Results 61 to 70 of about 1,626,663 (291)
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Dizhen xuebao, 2022 静态效应一直是影响大地电磁测深法精确性的主要原因之一。在相位校正法的基础上提出了一种更适用于电性变化较为平缓的地质情况的静态校正方法—最高频相位法，其核心是用需要校正测点两侧受静态效应影响较小测点的最高频视电阻率的算术平均值代替相位法递推公式中每个频点前一个频点的视电阻率值，以消除相位法中的误差积累。以二维模型的正反演为例，通过对比空间滤波法、相位法和最高频相位法对不同模型静态校正前后的正反演结果，证明了最高频相位法的有效性和优越性，同时表明，对于电阻率变化大并且静态位移严重的水平层状地层模型 ...
Wei Guo, Xingong Tang, Guanqun Sheng
doaj +1 more source
Scale-dependent correction to the dynamical conductivity of a disordered system at unitary symmetry
, 2012 Anderson localization has been studied extensively for more than half a century. However, while our understanding has been greatly enhanced by calculations based on a small epsilon expansion in d = 2 + epsilon dimensions in the framework of non-linear ...
Muttalib, K. A. +3 more
core +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
Influence of phase correction on the acoustic impedance of circular planar sources
Archives of Acoustics, 2014 In this work, the influence of velocity distribution phase correction on the acoustic impedance of a circular source located in an infinite baffle is analyzed.
Paweł KOS, Lucyna LENIOWSKA
doaj
A Correction Approach for the Inclined Array of Hydrophones in Synthetic Aperture Sonar
Sensors, 2018 A correction approach for the inclined array of hydrophones is proposed to prevent decline of the image quality in SAS. In this approach, the 2-way exact acoustic propagation path of the inclined array is transformed into the sum of a single root term ...
Haoran Wu, Jinsong Tang, Heping Zhong
doaj +1 more source
Journal of Cardiovascular Magnetic Resonance, 2020 Background Cardiovascular magnetic resonance (CMR) phase contrast (PC) flow measurements suffer from phase offset errors. Background subtraction based on stationary phantom measurements can most reliably be used to overcome this inaccuracy.
Savine C. S. Minderhoud +9 more
doaj +1 more source
Technology in Cancer Research & Treatment, 2022 To assess the stability of patient-specific phase shifts between external- and internal-respiratory motion waveforms, the reliability of enhanced external–internal correlation with phase-shift correction, and the feasibility of guiding respiratory-gated ...
Andrew Milewski MD, PhD, Guang Li PhD
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