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1 – 10 of 59Anup Kumar, Bhupendra Kumar Sharma, Bandar Bin-Mohsen and Unai Fernandez-Gamiz
A parabolic trough solar collector is an advanced concentrated solar power technology that significantly captures radiant energy. Solar power will help different sectors reach…
Abstract
Purpose
A parabolic trough solar collector is an advanced concentrated solar power technology that significantly captures radiant energy. Solar power will help different sectors reach their energy needs in areas where traditional fuels are in use. This study aims to examine the sensitivity analysis for optimizing the heat transfer and entropy generation in the Jeffrey magnetohydrodynamic hybrid nanofluid flow under the influence of motile gyrotactic microorganisms with solar radiation in the parabolic trough solar collectors. The influences of viscous dissipation and Ohmic heating are also considered in this investigation.
Design/methodology/approach
Governing partial differential equations are derived via boundary layer assumptions and nondimensionalized with the help of suitable similarity transformations. The resulting higher-order coupled ordinary differential equations are numerically investigated using the Runga-Kutta fourth-order numerical approach with the shooting technique in the computational MATLAB tool.
Findings
The numerical outcomes of influential parameters are presented graphically for velocity, temperature, entropy generation, Bejan number, drag coefficient and Nusselt number. It is observed that escalating the values of melting heat parameter and the Prandl number enhances the Nusselt number, while reverse effect is observed with an enhancement in the magnetic field parameter and bioconvection Lewis number. Increasing the magnetic field and bioconvection diffusion parameter improves the entropy and Bejan number.
Originality/value
Nanotechnology has captured the interest of researchers due to its engrossing performance and wide range of applications in heat transfer and solar energy storage. There are numerous advantages of hybrid nanofluids over traditional heat transfer fluids. In addition, the upswing suspension of the motile gyrotactic microorganisms improves the hybrid nanofluid stability, enhancing the performance of the solar collector. The use of solar energy reduces the industry’s dependency on fossil fuels.
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This chapter analyzes the campaign against race norming in the 2013 National Football League (NFL) concussion settlement that caregivers of retired players designed, and it…
Abstract
This chapter analyzes the campaign against race norming in the 2013 National Football League (NFL) concussion settlement that caregivers of retired players designed, and it considers how their collective action throws new light on activism in sport. While there is a substantial literature on how individual athletes engage in protest, less work has focused on how families – partners, children, siblings, and parents – of athletes organize as a group to answer back to anti-Black racism in professional sport. I argue that a group of spouses used their position as caregivers to shame the NFL, the presiding judge of the settlement, Class Counsel, and even the Department of Justice into acknowledging not only individual suffering from traumatic brain injury but also of the distribution of that suffering across households. Specifically, the wives group expanded definitions of risk and damage to include not only individual illness but also family and group suffering and demanded inclusion of gendered and racialized aspects of social care. Through their campaign, the group recast what is considered protest in the world of sport and who has the ability to access an activist subjectivity.
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Frederick J. Brigham, Christopher Claude, Jason Chow, Colleen Lloyd Eddy, Nicholas Gage and John William McKenna
Four reputed leaders for the coming years in the field of special education for individuals with emotional and behavioral disorders (EBD) each with a slightly different…
Abstract
Four reputed leaders for the coming years in the field of special education for individuals with emotional and behavioral disorders (EBD) each with a slightly different perspective on the field were asked to respond independently to a prompt asking what does special education mean for students with EBD and what is being done and how do we maintain tradition? The contributors' responses to the prompt are presented and then summarized across the essays. A remarkable consistency emerges across the independent essays. In addition to the tradition of providing a free and appropriate education in the least restrictive environment, the contributors identify needs to support teachers serving this population. Needs in teacher training and the expertise required to meet the needs of individuals with EBD are outlined as well as potential contributions of technology to carry out specific tasks. We conclude with a call for increased advocacy for use of the knowledge that we currently possess and that which will soon be discovered to support students with EBD as well as their teachers. We also note that the contributors' names are listed alphabetically to acknowledge the equality of each person to the final product.
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Anna M. Cianci and George T. Tsakumis
The purpose of this study is to examine accountants’ application of principles-based accounting standards to a lawsuit contingency recognition scenario and the potential role that…
Abstract
Purpose
The purpose of this study is to examine accountants’ application of principles-based accounting standards to a lawsuit contingency recognition scenario and the potential role that accounting work experience plays in mitigating accountants’ aggressive financial reporting.
