Policy Internal Constraints John McWhorter, author of the controversial Losing the Race, on what's really holding African Americans back. Cathy Young and Mike Lynch | From the October 2001 issue Add ...

This is a preview. Log in through your library . Abstract By reexamining the structure of political attitudes among Americans in the period 1956-72, using both the items and coding scheme as given in ...

Photo by xploitme via Flickr (CC BY-SA 2.0) Do constraints hinder or help creativity? As with most aspects of creative thinking, the answer is a complex yes. For decades after Alex Osborn popularized ...

You and your friend both have a sweet tooth but you eat more sweets than they do. Why? Maybe your sweet tooth is bigger or maybe you’re just better at justifying eating more sweets. Or maybe you’re ...

This is a preview. Log in through your library . Abstract We study the internal constraints on the state quantities and on their velocities. We show that they can be taken into account by the free ...