Results 61 to 70 of about 1,172,088 (296)

Exploring Microbial Dynamics and Heat Transmission in a Nonlinear Radiative Maxwell Nanomaterial With Sensitivity Analysis

Advances in Mathematical Physics
In the automotive, electronics, and energy sectors, heat exchangers and cooling systems can be improved by the flow dynamics of thermally enriched nanomaterials across enlarged surfaces. In biomicrosystems, bionanocooling units, and the petroleum sector,
B. M. Jewel Rana, Saiful Islam, Md. Yousuf Ali, Md. Mamun Molla   +3 more
doaj   +1 more source

Thermodynamics of modified Chaplygin-Jacobi gas and modified Chaplygin-Abel gas: Stability analysis and observational constraints

Nuclear Physics B
This paper explores the thermodynamic properties and stability of two newly introduced gas models, namely the Modified Chaplygin-Jacobi gas and the Modified Chaplygin-Abel gas.
Banadipa Chakraborty, Tamal Mukhopadhyay, Debojyoti Mondal, Ujjal Debnath   +3 more
doaj   +1 more source

A non-abelian analogue of DBI from $T \overline{T}$

SciPost Physics, 2020
The Dirac action describes the physics of the Nambu-Goldstone scalars found on branes. The Born-Infeld action defines a non-linear theory of electrodynamics. The combined Dirac-Born-Infeld (DBI) action describes the leading interactions supported on a
T. Daniel Brennan, Christian Ferko, Savdeep Sethi
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Voltaire, Maupertuis and the 18th century debate on the principle of least action: scientific and extrascientific features

Filosofia Unisinos, 2021
Towards the middle of the 18th century, Pierre-Louis Moreau de Maupertuis proposed the “principle of least action” as a fundamental law of physics and as a proof of the existence of God. Samuel König and other contemporary authors criticized Maupertuis’
Roberto de Andrade Martins, Ana Paula Bispo da Silva   +1 more
doaj  

Decoupling in an expanding universe: boundary RG-flow affects initial conditions for inflation

, 2004
We study decoupling in FRW spacetimes, emphasizing a Lagrangian description throughout. To account for the vacuum choice ambiguity in cosmological settings, we introduce an arbitrary boundary action representing the initial conditions.
A. Strominger, A.A. Starobinsky, A.J. Hamilton, C. Grosse-Knetter, C.P. Burgess, C.P. Burgess, C.P. Burgess, C.P. Burgess, D. Deutsch, D.J.H. Chung, E. Witten, F. Larsen, F. Larsen, G. Barton, Gary Shiu, H. Collins, H. Collins, J. Martin, J. Martin, J.P. van der Schaar, Jan Pieter van der Schaar, K. Goldstein, K. Goldstein, K. Graham, Koenraad Schalm, M. Bastero-Gil, M.B. Einhorn, M.B. Einhorn, N. Kaloper, N.D. Birrell, O. Aharony, P. Candelas, R. Easther, R.G. Leigh, R.H. Brandenberger, R.L. Jaffe, S. Shankaranarayanan, T. Banks, T. Tanaka, U.H. Danielsson, V. Bozza, Y. Aghababaie   +41 more
core   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Using representational gesture to enact instants in collaborative problem solving in physics

Physical Review Physics Education Research
Embodied forms of representation like gesture have been shown to play an important role in how learners conceptualize phenomena in physics; however, we know little about how students use gesture to capture the idea of instantaneity. Drawing on multimodal
Emma Teresa Booth, Virginia J. Flood, Benedikt W. Harrer   +2 more
doaj   +1 more source