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.
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.
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 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.
In the first case, there exists control policy which makes arbitrary state of the system reach to zero in one time step.
The Tea Party is a Frankenstein movement — an odd collection of factions, loosely stitched together, where the head, to the extent that it exists, fails to control the body.
"It exists precisely because we cannot control all circumstances.
Though the rebels must pull back from the ceasefire line as defined last September, the Ukrainian forces have to pull back from the line of control as it exists today.
However, the mechanism of this control, if it exists, is unknown.
