Results 121 to 130 of about 36,313 (321)

OCCULT CAUSES OF DISEASE. [PDF]

JAMA: The Journal of the American Medical Association, 1884
[Read in the Section of Practice of Medicine and Materia Medica of the American Medical Association, May, 1884.] The world moves in Cycles—the earth on her own axis, around the sun, her path about the sun recording the mighty cycles of the glacial eras. Periodicity marks all nature.
openaire   +3 more sources

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

Global Vertical Distribution of Water Vapor on Mars: Results From 3.5 Years of ExoMars-TGO/NOMAD Science Operations. [PDF]

J Geophys Res Planets, 2022
Aoki S, Vandaele AC, Daerden F, Villanueva GL, Liuzzi G, Clancy RT, Lopez-Valverde MA, Brines A, Thomas IR, Trompet L, Erwin JT, Neary L, Robert S, Piccialli A, Holmes JA, Patel MR, Yoshida N, Whiteway J, Smith MD, Ristic B, Bellucci G, Lopez-Moreno JJ, Fedorova AA.   +22 more
europepmc   +1 more source

Occultation of 64 Aquarii by Jupiter, observed at the Melbourne Observatory, September 14, 1879 [PDF]

, 1880
R. L. J. Ellery
openalex   +1 more source

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

Journal 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, Kudret Akçay, Esra Serin, Dursun Eşitmez, Mehmet Sıddık Cebe, Navid Kheradmand, Ömer Yazıcı, Dilek Ünal, Evrim Metcalfe   +8 more
wiley   +1 more source

Solar occultation with SCIAMACHY: algorithm description and first validation [PDF]

Atmospheric Chemistry and Physics, 2005
This presentation concentrates on solar occultation measurements with the spaceborne spectrometer SCIAMACHY in the UV-Vis wavelength range. Solar occultation measurements provide unique information about the vertical distribution of atmospheric ...
J. Meyer, A. Bracher, A. Rozanov, A. C. Schlesier, H. Bovensmann, J. P. Burrows   +5 more
doaj  

Observation based climatology Martian atmospheric waves perturbation Datasets. [PDF]

Sci Data, 2023
Zhang J, Ji Q, Sheng Z, He M, He Y, Zuo X, He Z, Qin Z, Wu G.   +8 more
europepmc   +1 more source

Design and validation of a novel dosimetry phantom for motion management audits

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton, Sabeena Beveridge, Nicholas Hardcastle, Silvio Malfitana, Janaka Madamperuma, Rick Franich   +5 more
wiley   +1 more source

Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith, Isabelle Gagne, Karl Otto, Carter Kolbeck, Joshua Giambattista, Abraham Alexander, Sonja Murchison, Andrew Pritchard, Erika Chin   +8 more
wiley   +1 more source

Log file‐based quality assurance method for respiratory gating system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background As medical linear accelerator technology advances, enabling higher dose rate deliveries, hypofractionation regimens has increased. This necessitates respiratory gating systems that synchronize radiation delivery with tumor position, requiring simple rigorous quality assurance (QA) to ensure treatment accuracy and patient safety ...
Wonjoong Cheon, Young Kyu Lee, Yunji Seol, Chan‐beom Park, Hong Qi Tan, Kyu Hye Choi, Young‐nam Kang, Byung Ock Choi   +7 more
wiley   +1 more source