bluuebunny/crossref_metadata_2025 huggingface dataset:
Engagement and Performance Studies of Media Agencies Publications on Social Networks
Authors: Kodad Mohcine
Published: September 2020

This paper presents a study that contributes to the existing work on the social diffusion and interaction strategy in social media. The aim is to know the most shared post by some electronic media in the world from end to end social network, and also to know post nature of the most successful one, and the link between different kind of interaction these are main objectives of this study. Our work is also considered as a ground and a base for social network analysis researchers in all social networks in order to allow them to benefit and help in their future research work from all information collected and results found via this study. An empirical analysis using multiple methods is conducted based on 275 Facebook publications gathered from the Facebook pages of 5 electronics journals the best one in its original country represented 5 countries in the world. This contribution discovered a set of important information and it is also projected to confirm hypothesis addressed in pre-existing studies
Big Data and Knowledge Resource Centre
Authors: Pandkar Sukhada Dinesh , Paatil Soochitra Dhananjay
Published: October 2020

The explosion of information has transformed libraries into knowledge resource centres. Explosion of information is in many forms, and it can be explored in terms of “big data”. Library professionals should be aware that using big data in resource management is a need of today's era. Management of big data in knowledge resource centre is a big challenge of librarianship. Knowledge resource centre includes information in multiple formats. Handling this information is sort of handling big data in knowledge resource centres. In this chapter, the authors discuss arrangement of big data to fulfill requirements of users effectively. The different segments of library including big data are explored. It discusses the various problems, challenges, and issues involved in big data of knowledge resource centres.
Landscape of Big Data Research in India
Authors: Bankar Ravindra Sopan , Lihitkar Shalini Ramdas
Published: October 2020

We all know that data has become a new fuel to the fast paced technology-driven world. And the academicians and researchers are doing their best for getting better into moulding the data-driven society to keeping it updated every day. Indian academicians and researchers are also doing their best in field of big data research studies. This chapter will focus the research landscape of big data research in India. This scientometric evaluation will let us know how India is going forward in this research area with some specific statistics in scientific community.
Making Literacy Culturally Relevant
Authors: Morphis Elizabeth , Yuan Ting
Published: October 2020

In this reflective chapter on culturally relevant teacher preparation, the authors begin by discussing early childhood literacy and how it has traditionally been conceptualized. They offer an overview of a balanced literacy model, including its history, structured development, and critiques. They then consider culturally relevant pedagogy as foundation to reconceptualizing early literacy and teacher preparation. To bring such reconceptualization to life, they share their work with early childhood pre-service teachers, aiming to reconceptualize early literacy. They conclude the chapter with suggestions for moving beyond balanced literacy in culturally relevant ways.
Entrepreneurial Needs for Outer Urban Co-Working Hubs
Authors: Arnoldi Emsie , Bosua Rachelle , Cooper Vanessa , Greenfield Cathy , Ch'ng Huck Ying
Published: September 2020

Workspaces and workplaces have changed significantly over the last decade. Facilitated by networking and collaboration tools, there has been a steady concentration of inner-city coworking spaces providing many opportunities for new flexible work arrangements. Driven by sustainability and creative entrepreneurship, coworking spaces are ideal hosting and meeting places to connect creative minds. Despite the growth in inner city coworking spaces, little is known of entrepreneurial needs for coworking models in outer urban city areas, particularly areas that experience rapid population growth. The authors conducted an exploratory study to identify entrepreneurs' coworking needs in a fast-growing outer urban city area in Melbourne, Australia. Drawing on activity theory (AT) as a lens to analyse the data, the study confirms that entrepreneurs in fast-growing outer urban areas have unique coworking needs compared to those in inner-city areas. The study identifies three key requirements that an outer urban coworking model needs to address to support a growing cohort of outer-urban anywhere workers.
International Teacher Education Network
Authors: Ramírez-Verdugo M. Dolores
Published: October 2020

This chapter presents an overview of the design and development of a research project aimed at setting the foundation of an international teacher education network to enhance teacher education from a transversal and interdisciplinary perspective. The network partnership explores the impact of applied educational technology, including digital and transmedia storytelling or augmented reality, to upgrade teacher education. This approach provides tailored training to equip lecturers, teacher trainers, pre- and in-service K-12 teachers, and students with specific competencies, skills, and strategies in instruction and assessment. This training also intends to raise their awareness of educational, social, sustainability, and environmental challenges. Within this framework, educational technology, language, and narrative genres become the articulatory axis of teaching and learning within bilingual and intercultural education contexts. This chapter also serves to define the scope and rationale for the edited volume.
Professional Support Networks in TESOL
Authors: Otcu-Grillman Bahar , Miller JungKang
Published: October 2020

This chapter investigates professional development for ESOL teachers and shows the importance of building systems of support for teachers through professional support networks and sociolinguistic perspectives. It aims to raise awareness about existing professional networks for the education of bilingual educators and ESOL teachers in NY. It introduces some initiatives at a NY college that address such challenges and make NYS's various professional networks accessible to candidates. The chapter suggests that it is important for college educators and teacher trainers to get the teacher-in-training more involved in working with professionals. Growing the professional network in multimodal ways would help create a sense of community and belonging in the profession of teaching ESOL students.
Digital Storytelling Project for Language Teachers
Authors: Chung Mi-Hyun
Published: October 2020

