Is environmental memory, if it exists, controlled or incidental: evolutionarily advantageous, deleterious, or neutral?
Because no licensed vaccine exists, controlling or preventing dengue outbreaks is the only alternative, which is implemented by reducing its primary vector through monitoring and habitat control programs.
Among other questions, it asks whether a relationship between family income and the outcome exists, controlling for the effects of the proportion of families in poverty in the state.
As long as human culture has existed, control has meant some kind of power over the environment.
As is shown, there exist controls resulting in unbiased zero-variance estimators.
In contrast, when standard therapy does exist, controlling for placebo raises not only ethical but also practical issues, in that the usefulness of the results is ambiguous.
Although positive outcomes for mental health and well-being do exist, controlled evaluations of community-based obesity prevention interventions have not often included mental health measures (n=7).
It can therefore be postulated that in the host plant, multiple resistance genes may exist, controlling resistance in a quantitative manner, as has been shown in potato, though this remains to be formally demonstrated.
In conclusion, studies in animals showed that two major balancing descending systems exist, controlling stretch reflex activity: the inhibitory dorsal reticulospinal tract on one hand and the facilitatory medial reticulospinal and vestibulospinal tract on the other.
The safety board also found that no comprehensive, federal standard exists to control the risk of dust explosions in general industry, only in grain-handling facilities.
