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1 – 10 of 26Lun‐Chen Hsu, Thermpon Ativanichayaphong, Hung Cao, Jeongsik Sin, Mason Graff, Harry E. Stephanou and J.‐C. Chiao
Selection of a gas sensor requires consideration of environmental effects that can significantly affect performance and cause false alarms. Metal‐oxide sensors have high…
Abstract
Purpose
Selection of a gas sensor requires consideration of environmental effects that can significantly affect performance and cause false alarms. Metal‐oxide sensors have high sensitivity due to the specific interactions of gas molecules with thin metal‐oxide films, however, the films can also be sensitive to variations in temperature and humidity and some oxidizing and deoxidizing gases. The purpose of this paper is to evaluate the environmental effect on metal‐oxide nitrogen dioxide (NO2) sensors quantitatively.
Design/methodology/approach
Three commercial metal‐oxide NO2 sensors and one electrochemical sensor were tested simultaneously under controlled gas concentrations and various environmental conditions. For this test, a customized sensor testing setup was prepared including a gas mixer, heating module, gas chamber, electronics, and data acquisition units.
Findings
Based on the test results for NO2 gas concentrations ranging from 0 to 10 ppm, the metal‐oxide sensors showed significant signal variations at elevated temperatures and humidity. The results provide overall sensor performance. Linearity, repeatability, selectivity and sensitivity of the metal‐oxide sensors were measured and compared to an electrochemical sensor.
Originality/value
A systematic evaluation to characterize metal‐oxide NO2 sensors is presented, and their comparison regarding sensitivity, selectivity, linearity, and dependence on humidity and temperature is reported. The result provides sensor performance data and guideline for sensor evaluation.
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Malek Safori, Zainab Alqudah and Brett Williams
Paramedics responding to emergencies have proven to have an impact on their mental health and well-being. Therefore, measuring and initiating resilience promotion and development…
Abstract
Purpose
Paramedics responding to emergencies have proven to have an impact on their mental health and well-being. Therefore, measuring and initiating resilience promotion and development during the educational process could promote health in this group. This study aims to cross-sectionally examine the self-reported resilience levels of bachelor paramedic students at a large Australian university.
Design/methodology/approach
A cross-sectional study using a convenience sample of first-, second- and third-year bachelor paramedic students was used from a large Australian university. The student’s resilience was measured using the 25-item Connor-Davidson Resilience Scale (CD-RISC) during 2019.
Findings
Two-hundred and twenty-nine students participated in the study, of which 55% were females. The total mean score for the CD-RISC was 72.6 [standard deviation (SD) = 13.2). The CD-RISC mean score of the first-, second- and third-year levels were 75.3 (SD = 13.2), 70.5 (SD = 14.4) and 73.8 (SD = 10.4), respectively, with no significant statistical difference (p-value = 0.1) and of which the second year formed the major sample (44.5%). Additionally, our findings show no significant variation in the CD-RISC mean score between males [70.8 (SD = 12.9)] and females [74.1 (SD = 13.3)], with p-value = 0.09.
Originality/value
The study findings suggest that paramedic students have moderate levels of self-reported resilience. These results, while specific to one university, provide essential data for the paramedic profession in addressing an important issue facing all paramedics around the world.
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Sandro Formica and Michael D. Olsen
The aim of this paper is to explore the amusement park industry and its evolution during the 1990s. The primary causes of change in this industry are determined and their impact…
Abstract
The aim of this paper is to explore the amusement park industry and its evolution during the 1990s. The primary causes of change in this industry are determined and their impact on the companies operating in this business is investigated. The assumption to be ascertained is how currently operating amusement park firms have been able to effectively respond to the threats and opportunities created by the environmental changes occurring in the 1990s. The analysis is framed into three main sections: first, it offers an overview of the amusement industry; second, it examines the environmental trends affecting it; and third, it attempts to delineate the future development of the amusement business.
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Harald S. Harung, Dennis P. Heaton, William W. Graff and Charles N. Alexander
Investigates higher stages of human development in some of the world’s most accomplished performers. Indicates that far more frequent experiences of a silent, expanded, restfully…
Abstract
Investigates higher stages of human development in some of the world’s most accomplished performers. Indicates that far more frequent experiences of a silent, expanded, restfully alert and non‐attached state of heightened awareness characterize those individuals who display outstanding skill and accomplishment in their action. Interprets these findings in the light of the Vedic Psychology of Maharishi Mahesh Yogi, which describes higher states of consciousness in which peak performances are all‐time phenomena rather than extraordinary happenings. There is widespread agreement that only very few individuals reach the highest stages of human development; as a consequence, there is a considerable latent human potential in organizations and society.
