Results 61 to 70 of about 2,461,604 (426)

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

open access: yes, 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.   +6 more
core   +1 more source

Implications of the COVID-19 pandemic on self-reported health status and noise annoyance in rural and non-rural Canada

open access: yesScientific Reports, 2022
The Canadian Perspectives on Environmental Noise Survey (CPENS), conducted between April 12th, 2021 and May 25th, 2021 coincided with the third wave of the COVID-19 pandemic. Canadians 18 years of age and older (n = 6647) reported the degree to which the
David S. Michaud   +6 more
doaj   +1 more source

Acute and Chronic Cutaneous Reactions to Ionizing Radiation Therapy

open access: yesDermatologic Therapy, 2016
Ionizing radiation is an important treatment modality for a variety of malignant conditions. However, development of radiation-induced skin changes is a significant adverse effect of radiation therapy (RT). Cutaneous repercussions of RT vary considerably
F. Bray   +3 more
semanticscholar   +1 more source

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

open access: yesMolecular 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   +14 more
wiley   +1 more source

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

open access: yes, 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   +9 more
core   +1 more source

Effect of Non-Ionizing Radiations on Liver and Kidney Function Tests in an Animal Model [PDF]

open access: yesJournal of Biomedical Physics and Engineering
Background: Nowadays, the growing use of non-ionizing electromagnetic radiation has raised concerns about its potential health effects.Objective: In this work, an animal model exposed to Wi-Fi and jammer signals was used to examine the effects of non ...
Somayeh Farahani   +3 more
doaj   +1 more source

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

open access: yes, 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

Mutational signatures of ionizing radiation in second malignancies

open access: yesNature Communications, 2016
Ionizing radiation is a potent carcinogen, inducing cancer through DNA damage. The signatures of mutations arising in human tissues following in vivo exposure to ionizing radiation have not been documented.
S. Behjati   +84 more
semanticscholar   +1 more source

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

open access: yesMolecular 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   +7 more
wiley   +1 more source

Passage of a Gamma-Ray Burst Through a Molecular Cloud: Cloud Ionization Structure [PDF]

open access: yesAstronomy Letters 50, pp. 99-119 (2024)
The model is constructed of the propagation of gamma-ray burst radiation through a dense molecular cloud. The main processes of the interaction of the radiation with the interstellar gas are taken into account in the simulations: the ionization of H and He atoms, the ionization of metal ions and the emission of Auger electrons, the photoionization and ...
arxiv   +1 more source

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