scholarly journals Stressors, Coping Mechanisms, and Uplifts of Commercial Fishing in Alaska: A Qualitative Approach to Factors Affecting Human Performance in Extreme Environments

Author(s):  
Jennifer Pickett ◽  
Joeri Hofmans
2017 ◽  
Vol 10 (2) ◽  
pp. 196-217 ◽  
Author(s):  
Michael L. Naraine ◽  
Milena M. Parent

This study’s purpose was to uncover national sport organizations’ (NSOs) perceptions of social media to understand how social media are situated and implemented. Specifically, the study sought to understand the perceived utility of social media, the rationale for the content produced and disseminated, and the factors affecting social-media implementation. Through semistructured interviews with Canadian NSOs, results were grouped into 3 themes: the value of social media (i.e., benefits, potential, and credibility), social-media use (i.e., content, types of social-media platforms, and rationale/motivations), and the challenges associated with social media (i.e., capacity, language issues, stakeholders engagement or lack thereof, and resistance). NSOs implement social media solely for business-to-consumer purposes. Social media act as a “double-edged sword”: NSOs believe that a good social-media presence requires sufficient resources but remain unconvinced of the “true” strategic value of social media.


Author(s):  
Joseph L. Seminara ◽  
Richard J. Shavelson

The purpose of this study was to examine the combined effects of simulated lunar environmental variables on human performance. A facility was developed to simulate the following aspects of the astronaut's lunar environment: confinement within a lunar shelter habitat with an oxygen-enriched atmosphere, high-risk vacuum, ⅙ g., lunar “terrain” characteristics, and space suit encumbrances. Four subjects were confined for five days in a simulated lunar shelter. During the fourth and fifth days, two subjects each made two simulated sorties outside the shelter. Basic maintenance and control tasks were performed under ⅙ g.; pressurized space suit conditions were at chamber altitudes at 18,000 and 100,000 ft., respectively. Results of this testing at altitude were compared with baseline measures conducted under ambient sea level conditions. It was concluded that the combined effect of the simulated lunar environment variables can substantially degrade certain categories of astronaut performance. The reduced pressure of altitude as well as ⅙ g. and space suit encumbrances appear to be significant factors affecting man's performance.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ruilin Zhu ◽  
Jinyuan Zhang

Purpose Grappling with the sweeping pandemic, the small hospitality business (SHB), smaller in scale and weaker in risk mitigation, has been seriously affected. The purpose of this study aims to supplement the unrepresented area of SHB in China from the digital perspective by drawing on instrumentalization theory (IT). Design/methodology/approach Based on two appropriate and detailed SHB cases, this paper adopted a qualitative approach to understand and conceptualize the focal issue. Findings This study identified the factors affecting SHB at operational, managerial and transformational levels amidst the crisis. It further developed a theoretical framework of the SHB rebound matrix, highlighting the importance of digitization and digitalization. Research limitations/implications The research theoretically confirmed that SHB is internally, externally and essentially restricted and developed a corresponding rebound matrix. It practically supports SHB’s transformation by making recommendations to unleash the potential of digital business. Originality/value This study complements extant descriptive and atheoretical research by focusing on SHB’s underlying digital nature through the lens of IT, providing an evidenced theoretical understanding of SHB’s development amidst and after the pandemic.


Author(s):  
Malik Khlaif Gharaibeh ◽  
Muhammad Rafie Arshad ◽  
Natheer K. Gharaibeh

<p class="0abstract">The main purpose of this study is to investigate the determinants that affect the adoption of mobile banking services in Jordan. The current study extends the Unified Theory of Acceptance and Use of Technolgy2 (UTAUT2) by adding two important factors, mass media and trust utilizing by seven respondents based on qualitative approach, this study shows that the adoption of mobile banking is positively and significantly influenced by the mass media, trust, effort expectancy, performance expectancy, facilitating conditions, and social influence. In contrast, hedonic motivation seems to be insignificantly related to adoption of mobile banking services. There are numerous variables affect the of adoption mobile banking. While most previous studies address the relationship between these factors and the attitudes toward mobile banking services by using the quantitative approaches, this study adopts qualitative approach (focus group method) to provide further insight into the main factors which affect adoption of mobile banking. Furthermore, the current study extends the original UTAUT2 by testing the impact of two new variables. This is considered the important contribution in the paper.</p>


REACH ◽  
2019 ◽  
Vol 14-15 ◽  
pp. 100032
Author(s):  
Camilla Kienast ◽  
Hanns-Christian Gunga ◽  
Mathias Steinach

Author(s):  
Robert Sottilare ◽  
Stephen Goldberg

This chapter examines the potential benefits of computer-based adaptive instruction to human performance during the training of tasks usually conducted in extremely stressful work environments (e.g., law enforcement, firefighting, emergency medicine, or combat) that often include time, performance, and safety stressors. Adaptive instruction is training in which a computer-based intelligent tutoring system tailors its interaction with the learner to optimize learning and adapts the training environment (e.g., simulation) to maintain challenge level and flow. The design goal of adaptive instruction for tasks in extreme environments is to influence knowledge and skill acquisition to the point where the learner can successfully perform the expected tasks during training and then successfully transfer those skills to the work environment and perform regardless of the conditions. This chapter includes recommendations for representing and adapting work environment stressors during adaptive instruction to optimize learning and transfer of skills and is written for training developers.


Author(s):  
Guoxi Zhang ◽  
Robert G. Feyen

Prioritizing tasks appropriately is particularly critical when performing multiple tasks concurrently. Although necessary to achieve one's goals or avoid serious consequences, prioritization has not received much attention in the research literature, especially with respect to modeling human performance computationally. A conceptual framework that integrates several motivational theories, empirical studies, and neuroscience research is proposed to guide future studies of dynamic prioritization in multiple-goal contexts. Rooted in control theory, the proposed framework illustrates self-regulation processes in prioritizing tasks and explicitly shows important factors affecting the prioritization process so that empirical results can be integrated into the framework and future studies can be inferred. By illustrating information flow in the self-regulation processes and the brain structures associated with prioritization, the framework should help facilitate development of robust computational models of task prioritization.


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