A declining crocodile population and fish mortalities attributed to pansteatitis, along with increasing blooms of Microcystis aeruginosa and Ceratium hirundinella, have led to serious concerns about water quality in Loskop Dam, on the Olifants River, South Africa. Major impacts include acid mine drainage and eutrophication associated with sewage effluent. However, the specific causes of panstea...

Edwardsiella tarda is a serious aquaculture pathogen that can infect many cultured fish species. The aim of this study was to investigate the potential importance of DNA adenine methylase (Dam) in E. tarda pathogenesis. The E. tarda dam gene (dam(Et)) was cloned from a pathogenic strain, TXD1, isolated from diseased fish. Dam(Et) shares high (70.2%) sequence identity with the Dam proteins of Ye...

Rubber dam is considered an ideal device for tooth isolation. Nevertheless, its usage is quite rare in the Czech Republic. The aim of this study was: firstly, to gather and evaluate information regarding the use of rubber dam by dentists in the Czech Republic and to compare it with other countries; secondly to find out whether there are any influencing factors as to rubber dam usage; and finall...

The Xiaolangdi Dam is a key project for the control and development of Yellow River. It bears functions flood control, controlling water sediment in lower reaches, ice prevention, industrial agricultural supply, power generation, so on. Its safety related to people’s life property local economic social development. great significance carry out comprehensive regular deformation monitoring dams s...

DNA adenine methylase mutants of Salmonella typhimurium contain reduced amounts of FinP, an antisense RNA encoded by the virulence plasmid pSLT. Lowered FinP levels are detected in both Dam- FinO+ and Dam- FinO- backgrounds, suggesting that Dam methylation regulates FinP production rather than FinP half-life. Reduced amounts of F-encoded FinP RNA are likewise found in Dam- mutants of Escherichi...

Horizontal displacement of Hoa Binh dam in operation phase is analyzed and then forecasted by using three methods: the multi-regression model (MTR), Seasonal Integrated Auto-regressive Moving Average (SARIMA) Back-propagation Neural Network (BPNN) model. The monitoring data Dam 137 periods, including horizontal displacement, time, reservoir water level air temperature, are used for experiments....

The waters of the Sumi dam have an important role in accordance with purpose its construction. Therefore, monitoring water quality becomes necessary because good is requirement for every organism. This study aims to examine based on community and species diversity phytoplankton. sampling location was determined purposive method. Water samples were taken April 2021 using a 20 micron plankton net...

The deformation of arch dam during impoundment is critical to evaluate the safety dam, which influenced by many factors that have different action mechanisms. After monitoring data at stages were comprehensively analyzed, a finite element simulation analysis model can consider real temperature, stress and was set up with help method based on whole process effectively separate single caused wate...

In this study, we demonstrated that the methyltransferase activity associated with Dam was essential for attenuation of Aeromonas hydrophila virulence. We mutated aspartic acid and tyrosine residues to alanine within the conserved DPPY catalytic motif of Dam and transformed the pBAD/damD/A, pBAD/damY/A, and pBAD/damAhSSU (with the native dam gene) recombinant plasmids into the Escherichia coli ...

Investment in the small-scale enhancement of groundwater recharge through check dams and other structures rural India is on order USD 1 billion/year. However, for any catchment, optimal capacity unknown, impacts downstream flows are rarely determined. This paper describes a method that can be applied to plan augmentation catchments have at least one monitored dam. It was Dharta catchment Araval...