The ability to mentally represent the movement of hidden objects (i.e., invisible displacement) is of theoretical importance due to its generally accepted status as an indicator of the development of a powerful type of representational capacity in human children. Over the past few decades, the understanding of invisible displacement has been claimed for a variety of animal species as well. Howe...

A colorimetric indicator displacement assay (IDA) amenable to high-throughput experimentation was developed determine the percentage of cis and trans alkenes. Using 96-well plates two steps are performed: a reaction plate for dihydroxylation alkenes followed by an IDA screening consisting boronic acid. The generates either erythro or threo vicinal diols from alkenes, depending upon their syn- a...