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Description of steady-state creep rate with continuously varying stress sensitivity parameter and upper limits of applied stress.
Heliyon
January 2025
Dept. of Mathematics and Physics, Military Technology Faculty, University of Defence, Kounicova 65, CZ-662 10, Brno, Czech Republic.
The steady-state creep rate increases with working temperature according to the Arrhenius law and with applied stress according to the power law. The dependence on both the variables is usually expressed as the product of the Arrhenius law and the power law, where a constant value of the apparent activation energy is assumed. As the exponent of the power law, called the stress sensitivity parameter and dependent on the deformation micromechanism, a specific integer is taken.
View Article and Find Full Text PDFTransfer of congruency effects between Stroop and multiplication tasks: Evidence that retrieval of multiplication facts requires inhibitory control.
Cognition
January 2025
School of Psychology, University of Nottingham, Nottingham, United Kingdom. Electronic address:
Inhibitory control is classically considered a domain-general process, yet recent findings suggest it may operate in context-specific ways. This has important implications for theories in other cognitive domains, such as mathematics, in which inhibitory control is proposed to play a key role. Inhibitory control has been implicated in resolving interference between competing number facts when retrieving them from memory, yet clear evidence for this is lacking.
View Article and Find Full Text PDFThe Potential Metalloestrogenic Effect of Aluminum on Breast Cancer Risk for Antiperspirant Users.
Int J Mol Sci
December 2024
Students' Scientific Society at the Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland.
The etiopathogenesis of breast cancer depends on genetic conditions, but recently more attention has been paid to the dependence of BC on certain environmental factors, for example, metalloestrogens, which include aluminum (Al) contained in antiperspirants used daily. The use of Al derivatives in antiperspirants in concentrations specified by the FDA, as well as European regulations (SCCS, 2020), do not classify Al as a hazardous and carcinogenic substance for humans. However, Al used to treat excessive sweating raises concerns, as many in vitro studies indicate that it can cause gene instability, change gene expression or increase oxidative stress, and also affect the body's hormonal balance as a metalloestrogen.
View Article and Find Full Text PDFFacts, Dogmas, and Unknowns About Mitochondrial Reactive Oxygen Species in Cancer.
Antioxidants (Basel)
December 2024
Department of Drug Discovery & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425, USA.
Cancer metabolism is sustained both by enhanced aerobic glycolysis, characteristic of the Warburg phenotype, and oxidative metabolism. Cell survival and proliferation depends on a dynamic equilibrium between mitochondrial function and glycolysis, which is heterogeneous between tumors and even within the same tumor. During oxidative phosphorylation, electrons from NADH and FADH originated in the tricarboxylic acid cycle flow through complexes of the electron transport chain.
View Article and Find Full Text PDFThe case for neurons: a no-go theorem for consciousness on a chip.
Neurosci Conscious
December 2024
Department of Philosophy, Institute of Technology Futures, Karlsruhe Institute of Technology, Douglasstraße 24, Karlsruhe 76133, Germany.
We apply the methodology of no-go theorems as developed in physics to the question of artificial consciousness. The result is a no-go theorem which shows that under a general assumption, called dynamical relevance, Artificial Intelligence (AI) systems that run on contemporary computer chips cannot be conscious. Consciousness is dynamically relevant, simply put, if, according to a theory of consciousness, it is relevant for the temporal evolution of a system's states.
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