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Article
Publication date: 12 January 2022

Nazim Ata, Berna Aytac, Dijan Ertemir, Muzaffer Cetinguc and Ebru Yazgan

Aeromedical training is meant to train aircrew in combating physiological problems that they might face in flight. Given the importance of the training, there are limited studies…

Abstract

Purpose

Aeromedical training is meant to train aircrew in combating physiological problems that they might face in flight. Given the importance of the training, there are limited studies in the literature investigating the anxiety levels during aeromedical training along with training outcomes. This study aims to assess the untrained participants’ anxiety levels before and after aeromedical training, investigate the differences in anxiety levels across different physiological training devices and determine whether participants’ anxiety levels affect their G tolerances.

Design/methodology/approach

This study was carried out on 61 healthy male subjects (n = 61) who had applied for initial aeromedical training. Anxiety surveys and visual analog scales were administered before and after the practical aeromedical training. In addition, blood pressure and heart rate measurements were carried out.

Findings

Participants had significantly higher anxiety levels before human centrifuge training (pre-Glab) than before the altitude chamber training (pre-hypobaric). Participants who experienced G-induced loss of consciousness (G-LOC) had slightly more anxiety reported than the non-G-LOC group. There was a significant decrease between pre-Glab and post-Glab (after the human centrifuge training) and between pre-hypobaric and post-hypobaric (after the altitude chamber training) anxiety levels. The incidence of G-LOC was lower in participants having higher pre-G-Lab blood pressure. However, the difference in anxiety levels between the G-LOC group and the non-G-LOC group was not statistically significant.

Research limitations/implications

In this study, state anxiety inventory was not performed after human centrifuge training as centrifuge training lasted for around 5 min only, and it is not advisable to repeat state anxiety inventory in such short periods. Blood pressure was not measured after G-Lab training because human centrifuge training is hard training and has an impact on blood pressure. Hence, it would have been difficult to distinguish whether the blood pressure change was due to anxiety or hard physical activity. These limitations, especially for the G-Lab, caused us to evaluate state anxiety only with VAS. It would be worthwhile to repeat similar studies with objective measurements before and after the training.

Practical implications

This information suggests that instructors who train the applicants on aerospace medicine be ready for the possible consequences of anxiety.

Originality/value

There are only a few centers in the world that include all the physiological training devices (practical aeromedical training laboratories) together. To the best of authors’ knowledge, there are no studies in the literature investigating the differences in anxiety levels across various physiological training devices. The studies about the effect of anxiety levels on aeromedical training outcomes and anxiety levels before and after the training are scant.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 5
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 1 May 1969

THE 28th International Air and Space Show at Le Bourget will be the largest yet held. One hundred and twenty‐five British companies will be taking part and this number represents…

Abstract

THE 28th International Air and Space Show at Le Bourget will be the largest yet held. One hundred and twenty‐five British companies will be taking part and this number represents well over 90 per cent of the British aerospace industry's production and research capacity. The theme of British participants will be ‘Aerospace through the Seventies’ and displays will include illustrations of projects for the next decade, as well as current products and research programmes. The Salon has been organized so that each day will be devoted to emphasizing a particular aspect of aeronautical activity: 29th May Press Preview; 30th May Official Opening Day; 31st May Philatelists Day and Aerospace Orientation Day; 1st June General and Business Aviation; 2nd June Aeromedical Aviation; 3rd June Electronics Industry; 4th June Equipment Industry; 5th June Rotary Wing Industry and Special Steel Studies; 6th June Foreign Missions Day; 1th June International Flying Display; 8th June International Air Display. The Show will be open to the public every day from 9.30 a.m. to 6.30 p.m., except on Friday 6th June which will be Foreign Missions Day and admission will then be by invitation only.

Details

Aircraft Engineering and Aerospace Technology, vol. 41 no. 5
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 16 August 2022

Secil Ozkan Ata, Canan Akay, Emre Mumcu and Nazim Ata

The purpose of this study is to test the shear-bond-strengths of auto-mixed and manual-mixed self-adhesive resin cement to dentin on long-term high-altitude pressure.

Abstract

Purpose

The purpose of this study is to test the shear-bond-strengths of auto-mixed and manual-mixed self-adhesive resin cement to dentin on long-term high-altitude pressure.

Design/methodology/approach

Human molars were embedded in acrylic resin. Sixty composite resin discs were obtained. The composite resin discs were bonded to dentin using hand-mixed and auto-mixed self-adhesive resin cement. After cementation, the samples were stored in artificial saliva and divided into two subgroups (n = 30), hypobaric pressure and the atmospheric pressure group. The specimen underwent three pressure cycles per day for 100 days. The failure types were evaluated after debonding with scanning electron microscopy. The shear bond strength was tested with Universal Testing Machine. Analysis of variances/Tukey post hoc tests were used for statistical analysis. Groups were also evaluated by the Weibull modulus.

Findings

Regardless of hypobaric pressure changes, the highest bond strength was examined in auto-mixed Panavia SA samples. A significant difference was found in both auto-mixed MaxCem EC and hand-mixed RelyX U200 group after exposure to hypobaric pressure compared to the control group.

Originality/value

The luting cement-type, mixing methods of cements and environmental pressure changes significantly influence the bond strengths. Dentists can use auto-mixed self-adhesive resins in patients likely to be exposed to hypobaric pressure.

Details

Aircraft Engineering and Aerospace Technology, vol. 95 no. 2
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 24 March 2022

Secil Ozkan Ata, Canan Akay and Nazim Ata

The purpose of this study was to investigate the effect of the environmental pressure changes on the bond strength between zirconia ceramics and adhesive resin cement.