This chapter will present a model of a digital storytelling project that is designed to help language teachers experience what their students would go through in the digital storytelling process. The model will give teachers an opportunity to reflect on the experience and plan for the implementation of the digital storytelling in their teachings. The chapter discusses concepts of new literacy, semiotics, and technology for language learning, and importance of teacher perspectives in relation to the presented model. The discussion also reminds readers that the ultimate goal of the teacher digital storytelling project is to support authentic and meaningful learning of their students, including English language learners (ELLs) and bilingual students. The digital storytelling approach is used to acknowledge diversity and promote culturally responsive teaching in a language class. Reading, writing, and sharing personal narratives in the digital storytelling offer opportunities to ELLs or bilingual students to understand the context, make voices, and contribute to a learning community.
Financing Nascent Entrepreneurs by Reward-Based Crowdfunding
Authors: Bernardino Susana , Freitas Santos J. , Oliveira Silvie
Published: September 2020

A problem faced by nascent entrepreneurs is to attract outside capital to finance a new venture. A new promising funding mechanism created outside the banking system is crowdfunding (CF). The reward-based model of CF allows nascent entrepreneurs to capture funds from a large group of small investors through a campaign on the Internet. In return for the contribution of the backers, crowdfundees provide rewards (tangible items or services) or other types of incentives. However, in order to be successful a campaign must be designed according to a strategy that encompasses important steps. This study collects data from projects posted in the Indiegogo platform to identify the critical factors of a successful reward-based campaign. The results indicate that it is possible to find an explanation for the different levels of success of reward CF campaigns based on the analysis of the characteristics of the project (depth of the description, updates, and type) and its founders (own presentation, number of backers, team involved, and previous experience).
Academic Entrepreneurship in Portugal
Authors: Conceição Oscarina , Rodrigues Vanessa
Published: September 2020

It is important to understand the role of higher education institutions in promoting entrepreneurship and supporting the creation of new companies to commercialize the knowledge generated in the academic field. The objective of this chapter is to analyze the creation and survival of academic spin-off companies in Portugal from 2005 to 2015. The results show that financial crisis did not change the academic spin-offs dynamics patterns, which shows that, even in crisis period, academic spin-offs maintain creation high levels (perhaps due to necessity-driven) and reveal survival high rates. In addition, a questionnaire was carried out to obtaining the academic entrepreneur's perception about the entrepreneurial process (individual characteristics; organizational resources/capabilities and entrepreneurial orientation). In fact, these results can help policy makers to reflect on the motivations and difficulties of the entrepreneurial process of this type of companies, and thus, develop an effective regional policy agenda in supporting the academic spin-offs development.
Small Businesses Like a Sign of Innovation and Sustainable Development in the Community Tourism Centers in Santa Elena
Authors: Sarabia Molina Myriam Yolanda , García Espinoza Lupe Cecilia , Mendoza Tarabó Arnaldo Efrén
Published: October 2020

Small tourism enterprises play a key role in generating income and local development of a community in rural areas through community tourism (TC) ideas, services, processes, and products. These have been generated in the communities of San Pedro, Valdivia, Dos Mangas, and Sacachún from the province of Santa Elena, which deserve to be registered through empirical research. The results show that the population is interested in working towards the sustainable development of its natural and cultural resources. This interest is transforming the tourist activity in their responsible daily lives, and they are committed to caring for the environment. Therefore, the people's own lifestyles are highlighted in a scene of tranquility and harmony.
Challenges in English as a Foreign Language (EFL) Teaching and Learning Research
Authors: Felix Jonathan J.
Published: October 2020

A significant measure of pedagogical scholarship on English as a Foreign Language (EFL) higher education teaching and learning commonly prioritizes a ‘tips and tricks' approach to achieving positive student outcomes. Such often excludes or minimizes the active use of theory, being premised on problematic assumptions that can also potentially stagnate the field itself through circular reasoning. In this chapter, the author offers three considerations as a foundation for critical approaches to language teaching and learning. Firstly, the author acknowledges the performative and discursive capacity of language in shaping teaching and learning experiences; secondly, learners are positioned in this chapter as active agents in the learning process who have the potential to reinterpret or reject teaching and learning approaches; and finally, an argument is made for audience-specific teaching and learning practices using demographic data. To exemplify the application of these three considerations, Stuart Hall's Encoding-Decoding Theory serves as a key theoretical framework in this chapter, in conceptualizing critical approaches to teaching Generation Z learners.
Metaheuristics Approaches for the Travelling Salesman Problem on a Spherical Surface
Authors: Sahin Yusuf , Aydemir Erdal , Karagul Kenan , Tokat Sezai , Oran Burhan
Published: October 2020

