Results 41 to 50 of about 825,951 (286)

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, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Size Biased Fréchet Distribution: Properties and Statistical Inference

Journal of Statistical Theory and Applications (JSTA)
Fréchet distribution, initially introduced by (Fréchet, M. (1927) Ann de la Soc), is usually used for modeling several extreme random phenomena, while several generalizations of this distribution are available in the statistical literature (Phaphan, W ...
G. Tzavelas, A. Batsidis, P. Economou
doaj   +1 more source

Weighted Ranked Set Sampling for Skewed Distributions

Mathematics
Ranked set sampling (RSS) is a useful technique for improving the estimator of a population mean when the sampling units in a study can be more easily ranked than the actual measurement. RSS performs better than simple random sampling (SRS) when the mean
Dinesh S. Bhoj, Girish Chandra
doaj   +1 more source

Approximation and Uncertainty Quantification of Systems with Arbitrary Parameter Distributions using Weighted Leja Interpolation

Algorithms, 2020
Approximation and uncertainty quantification methods based on Lagrange interpolation are typically abandoned in cases where the probability distributions of one or more system parameters are not normal, uniform, or closely related distributions, due to ...
Dimitrios Loukrezis, Herbert De Gersem
doaj   +1 more source

Distributed weighted matching

, 2003
Technical Report / Department of Computer Science, ETH Zurich ...
Wattenhofer, Mirjam, Wattenhofer, Roger
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

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, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Quark helicity distributions in transverse momentum space and transverse coordinate space

, 2013
The transverse momentum dependent helicity distributions of valence quarks are calculated in the light-cone diquark model by adopting two different approaches.
Lu, Zhun, Ma, Bo-Qiang
core   +1 more source

Weighted distances in scale-free preferential attachment models

, 2020
We study three preferential attachment models where the parameters are such that the asymptotic degree distribution has infinite variance. Every edge is equipped with a non-negative i.i.d. weight.
Alves C., Athreya K., Berger N., der Hofstad R., der Hofstad R., Dereich S., Hammersley J.M., Harris T.E., Komjáthy J., Travers J.   +9 more
core   +1 more source

The impact of worldwide, national and sub-national severity distributions in Burden of Disease studies: A case study of cancers in Scotland.

PLoS ONE, 2019
BackgroundIncreasingly Burden of Disease (BOD) measures are being used to influence policy decisions because they summarise the complete effects of morbidity and mortality in an equitable manner.
Grant M A Wyper, Ian Grant, Eilidh Fletcher, Gerry McCartney, Diane L Stockton   +4 more
doaj   +1 more source

How can citation impact in bibliometrics be normalized? A new approach combining citing-side normalization and citation percentiles

Quantitative Science Studies, 2020
Since the 1980s, many different methods have been proposed to field-normalize citations. In this study, an approach is introduced that combines two previously introduced methods: citing-side normalization and citation percentiles.
Lutz Bornmann
doaj   +1 more source