Aircrew Actual vs. Prescriptive Sleep Schedules and Resulting Fatigue Estimates

2021 ◽  
Vol 92 (10) ◽  
pp. 806-814
Author(s):  
Megan B. Morris ◽  
Bella Z. Veksler ◽  
Michael A. Krusmark ◽  
Alex R. Gaines ◽  
Helen L. Jantscher ◽  
...  

BACKGROUND: Fatigue is an insidious and costly occurrence in the aviation community, commonly a consequence of insufficient sleep. Some organizations use scheduling tools to generate prescriptive sleep schedules to help aircrew manage their fatigue. It is important to examine whether aircrew follow these prescriptive schedules, especially in very dynamic environments. The current study compares aircrew sleep during missions to prescriptive sleep schedules generated by a mission scheduling tool. METHODS: Participating in the study were 44 volunteers (Mage= 28.23, SDage= 4.23; Proportionmale= 77.27%) from a C-17 mobility squadron providing 25 instances of sleep and mission data (80 flights total). Aircrew wore actigraph watches to measure sleep during missions and prescriptive sleep schedules were collected. Actual and prescriptive sleep was compared with calculated performance effectiveness values per minute across mission flights. RESULTS: Prescriptive schedules generally overestimated effectiveness during missions relative to estimated actual sleep, potentially causing shifts in effectiveness to ranges of increased risk requiring elevated fatigue mitigation efforts. Actual and prescriptive effectiveness estimates tended to increasingly diverge over the course of missions, which magnifies differences on longer missions. DISCUSSION: The current study suggests that aircrew sleep during missions often does not align with prescriptive sleep schedules generated by mission planning software, resulting in effectiveness estimates that are generally lower than predicted. This might discourage aircrew from using mission effectiveness graphs as a fatigue mitigation tool. Additionally, because fatigue estimates factor into overall operational risk management processes, these schedules might underestimate risks to safety, performance, and health. Morris MB, Veksler BZ, Krusmark MA, Gaines AR, Jantscher HL, Gunzelmann G. Aircrew actual vs. prescriptive sleep schedules and resulting fatigue estimates. Aerosp Med Hum Perform. 2021; 92(10):806814.

SAGE Open ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 215824401668023 ◽  
Author(s):  
Therese R. Viscelli ◽  
Mark S. Beasley ◽  
Dana R. Hermanson

In recent years, expectations for increased risk governance have been placed explicitly on boards of directors. In response, boards are being held responsible for not only understanding and approving management’s risk management processes, but they are also being held responsible for assessing the risks identified by those processes as part of overseeing management’s pursuit of value. These increasing responsibilities have led a number of organizations to adopt enterprise risk management (ERM) as a holistic approach to risk management that extends beyond traditional silo-based risk management techniques. As boards, often through their audit committee, consider management’s implementation of ERM as part of the board’s risk oversight, a number of questions emerge that can be informed by academic research related to ERM. This article summarizes findings from ERM research to provide insights related to the board’s risk governance responsibilities. We also identify a number of research questions that warrant further analysis by governance scholars. It is our hope that this article will spawn varying types of research about ERM and corporate governance.


2021 ◽  
Vol 14 (5) ◽  
pp. 211
Author(s):  
Iryna Yanenkova ◽  
Yuliia Nehoda ◽  
Svetlana Drobyazko ◽  
Andrii Zavhorodnii ◽  
Lyudmyla Berezovska

This article deals with the issue of managing bank credit risk using a cost risk model. Modeling of bank credit risk management was proposed based on neural-cell technologies, which expand the possibilities of modeling complex objects and processes and provide high reliability of credit risk determination. The purpose of the article is to improve and develop methodical support and practical recommendations for reducing the level of risk based on the value-at-risk (VaR) methodology and its subsequent combination with methods of fuzzy programming and symbiotic methodical support. The model makes it possible to create decision support subsystems for nonperforming loan management based on the neuro-fuzzy approach. For this paper, economic and mathematical tools (based on the VaR methodology) were used, which made it possible to analyze and forecast the dynamics of overdue payment; assess the quality of the credit portfolio of the bank; determine possible trends in bank development. A scientific and practical approach is taken to assess and forecast the degree of credit problematicity by qualitative criteria using a mathematical model based on a fuzzy technology, which can forecast the increased risk of loan default at an early stage in the process of monitoring the loan portfolio and model forecasting changes in the degree of credit problematicity on change of indicators. A methodology is proposed for the analysis and forecasting of indicators of troubled loan debt, which should be implemented as software and included in the decision support system during the process of monitoring the risk of the bank’s credit portfolio.