Traveling salesman problem in which all the vertices are assumed to be on a spherical surface is a special case of the conventional travelling salesman problem. There are exact and approximate algorithms for the travelling salesman problem. As the solution time is a performance parameter in most real-time applications, approximate algorithms always have an important area of research for both researchers and engineers. In this chapter, approximate algorithms based on heuristic methods are considered for the travelling salesman problem on the sphere. Firstly, 28 test instances were newly generated on the unit sphere. Then, using various heuristic methods such as genetic algorithms, ant colony optimization, and fluid genetic algorithms, the initial solutions for solving test instances of the traveling salesman problem are obtained in Matlab®. Then, the initial heuristic solutions are used as input for the 2-opt algorithm. The performances and time complexities of the applied methods are analyzed as a conclusion.
Gaze Behavior of Professional and Non-Professional eSports Players in FIFA 19
Authors: Bickmann Peter , Wechsler Konstantin , Rudolf Kevin , Tholl Chuck , Froböse Ingo , Grieben Christopher
Published: September 2020

In traditional sports like soccer or tennis, experts benefit from better anticipation abilities compared to novices through a more efficient gaze behavior. For electronic sports (eSports), this area is rather unexplored, although quick decision making, which is linked to gaze behavior, is considered fundamental in eSports. In this study, the gaze behavior of professional and non-professional eSports players (n=21, 23.4 ± 3.3 years) was recorded via eye-tracking in the sports simulation FIFA 19. Number, duration, and location of fixations were compared over an entire match and in offensive play situations. Except for fixation location, no significant differences were found. The players mainly fixated the same objectives regarding fixation number and duration, but professionals had significantly more fixations using the in-game radar and fixated off-ball teammates significantly shorter. Due to the limited results, gaze behavior does not seem to be a decisive factor for excellent performance in FIFA 19.
The Flipped Classroom's Effect on EFL Learners' Grammar Knowledge
Authors: Bulut Cem , Kocoglu Zeynep
Published: September 2020

The flipped classroom method has gained popularity in recent years with the idea that it is possible to use the time spent in classrooms more effectively by simply flipping the passive lecturing parts with the homework exercises. Accordingly, this article investigates the effectiveness of the flipped classroom in teaching grammar to EFL learners. A study was conducted with the participants of two English courses in a vocational school in Turkey. Results indicated that the flipped group achieved higher scores than the non-flipped group and that the difference between two groups was statistically significant. Hence, the factors that lie beneath this improvement are likely to be attributed to the teaching method, which is also supported by the answers given to a flipped classroom perception survey and a focus group interview.
Kinetics Study of the Digestion of Magnesium Chloride Dihydrate in a Molten Salt Electrolyte
Authors: Tawalbeh Muhammad
Published: September 2020

During the electrolytic reduction of magnesium, it is very important to understand the mechanism of the digestion of the magnesium chloride dihydrate granules in the molten electrolyte throughout the chlorination process. This work aimed to investigate the kinetics of this digestion process. The results showed that the granules digestion is happening in two stages. The first stage is very fast, hence, results in the formation of MgOHCl during the dehydration and the hydrolysis of magnesium chloride dihydrate in the interior of the granules. The kinetic results for the first stage was best modeled using shrinking core model where the surface reaction was the rate controlling step. The second stage was best modeled as a first-order homogenous reaction. The kinetic parameters for the two stages were determined along with the Arrhenius plots. The results of this kinetics study are essential for the mathematical modeling of the chlorination process of the magnesium chloride dihydrate granules.
Three-Disperse Magnetorheological Fluids Based on Ferrofluids Induced Modification of Sedimentation by Addition of Nanoparticles
Authors: Dassisti Michele , Brunetti Giovanna , Rizzuti Antonino , Mastrorilli Piero
Published: September 2020

The effect of mixing suspended nanoparticles into a bi-disperse magneto-rheological fluid on sedimentation phenomena is explored. A reference bi-disperse MRF has been modified using a ferrofluid containing magnetite nanoparticles of two shapes (spheres or hexagonal platelets) suspended in paraffin-oil as carrier fluid. The reference MRF was prepared with a mixture of two diameter sizes for the micrometric particles. The reference MRF was also prepared using two different grades of carbonyl-iron micrometric particles (herein these will be referred to as HARD and SOFT), which differ each other for their mechanical properties. The experiment monitored the evolution with time of the sediment-supernatant interface. This experiment showed that the presence of nanoparticles (particularly the spherical ones) slows down the sedimentation effects in terms of ratio and rate, independently of the other characteristics of the fluid. This study also showed that fluids based on SOFT carbonyl iron powders, in presence of nanospheres, are more stable than HARD carbonyl iron powder based fluids, since their sedimentation rate slows down in the long term. At the same time, HARD particle-based magnetorheological fluids show smaller sedimentation ratios than SOFT based fluids.
Performance Evaluation of a Novel Hydrophobic Membrane Used in a Desalination System: A Comparison between Static and Moving Configurations
Authors: Ahmad Darem , Presswell Roy , Jouhara Hussam
Published: September 2020

