Sentence examples for system has been challenged from inspiring English sources
The two-party system has been challenged before.
Over the years with maturity as well as help from programs like the TRUST and The Last Mile, my belief system has been challenged and as a direct result, my belief system has changed.
The proposed deal, reached with one of several Los Angeles residents who sued the city over the disastrous rollout of a new billing system, had been challenged by attorneys representing several other customers, who argued that the deal put too much control in the hands of the utility.
However, data emerging from urban systems has been challenging to integrate, organize and analyze due to their natural spatial, temporal and typological heterogeneity.
Recently, new areas of attention research have opened up as classic models dividing attention into top-down and bottom-up systems have been challenged.
Healthcare systems have been challenged to determine the medical supplies that should be procured.
In the laboratory, in the absence of knowledge of natural pathogens, these systems have been challenged with exotic ones, such as the agents of human disease.
Faced with increasing concerns about the likelihood of an influenza pandemic, healthcare systems have been challenged to determine what specific medical supplies that should be procured and stockpiled as a component of preparedness.
We have shown that both the honeybee Apis mellifera (Mallon et al. 2003 a ) and the bumble-bee Bombus terrestris (Riddell & Mallon 2006) perform poorly in proboscis extension reflex (PER) memory tests (Bitterman et al. 1983) when their immune systems have been challenged by lipopolysaccharide (LPS).
Previously, sensitivity and resolution of the single-photon emission computed tomography (SPECT) system have been challenges in small-animal imaging.
Its public health system, moreover, has been challenged by massive outbreaks of vaccine-preventable diseases, declining sanitation, and an inability to fund its healthcare system (6 – 8 ).
