However, these findings were only significant at the middle tertile of exposure and the strength of association weakened as exposure increased.
Scores of volunteers attempted to rescue the whales, but the animals, weakened by exposure, headed back to the beach.
The learning can be weakened by exposure to the tone in the absence of the shock, but much research shows that these extinguished responses resurface if the rat is returned to the box where the shock had occurred, or is subjected to other kinds of stress.
Measles is one of the greatest threats to child survival in emergency situations, especially when their immune systems have been weakened by exposure and malnutrition.
All personnel working in the polio eradication campaign are trained to examine the VVM and discard any vaccine that might be weakened from exposure to heat.
Exposure weakened the resolve of less nationalist students and strengthened that of the more rightwing, nationalist students.
Meanwhile, with the enhancement of chloride concentrations, the corrosion rates generally increased but the accelerating effect weakened as the exposure time prolonged.
Such mudflows occur when ice and snow atop a volcano melt during an eruption and the water combines with volcanic rock weakened by long exposure to heat and water.
Though abstract on the surface, the changes will provide more flexibility to bail out or further restructure Greek debt, to aid Italy and Spain with their bond sales and even to recapitalize some European banks, weakened by their exposure to sovereign debt in the form of Greek, Portuguese, Spanish and Italian bonds.
But for banks that have been weakened from their exposure to dubious European debt, raising money from private investors will be difficult — especially as many of the likely sovereign fund candidates are the ones that suffered deep losses from investing in troubled American banks in 2007 and 2008.
But aggregation may simultaneously weaken covariate-exposure and/or covariate-outcome relations, reducing prioritization in the Bross formula [ 19].
