introduction: antibiotics have the potential to adversely affect the microbial community. for anaerobic digestion, a sufficient methanogenic population needs to be preserved in the system. the main aim of this study was determination of inhibitory concentration of oxytetracycline on methanogenic bacteria. methods: a 120 ml jacketed bioreactor with a 90 ml working volume was inoculated granular ...

The novel coronavirus disease (COVID-19) has become a public health problem at global scale because of its high infection and mortality rate. It affected most countries in the world, number confirmed cases death toll is still growing rapidly. Susceptibility studies have been conducted specific countries, where COVID-19 rates were highly related to demographics air pollution, especially PM2.5, b...

BACKGROUND This report presents urinary iodine (UI) concentrations for the general U.S. population during 2005-2006 and 2007-2008. These findings are the fourth and fifth assessments of the population since National Health and Nutrition Examination Survey (NHANES) III (1988-1994), when the median UI concentration for the population decreased from NHANES I (1971-1974). METHODS During 2005-2006...