Results 91 to 100 of about 425,585 (327)

Incircular nets and confocal conics

, 2017
We consider congruences of straight lines in a plane with the combinatorics of the square grid, with all elementary quadrilaterals possessing an incircle. It is shown that all the vertices of such nets (we call them incircular or IC-nets) lie on confocal
Akopyan, Arseniy, Bobenko, Alexander I.
core   +1 more source

Geometric and dosimetric evaluation of a commercial AI auto‐contouring tool on multiple anatomical sites in CT scans

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Current radiotherapy practices rely on manual contouring of CT scans, which is time‐consuming, prone to variability, and requires highly trained experts. There is a need for more efficient and consistent contouring methods. This study evaluated the performance of the Varian Ethos AI auto‐contouring tool to assess its potential integration into
Robert N. Finnegan, Alexandra Quinn, Patrick Horsley, Joseph Chan, Maegan Stewart, Regina Bromley, Jeremy Booth   +6 more
wiley   +1 more source

GALAXI: Gallium anode low-angle x-ray instrument

Journal of large-scale research facilities JLSRF, 2016
The high brilliance laboratory small angle X-ray scattering instrument GALAXI, which is operated by JCNS, Forschungszentrum Jülich, permits the investigation of chemical correlations in bulk materials or of structures deposited on a surface at nanometre ...
Emmanuel Kentzinger, Margarita Krutyeva, Ulrich Rücker   +2 more
doaj   +1 more source

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

Shielding resources for four common radiopharmaceuticals utilized for imaging and therapy: Tc‐99m, F‐18, I‐131, and Lu‐177

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano, Richard Wendt, James Botti, Nathan Busse, David Hintenlang, Stephanie Leon, Kevin Little, Melissa Martin, Richard Massoth, Kenneth Matthews, Rameshwar Prasad, Sharon White, Jessica Clements   +12 more
wiley   +1 more source

High‐Fat and Low‐Carbohydrate Dietary Environments Are Linked to Reduced Idiopathic Epilepsy Incidence and Prevalence

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Dietary manipulations like ketogenic diets are established interventions for recalcitrant epilepsy. However, it remains unknown whether specific macronutrient exposure through dietary environments could possibly extend to primary preventive qualities, associated with changes in epilepsy disease burden (prevalence and incidence).
Duan Ni, Alistair Senior, David Raubenheimer, Stephen J. Simpson, Ralph Nanan   +4 more
wiley   +1 more source

Aerodynamic analysis of several high throat Mach number inlets for the quiet clean short-haul experimental engine [PDF]

The results of an analytical study to investigate internal and external surface Mach numbers on several inlet geometries for possible application to the nacelle of the Quiet Clean Short-Haul Experimental Engine (QCSEE) are presented.
Albers, J. A., Hirn, J. J., Stockman, N. O.   +2 more
core   +1 more source

Pharmacokinetics, Efficacy, and Safety of Upadacitinib in Pediatric Patients With Polyarticular‐Course Juvenile Idiopathic Arthritis: An Interim Analysis of an Open‐Label, Phase 1 Trial

Arthritis Care &Research, EarlyView.
Objective This work aimed to evaluate the pharmacokinetics, efficacy, and safety of upadacitinib, an oral selective JAK inhibitor, in pediatric patients with polyarticular‐course juvenile idiopathic arthritis (pcJIA). Methods In an open‐label, phase 1 study (SELECT‐YOUTH), enrolled patients, aged 2 to <18 years with pcJIA, received body weight–based ...
Hermine I. Brunner, Anna Shmagel, Gerd Horneff, Ivan Foeldvari, Jordi Antón, Athimalaipet V. Ramanan, Yuli Qian, Kristina Unnebrink, Shuai Hao, Heidi S. Camp, Nasser Khan, Wei Liu, Mohamed‐Eslam F. Mohamed   +12 more
wiley   +1 more source

Arterial hypertension in patients with repaired coarctation and hypoplastic aortic arch

Патология кровообращения и кардиохирургия, 2015
At present, surgical techniques for treatment of CoA are well established and the mortality is one of the lowest amongst all CHD patients. Nevertheless, the incidence of arterial hypertension (AH), cerebrovascular disease and heart disease is still high ...
И. А. Сойнов, Ю. С. Синельников, А. В. Горбатых, Н. Р. Ничай, С. М. Иванцов, И. А. Корнилов, М. С. Кшановская, Ю. Н. Горбатых   +7 more
doaj   +1 more source

Low speed wind tunnel investigation of the aerodynamic and acoustic performance of several sonic inlet takeoff and approach geometries [PDF]

A series of tests was conducted to determine the aerodynamic and acoustic performance of several sonic inlet takeoff and approach geometries. The effects of inlet lip shape and diffuser length were also investigated.
Abbott, J. M., Golladay, R. L.
core   +1 more source