Miracle-dz/UniFAR-FTUs huggingface dataset:
Microteaching in Isolation: Fostering Autonomy and Learner Engagement through VoiceThread

As ESL and TESOL programs moved to an online or remote teaching mode rather rapidly during the first half of 2020, many of the practical elements of face-to-face teaching needed to be reconciled in the new mode. Likewise, in a TESOL teacher training unit at Macquarie University, Australia, highly practical elements of the unit needed to be changed to an online mode in line with the new restrictions. In order to address these challenges, online microteaching activities were implemented, employing the principles of Learning-Oriented Assessment (LOA) and learner autonomy. Responding to the students’ needs, a series of asynchronous tasks were created using VoiceThread, a multimodal asynchronous interactive platform, and enabling tasks facilitated by a combination of videos, interactive H5P tasks and forums. We have found that the new approach not only met the Unit Learning Outcomes (ULOs), including the practical application of teaching methodologies, but also had further advantages. The additional strengths of the approach include increased feedback literacy, and information and communication technology (ICT) skills for students, developing autonomy as learners and teachers, and developing a community and fostering engagement. The present task design is applicable to English for specific purposes (ESP) and general English teaching contexts in both fully online and face-to-face delivery modes.
Linear Static Analysis of Curved Tapered Timoshenko Beam Elements using Force Based Formulation

Abstract: This paper presents a force based finite element model for linear static analysis of 2-D curved tapered Timoshenko beam elements having variable depth and uniform width. The force interpolation functions are selected such that equilibrium of bending moments, shear forces and axial forces are satisfied in the strong form at any internal point, devoid of any additional assumption for variation of displacement. Hence the derived element stiffness matrix is exact even for curved tapered members with variable depth. Displacement based finite element approach that is commonly used in commercial finite element packages, uses an assumption for the distribution of displacement along the element, which does not satisfy the governing differential equations of the Timoshenko element. Hence, such approaches does not provide closed form exact solutions for the deflection of a curved tapered beam and requires discretization using a large number of elements. The results of a linear static analysis of a 2-D curved tapered cantilever Timoshenko beam obtained using the proposed model were compared with those of discretized displacement based models to highlight the accuracy and computational efficiency of the proposed force based finite element model in analysing 2-D structures with complex geometries.
Quadruped robot that uses central pattern generator to traverse terrains

The main aim of this project is to design and fabricate a quadruped robot that can traverse through various terrains and exhibit different gaits. The different gaits of the robot are generated by a CPG (Central Pattern generator). Central pattern generator produces periodic motion for robots legs. In general, central pattern generator works even when the signals from sensors and brain are cut off. To stabilize the motion and detect obstacles a CPG has been proposed uses feedback from sensors to stabilize the robot’s motion. CPG accepts inputs from a gyroscope and ultrasonic sensor and produces waveform for leg movements. The proposed model of the robot employs ‘all-elbow’ configuration for better pitch control in uneven terrains.
A linear wave propagation‐based simulation model for dense and polarized crowds

Fluid‐like motion and linear wave propagation behavior will emerge when we impose boundary constraints and polarized conditions on crowds. To this end, we present a Lagrangian hydrodynamics method to simulate the fluid‐like motion of crowd and a triggering approach to generate the linear stop‐and‐go wave behavior. Specifically, we impose a self‐propulsion force on the leading agents of the crowd to push the crowd to move forward and introduce a Smoothed Particle Hydrodynamics‐based model to simulate the dynamics of dense crowds. Besides, we present a motion signal propagation approach to trigger the rest of the crowd so that they respond to the immediate leaders linearly, which can lead to the linear stop‐and‐go wave effect of the fluid‐like motion for the crowd. Our experiments demonstrate that our model can simulate large‐scale dense crowds with linear wave propagation.
Risk Factors for Housing Evictions: Evidence from Panel Data

