Results 161 to 170 of about 3,127,622 (352)

X-ray sources as tracers of the large-scale structure in the universe [PDF]

, 2001
X. Barcons, F. J. Carrera, M. T. Ceballos, S. Mateos   +3 more
openalex   +1 more source

Research in extragalactic astrophysics [PDF]

The spatial distribution of clusters of galaxies and the large scale structure of the universe is investigated. Correlations in the spatial cluster distribution are much stronger than those seen for galaxies, and over scales much larger than previously ...
Bahcall, N.
core   +1 more source

Semi‐automated hippocampal avoidance whole‐brain radiotherapy planning

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Hippocampal avoidance whole‐brain radiotherapy (HA‐WBRT) is designed to spare cognitive function by reducing radiation dose to the hippocampus during the treatment of brain metastases. Current manual planning methods can be time‐consuming and may vary in quality, necessitating the development of automated approaches to streamline ...
Dong Joo Rhee, Subha Perni, Kelly J. Perrin, Kevin E. Casey, Alexandra O. Leone, Callistus M. Nguyen, Laurence E. Court, He Wang, Xin Wang, Eun Young Han   +9 more
wiley   +1 more source

Open‐source deep‐learning models for segmentation of normal structures for prostatic and gynecological high‐dose‐rate brachytherapy: Comparison of architectures

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The use of deep learning‐based auto‐contouring algorithms in various treatment planning services is increasingly common. There is a notable deficit of commercially or publicly available models trained on large or diverse datasets containing high‐dose‐rate (HDR) brachytherapy treatment scans, leading to poor performance on images ...
Andrew J. Krupien, Yasin Abdulkadir, Dishane C. Luximon, John Charters, Huiming Dong, Jonathan Pham, Dylan O'Connell, Jack Neylon, James M. Lamb   +8 more
wiley   +1 more source

Risk analysis of the Unity 1.5T MR‐Linac adapt‐to‐shape workflow

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and Purpose The adapt‐to‐shape (ATS) workflow on the Unity MR‐Linac (Elekta AB, Stockholm, Sweden) allows for full replanning including recontouring and reoptimization5. Additional complexity to this workflow is added when the adaptation involves the use of MIM Maestro (MIM Software, Cleveland, OH) software in conjunction with ...
Jiayi Liang, Eric Aliotta, Neelam Tyagi, Paola Godoy Scripes, Nicolas Côté, Ergys Subashi, Qijie Huang, Lian Sun, Ching‐Yun Chan, Angela Ng, Theresa Wunner, Victoria Brennan, Kaveh Zakeri, James Mechalakos   +13 more
wiley   +1 more source

TANGENTIAL LARGE SCALE STRUCTURE EVIDENCE FOR A LOW DENSITY UNIVERSE [PDF]

, 2002
Boudewijn F. Roukema, G. A. Mamon
openalex   +1 more source

Professionalism skills education in medical physics residency: Current state and perceived importance

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The purpose of this study was to collect data on current practices for teaching and assessing professionalism in CAMPEP‐accredited residency programs. Methods A survey of 21 questions was sent to 160 program directors (PDs) of CAMPEP‐accredited residency programs.
Anna Rodrigues, Leah Schubert, Laura Padilla, Kristi Hendrickson, Hania Al‐Hallaq, Irina Vergalasova   +5 more
wiley   +1 more source

Constraining Neutrino Cosmologies with Nonlinear Reconstruction

The Astrophysical Journal
Nonlinear gravitational evolution induces strong nonlinearities in the observed cosmological density fields, leading to positive off-diagonal correlations in the power spectrum covariance. This has caused the information saturation in the power spectrum,
Shi-Hui Zang, Hong-Ming Zhu
doaj   +1 more source

Large-scale structure formation and cosmic microwave anisotropy in a cold plus hot dark matter universe

, 1989
R. K. Schaefer, Qaisar Shafi, F. W. Stecker   +2 more
openalex   +1 more source

Rhombic Cell Analysis – A New Way of Probing the Large-Scale Structure of the Universe. I. General Considerations [PDF]

, 2003
T. Kiang
openalex   +1 more source