University of Portsmouth

About: University of Portsmouth is a education organization based out in Portsmouth, Portsmouth, United Kingdom. It is known for research contribution in the topics: Population & Galaxy. The organization has 5452 authors who have published 14256 publications receiving 424346 citations. The organization is also known as: Portsmouth and Gosport School of Science and Art & Portsmouth and Gosport School of Science and the Arts.

Patterns in the recording of vital signs and early warning scores: compliance with a clinical escalation protocol

Abstract: Background The recognition of patient deterioration depends largely on identifying abnormal vital signs, yet little is known about the daily pattern of vital signs measurement and charting Methods We compared the pattern of vital signs and VitalPAC Early Warning Score (ViEWS) data collected from admissions to all adult inpatient areas (except high care areas, such as critical care units) of a NHS district general hospital from 1 May 2010 to 30 April 2011, to the hospital's clinical escalation protocol Main outcome measures were hourly and daily patterns of vital signs and ViEWS value documentation; numbers of vital signs in the periods 08:00–11:59 and 20:00–23:59 with subsequent vital signs recorded in the following 6 h; and time to next observation (TTNO) for vital signs recorded in the periods 08:00–11:59 and 20:00–23:59 Results 950 043 vital sign datasets were recorded The daily pattern of observation documentation was not uniform; there were large morning and evening peaks, and lower night-time documentation The pattern was identical on all days 2384% of vital sign datasets with ViEWS ≥ 9 were measured at night compared with 1012–1997% for other ViEWS values 4742% of patients with ViEWS=7–8 and 3122% of those with ViEWS ≥ 9 in the period 20:00–23:59 did not have vital signs recorded in the following 6 h TTNO decreased with increasing ViEWS value, but less than expected by the monitoring protocol Conclusions There was only partial adherence to the vital signs monitoring protocol Sicker patients appear more likely to have vital signs measured overnight, but even their observations were often not followed by timely repeat assessments The observed pattern of monitoring may reflect the impact of competing clinical priorities

Gravitational collapse on the brane: a no-go theorem.

Abstract: (Received 3 August 2001; published 13 November 2001)We investigate how braneworld gravity affects gravitational collapse and black hole formation bystudying Oppenheimer-Snyder–like collapse on a Randall-Sundrum–type brane. Without making anyassumptions about the bulk, we prove a no-go theorem: the exterior spacetime on the brane cannot bestatic, which is in stark contrast with general relativity. We also consider the role of Kaluza-Klein energydensity in collapse, using a toy model.

All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data

Abstract: We present results of an all-sky search for continuous gravitational waves (CWs), which can be produced by fast spinning neutron stars with an asymmetry around their rotation axis, using data from the second observing run of the Advanced LIGO detectors. Three different semicoherent methods are used to search in a gravitational-wave frequency band from 20 to 1922 Hz and a first frequency derivative from -1×10-8 to 2×10-9 Hz/s. None of these searches has found clear evidence for a CW signal, so upper limits on the gravitational-wave strain amplitude are calculated, which for this broad range in parameter space are the most sensitive ever achieved.