WHICH SITE-SPECIFIC CHARACTERISTICS ESTIMATED FROM MICROTREMORS ARE USEFUL?

Comparison of Site Response Characteristics Inferred from Microtremors and Earthquake Shear Waves

We investigated the validity of seismic site response characteristics estimated from microtremors by comparing them with those of earthquake motions. For this purpose we observed microtremors as well as earthquake motions using large (5-km diameter) and small (0.5-km diameter) arrays deployed on soft sediments. Specifically, we examined four estimates from microtremors: relative site amplificat...

Traditional aging theories: which ones are useful?

Many theories have been proposed for answering two questions on aging: “Why do we age?” and “How do we age?” Among them, evolutionary theories are made for interpreting the evolutionary advantage of aging, and “saving resources for group benefit” is thought to be the purpose of aging. However for saving resources, a more economic strategy should be to make the individuals over reproduction age ...

Macrolide allergy: which tests are really useful?

Clarithromycin or azithromycin is not infrequently used as empiric treatment for upper respiratory tract infections. When patients develop a rash after several days of treatment, one is often faced with the diagnostic dilemma of whether this is a drug eruption or viral exanthema. Most times, if the temporal sequence is in keeping with a drug eruption, this patient will be peremptorily labelled ...

Benzodiazepine overdose: are specific antagonists useful.

Transient synovitis of the hip: which investigations are truly useful?

QUESTIONS UNDER STUDY/PRINCIPLES To assess the usefulness of several laboratory and radiological investigations for the limping child with suspected transient synovitis of the hip. METHODS The medical records of children admitted at our children's hospital for nontraumatic hip pain between 1999 and 2007 were retrospectively reviewed. During the study period, all children without a definite di...