Results 81 to 90 of about 581,508 (291)

A ~ 12 kpc HI extension and other HI asymmetries in the isolated galaxy CIG 340 (IC 2487)

, 2014
HI kinematic asymmetries are common in late-type galaxies irrespective of environment, although the amplitudes are strikingly low in isolated galaxies.
Argudo-Fernandez, M., Athanassoula, E., Bosma, A., Espada, D., Montenegro, L. Verdes, Scott, T. C., Sengupta, C., Sulentic, J., Yun, M. S.   +8 more
core   +3 more sources

A MAP equalizer for the optical communications channel [PDF]

Journal of Lightwave Technology, 2004
A maximum a posteriori equalizer is presented for optical communication systems. Assuming that the span of the intersymbol interference (ISI) does not extend beyond the neighboring bits - as is typically the case for the distortion introduced by polarization mode dispersion (PMD) - we derive the conditional probability distribution function in the ...
Wenze Xi, Tülay Adali, John Zweck
openaire   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Cardiac Optogenetics and Optical Mapping – Overcoming Spectral Congestion in All-Optical Cardiac Electrophysiology

Frontiers in Physiology, 2019
Optogenetic control of the heart is an emergent technology that offers unparalleled spatio-temporal control of cardiac dynamics via light-sensitive ion pumps and channels (opsins). This fast-evolving technique holds broad scope in both clinical and basic
Christopher O’Shea, Christopher O’Shea, Christopher O’Shea, Andrew P. Holmes, Andrew P. Holmes, James Winter, Joao Correia, Xianhong Ou, Ruirui Dong, Shicheng He, Paulus Kirchhof, Paulus Kirchhof, Larissa Fabritz, Larissa Fabritz, Kashif Rajpoot, Davor Pavlovic   +15 more
doaj   +1 more source

Sub-wavelength surface IR imaging of soft-condensed matter

, 2010
Outlined here is a technique for sub-wavelength infrared surface imaging performed using a phase matched optical parametric oscillator laser and an atomic force microscope as the detection mechanism.
Aizpurua, Albrecht, Betzig, Brehm, Cvitkovic, Dazzi, Dazzi, Duchet, Formanek, Fragola, G. A. Hill, Hammiche, Hammiche, Hammiche, Hill, Horcas, Houel, J. H. Rice, Jung, K. Vodopyanov, M. Reading, Mayet, P. Kuo, Reading, Rice, S. R. Meech, Subrahmanyam, Vilaplana, Vodopyanov   +28 more
core   +3 more sources

Optical mapping of electromechanics in intact organs [PDF]

Experimental Biology and Medicine, 2019
Optical mapping has become a widely used and important method in cardiac electrophysiology. The method typically uses voltage-sensitive fluorescent dyes and high-speed cameras to image propagation of electrical waves. However, signals are highly susceptible to artifact caused by motion of the target organ.
Haley W Nesmith, Hanyu Zhang, Jack M Rogers   +2 more
openaire   +2 more sources

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Efficient Image Registration for Underwater Optical Mapping Using Geometric Invariants

Journal of Marine Science and Engineering, 2019
Image registration is one of the most fundamental and widely used tools in optical mapping applications. It is mostly achieved by extracting and matching salient points (features) described by vectors (feature descriptors) from images. While matching the
Armagan Elibol, Nak Young Chong
doaj   +1 more source

Optical mapping at increased illumination intensities [PDF]

Journal of Biomedical Optics, 2012
Voltage-sensitive fluorescent dyes have become a major tool in cardiac and neuro-electrophysiology. Achieving high signal-to-noise ratios requires increased illumination intensities, which may cause photobleaching and phototoxicity. The optimal range of illumination intensities varies for different dyes and must be evaluated individually.
Giedrius, Kanaporis, Irma, Martišienė, Jonas, Jurevičius, Rūta, Vosyliūtė, Antanas, Navalinskas, Rimantas, Treinys, Arvydas, Matiukas, Arkady M, Pertsov   +7 more
openaire   +2 more sources

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