Water scarcity is growing and in particularly in regions where population is high. It is estimated by world wild life organization that two thirds of human population may face water shortage by 2025. However, the amount of water available on earth covers approximately two thirds of the total surface area, but most of the water is seawater. Seawater cannot be used for any human use due to the high salinity levels. Desalination processes have been implemented on various scales whereby reverse osmosis is the most successful. However, such system is too complex and expensive. An alternative system utilizing humidification-dehumidification process for desalination is proposed in this paper. The process involves the use of a novel hydrophobic membrane allowing the humidification. Two configurations have been tested in a closed loop cycle, namely: static and moving membrane. The results from the experiments have shown that the efficiency of the moving membrane configuration is higher than the static by 46%. And based on 1 Litre brine feed, 50% of the volume has been successfully desalinated.
The Photoelectric Behavior and Antimicrobial Effect of Titanium Dioxide Deposition for Dental Implants
Authors: Alami Abdul Hai , Moufti Mohammad-Adel , Hamad Mohammad , Aokal Kamilia , Abu Hawili Abdullah , Naji Rawand , Faraj Mohammed
Published: September 2020

This work presents a pilot study on the photoelectric effect of anatase titanium dioxide (TiO2) deposited on grade 4 titanium discs on their antimicrobial properties, especially for dental implants applications. The prepared specimens are characterized by X-ray diffraction and Raman spectroscopy to ensure a homogenous coverage of the TiO2 material on the discs. The samples were further tested to outline the photoelectric response of titanium dioxide to ultraviolet radiation in the form of electrical current within the discs. Six discs (three bare Ti, and three coated with TiO2) were seeded with a 5 μl of Escherichia coli culture. One disc of each group was subjected to the same UV light source used for the opto-electrical analysis for 0, 1 or 5 minutes. Bacteria on the discs were then harvested and incubated to examine number of viable cells. The obtained electrical properties confirmed the suitability of the surface-coating to provide simultaneous oxidation-reduction driven reactions under the photoinduced catalytic activity. This activity highlighted the benefits of the added TiO2 layer in reducing the numbers of active E-Coli bacteria in a microbial setup by as much as 21% after 5 minutes of UV exposure. This photoelectrical effect has a profound impact on the development of an in-situ oral disinfectant material deposited on titanium-based dental implants.
Influenza A virus H1N1 associated pneumonia - acute and late aspects evaluated with tomography high resolution in hospitalized patients
Authors: Asvolinsque Pantaleão Fontes Cristina , Sarmet Moreira Damas dos Santos Alair Augusto , Artimos de Oliveira Solange , Abdon Aidê Miquel
Published: September 2020

Background: Influenza A (H1N1) virus often compromises the respiratory tract, leading to pneumonia, which is the principal cause of death in these patients. The purpose of this study was to review the acute and late phase pulmonary findings in influenza A(H1N1) associated pneumonia using high resolution computed tomography (HRCT), and to determine the importance of performing end expiration series. Methods: Between July and August 2009, 140 patients presented with influenza A (H1N1) confirmed by real-timepolymerase chain reaction. Out of these, 27 patients underwent HRCT in the acute and late phases of pneumonia, allowing for a comparative study. Late phase exams were performed due to clinical worsening and up to 120 days later in patients with persistent complaints of dyspnea.Results: Ground glass opacities, consolidations, and the combination of both were associated with the acute phase, whereas persistence or worsening of the lesions, lesion improvement, and air trapping in the end expiration series (as seen using HRCT, n=6) were observed in the late phase.Conclusions: In the HRCT end expiration series, air trapping was found in the late phase of H1N1 associated pneumonia. Generally, these exams are not evaluated in research articles, and air trapping has not previously been studied using the end expiration series. Our study brings more scientific knowledge about aspects of pulmonary involvement by influenza A (H1N1), through evaluation with end expiration series, which makes the CT exam dynamic, translating the respiratory movement, and showing bronchial alteration.
Lumbar Multifidus Muscle Characteristics, Body Composition, and Injury in University Rugby Players
Authors: Lévesque Jérome , Rivaz Hassan , Rizk Amanda , Frenette Stephane , Boily Mathieu , Fortin Maryse
Published: October 2020

Context

A smaller lumbar multifidus (LM) muscle was reported to be a strong predictor of lower limb injury in professional Australian Football League players. However, despite the high prevalence of low back pain (LBP) and lower limb injury in rugby players, their LM characteristics have yet to be explored.

Objective

To (1) examine LM characteristics in male and female university rugby players and their possible associations with LBP and lower limb injury and (2) investigate the relationship between LM characteristics and body composition in this group of athletes.

Design

Cross-sectional study.

Setting

University research center.

Patients or Other Participants

Thirty-four university rugby players (20 women, 14 men).

Main Outcome Measure(s)

Ultrasound measurements of LM cross-sectional area (CSA), thickness, and percentage change in thickness during contraction were obtained bilaterally, at the L5-S1 level, in prone and standing positions. Body composition measures were obtained using dual-energy x-ray absorptiometry. Self-reported questionnaires were used to obtain LBP and lower limb injury history.

