Results 51 to 60 of about 5,259,893 (375)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Thermal tunability in terahertz metamaterials fabricated on strontium titanate single crystal substrates

open access: yes, 2011
We report an experimental demonstration of thermal tuning of resonance frequency in a planar terahertz metamaterial consisting of a gold split-ring resonator array fabricated on a bulk single crystal strontium titanate (SrTiO3) substrate.
Abul K. Azad   +19 more
core   +1 more source

Effects of Turbulence, Eccentricity Damping, and Migration Rate on the Capture of Planets into Mean Motion Resonance [PDF]

open access: yes, 2010
Pairs of migrating extrasolar planets often lock into mean motion resonance as they drift inward. This paper studies the convergent migration of giant planets (driven by a circumstellar disk) and determines the probability that they are captured into ...
Abramowitz   +27 more
core   +2 more sources

Resonant reheating

open access: yesJournal of Cosmology and Astroparticle Physics
AbstractWe investigate a novel reheating scenario proceeding through s-channel inflaton annihilation, mediated by a massive scalar. If the inflatonϕoscillates around the minimum of a monomial potential ∝ϕn, we reveal the emergence of resonance phenomena originating from the dynamic evolution of the inflaton mass forn>2.
Basabendu Barman   +2 more
openaire   +2 more sources

Vibrational resonance [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2000
Summary: The effect of a high-frequency force on the response of a bistable system to a low-frequency signal is considered for both the overdamped and weakly damped cases. It is shown that the response can be optimized by an appropriate choice of vibration amplitude.
Landa, P. S., McClintock, Peter V. E.
openaire   +2 more sources

Magnetic Resonance Imaging of the lumbar spine in people without back pain

open access: yesAL-QADISIYAH MEDICAL JOURNAL, 2017
Background: The relation between abnormalities in the lumbar spine and low back pain is controversial ,incidental findings might lead to additional testing & the potential for unnecessary intervention.Objective: We examined the prevalence of abnormal ...
Nada R. Alharis
semanticscholar   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Seventy-Two-Hour Preservation, Resuscitation, and Transplantation of an Isolated Rat Heart with High Partial Pressure Carbon Monoxide Gas (PCO = 400 hPa) and High Partial Pressure Carbon Dioxide (PCO = 100 hPa)

open access: yesCell Transplantation, 2012
The cardiac cavity of an isolated rat heart was filled with a Krebs-Henseleit (KH) solution, and the heart was hung in a high-pressure chamber. After the high-pressure chamber had been filled with a mixed gas (PCO = 400 hPa, PCO 2 = 100 hPa, PO 2 = 900 ...
Naoyuki Hatayama   +2 more
doaj   +1 more source

Rays of light from the LHC [PDF]

open access: yes, 2016
We consider models for the di-photon resonance observed at ATLAS (with 3.6 fb^{-1}) and CMS (with 2.6 fb^{-1}). We find there is no conflict between the signal reported at 13 TeV, and the constraints from both experiments at 8 TeV with 20.3 fb^{-1}.
Knapen, Simon   +3 more
core   +3 more sources

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

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