User profiles for R. Gajraj

Roger Gajraj

Lecturer of Computer Science, University of Guyana
Verified email at uog.edu.gy
Cited by 42

Relationship between calculated blood concentration of propofol and electrophysiological variables during emergence from anaesthesia: comparison of bispectral …

M Doi, RJ Gajraj, H Mantzaridis, GN Kenny - British Journal of Anaesthesia, 1997 - Elsevier
We studied four electrophysiological variables (bispectral index (BIS), 95% spectral edge
frequency (SEF), median frequency (MF) and auditory evoked potential index (AEP index) in …

Analysis of the EEG bispectrum, auditory evoked potentials and the EEG power spectrum during repeated transitions from consciousness to unconsciousness.

RJ Gajraj, M Doi, H Mantzaridis… - British journal of …, 1998 - academic.oup.com
We have compared the auditory evoked potential (AEP) index (a numerical index derived
from the AEP), 95% spectral edge frequency (SEF), median frequency (MF) and the bispectral …

Third-generation biofuel: algal biofuels as a sustainable energy source

RS Gajraj, GP Singh, A Kumar - … Gas Mitigation and Global Warming: Next …, 2018 - Springer
Algal biofuels are third-generation biofuels which do not require agricultural land and potable
water resources. Recently, culturing of microalgae as an alternative feedstock for biofuel …

Comparison of bispectral EEG analysis and auditory evoked potentials for monitoring depth of anaesthesia during propofol anaesthesia.

RJ Gajraj, M Doi, H Mantzaridis… - British journal of …, 1999 - academic.oup.com
We have compared the auditory evoked potential index (AEPIndex) and bispectral index (BIS)
for monitoring depth of anaesthesia in spontaneously breathing surgical patients. Twenty …

Effects of cardiopulmonary bypass and hypothermia on electroencephalographic variables

M Doi, RJ Gajraj, H Mantzaridis, GNC Kenny - Anaesthesia, 1997 - Wiley Online Library
We studied the effects of hypothermia and cardiopulmonary bypass (CPB) on four depth of
anaesthesia monitors; spectral edge frequency (SEF), median frequency (MF), bispectral …

The performance of electroencephalogram bispectral index and auditory evoked potential index to predict loss of consciousness during propofol infusion

S Schraag, U Bothner, R Gajraj, GNC Kenny… - Anesthesia & …, 1999 - journals.lww.com
The bispectral index (BIS) of the electroencephalogram and middle latency auditory evoked
potentials are likely candidates to measure the level of unconsciousness and, thus, may …

A comparison of the antibacterial activity of levobupivacaine vs. bupivacaine: an in vitro study with bacteria implicated in epidural infection

M Hodson, R Gajraj, NB Scott - Anaesthesia, 1999 - Wiley Online Library
The purpose of the study was to compare the antibacterial activity of bupivacaine with
levobupivacaine against a range of bacteria implicated in epidural infection to determine whether …

Prediction of movement at laryngeal mask airway insertion: comparison of auditory evoked potential index, bispectral index, spectral edge frequency and median …

M Doi, RJ Gajraj, H Mantzaridis, GN Kenny - British journal of anaesthesia, 1999 - Elsevier
We have studied 46 patients to compare the efficacy of the auditory evoked potential (AEP)
index, bispectral index (BIS), 95% spectral edge frequency (SEF) and median frequency (MF) …

Multiple outbreaks of Salmonella braenderup associated with consumption of iceberg lettuce

R Gajraj, S Pooransingh, JI Hawker… - International Journal of …, 2012 - Taylor & Francis
The aim of this study was to describe the findings from an outbreak investigation following
several apparently unrelated community outbreaks of gastroenteritis. Epidemiological, …

Interventions to improve latent and active tuberculosis treatment completion rates in underserved groups in low incidence countries: a scoping review

…, A Basu, L Ahyow, A Nagasivam, DJ Moore, R Gajraj… - BMJ open, 2024 - bmjopen.bmj.com
Background People in underserved groups have higher rates of tuberculosis (TB) and
poorer treatment outcomes compared with people with no social risk factors. Objectives This …