Abstract

Purpose

The purpose of this study was to investigate the effect of the environmental pressure changes on the bond strength between zirconia ceramics and adhesive resin cement.

Design/methodology/approach

In total, 40 rectangular-shaped zirconium-oxide ceramic specimens were prepared. For surface modification, all zirconia specimens were sandblasted with 50 μm alumina particles. The composite resin discs were bonded to modified zirconia surfaces with resin cement. The specimens were divided into four groups; hyperbaric, hypobaric, hyperbaric + hypobaric and control group. The specimen underwent pressure cycles for 30 days. The shear bond strength test was performed by using the universal testing machine, and failures of the debonded samples were examined with scanning electron microscopy and light microscope.

Findings

No significant difference in bond strength was found between the hyperbaric, hypobaric and control groups after 30 days (p > 0.05). However, there was a significant difference in the hyperbaric + hypobaric group compared to the control group (p = 0.022). Also, the Weibull modulus was highest in control group and lowest in the hyperbaric + hypobaric group.

Originality/value

Barometric changes due to flying followed by diving may have an adverse effect on the retention of zirconia ceramics. Care should be taken in the selection of materials for dental treatment of people who are exposed to environmental pressure changes.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 8
Type: Research Article
ISSN: 1748-8842

Keywords

Book part
Publication date: 17 October 2022

Stephanie Douglas

In the aviation sector adversity faced by female pilots stemming from stereotypes, prejudice, and discrimination are well documented. Such adversity in the workplace can cause

Abstract

In the aviation sector adversity faced by female pilots stemming from stereotypes, prejudice, and discrimination are well documented. Such adversity in the workplace can cause occupational stress, which may be greater for female pilots, and this influences individual resiliency, impacting job performance and wellbeing. Resilience may be a mitigating factor for coping with occupational stress and individual resilience can be factored into an organisation’s resilience as a whole. When organisations face challenges, there is a need for resilience in order to survive and adapt during disruption and adversity. Resilience with respect to employee and workplace contexts includes both personal resources among the employees as well as workplace resources that are connected to the workplace and organisational environment. As resilience continues to emerge as part of a human capital management strategy, the need to understand the role of the workplace is magnified. For aviation, understanding resilience can potentially inform organisational interventions to address the known occupational stressors and workplace adversity to increase employee performance and well-being. The role of workplace adversity and perceptions of workplace resource availability including supportive environments are discussed in relation to how they influence employee resilience specifically in the aviation industry. The aim of this chapter is to define resilience specific to employee and workplace contexts, introduce personal and workplace resources to influence employee resilience, and discuss the role of occupational stressors specifically for women in male-dominated career fields such as aviation.

Abstract

Details

The Handbook of Road Safety Measures
Type: Book
ISBN: 978-1-84855-250-0

Book part
Publication date: 30 December 2004

Elizabeth S. Redden, James B. Sheehy and Eileen A. Bjorkman

This chapter provides an overview of the Department of Defense (DoD) laboratory structure to help equipment designers, modelers, and manufacturers determine where research…

Abstract

This chapter provides an overview of the Department of Defense (DoD) laboratory structure to help equipment designers, modelers, and manufacturers determine where research, testing programs, or relevant findings can be found. The chapter includes a discussion of the performance measures and metrics typically used in DoD laboratories and concludes by considering the current state-of-the-art as well as the state-of-the-possible for human performance measurement.

Details

The Science and Simulation of Human Performance
Type: Book
ISBN: 978-1-84950-296-2

Article
Publication date: 1 October 1982

BOB KEFFORD

The UH‐60A BLACK HAWK helicopter, Fig. 1, is the US Army's first true squad carrying assault helicopter. Its primary mission is to transport infantry units into combat, re‐supply…

Abstract

The UH‐60A BLACK HAWK helicopter, Fig. 1, is the US Army's first true squad carrying assault helicopter. Its primary mission is to transport infantry units into combat, re‐supply those units while in combat, and perform the associated functions of aeromedical evacuation and repositioning of reserves.

Details

Aircraft Engineering and Aerospace Technology, vol. 54 no. 10
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 December 1992

Organised in four sessions this Conference featured papers on Aircrew/Passenger Survival Equipment and Procedures; Safe Helicopter Handling in Adverse Conditions; Aviation…

Abstract

Organised in four sessions this Conference featured papers on Aircrew/Passenger Survival Equipment and Procedures; Safe Helicopter Handling in Adverse Conditions; Aviation Medicine and Human Factors; and Crashworthiness Requirements on Advanced Helicopter Operations. Information and products were shown by Helicopter International/Helidata News; Dunlop Beaufort; SAFE (Europe) Chapter; Bristol Aerospace; Multifabs Survival; and Design Tech & Mullion Manufacturing. Delegates came from many civil and military organisations worldwide and represented a range of specialised knowledge which was reflected in the contributions.

Details

Aircraft Engineering and Aerospace Technology, vol. 64 no. 12
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 January 1995

Terry Ford

Among the interesting papers at a recent conference was a contribution which detailed the US Army Aviation and Troop Command's Aviation Applied Technology Directorate (AATD…

Abstract

Among the interesting papers at a recent conference was a contribution which detailed the US Army Aviation and Troop Command's Aviation Applied Technology Directorate (AATD) initiated research on cockpit air bags. Based on actual mishap data — a member of an aircrew may survive an accident with only minor injuries, whereas the gunner, for example, receives fatal injuries owing to his head flailing into the rigid telescopic sighting unit.

Details

Aircraft Engineering and Aerospace Technology, vol. 67 no. 1
Type: Research Article
ISSN: 0002-2667

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