Adrian Urbano, Michael Mortimer, Ben Horan, Hans Stefan and Kaja Antlej
The ability to measure cognitive load in the workplace provides several opportunities to improve workplace learning. In recent years, virtual reality (VR) has seen an increase in…
Abstract
Purpose
The ability to measure cognitive load in the workplace provides several opportunities to improve workplace learning. In recent years, virtual reality (VR) has seen an increase in use for training and learning applications due to improvements in technology and reduced costs. This study aims to focus on the use of simulation task load index (SIM-TLX), a recently developed self-reported measure of cognitive load for virtual environments to measure cognitive load while undertaking tasks in different environments.
Design/methodology/approach
The authors conducted a within-subject design experiment involving 14 participants engaged in digit-recall n-back tasks (1-back and 2-back) in two VR environments: a neutral grey environment and a realistic industrial ozone facility. Cognitive load was then assessed using the SIM-TLX.
Findings
The findings revealed higher task difficulty for the 2-back task due to higher mental demand. Furthermore, a notable interaction emerged between cognitive load and different virtual environments.
Research limitations/implications
This study relied solely on an n-back task and SIM-TLX self-report measure to assess cognitive load. Future studies should consider including ecologically valid tasks and physiological measurement tools such as eye-tracking to measure cognitive load.
Practical implications
Identifying cognitive workload sources during VR tasks, especially in complex work environments, is considered beneficial to the application of VR training aimed at improving workplace learning.
Originality/value
This study provides unique insights into measuring cognitive load from various sources as defined by the SIM-TLX sub-scales to investigate the impact of simulated workplace environments.
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Stefan Josupeit and Hans-Joachim Schmid
The temperature distribution and history within laser sintered part cakes is an important aspect regarding the process quality and reproducibility of the polymer laser sintering…
Abstract
Purpose
The temperature distribution and history within laser sintered part cakes is an important aspect regarding the process quality and reproducibility of the polymer laser sintering process. This paper aims to an analysis of the temperature history during the build and cooling phase, which is decisive for powder ageing effects and the development of part quality characteristics.
Design/methodology/approach
A measurement system for three-dimensional in-process temperature measurements is set up and the influence of different parameters on the inner part cake temperature distribution and history is analyzed. In addition, position dependent temperature histories are finally correlated with powder ageing effects.
Findings
The main parameters influencing the part cake temperature history are figured out. Temperature inhomogeneities on the powder bed surface are detectable within the part cake, but only for a specific time or additional build height. Heat flux through the build frame results in different cooling rates dependent on z height. A combination of process parameters and build job layout results in individual, position-dependent temperature histories. As a consequence, completely different ageing intensities are found within one part cake.
Research limitations/implications
Temperature measurements are limited to part-free powder cakes so far. To transfer the results to other boundary conditions and machine types, simulation tools have to be developed and validated.
Originality/value
For the first time, the inner part cake temperature distribution and history have been measured during all build phases and with a high sensor density. The results of this work help to understand the temperature history dependency of powder and part properties and can therefore be used to develop optimized process controls.
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This chapter examines two 21st-century Disney fairy tale adaptations, Frozen (2013) and its sequel Frozen II (2019), focussing on the representation of male characters and the…
Abstract
This chapter examines two 21st-century Disney fairy tale adaptations, Frozen (2013) and its sequel Frozen II (2019), focussing on the representation of male characters and the discourse on masculinity that can be inferred from both films.
Despite featuring two prominent female protagonists – Queen Elsa and Princess Anna – and dealing with themes such as sisterhood and female bonding, a close reading of the two films reveals that they are as much about masculinity as they are about femininity. For instance, filmmakers introduce heterosexual romance where there was none before, as well as male characters Prince Hans and Kristoff, who are not present in the literary source that they draw from, Hans Christian Andersen's ‘The Snow Queen’ (1844).
Furthermore, these male characters are given names, personalities, and motivations, which cannot be said of previous Disney fairy tale Prince Charming-type figures. Therefore, Hans and Kristoff are proposed to be variations of this archetype and can be read as an attempt on Disney's part to complicate it, undermine the patriarchal masculinity that it stood for in its previous Disney renderings, and propose alternative models for the implied 21st-century audience.
