Results 111 to 120 of about 10,062 (264)

Transverse Relaxation Time Constant of Cystathionine in Human Glioma at 3 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cystathionine (Cth) has emerged as a promising biomarker for identifying 1p/19q codeleted gliomas. However, little is known about the T2 relaxation time constant of Cth in gliomas. The aim of this study was to measure the T2 of Cth in vivo in glioma and compare it to the T2s of other metabolites at 3 T.
Dinesh K. Deelchand, Francesca Branzoli, Jamie D. Walls, Lucia Nichelli, Marc Sanson, Bertrand Mathon, Małgorzata Marjańska   +6 more
wiley   +1 more source

Solution of a Volterra integral equation by the Sinc-collocation method

, 2007
In this paper a collocation procedure is developed for a linear Volterra integral equation of the second kind by using the Sinc basis functions. The approximate solutions are given so that the auxiliary basis functions satisfy the four different end ...
Rashidinia, J., Zarebnia, M.
core   +1 more source

A sinc function analogue of chebfun

, 2016
Chebfun is an established software system for computing with functions of a real variable, but its capabilities for handling functions with singularities are limited. Here an analogous system is described based on sinc function expansions instead of Chebyshev series.
Richardson, M, Trefethen, L
openaire   +1 more source

Ventilation Imaging of the Lung at 0.55T With Continuous Slice Cycling

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To propose and evaluate a novel method for pulmonary ventilation imaging, offering considerably improved SNR. Methods A continuous slice cycling (CSC) acquisition scheme is proposed to exclusively capture signal modulations from respiratory motion with increased SNR.
Andrea Leuthard, Grzegorz Bauman, Katrin E. Hostettler, Maurice Pradella, Oliver Bieri   +4 more
wiley   +1 more source

New Applications and Improvements of Sinc Functions for Solving a System of Fredholm Integral Equations

Axioms
This study introduces two novel methodologies for solving systems of Fredholm integral equations, with particular emphasis on second-kind equations. The first method integrates the Sinc-collocation technique with a newly developed singular exponential ...
Saeed Althubiti, Abdelaziz Mennouni
doaj   +1 more source

A Modified Balanced Steady State Free Precession Sequence for Overhauser Magnetic Resonance Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Low‐ and ultralow‐field magnetic resonance imaging (ULF MRI) have inherently low signal‐to‐noise ratio (SNR) by design. Overhauser dynamic nuclear polarization (ODNP) stands out as an effective solution for continuous signal enhancement.
Kai Buckenmaier, Friedemann Bullinger, Georgiy Alekseevich Solomakha, Marcel Schneider, Jörn Engelmann, Philipp Pohlmann, Pavel Povolni, Laura Kuebler, André Ferreira Martins, Klaus Scheffler   +9 more
wiley   +1 more source

Evaluation of Interpolation Effects on Upsampling and Accuracy of Cost Functions-Based Optimized Automatic Image Registration

International Journal of Biomedical Imaging, 2013
Interpolation has become a default operation in image processing and medical imaging and is one of the important factors in the success of an intensity-based registration method. Interpolation is needed if the fractional unit of motion is not matched and
Amir Pasha Mahmoudzadeh, Nasser H. Kashou   +1 more
doaj   +1 more source

Curcumin Alleviates the Osteogenesis Inhibition and the Aging Process in BMSCs Induced by Iron Overload Through Activating the NRF2/GPX4 Pathway

Phytotherapy Research, EarlyView.
Under iron overload conditions, curcumin inhibits cellular senescence and promotes osteogenic differentiation by activating the NRF2/GPX4 signaling pathway in bone marrow mesenchymal stem cells (BMSCs), thereby preventing the onset of osteoporosis. ABSTRACT Dysregulated proliferation and differentiation of bone marrow mesenchymal stem cells (BMSCs ...
Jingmin Che, Qing Feng, Zhixia Zhao, Jingying Sun, Weihao Ren, Yangmeng Feng, Cuixiang Xu, Xu‐Hui Li   +7 more
wiley   +1 more source

A Sinc Rule for the Hankel Transform [PDF]

This paper deals with the computation of the Hankel transform by means of the sinc rule applied after a special exponential transformation. An error analysis, particularly suitable for meromorphic functions, together with the parameter selection strategy,
Denich, Eleonora, Novati, Paolo
core   +1 more source

Deciphering diverse cell‐death patterns to predict the prognosis and potential therapy target of hepatocellular carcinoma patients

VIEW, EarlyView.
Abstract Ninety percent of all primary liver malignancies are hepatocellular carcinomas (HCC), making liver cancer the third most common cause of cancer‐associated mortality. Different patterns of programmed cell death (PCD) are crucial for the survival of tumors, and they might serve as a prognostic marker for HCC.
Lin Ding, Qian Li, Wenjing Yang, Te Liu, Tongtong Tian, Yu Liu, Chunyan Zhang, Baishen Pan, Beili Wang, Fan Wu, Wei Guo   +10 more
wiley   +1 more source