Moreover, with a reduction in the frequency of applications, the possibility of selection of genotypes resistant to the frequent use of one or more active principles
is reduced (BRENT; HOLLOMON, 2007), which has been observed in successive crop years and, in many cases, leads to an increase in the number of sprays and active principles
used (GRIGOLETTI JUNIOR; SONEGO, 1993).
Currently, special attention has been given to neonicotinoids, as this class of insecticides has many active principles
and their risks to non-target organisms are little known.
Distribution of antidepressants consumed, according to the pharmacological class, active principle
Bioguided isolation of the active principles
Here, it is nearly impossible to choose methodologically; therefore pre-tests are required to give information about the appropriate active principle
Medicinal plants are providing an effective local aid to health care and disease free life and they contain physiologically active principles
that over the years have been exploited in traditional medicines for the treatment of various ailments.
The active principles
are procyanidins and flavonoids.
The fourth step was the discovery that the active principle
was maximally insoluble in 95 percent alcohol.
In traditional Chinese culture qi (Chi) "energy flow" is an active principle
forming part of any living thing.
Agrama emphasizes that the problem-space of secularism is firmly entrenched in Egypt, the active principle
of secularism is rooted in the legal notion of public order, whereas the public order is a basis for the state's legal power to define the essence of both Christianity and Islam in Egypt.
He stressed the need to ensure a better co-ordination between consulting physicians and pharmacists, reviewing, in the meantime, the right of substitution which provides the possibility to pharmacists to change a medical prescription by proposing another medicament which has the same active principle
This active principle
improves the mobility of children and the ability to sense their body's position.