\ Abstract_ A large number of individuals are evicted from their homes each year. Yet, virtually all prior studies addressing risk factors for being evicted have been based on individual-level, mostly cross-sectional, data. Using Swedish longitudinal municipal-level data, this study assesses whether the associations between various social and demographic risk factors and evictions found in previous studies hold when accounting for temporal and spatial variations. Panel regression analyses show that increased levels of unemployment, social assistance recipiency, low education, single households with children, and crime are significantly associated with more evictions over time. Increased levels of single households without children, family disruption, and individuals with foreign background were not found to be significantly related to more evictions. The results of this study advance our understanding about the correlates for being evicted and may thereby inform policy efforts designed to prevent eviction and stem its consequences.
THE EFFECT OF V2O5 MELT INFILTRATION ON THE FAILURE OF THERMAL BARRIER COATINGS

The use of low quality fuel in land based driven turbine in Saudi Arabia usually results in hot corrosion attack (Type 1) due to the penetration of V2O5 into the existing micro pores and cracks on the top coat of thermal barrier coatings (TBCs). As a result of dissolution-precipitation reaction, 4-5% volumetric expansion of the coating occurs due to the tetragonal-to-monoclinic (destabilization) transformation of Zirconia. In the current work, a Phase Field Model that estimates the kinetics of micro-structural evolution during the diffusional tetragonal-to-monoclinic phase transformation in the Melt Infiltrated Reaction Zone of the top coat at 900oC is developed. The model is sequentiallycoupled with constitutive model in order to determine the resulting stress field developed in the top coat. The results show that localized stresses are developed due to the Zirconia-destabilization transformation, and the stresses are found to be higher at the corners and curvatures formed by inter-lamella connection of the micro-pores and micro-cracks.
Frequent Term Summarization Using Word Probability Based Semantic Similarity

— Due to growing amount of data and comparatively less amount of information on web, it becomes necessary to introduce a mechanism that can easily search out relevant information from that bulk of data. This mechanism is called text summarization. The whole document is condensed to a smaller version retaining its original meaning. This can be done by two approaches, first is extractive technique and second is abstractive technique of summarization. In extractive summarization technique the important words , phrases , sentences are taken out to make a summary , while abstractive summarization technique is based on the understanding of whole text and then the summary is created by sentence synthesis . There are several methods of extractive summarization but this paper will focus on the Frequent term summarization by considering the semantic similarity of its words as well . The primary purpose of using the combination of two techniques is to remove the limitations of them and to use their best feature to serve the purpose.
One-Dimens iona l Flow Mode l s in Intake and Exhaust Sys tems of Internal Combust ion Engines

K e y w o r d s B o u n d a r y condition, Euler equations, Chebyshev collocation, Homotopy continuation. 1. I N T R O D U C T I O N A fundamental part in wave action models to internal combustion engine design is the flow calculus in ducts. This flow is assumed one-dimensional and it depends on two variables, time and only one space variable. With this simplification, the solution of the problem is the solution of a nonlinear differential system. In the absence of outside forces, the flow is supposed homoentropic and the system can be written as [1] '[=] ' [ . 0-7 + ~ p+p~ (1)
Fatty acid profile of an oleaginous endophytic Pseudofusicoccum sp. Isolated from Annona muricata

This study was carried out to determine the fatty acid composition of secondary metabolites produced by a lipid-producing endophytic fungus Pseudofusicoccum sp. The fungus was isolated from the leaves of Annona muricata growing in Ifite Dunu, Anambra State, South-East Nigeria. Solid state fermentation was carried out using rice medium and the metabolites were extracted with ethyl acetate. The crude ethyl acetate extract was subjected to vacuum liquid chromatography (VLC), and the fatty acid profiles of the resulting oleaginous fractions were analyzed using gas chromatography-mass spectroscopy (GC-MS). GC-MS analysis of the fractions revealed the abundance of both saturated and unsaturated fatty acids. Ethyl palmitate (17.31%) was the most abundant compound in F1; while bisabolol (11.45%), ethyl oleate (12.73%), and palmitic acid (22.22%) were predominant in F2. These compounds have been reported to show beneficial biological properties with potentials for pharmaceutical and industrial applications.
Speech Controlled Wireless Elevator System

