Effect of BiO Particle Size on the Radiation-Shielding Performance of Free-Lead Epoxide Materials against Ionizing Radiation.

In this work, we studied the effect of bismuth oxide particle size and its attenuation capacity as a filler additive in epoxy resins. Six samples were prepared according to the amount of microparticles and nanoparticles in the sample and were coded as ERB-1, ERB-2, ERB-3, ERB-4, ERB-5, and ERB-6. One of the composite epoxies contained BiO microparticles at a 50:50 ratio (ERB-6) and was chosen as the control composite, and the number of microparticles (MPs) was gradually decreased and replaced by nanoparticles (NPs) to produce epoxy-containing BiO nanoparticles at a 50:50 ratio (ERB-1).

A comprehensive study of the shielding ability from ionizing radiation of different mortars using iron filings and bismuth oxide.

The current work discusses the radiation attenuation capability and different shielding characteristics of different mortar samples. The samples were prepared by replacing different percentages of fine aggregate with iron filling and replacing different percentages of hydrated lime with BiO (0-50 wt.%).

Multilayer radiation shielding system with advanced composites containing heavy metal oxide nanoparticles: a free-lead solution.

With the use of multilayer materials such as concrete, mortar and ceramics that were fortified with PbO, WO and BiO nanoparticles, our study's objective was to produce a an effective photon shielding system. Experimental evaluation of the radiation shielding efficiency of two sets of samples with various thicknesses was conducted. The elemental content and morphology of the samples were corroborated by SEM and EDX studies, with ceramic samples exhibiting superior particle distribution and fewer voids than concrete and mortar specimens.

Knowledge of and behaviors toward a gluten-free diet among women at a health sciences university.

Purpose: Gluten-free diets have gained popularity worldwide. However, little information is available regarding the knowledge of, and behaviors toward, this diet among adults in KSA. This study was aimed at addressing this knowledge gap.

Nanostructured Bioaerogels as a Potential Solution for Particulate Matter Pollution.

Particulate matter (PM) pollution is a significant environmental and public health issue globally. Exposure to high levels of PM, especially fine particles, can have severe health consequences. These particles can come from a variety of sources, including natural events like dust storms and wildfires, as well as human activities such as industrial processes and transportation.

Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation.

This study aims to investigate the impact of CeO content and particle size on the radiation shielding abilities of polydimethylsiloxane, also known as silicon rubber (SR). We prepared different SR samples with 10, 30, and 50% of micro and nano CeO and we measured the linear attenuation coefficient (LAC) for these samples. We found that the LAC of the SR increases by increasing the CeO and all prepared SR samples had higher LACs than the pure SR.

Grafting red clay with BiO nanoparticles into epoxy resin for gamma-ray shielding applications.

We developed new composites for photons shielding applications. The composite were prepared with epoxy resin, red clay and bismuth oxide nanoparticles (BiO NPs). In order to establish which ratio of red clay to BiO NPs provides the best shielding capabilities, several different ratios of red clay to BiO NPs were tested.

The Incidence of Peripheral Intravenous Catheter Phlebitis and Risk Factors among Pediatric Patients.

Background: Phlebitis is one of the most common complications of peripheral intravenous catheter (PIVC) that can lead to many complications, including higher medical costs and longer hospital stays.

Objective: To identify the incidence of phlebitis associated with PIVC and determine its risk factors among hospitalized pediatric patients.

Methods: An observational and cross-sectional design was used.