Whereas with the cyclic increased continuously, the efficiency decreased.
These cyclic increases in malaria continued until at least 1997 because of the El Niño Southern Oscillation (6 ).
Cyclic increases in intrathoracic pressure during positive pressure ventilation may reduce venous return and increase the afterload of the right ventricle [ 1, 2].
SNV has been present in North America for a long time (3, 11 ), and all evidence indicates that it will continue to show cyclic increases and decreases in rodent populations coincident with increases and decreases in rodent density (11 ).
However, because hepatitis A incidence shows cyclic increases and decreases, determining how much of the declines observed has resulted from vaccination is complicated [ 21]; besides, in population-based studies we don't have the benefit of a control community [ 7].
Indeed, the disease continues to be endemic in vaccinated populations in Europe, Australia, Canada, and the United States, with cyclic increases at 3- to 5-year intervals, despite high vaccination coverage (1, 2).
Above this threshold value, the undrained shear strength and cyclic resistance increase with increasing plasticity index of fines.
It is found that the settlement of the armor and core materials under cyclic loads increased with increasing base acceleration level.
The degree of cyclic softening increased with an increase in test temperature.
