Results 31 to 40 of about 16,568 (299)

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

Nuclear 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, Pazirandeh Ali, Jahanfarnia Gholamreza   +2 more
doaj   +1 more source

Regulation of Nodal signaling propagation by receptor interactions and positive feedback

eLife, 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, Anna C Kögler, David Mörsdorf, Daniel Čapek, Gary H Soh, Katherine W Rogers, Hernán Morales-Navarrete, María Almuedo-Castillo, Patrick Müller   +8 more
doaj   +1 more source

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

The 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, Hana Hamdy Nassef, Ahmed Mohamed Ibrahim, Nivine Abdel Moneim Chalabi, Asmaa Magdy Mohamed   +4 more
doaj   +1 more source

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

Advances 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, Vérane Achard, MD, PhD, Nikolaos Koutsouvelis, MS, Maud Jaccard, MS, PhD, Frederik Vanhoutte, MS, PhD, Giovanna Dipasquale, MS, Piet Ost, MD, PhD, Thomas Zilli, MD   +7 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]

Терапевтический 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, G. A. Yatsyk, N. S. Lutsik, S. K. Kravchenko, A. B. Sudarikov, I. V. Krasil‘nikova, E. G. Gemdzhian, A. M. Kovrigina   +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]

مجله 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, Hossein Khalafi, Mehdi Zangian   +2 more
doaj  

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

International 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, Hagar Zidan, Enas Korayem, Eman Tawfeek, Sameh Abokoura   +4 more
doaj   +1 more source

Clinical Evaluation of CA 15.3 in the Post-operative Follow-up of Breast Cancer Patients

The International Journal of Biological Markers, 1990
In 265 patients operated for breast carcinoma the monoclonal antibody serum test CA 15.3 was predictive of metastatic diffusion of the disease. Its level increased in cases of distant metastasis with no significant difference between multiple and single ...
M. Scaramuzzi, C. Amorotti, M. De Palma, A.M. Falchi, E. Baldini, D. De Maria, P. Casolo   +6 more
doaj   +1 more source

Single-molecule tracking of Nodal and Lefty in live zebrafish embryos supports hindered diffusion model

, 2022
The hindered diffusion model postulates that the movement of a signaling molecule through an embryo is affected by tissue geometry and binding-mediated hindrance, but these effects have not been directly demonstrated in vivo.
Gebhardt, J., Capek, Daniel, Müller, Patrick, Landge, Amit, Müller, P., Kuhn, Timo, Mörsdorf, David, Coßmann, Jonas, Gebhardt, J. Christof M., Mörsdorf, D., Gerstenecker, Johanna, Gerstenäcker, J., Kuhn, T., Landge, A., Landge, Amit N., Coßmann, J., Čapek, D.   +16 more
core   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source