Results

Players who reported LBP in the previous 3 months showed a smaller percentage change in thickness during contraction in the standing position (F = 5.21, P = .03). The LM CSA side-to-side asymmetry (right versus left) was greater in players who reported having a lower limb injury in the previous 12 months (F = 4.98, P = .03). The LM CSA was significantly associated with body composition measurements. A greater percentage change in thickness during contraction was significantly associated with a lower percentage of body fat. The LM echo intensity was strongly associated with the total percentage of body fat and was significantly greater in women.

Conclusions

The influence of body composition on LM morphology in athletes cannot be ignored and warrants further investigation. Our findings also provide preliminary evidence of an association among LM morphology, LBP, and lower limb injury in university rugby players.
The Effect of Feedback on Manual Therapy Skill Acquisition: A Systematic Review
Authors: Chang Isaac , Rivera Matthew J. , Eberman Lindsey E.
Published: October 2020

Objective

To investigate the influences of feedback on manual therapy skill acquisition as presented in the literature.

Data Source(s)

An electronic search was conducted across 4 databases: PubMed, EBSCOhost, SPORTDiscus, and CINAHL. The key words that were used in the search included manual therapy, physiotherapy, mobilizations, manipulation, education, instruction, feedback, intrinsic feedback, and extrinsic feedback. The Boolean phrases AND and OR were used to combine the search terms.

Study Selections

Studies that collected outcomes related to manual therapy skill acquisition from inception of the databases to September 2019 were included. Studies were excluded if they examined solely patient-rated or clinical outcomes of manual therapy or did not use feedback as the primary instructional intervention.

Data Synthesis

After quality appraisal with the Joanna Briggs Institute Critical Appraisal Checklist for Quasi-Experimental Studies, the articles included in the review were categorized according to generalized manual therapy skills. Joint distraction/traction was the skill examined in 2 studies. The effect of feedback on joint mobilizations was investigated in 5 studies. Studies examining joint manipulations represented the largest portion of the articles in this review, with 11 total studies being included. The primary forms of feedback that were examined in the literature included visual, verbal, and combined forms of auditory and visual feedback.

Conclusion(s)

Visual feedback that provides learners with graphical representations of their performance, such as force-time relationships, appear to have the greatest effects in improving force-related parameters. Visual feedback can be useful during the initial acquisition phases of manual therapy skills, as indicated by the concentration of significant findings immediately after use in training sessions. A limited number of studies examining outcomes at long-term follow-up reported that training effects decrease rapidly over time. Thus, future studies should investigate if optimal dosages or scheduling strategies exist to increase the retention of effects.
COVID-19 pandemic from an ophthalmology point of view
Authors: Gupta Parul Chawla , Kumar M Praveen , Ram Jagat
Published: October 2020

Coronavirus disease 2019 (COVID-19) is caused by a highly contagious RNA virus termed as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Ophthalmologists are at high-risk due to their proximity and short working distance at the time of slit-lamp examination. Eye care professionals can be caught unaware because conjunctivitis may be one of the first signs of COVID-19 at presentation, even precluding the emergence of additional symptoms such as dry cough and anosmia. Breath and eye shields as well as N95 masks, should be worn while examining patients with fever, breathlessness, or any history of international travel or travel from any hotspot besides maintaining hand hygiene. All elective surgeries need to be deferred. Adults or children with sudden-onset painful or painless visual loss, or sudden-onset squint, or sudden-onset floaters or severe lid oedema need a referral for urgent care. Patients should be told to discontinue contact lens wear if they have any symptoms of COVID-19. Cornea retrieval should be avoided in confirmed cases and suspects, and long-term preservation medium for storage of corneas should be encouraged. Retinal screening is unnecessary for coronavirus patients taking chloroquine or hydroxychloroquine as the probability of toxic damage to the retina is less due to short-duration of drug therapy. Tele-ophthalmology and artificial intelligence should be preferred for increasing doctor-patient interaction.
Clinical management of COVID-19
Authors: Varghese George M. , John Rebecca , Manesh Abi , Karthik Rajiv , Abraham O.C.
Published: October 2020

The novel coronavirus disease 2019 (COVID-19) with its early origin from Wuhan city in China has evolved into a global pandemic. Maximal precautionary measures and resources have been put forward by most nations in war footing to mitigate transmission and decrease fatality rates. This article was aimed to review the evidence on clinical management and to deal with the identification of high-risk groups, warning signs, appropriate investigations, proper sample collection for confirmation, general and specific treatment measures, strategies as well as infection control in the healthcare settings. Advanced age, cardiovascular disease, diabetes, hypertension and cancer have been found to be the risk factors for severe disease. Fever lasting for >five days with tachypnoea, tachycardia or hypotension are indications for urgent attention and hospitalization in a patient with suspected COVID-19. At present, reverse transcription-polymerase chain reaction (RT-PCR) from the upper respiratory tract samples is the diagnostic test of choice. While many drugs have shown in vitro activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), there are insufficient clinical data to promote or dissuade their usage. Among the currently available drugs, hydroxychloroquine and lopinavir/ritonavir may be considered for patients with severe COVID-19 infection, awaiting further clinical trials. Stringent droplet and contact precautions will protect healthcare workers against most clinical exposures to COVID-19.
Robust Development of Electric Powertrain NVH for Compact Electric SUV
Authors: Ha Tae-Won , Huh Jin-Wook , Choi Sang-Kyu , Min Dong-Wook , Chae Chang-Kook , Abdy Annabel , Schmitt Carsten , Mahmoud Hanafy , Jain Sharad , Rodrigues Leon
Published: October 2020

