BACKGROUND The relationship between chlorination by-products (CBPs) in drinking water and human health outcomes has been investigated in many epidemiological studies. In these studies, population exposure assessment to CBPs in drinking water is generally based on available CBP data (e.g., from regulatory monitoring, sampling campaigns specific to study area). Since trihalomethanes (THMs) and ha...

Using a sensitive assay, we observed low levels of an unknown surfactant produced by Pseudomonas syringae pv. syringae B728a that was not detected by traditional methods yet enabled swarming motility in a strain that exhibited deficient production of syringafactin, the main characterized surfactant produced by P. syringae. Random mutagenesis of the syringafactin-deficient strain revealed an acy...

This paper deals with the antioxidant and antimicrobial activity, total phenolic content and concentrations of flavonoids of Equisetum telmateia extracts. Total phenolic content was determined with Folin-Ciocalteu reagent and it ranged between 129.0 to 262.7 mg GA/g. The concentration of flavonoids in various extracts of E. telmateia was determined using spectrophotometric method with aluminum ...

This study investigates the costume styling and material composition of Effutu festival costumes. It is delimited to performance The qualitative design was adopted. ethnography approach employed through narrative analysis oral history. Unstructured interviews on-site direct observations were data collection instrument used for collection. analyse data. findings revealed that historically costum...

A Miocene macroflora recovered from Ñirihuau Formation sediments exposed at Quebrada Vera site in northwesterern Patagonia, Argentina, is recorded and described for the first time. The assemblage composed exclusively of free-sporing plants, mainly by Equisetum remains with subordinate occurrences four fern morphotypes (represented bi-, tri- pinnate fronds). imprints molds include distinctive jo...

Several key processes in the cell, such as vesicle transport and spindle positioning, are mediated by the motor protein cytoplasmic dynein, which produces force on the microtubule. For the functions that require movement of the centrosome and the associated nuclear material, dynein needs to have a stable attachment at the cell cortex. In fission yeast, Mcp5 is the anchor protein of dynein and i...

The fission yeast Schizosaccharomyces pombe is especially well-suited for both genetic and biochemical analysis of meiotic recombination. Recent studies have revealed ~50 gene products and two DNA intermediates central to recombination, which we place into a pathway from parental to recombinant DNA. We divide recombination into three stages - chromosome alignment accompanying nuclear "horsetail...

Abstract Shifts in plant functional groups associated with climate change have the potential to influence peatland carbon storage by altering amount and composition of organic matter available aquatic microbial biofilms. The goal this study was evaluate for subsidies regulate ecosystem flux (CO 2 ) governing relative proportion primary producers (microalgae) heterotrophic decomposers (heterotro...

Abstract We report the use of carbon nanotubes as a material for preparation an electrochemical sensor that acts substrate film metal electrodes used in stripping voltammetry. The is based on mixture multiwall nanotubes, glassy spherical powder, and epoxy resin. properly selected composition made it possible to obtain new substrate, competitive relation carbon, creating electrodes. In this work...