High-quality Development of Selenium-enriched Industry in Guangxi Driven by Scientific and Technological Innovation

As the largest natural selenium-enriched soil area in China, Guangxi has achieved a leapfrog development in its selenium-enriched industry through the implementation of major scientific and technological projects driven by selenium-enriched innovation. The selenium-enriched industry has also become a new force in the poverty alleviation industry in Guangxi, making remarkable achievements. While summarizing and sorting out the effective measures and effects of scientific and technological innovation driving the development of selenium-enriched industry, the present paper analyzed some shortcomings and problems in the high-quality development of the selenium-enriched industry driven by the scientific and technological innovation. Finally, in view of the problems, it came up with pertinent recommendations and countermeasures, to better promote high-quality development of the selenium-enriched industry and boost the rural revitalization

Determination of the number of ψ(3686)\psi(3686) events at BESIII

The numbers of ψ(3686) events accumulated by the BESIII detector for the data taken during 2009 and 2012 are determined to be and , respectively, by counting inclusive hadronic events, where the uncertainties are systematic and the statistical uncertainties are negligible. The number of events for the sample taken in 2009 is consistent with that of the previous measurement. The total number of ψ(3686) events for the two data taking periods is