Results 81 to 90 of about 6,503,562 (275)

Practical design equations for rectangular wire helical springs

open access: yesNihon Kikai Gakkai ronbunshu
Helical springs are used for many mechanisms. Rectangular wire helical springs are used in machines that require large spring loads, such as press machines, die machines, injection molding machines, construction machines, and load testing machines ...
Minoru TABATA
doaj   +1 more source

A Hypothesis in Simplicity for the Mechanism that Generates Equations in the Brain [PDF]

open access: yesJournal of Interdisciplinary Sciences, 2021
Numbers and equations are a product of the mind. They are not the outside world, but are a model of it because both systems, internal and external, are independently generated according to the same principles, even the same mechanisms. Using arguments,
William L. Abler
doaj  

Gravitating fluids with Lie symmetries

open access: yes, 2010
We analyse the underlying nonlinear partial differential equation which arises in the study of gravitating flat fluid plates of embedding class one. Our interest in this equation lies in discussing new solutions that can be found by means of Lie point ...
A M Msomi   +9 more
core   +1 more source

WDVV Equations

open access: yesIl Nuovo Cimento C, 2015
The paper aims to point out a novel geometric characterisation of the WDVV equations of 2D topological field theory.
openaire   +2 more sources

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Effects of correction equation for actual sodium concentration on the reduction in frequency of reports on pseudohyponatremia

open access: yesJournal of Laboratory Medicine, 2020
Serum sodium concentration could be spuriously reduced by excess glucose or lipid; thus, hyponatremia should be reassessed before reporting in order to exclude the possibility of pseudohyponatremia.
Cho Jooyoung, Uh Young, Choi Seong Jin
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Fractional Liouville Equation on Lattice Phase-Space

open access: yes, 2015
In this paper we propose a lattice analog of phase-space fractional Liouville equation. The Liouville equation for phase-space lattice with long-range jumps of power-law types is suggested.
Tarasov, Vasily E.
core   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Propagation-Dispersion Equation

open access: yes, 2002
A {\em propagation-dispersion equation} is derived for the first passage distribution function of a particle moving on a substrate with time delays. The equation is obtained as the continuous limit of the {\em first visit equation}, an exact microscopic ...
Boon, Jean Pierre   +2 more
core  

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