Results 61 to 70 of about 3,337,138 (296)

CEACAM1 participation in breast cancer progression

Molecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin, Irina Kube‐Golovin, Anatolii Romaniuk, Gunther Wennemuth   +3 more
wiley   +1 more source

Resolution-Preserving Speckle Reduction of SAR Images: the Benefits of Speckle Decorrelation and Targets Extraction

, 2019
International audienceSpeckle reduction is a necessary step for many applications. Very effective methods have been developed in the recent years for single-image speckle reduction and multi-temporal speckle filtering. However , to reduce the presence of
Ladjal, Saïd, Abergel, Rémy, Deledalle, Charles-Alban, Almansa, Andrés, Andres Almansa, Said Ladjal, Remy Abergel, Denis, Loïc, Tupin, Florence, Florence Tupin, Loic Denis, Charles-Alban Deledalle   +11 more
core   +1 more source

Promise and challenge of DUV speckle interferometry

, 2022
S.117-122The paper explains the benefits and the application limits of micro speckle interferometry (MSI) and it shows the potential for improvements when a deep UV laser source is used.
Aswendt, P.
core   +1 more source

Mutant p53R273H disrupts PDPK1 homodimerization and contributes to PDPK1 activation

Molecular Oncology, EarlyView.
How mutant p53R273H drives AKT signaling is unclear. We show that p53R273H, but not wild‐type, directly binds PDPK1 via a mutation‐dependent conformational change. This interaction disrupts inhibitory PDPK1 homodimerization and enhances AKT phosphorylation.
Mei Chee Lim, Alvin Kunyao Guo, Yoko Itahana, Srinivasaraghavan Kannan, Valerie Goh, Mingmin Ong, Terina Yan Wen Tay, Weiying Ye, Sabhashina Radha Krishnan, Jun Nishiyama, Chandra S Verma, Koji Itahana   +11 more
wiley   +1 more source

Regional Guidance-Based Multiscale Joint Filtering Model for SAR Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) imaging systems are characterized by their all-weather and day-and-night capabilities, enabling the acquisition of high-resolution ground imagery.
Chuang Sun, Fengcheng Guo, Zhaoling Hu, Lianpeng Zhang, Wensong Liu, Tingting Huang   +5 more
doaj   +1 more source

Study of image characteristics on digital image correlation error assessment [PDF]

, 2009
In this paper, errors related to digital image correlation (DIC) technique applied to measurements of displacements are estimated. This work is based on the generation of synthetic images representative of real speckle patterns.
Fazzini, Marina, Mistou, Sébastien, Robert, Laurent, Dalverny, Olivier, L. Robert, S. Mistou, M. Fazzini, O. Dalverny   +7 more
core   +1 more source

Speckle Reduction in SAR Images

, 2023
High-resolution synthetic aperture radar (SAR) systems with various imaging modalities, including polarimetric, interferometric, multi-frequency, and multi-temporal information, are widely used in Earth observation and remote sensing. The occurrence of speckle in SAR images, however, affects the performance of all image processing techniques and may ...
Aghababaei, Hossein, Stein, A.
openaire   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Reduction of speckle noise in laser energy distribution on the target by means of modified Fourier hologram and incoherent averaging technique

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2018
Presented in this paper is the technique of formation of required laser intensity distribution on the target with a reduced speckle noise. The method is based on the use of modified Fourier hologram adapted to controlled phase modulators.
A.G. Derzhypolskyi, O.V. Gnatovskyi, L.A. Derzhypolska   +2 more
doaj   +1 more source

Single-axis combined shearography and digital speckle photography instrument for full surface strain characterization [PDF]

, 2005
Full characterization of the surface strain requires the measurement of six displacement gradient components of the surface strain tensor. The out-of-plane displacement gradient component may be directly measured using the full-field speckle ...
Fu, S., Tatam, Ralph P., James, Stephen W., Groves, Roger M.   +3 more
core   +1 more source