The commonest form of cardiac valvular aneurysm is the thrombo-aneurysm of Ribbert (1924), which arises by perforation of an ulcer of the valve cusp into a hollow thrombotic mass and by organization undergoes fibrosis of varying degree. Reports of such aneurysms are not infrequent in the early reports of bacterial endocarditis, but aneurysms having well-organized, smooth, fibrous walls are rare...

and commercial kits (3). Future availability of promising ultra-sensitive tests (e.g., PCR and antigenic tests) may overcome the limitations associated with conventional microscopy and serologic testing for low-parasite load schistosomiasis. As stated in our manuscript, we cannot exclude the possibility that our case definition generated false-positives; the potential limitations of our finding...

BACKGROUND Patients with systemic lupus erythematosus (SLE) have increased cardiovascular morbidity and mortality. Although autopsy studies have documented that the heart is affected in most SLE patients, clinical manifestations occur in less than 10%. QT dispersion is a new parameter that can be used to assess homogeneity of cardiac repolarization and autonomic function. We compared the increa...

A group homomorphism η : A → H is called a localization of A if every homomorphism φ : A→ H can be ‘extended uniquely’ to a homomorphism Φ : H → H in the sense that Φη = φ. This categorical concept, obviously not depending on the notion of groups, extends classical localizations as known for rings and modules. Moreover this setting has interesting applications in homotopy theory, see the introd...

Although the term "Enterococcus" appeared in bacteriological literature as early as 1899 (Thiercelin26) this bacterial group has yet to assume the position merited by its occurrence and by its distinctive characteristics. The fault lies primarily in the failure of workers to cover all phases in the study of their strains and in an inability to correlate the results of different studies, rather ...

A group homomorphism η : A → H is called a localization of A if every homomorphism φ : A → H can be ‘extended uniquely’ to a homomorphism Φ : H → H in the sense that Φη = φ. This categorical concepts, obviously not depending on the notion of groups, extends classical localizations as known for rings and modules. Moreover this setting has interesting applications in homotopy theory, see the intr...