First posted May 25, 2021 For additional information, contact: Director,Nevada Water Science CenterU.S. Geological Survey2730 N. Deer Run RoadCarson City, Nevada 95819 The lower Las Vegas Wash represents the terminal surface drainage for Valley in southern Nevada. In 1997, high concentrations of perchlorate were found seeps contributing to discharge this area and traced an industrial byproduct ...

Industrial pollution has been continuously soaring and causing serious threats to the soil, water, air quality. The increase in industrialization not only covered large areas, but also created a quantity of wastewater which is difficult handle. water produced from different industries getting its place agriculture. However, challenge properly use wastewater, so that application does cause any s...

The spread of antibiotic-resistant bacteria is a growing problem and a public health issue. In recent decades, various genetic mechanisms involved in the spread of resistance genes among bacteria have been identified. Integrons - genetic elements that acquire, exchange, and express genes embedded within gene cassettes (GC) - are one of these mechanisms. Integrons are widely distributed, especia...

background: as glass ionomers have the ability to reload fluoride from outside sources, the aim was to compare the recharge pattern of six glass ionomer cements after exposure to fluoride. materials and methods: fuji vii, fuji ix, riva pink, riva bleach, ketac fil and fuji ix extra were investigated. the fluoride-containing materials used were tooth paste and mouth wash (colgate). specimens of ...

Hematopoiesis is fully dependent on hematopoietic stem cells (HSCs) that possess the capacity to self-renew and differentiate into all blood cell lineages. WASH, Wiskott-Aldrich syndrome protein (WASP) and SCAR homologue (WASH) is involved in endosomal sorting as an actin-nucleating protein. Here, we show that conditional WASH deletion in the hematopoietic system causes defective blood producti...

We present a leptogenesis mechanism based on the standard type-I seesaw model that successfully operates at right-handed-neutrino masses as low few 100 TeV. This mechanism, which we dub "wash-in leptogenesis", does not require any CP violation in neutrino sector and can be implemented even regime of strong wash-out. The key idea behind wash-in is to generalize freeze-out nonminimal cosmological...