The mass attenuation coefficients, mu/rho, for Clear-Pb for photon energies ranging from 10 keV to 10 MeV were determined using Monte Carlo methods and simple equations used to manipulate elemental mass attenuation coefficients. It was determined that the effectiveness of Clear-Pb as a radiation shielding material was greater than plain acrylic for all photon energies, especially those less than 150 keV, and for deep penetration problems where the differences in mu/rho between Clear-Pb and acrylic became more significant. Finally, the usefulness of Clear-Pb as a shielding material when compared with acrylic was determined for the following commonly used radionuclides: 125I, 103Pd, 99mTc, 192Ir, 137Cs, and 60Co.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/00004032-199911000-00011 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Cross-Sectional Association Between Ultra-Processed Food Intake and Metabolic Dysfunction-Associated Steatotic Liver Disease.
Clin Nutr ESPEN
January 2025
Section of Preventive Medicine and Epidemiology, Department of Medicine, Chobanian and Avedisian School of Medicine, Boston University; Department of Health Sciences, Sargent College of Health and Rehabilitation Sciences, Boston University. Electronic address:
Background And Aims: The prevalence of Metabolic Dysfunction-Associated Steatotic Liver Disease has increased in parallel with a rise in consumption of ultra-processed foods (UPF), but little is known about their association.
Methods: We cross-sectionally examined associations of UPF with hepatic steatosis and fibrosis in 2,458 (mean age 54 years; 55.9% women) community-dwelling adults who completed vibration-controlled transient elastography and a food frequency questionnaire.
Potential for application of direct thrombin inhibitors isolated from Euphorbia resinifera O.Berg latex in fibrin clot formation.
J Chromatogr B Analyt Technol Biomed Life Sci
January 2025
Department of Biological Science, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, Thailand.
Direct thrombin inhibitors (designated as EuRL-DTIs) were partially purified from ethanol extracts of Euphorbia resinifera O.Berg latex. The obtained EuRL-DTIs comprised four major compounds: two isomers of phenolic compounds (CHO) and two amide compounds (tentatively identified as CHNO and CHNO), as identified by liquid chromatography and electrospray ionisation quadrupole time-of-flight mass spectrometry (LC-ESI-QTOF-MS/MS), attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy, and/or nuclear magnetic resonance (NMR) spectroscopy.
View Article and Find Full Text PDFType 3 deiodinase activation mediated by the Shh/Gli1 axis promotes sepsis-induced metabolic dysregulation in skeletal muscles.
Burns Trauma
January 2025
Department of Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, Jiangsu 210008, China.
Background: Non-thyroidal illness syndrome is commonly observed in critically ill patients, characterized by the inactivation of systemic thyroid hormones (TH), which aggravates metabolic dysfunction. Recent evidence indicates that enhanced TH inactivation is mediated by the reactivation of type 3 deiodinase (Dio3) at the tissue level, culminating in a perturbed local metabolic equilibrium. This study assessed whether targeted inhibition of Dio3 can maintain tissue metabolic homeostasis under septic conditions and explored the mechanism behind Dio3 reactivation.
View Article and Find Full Text PDFAnti-inflammatory effects of palm11-PrRP31 in a rat model of lipopolysaccharide-induced acute inflammation.
J Mol Endocrinol
January 2025
L Maletinska, Biochemistry, Czech Academy of Sciences, Praha, Czech Republic.
Lipopolysaccharides (LPS) are major components of Gram-negative bacteria. LPS not only induce endotoxemia and inflammation, but also contribute to various diseases. In experimental settings, LPS administration serves as a model for acute inflammatory responses.
View Article and Find Full Text PDFGut microbiome and serum metabolites in neuropathic pain: The PPARα perspective.
Behav Brain Res
January 2025
Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China. Electronic address:
Neuropathic pain (NP) is a chronic disease state centred on neuroinflammation with a high prevalence and limited effective treatment options. Peroxisome proliferator-activated receptor α (PPARα) has emerged as a promising target for NP management due to its anti-inflammatory properties. Recent evidence highlights the critical role of the gut microbiome and its metabolites in NP pathogenesis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!