Although Prince Hans is initially presented as a stereotypical Disney fairy tale prince, he is eventually revealed to be a narcissistic lover and a patriarchal villain. Kristoff, by contrast, is the humble, lower-class, sensitive ‘new’ man who is presented as a socially acceptable alternative and finally takes Prince Charming's place by becoming the princess's love interest and partner. Frozen can be read as a cautionary tale that urges young women to choose their romantic (male) partners wisely and warns both male and female audiences against the dangers of fragile patriarchal masculinity.
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Allah Wasaya, Catherine Prentice and Aaron Hsiao
This paper aims to review norms and their relationship with consumer behavior in the tourism sector. The review aims to identify gaps in relation to various norms and their impact…
Abstract
Purpose
This paper aims to review norms and their relationship with consumer behavior in the tourism sector. The review aims to identify gaps in relation to various norms and their impact on the literature to provide future research recommendations.
Design/methodology/approach
A systematic literature review method was used to analyze norms in consumer behavior research within the context of tourism and hospitality. The review focused on the research context, conceptualizations, roles, measurements, theoretical backgrounds and the major findings.
Findings
The review reveals that the conceptualizations and dimensionality of norms in the existing studies are inconsistent, and most research in the tourism context only adopted the concept partially without capturing the totality of the concept. The theoretical gaps and measurement of norms were also identified for future research.
Research limitations/implications
This study contributes to a better understanding of the role of norms in shaping tourist behavior and can guide practitioners in developing effective marketing strategies. The findings suggest the need for a more comprehensive understanding of the concept of norms in tourism in relation to theoretical underpinnings, measurement and application. The recommendations provided in this study can guide future research on norms and tourist behavior.
Originality/value
Norms have been extensively discussed in the literature. This paper is the first to systematically review norms and their influence on consumer behavior in the tourism sector.
目的
本文审视规范及其与旅游业消费者行为的关系。此审查旨在确定关于各种规范及其对文献的影响的差距, 并提供未来研究建议。
方法
采用系统文献综述方法, 分析了旅游和酒店消费者行为研究中的规范。审查侧重于研究背景、概念化、角色、测量方法、理论背景和主要发现。
研究结果
审查发现现有研究中规范的概念化和维度存在不一致性, 而大多数旅游环境下的研究只部分采用了该概念, 未能完整捕捉概念的整体。还确定了未来研究中规范的理论差距和测量问题。
意义
本研究有助于更好地理解规范在塑造游客行为中的作用, 并可以指导从业者制定有效的营销策略。研究结果表明, 需要更全面地理解规范概念在旅游中的理论基础、测量和应用。本研究提供的建议可以指导未来关于规范和游客行为的研究。
独创性/价值
规范在文献中已经广泛讨论。本文是第一个系统地审查规范及其对旅游业消费者行为的影响。
Propósito
Este artículo examina las normas y su relación con el comportamiento del consumidor en el sector turístico. El objetivo de la revisión es identificar brechas con relación a diversas normas y su impacto en la literatura, para proporcionar recomendaciones en futuras investigaciones.
Metodología
Se empleó un método de revisión sistemática de la literatura para analizar las normas en la investigación del comportamiento del consumidor en el contexto del turismo y hostelería. La revisión se centró en el contexto de investigación, conceptualizaciones, roles, medidas, fundamentos teóricos y los principales hallazgos.
Resultados
La revisión revela que las conceptualizaciones y la dimensionalidad de las normas en los estudios previos son inconsistentes, y la mayoría de las investigaciones en el contexto del turismo solo adoptaron parcialmente el concepto sin capturar la totalidad de este. También se identificaron lagunas teóricas y medición de las normas para futuras investigaciones.
Implicaciones
Este estudio contribuye a una mejor comprensión del papel de las normas en la formación del comportamiento turístico y puede orientar a los profesionales en el desarrollo de estrategias de marketing efectivas. Los resultados sugieren la necesidad de una comprensión más holística del concepto de normas en el turismo en relación con los fundamentos teóricos, la medición y la aplicación. Las recomendaciones proporcionadas en este estudio pueden guiar futuras investigaciones sobre normas y comportamiento turístico.
