Results 201 to 210 of about 338,989 (310)

Non-time-orthogonality and Tests of Special Relativity

, 2000
Robert D. Klauber
openalex   +2 more sources

Exploring surface‐guided systems for intelligent breathing‐adapted four‐dimensional computed tomography: A comparison to infrared‐based reflective marker systems

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the technical feasibility of adapting a surface monitoring system, designed for conventional four‐dimensional computed tomography (4DCT), to an intelligent, breathing‐adapted 4DCT and examines its potential to expand the currently limited range of supported surrogate systems.
Niklas Lackner, Andre Karius, Rainer Fietkau, Christoph Bert, Juliane Szkitsak   +4 more
wiley   +1 more source

Local versus Global Time in Early Relativity Theory. [PDF]

Entropy (Basel)
Dieks D.
europepmc   +1 more source

Quantization of events in the event-universe and the emergence of quantum mechanics. [PDF]

Sci Rep, 2023
Shor O, Benninger F, Khrennikov A.
europepmc   +1 more source

A Nonstandard Derivation for the Special Theory of Relativity

, 2000
Robert A. Herrmann
openalex   +2 more sources

Assessing the rigidity of thermoplastic masks for head immobilization effectiveness in stereotactic radiosurgery

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study compared three Brainlab thermoplastic masks—Cranial 4pi basic, stereotactic (Close Mask V2), and open‐face—to see how well they limited head movement during Stereotactic Radiosurgery (SRS). Using a head phantom, we tested rotational movements (pitch, yaw, and roll) and measured displacements with the ExacTrac system.
Iris Pasion Apale, Adam Agnew, Daniel Foley   +2 more
wiley   +1 more source

Status of the ΛCDM theory: supporting evidence and anomalies. [PDF]

Philos Trans A Math Phys Eng Sci
Peebles PJE.
europepmc   +1 more source

A New “Rod” Approach to the Special Theory of Relativity

, 2000
Alladi Ramakrishnan
openalex   +1 more source

Facilitating 1.5T MR‐Linac adoption: Workflow strategies and practical tips

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background MR‐guided radiotherapy (MRgRT) offers new opportunities but also introduces workflow complexities requiring dedicated optimization. Implementing magnetic resonance linear accelerator (MR‐Linac) technology comes with challenges such as prolonged treatment times and workflow integration issues.
Madeline Michel, Zelda Paquier, Christelle Bouchart, Akos Gulyban, Nicolas Jullian, Dirk Van Gestel, Sara Poeta, Nick Reynaert, Philippe Martinive, Robbe Van Den Begin   +9 more
wiley   +1 more source

Exploring the Twin Paradox: From Einstein's Theory to NASA's Twin Astronauts. [PDF]

J Biomed Phys Eng
Mortazavi SMJ, Rafiepour P, Mortazavi SA, Sihver L.   +3 more
europepmc   +1 more source