Estimating the size of hard-to-reach populations is an important problem for many fields. The network scale-up method (NSUM) a relatively new approach to estimate these by asking respondents question, “How X’s do you know,” where X population interest (e.g., female sex workers know?”). answers questions form aggregated relational data (ARD). NSUM has been used variety subpopulations, including ...

Abstract In recent times there has been a great deal of interest in the conversion carbon dioxide into more useful chemical compounds. On other hand, translation these developments electrochemical reduction from laboratory bench to practical scale remains an underexplored topic. Here we examine some major challenges, demonstrating promising strategies towards such scale-up, including increased ...