: Elevators are controller devices that uses switch mechanism for operation. Either the person desires to go in down or upward direction uses the keypad or even for an emergency stop or to open & close the elevator door. In today’s life we can find vast variety of apartment complex crowded in close by location with multi storage building capacity. This project better fits for blind, paralyzed and physically challenged individuals, as well as regular individuals to move from one floor to other without the use of switches. The essential cause of designing this system is to perform elevator operation via voice instructions. Speech recognition system is the crucial part of the project. The speech recognition of the elevator system allows the communication mechanism between the user and the Arduino based mechanism.
SMART COUNTRYSIDE for the 21 CENTURY

s of the 7 Moravian Conference on Rural Research EURORURAL ́ 20 SMART COUNTRYSIDE FOR THE 21ST CENTURY Editors: Jana Zapletalová, Antonín Vaishar Publisher: Mendel University in Brno, 2020 The authors are responsible for the content of their texts Recommended citation: Zapletalová, J. and Vaishar, A. , eds. (2020): Smart Countryside for the 21 century. Brno: Mendel University in Brno. ISBN: 978-80-7509-729-3 Smart Countryside for the 21st Century _______________________________________________________________________________
THERMODYNAMIC AND THERMO ECONOMIC ANALYSIS OF ORGANIC RANKINE CYCLE WITH MULTI-OBJECTIVE OPTIMIZATION FOR WORKING FLUID SELECTION WITH LOW- TEMPERATURE WASTE SOURCES IN THE INDIAN INDUSTRY

Sustainability and environmental protection have become an important issue in the energy-intensive industry. Driven by this, targets have been set to reduce the dependency on fossil fuels for lowering the carbon dioxide emission and sustainable energy use. In India, low-grade waste heat (less than 400 °C) is an extensive opportunity in increasing the energy efficiency for the industry. The Organic Rankine cycle (ORC) and Regenerative-ORC are considered as promising technologies to recover the low-grade industrial waste heat. In this work, fifty-two potential working fluids were screened for ORC and RORC system. A multi-objective optimization was performed for thermodynamic (exergy efficiency) and thermo-economic performance (levelised energy cost) using Non-dominated Sorting Genetic algorithm (NSGA-II). Optimal compromise solutions were obtained from Pareto frontiers (as obtained from NSGA-II) by assigning normalized weighted score to every point and selecting the minimum value point for each of the fifty-two potential working fluids. Based on the selected optimal solution, the efficiency of the cycle and total plant set-up cost was determined. Following this methodology, results show that Benzene and Toluene performed best among the fifty-two selected working fluids for the preselected cycle’s thermodynamic parameters. The result also includes the calculated static investment payback period for the fluids.
The Impact of Guarantees on SMEs

This paper estimates the effect of guarantees provided to SMEs by the Mutual Guarantee Societies (SGRs) on access to credit and firm performance in Argentina between 2010 and 2016. SGRs provided SMEs with guarantees to discount deferred payment checks in the stock market and guarantees to obtain long term loans in the financial sector. Using administrative data for the whole population of firms in Argentina for the period 2007-2017 and combining propensity score matching with fixed effects, we find that both instruments increased the probability of SMEs having a loan from a financial institution. In terms of performance, our results show that while firms that received financial guarantees increased their survival probability and created more jobs, firms that only received guarantees for the discount of checks increased their survival probability but did not create more jobs. JEL Classification: G21, G23, J21, O16.
Did the Children Behave?: Investigating the Relationship Between Attachment Condition and Child Computer Interaction

