Ensuring that ROS levels remain in the non-toxic range is a continuous challenge for cancer cells Indeed, cancer cells are continually exposed to high levels of ROS produced by compromised aerobic metabolism, chemotherapeutics, nutrient deprivation, and host immune responses [5], [6], [7].
"Google will have continuous challenges to major initiatives around consumer choice, security and trust, privacy," said David Yoffie, a professor at the Harvard Business School.
Confusion and concern about basic safety issues for disabled drivers is a continuous challenge for the mobility industry, which is trying to promote quality standards after decades of improvisation.
Finding good teachers is a continuous challenge, she said, and she harbors plans for a junior-year-abroad program, so dance students from American colleges can come to her school and earn college credit.
Mr. Straus isn't in any particular danger at the moment, but this is one of those posts where defending the position — maintaining power against continuous challenges — is part of the job.
He describes the need to re-train the local workforce and attract new sources of employment as "a continuous challenge" in an area with a long tradition of young people leaving school early and going straight into jobs of a type that used to be on their own doorsteps but aren't any more.
Magazine, being an entrepreneur is a constant exercise in survival and sustaining enthusiasm through great tumult and massive, continuous challenges.
Getting to where it is didn't come easy, and staying there will remain a continuous challenge.
The emergence of surface mutants however is a continuous challenge to design more effective immunoassays.
Soil tillage interaction presents a continuous challenge for researchers, developers and manufacturers.
In biomedical computation, the continuous challenges are: management, analysis, and storage of the biomedical data.