Electric vehicles (EV’s) present new challenges to achieving the required noise, vibration & harshness performance (NVH) compared with conventional vehicles. Specifically, high-frequency noise and unexpected noise phenomenon, previously masked by the internal combustion engine can cause annoyance in an EV. Electric motor (E-motor) whine noise caused by electromagnetic excitation during E-motor operation is caused by torque ripple and radial excitation. Under high speed and high load operating conditions, the overall sound level may be low, however high frequency whine noise can impair the vehicle level NVH performance. An example of a previously masked unexpected noise phenomenon is a droning noise that can be caused by manufacturing quality variation of the spline coupling between the rotor shaft of the E-motor and the input shaft of the reducer. It is dominated by multiple higher orders of the E-motor rotation frequency.

In this study, the high speed and high load condition whine noise problem was reproduced through electromagnetic and structural analysis. The countermeasures (E-motor geometry refinements to reduce the excitations and mechanical system transfer path modifications to reduce the vibration response) were defined and the effects investigated. Mechanical system modification to improve NVH performance without increasing the mass is challenging. However, E-motor air-gap geometry optimization, such as slot opening modulation and rotor notch modifications achieved significant noise reduction without critical trade-off of other performance.

This paper also describes the basic improvement plan proposed through the simulation of the droning noise behavior. The main two manufacturing errors (pitch error in the spline coupling and the alignment error between the rotor and the gearbox shafts) that are responsible for the unexpected droning noise were identified. Using simulation it was shown that the droning noise can be reduced through improved quality control and tolerance design optimization of factors such as axis self-alignment and spline gear tooth quality.
Characterization of Brake Creep Groan Vibrations
Authors: Fischer Peter , Pürscher Manuel , Huemer-Kals Severin , Prezelj Jurij
Published: October 2020

Creep groan is an annoying brake noise at very low speeds of the vehicle. In
general, stick-slip between brake disk and brake pads is believed to be the most
dominating vibration mechanism of creep groan phenomena. This paper will show by
sophisticated measurement techniques that stick-slip and speed-dependent
friction is an important trigger. However, the overall vibration is much more
complex than stick-slip reproduced by simple conveying belt minimal models. It
turns out that in typical brake systems of passenger cars, creep groan appears
from 15 to 25 Hz as well as 60 to 100 Hz. The mechanism from 15 to 25 Hz is
highly impulsive and “hard”. Transitions between stick and slip phases trigger
coupled nonlinear vibrations of the complete brake and suspension system. From
60 to 100 Hz, the vibrations show a more harmonic-like and “soft” signature,
caused mainly by a speed-dependent friction behavior. Basically, the growth of
self-excited vibrations is stimulated by flexibilities in the suspension
bushings as well as elastic deformations of suspension parts, wheel and tire.
For practical vehicle operating conditions, the frequency range from 60 to100 Hz
is the most relevant one. The 15 to 25 Hz nonlinear vibrations are frequently
not detected, because these creep groan phenomena require high brake pressures.
This fact often leads to inappropriate model reductions, focusing on the
pads-disk subsystem for a simulation of just one vibration state. To completely
address the physical nature of the vibrating system, large-scale models of the
entire suspension system - including wheel, brake, link arms and bushings - are
used within this work. Thus, existence and properties of bifurcating vibration
states are revealed and the study of “hard” and “soft” creep groan
characteristics is possible.
Lexicons, Literacies and Design Futures
Authors: Morrison Andrew , Bjørnstad Nina , Martinussen Einar Sneve , Johansen Bjørn , Kerspern Bastien , Dudani Palak
Published: October 2020

As the world in which we live becomes more complex and contested, economically and politically but also in terms of rapid and long-lasting environmental change, design education faces new demands and challenges. We frame and situate these in terms of what we call “design futures literacies.” At stake in such a framing is a rethinking of design’s priorities in the context of climate change and resource use and reuse in futures that are uncertain, contingent and emergent. The article positions design as having shifted away from a techno-modernist design solutionism and to how it may engage in shaping futures through experimentation and exploration in the critical and productive engagement with techno-cultural life. These arguments are located within the prior experience of the transdisciplinary team of co-authors as well as a European level project between four leading design universities. The article takes up their first work package on the co-creation of a Lexicon for Design Futures Literacies and early experimentation towards generating resources and experience for its wider use. The article addresses the largely under articulated relations between language and design (from lexis to discourse). First, we present the development of an alphabetic, lexical semantic set and core grouping of design and futures terms. This vocabulary, drawn from a range of sources and experiences, is linked to the design of a related lexically centred card game. Second, the focus on vocabulary was extended to a section on situating lexis in cultural historical contexts, 3-dimensional haptic form giving and the language of abstraction. This was achieved via reference to a design narrative fiction experiment on emerging technologies and a historical costume annotation project as a prompt for making connections between items from the lexicon and modelling abstract forms in clay. Third, in collaboration with a government ministry and a design council, students developed four future digital urban living scenarios with trust as their central focus. “Languaging” the future was embodied in physical scenarios open to the public, connected to a professional seminar and to international research events where verbal descriptions, explanations and reflections were voiced by the students alongside their educator-researcher. The article closes with suggestions that there is further opportunity for attention to lexis and multimodal discourse modes in shaping design futures literacies, within and across the project but also in practice, in policy and for and as design pedagogy.
Design Futures Now: Literacies & Making
Authors: Clèries Laura , Morrison Andrew
Published: October 2020

