Explicit control of adaptive automation under different levels of environmental stress

Ergonomics ◽  
2011 ◽  
Vol 54 (8) ◽  
pp. 755-766 ◽  
Author(s):  
Jürgen Sauer ◽  
Chung-Shan Kao ◽  
David Wastell ◽  
Peter Nickel
Keyword(s):  
Environmental Stress ◽  
Adaptive Automation ◽  
Different Levels

Allocation of Function, Adaptive Automation, and Fault Management

1998 ◽  
Vol 42 (3) ◽  
pp. 277-279
Author(s):  
Neville Moray ◽  
Toshiuki Inagaki ◽  
Makoto Itoh
Keyword(s):  
Process Control ◽  
Continuous Process ◽  
Fault Management ◽  
Control Task ◽  
Adaptive Automation ◽  
Human Control ◽  
Self Confidence ◽  
Levels Of Automation ◽  
Allocation Of Function ◽  
Different Levels

Sheridan's “Levels of Automation” were explored in an experiment on fault management of a continuous process control task which included situation adaptive automation. Levels of automation with more or less automation autonomy, and different levels of advice to the operator were compared, with automatic diagnosis whose reliability varied. The efficiency of process control and of fault management were explored under human control and automation in fault management, and aspects of the task in which human or automation were the more efficient defined. The results are related to earlier work on trust and self confidence in allocation of function by Lee, Moray, and Muir.

A comparison of adaptive and adaptable automation under different levels of environmental stress

Ergonomics ◽  
2012 ◽  
Vol 55 (8) ◽  
pp. 840-853 ◽  
Author(s):  
Juergen Sauer ◽  
Chung-Shan Kao ◽  
David Wastell
Keyword(s):  
Environmental Stress ◽  
Different Levels

scholarly journals Fluctuating Asymmetry as a Method of Assessing Environmental Stress in Two Predatory Carabid Species within Mediterranean Agroecosystems

Symmetry ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1890
Author(s):  
Lara Ivanković Tatalović ◽  
Barbara Anđelić ◽  
Mišel Jelić ◽  
Tomislav Kos ◽  
Hugo A. Benítez ◽  
...  
Keyword(s):  
Environmental Stress ◽  
Pest Management ◽  
Fluctuating Asymmetry ◽  
Agricultural Practices ◽  
Bilateral Symmetry ◽  
Carabid Beetles ◽  
Species Response ◽  
Olive Groves ◽  
Development Stability ◽  
Different Levels

Fluctuating asymmetry (FA) is used in assessing the effect of environmental stress on the development stability of individuals by measuring small random deviations from perfect bilateral symmetry. Here, we checked for FA on two predatory carabid beetles, Pterostichus melas and Poecilus koyi, in order to evaluate species response to agricultural practices within Mediterranean agroecosystems, as well as FA as a method. The samples were collected in vineyards and olive groves, both under integrated pest management (IPM) and ecological pest management (EPM), and in pristine habitats in the Mediterranean region of Croatia. Geometric morphometrics (GMMs) were used to analyze the pronotum and abdomen shape variations and left–right asymmetries of each population. In respect to the FA measurements, analyzed species responded differently, with P. koyi displaying a lower intensity of FA than P. melas. On the other hand, P. melas beetles from vineyards showed a higher intensity of FA compared with populations from pristine habitats and olive groves. Accordingly, FA pointed out olive groves as potentially less adverse habitats to predatory carabids, keeping in mind the different levels of asymmetry between the two species. Our study singled out P.melas as a more suitable species for further research, in the effect that different agricultural practices can have their impact on non-target invertebrates analyzed by measuring the FA.

