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Breast cancer in Bulgaria prior implementation of a national breast cancer screening program and certified breast centers.
J Cancer Policy
December 2024
Medical University Pleven, Kliment Ohridski 1, Pleven 5800, Bulgaria; University of Essex, United Kingdom.
Introduction: Breast cancer (BC) survival has improved globally in the past years. Eastern Europe is a region with lack of epidemiological data and traditionally lower BC overall survival (OS). We aimed to investigate the epidemiology of BC in Bulgaria between 2012 and 2022 and the readiness of the state for implementing population based organized screening program.
View Article and Find Full Text PDFEffect of lead oxide addition on gamma radiation shielding properties of newly developed geopolymers: theoretical and simulation studies.
Sci Rep
December 2024
Department of Physics, Sakarya University, Sakarya, Turkey.
The efficiency of geopolymers as an effective immobilization system for various hazardous waste materials can be enhanced by adding PbO to improve its radiation shielding characteristics. In this study, the impact of PbO addition on the shielding properties of geopolymer composites was examined to evaluate the gamma radiation shielding characteristics of the geopolymer using FLUKA and XCOM computer programs. The results showed that adding 10% and 20% lead oxide significantly improved the shielding properties of the investigated geopolymer, mostly at lower photon energies.
View Article and Find Full Text PDFSimultaneous measurement of labile U(VI) concentration and (U/U) activity ratio using a Monophos®-based Diffusive Gradients in thin-films sampler.
Anal Chim Acta
November 2024
Departament de Química, Física i Ciències Ambientals i del Sòl, Universitat de Lleida and AGROTECNIO-CERCA, Rovira Roure 191, 25198, Lleida, Spain.
Background: In a context of environmental monitoring around installations related to the nuclear fuel cycle, the Diffusive Gradient in Thin-films (DGT) technique captures the integrated concentration of U isotopes in their native environment, yielding comprehensive data on U origin (anthropogenic vs natural), total concentration, and mobility. However, for common deployment times (4-5 days) in moderately basic waters, none of the commercially available binding gels is adapted to measure the total U concentration. So, the development of novel DGT binding gels is timely.
View Article and Find Full Text PDFAssessment of background dose rate on non-human biota in a Mediterranean terrestrial ecosystem.
Environ Sci Pollut Res Int
November 2024
CSN, Nuclear Safety Council, c/ Pedro Justo Delgado Dellmans, 11, 28040, Madrid, Spain.
The assessment of radiological impact to the environment is usually carried out by the dose rate estimation to hypothetical entities named Reference Animals and Plants (RAPs). There are many codes to carry out this assessment, which requires the definition of a scenario and using site-specific transfer parameters when possible. Transfer parameters present a geographical bias, as they are mostly derived from temperate and arctic climate datasets, but there is a scarcity of data for Mediterranean climates.
View Article and Find Full Text PDFRadiation shielding transmission data for modern digital radiography.
Med Phys
December 2024
Division of Diagnostic Imaging Physics, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA.
Article Synopsis
- Radiography uses x-ray machines to take images, and there's new info about how these machines work since some rules changed in 2006.
- The study measured how well modern x-ray machines (like Agfa and GE) send x-rays through different materials to see how much they are blocked.
- The findings showed that using extra materials to filter the x-rays helps them stay stronger and safer when used for images, improving the way we protect against radiation.
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