of 1000 projects per search in excel format with basic data from the filtered projects. Therefore, using this tool is key to be able to identify good practices in European educational projects that serve as a reference to find the parameters useful for learning improvement. This article presents the main data collected from the analysis of educational projects that are connected with eLearning and related methodologies in the aforementioned platform. It also defines which ones will be selected to be able to address an adequate analysis that is manageable to carry out the definition of a methodological guide. As a result of the initial analysis, it is considered appropriate to carry out a review of the projects linked to eLearning in KA1 and KA2 actions that have more than 50 projects connected to this topic, involving educational centers, and that are labelled as good practice and / or success story. With the projects that meet these criteria, there is enough information to achieve the objectives of the research in order to be able to design a methodological guide with the key aspects for implementing eLearning projects.
Exploring the Requirements of Pandemic Awareness Systems: A Case Study of COVID-19 Using Social Media Data

With the exponential growth of social media platforms like Twitter, a seemingly vast amount of data has become available for mining to draw conclusions about various topics, including awareness systems requirements. The exchange of health-related information on social media has been heralded as a new way to explore information-seeking behaviour during pandemics and design and develop awareness systems that address the public's information needs. Online datasets such as Twitter, Google Trends and Reddit have several advantages over traditional data sources, including real-time data availability, ease of access, and reduced cost. In this paper, to explore the pandemic awareness systems (PAS), requirements, we utilize data from the large accessible database of tweets and Reddit's posts to explore the contextual patterns and temporal trends in Canadians' information-seeking behaviour during the COVID-19 pandemic. To validate our inferences and to understand how Google searches regarding COVID-19 were distributed throughout the course of the pandemic in Canada, we complement our Twitter and Reddit data with that collected through Google Trends, which tracks the popularity of specific search terms on Google. Our results show that Social media content contains useful technical information and can be used as a source to explore the requirements of pandemic awareness systems.
Evaluating effectiveness of innovative education formats for 21st century skills: The example of DaVinciLab YouthHackathon Workshops 2019/2020

It has become increasingly important for youngsters to acquire digital competencies and 21st century skills. Schools across different countries have introduced in their curricula activities and topics on these efforts, however, to varying degrees and with varying effectiveness, depending on a number of reasons. In this paper we report on a study on the effectiveness of the DaVinciLab Youth Hackathon (YH) workshops as a form of intervention in the school system in order to increase digital competencies and 21st skills (4Cs - Communication, Collaboration, Critical Reflection and Creativity) among students and teachers as part of the implementation of basic digital education (Digitale Grundbildung) in Austrian schools. Our methodical research approach included participating observations of YH workshops in and outside the school setting, quantitative surveys and a literature review in the field of learning science. Our evaluation showed that the workshops can be an effective addition and support for schools to close current gaps in the curriculum for basic digital education and to implement parts of the curriculum through project and team-based teaching and learning methods. In order to integrate the format more strongly into the Austrian educational ecosystem, longer-term funding and better integration into training programs for teachers/in-service teachers would be needed. Finally, long-term support through research studies that are carried out in cooperation with different educational institutions could be helpful in future improvements.
Gamifying Teacher Students’ Learning Platform: Information and Communication Technology in Teacher Education courses

This paper presents initial results from a study exploring teacher students’ experiences related to the gamification of an online learning platform in higher education. The aim was to get an understanding of the participants’ views regarding the use of game elements and to examine the user type profile of this group in order to explore the potential of applying user types in planning gamification solutions for teacher students. The participants’ overall experience of having game elements as part of their course platform was principally positive. User types students presented were investigated using the Hexad scale adapted from game design: in this user group, Socialiser and Philanthropist were the predominant types while Disruptor was by far the least common one. In terms of learning tasks, the participants expressed being motivated particularly by tasks with a strong creative focus. The findings inform us about the directions to take in the development of suitable solutions for supporting teacher students’ motivation in online and blended learning.
Educational coaching applied to group tutoring sessions: An experience with first-year engineering students

Education coaching is a tool which enables students to fully exploit their personal development. Studies in recent year have shown that when receptiveness is high, Coaching positively affects learning outcomes and considerably reduces the number of dropouts. However, this article focuses on how the strategic timing of the group coaching sessions in the academic calendar can impact their effectiveness. Our experience was carried out in the academic year 2018-19 with first-year engineering students, given that these are the students with the highest drop-out rate in our institution.
Acute and subacute toxicity studies of Pluronic P85/poly (lactic acid) nanoparticles in mice

