Theorists have worked to understand these response patterns by constructing mathematical models of neurons and neural networks, which can be simulated using computers.
Since being elected governor two years ago, he has worked hard to construct an image as a roll-up-the-sleeves new Democrat and has shrewdly avoided steps that would permit Republicans to brand him a liberal, much like the tactic President Clinton employed.
Obama's campaign has worked steadily to construct an image of an insensitive and patrician Romney even before he wins the Republican nomination, hoping to create a caricature that sticks with voters once the election officially becomes a two-man race.
Somehow, I think, we have defeated nature, overcoming with surprising ease the distances geology has worked so hard to construct.
Barry Bonds has worked for years to construct his reputation as the surly superstar, a man who cares so little about public opinion that he could barely face a television camera without sneering.
Meanwhile, writers have steeled themselves to greet reviews of their books with gratitude for the praise, if there is any, and the resolve not to mind terribly if the plot twists they've worked so hard to construct are already known to potential readers, who now may feel understandably less inclined to pick up the novel.
Ferguson only lasted so long because he was in situ before the Glazers arrived and thenceforth reluctant to surrender what he had worked so hard to construct just because some new owners had found a way to bleed money out of it.
He'd like the book to be an extension of how Pentametron itself has worked: "The way Pentametron is artificially constructed, I thought it would be fun to mail it to one of the PDF mail-in places, where the process is as automated as possible".
There has been extensive work to construct an optimal neural network for controlling a mobile robot by evolutionary approaches such as genetic algorithm, genetic programming, and so on.
But Power had worked hard to contrive the Kilfane waterfall, constructing a mile-long conduit to carry a stream to the top of the rockface in front of the little cottage.
