Contaminated mine water with a large amount of salts makes underground and surface water sources unsuitable for household and drinking needs.Already in 2016, there was a shortage of drinking water in the Rostov region.Water from surface sources does not meet the hygienic requirements for chemical parameters in 36.1% of the samples taken.Water from
The Space Physics and Aeronomy (SPA) Section of the American Geophysical Union (AGU) created a Nomination Task Force Collections (NTF) in 2017 upon concerns that the numbers of women nominated for AGU Fellow were significantly lower than would be expected based on SPA membership representation, including as low as zero in two of the four preceding
This paper assesses the impact of assistance on the wellbeing of Palestinian households.The impact evaluation analysis uses a difference-in-difference approach for the treatment of sample selection bias.The paper uses data from the 2013 and 2014 rounds of the Palestinian Socio-Economic and Food Security survey to estimate the impact of assistance t
Weeds, such as Phalaris spp., can drastically reduce the yield of crops, and the evolution of resistance to herbicides has further exacerbated Collections this issue.Thus far, 23 cases of herbicide resistance in 11 countries have been reported in Phalaris spp., including Phalaris minor Retz., Phalaris paradoxa L., and Phalaris brachystachys L., for
In view of problems of single determination way and high computational complexity of joint elongation of steel cord conveyor belt, a calculation method of joint elongation of steel cord conveyor belt based on X-ray image was proposed.Histogram equalization and mean filter are used to pretreat image for improving image contrast and effectively solvi