Results 161 to 170 of about 3,230 (268)

Reinvestigating the Nightside Ionosphere of Mars With 8 Years of Mars Express and MAVEN Data

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Tailward ion escape in the nightside magnetotail is one of the dominant paths of ion escape from Mars. The Martian nightside ionosphere can serve as a major reservoir for this escape channel, but its global distributions and dependence on the upstream solar wind have not been fully investigated due to observational limitations.
N. Takeuchi, Y. Harada, B. Sánchez‐Cano   +2 more
wiley   +1 more source

Editorial: Radiolabeled Peptides in Cancer Imaging and Therapy-Emerging Isotopes. [PDF]

Pharmaceuticals (Basel)
Malik N.
europepmc   +1 more source

Thireenth international conference on cyclotrons and their applications. Conference summary

, 1992
This report contains short descriptions of papers presented at the Thirteenth International Conference on Cyclotrons and Their ...
Clark, D. J.
core  

On the Role of Electron Precipitation in Excess Radiation Doses Measured at Aviation Altitudes

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Radiation from space in the form of galactic cosmic rays (GCRs) generates a persistent background of ionizing radiation in Earth's atmosphere. The dose rate of ionizing radiation due to GCRs increases from sea level to aviation altitudes.
Julia Luna Claxton, Robert Marshall
wiley   +1 more source

Pilot Study on Risk Perception in Practices with Medical Cyclotrons in Radiopharmaceutical Centers in Latin American Countries: Diagnosis and Corrective Measures. [PDF]

Int J Environ Res Public Health
Montero-Díaz F, Torres-Valle A, Jauregui-Haza U.   +2 more
europepmc   +1 more source

Microbial Controls on Dissolved Organic Nitrogen Cycling During Long‐Term Degradation Experiments

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Dissolved organic nitrogen (DON) is critical for marine microbial growth by providing carbon and nitrogen. Although DON is rapidly cycled, some compounds within this pool can persist for long‐periods of time. To better understand how DON is cycled by marine microorganisms, we conducted 548‐day incubations using surface‐derived dissolved ...
Richard LaBrie, Roxane Maranger, Luc Tremblay, Jennifer Cherrier, Jean‐Eric Tremblay, Nagissa Mahmoudi   +5 more
wiley   +1 more source

Radiobiological and Clinical Advantages of Proton Therapy in Modern Cancer Treatment. [PDF]

Cancers (Basel)
Kalospyros SA, Gkikoudi A, Koutsostathis A, Adamopoulou A, Vasilopoulos SN, Rangos V, Stylianou-Markidou E, Pantalos I, Koumenis C, Georgakilas AG.   +9 more
europepmc   +1 more source

First Detection of the Two‐Dimensional Vertical Propagation of Traveling Ionospheric Disturbances Associated With Atmospheric Gravity Waves in the Martian Ionosphere

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract We report the detection of a traveling ionospheric disturbance (TID) captured by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) Active Ionospheric Sounding (AIS) instrument aboard the Mars Express spacecraft at 150–250 km altitude.
Rong Tian, Beatriz Sánchez‐Cano, Chunhua Jiang, Mark Lester, Dikshita Meggi, Simon Joyce, Christopher M. Fowler, Andrea Cicchetti, Mats Holmstrom, David Andrews, Pedro Machado   +10 more
wiley   +1 more source

Availability, accessibility, and economic feasibility of radionuclide therapies in Africa: a systematic review and quantitative infrastructure analysis. [PDF]

Front Nucl Med
Ibrahim EA.
europepmc   +1 more source

Radioisotope dating with a cyclotron.

Science (New York, N.Y.), 1976
By considering radioisotope dating as a problem in trace element detection, and by using the cyclotron as a high-energy mass spectrometer for this purpose, we have shown that one can greatly increase the maximum age that can be determined while simultaneously reducing the size of the sample required.
openaire   +2 more sources