On African Symbolic Messages.

Limits on Interstellar Messages

Performance of South African children on the Communication and Symbolic Behavior Scales-Developmental Profile (CSBS DP).

BACKGROUND Substantial development in social communication skills occurs in the first two years of life. Growth should be evident in sharing emotion and eye gaze; rate of communication, communicating for a variety of functions; using gestures, sounds and words; understanding language, and using functional and pretend actions with objects in play. A delay in these early social communication skil...

Visitor Compliance With Fire Restrictions: An Observational Study Using Verbal Messages and Symbolic Signage

The purpose of this study was to examine the effects of message type and source on visitor compliance with fire restrictions at the Applewhite Picnic Area, Cajon Ranger District, San Bernardino National Forest, California. Six treatments were administered during summer 2005 involving verbal messages (awareness of consequences and altruistic messages) and signage for primarily Hispanic recreatio...

Symbolic Representation of Securities Trade Settlement Messages Applying the Principles of Formal Languages for Business Communication

On Symbolic Jacobian Accumulation

Abstract: Derivatives are essential ingredients of a wide range of numerical algorithms. We focus on the accumulation of Jacobian matrices by Gaussian elimination on a sparse implementation of the extended Jacobian. A symbolic algorithm is proposed to determine the fill-in. Its runtime undercuts that of the original accumulation algorithm by a factor of ten. On the given computer architecture w...