Explanipedia

Global non-equilibrium thermodynamics of stationary states applied to the Rayleigh-Bénard convection Open

Robert Hołyst, Paweł J. Żuk, Konrad Giżyński, Anna Maciołek, J. Wróbel , et al. · 2025

Classical thermodynamics describes physical systems in thermodynamic equilibrium, characterized in particular by the absence of macroscopic motion. Global non-equilibrium thermodynamics extends this framework to include physical systems in…

Shear-stress-induced swirling flow in biological systems Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2025

Swirling motion is an essential phenomenon that significantly influences numerous biological processes, such as the mixing of molecular components within living cells, nutrient transport, the structural changes of the cytoskeletons of cont…

Role of viscoelasticity in the buckling-to-folding transition of epithelial monolayers under uni-axial compression Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2025

Suppression and enhancement of vibrational resonance by time-periodic phase modulation in a driven gyroscope Open

P. O. Adesina, U. E. Vincent, T. O. Roy-Layinde, Olusola Kolebaje, Oyebola Popoola , et al. · 2025

We have investigated the dynamics of a phase-modulated driven gyroscope, including vibrational resonance (VR) phenomena and the stability of the system, both with and without phase modulation. For appropriate choices of parameters, three d…

Interplay between viscoelasticity and stiffness as essential properties in mechanobiology Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2025

Over the last ten years, there has been a significant surge in mechanobiological research aimed at elucidating how substrate stiffness alters cell biology and the stiffness of multicellular systems. Although the concept of ‘stiffness,’ is …

Targeted elimination of mesenchymal-like cancer cells through cyclic stretch activation of Piezo1 channels: the physical aspects Open

Ivana Pajić‐Lijaković, Milan Milivojević, Boris Martinac, P. V. E. McClintock · 2025

Compressibility of biological systems: the viscoelastic Poisson’s ratio Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2025

Soft tissues carry out their vital biological functions within a dynamic mechanical framework that can be extended or compressed. Externally or internally applied uni-axial or biaxial changes induce longitudinal strains that can be of eith…

Theta and alpha connectivity in children with autism spectrum disorder Open

Samuel J K Barnes, Megan Thomas, P. V. E. McClintock, Aneta Stefanovska · 2025

Spontaneous electroencephalography (EEG) measurements have demonstrated putative variations in the neural connectivity of subjects with autism spectrum disorder, as compared to neurotypical individuals. However, the exact nature of these c…

Neurovascular phase coherence is altered in Alzheimer’s disease Open

Juliane Bjerkan, Bernard Meglič, Gemma Lancaster, Jan Kobal, P. V. E. McClintock , et al. · 2024

Alzheimer’s disease is the commonest form of dementia, but its cause still remains elusive. It is characterized by neurodegeneration, with amyloid-beta and tau aggregation. Recently, however, the roles of the vasculature and the neurovascu…

Friction in soft biological systems and surface self-organization: the role of viscoelasticity Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2024

Friction is a critical factor in the proper functioning of human organs as well as in the potential development of disease. It is also important for the design of diagnostic and interventional medical devices. Nanoscale surface roughness, …

Crisis-induced vibrational resonance in a phase-modulated periodic structure Open

P. O. Adesina, U. E. Vincent, T. O. Roy-Layinde, Olusola Kolebaje, P. V. E. McClintock · 2024

Double vibrational resonance is reported for a driven oscillator in a periodic structure of the Josephson junction type with high-frequency phase modulation. We identify two distinct phase modulation effects, namely, resonant induction and…

Vibrational resonance in bichromatically excited diatomic molecules in a shifted molecular potential Open

O. G. Abamba, Olusola Kolebaje, U. E. Vincent, P. V. E. McClintock · 2024

For bichromatically excited diatomic molecules modeled in a shifted Tietz-Wei molecular potential, we demonstrate the occurrence of vibrational resonance (VR) when a saddle-node (SN) bifurcation takes place and its nonoccurrence in the abs…

Physical aspects of epithelial cell–cell interactions: hidden system complexities Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2024

Epithelial cell-cell interactions in an overcrowded environment: jamming or live cell extrusion Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2024

Epithelial tissues respond strongly to the mechanical stress caused by collective cell migration and are able to regulate it, which is important for biological processes such as morphogenesis, wound healing, and suppression of the spread o…

Ionic Coulomb blockade controls the current in a short narrow carbon nanotube Open

W. A. T. Gibby, Miraslau L. Barabash, I. A. Khovanov, D. G. Luchinsky, P. V. E. McClintock · 2024

We use all-atom molecular dynamics simulations to investigate ionic conduction in a short, charged, single-wall carbon nanotube. They reveal ionic Coulomb blockade (ICB) oscillations in the current as a function of the fixed charge on the …

Density profile of 3He in a nanoscale 3He-4He superfluid film determined by neutron scattering Open

O. Kirichek, C. R. Lawson, C. J. Kinane, Andrew J. Caruana, S. Langridge , et al. · 2024

For decades, superfluid helium has attracted the interest of the scientific community as an extremely pure realisation of a quantum liquid, only accessible at temperatures close to absolute zero. Previously, helium films have only been obs…

