Helicopters and Jungle Rescue

To the rescue: optimally locating trauma hospitals and helicopters.

Injury (trauma) is the leading cause of death in the United States for people younger than 45 years of age. Each day, more than 170,000 men, women, and children are injured severely enough to seek medical care. About 400 of these people will die and another 200 will sustain a long-term disability as a result of their injuries. An estimated 20-40% of trauma-related deaths could be prevented if a...

Jungle Days

Jungle delights

Twelve scientists from Indonesia, Australia and the US recently returned from a two-week trek through the Foja Mountains in the Indonesian west of New Guinea. Their finds have yet to be evaluated and officially classified by experts around the world, but a preliminary count of new species includes one bird, four butterflies, five palms, one flower, four or five mammals, and 20 frogs — close to ...

Jungle Evaluation

Jungle evaluation is proposed as a new graph rewriting approach to the evaluation of functional expressions and, in particular, of algebraically specified operations. Jungles being intuitively forests of coalesced trees with shared substructures are certain acyclic hypergraphs (or equivalently, bipartite graphs) the nodes and edges of which are labeled with the sorts and operation symbols of a ...

Equilibrium in the Jungle Equilibrium in the Jungle *

In the jungle, power and coercion govern the exchange of resources. We study a simple, stylized model of the jungle that mirrors an exchange economy. We define the notion of jungle equilibrium and demonstrate that a number of standard results of competitive markets hold in the jungle. JEL Classification: C7, D4, S477, B201