But some doctors say that until those specific genetic factors are known, race can be a convenient classification because people of the same race tend to share certain genetic characteristics.
These different types of schizophrenia are not mutually exclusive, and schizophrenics may display a mixture of symptoms that defy convenient classification.
Another convenient classification of weak electrostatic interactions is based on the electronic energy densities, introduced by Espinosa et al. [35], who extended the idea by Cremer and Kraka.
The simple and convenient classification of damage by sources, which includes chemical attack, fire, overloading by static and dynamic (impact and earthquakes) loads, and, finally, malicious damage, is suggested for the practicing engineer.
If the key sexual risk factors in advanced epidemics are similar to those in newer (recent) ones, then this concept is relevant only as a convenient classification of HIV prevalence levels, but otherwise lacks any relevance with respect to underlying epidemiological processes.
A convenient classification of controlled-release systems is based on the mechanism that controls the release of the substance in question.
For the purpose of this Review, and in the absence of enough data for the less usual SORs, we focus only on the 1Fe- and 2Fe-SORs, a quite convenient classification to highlight the properties known for these enzymes.
25 Indeed, as one doctor noted, '[i]t was common to hear a medical man say: "I was not sure whether it was still-born or dead" '. 26 There was a more significant concern that some stillbirths were in fact cases of infanticide, and the 'stillbirth' label merely a convenient classification to avoid suspicion.
A division of masnawis into categories of heroic, romantic, and didactic provides a convenient but rough classification.
The proposed method could be used as an alternative or aiding technique for rough and convenient sleep stages classification.
