A trial fibrillation (AF) is the most common cardiac arrhythmia. The preferred therapy for AF is sustained sinus rhythm control; however, the efficacy of currently used antiarrythmic drugs is limited by adverse side effects resulting from both a lack of ion channel selectivity and nonspecific ventricular activity. The role of the voltage-gated potassium channels in atrial myocyte repolarization...

It is now more than 50 years since, in 1927, Sydney Campbell Dyke banded together the growing number of pathologists to form the British Pathologists' Association, which later became known as The Association of Clinical Pathologists. Dyke had a wide-ranging interest in medicine, unlike some of his successors, who have relinquished their clinical affiliations and have retired to the confines of ...

Introduction The narrow-leaved cattail wetland (Hopfensperger and Engelhardt 2007) known as Dyke Marsh formally became a land holding of George Washington Memorial Parkway (GWMP, a unit of the national park system) in 1959, along with a congressional directive to honor a newly-let 30-year commercial sand and gravel dredge-mining lease at the site (Litwin et al. 2013; Figure 1). Dredging continu...

Ignimbrites within calderas host intrusions with hazardous and/or economically significant hydrothermal systems. The Hvítserkur ignimbrite at Breiðuvík caldera, north-eastern Iceland, is intruded by basaltic dykes. Our data show that the immediately adjacent to dyke hard, dark-coloured, recrystallised quartz, plagioclase, and alkali feldspar a low permeability porosity frequent macrofractures. ...

This paper responds to the research note in this issue by Van Dyke et aL concerning the use of SERVQUAL, an instrument to measure 1Robert Zmud was the accepting senior editor for this paper.