This work investigates the interplay between Child-Computer Interaction and attachment, a psychological construct that accounts for how children perceive their parents to be. In particular, the article makes use of a multimodal approach to test whether children with different attachment conditions tend to use differently the same interactive system. The experiments show that the accuracy in predicting usage behaviour changes, to a statistically significant extent, according to the attachment conditions of the 52 experiment participants (age-range 5 to 9). Such a result suggests that attachment-relevant processes are actually at work when people interact with technology, at least when it comes to children.
FeetBack: Augmenting Robotic Telepresence with Haptic Feedback on the Feet

Telepresence robots allow people to participate in remote spaces, yet they can be difficult to manoeuvre with people and obstacles around. We designed a haptic-feedback system called "FeetBack," which users place their feet in when driving a telepresence robot. When the robot approaches people or obstacles, haptic proximity and collision feedback are provided on the respective sides of the feet, helping inform users about events that are hard to notice through the robot's camera views. We conducted two studies: one to explore the usage of FeetBack in virtual environments, another focused on real environments. We found that FeetBack can increase spatial presence in simple virtual environments. Users valued the feedback to adjust their behaviour in both types of environments, though it was sometimes too frequent or unneeded for certain situations after a period of time. These results point to the value of foot-based haptic feedback for telepresence robot systems, while also the need to design context-sensitive haptic feedback.
Geographic distribution of microsatellite alleles in geladas (Primates, Cercopithecidae): Evidence for three evolutionary units

The subspecific taxonomy and distribution of geladas (Theropithecus gelada Rüppell, 1835) remains uncertain. Recent molecular studies based on mitochondrial sequence data revealed a geographically structured, three‐deme population, suggesting that there are three evolutionary units of geladas. However, mitochondrial distributions do not always recover population relationships, particularly in taxa with a complex history of isolation and gene flow. We therefore analysed the nuclear genetic population structure of the global gelada population based on 20 microsatellite loci in 43 samples from across its geographic range. FST values, a STRUCTURE analysis and a principal coordinate analysis (PCoA) confirmed the three‐deme population structure corresponding to the mitochondrial population structure. Therefore, our analyses provide additional support for three evolutionary units in geladas, corresponding to (a) a northern (north of Lake Tana, primarily in the Simien Mountains, previously classified as Theropithecus gelada gelada Rüppell, 1835), (b) a central (between Addis Ababa and the highlands east of Lake Tana, previously classified as Theropithecus gelada obscurus Heuglin, 1863) and (c) a southern (south of the Rift Valley, previously tentatively classified as Theropithecus gelada arsi Shotake et al., 2016, Anthropological Science, 124, 157) population. These results pave the way for future conservation decisions and highlight that the gelada population boundaries need more fine‐grained genetic sampling and phenotypic analyses, in particular for their taxonomic ranking.
Assessment of Heterogeneity of Cytochrome P450 Activity in Cancer-Cell Population by Cytometry of Reaction Rate Constant is Robust to Variation in Substrate Concentration

Enzymes of the cytochrome P450 (CYP) family catalyze the metabolism of chemotherapeutic agents and are among the key players in primary and acquired chemoresistance of cancer. The activity of CYP is heterogeneous in tumor tissues, and the quantitative characteristics of this heterogeneity can be used to predict chemoresistance. Cytometry of reaction rate constant (CRRC) is a kinetic approach to assess cell population heterogeneity by measuring rates of processes at the single-cell level via time-lapse imaging. CRRC was shown to be an accurate and robust method for assessing the heterogeneity of drug-extrusion activity catalyzed by ABC transporters, which are also key players in cancer chemoresistance. We hypothesized that CRRC is also a reliable method for assessing the heterogeneity of CYP activity. Here, we evaluated the robustness of assessing the heterogeneity of CYP activity by CRRC with respect to controlled variation in the concentration of a CYP substrate by comparing CRRC with non-kinetic approaches. We found that changing the substrate concentration by 20% resulted only in minimal changes in the position, width, and asymmetry of the peak in the CRRC histogram, while these parameters varied greatly in the non-kinetic histograms. Moreover, the Kolmogorov-Smirnov statistical test showed that the distribution of the cell population in CRRC histograms was not significantly different; the result was opposite for non-kinetic histograms. In conclusion, we were able to demonstrate the robustness of CRRC with respect to changes in substrate concentration when evaluating CYP activity at the single-cell level.
Recirculation of Giardia lamblia Assemblage A After Metronidazole Treatment in an Area With Assemblages A, B, and E Sympatric Circulation

