Results 51 to 60 of about 16,724,170 (299)

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Sub‐Pixel Displacement Estimation With Deep Learning: Application to Optical Satellite Images Containing Sharp Displacements

Journal of Geophysical Research: Machine Learning and Computation
Optical image correlation is a powerful method for remotely constraining ground movement from optical satellite imagery related to natural disasters (e.g., earthquakes, volcanoes, landslides).
Tristan Montagnon, Sophie Giffard‐Roisin, Mauro Dalla Mura, Mathilde Marchandon, Erwan Pathier, James Hollingsworth   +5 more
doaj   +1 more source

A Robust Subpixel Motion Estimation Algorithm Using HOS in the Parametric Domain

EURASIP Journal on Image and Video Processing, 2009
Motion estimation techniques are widely used in todays video processing systems. The most frequently used techniques are the optical flow method and phase correlation method. The vast majority of these algorithms consider noise-free data.
Ibn-Elhaj E, Ismaili Aalaoui EM, Bouyakhf EH   +2 more
doaj   +2 more sources

Cross Complementary Fusion Network for Video Salient Object Detection

IEEE Access, 2020
Recently, optical flow guided video saliency detection methods have achieved high performance. However, the computation cost of optical flow is usually expensive, which limits the applications of these methods in time-critical scenarios. In this article,
Ziyang Wang, Junxia Li, Zefeng Pan
doaj   +1 more source

Cryptanalysis of optical security systems with significant output images [PDF]

, 2007
The security of the encryption and verification techniques with significant output images is examined by a known-plaintext attack. We introduce an iterative phase-retrieval algorithm based on multiple intensity measurements to heuristically estimate the ...
Guohai Situ, Situ, Guohai, Monaghan, David S., Unnikrishnan Gopinathan, John T. Sheridan, Gopinathan, Unnikrishnan, David S. Monaghan, Sheridan, John T.   +7 more
core   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Pengolahan Citra Obyek dari Balik Penghambur dengan Metoda Optik (Tapis Ruang) dan Metoda Digital (“Or Minimum”)

Journal of Mathematical and Fundamental Sciences, 2013
 In this paper, optical and digital methods are combined to improve the quality of the image obtained through a scattering medium. The optical method, using simply an imaging positive lens and a small circular spatial filter, succeded in the first stage
E. Juliastuti, A. Handojo, Bambang S. P. Abednego, Moedji Raharto   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Performance Testing of Optical Flow Time Series Analyses Based on a Fast, High-Alpine Landslide

Remote Sensing, 2022
Accurate remote analyses of high-alpine landslides are a key requirement for future alpine safety. In critical stages of alpine landslide evolution, UAS (unmanned aerial system) data can be employed using image registration to derive ground motion with ...
Doris Hermle, Michele Gaeta, Michael Krautblatter, Paolo Mazzanti, Markus Keuschnig   +4 more
doaj   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source