Water samples from 3 indoor swimming pool facilities were tested to evaluate UV-induced effects on swimming pool water chemistry. Concentration change of several DBPs was investigated in experiments including medium pressure UV treatment with and without chlorine and post-UV chlorination. Post-UV chlorine consumption increased, dose-dependently, with UV treatment dose. A clear absence of trihal...

OBJECTIVES AND METHODS Chlorination has been the major disinfectant process for domestic drinking water for many years. Concern about the potential health effects of the byproducts of chlorination has prompted the investigation of the possible association between exposure to these byproducts and incidence of human cancer, and more recently, with adverse reproductive outcomes. This paper evaluat...

The chlorination of dissolved amino acids can generate disinfection by-products (DBPs). To prevent the formation DBPs, we examined UV-induced degradation tryptophan (Trp). In order to further understand impact UV on Trp, effects initial concentrations pH, temperature, NO3?, HCO3? and Cl? Trp removal were investigated, a mechanism was also proposed. results demonstrated that fitted pseudo first-...

Contaminants of emerging concern (CECs) are widespread in the water cycle. Their levels disinfected waters usually low, as they may transform into CEC disinfection byproducts (DBPs) during processes or partially removed previous treatment steps. The occurrence DBPs real has been scarcely addressed, although their presence be relevance circular economy scenarios, and thus deserves further study ...

This article is focused on the epidemiological evidence on the health impacts related to disinfection by-products (DBPs) in swimming pools, which is a chemical hazard generated as an undesired consequence to reduce the microbial pathogens. Specific DBPs are carcinogenic, fetotoxic and/or irritant to the airways according to experimental studies. Epidemiological evidence shows that swimming ...

Previous research has suggested that exposure to elevated levels of drinking water disinfection by-products (DBPs) may cause pregnancy loss. In 2000-2004, the authors conducted a study in three US locations of varying DBP levels and evaluated 2,409 women in early pregnancy to assess their tap water DBP concentrations, water use, other risk factors, and pregnancy outcome. Tap water concentration...

Proteins with insignificant sequence and overall structure similarity may still share locally conserved contiguous structural segments; i.e. structural/3D motifs. Most methods for finding 3D motifs require a known motif to search for other similar structures or functionally/structurally crucial residues. Here, without requiring a query motif or essential residues, a fully automated method for d...

The recognition of DNA-binding proteins (DBPs) to their specific site often precedes by a search technique in which proteins slide, hop along the DNA contour or perform inter-segment transfer and 3D diffusion to dissociate and re-associate to distant DNA sites. In this study, we demonstrated that the strength and nature of the non-specific electrostatic interactions, which govern the search dyn...

Received in: 04/24/06; approved in: 07/07/06 inTRoDUcTion Although autologous nervous graft is a treatment alternative for nervous injuries in which primary repair cannot be made without using excessive tension, some difficulties exist in using this technique, such as the adjustment of graft’s length and diameter. Numerous attempts have been made intending to induce nervous regeneration in nerv...

The National Center for Integrative and Biomedical Informatics (NCIBI) is one of the eight NCBCs. NCIBI supports information access and data analysis for biomedical researchers, enabling them to build computational and knowledge models of biological systems to address the Driving Biological Problems (DBPs). The NCIBI DBPs have included prostate cancer progression, organ-specific complications o...