Do not quote without permission. Note: Potential references to other articles in the encyclopedia are indicated by {}. These should be checked against the actual contents of other articles before publication. B r a i n a r d 2 A b s t r a c t Color vision is the ability to distinguish and identify lights and objects on the basis of their spectral properties. This entry presents several topics t...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 1. Rationale for the Existence of a Neural Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 2. Evidence for Neural Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . ....

Background and Purpose: Three mainstream strategies exist to detect the responses of regional cerebral blood flow to functional activation. We tested the significance of changes in raw regional cerebral blood flow data, regional cerebral blood flow data normalized by division by global cerebral blood flow (dependent model of the regional-to-global cerebral blood flow relation), and regional cer...

engaging in breath-hold diving, a sharp increase in diving injuries has been seen in EDs (Box 133.2). Deaths from breath-hold diving alone have almost doubled in the last 5 years, thus illustrating the potential for injury associated with this form of diving. With acute DCI, rapid assessment and treatment are the foundation of management. Three keys to successful ED treatment are having a high ...

PATENTS ON THE TRADITIONAL MISSION of liberal arts education have expired. Generic versions of that mission are now regularly included in even the most specialized undergraduate curricula. In the marketplace, meanwhile, the undiluted liberal arts experience is battling the pressures of escalating costs, rising tuitions, and increasing demands for career training as a primary component of underg...

In this paper, we study the equation -Au = K ( x ) u 5 in R3 and provide a large class of positive functions K ( x ) for which we obtain infinitely many positive solutions which decay at infinity at the rate of Ix(-'.

Hershberger' raised the question of xvhether a multiplicit>. of resonances had been observed in radio reflections from meteor trails at frequencies near the plasma frequency similar to those observed from positive columns in the laboratory. Nolv that a theoretical description of the process leading to the laboratory observations is available2 one can determine whether such resonances...