However, recent studies have shown that low- and middle-latitude regions may also be subject to problems due to GIC occurrences.
When built on weak subgrades, these roads are subject to problems like excessive rutting and mud-pumping, increasing maintenance costs and usually leading to periodic interruptions to traffic.
It is subject to problems common to the arc: an almost total lack of selectivity as to the chemical element ionized and, to a lesser extent, the production of ions with degrees of ionization greater than one.
Ecological studies are subject to problems of correlations between aggregated disease rates and aggregated measures of exposure which do not arise with studies which use individual data on disease, exposures and other risk factors.
In addition, the standard errors must be corrected using a Prais-Winsten estimation, as otherwise the models are subject to problems of specification.
Preload responsiveness parameters are not without their limitations: they require constant tidal volumes of around 7 to 8 ml/kg and sinus rhythm; they are subject to problems with damping of the arterial trace; and up until now they had limited validation in terms of improved clinical outcome.
As with any index created by summing multiple items into a composite measure, our index of well-being is subject to the problem of compensatability.
There may be concern regarding the use of different microarray platforms being subjected to heterogeneity problem.
"If we do the executions once or twice it is not a problem, but if we have to do it many times we will certainly be subject to psychological problems," he said.
