The electrical resistances of the transcellular and paracellular pathways across the toad urinary bladder epithelium (a typical "tight" sodium-transporting epithelium) were determined by two independent sets of electrophysiological measurements: (a) the measurement of the total transepithelial resistance, the ratio of resistance of the apical to the basal cell membrane, and cable analysis of th...

The market turbulence that began in July 2007 stemmed initially from credit prospects deteriorating in U.S. subprime mortgages, but quickly spread to other markets. Growing uncertainty surrounding the valuation of structured credit instruments affected their liquidity, leading to difficulties in the asset-backed commercial paper (ABCP) market, where these instruments were partly funded. Illiqui...

This paper explores the impact of investor flows and financial market conditions on returns in crude-oil futures markets. I argue that informational frictions and the associated speculative activity may induce prices to drift away from “fundamental” values, and may result in booms and busts in prices. Particular attention is given to the interplay between imperfect information about real econom...

KRIEBEL, MAHLoN E. Wave front analyses of impulses in tunicate hart. Am. J. Physiol. 218(4) : 1194-l 200. 1970.-The U-shaped, tubular hearts of Ciona are composed of a single layer of cells joined by apical tight junctions. Pacemakers at each end alternate in periods of activity, reversing the direction of blood flow. Hearts are attached by a raphe along one edge to the pericardium. Impulses do...

PURPOSE Mouthguards are available to provide protection from stomatognathic injury during sports. The aim of this study was to examine the thickness of each part of mouthguard sheet depending on the thickness of mouthguard sheet material. METHODS Cross stripes (10 x 10 mm) were printed in mouthguard sheets. We measured the thickness of each cross stripe area using a measuring-device (R). Two ...

Difference sets and their generalisations to difference families arise from the study of designs and many other applications. Here we give a brief survey of some of these applications, noting in particular the diverse definitions of difference families and the variations in priorities in constructions. We propose a definition of disjoint difference families that encompasses these variations and...

We present a new family of one-coincidence sequence sets suitable for frequency hopping code division multiple access (FH-CDMA) systems with dispersed (low density) sequence elements. These sets are derived from one-coincidence prime sequence sets, such that for each one-coincidence prime sequence set there is a new one-coincidence set comprised of sequences with dispersed sequence elements, re...