2021 ◽  
Author(s):  
Amy Vincent ◽  
Sead Alihodzic ◽  
Stephen Gale

When electoral risks are not understood and addressed, they can undermine the credibility of the process and the results it yields. Electoral management bodies (EMBs) encounter numerous risks across all phases of the electoral cycle. They operate in environments that are increasingly complex and volatile and where factors such as technology, demographics, insecurity, inaccurate or incomplete information and natural calamities, create increasing uncertainty. The experiences of EMBs show that when formal risk management processes are successfully implemented, the benefits are profound. Greater risk awareness helps organizations to focus their resources on where they are most needed, thus achieving cost-effectiveness. Over the last decade it has been observed that EMBs are increasingly moving from informal to formal risk management processes. The purpose of this Guide is to lay out a set of practical steps for EMBs on how to establish or advance their risk management framework. The Guide’s chapters reflect the breadth of key considerations in the implementation process and offer basic resources to assist in the process.


Information ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 248 ◽  
Author(s):  
Sérgio Andrade deFreitas ◽  
Edna Canedo ◽  
Rodrigo Santos Felisdório ◽  
Heloise Leão

The Information and Communication Technology Master Plan—ICTMP—is an important tool for the achievement of the strategic business objectives of public and private organizations. In the public sector, these objectives are closely related to the provision of benefits to society. Information and Communication Technology (ICT) actions are present in all organizational processes and involves size-able budgets. The risks inherent in the planning of ICT actions need to be considered for ICT to add value to the business and to maximize the return on investment to the population. In this context, this work intends to examine the use of risk management processes in the development of ICTMPs in the Brazilian public sector.


2017 ◽  
Vol 59 (4) ◽  
pp. 504-521 ◽  
Author(s):  
Ralph Schuhmann ◽  
Bert Eichhorn

PurposeThe aim of this paper is to pursue three objectives: to assess the extent to which theoretical concepts and corporate practice are reflecting the contract’s risk management dimensions; to identify ways to make full usage of the contract’s risk dimensions for risk management purposes; to overcome the isolation of the contract caused by its perception as a legal instrument by integrating its handling into the overall corporate management processes. Design/methodology/approachLiterature is analyzed regarding the contract’s roles as a source of risk and as a risk management device. Based on the relevant findings, it uses the Contractual Management Model to develop a concept that integrates all contract-related risk management processes in an enterprise. FindingsThe paper redefines the term “contract risk” in the light of modern understanding of contract functions and contract purposes. It shows that only Contractual Risk Management theory takes the management capacity of the contract fully into account. A Contractual Risk Management process is suggested which integrates all contract-related corporate management processes and aligns them to the requirements of transaction risk management and enterprise risk management. Originality/valueThe paper may guide executives to optimize corporate risk management processes through a better understanding of the risk potential of contract and of its risk management capacity. It provides a checklist of redefined contract risks as well as a concept that, for the first time, is aligning all contract-related management processes to support the corporate risk management system.


2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Tshepo Moshodi ◽  
Christo Coetzee ◽  
Kristel Fourie

The Merafong Local Municipality (MLM) has historically suffered financial and human losses because of the presence of dolomite and the consequent formation of sinkholes. There is a great need for the MLM to address the risk posed by sinkholes to ensure the continued safety of communities. However, as the risk is so pervasive, the MLM needs to coordinate their risk reduction strategies with a wide array of stakeholders in the municipality. Efficient stakeholder management is thus crucial if the sinkhole risk is to be addressed appropriately. This article reviews the current status of stakeholder management in the MLM as it pertains to the formulation of a holistic sinkhole risk reduction strategy. Findings indicate that there are serious deficiencies in the MLM’s stakeholder management relating to key risk management processes such as community involvement in risk management structures, disaster risk assessment, training and awareness, and early warning and response. Improved stakeholder management could be characterised by the following factors: improved two-way communication between the municipality and community stakeholders, fostering a relationship based upon trust and equality amongst stakeholders, participation by a wide array of stakeholder groups affected by the sinkhole risk and a mutual commitment by all stakeholders to address the risk. These factors could contribute to enhancing current and future sinkhole risk reduction strategies.


Sign in / Sign up

Export Citation Format

Share Document