Originalidad/valor
Las normas han sido ampliamente discutidas en la literatura. Este artículo es el primero en revisar sistemáticamente las normas y su influencia en el comportamiento del consumidor en el sector turístico.
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Abstract
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Satyanarayana Pamarthi and R. Narmadha
Nowadays, more interest is found among the researchers in MANETs in practical and theoretical areas and their performance under various environments. WSNs have begun to combine…
Abstract
Purpose
Nowadays, more interest is found among the researchers in MANETs in practical and theoretical areas and their performance under various environments. WSNs have begun to combine with the IoT via the sensing capability of Internet-connected devices and the Internet access ability of sensor nodes. It is essential to shelter the network from attacks over the Internet by keeping the secure router.
Design/methodology/approach
This paper plans to frame an effective literature review on diverse intrusion detection and prevention systems in Wireless Sensor Networks (WSNs) and Mobile Ad hoc NETworks (MANETs) highly suitable for security in Internet of Things (IoT) applications. The literature review is focused on various types of attacks concentrated in each contribution and the adoption of prevention and mitigation models are observed. In addition, the types of the dataset used, types of attacks concentrated, types of tools used for implementation, and performance measures analyzed in each contribution are analyzed. Finally, an attempt is made to conclude the review with several future research directions in designing and implementing IDS for MANETs that preserve the security aspects of IoT.
Findings
It observed the different attack types focused on every contribution and the adoption of prevention and mitigation models. Additionally, the used dataset types, the focused attack types, the tool types used for implementation, and the performance measures were investigated in every contribution.
Originality/value
This paper presents a literature review on diverse contributions of attack detection and prevention, and the stand of different machine learning and deep learning models along with the analysis of types of the dataset used, attacks concentrated, tools used for implementation and performance measures on the network security for IoT applications.
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Stefan Gössling and Daniel Scott
Tourism faces a range of interconnected and potentially transformative global risks – collectively considered an evolving polycrisis – that have not been adequately defined and…
Abstract
Purpose
Tourism faces a range of interconnected and potentially transformative global risks – collectively considered an evolving polycrisis – that have not been adequately defined and understood. As a result, the industry struggles to proactively anticipate and mitigate potential future challenges, while governments lack insight for strategic longer-term decision-making on tourism development. The purpose of this paper is to advance tourism sector consideration of global change threats and their complex interactions and more effectively incorporate these risks into tourism futures planning.
Design/methodology/approach
This conceptual gap is addressed through a discussion of the World Economic Forum’s Global Risk Reports, and their definition of environmental, economic, geopolitical, societal and technological risk categories. In applying results to tourism, a preliminary expert assessment of global risks serves as a foundational framework to incorporate potential global change threats more effectively into tourism futures planning and decision-making.
Findings
Additional research should be prioritized to examine global risks most influential of tourism, how and where they may interact, how to convert risk categories into measurable indicators and to evaluate whether risk assessments can contribute to mitigating the evolving polycrisis.
Originality/value
This paper discusses the systematic and strategic engagement with global risks for tourism, critically reviews the World Economic Forum’s Global Risk Reports from tourism perspective, presents key risk dimensions driving future tourism development, provides a foundational framework to further assess global risk for tourism and compels tourism academy to prioritize global change research agenda.