Role of viscoelasticity in the appearance of low-Reynolds turbulence: considerations for modelling Open

Ivana Pajić‐Lijaković, Milan Milivojević, P. V. E. McClintock · 2024

The phase coherence of the neurovascular unit is reduced in Huntington’s disease Open

Juliane Bjerkan, Jan Kobal, Gemma Lancaster, Sanja Šešok, Bernard Meglič , et al. · 2024

Huntington’s disease is a neurodegenerative disorder in which neuronal death leads to chorea and cognitive decline. Individuals with ≥40 cytosine–adenine–guanine repeats on the interesting transcript 15 gene develop Huntington’s disease du…

Effect of a modulated acoustic field on the dynamics of a vibrating charged bubble Open

Olusola Kolebaje, U. E. Vincent, B.E. Benyeogor, P. V. E. McClintock · 2023

We investigate the effect of amplitude-modulated acoustic irradiation on the dynamics of a charged bubble vibrating in a liquid. We show that the potential V(x) of the bubble, and the number and stability of its equilibria, depend on the m…

Aging affects the phase coherence between spontaneous oscillations in brain oxygenation and neural activity Open

Juliane Bjerkan, Gemma Lancaster, Bernard Meglič, Jan Kobal, Trevor J. Crawford , et al. · 2023

The risk of neurodegenerative disorders increases with age, due to reduced vascular nutrition and impaired neural function. However, the interactions between cardiovascular dynamics and neural activity, and how these interactions evolve in…

A low-frequency, high-amplitude, torsional oscillator for studies of quantum fluids and solids Open

A. M. Guénault, P. V. E. McClintock, M.J. Poole, R. Schanen, V. Tsepelin , et al. · 2023

We introduce a low-frequency torsional oscillator suitable for studies of quantum fluids and solids. It operates at frequencies of ∼100 Hz, achieves velocities of several cm s−1, and exhibits a quality factor of Q≃3×104. In order to reach …

Visualization of oscillatory electron dynamics on the surface of liquid helium Open

Hala Siddiq, Kostyantyn Nasyedkin, Kimitoshi Kōno, D. E. Zmeev, P. V. E. McClintock , et al. · 2023

We investigate the time traces of currents induced in five segmented electrodes by the motion of electrons on the surface of liquid ⁴He at ~0.3 K, that are placed in a perpendicular magnetic field and exposed to microwave radiat…

Vinen’s Energy Barrier Open

Carlo F. Barenghi, P. V. E. McClintock, C. M. Muirhead · 2023

Delay-induced vibrational resonance in the Rayleigh–Plesset bubble oscillator Open

K.A. Omoteso, T. O. Roy-Layinde, J. A. Laoye, U. E. Vincent, P. V. E. McClintock · 2022

We examine the impacts of time-delay and phase shift between two acoustic driving forces on vibrational resonance (VR) phenomena in the oscillations of a spherical gas bubble. Using the approximate method of direct separation of the motion…

In memoriam—Polina S. Landa (15 February 1931–21 October 2022) Open

Michael G. Rosenblum, P. V. E. McClintock · 2022

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William Frank Vinen Open

Carlo F. Barenghi, P. V. E. McClintock, L. Skrbek, Katepalli R. Sreenivasan · 2022

William Frank "Joe" Vinen, a pioneer in low-temperature physics, died in Birmingham, UK, on 8 June 2022.He was born on 15 February 1930 in Watford, an English town some 15 miles northwest of London. Vinen earned his undergraduate and gradu…

Novel bursting oscillations in a nonlinear gyroscope oscillator Open

K.S. Oyeleke, O. I. Olusola, Olusola Kolebaje, U. E. Vincent, A. B. Adeloye , et al. · 2022

We report the occurrence of bursting oscillations in a gyroscope oscillator driven by low-frequency external period forcing. The bursting patterns arise when either the frequency or amplitude of the excitation force is varied. They take th…

Multi-Scale Modelling of the Bound Metal Deposition Manufacturing of Ti6Al4V Open

D. G. Luchinsky, Vasyl Hafiychuck, Kevin Wheeler, Sudipta Biswas, Christopher E. Roberts , et al. · 2022

Nonlinear shrinkage of the metal part during manufacturing by bound metal deposition, both on the ground and under microgravity, is considered. A multi-scale physics-based approach is developed to address the problem. It spans timescales f…

A low-frequency, high-amplitude, torsional oscillator for turbulence studies in quantum fluids Open

A. M. Gu'enault, P. V. E. McClintock, M. Poole, R. Schanen, V. Tsepelin , et al. · 2022

We describe a new type of torsional oscillator, suitable for studies of quantum fluids at frequencies of $\sim$ $100$ Hz, but capable of reaching high velocities of up to several cm\,s$^{-1}$. This requires the oscillator amplitude to exce…

Delay-Induced Vibrational Resonance in Rayleigh-Plesset Bubble Oscillator Open

K.A. Omoteso, T. O. Roy-Layinde, J. A. Laoye, U. E. Vincent, P. V. E. McClintock · 2022

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