Adaptive Aiding of Human-Robot Teaming

2011 ◽  
Vol 5 (2) ◽  
pp. 209-231 ◽  
Author(s):  
Ewart de Visser ◽  
Raja Parasuraman
Keyword(s):  
Team Performance ◽  
Automatic Target Recognition ◽  
Military Operations ◽  
Ground Vehicles ◽  
Adaptive Automation ◽  
Task Load ◽  
Self Confidence ◽  
Adaptive Aiding ◽  
Human Operators ◽  
Different Levels

In many emerging civilian and military operations, human operators are increasingly being tasked to supervise multiple robotic uninhabited vehicles (UVs) with the support of automation. As 100% automation reliability cannot be assured, it is important to understand the effects of automation imperfection on performance. In addition, adaptive aiding may help counter any adverse effects of static (fixed) automation. Using a high-fidelity multi-UV simulation involving both air and ground vehicles, two experiments examined the effects of automation reliability and adaptive automation on human-system performance with different levels of task load. In Experiment 1, participants performed a reconnaissance mission while assisted with an automatic target recognition (ATR) system whose reliability was low, medium, or high. Overall human-robot team performance was higher than with either human or ATR performance alone. In Experiment 2, participants performed a similar reconnaissance mission with no ATR, static automation, or with adaptive automation keyed to task load. Participant trust and self-confidence were higher and workload was lower for adaptive automation compared with the other conditions. The results show that human-robot teams can benefit from imperfect static automation even in high task load conditions and that adaptive automation can provide additional benefits in trust and workload.

Abnormalities of the attachment clamps of representatives of the family Diplozoidae

2002 ◽  
Vol 76 (3) ◽  
pp. 249-259 ◽  
Author(s):  
Š. Šebelová ◽  
B. Kuperman ◽  
M. Gelnar
Keyword(s):  
Water Pollution ◽  
Czech Republic ◽  
Comparative Study ◽  
Environmental Stress ◽  
Eastern Europe ◽  
River Systems ◽  
Structural Alterations ◽  
The Family ◽  
Different Levels

AbstractA comparative study has been made of the haptoral morphology of four species of diplozoon (Monogenea: Diplozoidae) from the gills of fish exposed to different levels of water pollution in two river systems in eastern Europe. An examination of the haptors of Paradiplozoon homoion (Bychowsky & Nagibina 1959), Paradiplozoon ergensi (Pejčoch 1968) and Paradiplozoon megan (Bychowsky & Nagibina 1959) from chub caught in the River Morava, Czech Republic and of Diplozoon paradoxum (Nordmann 1832) from bream recovered from the River Volga, Russia has revealed abnormalities to the attachment clamps. Two abnormal conditions were found: structural alterations to the attachment clamps and changes in the number of attachment clamps; these occurred both singly and in combination. A higher frequency of abnormal attachment clamps was found in diplozoons from fish caught in the more polluted localities of both rivers. The abnormalities have been recorded and their morphology compared in the light of conditions of environmental stress.

scholarly journals Climate-related environmental stress in intertidal grazers: scaling-up biochemical responses to assemblage-level processes

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2533 ◽  
Author(s):  
Elena Maggi ◽  
Mario Cappiello ◽  
Antonella Del Corso ◽  
Francesca Lenzarini ◽  
Eleonora Peroni ◽  
...  
Keyword(s):  
Climate Change ◽  
Body Size ◽  
Environmental Stress ◽  
Scale Up ◽  
Interaction Strength ◽  
Ecological Impacts ◽  
Clear Understanding ◽  
Biological Organization ◽  
Biochemical Responses ◽  
Different Levels

BackgroundOrganisms are facing increasing levels of environmental stress under climate change that may severely affect the functioning of biological systems at different levels of organization. Growing evidence suggests that reduction in body size is a universal response of organisms to global warming. However, a clear understanding of whether extreme climate events will impose selection directly on phenotypic plastic responses and how these responses affect ecological interactions has remained elusive.MethodsWe experimentally investigated the effects of extreme desiccation events on antioxidant defense mechanisms of a rocky intertidal gastropod (Patella ulyssiponensis), and evaluated how these effects scaled-up at the population and assemblage levels.ResultsWith increasing levels of desiccation stress, limpets showed significant lower levels of total glutathione, tended to grow less and had reduced per capita interaction strength on their resources.DiscussionResults suggested that phenotypic plasticity (i.e., reduction in adults’ body size) allowed buffering biochemical responses to stress to scale-up at the assemblage level. Unveiling the linkages among different levels of biological organization is key to develop indicators that can anticipate large-scale ecological impacts of climate change.

Sign in / Sign up

Export Citation Format

Share Document