This was again demonstrated in Norman Maier's 1931 experiment, which challenged participants to solve a problem by using a household object (pliers) in an unconventional manner.

Excel includes online events both technical and non-technical in nature to challenge participants throughout the country.

Organizers of the conference said the deliberate spread of anthrax in the United States was the most complicated investigation in the history of the disease centers, and they challenged participants to think of research projects to answer questions like these: *What is the minimum number of spores that can infect a human?

In my first post, I challenged participants to define entrepreneurship and identify which policies best create a supportive environment for entrepreneurship at the national, regional, and local levels.

The contest challenged participants to make improvements on the cardboard boxes homeless people frequently occupy.

At the opening session, on Tuesday, Barber B. Conable Jr., president of the World Bank, challenged participants to "reduce by half the number of women who die in pregnancy or childbirth by the year 2000."

With an edgy impatience behind his folksy demeanor, President Clinton struggled today to strike some sparks in his "national conversation" on race, challenging participants in a televised "town hall" meeting here to defend their views of affirmative action and to propose specific steps to bring the races together.

Finally, the leaders of the March challenged participants and their families at home to "expand [our] commitment to responsibility in personal conduct.

Olsen felt that our modern lifestyle had dulled our ability to adapt to harsh conditions, and created a wilderness program to challenge participants both mentally and physically.

Mr. Annan made many of the same points in a parallel message to the Pôrto Alegre gathering, though there he challenged participants to "show that you are ready to work in partnerships for change, rather than remain aloof through the politics of confrontation."