morning of the 13th July 1871) with urgent symptoms of strangulated hernia of the right side. He stated that he had been subject to hydrocele of the right side for the past 25 years, and that lie had been tapped for it on several occasions, at variable intervals, but he did not remember noticing a hernial tumour there, until the last time he was tapped, some twenty days ago, when, aft< r the op...

to represent the positive semi-definiteness condition X 0 in the SDP. The proof of the above representation of the minimum eigenvalue can be obtained by first showing that we can without loss of generality assume that A is diagonal, and noticing that we can then restrict Y to be diagonal as well. Note that the above representation proves that λmin is concave, so problem (11.2) is indeed convex ...

Mycobacterium arosiense is a newly described species. After noticing it was misidentified as Mycobacterium intracellulare by the commercial identification system GenoType CM (Hein, Nehren, Germany), we detected 4 such strains among 33 that were previously misidentified as M. intracellulare. Three more strains were found among unidentified mycobacteria not tested previously with GenoType. The fi...

Elevated IgE levels can be associated with a variety of causes. The diagnosis is most often made on a clinical basis taking into consideration a complete history and physical. In this case report we describe a patient with elevated IgE levels and our discovery upon further investigation after noticing some unique findings on his physical examination. The differential diagnosis of extremely elev...