To learn more, read the full column, "'Environment' Poses a Knotty Challenge in Autism," and then join the discussion below.
The Amazon Prime debate is exactly the sort of knotty challenge that the Arete education model uses as a teachable moment.
But its weight, both real and potential, has sharply increased in the last month, as American officials confront the knotty challenge of presiding over a process in which Iraqi leaders, under American direction, are trying to decide on a structure to replace Mr. Hussein's rule.
Research on a Zambian mini-grid by the Stockholm Environment Institute (SEI) reveals another, potentially knottier, challenge for electrification startups with big dreams.
Already, reading comprehension, with excerpts using an endless array of writing styles and topics, plus a bottomless list of potential vocabulary words, is a knottier challenge.
This fact can present some knotty epistemological challenges, as the University of Cambridge physicist Adrian Kent pointed out in an essay last year.
But even Mr. Bush's advisers say the president's prime-time speech poses knotty political challenges that go much deeper than how much he should calibrate between his drives to subdue the two demons threatening America: the Taliban and the recession.
Balancing lyrical themes and knotty structural challenges is a Law speciality, and he emphasised it from the off with an electronic loop that passed through an implacable, systems-music piano/drums repeat, and out into open spaces cruised through by Arcoleo's quiet yelps and terse phrasing, trimmed and steered by Goloubev's guiding interventions.
Among other things, the legislation, HR 5116, lays out several new initiatives to improve science and math education, describes operating procedures for DOE's new energy hubs and its Advanced Research Projects Agency-Energy, gives NSF the authority to offer prizes for knotty research challenges, and creates an Office of Innovation within the Department of Commerce.
The concept of a hackathon originated with computer software developers who found that giving themselves a discrete space of time to solve particularly knotty programming challenges could be an effective way of moving the best ideas to action quickly.
