been described in the hiterature,’ this is the first case in which this usually innocuous pleural mass has produced significant morbidity and contributed to a patient’s death. The special features ofthis case include the demonstration of local extrinsic compression of the airway seen on bronchoscopy, postobstructive pneumonia in the occluded segments, and local pulmonary artery thrombosis in th...

We investigate distribution of integral well-rounded lattices in the plane, producing a complete parameterization of the set of their similarity classes by solutions of the family of Pell-type Diophantine equations of the form x2 +Dy2 = z2 where D > 0 is squarefree. We then apply our results to the study of the greatest minimal norm and the highest signal-to-noise ratio on the set of such latti...

Four new species of Criconematoidea are described from Hoste Island, Chile. Criconema certesi n. sp. is distinguished by the fine, spine-like, cuticular extensions on body annuli; projection of annuli into rows of scales on posterior part of body; single, smooth, labial annulus set off by short collar from second (first body) annulus which is about same diameter as first (labial) annulus. Male ...

Abstract—Rockfills are widely used in civil engineering, such as dams, railways, and airport foundations in mountain areas. A significant long-term post-construction settlement may affect the serviceability or even the safety of rockfill infrastructures. The creep behavior of rockfills is influenced by a number of factors, such as particle size, strength and shape, water condition and stress le...

To identify genes involved in vascular patterning in Arabidopsis (Arabidopsis thaliana), we screened for abnormal venation patterns in a large collection of leaf shape mutants isolated in our laboratory. The rotunda1-1 (ron1-1) mutant, initially isolated because of its rounded leaves, exhibited an open venation pattern, which resulted from an increased number of free-ending veins. We positional...