Search Results - "SEPHTON, P"

ASPIRE registry: Assessing the Spectrum of Pulmonary hypertension Identified at a REferral centre by HURDMAN, J, CONDLIFFE, R, BILLINGS, C, LAWRIE, A, SABROE, I, AKIL, M, O'TOOLE, L, KIELY, D. G, ELLIOT, C. A, DAVIES, C, HILL, C, WILD, J. M, CAPENER, D, SEPHTON, P, HAMILTON, N, ARMSTRONG, I. J

“…Pulmonary hypertension (PH) is a heterogeneous condition. To date, no registry data exists reflecting the spectrum of disease across the five diagnostic groups…”
Get full text

Central venous catheter-related blood stream infections in patients receiving intravenous iloprost for pulmonary hypertension by Sammut, D., Elliot, C. A., Kiely, D. G., Armstrong, I. J., Martin, L., Wilkinson, J., Sephton, P., Jones, J., Hamilton, N., Hurdman, J., McLellan, E., Sabroe, I., Condliffe, R.

“…Catheter-related blood stream infection (CR-BSI) in patients with pulmonary hypertension (PH) receiving intravenous iloprost via an indwelling central line has…”
Get full text

Breaking deterministics, test size and the efficient Wald test for fractional unit roots by Sephton, P. S.

“…Lobato and Velasco ( 2007 ) introduced a test for a unit root against fractional alternatives with good power and performance properties. The purpose of this…”
Get full text

Unit roots and purchasing power parity: another kick at the can by Sephton, P. S.

“…Lopez et al. ( 2005 ) demonstrated that single-equation unit-root tests cannot provide conclusive evidence of whether real exchange rates are stationary…”
Get full text

On the empirical size of Nielsen's multivariate likelihood ratio test of fractional integration by Sephton, P. S.

“…Nielsen (2004) provides multivariate maximum likelihood procedures to test whether several series are fractionally integrated. This note examines the finite…”
Get full text

Who cut the cheese? by Sephton, P. S.

“…In this article I examine whether retail and producer prices for American processed cheese follow a long-run linear relationship. The results suggest that…”
Get full text

Market shares and rivalry in the U.S. cigarette industry by Sephton, P.

“…In a recent article Gallet and List ( 2001 ) examined whether relative market shares in the U.S. cigarette market were mean-reverting using traditional…”
Get full text

Financial analysis package for GAUSS by Sephton, P. S.

“…The Financial Analysis Package by Aptech, a set of GAUSS routines frequeintly used in the analysis of financial data, is reviewed…”
Get full text

Fractional cointegration: Monte Carlo estimates of critical values, with an application by Sephton, P. S.

“…A fractionally integrated series is mean-reverting, and may be covariance stationary. Recent interest in fractional integration has been extended to tests of…”
Get full text

Validation of a new TDCR system at NPL by Johansson, L.C., Sephton, J.P.

“…A new triple to double coincidence ratio (TDCR) system has been established at NPL. The system incorporates a spherical optical chamber, a manual sample…”
Get full text

C59 TOPICS ON SELF-MANAGEMENT AND SUPPORTIVE CARE ACROSS THE SPECTRUM OF CHRONIC RESPIRATORY CONDITIONS: Patients' Views About Living And Dying With Pulmonary Arterial Hypertension by Armstrong, I, Yorke, J, Warden, J, Sephton, P, McGowan, L

Get full text

Progress towards an alanine/ESR therapy level reference dosimetry service at NPL by Sharpe, P.H.G., Rajendran, K., Sephton, J.P.

“…This paper describes work being carried out at the National Physical Laboratory towards the establishment of an alanine reference dosimetry service for…”
Get full text

Response surface estimates of the KPSS stationarity test by Sephton, Peter S.

“…A series of Monte Carlo experiments provide the basis for response surface estimates of approximate critical 1%, 5%, and 10% values of the Kwiatkowski et al…”
Get full text

Monte Carlo modelling and real-time dosemeter measurements of dose rate distribution at a (60)Co industrial irradiation plant by Bailey, M, Sephton, J P, Sharpe, P.H.G.

“…The dose rate distribution in a MDS Nordion JS7500 (60)Co industrial irradiation plant has been calculated using the egspp Monte Carlo code. This code is a…”
Get full text

A low noise preamplifier with optoelectronic overload protection for radioactivity measurement by Sephton, J.P., Williams, J.M., Johansson, L.C., Philips, H.C.

“…Pulses from detectors used for radioactivity measurement can vary in size by several orders of magnitude. Large pulses will lead to saturation at the…”
Get full text

A preliminary investigation into a simple method for the determination of the mean ionisation energy of gas mixtures used in the NPL primary gas counting system by Phillips, H.C., Sephton, J.P., Johansson, L.C., Dean, J.C.J.

“…The activity concentration of gaseous beta-emitting radionuclides such as 3H, 85Kr and, more recently, 11C, is measured at NPL using a set of…”
Get full text

Market shares and rivalry in the U.S. cigarette industry by Sephton, P

“…In a recent article Gallet and List (2001) examined whether relative market shares in the U.S. cigarette market were mean-reverting using traditional…”
Get full text

Standardisation of positron-emitters in gas with the NPL primary gas counting system by Marouli, M., Dean, J.C.J., Sephton, J.P., Spyrou, N.M.

“…A primary standard for positron-emitters in gas has been developed. The method involves internal gas proportional counting and the use of the PENELOPE Monte…”
Get full text

The behaviour of alanine dosimeters at temperatures between 100 and 300 K by Sharpe, P.H.G., Sephton, J.P., Gouldstone, C.A.

“…A cryostat has been constructed to enable irradiations in a MDS Nordion Gammacell 220 irradiator to be carried out at selected temperatures between 100 and 300…”
Get full text

Use of a range scaling method to determine alanine/water stopping power ratios by McEwen, M.R., Sephton, J.P., Sharpe, P.H.G., Shipley, D.R.

“…A phantom composed of alanine dosimeter material has been constructed and depth–dose measurements made in a 10 MeV electron beam. The results have demonstrated…”
Get full text