They're designed to keep sales humming by rewarding consumers with specific discounts earned only when they buy from that particular provider, a variation that goes beyond a standard reward like airline miles.
In particular, a smooth variation of a pattern along a block may indicate a time course or trend, for instance metabolite concentration under temporal development.
If you are frequently asked to repeat a particular trick, practice a variation so you can "repeat" it and then surprise them with a completely different ending.
Cambridge's test looks for a particular variation, called an alternans, in the voltage of the T-wave, a coronary electrical signal so minute it does not show up on a standard electrocardiogram.
In an advisory it is expected to issue Thursday, the agency says that patients with a particular variation in an immune system gene should not be given the drug abacavir because they are at a far higher risk of a severe allergic reaction to the drug.
But critics say such regulation does not assure that tests are "clinically valid" — that having a particular genetic variation actually means a person has a disease or is at risk for one.
They then scanned the genomes of patients with common diseases to look for statistical links between having a disease and having a particular variation.
Instead, it looks as if early in the dog's history — about 15,000 years ago — humans captured through breeding a particular variation in the code for a single gene that produced small dogs that retained essential dog behaviors and characteristics.
Zhuāngzi is a central authority regarding eremitism, a particular variation of monasticism sacrificing social aspects for religious aspects of life.
