This paper aimed to describe the prevalence of dental caries in Quilombola schoolchildren aged 5 12 years using DEF-T (decayed, extracted and filled teeth) DMF-T missing indices. A cross-sectional study. The sample consisted 47 schoolchildren, between old, both sexes, a municipal school located community Tocantins state (Brazil). participants underwent clinical oral examination, performed by de...

Small colony variants (SCVs) of bacteria like Staphylococcus aureus are characterized by a reduced colony size and are linked to increased antibiotic tolerance and resistance. Their altered expression of virulence factors, slow growing properties and their ability to form biofilms make the eradication of SCVs challenging. In the context of biofilm-related infectious diseases involving S. aureus...

Gold nanoparticles have been shown to enhance radiation doses delivered to biological targets due to the high absorption coefficient of gold atoms, stemming from their high atomic number (Z) and physical density. These properties significantly increase the likelihood of photoelectric effects and Compton scattering interactions. Gold nanoparticles are a novel radiosensitizing agent that can pote...

Inhibitors of the oncogenic Ras-MAPK pathway have been intensely pursued as therapeutics. Targeting this pathway, however, presents challenges due to the essential role of MAPK in homeostatic functions. The phosphorylation and activation of MAPK substrates is regulated by protein-protein interactions with MAPK docking sites. Active ERK1/2 (extracellular signal-regulated kinase 1/2)-MAPKs locali...

We'll review the study of Galois deformations. Here's the setup. Let G be a pro nite group, and let ρ : G→ GLn(k) be a representation of G over a nite eld k of characteristic p. Let Λ be a complete DVR with residue eld k, and let CΛ denote the category whose objects are artinian local Λ-algebras with residue eld k, and whose morphisms are local homomorphisms. Let ĈΛ denote the category of compl...

A surface energy-based mechanism for expansion in cement systems susceptible to Delayed Ettringite Formation (DEF) is proposed. The volume change behavior of nanoporous materials filled with impregnants and exposed to water vapor (considered analogous to the DEF situation) is described. The relevance of expansion due to Bangham swelling and dissolution phenomena is explained. The role of microc...

This paper describes the synthesis of a new typeof nanowires, potassium tetracyanoplatinate sesquihydrate Krogmann salt or K(def )TCP. Seed-mediated electrocrystallization nucleates and confines the K(def )TCP crystals into nanowires. Our data show that the width of K(def )TCP scales proportionally with the diameter of the seed, which is consistent with the nanoconfinement effect of the seed. K...

The purpose of these studies was to quantify the effects of radiation given to mouse lungs at intervals up to 6 months after injection of the maximally tolerated dose of cyclophosphamide. In one set of experiments a single i.p. injection of 300 mg/kg of cyclophosphamide was followed at either 1, 3, or 6 months by a range of single doses of gamma-rays delivered to the whole thorax only. In a sec...

Delayed Ettringite Formation (DEF) and Alkali-Aggregate Reaction (AAR) are both endogenous swelling processes that can affect concrete. They lead to a decrease of the mechanical properties, cracking and unexpected deformations and thus induce severe concerns in terms of structural integrity for affected structures. This paper describes an experimental investigation concerning the mechanical eff...