Results 71 to 80 of about 46,432 (331)

Non‐Subtractive Arterial Spin Labeling‐Based (NSASL) Renal Magnetic Resonance Angiography (MRA): Development and Clinical Feasibility Evaluation

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Non‐contrast renal MR angiography (MRA) is valuable for patients who cannot receive contrast agents or when avoiding radiation is desired. However, the conventional inflow inversion recovery (IFIR) method is limited by incomplete background suppression, venous contamination, and motion sensitivity.
Yulin Wang, Ye Yuan, Kun Yan, Jichang Zhang, Jie Zeng, Shengyang Niu, Shiying Ke, Chendie Yao, Bin Chen, Qi Dai, Liping Guo, Jianjun Zheng, Thomas Meersmann, Chengbo Wang   +13 more
wiley   +1 more source

DOSIS & DOSIS 3D: radiation measurements with the DOSTEL instruments onboard the Columbus Laboratory of the ISS in the years 2009–2016

Journal of Space Weather and Space Climate, 2017
The natural radiation environment in Low Earth Orbit (LEO) differs significantly in composition and energy from that found on Earth. The space radiation field consists of high energetic protons and heavier ions from Galactic Cosmic Radiation (GCR), as ...
Berger Thomas, Burmeister Sönke, Matthiä Daniel, Przybyla Bartos, Reitz Günther, Bilski Pawel, Hajek Michael, Sihver Lembit, Szabo Julianna, Ambrozova Iva, Vanhavere Filip, Gaza Ramona, Semones Edward, Yukihara Eduardo G., Benton Eric R., Uchihori Yukio, Kodaira Satoshi, Kitamura Hisashi, Boehme Matthias   +18 more
doaj   +1 more source

Intrafraction motion and impact of margin reduction for MR‐Linac online adaptive radiotherapy for pancreatic cancer treatments

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 17-24, March 2025.
This analysis included quantification of intrafraction motion in pancreas stereotactic ablative radiotherapy treated on the MR‐Linac, leading to the development of adjusted (PTV) margins. Intrafraction motion indicated an average target displacement of 1–3 mm, resulting in an adjusted PTV margin of 2 mm in the right–left and superior–inferior ...
Ashleigh Fasala, Madeline Carr, Yolanda Surjan, Parmoun Daghigh, Jeremy de Leon, Abbey Burns, Vikneswary Batumalai   +6 more
wiley   +1 more source

Intelligent Memory Module Overcomes Harsh Environments [PDF]

, 2008
Solar cells, integrated circuits, and sensors are essential to manned and unmanned space flight and exploration, but such systems are highly susceptible to damage from radiation.

core   +1 more source

Discovery of Diffuse Hard X-ray Emission around Jupiter with Suzaku

, 2010
We report the discovery of diffuse hard (1-5 keV) X-ray emission around Jupiter in a deep 160 ks Suzaku XIS data. The emission is distributed over ~16x8 Jovian radius and spatially associated with the radiation belts and the Io Plasma Torus.
Bagenal, Berge, Elsner, Garret, Giacconi, Koyama, Lumb, Mitsuda, Rybiki, Santos, Serlemitsos, Tatischeff, Uchiyama   +12 more
core   +1 more source

Modeling inward diffusion and slow decay of energetic electrons in the Earth\u27s outer radiation belt [PDF]

, 2015
A new 3-D diffusion code is used to investigate the inward intrusion and slow decay of energetic radiation belt electrons (\u3e0.5 MeV) observed by the Van Allen Probes during a 10 day quiet period on March 2013.
Angelopoulos, V., Baker, D. N., Blake, J. B., Claudepierre, S., Fennell, J. F., Henderson, M. G., Hospodarsky, G. B., Kletzing, C A., Kurth, W. S., Li, W., Ma, Q., Ni, B., Reeves, Geoffrey, Spence, Harlan E., Thorne, R. M.   +14 more
core   +4 more sources

Differentiating Between Simultaneous Loss Drivers in Earth’s Outer Radiation Belt: Multi Dimensional Phase Space Density Analysis [PDF]

, 2023
Frances Staples, Qianli Ma, Adam Kellerman, I. J. Rae, C. Forsyth, J. K. Sandhu, Jacob Bortnik   +6 more
openalex   +1 more source

Wildfires' Cost for Societal Welfare: Economic Evaluation of Forestry Ecosystem Services Losses in Southern Italy

Land Degradation &Development, EarlyView.
ABSTRACT Forest ecosystem services (ESs) are garnering increasing public attention as awareness grows regarding society's fundamental dependence on them for well‐being. Forest fires, one of the major disturbances of ESs, are becoming more frequent and destructive, exacerbated in part by climate change.
Emanuele Spada, Giacomo Falcone, Salvatore Praticò, Maria Carmela Benedetto, Giovanni Gulisano, Nathalie Iofrida, Anna Irene De Luca   +6 more
wiley   +1 more source

Some General Aspects of Geomagnetically Trapped Radiation [PDF]

Physical principles of radiation belts and entrapment of radiation by geomagnetic ...
Van Allen, J. A.
core   +1 more source

What happens when the geomagnetic field reverses?

, 2012
During geomagnetic field reversals the radiation belt high-energy proton populations become depleted. Their energy spectra become softer, with the trapped particles of highest energies being lost first, and eventually recovering after a field reversal ...
Akasofu, Alfvén, Alfvén, Dragt, Dragt, Dungey, Glassmeier, Griem, Horne, Jackman, Kirkby, Lemaire, Lemaire, McIlwain, McIlwain, McIlwain, McIlwain, McIlwain, Northrop, Singer, Singer, Singer, Singer, Singer, Singer, Smart, Smart, Stadelmann, Störmer, Störmer, Störmer, Svensmark, Uffen, Van Allen, Van Allen, Van Allen, Vernov, Vogt, Vogt, Vogt, Walt, Zieger, Zieger   +42 more
core   +1 more source