For instance if δ 1 = 6 and δ 2 = 3 we have ρ ( A + B Δ ) = 0.96 < 1. Discrete-time positive systems are quite frequent in science and engineering.
In recent years, Mr. Adams had become a sought-after lecturer and frequent commentator on science and technology issues.
But taken out of that context it seems forced and frail, despite the frequent genuflection toward science.
Jim Al-Khalili, a professor of theoretical physics at the University of Surrey, is a frequent host of science programs on BBC television and radio.
Known for his engagement with aficionados of Star Trek, Nimoy made frequent appearances at science fiction conventions and was convinced by director J.J. Abrams to make an appearance in his 2009 Star Trek remake.
(Albert is also a frequent contributor to Science Careers).
I should pause briefly and discuss the age of the universe and the age of the earth, as these two facts about nature are also the subject of frequent attacks against science in schools.
The common theme in these studies is the implementation of a variety of active-learning approaches that include frequent practice of science-process skills inside and outside the classroom.
Surprisingly, she cites John Dewey as an important influence on her thinking, and she champions hands-on science labs, frequent field trips, and long stretches of time for independent reading.
Despite repeated stories of children who died after Christian Scientists denied them traditional medical care, and frequent descriptions of Christian Science as a cult of fanatics, the movement attracted the educated and well-to-do in increasing numbers.
