PURPOSE Despite standardized curricula and mandated accreditation, concern exists regarding the variability and imprecision of medical student evaluation. The authors set out to perform a complete review of clerkship evaluation in U.S. medical schools. METHOD Clerkship evaluation data were obtained from all Association of American Medical Colleges-affiliated medical schools reporting enrollme...

Poor histological differentiation is currently considered among the adverse histopathological factors associated with unfavourable clinical course of colorectal carcinoma (CRC). At present, the histological grade of CRC is assessed based on the percentage of glandular differentiation in the tumor according to the World Health Organization (WHO) criteria. However the prognostic value of the WHO ...

BACKGROUND Susceptibility weighted imaging (SWI) is a velocity compensated, high-resolution three-dimensional (3D) spoiled gradient-echo sequence that uses magnitude and filtered-phase data. SWI seems to be a valuable tool for non-invasive evaluation of central nervous system gliomas. Relative cerebral blood volume (rCBV) ratio is one of the best noninvasive methods for glioma grading. Degree o...

OBJECTIVE Osteoarthritis (OA) has often regarded as a disease of articular cartilage only. New evidence has shifted the paradigm towards a system biology approach, where also the surrounding tissue, especially bone is studied more vigorously. However, the histological features of subchondral bone are only poorly characterized in current histological grading scales of OA. The aim of this study i...

This list is a short overview of some of my results. One can nd a more detailed description in my Research Statement or at 1. Simple associative algebras with nite Z-grading. Here, R is a simple algebra with a nite Z-grading over a commutative ring. A description of all such algebras was given 18]. As a corollary, it was proved that every (not necessarily nite dimensional) simple Lie algebra of...

In a prospective study, 10 patients with well-documented osteoarthritis (O.A.) of the hips were imaged using spin-echo pulse sequences (TR = 0.5 to 1.5 s and TE = 28 to 60 ms). After analyzing the changes observed, an MR grading system for assessing severity of O.A. in the hips was developed. Using this grading system and an established grading system for osteoarthritis using roentgenograms (bo...