www.aafp.org/afp AMERICAN FAMILY PHYSICIAN 461 Renin-Angiotensin System The renin-angiotensin system is systemically and locally driven. The systemic process is triggered by the kidney’s response to decreased effective blood volume and begins with the secretion of renin from the renal cortex. Once released, renin cleaves angiotensinogen to form angiotensin I. This product, in turn, is catalyzed...

Why DOC? Cervical spondylosis is unique to the cervical spine because of the anatomy and presence of the uncovertebral joints and spinal cord. This is often manifest over several segments with mass effect on the ventral thecal sac and cord from ventral disease (DOC) and posterior ligamentous hypertrophy. On MR imaging, we are often faced with a low-signal, posterior extension of the disc margin...

This paper investigates using prosodic information in the form of ToBI break indexes for parsing spontaneous speech. We revisit two previously studied approaches, one that hurt parsing performance and one that achieved minor improvements, and propose a new method that aims to better integrate prosodic breaks into parsing. Although these approaches can improve the performance of basic probabilis...

Two recent measures incorporate the notion of statistical significance in basic PMI formulation. In some tasks, we find that the new measures perform worse than the PMI. Our analysis shows that while the basic ideas in incorporating statistical significance in PMI are reasonable, they have been applied slightly inappropriately. By fixing this, we get new measures that improve performance over n...

background : inappropriate use of vancomycin not only increase health care costs but also contribute to the emergence of resistant organisms. higher trough serum vancomycin concentrations (>10mg/l) has been recommended for avoidance of development of resistance. we aim to compare the administered dose with recommended doses based on guideline-recommended weight-based dosing. methods : in a cros...