This issue of Temes de Disseny addresses a mix of topics concerning how design literacies and design making may be understood as ‘future facing’. By doing so, we convey the ways and means design practice and design education may be positioned and activated to work prospectively and be ahead of current concerns with environmental, social and ethical challenges. Doing so also means tackling tough, complex and often unknown problems and offering potential and imaginary responses. Accordingly, tools and techniques originating in futures studies intertwine with design practices offering exploratory, methodological and anticipatory work on how we might shape our futures through design together. Literacies as design futures making and making futures literacies by design are therefore featured in this special issue of the journal.
The creative work of Grigory Gurkin and Vasily Sheshunov as students of Ivan Shishkin
Authors: Filippova O.N.
Published: October 2020

The article contains a comparative analysis of the work of two artist-students of I.I. Shishkin: Grigory Gurkin (Altai) and Vasily Sheshunov (Far East). Both painters went through the school of the great Russian landscape painter at the Imperial Academy of Arts in St. Petersburg. Grigory Gurkin became one of the most significant masters of Russian realistic landscape in the first third of the 20th century, the first professional artist of Altai. Vasily Sheshunov had an equally significant influence on the formation of the artistic life of Ussuriisk and the entire Primorye. In the context of the continuity of Ivan Shishkin's art school, the genre-thematic originality, artistic manner, and creative method of these two masters are compared for the first time. The material for the study was the paintings of artists from the collections of the Sukachev Irkutsk Regional Art Museum, the Primorye State Art Gallery, the State Art Museum of the Altai Krai, the Tomsk Regional Art Museum.

Статья посвящена сравнительному анализу творчества двух художников-учеников И.И. Шишкина: алтайского — Г.И. Гуркина и дальневосточного — В.Г. Шешунова. Оба живописца прошли школу великого русского художника-пейзажиста в Императорской Академии художеств в Санкт-Петербурге. Григорий Иванович Гуркин стал одним из самых значительных мастеров русского реалистического пейзажа первой трети XX века, первым профессиональным художником Алтая. Василий Григорьевич Шешунов оказал столь же существенное влияние на становление художественной жизни Уссурийска и всего Приморья. В контексте преемственности художественной школы И.И. Шишкина жанрово-тематическое своеобразие, художественная манера, творческий метод этих двух мастеров сравниваются впервые. Материалом для исследования послужили живописные полотна художников из собраний Иркутского областного художественного музея им. В.П. Сукачева, Приморской государственной картинной галереи, Государственного художественного музея Алтайского края, Томского областного художественного музея.
Las políticas públicas y el fortalecimiento de los emprendimientos en Jipijapa-Ecuador
Authors: Delgado Gutiérrez Zoila Mariana , Vázquez Ponce Gary Orlindo , Baque Morán Amparo Bienvenida , Ayón Ponce Gino Iván , Ponce Baque Jenniffer Adriana
Published: October 2020

Hoy en día el emprendimiento ha tomado un rol muy importante y se convierte en un tema de gran relevancia para el desarrollo de planes, programas y proyectos, cuya finalidad es crear nuevas empresas y negocios en la Zona Sur de Manabí, desde esta perspectiva se potencia la economía de un país. La metodología utilizada fue una investigación exploratoria-descriptiva, se utilizó como herramientas de trabajo la encuesta y la entrevista a expertos en el tema. Los resultados demuestran algunas debilidades en los emprendimientos desarrollados por las políticas públicas a través del Gobierno Autónomo Descentralizado del cantón Jipijapa. El emprendimiento, no solo es de ideas, es de creatividad e innovación, es como un abanico de negocio generada por las políticas públicas, para el fomento y desarrollo de las micro, pequeñas y medianas empresas, que fortalece la competitividad, asociatividad y encadenamiento productivo, en aras de contribuir al crecimiento y desarrollo económico del país.
Sur la présence d’Andrena binominata Smith, 1853 (Hymenoptera, Andrenidae) et de Nomada duplex Smith, 1854 (Hymenoptera, Apidae) en France
Authors: Aubert Matthieu , Dufrêne Éric , Genoud David , Scheuchl Erwin , Schwarz Maximilian
Published: October 2020

