The first wave of the 2019 novel coronavirus (COVID-19) epidemic in China showed there was a lag between the reduction in human mobility and the decline in COVID-19 transmission and this lag was different in cities.A prolonged lag would cause public panic and reflect the inefficiency of control measures.This study aims to quantify this time-lag eff
Abstract Background The biosynthesis of aflatoxin (AF) involves over 20 enzymatic reactions in a complex polyketide pathway that converts acetate and malonate to the intermediates sterigmatocystin (ST) and O-methylsterigmatocystin (OMST), the respective penultimate and ultimate precursors of AF.Although these precursors are chemically and structura
A research about validation method of read more Fe analysis in activated Methyl Diethanol Amine (aMDEA) using X-Ray Fluurescence (XRF) has been done.Analysis of Fe ion in aMDEA was performed to find out the rising of Fe in aMDEA that will show corrosion or metal erosion is caused by aMDEA degradation and contamination or accumulation from heat stab
Satellite altimetry and gravimetry show that the Greenland ice sheet has been losing volume and mass since the beginning of this century.However, from these short time series of direct measurements we cannot infer what the causes of the mass loss are, i.e.ice dynamics or surface processes, or that maybe the ice sheet gtech brush bar returns to norm