Search results
1 – 10 of 50Vipin Gupta, Barak M.S. and Soumik Das
This paper addresses a significant research gap in the study of Rayleigh surface wave propagation within a piezoelectric medium characterized by piezoelectric properties, thermal…
Abstract
Purpose
This paper addresses a significant research gap in the study of Rayleigh surface wave propagation within a piezoelectric medium characterized by piezoelectric properties, thermal effects and voids. Previous research has often overlooked the crucial aspects related to voids. This study aims to provide analytical solutions for Rayleigh waves propagating through a medium consisting of a nonlocal piezo-thermo-elastic material with voids under the Moore–Gibson–Thompson thermo-elasticity theory with memory dependencies.
Design/methodology/approach
The analytical solutions are derived using a wave-mode method, and roots are computed from the characteristic equation using the Durand–Kerner method. These roots are then filtered based on the decay condition of surface waves. The analysis pertains to a medium subjected to stress-free and isothermal boundary conditions.
Findings
Computational simulations are performed to determine the attenuation coefficient and phase velocity of Rayleigh waves. This investigation goes beyond mere calculations and examines particle motion to gain deeper insights into Rayleigh wave propagation. Furthermore, this investigates how kernel function and nonlocal parameters influence these wave phenomena.
Research limitations/implications
The results of this study reveal several unique cases that significantly contribute to the understanding of Rayleigh wave propagation within this intricate material system, particularly in the presence of voids.
Practical implications
This investigation provides valuable insights into the synergistic dynamics among piezoelectric constituents, void structures and Rayleigh wave propagation, enabling advancements in sensor technology, augmented energy harvesting methodologies and pioneering seismic monitoring approaches.
Originality/value
This study formulates a novel governing equation for a nonlocal piezo-thermo-elastic medium with voids, highlighting the significance of Rayleigh waves and investigating the impact of memory.
Details
Keywords
Verónica Cabezas, Sebastián Pereira, Catalina Figueroa and Camila Straub
The purpose of this study is to describe the perceptions of participants regarding a blended learning training course in Chile (and its e-learning adaptation due to the COVID-19…
Abstract
Purpose
The purpose of this study is to describe the perceptions of participants regarding a blended learning training course in Chile (and its e-learning adaptation due to the COVID-19 pandemic) for mentor teachers (MTs). The MT learns theoretical elements of mentoring and in parallel accompanies a newly qualified teacher while receiving support from an online tutor. Opinions are presented from MTs and accompanied teachers (ATs) about the contribution, format and methodology of the course.
Design/methodology/approach
A program evaluation with mixed methodology was used. Online questionnaires were sent to MTs and ATs at the end of the course. Returned questionnaires totaled 98 MTs and 20 ATs for the blended learning version and 75 MTs and 54 ATs for the e-learning format. In addition, 11 post-course interviews were conducted in three schools with MTs, ATs and their school leaders.
Findings
The course contributed to the development of mentoring skills. Participants highlighted the importance of the face-to-face component of both versions. The theoretical–practical methodology used was positively evaluated. Support and feedback provided to MTs by the online tutor was important for developing skills.
Research limitations/implications
Results are part of a case (n = 247), so general statements cannot be made about the population.
Practical implications
While this program evaluation focuses on a specific context, the results can contribute to the design of effective MT online training courses in other contexts and countries, given the limited body of research on this type of experience.
Originality/value
The course provided is described in detail, which may be useful when designing similar mentor education courses in other contexts.
Details
Keywords
This study aimed to investigate the sensemaking strategies employed by early-career employees working within organizationally constrained environments.
Abstract
Purpose
This study aimed to investigate the sensemaking strategies employed by early-career employees working within organizationally constrained environments.
Design/methodology/approach
Grounded in the sensemaking-as-accomplishment framework, a longitudinal multi-case study was conducted, involving three early-career employees. These participants were interviewed multiple times concerning tasks they themselves identified as anomalous and ambiguous.
Findings
The study's findings illuminate how early-career employees utilize sensemaking strategies to accomplish anomalous-ambiguous tasks. These strategies are interwoven with deliberate efforts to mitigate organizational constraints that exist in the organization or arise during the execution of complex tasks.
Research limitations/implications
Notable limitation pertains to the time gap between task completion and the interviews. Conducting real-time interviews concurrently with task execution or immediately afterward was not feasible due to constraints in participant availability. This research has implications for organizational learning initiatives, particularly those encompassing employee-driven self-learning components. Insights derived from studies like this can inform the development of effective self-learning schemes within organizations.
