Results 51 to 60 of about 118,114 (295)

Correction of distortion for optimal image stacking in Wide Field Adaptive Optics: Application to GeMS data

, 2016
The advent of Wide Field Adaptive Optics (WFAO) systems marks the beginning of a new era in high spatial resolution imaging. The newly commissioned Gemini South Multi-Conjugate Adaptive Optics System (GeMS) combined with the infrared camera Gemini South ...
Andersen, M., Bernard, A., Bounissou, S., Fusco, T., Mugnier, L. M., Neichel, B., Plana, H., Samal, M., Zavagno, A.   +8 more
core   +3 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

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, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Research on Adaptive Optics Image Restoration Algorithm by Improved Expectation Maximization Method

Abstract and Applied Analysis, 2014
To improve the effect of adaptive optics images’ restoration, we put forward a deconvolution algorithm improved by the EM algorithm which joints multiframe adaptive optics images based on expectation-maximization theory.
Lijuan Zhang, Dongming Li, Wei Su, Jinhua Yang, Yutong Jiang   +4 more
doaj   +1 more source

Insights into Sickle Cell Disease through the Retinal Microvasculature

Ophthalmology Science, 2022
Purpose: Clinical OCT angiography (OCTA) of the retinal microvasculature offers a quantitative correlate to systemic disease burden and treatment efficacy in sickle cell disease (SCD).
Alexander Pinhas, MD, Justin V. Migacz, PhD, Davis B. Zhou, MD, Maria V. Castanos Toral, MD, Oscar Otero-Marquez, MD, Sharon Israel, BA, Vincent Sun, MD, Peter N. Gillette, MD, Nripun Sredar, PhD, Alfredo Dubra, PhD, Jeffrey Glassberg, MD, Richard B. Rosen, MD, Toco Y.P. Chui, PhD   +12 more
doaj   +1 more source

Commissioning ShARCS: the Shane Adaptive optics infraRed Camera-Spectrograph for the Lick Observatory 3-m telescope

, 2014
We describe the design and first-light early science performance of the Shane Adaptive optics infraRed Camera-Spectrograph (ShARCS) on Lick Observatory's 3-m Shane telescope. Designed to work with the new ShaneAO adaptive optics system, ShARCS is capable
Alcott, Barry, Cowley, David, Deich, William, Dillon, Daren, Gates, Elinor, Gates, John, Gavel, Donald, Kupke, Renate, Lanclos, Kyle, McGurk, Rosalie, Norton, Andrew, Peck, Michael, Pfister, Terry, Rockosi, Constance, Sandford, Dale, Saylor, Mike, Srinath, Srikar, Ward, Jim, Weiss, Jason   +18 more
core   +1 more source

Reference-less detection, astrometry, and photometry of faint companions with adaptive optics [PDF]

, 2009
We propose a complete framework for the detection, astrometry, and photometry of faint companions from a sequence of adaptive optics corrected short exposures. The algorithms exploit the difference in statistics between the on-axis and off-axis intensity.
Beuzit, Biller, Born, Fitzgerald, Gladysz, Gladysz, Guyon, Hinkley, Itoh, Julian C. Christou, Labeyrie, Lafrenière, Marois, Marois, Masciadri, Roberts, Soummer, Soummer, Sparks, Szymon Gladysz   +19 more
core   +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

Apollon Real-Time Adaptive Optics: astronomy-inspired wavefront stabilization in ultraintense lasers

High Power Laser Science and Engineering
Traditional wavefront control in high-energy, high-intensity laser systems usually lacks real-time capability, failing to address dynamic aberrations.
J. B. Ohland, N. Lebas, V. Deo, O. Guyon, F. Mathieu, P. Audebert, D. Papadopoulos   +6 more
doaj   +1 more source

A Local Threshold Checkerboard Algorithm for Adaptive Optics System With a Plenoptic Sensor

IEEE Photonics Journal, 2022
Adaptive optics systems will encounter challenges under strong atmospheric turbulence conditions. Recently, a modified approach based on plenoptic sensor has attracted considerable attention.
Zhichong Wang, Tao Chen, Xudong Lin, Liang Wang, Qichang An, Jintian Hu   +5 more
doaj   +1 more source

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