If reliable assessments can be developed, sample testing may be introduced in all universities to measure teaching quality and discourage academics from letting bright undergraduates 'coast' through without being challenged.

As has been seen in the large scale recalls of 2007, sample testing can miss non-conforming product.

The remainder of the data are reserved for out of sample testing.

These efforts include litter removal, water sample testing, and educational programs.

You spit into a test tube, or swab the inside of your cheek, then send your sample off.

Companies offering the service here get around the law by working as brokers and sending the sample abroad.

The pack contains swabs to take cells from the inner cheek, and sterilised envelopes to send the samples to a lab.

I sent some sample chapters and a covering letter to 100 of them.

People using the kits swab themselves and send the samples away to be processed in a lab.

For example, on occasions, we'll request a stool sample.

Those over 60 will be posted a testing kit every two years, which involves giving a stool sample.

So everywhere he goes he takes a stool sample.

Most common are studies of proglottids passed in stool samples of infected hosts.

Over the first 2-3 week period, the subject's stool samples and symptoms were recorded.

Under-18s accounted for less than two per cent of the study sample and under-fives accounted for just 0.8 per cent.

The ability to study samples at lower concentrations also has been put to use in the study of natural products.

Nevertheless, he must have spent more time studying samples of ancient calligraphy and painting than producing pictures of his own.

Panel studies sample a cross-section, and survey it at (usually regular) intervals.

Doctors were finally persuaded to operate when a tissue sample taken from the gland showed up microscopic malignant changes.

A tissue sample for histology and cultures can also be collected and tested.

However, because the coccidioides create a mass that can mimic a lung tumor, the correct diagnosis may require a tissue sample (biopsy).

Most modern specimens also include a tissue sample preserved for genetic study.

These are not precise descriptions of gingival enlargement because these terms are strictly histologic diagnoses, and such diagnoses require microscopic analysis of a tissue sample.