Results 31 to 40 of about 67,991 (292)

The Role of Diffusion Weighted Imaging in suspected cases of ovarian cancer

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2020
Background Ovarian cancer is a common gynecological malignancy and often diagnosed late with extensive peritoneal and nodal metastasis. Diffusion-weighted imaging (DWI) provides valuable information about the structural properties of the tissue and has ...
Rahma Farghaly Ali   +4 more
doaj   +1 more source

Regulation of Nodal signaling propagation by receptor interactions and positive feedback

open access: yeseLife, 2022
During vertebrate embryogenesis, the germ layers are patterned by secreted Nodal signals. In the classical model, Nodals elicit signaling by binding to a complex comprising Type I/II Activin receptors (Acvr) and the co-receptor Tdgf1.
Hannes Preiß   +8 more
doaj   +1 more source

Three-dimensional time-dependent neutron diffusion simulation using average current nodal expansion method [PDF]

open access: yesNuclear Technology and Radiation Protection, 2020
In this work, the average current nodal expansion method was developed for the time-dependent neutronic simulation of transients in a nuclear reactor's core.
Valavi Kambiz   +2 more
doaj   +1 more source

Superconvergence of a discontinuous Galerkin method for fractional diffusion and wave equations [PDF]

open access: yes, 2012
We consider an initial-boundary value problem for $\partial_tu-\partial_t^{-\alpha}\nabla^2u=f(t)$, that is, for a fractional diffusion ...
Eriksson K.   +2 more
core   +1 more source

Elective Nodal Irradiation for Oligorecurrent Nodal Prostate Cancer: Interobserver Variability in the PEACE V-STORM Randomized Phase 3 Trial

open access: yesAdvances in Radiation Oncology, 2023
Purpose: Consistency in delineation of pelvic lymph node regions for prostate cancer elective nodal radiation therapy is still challenging despite current guidelines.
Orane Lorton, MS Dipl Ing   +7 more
doaj   +1 more source

Extracellular interactions and ligand degradation shape the nodal morphogen gradient

open access: yeseLife, 2016
The correct distribution and activity of secreted signaling proteins called morphogens is required for many developmental processes. Nodal morphogens play critical roles in embryonic axis formation in many organisms. Models proposed to generate the Nodal
Yin Wang   +3 more
doaj   +1 more source

Informativeness of whole-body diffusion-weighted magnetic resonance imaging and positron emission tomography with computed tomography in follicular lymphoma [PDF]

open access: yesТерапевтический архив, 2020
Aim.This study conducted the possibilities of diffusion-weighted magnetic resonance imaging of the whole body diffusion WB-MRI (in comparison with positron emission tomography with computed tomography PET/CT) in assessing the volume and prevalence of ...
E. S. Nesterova   +7 more
doaj   +1 more source

Analytic solution of two-group static neutron diffusion equation using different transverse leakage approximations in 2D cartesian geometry [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2015
Nodal is a method for solving the neutron diffusion equation. It is categorized to analytic, semi-analytic and expansion nodal methods. In this research work, a software is developed in order to solve two group neutron diffusion equations in two ...
Mohammad Hosseini   +2 more
doaj  

Location matters in early stage nodal diffuse large B-cell lymphoma [PDF]

open access: yesLeukemia & Lymphoma, 2018
Diffuse large B-cell lymphoma (DLBCL) is the most common type of B-cell lymphoma in the United States [1].
Konstantinos Lontos   +7 more
openaire   +2 more sources

Whole-Body Diffusion-Weighted MRI VERSUS 18F-FDGPET/CT in Assessment of Lymphoma [PDF]

open access: yesInternational Journal of Medical Arts
Background: Lymphomas comprise 5-6% of all cancers. While positron emission tomography [PET] scans, using the [18F]- Fluorodeoxyglucose tracer [18F-FDG PET/CT] remain standard for staging/follow-up, radiation concerns have increased interest in whole ...
Manal Gomaa   +4 more
doaj   +1 more source

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