On the presence of Andrena binominata Smith, 1853 (Hymenoptera, Andrenidae) and Nomada duplex Smith, 1854 (Hymenoptera, Apidae) in France. - The bees Andrena (Carandrena) binominata Smith, 1853 and his supposed cuckoo Nomada duplex Smith, 1854 are reported from the surroundings of Perpignan (Pyrénées-Orientales, France) for the first time and some observations made on the field in 2010 are presented. Furthermore, the geographic distribution of both species is synthesized and illustrated with a map. The new data are also discussed with an emphasis on conservation biology.
PENYUSUNAN MATERI PEMBELAJARAN QAWAID NAHWIYAH DALAM KITAB AL-JURUMIYAH
Authors: Gunawan Heri , Suhartini Andewi , Nurshobah Asep , Rifa'i Ilyas
Published: October 2020

Bahasa Arab tanpa ilmu nahwu tidak dapat dimengerti. Kitab Jurumiyah, merupakan satu kitab rujukan dalam pembelajaran qawaid (tata bahasa Arab) yang biasa digunakan pesantren. Semua santri diharuskan mempelajari gramatika bahasa Arab sebagai dasar kemampuan bagi mereka dalam membaca kitab-kitab kuning yang menjadi rujukan dalam pembelajaran di pesantren. Fokus penelitian ini berkenaan dengan penyusunan materi pembelajaran qawaid dalam kitab Jurumyiah. Penelitian ini bertujuan untuk mendeskripisikan susunan materi pembelajaran qawaid nahwiyah dalam kitab al-Jurumiyah yang ditulis oleh Ibnu Jurum atau dikenal Ash-Shanhaji. Penelitian ini adalah penelitian kualitataif deskriptif dengan menggunakan metode analisis isi. Hasil penelitian menunjukan bahwa kitab Jurumiyah termasuk dalam kelompok jenis materi yang bersifat konseptual. Penyusunan materinya telah sesuai dengan prinsip-prinsip pengembangan materi dan adaptable dengan perubahan paradigma pembelajaran yang menekankan pada keaktipan siswa (santri) yang mempelajarinya.
Intereses y tendencias de la educación musical hoy: un estudio a partir de sus revistas científicas
Authors: Porta Amparo
Published: October 2020

La difusión de la educación musical es el lugar público de encuentro de la innovación y la investigación, y por ello su mejor escaparate científico. Este espacio supone, igualmente, una síntesis de las aspiraciones de los trabajos realizados, proyectos y tendencias, y la razón de que haya sido elegido como base de este trabajo. Su difusión es su mejor escaparate científico y una síntesis de sus aspiraciones, aportaciones y tendencias, sin embargo, se encuentran pocos trabajos que la estudien. Este artículo se interesa por la especificidad de la educación musical, sus relaciones con la interdisciplinariedad y también sus diferentes aproximaciones metodológicas como elemento determinante. El objetivo es analizar sus intereses en revistas científicas especializadas y artículos publicados en una muestra. Para ello se han estudiando las palabras clave de los artículos  seleccionados y líneas editoriales de las revistas a que pertenecen. Se han realizado 3 análisis de contenido a 7 revistas nacionales e internacionales de Educación musical y analizando 148 artículos para conocer sus dominios, tendencias, especificidad y aproximaciones metodológicas. Los resultados dan cuenta de los temas de interés destacados de las revistas y también de sus autores, mostrando así sus cuatro grandes áreas temáticas: Investigación, Formación, Contenidos y Práctica Musical como elementos centrales de sus intereses. El artículo termina mostrando, un estudio de dispersión y líneas de tendencias señalando la posición tanto de los autores como de las revistas en este juego de fuerzas que cobran visibilidad y sentido al establecer comparaciones entre ellas.
¿La metodología Flipped Classroom contribuye a crear un aprendizaje significativo?
Authors: Escrig-Tena Ana-Belén , Segarra-Ciprés Mercedes , Badoiu Alexandra , García-Juan Beatriz
Published: October 2020

En las últimas décadas se ha tratado de impulsar un cambio metodológico en la enseñanza universitaria desde una enseñanza centrada en la actividad del profesorado a otra orientada al aprendizaje del estudiantado. Así, en nuestra labor como docentes debemos ser capaces de seleccionar correctamente las acciones que emprendemos en el contexto de la asignatura, con la intención de que el estudiantado logre un aprendizaje profundo y comprensivo, y no tan sólo el procesamiento superficial de la información. Para ello es esencial fomentar actividades de aprendizaje que promuevan el papel activo del estudiantado, en las cuales “no se pueda escapar de aprender”. En este sentido se han llevado a cabo experiencias en el aula teniendo en cuenta la denominada “clase al revés” (Flipped Classroom), la cual precisamente pretende fomentar el aprendizaje activo, colaborativo y la resolución de problemas. El propósito de este trabajo es valorar en qué grado los estudiantes perciben que han conseguido un aprendizaje significativo en el contexto de una asignatura en la que se ha seguido la metodología de la Flipped Classroom, así como valorar su satisfacción con la asignatura. Los resultados obtenidos proporcionan orientación al docente sobre la efectividad de las nuevas metodologías docentes en el proceso de aprendizaje