Originality/value
Previous sensemaking research focused on what takes place in high-reliability organizations. This study explored sensemaking strategies in workplaces that are organizationally constrained.
Details
Keywords
Martha Kakooza and Sean Robinson
As a workplace, Higher Education has long been spatially socialized as a heteronormative with counter spaces (LGBTQ resource centers) in which assumptions about an individual's…
Abstract
As a workplace, Higher Education has long been spatially socialized as a heteronormative with counter spaces (LGBTQ resource centers) in which assumptions about an individual's sexuality have been assumed as heterosexual or gay/lesbian pushing mononormativity. This study focused on the narratives of six bisexual faculty and staff to uncover how mononormativity is (re)produced in the workplace. We analyze the ways in which bisexual faculty and staff experience an unevenness of power in communicating their bi identity. We drew on Lefebvre's (1991) theory to understand how the social workplace is sexualized presenting our findings through an ethnodrama.
Details
Keywords
Robyn Lee, Faye Horsley and Annette McKeown
Previous qualitative research by Horsley (2020) and Lee (2019) highlighted the importance of self-concept (SC) in understanding fire use. This study, therefore, aims to further…
Abstract
Purpose
Previous qualitative research by Horsley (2020) and Lee (2019) highlighted the importance of self-concept (SC) in understanding fire use. This study, therefore, aims to further investigate the relevance of SC in non-criminalised fire use, with a view towards informing early interventions for firesetting prevention.
Design/methodology/approach
In this preliminary study, ten participants engaging in extensive, non-criminalised fire use were interviewed about their fire-related experiences and how this relates to SC. This was analysed using techniques informed by the grounded theory.
Findings
Three core categories were identified: control, identity and self-esteem, which provide a preliminary framework for understanding how SC and non-criminalised fire use are inter-related. The core categories relate to the study aim because they are conceptualised as three elements of SC, which are strengthened through interactions with fire. The mechanisms through which the categories relate to fire use and SC are discussed.
Practical implications
Forensic implications are discussed regarding early intervention and prevention. The authors argue that knowledge of non-criminalised fire use could provide a valuable blueprint for healthy fire use and, thus, feed into treatment and intervention. Given that previous research has highlighted the importance of SC in relation to how and why people interact with fire, the authors suggest that it should be given greater emphasis in clinical work with those thought to be at risk of firesetting.
Originality/value
To date, firesetting research has focused primarily on criminalised acts, i.e. arson. This paper adopts a different approach and explores how and why people engage with fire in healthy and adaptive ways.
Details
Keywords
Jenny Meggs, Susan Young and Annette Mckeown
Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental condition with community prevalence globally of 2%–7% (M = 5%; Sayal et al., 2018). Clinicians are…
Abstract
Purpose
Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental condition with community prevalence globally of 2%–7% (M = 5%; Sayal et al., 2018). Clinicians are routinely encouraged to explain to children and young people the benefits of a healthy lifestyle, including exercise (NICE NG87, 2018). Exercise has been proposed as a safe and low-cost adjunctive approach for ADHD and is reported to be accompanied by positive effects on several aspects of executive functioning (EF). The purpose of this narrative review was to synthesise the contemporary randomised control trial (RCT) studies that examine the effect of sport, physical activity and movement on EF in children and adolescents with ADHD.
Design/methodology/approach
A narrative review approach with a systematic literature search using PRISMA guidelines for screening and selecting relevant systematic reviews was used. The final review included four peer-review systematic reviews (>2019).
Findings
The results identified four RCT meta-analyses and findings showed that children and adolescents with lower baseline cognitive performance demonstrated greater improvements in functioning after physical activity interventions, particularly for tasks with higher executive function demands, where baseline performance reaches an optimal level. Findings suggest that 10–20 min of acute moderate-high-intensity exercise interventions (cycling/running) appeared to have positive effects on indices of inhibitory control. Preliminary evidence suggests that as little as 5 min of jumping exercises improved inhibitory control. Sixty to eighty minutes of moderately intense, repeated (chronic) exercise appeared to demonstrate the greatest beneficial impact on selective attention.
Originality/value
To the best of the authors’ knowledge, this review is the first to present the extant literature on the effect of physical activity and sport on symptoms of young people with ADHD. It presents evidence to suggest that exercise with progressively increasing cognitive demands may have positive effects for children with ADHD, specifically in terms of improving cognitive flexibility. Further large-scale clinical trials are needed to confirm the positive effects of physical exercise on cognitive functioning in children with ADHD.