Design/methodology/approach
This study presents a 2 × 2 between-subjects experiment with accounting experience (measured as high vs low) and contingency type (asset vs liability) as independent variables and accountants’ lawsuit contingency conservatism likelihood judgments and US$ recognition recommendations as the dependent variables.
Findings
Consistent with expectations, findings indicate that more experienced accountants are more likely to recognize liabilities and items that decrease income and less likely to recognize assets and items that increase income than their less experienced counterparts. Accountants also recommended recognizing lower (higher) mean US$ amounts for assets (liabilities), as expected. Supplemental analyses show a significant moderated-mediated effect whereby the interactive effect of contingency type and accounting experience on individuals’ US$ recognition recommendations is partially mediated through the nature of the conservatism judgment.
Practical implications
The finding that less experienced accountants report more aggressively than more experienced accountants when applying a principles-based standard supports the call for using judgment frameworks in imprecise standard settings and suggests that firms may want to ensure that accountants with adequate work experience are on hand as U.S. generally accepted accounting principles become more principles-based over time.
Originality/value
To the best of the authors’ knowledge, this study is the first to examine the impact of accounting work experience on the application of principles-based accounting standards and the mitigation of aggressive financial reporting. Our supplemental analyses also identify the nature of the conservatism judgment as a mediating mechanism which partially explains more experienced accountants’ US$ asset and liability recognition recommendations.
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Jeffrey Joseph Haynie, Bryan Fuller, Christopher L. Martin and Joe Story
This study examined the dual roles of supervisor-directed surface acting (SDSA) and unfairness talk emerging from low overall justice judgments and the impact of these variables…
Abstract
Purpose
This study examined the dual roles of supervisor-directed surface acting (SDSA) and unfairness talk emerging from low overall justice judgments and the impact of these variables on subordinates' job satisfaction and emotional exhaustion.
Design/methodology/approach
Working professionals (n = 203) were sampled from online panel services in a time-separated data collection design.
Findings
SDSA was found to mediate the relationships of overall justice with emotional exhaustion and job satisfaction. Additionally, unfairness talk reduced the debilitating effect of SDSA on emotional exhaustion, not job satisfaction.
Practical implications
The paper highlights the importance of supervisors understanding the problematic nature of ongoing interactions with subordinates after unjust events occur.
Originality/value
This study helps to better explain why overall justice assessments influence subordinates' job satisfaction and emotional exhaustion. Additionally, the findings show that unfairness talk may not be as detrimental as suggested in recent studies, and it acts as a coping mechanism when contending with high SDSA, especially when emotional exhaustion is considered.
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Noura Alsedais, Amal Al-Hanaya and Abdelraheem M. Aly
This paper aims to investigate magnetic impacts on bioconvection flow within a porous annulus between an outer cylinder and five inner cylinders. The annulus is filled by…
Abstract
Purpose
This paper aims to investigate magnetic impacts on bioconvection flow within a porous annulus between an outer cylinder and five inner cylinders. The annulus is filled by oxytactic microorganisms and nano-encapsulated phase change materials.
Design/methodology/approach
The modified ISPH method based on the time-fractional derivative is applied to solve the regulating equations in Lagrangian dimensionless forms. The pertinent factors are bioconvection Rayleigh number Rab (1–100), circular cylinder’s radius Rc (0.1–0.3), fractional time derivative α (0.95–1), Darcy parameter Da (10−5–10−2), nanoparticle parameter ϕ (0–0.1), Hartmann number Ha (0–50), Lewis number Le (1–20), Peclet number Pe (0.1–0.75), s (0.1–0.9), number of cylinders NCylinders (1–4), Rayleigh number Ra (103–106) and fusion temperature θf (0.005–0.9).
Findings
The simulations revealed that there is a strong enhancement in the velocity field according to an increase in Rab. The intensity and location of the phase zone change in response to changes in θf. The time-fractional derivative a acting on a nanofluid velocity and flow characteristics in an annulus. The number of embedded cylinders NCylinders is playing a significant role in the cooling processes and as NCylinders increases from 1 to 4, the velocity field’s maximum reduces by almost 33.3%.
Originality/value
The novelty of this study is examining the impacts of the magnetic field and the presence of several numbers of embedded cylinders on bioconvection flow within a porous annulus between an outer cylinder and five inner cylinders.
