Dam, the most described bacterial DNA-methyltransferase, is widespread in gamma-proteobacteria. Dam DNA methylation can play a role in various genes expression and is involved in pathogenicity of several bacterial species. The purpose of this study was to determine the role played by the dam ortholog identified in the entomopathogenic bacterium Photorhabdus luminescens. Complementation assays o...

<p>Currently, the frequency of floods and droughts is becoming more frequent can threaten agricultural production system national food security. Rainfall in dry land, especially land climates, fall large quantities a short time resulting excess water rainy season lack season. Most will flow as runoff, so rainwater runoff harvest are necessary. Rainwater harvesting surface through various ...

According to the General Plan of city's perspective development, it is planned develop territories irrigation fields and adjoining dam. The article details engineering tasks erecting foundation-basement construction underground structures considering geological hydrogeological conditions low-lying area Odessa region. Features occurrence genesis part sites have been elaborated. paper also elucid...

The Three Gorges Dam, located in the largest endemic area of schistosomiasis in China, is one of the world's largest hydroelectric projects to date. Some large-scale hydro projects have resulted in schistosomiasis emergence or re-emergence. Therefore, the dam's potential impact on the transmission of Schistosoma japonicum has raised concerns from medical researchers worldwide. A systematic lite...

The factors influencing dam safety are complex and their impact on dam safety is fuzzy and uncertain. With the introduction of the Dempster-Shafer theory, BP neural network and Jousselme distance function into dam safety monitoring, a new method for dam safety evaluation is explored. Firstly, the basic probability assignment of the factors influencing dam safety is determined by BP neural netwo...

DNA adenine methyltransferase (Dam) not only regulates basic cellular functions but also interferes with the proper expression of virulence factors in various pathogens. We showed previously that for the human pathogen Yersinia enterocolitica, overproduction of Dam results in increased invasion of epithelial cells. Since invasion and motility are coordinately regulated in Y. enterocolitica, we ...

Pasteurella multocida is one of the primary bacterial pathogens associated with bovine respiratory disease (BRD) complex. Relatively few virulence factors of P. multocida have been characterized, and there is a need for improved vaccines for prevention of BRD. In other Gram-negative species, DNA adenine methylase (Dam) regulates the expression of virulence genes, and appropriate expression of D...

Dam removal is an increasingly popular restoration tool, but our understanding of ecological responses to dam removal over time is still in the early stages. We quantified seasonal benthic macroinvertebrate density, taxonomic composition, and functional traits for three years after lowhead dam removal in three reaches of the Olentangy River (Ohio, USA): two upstream of former dam (one restored,...

water user associations (wuas) are one of the water market development models and a way to transfer the irrigation management from government sector to water users which have been increasingly taken into account over the recent years. in iran accordingly, a number of wuas has been developed in downstream dam irrigation and drainage networks on pilot scale. the major goal of wuas is to improve w...