Results 21 to 30 of about 350,193 (214)

Performance studies of scintillating ceramic samples exposed to ionizing radiation [PDF]

, 2012
Scintillating ceramics are a promising, new development for various applications in science and industry. Their application in calorimetry for particle physics experiments is expected to involve an exposure to high levels of ionizing radiation.
Dissertori, G., Luckey, D., Nessi-Tedaldi, F., Pauss, F., Wallny, R.   +4 more
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

Filament based Ionizing Radiation Sensing Technology [PDF]

arXiv, 2023
Accidental exposure to overdose ionizing radiation will inevitably lead to severe biological damage, thus detecting and localizing radiation is essential. Traditional measurement techniques are generally restricted to the limited detection range of few centimeters, posing a great risk to operators.
arxiv  

Comment on "Stress induction in the bacteria Shewanella oneidensis and Deinococcus radiodurans in response to below-background ionizing radiation", Castillo, et al. Int. J. Rad. Biol., 2015; Early Online DOI:10.3109/09553002.2015.1062571 [PDF]

Int. J. Rad. Biol. 92, 169 (2016), 2015
Castillo, et al. report hormesis by background levels of radiation, at which there is $< 10^{-3}$ ionization per bacterium in a replication time. This suggests radiation products accumulate in the growth medium over much longer times. Experiments are proposed to test this hypothesis.
arxiv   +1 more source

Plasma‐activated media selectively induces apoptotic death via an orchestrated oxidative stress pathway in high‐grade serous ovarian cancer cells

Molecular Oncology, Volume 19, Issue 4, Page 1170-1187, April 2025.
High‐grade serous ovarian cancer (HGSOC) is the most common and aggressive type of ovarian cancer with urgent need for new treatment strategies. This study evaluates plasma‐activated media (PAM) as a novel treatment for HGSOC, showing its ability to selectively induce oxidative stress and apoptosis in HGSOC cell lines, patient ascites cells and primary
Lorena T. Davies, Raja Ganesen, John Toubia, Sung‐Ha Hong, Sushil Kumar KC, Martin K. Oehler, Carmela Ricciardelli, Endre J. Szili, Nirmal Robinson, Melissa R. Pitman   +9 more
wiley   +1 more source

Photofrin II as an efficient radiosensitizing agent in an experimental tumor [PDF]

, 2001
Background and Objective: The use of ionizing irradiation as radiation therapy (RT) for tumor treatment represents a well-established method. The use of photodynamic therapy (PDT), especially with Photofrin II, for tumor treatment is also known. Chemical
Corti, L., Dühmke, Eckhart, Hofstetter, Alfons, Jori, G., Schaffer, Moshe, Schaffer, Pamela Manuela, Sotti, G.   +6 more
core   +1 more source

The CDK12–BRCA1 signaling axis mediates dinaciclib‐associated radiosensitivity through p53‐mediated cellular senescence

Molecular Oncology, Volume 19, Issue 4, Page 1265-1280, April 2025.
Dinaciclib blocks CDK12 activity, leading to downregulation of BRCA1, and probably other proteins involved in homologous recombination, promoting nonhomologous end joining. In this scenario, the presence of ionising radiation triggers a p53‐dependent senescent response that yields increased radiosensitivity. Pan‐cyclin‐dependent‐kinase (CDK) inhibitors
Natalia García Flores, Diego M. Fernández‐Aroca, Cristina Garnés‐García, Andrés Domínguez‐Calvo, Jaime Jiménez‐Suárez, Sebastià Sabater, Pablo Fernández‐Aroca, Ignacio Andrés, Francisco J. Cimas, Guillermo de Cárcer, Borja Belandia, Ignacio Palmero, Pablo Huertas, María José Ruiz‐Hidalgo, Ricardo Sánchez‐Prieto   +14 more
wiley   +1 more source

Time-dependent Photoionization of Gaseous Nebulae: the Pure Hydrogen Case [PDF]

, 2013
We study the problem of time-dependent photoionization of low density gaseous nebulae subjected to sudden changes in the intensity of ionizing radiation. To this end, we write a computer code that solves the full time-dependent energy balance, ionization balance, and radiation transfer equations in a self-consistent fashion for a simplified pure ...
arxiv   +1 more source

SKA1 promotes oncogenic properties in oral dysplasia and oral squamous cell carcinoma, and augments resistance to radiotherapy

Molecular Oncology, Volume 19, Issue 4, Page 1054-1074, April 2025.
The mitosis‐related gene SKA1 was among 629 genes consistently dysregulated in OSCC across nine public gene expression datasets. In OSCC cell lines, SKA1 promoted proliferation and migration, enhanced radioresistance, and reduced radiation‐induced senescence.
Alexander Michael Grandits, Barbara Andrea Reinoehl, Renate Wagner, Peter Kuess, Franziska Eckert, Anna Sophie Berghoff, Thorsten Fuereder, Rotraud Wieser   +7 more
wiley   +1 more source

Public Awareness of Medical Imaging as a Source of Ionizing Radiation Exposure [PDF]

, 2017
Background. Biological effects of exposure to ionizing radiation (IR) are well known. Literature suggests most patients and physicians lack proficient understanding of risks associated with ionizing radiation.
Carney, Jan, Fields, Tim, Hall, Michael J, Hoffman-Contois, Razelle, Irwin, William, Janardhan, Arjun, Leung, Lawrence J, Magier, Samantha, Robbins, Allison B, Warther, Katie C   +9 more
core   +1 more source