Decentralisation: a multidisciplinary perspective

Contains fulltext : 236508.pdf (Publisher’s version ) (Open Access

Decentralisation in the blockchain space

Contains fulltext : 233930.pdf (Publisher’s version ) (Open Access)25 november 202

Underdiagnosis of myocardial infarction in COPD – Cardiac Infarction Injury Score (CIIS) in patients hospitalised for COPD exacerbation

SummaryBackgroundPatients with chronic obstructive pulmonary disease (COPD) are usually former or current smokers, and are at increased risk of ischemic heart disease. We used Cardiac Infarction Injury Score (CIIS) to assess the prevalence of prior myocardical infarction (MI) in COPD patients and compared this to clinicians' previous diagnosis of MI.MethodsFrom the hospital database, 897 patients (mean age 70.9 years, 50.8% female) discharged after treatment for COPD exacerbation in the years 2000–2003 were identified. Disease history was established from medical records and the hospital patient database. Electrocardiograms from the day of admission were available in 827 patients, and were coded according to the CIIS algorithm by an investigator blinded to clinical and outcome data. The CIIS score was validated using follow-up data for the first year after discharge.ResultsTwo hundred and twenty-nine patients had CIIS≥20, out of whom only 30% (95% confidence interval: 24–36%, n=68) had a recognised history of MI. Female patients had a lower probability of diagnosis despite ECG evidence. Validation of CIIS using multivariate Cox regression analysis showed that a score≥20 had independent prognostic value for the first year after discharge, with an adjusted HR of 1.52 (1.14–2.03).ConclusionUnrecognised MI is common in patients hospitalised with COPD exacerbation. Less than one-third of patients with ECG evidence of previous MI by the CIIS system actually have the diagnosis in their medical records

Nonlocal Dynamics of p-Adic Strings

We consider the construction of Lagrangians that might be suitable for describing the entire $p$-adic sector of an adelic open scalar string. These Lagrangians are constructed using the Lagrangian for $p$-adic strings with an arbitrary prime number $p$. They contain space-time nonlocality because of the d'Alembertian in argument of the Riemann zeta function. We present a brief review and some new results.Comment: 8 page

Quad-Polarimetric SAR for Detection and Characterization of Icebergs

Website for ESA Living Planet Symposium 2016.This paper evaluates the performance of fully polarimetric SAR data in iceberg detection and characterization. The study aims to explore the potential of RADARSAT-2 SAR data to detect icebergs and growlers in Svalbard that have broken off from the glaciers nearby. To be able to detect iceberg/growlers in a SAR image, a significant contrast between iceberg and background clutter is required. The sublook cross-correlation magnitude (SCM) is extracted from the complex cross-correlation between subapeture images and contrast between iceberg and sea clutter is measured. The results of target-to-clutter ratio from the SCM indicate that the sublook analysis has an impact on detection performance