Results 71 to 80 of about 2,442,113 (235)

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

The Essential Role of Monte Carlo Simulations for Lung Dosimetry in Liver Radioembolization—Part B: ¹⁶⁶Ho Microspheres

Applied Sciences
This study compares dosimetric approaches for lung dosimetry in 166 radioembolization (Ho-TARE) with direct Monte Carlo (MC) simulations on a voxelized anthropomorphic phantom derived from a real patient’s CT scan, preserving the patient’s lung density ...
Edoardo d’Andrea, Andrea Politano, Bartolomeo Cassano, Nico Lanconelli, Marta Cremonesi, Vincenzo Patera, Massimiliano Pacilio   +6 more
doaj   +1 more source

Implementation of internal monitoring programs for workers occupationally exposed by 131I in nuclear medicine services in Brazil

Brazilian Journal of Radiation Sciences, 2018
In nuclear medicine services (NMS), workers routinely handle radionuclides for diagnostic and therapy. This practice represents a risk of incorporation by these radionuclides. The International Atomic Energy Agency (IAEA) recommends the implementation of
Salomão Marques de Oliveira, Ana Letícia Almeida Dantas, Bernardo Maranhão Dantas   +2 more
doaj   +1 more source

THE EURADOS WORK TOWARDS A REVIEW ON RETROSPECTIVE DOSIMETRY AFTER INCORPORATION OF RADIONUCLIDES

, 2019
Biological dosimetry methods are well established and validated for providing dose estimates following external radiation exposures. In contrast, interpreting biological dosimetry data in cases of internal exposures is still challenging. In this context,
Lopez M. A., Testa A., Giussani A.
core   +1 more source

A DPP6‐Targeted PET Tracer for Non‐Invasive Imaging of Transplanted Human Islets

Diabetes, Obesity and Metabolism, EarlyView.
ABSTRACT Introduction Dipeptidyl peptidase‐like protein 6 (DPP6) is a potential molecular imaging biomarker for pancreatic and transplanted islets of Langerhans. 4hD29 is a single‐domain antibody with nanomolar affinity for DPP6. Here, we demonstrate the generation and validation of [68Ga]Ga‐NOTA‐4hD29 for Positron Emission Tomography (PET) imaging of ...
Amina Khalil, Arturo Roca‐Rivada, Svitlana Vasylovska, Lorenzo J. I. Balestri, Irina Velikyan, Sayro Jawurek, Alexandra C. Title, Burcak Yesildag, Luke R. Odell, Joey Lau, Decio L. Eizirik, Olof Eriksson   +11 more
wiley   +1 more source

Idac-alpha An alpha dosimetry software for normal organs and tissues

, 2021
Radiopharmaceuticals have been used for the treatment of various forms of cancer since the 1940s. In recent years, the advantages of alpha emitting radionuclides have emerged as a favourable treatment option.
Mattsson, S.,, Koumarianou, E.,, Kluge, A.,, Lund University., Andersson, M.,, Meyer, T.,   +5 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

Determination of 99Mo contamination in a nuclear medicine patient submitted to a diagnostic procedure with 99mTc

Brazilian Archives of Biology and Technology, 2005
99mTc is a radionuclide widely used for imaging diagnosis in nuclear medicine. In Brazil it is obtained by elution from 99Mo-99mTc generators supplied by the Nuclear Energy Research Institute (IPEN).
Bernardo Maranhão Dantas, Ana Letícia Almeida Dantas, Fábio Luiz Navarro Marques, Luiz Bertelli, Michael G. Stabin   +4 more
doaj   +1 more source

Far‐field bioluminescent immune cell–mediated photodynamic therapy is limited by photon flux

Photochemistry and Photobiology, EarlyView.
Bioluminescent immune cell‐mediated photodynamic therapy uses tumor‐homing, luciferase‐expressing immune cells as internal light sources to activate photosensitizers in deep‐seated and/or micrometastatic tumors. Using both experiments and computational simulations, we find that this approach delivers insufficient far‐field energy to tumor cells to ...
Ji Tae Park, Sudip Timilsina, Rebecca C. Harman, Chi‐Yong Eom, Jeonghyun Oh, Qianqian Fang, Nozomi Nishimura, Chris B. Schaffer, Bryan Q. Spring   +8 more
wiley   +1 more source

Current internal-dosimetry practices at US Department of Energy facilities [PDF]

, 1985
The internal dosimetry practice at DOE facilities were characterized. The purpose was to determine the size of the facilities' internal dosimetry programs, the uniformity of the programs among the facilities, and the areas of greatest concern to health ...
Traub, R.J., Selby, J.M., Murphy, B.L., Vallario, E.J.   +3 more
core   +1 more source