Glenda Cook, Annette Hand, Jill Wales and Alexandra Kirton
Mobile technology and applications offer a new approach to personalised care for older people. Hear Me Now (HMN), developed by Maldaba Ltd, is an application for smartphones and…
Abstract
Purpose
Mobile technology and applications offer a new approach to personalised care for older people. Hear Me Now (HMN), developed by Maldaba Ltd, is an application for smartphones and tablets. Although originally conceived and co-produced by individuals with learning disabilities and their supporters, anecdotal evidence from specialist practitioners indicated that older people with chronic health conditions and frailty might also benefit from use of the HMN app. This feasibility study sought to explore whether older people could use the HMN app and examine their usage. The aim of this feasibility study was to explore whether older people could use HMN and to examine their usage of this application.
Design/methodology/approach
A purposive sample of six individuals (M = 4; F = 2) aged between 65 and 90 years was recruited for the study. Following training, the participants used HMN at home for different purposes over three months. Concurrently, the participants took part in an online interview every three weeks (N = 5 interviews). They also completed the Task Load Index (NASA-TLX) questionnaire during Weeks 1 and 12 and the system usability scale during Week 12 to assess usability of HMN.
Findings
The participants used the HMN app for a range of purposes and indicated that their confidence and skills increased when using HMN. Though the participants reported diverse experiences of using HMN for different purposes, it was clear the majority considered this app helpful in managing daily life and their health conditions; however, they also experienced barriers in its use such as dexterity and visual problems.
Research limitations/implications
This is a small feasibility study that was restricted to older people using the HMN app. Though valuable insights were obtained from the participants, the evidence that older people could use HMN to support their personal activities and to self-manage health conditions remains anecdotal. Further research is therefore warranted following adaptation of HMN for use by older people.
Originality/value
This study indicates that patient self-management apps such as HMN have the potential to enable older adults with long-term health conditions to play an active role in managing their condition.
Details
Keywords
Annette Markham and Riccardo Pronzato
This paper aims to explore how critical digital and data literacies are facilitated by testing different methods in the classroom, with the ambition to find a pedagogical…
Abstract
Purpose
This paper aims to explore how critical digital and data literacies are facilitated by testing different methods in the classroom, with the ambition to find a pedagogical framework for prompting sustained critical literacies.
Design/methodology/approach
This contribution draws on a 10-year set of critical pedagogy experiments conducted in Denmark, USA and Italy, and engaging more than 1,500 young adults. Multi-method pedagogical design trains students to conduct self-oriented guided autoethnography, situational analysis, allegorical mapping, and critical infrastructure analysis.
Findings
The techniques of guided autoethnography for facilitating sustained data literacy rely on inviting multiple iterations of self-analysis through sequential prompts, whereby students move through stages of observation, critical thinking, critical theory-informed critique around the lived experience of hegemonic data and artificial intelligence (AI) infrastructures.
Research limitations/implications
Critical digital/data literacy researchers should continue to test models for building sustained critique that not only facilitate changes in behavior over time but also facilitate citizen social science, whereby participants use these autoethnographic techniques with friends and families to build locally relevant critique of the hegemonic power of data/AI infrastructures.
Originality/value
The proposed literacy model adopts a critical theory stance and shows the value of using multiple modes of intervention at micro and macro levels to prompt self-analysis and meta-level reflexivity for learners. This framework places critical theory at the center of the pedagogy to spark more radical stances, which is contended to be an essential step in moving students from attitudinal change to behavioral change.
Details
Keywords
Annette Bilfeldt and Marianne Mahler
The purpose of this paper is to discuss participatory action research with staff, residents and relatives contributed to the residents’ quality of life through the development of…
Abstract
Purpose
The purpose of this paper is to discuss participatory action research with staff, residents and relatives contributed to the residents’ quality of life through the development of an inclusive praxis in a public nursing home in Denmark. The project addressed the residents’ reports about a lack of influence in their everyday lives.
Design/methodology/approach
The project used future-creating workshops as an important methodological tool. Theoretical concepts about developing a social reflexive and colletive morally obliging praxis were central to frame democratic learning and acting. The theoretical concepts of empowerment and capability were also applied. This paper will outline the methods and the results obtained.
Findings
Learning processes were initiated, enabling staff to respectfully engage in dialogue with residents and their relatives about their needs and wishes. The development of a democratic knowledge-building process was established based on the perspectives of the residents, relatives and staff. In conclusion, the project contributed to the development of a more reflective and democratic praxis focused on empowering the residents as the primary “stakeholders” in the daily life of the nursing home.
Originality/value
The research paper is based on the authors’ own research.
Details