The study has a high level of power; utilises an active control group; measures and evaluates demographic differences including ethnicity, religion, and gender for response to the intervention; attempts to improve consent rate by utilising an opt-out consent method; is delivered by the research team rather than by teachers from the individual schools and assessed for fidelity of implementation.
This paper provides a detailed examination of how the optimum synchrophase angles in a typical four-engine propeller aircraft vary with different altitudes and airspeeds, and how this information could lead to the design of new adaptive propeller synchrophasing systems and potentially yield improvements to other active noise control measures in propeller aircraft.
The control of total power gives the best results under ideal conditions but, for realistic cases, characterized by measurement errors and flanking paths, the cancellation of velocity or force is more effective than the active control of measured power.
Modern contraceptives have been shown to be active fertility control measure and for protection against sexually transmitted infections including HIV/AIDS [ 7].
Risk prediction models which can accurately quantify the probability of carriage with these organisms can assist in targeting active surveillance and control measures, thus increasing the cost-effectiveness of these interventions [ 40].
In summary, by using the CD69 lymphocyte-activation assay, we determined that employees working adjacent to a large construction project involving the excavation of previously undisturbed native desert soil and the use of active dust-control measures, compared with co-workers at another site 13 miles away, did not have an increased risk for acquisition of coccidioidomycosis.
62 Further, there is growing evidence that MBIs are superior to active control conditions on some measures of distress, including depressed mood, anxiety, and stress symptoms.
It is imperative therefore that continued active surveillance and infection control measures for variant Creutzfeldt Jakob disease are continued into the future.
When positive cases have been detected through active surveillance legislation requires control measures and further testing of animals in the associated flock [ 17] - flocks controlled in this way will be designated as "positive flocks" for the purposes of this paper.
