Results 101 to 110 of about 891,103 (297)
Timing of vessel imaging for suspected large vessel occlusions does not affect groin puncture time in transfer patients with stroke. [PDF]
, 2018 BACKGROUND: Access to endovascular therapy (ET) in cases of acute ischemic stroke may be limited, and rapid transfer of eligible patients to hospitals with endovascular capability is needed.
Dhamoon, Mandip S. +5 more
core +1 more source
Calculation of acoustic parameters by a filter-correlation method [PDF]
, 1993 This paper presents the filter correlation method, a technique for extracting consistent and accurate estimates of attenuation parameters from acoustic waveform data.
Courtney, Robert C., Mayer, Larry A.
core +2 more sources
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS 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
Puzzles in Time Delay and Fermat Principle in Gravitational Lensing [PDF]
, 2011 The current standard time delay formula (CSTD) in gravitational lensing and its claimed relation to the lens equation through Fermat's principle (least time principle) have been puzzling to the author for some time.
Rhie, Sun Hong
core
Time after time – circadian clocks through the lens of oscillator theory
FEBS 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
Time‐difference‐of‐arrival regularised location estimator for multilateration systems
IET Radar, Sonar & Navigation, 2014 A new version of an open form localisation algorithm, called regularised location estimator (RLE), for time difference of arrival (TDOA) multilateration systems is proposed. This algorithm is based on Tikhonov regularisation and on maximum‐likelihood estimation. It is aimed to solve the localisation problem for both well‐conditioned and ill‐conditioned
Mantilla Gaviria, I +3 more
openaire +2 more sources
Testing the Einstein's equivalence principle with polarized gamma-ray bursts
, 2017 The Einstein's equivalence principle can be tested by using parameterized post-Newtonian parameters, of which the parameter $\gamma$ has been constrained by comparing the arrival times of photons with different energies.
Lei, Wei-Hua +4 more
core +1 more source
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
Time Delay in Swiss Cheese Gravitational Lensing
, 2010 We compute time delays for gravitational lensing in a flat LambdaCDM Swiss cheese universe. We assume a primary and secondary pair of light rays are deflected by a single point mass condensation described by a Kottler metric (Schwarzschild with Lambda ...
Chen, Bin, Dai, Xinyu, Kantowski, Ronald
core +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source