An old new idea

OFDM: An Old Idea Solves New Problems

The multicarrier technique is known since more than 40 years. First practical applications, however, were not considered before 1990 when Bingham’s famous paper appeared which pointed out the great attraction of this idea – especially in the form of the FFT-based ”OFDM” (Orthogonal Frequency Division Multiplexing). Meanwhile, OFDM is applied in the DAB and DVB standard (Digital Audio/Video Broa...

A New Look at an Old Idea

Traditionally, most cases of hypertension in children and adolescents have been attributed to secondary causes, with renal and cardiac disorders being the most common, at least in preadolescent children. However, most hypertensive adolescents have no identifiable underlying cause for their hypertension, perhaps with the exception of obese adolescents, in whom the hypertension is likely attribut...

An old idea for a new age.

To purchase electronic or print reprints, contact The InnoVision Group, 101 Columbia, Aliso Viejo, CA 92656. Phone, (800) 809-2273 or (949) 362-2050 (ext 532); fax, (949) 362-2049; e-mail, [email protected]. By Kathleen Dracup, RN, DNSc, and Christopher W. Bryan-Brown, MD. From the School of Nursing, University of California, San Francisco, San Francisco, Calif (KD) and the Department of Anesth...

Acidosis: An Old Idea Validated by New Research.

The idea that “being too acid” contributes to disease susceptibility, especially cancer, has been around for a long time in the natural/integrative medicine world. This concept was easily discounted by conventional medicine as measuring blood pH on various types of diets showed no change. Up until about 10 years ago, no research existed to counter this skepticism. However, since then, a growing...

Symbol Grounding: A New Look At An Old Idea