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Building on the “Great Divide” thesis (Goody, 1977; Ong, 1982), this study analyzes the conceptual relationships between the two main communication modes (orality/literacy) and…
Abstract
Purpose
Building on the “Great Divide” thesis (Goody, 1977; Ong, 1982), this study analyzes the conceptual relationships between the two main communication modes (orality/literacy) and cultural values.
Design/methodology/approach
The study adopts a purely conceptual approach to connect orality and literacy with nine cultural dimensions adopted from Kluckhohn and Strodtbeck’s (1961), Hall’s (1976) and Inglehart’s (1997) frameworks.
Findings
The analyses suggest that orality is associated with values such as high-context communication, poly-chronic time, public space proxemics, collectivism, hierarchical social structure, subjugation, past orientation, religiousness/traditionalism and survival cultural dimensions. Literacy is associated with opposing values, including low-context communication, mono-chronic time, private space proxemics, individualism, egalitarian social structure, dominance, future orientation, secularity/rationality, and self-expression cultural dimensions. The paper relies on modernization theory to explain the socio-economic implications and organizes the nine pairs of cultural dimensions according to the great divide between orality and literacy.
Originality/value
Theoretically, this study conceptualizes orality and literacy, analyzes their salient differences and examines their relationships with cultural values. While many studies have tried to explain the differences in cultural values from an economic perspective, this study offers an alternative view of cultural values’ variations across the world.
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This paper seeks to provide an updated, general understanding of supercenter shopping behavior in the USA.
Abstract
Purpose
This paper seeks to provide an updated, general understanding of supercenter shopping behavior in the USA.
Design/methodology/approach
The study employs a sample generated from Retail Forward panel data to assess the impact of demographic variables, including gender, age, ethnicity, education, income, marital status, and household size, on supercenter shopping frequency across four product categories (apparel, health and beauty, home furnishings, and consumer electronics). Descriptive and inferential statistical techniques (regression, ANOVA) are used to evaluate the data.
Findings
The paper identifies demographic groups who frequent supercenters and examines patronage motives as drivers of supercenter shopping behavior.
Research limitations/implications
Generalizations of the findings of this study to markets outside the USA are limited due to the differences in consumers and retail formats available in various countries. Future research could compare shopping behavior within large formats across international markets.
Practical implications
This research provides supercenter retailers who operate within the USA with specific knowledge of the patronage motives driving cross‐category shopping in supercenters (e.g. value, one‐stop shopping convenience, brands, product assortment) and identifies the demographic characteristics of cross‐category shoppers. The results suggest marketing strategy implications for supercenter operators in the US market. As competition in the sector continues to evolve and consumer demographics change within the US market, understanding cross‐category shopping will be critical to retailer performance in the industry.
Originality/value
This study uses demographics and patronage motives as a framework for profiling cross‐category shoppers in the US supercenters. The paper is unique because there are few similar empirical studies which focus on consumer behavior within supercenters.
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The supply chain literature highlights chains that are activated by actual or forecasted demand, and has largely overlooked those that are activated by the supply source. This…
Abstract
Purpose
The supply chain literature highlights chains that are activated by actual or forecasted demand, and has largely overlooked those that are activated by the supply source. This paper aims to position supply driven chains as a distinct class and to develop their properties.
Design/methodology/approach
Supply driven examples are given and their structural and behavioral properties are developed. Their properties are compared with those of demand driven chains using Fisher's classification scheme. The paper is conceptual in nature.
Findings
Four properties of supply driven chains are advanced. They show that supply driven chains differ significantly from their demand driven counterparts. As example, supply driven chains are prone to a reverse form of the standard bullwhip effect that is associated with demand driven chains.
Research limitations/implications
Investigating supply driven chains opens several research avenues. Further properties and examples can be developed, along with methods to mitigate the reverse bullwhip effect. Research into synergies and boundary issues between supply and demand driven chains will likely yield operational efficiencies overall.
Practical implications
Differentiating between supply and demand driven phenomena helps practitioners design more efficient supply chains. For example, superimposing a demand driven operational structure on a supply driven phenomenon can be disruptive. Also, an efficiently operated supply driven chain may enhance the operations of related demand driven chains.
Originality/value
This paper highlights and develops supply driven supply chains. It extends supply chain theory and practice by providing additional structural characteristics that can be incorporated into supply chain designs.