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Katherine A. Graves, Lindsey Mirielli and Chad A. Rose
This chapter explores the complex intersection between students with disabilities and bullying prevention within educational settings. While bullying impacts all students, those…
Abstract
This chapter explores the complex intersection between students with disabilities and bullying prevention within educational settings. While bullying impacts all students, those with disabilities face unique challenges that make them more vulnerable to such experiences (Rose & Gage, 2016; Rose et al., 2011). By examining the underlying factors contributing to the heightened risk of bullying among students with disabilities, this chapter aims to provide a more comprehensive understanding of the issue. It delves into the specific ways in which students with disabilities are targeted and engage in bullying behaviors, such as through verbal, relational, or physical, and highlights the negative consequences on their overall well-being and academic performance. Moreover, this chapter examines existing interventions and strategies employed to prevent bullying among students with disabilities. It critically evaluates the effectiveness of individual, classroom, and school-wide interventions, highlighting the need for a comprehensive approach that addresses the unique needs and challenges faced by this subset of students. The importance of collaboration between educators, parents, and other stakeholders in implementing evidence-based practices is also emphasized. By promoting awareness, fostering inclusive school environments, and implementing targeted interventions, we can strive toward creating a safe and supportive atmosphere that enables students with disabilities to thrive academically and socially, free from bullying involvement.
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Quentin M. Wherfel and Jeffrey P. Bakken
This chapter provides an overview on the traditions and values of teaching students with traumatic brain injury (TBI). First, we discuss the prevalence, identification, and…
Abstract
This chapter provides an overview on the traditions and values of teaching students with traumatic brain injury (TBI). First, we discuss the prevalence, identification, and characteristics associated with TBI and how those characteristics affect learning, behavior, and daily life functioning. Next, we focus on instructional and behavioral interventions used in maintaining the traditions in classrooms for working with students with TBI. Findings from a review of the literature conclude that there are no specific academic curriculums designed specifically for teaching students with TBI; however, direct instruction and strategy instruction have been shown to be effective educational interventions. Current research on students with TBI is predominately being conducted in medical centers and clinics focusing on area of impairments (e.g., memory, attention, processing speed) rather than academic achievement and classroom interventions. Finally, we conclude with a list of accommodations and a discussion of recommendations for future work in teaching students with TBI.
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Molly Pasley and Stacy M. Kelly
This chapter discusses what special education means for students with visual impairments (that is, those who are blind or have low vision) including what is being done and how…
Abstract
This chapter discusses what special education means for students with visual impairments (that is, those who are blind or have low vision) including what is being done and how traditions are maintained. More specifically, this chapter explores the importance of advancing values for the diverse population of students with visual impairments, focusing on cultivation of supportive, inclusive, and collaborative educational environments that continue to stand the test of time. This chapter highlights the increasing heterogeneity of this population of students and specific instructional strategies to support the cultural and linguistic diversity of learners with visual impairments in today's classrooms. This chapter also discusses the significance of promoting core concepts that are rooted in a traditional and specialized instructional framework for students who are visually impaired.
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Cathrine Linnes, Jeffrey Thomas Weinland, Giulio Ronzoni, Joseph Lema and Jerome Agrusa
The purpose of this study is to examine the trend toward purchasing locally grown food and evaluate if tourists visiting Hawai'i are willing to pay more for locally produced foods…
Abstract
Purpose
The purpose of this study is to examine the trend toward purchasing locally grown food and evaluate if tourists visiting Hawai'i are willing to pay more for locally produced foods that are more ecologically sustainable.
Design/methodology/approach
A research questionnaire was developed in order to investigate the attitudes and behaviors of tourists from the continental United States visiting Hawai'i in purchasing locally grown food in Hawai'i. The final sample includes 454 valid survey responses collected via Momentive, a market research services company.
Findings
According to the findings of this study, there are economic prospects to expand the use of locally cultivated food into the tourists' experience, as well as a willingness for tourists to support these activities financially. The Contingent Valuation study revealed that tourists from the continental United States were ready to pay a higher price to purchase food that is locally grown, signifying that tourists to Hawai'i are willing to aid the local agriculture business by increasing their restaurant/hotel meal bill, which will help Hawai'i become a more sustainable tourist destination.
Research limitations/implications
While tourists from the United States mainland, which is the “an islands” top tourist market, have agreed with paying extra or an additional fee for locally grown food products, this study might not accurately represent the attitudes and behaviors of international tourists visiting Hawai'i. Future research should focus on the international tourist markets which may have different social norms or cultural differences thus could provide a broader spectrum of the current study's findings.
Originality/value
The results of this study provided quantitative evidence that tourists from the United States are interested in purchasing locally grown food items in Hawaii in addition to their willingness to pay an additional fee for these locally grown food products at a restaurant or a hotel dining room, thus addressing a gap in the tourism research.
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