Results 81 to 90 of about 2,575,319 (401)

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki   +9 more
wiley   +1 more source

Semi‐automated hippocampal avoidance whole‐brain radiotherapy planning

open access: yesJournal 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   +9 more
wiley   +1 more source

The Morse lens [PDF]

open access: yesarXiv, 2020
In this letter, we find that Morse potential (proposed about 90 years ago) could be connected to Coulomb potential (or Newton potential) and harmonic potential (or Hooke potential) by conformal mappings. We thereby design a new conformal lens from Morse potential, Eaton lens and Luneburg lens and propose a series of generalized Eaton/Luneburg lenses ...
arxiv  

Exposure to unattainable luxury: effects on materialistic goal pursuit [PDF]

open access: yes, 2012
This paper investigates the influence of exposure to (unattainable) luxury on consumers’ materialistic and extrinsic goal pursuit. We show that exposure to luxury may produce very different effects depending on whether a person feels that (s)he is able ...
Lens, Inge   +2 more
core   +1 more source

Using an identity lens : constructive working with children in the criminal justice system [PDF]

open access: yes, 2020
Research has shown that identity, and how you feel about yourself, can be key to moving forward with life and away from crime. Working with the University of Salford, Youth Offending Teams and supported by the Barrow Cadbury Trust, this resource has been
Drummond, C   +4 more
core   +1 more source

On the Interface Between LENS® Deposited Stainless Steel 304L Repair Geometry and Cast or Machined Components [PDF]

open access: yes, 2004
Laser Engineered Net Shaping™ (LENS®) is being evaluated for use as a metal component repair/modification process. A component of the evaluation is to better understand the characteristics of the interface between LENS deposited material and the ...
Gill, D.D.   +4 more
core   +2 more sources

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar   +8 more
wiley   +1 more source

Risk Behaviors for Contact Lens–Related Eye Infections Among Adults and Adolescents — United States, 2016

open access: yesMMWR. Morbidity and mortality weekly report, 2017
Contact lens-related eye infections, which can lead to serious outcomes, including blindness, are associated with several risk factors, including sleeping in lenses, exposing lenses to water, not adhering to replacement schedules, and reusing ...
J. Cope   +5 more
semanticscholar   +1 more source

Minimal triangulations for an infinite family of lens spaces [PDF]

open access: yes, 2008
The notion of a layered triangulation of a lens space was defined by Jaco and Rubinstein in earlier work, and, unless the lens space is L(3,1), a layered triangulation with the minimal number of tetrahedra was shown to be unique and termed its "minimal layered triangulation." This paper proves that for each integer n>1, the minimal layered ...
arxiv   +1 more source

The Optimal Gravitational Lens Telescope [PDF]

open access: yes, 2010
Given an observed gravitational lens mirage produced by a foreground deflector (cf. galaxy, quasar, cluster,...), it is possible via numerical lens inversion to retrieve the real source image, taking full advantage of the magnifying power of the cosmic ...
Bolton   +15 more
core   +4 more sources

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