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To detail the changing nature of retail and service activity in Canada's downtowns and examine the role of business improvement areas (BIAs) in promoting downtown vitality.
Abstract
Purpose
To detail the changing nature of retail and service activity in Canada's downtowns and examine the role of business improvement areas (BIAs) in promoting downtown vitality.
Design/methodology/approach
The research is based on a combination of retail structural analysis and case study research. The structural analysis provides data on transitioning urban demographics and tracks retail and service activity sales change in Canada's major metropolitan downtowns. The case study reports an overview of findings from in‐depth research with the Downtown Yonge BIA. A small number of retail metrics are presented.
Findings
The paper highlights the significant suburb shift in retail activity across Canada's metropolitan areas and the associated challenges that this has resulted in for the downtown. The role of BIAs are outlined, and examined with reference to operation of the BIA concept within the downtown core of Canada's largest metropolitan market, Toronto.
Research limitations/implications
The research has been selective in focusing on the Downtown Yonge BIA, the experiences of BIAs across Toronto (and other Canada metropolitan areas) are likely to vary widely. Highlights the need to develop metrics to measure performance and compare BIAs.
Practical implications
The paper provides an interesting perspective on BIA strategies, with the selected metrics providing BIA managers and urban planners with a set of additional measures to assess BIA performance
Originality/value
The paper relates BIA planning to the development of performance metrics.
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Seedwell Sithole, Ragini Datt, Paul de Lange and Meredith Tharapos
The purpose of this study is to investigate the effectiveness of diagrammatic visualisation techniques versus sentential learning contexts in an accounting subject using the…
Abstract
Purpose
The purpose of this study is to investigate the effectiveness of diagrammatic visualisation techniques versus sentential learning contexts in an accounting subject using the theoretical lens of cognitive load theory (CLT).
Design/methodology/approach
The present study used four groups of students; two groups completed a task using diagrammatic visualisation learning materials, with one of the groups undertaking their leaning activities collaboratively and another on an individual basis, whereas two comparison groups were given a sentential learning context without diagrams, with one group undertaking their leaning activities collaboratively and the other individually. In addition to performance grades, cognitive load self-report scores were also elicited from participants.
Findings
The findings of this study indicate support for diagrammatic visualisation techniques for students working collaboratively. Compared with sentential learners, the authors find significantly improved test performance for students who work collaboratively in a diagrammatic visualisation environment. Students in the visualisation environments obtained higher grades than those in the sentential group. In terms of mental effort, students in the visualisation conditions reported the lowest cognitive load.
Practical implications
The authors conclude that diagrammatic visualisation learning techniques enhance student performance outcomes, particularly for those who work collaboratively. CLT assists in the understanding of the mental processes involved in learning. Instructional designers need to consider CLT when developing diagrammatic visualisation material to enable students to obtain the best possible learning outcomes.
Originality/value
This study addresses a gap in the literature by examining the use of diagrammatic visualisation materials as an alternative to text when learning accounting. The study explores the effect of visualisation material on students’ cognitive load by analysing their mental effort. The study contributes useful findings on visualisation as a conduit to enhancing the understanding of accounting using CLT principles.
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Kewen Wu, Julita Vassileva, Qinghua Zhu, Hui Fang and Xiaojie Tan
Wiki forms a new model of virtual collaboration. The original wiki is designed to hide content authorship information. Such design may hinder users from being aware of task…
Abstract
Purpose
Wiki forms a new model of virtual collaboration. The original wiki is designed to hide content authorship information. Such design may hinder users from being aware of task conflict, resulting in low-efficient conflict management and decreased group performance. This study aims at increasing users' awareness of task conflict to facilitate wiki-based collaboration.
Design/methodology/approach
A visual feedback dialog box is designed to increase users' awareness of task conflict. A survey-based comparative study is conducted by using original wiki and modified wiki (the new design). A total of 301 participants are invited. Structural equation model (SEM) is used to analyze survey data.
Findings
Most users are willing to solve conflict issues, and the dialog box can increase users' awareness of task conflict. Conflict awareness can promote user's participation, gain better conflict resolution and improve group performance. The dialog box can enhance the influence of conflict awareness on user participation and conflict resolution, but reduce the influence of conflict awareness on group performance.
Research limitations/implications
Only undergraduate students are invited, some typical variables are not included. The design needs improvement.
Originality/value
A new wiki tool is designed. The influence of conflict awareness is explored while previous studies largely ignore this variable.
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