The relative impact of control reliability on machinery risk

2013 ◽  
Author(s):  
Douglas S. G. Nix
Keyword(s):  
Relative Impact

scholarly journals Breathing space: deoxygenation of aquatic environments can drive differential ecological impacts across biological invasion stages

2021 ◽  
Author(s):  
James W. E. Dickey ◽  
Neil E. Coughlan ◽  
Jaimie T. A. Dick ◽  
Vincent Médoc ◽  
Monica McCard ◽  
...  
Keyword(s):  
Climate Change ◽  
Oxygen Saturation ◽  
Ecological Impacts ◽  
Neogobius Melanostomus ◽  
Aquatic Environments ◽  
Relative Impact ◽  
Low Oxygen ◽  
Per Capita ◽  
The Impact ◽  
Prey Populations

AbstractThe influence of climate change on the ecological impacts of invasive alien species (IAS) remains understudied, with deoxygenation of aquatic environments often-overlooked as a consequence of climate change. Here, we therefore assessed how oxygen saturation affects the ecological impact of a predatory invasive fish, the Ponto-Caspian round goby (Neogobius melanostomus), relative to a co-occurring endangered European native analogue, the bullhead (Cottus gobio) experiencing decline in the presence of the IAS. In individual trials and mesocosms, we assessed the effect of high, medium and low (90%, 60% and 30%) oxygen saturation on: (1) functional responses (FRs) of the IAS and native, i.e. per capita feeding rates; (2) the impact on prey populations exerted; and (3) how combined impacts of both fishes change over invasion stages (Pre-invasion, Arrival, Replacement, Proliferation). Both species showed Type II potentially destabilising FRs, but at low oxygen saturation, the invader had a significantly higher feeding rate than the native. Relative Impact Potential, combining fish per capita effects and population abundances, revealed that low oxygen saturation exacerbates the high relative impact of the invader. The Relative Total Impact Potential (RTIP), modelling both consumer species’ impacts on prey populations in a system, was consistently higher at low oxygen saturation and especially high during invader Proliferation. In the mesocosm experiment, low oxygen lowered RTIP where both species were present, but again the IAS retained high relative impact during Replacement and Proliferation stages at low oxygen. We also found evidence of multiple predator effects, principally antagonism. We highlight the threat posed to native communities by IAS alongside climate-related stressors, but note that solutions may be available to remedy hypoxia and potentially mitigate impacts across invasion stages.

Defining the relative impact of muscle versus Schwann cell denervation on functional recovery after delayed nerve repair

2021 ◽  
Vol 339 ◽  
pp. 113650
Author(s):  
Karim A. Sarhane ◽  
Benjamin R. Slavin ◽  
Nicholas Hricz ◽  
Harsha Malapati ◽  
Yi-nan Guo ◽  
...  
Keyword(s):  
Schwann Cell ◽  
Functional Recovery ◽  
Nerve Repair ◽  
Relative Impact

scholarly journals Predictors of Coping With Expectation Violation: An Integrative Review

2021 ◽  
pp. 108926802110241
Author(s):  
Martin Pinquart ◽  
Adrian Rothers ◽  
Mario Gollwitzer ◽  
Zahra Khosrowtaj ◽  
Martin Pietzsch ◽  
...  
Keyword(s):  
Empirical Support ◽  
Healthy People ◽  
Personality Characteristics ◽  
Integrative Review ◽  
Present Review ◽  
Relative Impact ◽  
Situational Characteristics ◽  
Potential Impact ◽  
Better Than

The present review investigates factors that predict three processes that lead to persistence versus change of expectations after confrontation with expectation violations, based on the violated expectation (ViolEx) model and related models. We address four groups of predictors: (a) characteristics of the expectation, (b) characteristics of the expectation-violating event(s), (c) broader situational characteristics, and (d) personality characteristics. The bulk of studies conducted in this area looked at expectation change in the direction of the experienced violation (accommodation) as their central dependent variable. The strongest empirical support was found for accommodation being less likely and minimizing of the potential impact of the discrepant information (immunization) being more likely to occur (a) after the reality turns out to be worse rather than better than expected, (b) if disconfirming events are more ambiguous, and (c) if depressed rather than healthy people are confronted with better-than-expected events. Given the high heterogeneity between studies on assessed predictors, we recommend a more comprehensive and unifying approach that tests the relative impact and the interplay of the whole range of predictors across paradigms.

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