Weaknesses on both sides will be exposed during the frequent competition, the anger over a single incident could linger for months, and the more they see each other, the more tension is likely to rise.
The Convex layout gives the most frequent competition, while The Concave one leads to the least.
In Dr. MacLean's theory, all three systems remain in place and in frequent competition; indeed, their conflicts help explain extremes in human behavior.
Perhaps the most oft-repeated of those arguments is that horses aren't as robust as they used to be, not as physically resilient to the rigors of frequent competition as those hardy warhorses of yore.
Thus, on the leading edge of the expansion, western bluebirds experience frequent competition with their congener, but rarely with conspecifics.
In addition to Murray, Greg Lang (Lehigh University) and David Gresham (New York University) showed that whole-genome sequencing of evolving populations can reveal the sequential appearance of beneficial mutations, with frequent competition between interfering clones.
We've done some tweaking around the edges, like more frequent competitions so that people out there don't feel like they've missed out.
Ms. Erway, 27, has become a frequent advisor to competition neophytes.
And that's why Cindy Boyd, who is chief executive of the Houston-based consultancy Sentigy and a frequent judge at competitions hosted by Rice University and the Entrepreneurs' Organization, recommends that would-be entrants conduct extensive online research via the Web sites of the host organizations.
Also a possibility is Marius Brenciu, a Romanian tenor who just won the Singer of the World competition in Cardiff, Wales; Ms. Rosenberg, a frequent judge at vocal competitions, was on the jury.
He was a frequent winner on the competition circuit at an early age -- he is 29 -- and received the Jury Discretionary Award at the Van Cliburn Competition in 1993.
