Kessler adds heat to smoking debate

Variation Adds to Prosodic Typology

Variation has not been a major concern of prosodic typologists. Frequently, it is treated as noise in the data and held to conceal what is really important about the prosodic structure of the language. Consequently, most investigations are restricted to a single standard variety and cross-speaker variation is ignored or masked by statistical processing. The results are often assumed to be repre...

MR imaging adds weight to sacroiliitis diagnosis

Early diagnosis of rheumatoid arthritis and monitoring of the disease during therapy have attracted considerable interest over the past decade. Imaging studies of seronegative spondyloarthropathies, however, are few and far between, even though these disorders occur as frequently as rheumatoid arthritis. Now the potential promise of biological therapy to treat ankylosing spondylitis, one of the...

Good health adds life to years.

MRI adds precision to liver radiofrequency ablation

Radiofrequency ablation has attracted increasing attention as a minimally invasive method of treating hepatic malignancies.1 Image guidance can play an important role in enhancing the safety and effectiveness of ablative therapy. Imaging should ensure that ablation is precise, enabling complete coagulation of tumor tissue within a safety margin. The applicator should be positioned and energy de...

IBM Adds “ Nothing ” to Chips , Improves Performance

I BM researchers have developed a technique that creates vacuum spaces, called airgaps, between the wires in processors using selfassembling technology. These airgaps create a form of insulation that increases the chips’ performance up to 35 percent or reduces their power consumption up to 15 percent. This is the “first demonstration of a viable airgap technology on a real chip,” said project m...