The objective of the present reported study was to evaluate the oral toxicity of poly (lactic acid)-b-Pluronic-b-poly (lactic acid) (PLA-P85-PLA) nanoparticles (NPs) so as to demonstrate their applicability for drug delivery applications. In acute oral toxicity studies, the animals were fed with 0.4 ml PLA-P85-PLA NPs solution in different concentrations (low concentration: 20 mg/l, intermediate concentration: 100 mg/l and higher concentration: 500 mg/l) for 14 days; no deaths or treatment related complications were observed even in the higher concentration treatment. In case of the subacute oral toxicity test, the NPs were administered orally to mice for a period of 28 days. At the end of the study, blood samples were collected for biochemical analysis. For histopathological analysis, organs of the animals were weighed and processed. All the animals survived during the study, with no significant changes in clinical signs, body weight, feed consumption, biochemistry parameters, organ weights and histopathological findings. These results demonstrate that PLA-P85-PLA NPs produced no treatment related toxicity in mice following oral administration, thus, they can be exploited for potential therapeutic applications.
INTENSITY DISCRIMINATION IN THE HUMAN EYE

1. A new apparatus is described for measuring visual intensity discrimination over a large range of intensities, with white light and with selected portions of the spectrum. With it measurements were made of the intensity ΔI which is just perceptible when it is added for a short time to a portion of a field of intensity I to which the eye has been adapted. 2. For white and for all colors the fraction ΔI/I decreases as I increases and reaches an asymptotic minimum value at high values of I. In addition, with white light the relation between ΔI/I and I shows two sections, one at low intensities and the other at high intensities, the two being separated by an abrupt transition. These findings are contrary to the generally accepted measurements of Koenig and Brodhun; however, they confirm the recent work of Steinhardt, as well as the older work of Blanchard and of Aubert. The abrupt transition is in keeping with the Duplicity theory which attributes the two sections to the functions of the rods and cones respectively. 3. Measurements with five parts of the spectrum amplify these relationships in terms of the different spectral sensibilities of the rods and cones. With extreme red light the relation of ΔI/I to I shows only a high intensity section corresponding to cone function, while with other colors the low intensity rod section appears and increases in extent as the light used moves toward the violet end of the spectrum. 4. Like most of the previously published data from various sources, the present numerical data are all described with precision by the theory which supposes that intensity discrimination is determined by the initial photochemical and chemical events in the rods and cones.
XeCl Excimer Laser-Induced Shock Wave Plasma and its Application to Emission Spectrochemical Analysis

A XeCl excimer laser (20 ns, 15–70 mJ) has been focused on a Zn plate in surrounding gas at low pressures (100–1500 Pa). The characteristics of the resultant plasma are examined with the use of a unique time-resolved spectroscopic method. A density jump in the distribution of Zn atoms is clearly observed, which indicates the generation of a shock wave. Furthermore, it is proved that the relationships among the displacement length of the front of the emission of the Zn neutral emission line, the pressure of the ambient gas, and the energy of the laser pulse are in good agreement with the theoretical result for a blast wave explosion. An application is also presented to show that the plasma induced by a blast wave is excellent as a light source for emission spectrochemical analysis because of its very low background emission intensity.
Formation in Data Science in Secondary Education: Big Data as a transversal competence

Data science is a contemporary discipline that combines computational and mathematical approaches to gain meaningful knowledge of data. It is presented as the solution to problems that we can now solve thanks to the new techniques and methodologies at our disposal. It is emerging as a key capacity for society and, especially, for the current job market. As such, it is a competency that must be incorporated into secondary education. This is because young people must have the necessary training to understand how data is acquired and used in the world, with the aim of achieving more complete professional profiles. The purpose of this work is to outline a Data Science framework as a transversal competence to be incorporated in Secondary Education. For this, a reflection is presented after conducting a review of previous works, focused on the professional sector, and supporting it with the findings of a representative survey of Spanish citizens. The results show that the level of understanding and interest of young people in Data Science is insufficient for the current context and, especially, the labor market.
The Impact of Anthropomorphism on Consumers’ Purchase Decision in Chatbot Commerce

Abstract Numerous businesses have employed chatbots with a human-like speaking ability to assist customers with online shopping and customer service; however, it is uncertain whether or not these efforts will pay off by consumers engaging with them. Would young, digital-native consumers use chatbots as we anticipated? If so, what would make them use chatbots? Academic investigations into consumers’ perceptions and acceptance of chatbot commerce are lacking. This research tries to address this question by examining the effect of anthropomorphism on consumers’ perceptions of mobile messenger chatbots and its impact on behavioral decision making. The findings confirm that anthropomorphism plays a positive role in shaping consumers’ intentions to purchase through chatbot commerce.
Antecedents of Blackboard Adoption by Lecturers at a South African Higher Education Institution - Extending GETAMEL

