Results 51 to 60 of about 656,054 (293)
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
Journal of Materials Research and Technology, 2021 In this investigation, microstructural evolution and mechanical properties of an X52 microalloyed steel processed by a full scale industrial electric resistance welding (ERW) equipment was studied. The need for adequate level of mechanical properties, in
S.H. Mousavi Anijdan +5 more
doaj +1 more source
$B \to \pi l\bar{\nu}$ Form Factors with NRQCD Heavy Quark and Clover Light Quark Actions [PDF]
, 1999 We report results on semileptonic $B\to\pi l\bar{\nu}$ decay form factors near $q^2_{\rm max}$ using NRQCD heavy quark and clover light quark actions and currents improved through $O(\alpha a)$.
A. Ukawa +23 more
core +2 more sources
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
, 2009 The charge pion polarizability is calculated in the Nambu-Jona-Lasinio model, where the quark loops (in the mean field approximation) and the meson loops (in the $1/N_c$ approximation) are taken into account.
A. V. Guskov +16 more
core +1 more source
The Quark Form Factor at Higher Orders [PDF]
, 2005 We study the electromagnetic on-shell form factor of quarks in massless perturbative QCD. We derive the complete pole part in dimensional regularization at three loops, and extend the resummation of the form factor to the next-to-next-to-leading ...
Moch, S., Vermaseren, J. A. M., Vogt, A.
core +2 more sources
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
工程科学学报, 2017 Pole figures measured using X-ray diffractometry were used to analyze the orientation of crystalline hydroxylapatite (HAP) in the scales and fins of seawater Lateolabrax japonicus.
YUAN Lei +4 more
doaj +1 more source
Is thyroid nodule location associated with malignancy risk? [PDF]
Ultrasonography, 2019 Purpose Nodules located in the upper pole of the thyroid may carry a greater risk for malignancy than those in the lower pole. We conducted a study to analyze the risk of malignancy of nodules depending on location.
Valeria Ramundo +9 more
doaj +1 more source
Model-independent study of the QCD sum rule for the pi NN coupling constant
, 2002 We reinvestigate the QCD sum rule for the pi NN coupling constant, g, starting from the vacuum-to-pion matrix element of the correlation function of the interpolating fields of two nucleons.
H. Kim +12 more
core +1 more source