Giardia lamblia is an intestinal protozoan subdivided into eight assemblages, labeled alphabetically from A to H. Assemblages A, B, and E infect humans and can have a sympatric circulation. We investigated the assemblage recirculation in children living within a high prevalence area of Giardia infection. One hundred and ninety-four children were evaluated and 85 tested positive for Giardia by PCR. These infected individuals were recruited, treated with metronidazole and then reexamined for infections at 20 and 40 days after treatment that included PCR and the genotyping was performed by sequencing beta-giardin and glutamate dehydrogenase gene targets. Giardia assemblages A (n = 43), B (n = 21), E (n = 17), and A/E (n = 4) were identified in infected children. Assemblage A was found in all reoccurrences of infection, including four that had been infected by assemblages B and E. Since both persistence and reinfection could account for the results, the level of nucleotide homology was determined before and after treatment. Most suggested that reinfections were by the same strain, but four presented a distinct genotypic profile. The results suggest that the differences in the genotypic profiles were due to reinfections, which appear to occur with frequency in high Giardia burden areas and soon after the end of therapy. It is not yet possible to define whether the recurrent cases were related to parasite resistance. However, the evidence of rapid reinfections and ready availability of treatment raises the potential for creating resistant strains. This highlights the need to address how Giardia burden is maintained within high prevalence areas.
The Two-Sided Effect of Leader Unethical Pro-organizational Behaviors on Subordinates’ Behaviors: A Mediated Moderation Model

Research suggests that unethical pro-organizational behavior (UPB) has two conflicting characteristics: unethical and pro-organizational. However, little attention has been paid to the negative and positive outcomes of UPB. Therefore, the present study aimed to fill this gap by examining a mediated moderation model on the effects of leader UPB on their subordinates’ behaviors. Based on social information processing theory and three-wave survey data from 204 supervisor-subordinate dyads in China, we found that the mixed relationships between leader UPB and subordinates’ behaviors were dependent on the leader’s Machiavellianism. Specifically, for high Machiavellian leaders, their UPB was positively related to subordinates’ unethical behaviors via subordinates’ moral disengagement. For low Machiavellian leaders, their UPB was positively related to subordinates’ organizational citizenship behaviors via their organizational identification. The theoretical contributions and practical implications of the findings are discussed.
Generation of a Recombinant Porcine Reproductive and Respiratory Syndrome Virus Stably Expressing Two Marker Genes

Porcine reproductive and respiratory syndrome virus (PRRSV) has been used as a gene expression vector in the development of vaccines. Most of these recombinant PRRSV vectors express only a single foreign gene through either an internal insertion in the hypervariable region of nsp2 or expression cassette and some of these recombinant vectors are genetically unstable. Here, we combined internal insertion in nsp2 and expression cassette methods to generate a novel recombinant PRRSV stably expressing the red fluorescence protein (RFP) and the green fluorescence protein (GFP) genes. Biological characteristic analysis of the recombinant PRRSV carrying the two marker genes, rGX-RFP-GFP, showed that it displayed similar growth kinetics and yet it yielded less infectious viruses when compared to the parental virus rGXAM. Co-expression of both the RFP and GFP was observed using confocal fluorescence microscopy when the rGX-RFP-GFP viruses infected MARC-145 cells. Furthermore, the PRRSV-based two-marker gene expression vector is genetically stable during 20 serial passages in MARC-145 cells. These data demonstrate that it is possible to express two interested immunogens from a single PRRSV vector.