Learning Management Systems (LMS) have become central to the teaching and learning in Higher Education Institutions (HEI). The aim of this paper was to test the constructs of the General Extended Technology Acceptance Model for e-Learning (GETAMEL) and some selected constructs from the other Technology Acceptance Models (TAM) on adoption and use of Black-board LMS by lecturers at a selected university in South Africa. A cross sec-tional electronic survey was carried out to obtain data from 101 lecturers, who were conveniently sampled to express their perceptions on BLMS. Structural equation modelling, utilising SmartPLS3, was used to analyse the collected data. The results confirmed that behavioural intention (BI) influ-enced actual use whilst BI in turn was influenced by perceived usefulness (PU) and subjective norm (SN). Attitude was influenced by PU but had no significant effect on BI. The external factors that influenced perceived ease of use (PEOU) included perceived enjoyment (ENJOY), system self-efficacy (SE), and system anxiety (ANX) whilst PU was influenced by job relevance (JR) and PEOU. University management at the HEI under study should con-sider the determinants of SE, ENJOY and ANX if they need effective utilisation of Blackboard by the lecturers. The study findings imply that a LMS that is adopted and used is one that is considered useful, otherwise users will be reluctant to use it. The findings can assist HEIs in preparing their lecturers before implementation of any e-learning systems, such as training and technical support, thus, enhancing LMS adoption and utilisation. This study contributes to the body of knowledge on antecedents of LMS adoption and use. In addition, it establishes the applicability of GETAMEL in a South African university context.
Designing and Developing e-Assessment Delivery System Under IMS QTI ver.2.2 Specification

Using technology to create online examination is important, more than that, exploring the recent research in the area of standardization of the learning and the assessment content is of paramount. However, there is still a lack of reusable, interoperable and exchangeable learning resources that afford much motivation to instructors. Assessing acquired knowledge is the primary task of any Learning Management Systems (LMS). Consequent-ly, sharing evaluation contents is a major challenge for software engineering. In this paper, we present the “CleverTesting” assessment authoring tool, focusing on its architecture and its conformance to the Question and Test Interoperability (QTI) specification proposed by IMS Global Learning Consortium. We adopt the QTI specification to create reusable, interoperable and sharable assessment content. Our system has three important components: The first component is “CleverTesting” a quiz authoring tool that allows building sharable question items. The second represents a question bank. The latest component is a player for interpreting and parsing QTI XML documents.
Combined Trajectory Planning and Tracking for Autonomous Vehicle Considering Driving Styles

Autonomous driving is one of the promising technologies to tackle traffic accident and congestion problems nowadays. Even though an autonomous vehicle is operated without humans, it is necessary to reflect the driving characteristics of a human driver. This can increase user acceptance to autonomous driving system, which in turn will improve driving safety because of human occupants’ trust in it. In this paper, a combined trajectory planning and tracking algorithm is proposed for the vehicle control. Firstly, traffic environments and driving styles are modeled with the Artificial Potential Field (APF) approach. Secondly, those APF values are integrated into the Model Predictive Control (MPC) design process, which can optimize the trajectories and control outputs. In this way, we add people’s driving habits and styles into the controller, so that the controlled vehicle can move under the effects of the traffic environments and human’s driving styles. At last, autonomous driving, which reflects two types of human drivers’ driving styles (a cautious driving style and an aggressive one), is tested by the simulation experiments in two scenarios (car-following and lane-changing). Furthermore, the result demonstrates that the proposed algorithm can reflect driving styles. Accordingly, this novel controller can be utilized in the autonomous vehicle control field.
Anomalous inductive effect in selenium Schottky diodes

A region of anomalous negative capacitance has been observed with forward bias in Se‐Tl Schottky evaporated layer structures. The effect, which is more prevalent in diodes with lower series resistance, is due to an inductive contribution to the impedance that is believed to arise from high‐level injection of minority electrons into the bulk selenium.
Finite element analysis of stem cells mechanical stimulations for differentiation into cardiomyocytes

Heart failure is the leading cause of death in the world and there are still many flaws in its diagnosis. At present, surgical interventions for the treatment of cardiovascular disease are limited to the absence of organ donors for transplantation and the complications of immunosuppressive therapy. Researchers are looking for new ways to regenerate a damaged heart. Tissue engineering has emerged as a new technology using cells with regenerative capacity, scaffolds, and growth factors. Stem cells are optimal cell sources for cardiac tissue engineering due to their ability to self-repair and differentiation into cardiomyocytes. Since the cardiomyocytes inside the body are in a dynamic environment under cyclic strain and pulsatile flow due to the rhythmic heartbeat, these mechanical stimuli are important factors in differentiating stem cells, regulating cardiac tissue function, and homeostasis. This study aims to simulate the effect of pulsatile flow and cyclic strain exerted on a perfusion bioreactor on stem cells for cardiac tissue engineering applications (cardiomyocyte cells). Since shear stress activates transcription pathways, this parameter is very effective in the differentiation of stem cells to cardiomyocytes. The present study attempts to evaluate the effect of frequency on the maximum magnitude of shear stress created on the embryonic stem cell layer. By applying the fluid-solid interaction method to solve the problem by two-way coupling of the equations, the results show that all the obtained values of shear stress at frequencies of 0.33 and 1 Hz and with frequency difference in cyclic strain (0.33 Hz) and pulsatile flow (1 Hz) are in the suitable range for differentiation of the stem cells to cardiomyocytes. The corresponding shear stress values are 0.00562, 0.02 and 0.01 dyn/cm2, respectively.