Publications by authors named "Valenza P"

The Ebola outbreak of 2014-2015 exacted a terrible toll on major countries of West Africa. Latest estimates from the World Health Organization indicate that over 11,000 lives were lost to the deadly virus since the first documented case was officially recorded. However, significant progress in the fight against Ebola was made thanks to a combination of globally-supported containment efforts, dissemination of key information to the public, the use of modern information technology resources to better track the spread of the outbreak, as well as more effective use of active surveillance, targeted travel restrictions, and quarantine procedures.

View Article and Find Full Text PDF

Our works shows that the americium pyrochlore (241)Am(2)Zr(2)O(7) undergoes a phase transition to a defect-fluorite structure along with an unusual volume contraction when subjected to internal radiation from alpha-emitting actinides. Disorder relaxation proceeds through the simultaneous formation of cation antisites and oxygen Frenkel pairs. X-ray absorption spectroscopy at the Am-L(II) and the Zr-K edges reveals that Am-O polyhedra show an increasing disorder with increasing exposure.

View Article and Find Full Text PDF

Within the framework of the scientific community, we could define virtual reality (VR) as an effective simulation of complex environmental aspects related to both interaction-dependent and high-risk operations, where mistakes will lead to unacceptable consequences. Surgeons performing open surgery, endoscopists working on the intestine or neurologists working on the brain-all are impressive examples where the VR approach looks potentially quite interesting. In fact the risk of unsatisfactory implementations, too poor with respect to the complexity of the real world, coming from the unsatisfactory performance of the present-day technology, is quite high.

View Article and Find Full Text PDF
Flatfoot overview.

Clin Podiatr Med Surg

July 1989

The pathologic condition pes planus has been noted in orthopedic and podiatric literature for a number of years. The many scientific and technical terms assigned to the condition have become synonymous, emerging in the vernacular as the common term "flatfoot." In the broadest sense, flatfoot refers to the weight-bearing or nonweight-bearing foot that exhibits collapse of the medial column.

View Article and Find Full Text PDF

In order to determine whether prolactin secretion was affected in diabetic pregnancy, maternal, fetal and amniotic fluid prolactin (PRL) concentrations were measured in gestational non treated diabetic women at parturition. Amniotic fluid PRL levels, though higher than those in maternal and fetal serum, were significantly lower than those of the controls (p less than 0.005); no case of respiratory distress syndrome or congenital malformation was found at birth.

View Article and Find Full Text PDF