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Normally it returns t. If position is out of view only because window has been scrolled horizontally , pos-visible-in-window-p returns t. See section Horizontal Scrolling . The new bedside test measures the presence in the blood of a constituent of the heart muscle - Troponin T. While the introduction of TS prophylaxis may not be very effective , the greater concern is the potential for harm if the prevalence of SP - resistant malaria in the region were to increase as an unintended result . Thirty-two senior ranking first class cadets and midshipmen took a look at their leadership abilities last week during the 24th annual Robert T. Stevens Service Academies Leaders Conference at the Jewish Chapel here . Secretary has received an application therefor from the State transportation department , and unless an emergency has been declared by the Governor of the State and concurred in by the Secretary , except that if the President has declared such emergency to be a major disaster for the purposes of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C . A further concern is that widespread use of TS will produce cross-resistance to one of the only affordable drugs left to treat malaria in the region , sulfadoxine-pyrimethamine ( SP ) . Since most of the pathogens isolated were resistant to TS , the authors question the efficacy of TS as prophylaxis in the region .