Results 21 to 30 of about 42,153 (259)

Research on methodology of radioactive materials

He jishu, 2023
As a wide variety of radioactive materials with different characteristics and potential environmental risks existed, the domestic classification of radioactive items management was made, and The Classification and List of radioactive materials (Trial ...
ZHAN Lechang, BAO Jie, HAO Huijie, HONG Zhe   +3 more
doaj   +1 more source

Sources of radioactivity [PDF]

, 1964
This report is a summary of Hanford releases to the atmosphere of {sup 131}I, {sup 133}Xe, {sup 135}Xe, and tritium, during the period Sept. 1961 to Dec. 1963. The {sup 131}I released from the two separations plants stacks is measured continuously. Other potential sources of radioiodine to the atmosphere are also monitored, but the release rates from ...
openaire   +2 more sources

Green chitosan–starch–polyvinyl alcohol bio-composite hydrogel for zirconium capture from zircon raffinate

BMC Chemistry
A novel polymer-based sorbent comprising three blended components was synthesized via aqueous mixing and ultrasonication for the efficient removal of Zr(IV) from highly acidic solutions. Characterization by FT-IR, SEM, and surface area analysis confirmed
G. A. Dakroury, Sh. M. Abdo, E. A. A. El Shazly   +2 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source

Mass spectrometry based identification of AMP‐O‐Tris generated by Thermococcus onnurineus Cas10

FEBS Open Bio, EarlyView.
Isolated Thermococcus onnurineus Cas10 generates the noncanonical ATP‐derived product AMP‐O‐Tris while in Tris‐containing buffer as identified via mass spectrometry, revealing relaxed nucleophile selectivity under isolated conditions. These findings suggest that multiprotein Csm complex assembly restricts Cas10 reactivity toward canonical cyclic ...
Su‐Jin Lee, Ga Seul Lee, JinHan Kim, Kwang‐Hyun Park, Seong‐Ryung Go, Jeong Hee Moon, Eui‐Jeon Woo   +6 more
wiley   +1 more source

The Preparation Method of 22Na Gamma Radiation Source

Journal of Isotopes
Gamma-ray densitometers are widely used in industry due to their insensitivity to the measured medium and convenient installation. The gamma-ray radioactive source is the core component of the gamma-ray densitometer.
Mingyang LIU, Chunxia REN, Yan GAO
doaj   +1 more source

Radiation doses assessment for workers on radiation measuring devices response check in RNSD laboratories

Iraqi Journal of Physics, 2019
Radiation measuring devices need to periodic calibration process to examine their sensitivity and the extent of the response. This study is used to evaluate the radiation doses of the workers in the laboratories of the Directorate of Safety as a result ...
Abbas N. Mohammed
doaj   +1 more source

Implementation of safety and security standards for high dose rate brachytherapy sealed radioactive source used in a medical radiation facility

Radiation Medicine and Protection, 2020
Objective: To provide guidance on basic concepts and elements for radiation safety and security measures for a HDR brachytherapy sealed radioactive source in a medical radiation facility.
Rajni Verma, Gourav Kumar Jain, Arun Chougule   +2 more
doaj   +1 more source