The present study evaluated the effect of repeated simulated microwave disinfection on physical and mechanical properties of Clássico, Onda-Cryl and QC-20 denture base acrylic resins. Aluminum patterns were included in metallic or plastic flasks with dental stone following the traditional packing method. The powder/liquid mixing ratio was established according to the manufacturer's instructions...

BACKGROUND There is a growing concern that barbering procedures could create opportunities for HIV transmission. However, little is known about Nigerian barbers' practices relating to the prevention of HIV. OBJECTIVES This study assessed the precautionary measures for the prevention of HIV among commercial barbers in Ibadan, Nigeria. METHODS Data were collected using validated checklist to ...

Domestic water wells are routinely subjected to in situ chemical disinfection treatments to control nuisance or pathogenic bacteria. Most treatments are chlorine based and presumably cause strongly oxidizing conditions in the wellbore. Water resource managers in Wisconsin were concerned that such treatments might facilitate release of arsenic from sulfide minerals disseminated within a confined...

tants discharged from pulp and paper mills, tanneries, distilleries, dye and paint manufacturing and pharmaceuticals industry (Crosby, 1981). The major source of CPs is as by-products when chlorine is used for bleaching of pulp and for disinfections of drinking water. Therefore, large amounts of chlorinated aromatic compounds, including CPs, have been discharged into the environment (Steinle et...

The effects of free chlorine disinfection of tap water and wastewater effluents on the infectivity, gene integrity and surface antigens of rotaviruses were evaluated by a bench-scale chlorine disinfection experiments. Plaque assays, integrated cell culture-quantitative RT-PCR (ICC-RT-qPCR), RT-qPCR, and enzyme-linked immunosorbent assays (ELISA), respectively, were used to assess the influence ...

Botnets, in particular the Storm botnet, have been garnering much attention as vehicles for Internet crime. Storm uses a modified version of Overnet, a structured peer-to-peer (P2P) overlay network protocol, to build its command and control (C&C) infrastructure. In this study, we use simulation to determine whether there are any significant advantages or disadvantages to employing structured P2...

Background: Ventilator-associated pneumonia (VAP) is the most prevalent and lethal form of nosocomial infections in the ICU and oral disinfection is a nursing measure to prevent this condition. Aim: this study aimed to evaluate the effect of oronasal versus oral disinfections with chlorhexidine on the clinical criteria for diagnosis of VAP. Method: This randomized clinical trial was conducted o...

background: ventilator-associated pneumonia (vap) is the most prevalent and lethal form of nosocomial infections in the icu and oral disinfection is a nursing measure to prevent this condition. aim: this study aimed to evaluate the effect of oronasal versus oral disinfections with chlorhexidine on the clinical criteria for diagnosis of vap. method: this randomized clinical trial was conducted o...

COVID-19 is considered as a major public health problem caused by the SARS CoV-2. This Viral infection known to induce worldwide pandemic in short period of time. Emerging evidence suggested that transmission control and drug therapy may influence preventive measures extensively host surrounding environment pathogenic mechanism contribute condition earlier disease. Although, several animals ide...