Overcrowded classrooms – The Achilles heel of South African education?
South African Journal of Childhood Education, 2020 Background: The South African education system is characterised by a shortage of teachers and inadequate school infrastructure which is contributing to the overcrowded nature of South African classrooms.
Joyce West, Corinne Meier
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Impact of stress on hemostasis: A review
Consilium Medicum, 2023 The article presents an overview of current views of changes in the hemostasis system in response to stress. Stress-induced neurohormonal responses activate the clotting system and inhibit the fibrinolysis system, leading to hypercoagulation.
Vladimir V. Salukhov +4 more
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Different paths, same destination: divergent action potential responses produce conserved cardiac fight-or-flight response in mouse and rabbit hearts. [PDF]
J Physiol, 2019 Sympathetic activation of the heart results in positive chronotropy and inotropy, which together rapidly increase cardiac output. The precise mechanisms that produce the electrophysiological and Ca2+ handling changes underlying chronotropic and inotropic
Wang L +11 more
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On the Coexistence of Monitoring and Dampening of Pain Perception During the Fight-or-Flight Response. [PDF]
CureusRaffa RB, Fink W, Tripathi AD.
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eLife, 2021 Phospholamban (PLN) is a mini-membrane protein that directly controls the cardiac Ca2+-transport response to β-adrenergic stimulation, thus modulating cardiac output during the fight-or-flight response.
Daniel K Weber +9 more
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Fight or Flight: The Ethics of Emergency Physician Disaster Response [PDF]
Annals of Emergency Medicine, 2008 Most disaster plans depend on using emergency physicians, nurses, emergency department support staff, and out-of-hospital personnel to maintain the health care system's front line during crises that involve personal risk to themselves or their families. Planners automatically assume that emergency health care workers will respond.
Iserson, Kenneth V. +5 more
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Pathophysiological functions of semaphorins in the sympathetic nervous system
Inflammation and Regeneration, 2023 Upon exposure to external stressors, the body senses them and activates the sympathetic nervous system (SNS) to maintain the homeostasis, which is known as the “fight-or-flight” response. Recent studies have revealed that the SNS also plays pivotal roles
Yumiko Mizuno +2 more
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Empathy Modulates the Effect of Stress Reactivity on Generous Giving
Frontiers in Neuroscience, 2022 How does acute stress influence the degree to which we cooperate with others? Research on the effects of stress on social decision-making is guided by two seemingly contrasting theories.
Hagar Azulay +5 more
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Predator-induced changes in metabolism cannot explain the growth/predation risk tradeoff. [PDF]
PLoS ONE, 2009 Defence against predators is usually accompanied by declining rates of growth or development. The classical growth/predation risk tradeoff assumes reduced activity as the cause of these declines.
Ulrich K Steiner, Josh Van Buskirk
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Bacterial fight-and-flight responses enhance virulence in a polymicrobial infection [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance Polymicrobial synergy occurs when infections caused by more than one species are more severe than the sum of the individual species acting alone. Here, we show that a bacterial fight-and-flight response to an antimicrobial, hydrogen peroxide (H 2 O
Apollo, Stacy +5 more
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