Results 91 to 100 of about 14,169 (221)

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Patient-specific internal radionuclide dosimetry

, 2010
The development of patient-specific treatment planning systems is of outmost importance in the development of radionuclide dosimetry, taking into account that quantitative three-dimensional nuclear medical imaging can be used in this regard.
Loudos, G., Georgoulias, P., Theodorou, K., Kappas, C., Tsougos, I.   +4 more
core   +1 more source

Characterization and parameters for the effectiveness of a UV‐C device for infection control in dental clinics

Photochemistry and Photobiology, EarlyView.
Purpose‐built UV‐C device achieves over 90% disinfection of high‐touch dental clinic surfaces. Abstract Healthcare‐associated infections (HAIs) remain a significant concern in dental settings, especially in light of increasing antimicrobial resistance.
Kátia Cristiane Hall, Everton Granemann Souza, Chiara das Dores do Nascimento, Marcel Luiz Basso, Mário Lúcio Moreira, Carla Lucía David Pena, Wellington Luiz Oliveira da Rosa, Rafael Guerra Lund, Evandro Piva   +8 more
wiley   +1 more source

Methods and Models of the Hanford Internal Dosimetry Program, PNNL-MA-860 [PDF]

, 2003
This manual describes the technical basis for the design of the routine radiobioassay monitoring program and assessments of internal dose. Its purpose is to provide a historical record of the methods, models, and assumptions used for internal dosimetry ...
Bihl, Donald E., Maclellan, Jay A., Carbaugh, Eugene H.   +2 more
core   +1 more source

Cis‐urocanic acid formation following far‐UVC exposure and associated signaling responses in keratinocytes

Photochemistry and Photobiology, EarlyView.
Far‐UVC (200–235 nm) has emerged as a safe and effective indoor disinfection tool, but effects on skin immunomodulation remain unclear. This study demonstrates that 222 nm far‐UVC converts trans‐urocanic acid (UCA) to its biologically active cis isomer at levels comparable with solar radiation. In keratinocytes, far‐UVC alone caused modest increases in
Lizzie Thomas, Gareth Hazell, Katarzyna Baczynska, Jinkang Zhang, Paul O'Mahoney   +4 more
wiley   +1 more source

Preclinical in vivo dosimetry of healthy tissues in radiopharmaceutical therapy: implementation of a physiologically realistic mouse eye model in GATE

EJNMMI Research
Background Targeted radionuclide therapy is a rapidly growing treatment modality that has shown great promise in managing metastatic cancers. However, the affinity of certain radiopharmaceuticals for off-target healthy tissues necessitates accurate ...
Elodie Jouberton, Nicolas Sas, Tommy Billoux, Philippe Auzeloux, Sébastien Schmitt, Leslie Mazuel, Jean-Michel Chezal, Elisabeth Miot-Noirault, Isabelle Ranchon-Cole, Florent Cachin   +9 more
doaj   +1 more source

Comparative analysis of inductively coupled plasma mass spectrometry and alpha spectrometry methods to measure plutonium activity in biosubstrates

Радиационная гигиена
Currently, the most common methods to measure the activity of transuranium elements in biological samples are alpha radiometry and alpha spectrometry. Of these, alpha spectrometry is the most sensitive and selective method.
V. R. Batalov, M. V. Ishunina, A. V. Efimov, A. B. Sokolova   +3 more
doaj   +1 more source

Ratios of internal doses deposited in different organs to the whole body when such organ is adopted as source of 18F-fluorodeoxyglucose, a Monte Carlo Geant4 study on a male medical internal radiation dose phantom

World Journal of Nuclear Medicine, 2020
In the present study, the last stable version of Monte Carlo Geant4 code known as Geant4.10.3 has been used for measuring internal dose ratios to the whole body for about 40 organs.
Jaafar Bakkali, A Doudouh, A Biyi, K Bouyakhlef, O Sahel, Y Benameur   +5 more
doaj   +1 more source

Chemical Exposures, DNA Methylation and Whole Blood DNA Damage in Pet Golden Retrievers

Veterinary and Comparative Oncology, EarlyView.
ABSTRACT Canine multicentric lymphoma (CL) is a common and typically fatal cancer among dogs. Although certain breeds have a higher incidence of CL, its environmental risk factors remain uncertain. Exposures to herbicides and volatile organic compounds (VOCs) associate with non‐Hodgkin lymphoma in people.
Ashleigh N. Tindle, Mark E. Berres, Lauren Baker, Zhuonan Wu, Brenna Swafford, Julia Labadie, Lauren A. Trepanier   +6 more
wiley   +1 more source

Retrospective Analysis of Survival and Adverse Effects Associated With Stereotactic Body Radiation Therapy in 12 Dogs With Hepatocellular Carcinoma

Veterinary and Comparative Oncology, EarlyView.
ABSTRACT This retrospective analysis evaluated 12 dogs with hepatocellular carcinoma (HCC) who received stereotactic body radiation therapy (SBRT). Dogs received between 6 and 25 Grey (Gy) per fraction for 1–5 fractions for a total dose of 13–30 Gy. Eleven patients (92%) experienced acute adverse effects (AE), with the majority being VRTOG grade 2–3 ...
Victoria Lee Newberry, Mary‐Keara Boss, Del Leary, Tiffany W. Martin   +3 more
wiley   +1 more source