Water, water everywhere and not a drop to drink.

Water, water, everywhere, nor any drop to drink.

Feed Up, Back, Forward // Douglas Fisher and Nancy Frey

Like the sailors in Samuel Coleridge's poem "The Rime of the Ancient Mariner" who see "water, water everywhere, nor any drop to drink," teachers often feel awash in a resource that is of little help. Teachers have more assessment data about individual students at their fingertips than we could have imagined a decade ago. Unlike saltwater to a thirsty mariner, the data are of course highly usabl...

Water, water everywhere but not a drop to drink?

Biofilms are emerging as an increasing problem as medical technology advances. Dental practice is no exception and interest in the role of biofilms within dental units as a possible source of cross-infection is intensifying. It is difficult to quantitate the risks associated with aerosolised bacteria for the majority of patients seen in general practice. However, it seems prudent to eliminate t...

A numerical investigation of γ-Al2O3-water nanofluids heat transfer and pressure drop in a shell and tube heat exchanger

The effect of γ-Al2O3 nanoparticles on heat transfer rate, baffle spacing and pressure drop in the shell side of small shell and tube heat exchangers was investigated numerically under turbulent regime. γ-Al2O3-water nanofluids and pure water were used in the shell side and the tube side of heat exchangers, respectively. Since the properties of γ-Al2O3-water nanofluids were variable, they were ...

Application of Gene Expression Programming to water dissolved oxygen concentration prediction

This research based on record and collected data from four stations at Eymir Lake, Turkey, which are monitored daily in seven months. Water quality monitoring using former methods are time-needed and expensive, while the application of gene expression programming is more understandable, rapid, and reliable which is used in this article to provide a prediction for dissolved oxygen. The concentra...