Results 231 to 240 of about 4,361,784 (275)

Predictors of increased length of stay and cost in readmissions for spinal surgical site infections. [PDF]

N Am Spine Soc J
Alexeev P, Zhang A, Giammanco M, Jimenez J, Szpakowski M, Snowden R.   +5 more
europepmc   +1 more source

Development of a GPU-based dose calculation engine for MRI-guided proton therapy. [PDF]

Med Phys
Gu Y, Wang Y, Liu M, Gong H, Yuan X, Lu HM, Yang Y.   +6 more
europepmc   +1 more source

Frequency-specific cortical subnetworks support fast human swallowing. [PDF]

Commun Biol
Muhle P, von Itter J, Jung A, Labeit B, Cheng I, Claus I, Wollbrink A, Gross J, Dziewas R, Suntrup-Krueger S.   +9 more
europepmc   +1 more source

Head-to-head evaluation of host blood biomarkers for point-of-care TB triage: diagnostic accuracy study. [PDF]

J Clin Microbiol
Komakech K, Sserwadda I, Sserubiri J, Joloba M, Theron G, Cobelens F, Ssengooba W.   +6 more
europepmc   +1 more source

Challenges in calculation of the gamma index in radiotherapy – Towards good practice

Physica Medica, 2017
The gamma index (γ) is one of the most commonly used metrics for the verification of complex modulated radiotherapy. The mathematical definition of the γ is computationally expensive and various techniques have been reported to speed up the calculation either by mathematically refining the γ or employing various computational techniques.
Andrew Nisbet, Mohammad Hussein, Catharine H Clark   +2 more
exaly   +6 more sources

An open-source software for calculating 1D gamma index in radiation therapy

Journal of King Saud University - Science, 2023
Cette étude a été développée pour créer un logiciel informatique permettant d'effectuer la comparaison de l'indice gamma entre la mesure et la simulation de Monte Carlo (MC) pour la dose en pourcentage de profondeur (PDD) et le profil de rapport décentré du faisceau (OCR).
Duong Thanh Tai, David Bradley, Hiba Omer   +2 more
exaly   +3 more sources

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Tate $$\gamma $$-factor, Weil index, and the metaplectic $$\widetilde{\gamma }$$ -factor

The Ramanujan Journal, 2021
The author mainly demonstrated the following equality in this well-written short paper: \[\widetilde{\gamma}(1-s,\chi^{-1}, \psi)=\gamma(\psi) \chi(-1) \frac{\gamma(s+1/2, \chi, \psi)}{\gamma(2s,\chi^2,\psi_2)}.\] In this equality, \(\gamma(\psi)\) is the Weil index, which appears in the study of Weil representations of the metaplectic group ...
openaire   +2 more sources

On the Determination of the Resolution Index of a Gamma Camera

Nuklearmedizin, 1973
L’étude tâche d’interpréter les différences des indices de résolution de gamma caméra obtenues expérimentalement et calculées. Les erreurs de mesurage et les conditions de validité des formules utilisées dans les calcules sont discutées. On a pu obtenir un agréement des deux méthodes et une confirmation théorique.
J, Tolwiński, B A, Gwiazdowska, H, Mackiewicz   +2 more
openaire   +2 more sources

Gamma Power as an Index of Sustained Attention in Simulated Vigilance Tasks

Topics in Cognitive Science, 2023
AbstractPerformance on the psychomotor vigilance test (PVT; Dinges & Powell, 1985)—a common index of sustained attention—is affected by the opposing forces of fatigue and sustained effort, where reaction times and error rates typically increase across trials and are sometimes offset by additional efforts deployed toward the end of the task (i.e ...
Taylor M. Curley, Lorraine Borghetti, Megan B. Morris   +2 more
openaire   +3 more sources

A numerical index of gamma-camera uniformity

The British Journal of Radiology, 1976
The image of an evenly distributed source of radioactivity is often used as a means of checking that the response of a gamma-camera is uniform over a large fraction of its crystal area. This image is generally termed a flood field image. If a computer link is available, images may be collected as digital arrays.
N. J. Cox, B. L. Diffey
openaire   +1 more source