Poor Dr. Ursus!

The Polar Bear — Ursus maritimus

Genetic relationships of extant brown bears (Ursus arctos) and polar bears (Ursus maritimus).

Polar bears (Ursus maritimus) and brown bears (Ursus arctos) are closely related species for which extensive mitochondrial and nuclear phylogenetic comparisons have been made. We used previously published genotype data for 8 microsatellite DNA loci from 930 brown bears in 19 populations and 473 polar bears in 16 populations to compare the population genetic relationships of extant populations o...

Dr Google or Dr Lazy?

Sir, I was recently on call for nephrology, and something happened. I was rung by a first year junior doctor at 1 am, saying that a patient's 'MEWS score was 6'. The patient had had a renal transplant that day. A score of 6 is very high. It should trigger a rapid senior review, and possible intensive care re-ferral. Modified early warning score (MEWS) is an electronic early warning score based ...

PATHOLOGY OF THE CARDIOVASCULAR SYSTEM Dr: Khitam Dr: Sazan Dr: Kifah Dr amear

BLOOD VESSEL DISEASES Blood vessels have a primary function of nourishing various organs and tissues of the body by supplying them with blood. Vascular diseases are manifested clinically through three mechanisms that are reflected through the diseased vessel (s) as 1. Progressive narrowing of the lumen associated with progressive ischemia of the relevant tissues. 2. Thrombosis associated with p...

Dr. Wallace and Dr. Stone reply.