目的
旅游业面临一系列相互关联并且具有潜在变革性的全球风险——这些风险被统称为不断演变的多重危机——尚未得到充分定义和理解。因此, 行业难以主动积极预测和应对未来的挑战, 而政府在旅游发展中的长期战略决策上也缺乏洞见。
设计/方法论/途径
本文通过讨论世界经济论坛的《全球风险报告》及其对环境、经济、地缘政治、社会和技术风险类别的定义, 弥补了这一概念上的空白。在将这些结果应用于旅游业时, 初步的专家评估为更有效地将潜在的全球变化威胁纳入旅游业未来规划和决策提供了基础框架。
研究结果
应优先开展进一步研究, 以探讨对旅游业影响最大的全球风险、这些风险可能如何以及在何处相互作用、如何将风险类别转化为可衡量的指标, 以及风险评估是否有助于缓解不断演变的多重危机。
原创性/价值
讨论了旅游业与全球风险的系统性和战略性应对; 从旅游业的角度批判性地审视了世界经济论坛的《全球风险报告》; · 提出了驱动未来旅游业发展的关键风险维度; · 提供了进一步评估旅游业全球风险的基础框架; · 呼吁旅游学界优先关注全球变化研究议程。
Objetivo
El turismo se enfrenta a una serie de riesgos mundiales interconectados y potencialmente transformadores-considerados globalmente como policrisis en evolución-que no se han definido ni comprendido adecuadamente. En consecuencia, el sector se esfuerza por anticipar y mitigar de forma proactiva los posibles retos futuros, mientras que los gobiernos carecen de información para tomar decisiones estratégicas a largo plazo sobre el desarrollo del turismo.
Diseño/metodología/enfoque
Esta laguna conceptual se aborda mediante un análisis de los Informes sobre Riesgos Globales del Foro Económico Mundial y su definición de las categorías de riesgo medioambiental, económico, geopolítico, social y tecnológico. Al aplicar los resultados al turismo, una evaluación preliminar de los riesgos mundiales realizada por expertos proporciona un marco fundacional para incorporar más eficazmente las posibles amenazas del cambio global a la planificación y toma de decisiones sobre el futuro del turismo.
Conclusiones
Debe darse prioridad a la investigación adicional para examinar los riesgos globales que más influyen en el turismo, cómo y dónde pueden interactuar, cómo convertir las categorías de riesgo en indicadores medibles y evaluar si las evaluaciones de riesgo pueden contribuir a mitigar la policrisis en evolución.
Originalidad/valor
Analiza el compromiso sistemático y estratégico con los riesgos globales para el turismo; Revisa críticamente los Informes sobre Riesgos Globales del Foro Económico Mundial desde la perspectiva del turismo; Presenta las principales dimensiones del riesgo que impulsan el futuro desarrollo del turismo; Proporciona un marco básico para evaluar el riesgo mundial para el turismo; Precisa a la academia del turismo a priorizar la agenda de investigación sobre el cambio global.
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Thomas Niendorf, Florian Brenne, Mirko Schaper, Andre Riemer, Stefan Leuders, Wilfried Reimche, Dieter Schwarze and Hans J. Maier
As additive manufacturing techniques, such as selective laser melting, allow for straightforward production of parts on basis of simple computer-aided design files only…
Abstract
Purpose
As additive manufacturing techniques, such as selective laser melting, allow for straightforward production of parts on basis of simple computer-aided design files only, unauthorized replication can be facilitated. Thus, identification and tracking of individual parts are increasingly vital in light of globalized competition. This paper aims to overcome the susceptibility of additive manufacturing techniques for product piracy by establishing a method for introducing and reading out product identification markers not visible by naked-eye inspection.
Design/methodology/approach
Lasers of different nominal power were used for altering the solidification mechanisms during processing in distinct areas of the samples. The resulting local microstructural characteristics and mechanical properties, respectively, were determined by scanning electron microscopy and hardness measurements. The applicability of an advanced eddy current technique for reading out local differences in electro-magnetic properties was examined.
Findings
The findings show that distinct microstructural features are obtained in dependence of the locally applied laser power. These features manifest themselves not only in terms of grain morphology, texture and hardness but also induce changes in the local electro-magnetic properties. The inscribed pattern can be non-destructively visualized by using an advanced eddy current technique.
Originality/value
Conventional copy protection basically consists in supplementary labelling or surface modification. In the present study, a new method is proposed for additively manufactured parts, overcoming the drawbacks of the former methods through process-induced microstructure manipulation. Slight alterations in the electro-magnetic material properties can be detected by advanced eddy current method allowing for identification of arbitrary and inimitable component information in additively manufactured parts.