Results 41 to 50 of about 78,267 (285)
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
On the Performance of Multihop Heterodyne FSO Systems With Pointing Errors
IEEE Photonics Journal, 2015 This paper reports the end-to-end performance analysis of a multihop free-space optical system with amplify-and-forward (AF) channel-state-information (CSI)-assisted or fixed-gain relays using heterodyne detection over Gamma-Gamma turbulence fading with ...
Emna Zedini, Mohamed-Slim Alouini
doaj +1 more source
Micromachines, 2023 One of the key reasons for the deterioration of antenna pointing accuracy for radio telescopes is the deformation and tilt of antenna alidades, which primarily result from track unevenness and thermal gradients.
Qian Xu, Fei Xue, Hui Wang, Letian Yi
doaj +1 more source
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
CIRCLING INTERFACE: AN ALTERNATIVE INTERACTION METHOD FOR ON-SCREEN OBJECT MANIPULATION [PDF]
, 2013 An alternative interaction method, called the circling interface, was developed and evaluated for individuals with disabilities who find it difficult or impossible to consistently and efficiently perform pointing operations involving the left and right ...
Ka, Hyun
core
Performance evaluation of FSO MIMO links in Gamma-Gamma fading with pointing errors
, 2015 In this paper, we study the equal gain combining (EGC) scheme in free space optical (FSO) multiple-input multiple-output (MIMO) communication systems over the Gamma-Gamma fading channel with pointing errors.
Ghassemlooy, Zabih +3 more
core +1 more source
Advances in AstronomyThe need for precise radio telescope pointing has driven great attention to investigating the effect of antenna local deformation or irregularity, such as unevenness in the azimuth track.
Ye Yuan, Zhi-Yong Liu, Na Wang
doaj +1 more source
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 +4 more
wiley +1 more source
Pointing Calibration for Spaceborne Doppler Scatterometers
Remote SensingDoppler scatterometers have demonstrated the ability to measure wide-swath ocean surface currents from airborne platforms. Since platform velocities for spaceborne platforms are almost two orders of magnitude larger, errors in the knowledge of the ...
Ernesto Rodríguez +4 more
doaj +1 more source
Outage Probability Analysis of FSO Links Over Foggy Channel
IEEE Photonics Journal, 2017 Outdoor free-space optic (FSO) communication systems are sensitive to atmospheric impairments, such as turbulence and fog, in addition to being subject to pointing errors.
Maged Abdullah Esmail +2 more
doaj +1 more source