Starting Strong VI

Starting Strong II: Early Childhood Education and Care

Reduction of Trace Quantities of Chromium(VI) by Strong Acids

O comportamento químico de Cr(VI) a baixas concentrações (10 to 10 mol L) em vários ácidos fortes foi estudado utilizando-se Cr(VI) de alta atividade específica como marcador. A especiação dos produtos destes sistemas foi realizada por cromatografia de troca iônica com eluição em etapas. Os resultados mostram que traços de Cr(VI), monitorados por radiocromo (Cr), são reduzidos na presença de ác...

Toward the Starting Line: A Systems Engineering Approach to Strong AI

Artificial General Intelligence (AGI) or Strong AI aims to create machines with human-like or human-level intelligence, which is still a very ambitious goal when compared to the existing computing and AI systems. After many hype cycles and lessons from AI history, it is clear that a big conceptual leap is needed for crossing the starting line to kick-start mainstream AGI research. This position...

Starting School

The head mistress of a Secondary Modern School for girls had the good idea of organising a school party each year at the end of the summer term, the guests to be the pupils about to move up to ^e Senior school and the leavers to act as hostesses. It is difficult to tell which group derives the greater benefit, the 15-year-olds proudly showing the "little ones" around and enjoying their own uttp...

Screen-printed electrodes for electroanalytical sensing of chromium VI in strong acid media

Simple, low-cost and acid-resistant carbon-based screen-printed electrodes (SPEs) addressed to detection of hexavalent chromium species, Cr(VI), in sulfuric acid at pH about 1, were prepared and characterized. Working and counter electrodes were prepared jointly on the same substrate in a single strip (working-counter electrodes pair). The batch printing process allowed obtaining many working-c...