Hollow-fibre modules have been assessed for their capability to reduce dissolved oxygen to the parts per billion (ppb or mug/kg) concentration range in ultrapure water production.

The room contained a lacery of wires and cables.

Histology sections were cut at 5–6 µm on a rotary microtome, mounted on glass slides, and stained with Harris’s haematoxylin and eosin in a Stainomatic specimen stainer.

The abundance of various acidobacterial subdivisions in unplanted soil and in the rhizospheres of potato (Solanum tuberosum ‘Agria’), leek (Allium porrum ‘Kenton’), and mixed grass species dominated by Lolium perenne were studied in a field experiment using real-time quantitative PCR by da Rocha et al.