Results 71 to 80 of about 30,274 (242)

Simulation‐Informed Evaluation of Microvascular Parameter Mapping for Diffusion MR Imaging of Solid Tumours

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose We aim to inform the design of new diffusion MRI (dMRI) approaches for microvasculature quantification that enhance the biological specificity of imaging towards cancer. Methods We adopted simulation‐informed modelling of the vascular dMRI signal. We synthesised signals from 1500 synthetic vascular networks, for a variety of protocols (
Anna Kira Voronova, Olivia Prior, Athanasios Grigoriou, Francesc Salvà, Elena Elez, Luz M. Atlagich, Roser Sala‐Llonch, Marco Palombo, Els Fieremans, Dmitry S. Novikov, Raquel Perez‐Lopez, Francesco Grussu   +11 more
wiley   +1 more source

Blind recognition of STBC based on higher-order cumulants

Tongxin xuebao, 2016
Aiming at the problems for blind recognition of space-time block code(STBC)in MIMO communication sys-tems,a method was exploited based on higher-order cumulants of received signals.Firstly,the model of received signals was given and the fourth-order ...
Li-min ZHANG, Qing LING, Wen-jun YAN
doaj   +2 more sources

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

Small, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira, Hiroshi Kamizawa, Yujiro Hamada, Wataru Fushimoto, Hiroshi Y. Yoshikawa, Yuji Higaki, Atsushi Takahara, Takeshi Mori, Yoshiki Katayama, Akihiro Kishimura   +9 more
wiley   +1 more source

Higher-order mesoscopic fluctuations in quantum wires: Conductance and current cumulants

, 2006
We study conductance cumulants $>$ and current cumulants $C_j$ related to heat and electrical transport in coherent mesoscopic quantum wires near the diffusive regime.
B. L. Altshuler, B. L. Altshuler, Jani Särkkä, K. B. Efetov, M. L. Mehta, Markku P. V. Stenberg, O. N. Dorokhov, O. N. Dorokhov, S. Helgason, T. Dittrich, W. Belzig   +10 more
core   +1 more source

Specification Tests for Jump‐Diffusion Models Based on the Characteristic Function

International Statistical Review, EarlyView.
Summary Goodness‐of‐fit tests are suggested for several popular jump‐diffusion processes. The suggested test statistics utilise the marginal characteristic function of the model and its L2‐type discrepancy from an empirical counterpart. Model parameters are estimated either by minimising the aforementioned L2‐type discrepancy or by maximum likelihood ...
Gerrit Lodewicus Grobler, Denis Belomestny, Simos George Meintanis, Emanuele Taufer   +3 more
wiley   +1 more source

Cumulative Subtraction Games [PDF]

The Electronic Journal of Combinatorics, 2019
We study a variation of Nim-type subtraction games, called Cumulative Subtraction (CS). Two players alternate in removing pebbles out of a joint pile, and their actions add or remove points to a common score. We prove that the zero-sum outcome in optimal play of a CS with a finite number of possible actions is eventually periodic, with period $2s ...
Cohensius, Gal, Larsson, Urban, Meir, Reshef, Wahlstedt, David   +3 more
openaire   +3 more sources

Finite-Size Scaling at Phase Coexistence

, 1993
{}From a finite-size scaling (FSS) theory of cumulants of the order parameter at phase coexistence points, we reconstruct the scaling of the moments.
A. Irbäck, Baker, Berg, Berg, Billoire, Billoire, Binder, Borgs, Borgs, Borgs, Challa, Domb, Fisher, Gaunt, Isakov, Lee, M. Ohlsson, Sourendu Gupta   +17 more
core   +3 more sources

On Exponential‐Family INGARCH Models

Journal of Time Series Analysis, EarlyView.
ABSTRACT A range of integer‐valued generalised autoregressive conditional heteroscedastic (INGARCH) models have been proposed in the literature, including those based on conditional Poisson, negative binomial and Conway‐Maxwell‐Poisson distributions. This note considers a larger class of exponential‐family INGARCH models, showing that maximum empirical
Alan Huang, Thomas Fung, Kyle Macaskill, Rowan Aukes   +3 more
wiley   +1 more source

Generalized Lyapunov Exponent and Transmission Statistics in One-dimensional Gaussian Correlated Potentials

, 2010
Distribution of the transmission coefficient T of a long system with a correlated Gaussian disorder is studied analytically and numerically in terms of the generalized Lyapunov exponent (LE) and the cumulants of lnT.
A. Iomin, E. Gurevich, I. M. Lifshitz, J. W. Goodman, L. Pastur, M. Abramowitz, P. A. Mello, P. Hänggi, R. A. Horn, S. Kotani, V. I. Kliatskin   +10 more
core   +1 more source

Functional Sieve Bootstrap for the Partial Sum Process With an Application to Change‐Point Detection

Journal of Time Series Analysis, EarlyView.
ABSTRACT This article applies the functional sieve bootstrap (FSB) to estimate the distribution of the partial sum process for time series stemming from a weakly stationary functional process. Consistency of the FSB procedure under weak assumptions on the underlying functional process is established.
Efstathios Paparoditis, Lea Wegner, Martin Wendler   +2 more
wiley   +1 more source