Stuart P. Baker

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In autonomous ground systems, developing a clear model of the surroundings is crucial for operating in any environment. Three-dimensional light detection and ranging (LIDAR) sensors, such as the Velodyne HDL-64E S2, are powerful tools for robotic perception. However, these sensors generate large data sets exceeding one million points per second that can be(More)
BACKGROUND When potential research participants are incapable of providing consent, it is common for clinicians and researchers to approach family members, attempting to ascertain that person's wishes. Where legally recognised, surrogate consent may also then be provided by relatives for therapy or research involvement. This practice is widely accepted as(More)
BACKGROUND Allogeneic red blood cell (RBC) transfusion is associated with significant increases in mortality and major morbidity in patients admitted to the intensive care unit, and the blood supplies it requires are an increasingly scarce and costly resource. Despite high levels of compliance with recommended transfusion thresholds in the ICU, RBC(More)
A middle-aged woman was admitted to hospital after a motor vehicle accident. A large acute intracranial haematoma was initially thought to be traumatic in origin, but its unusual position and the lack of external features of head trauma prompted investigation for other causes of intracerebral haemorrhage. Moyamoya intracranial vascular abnormalities were(More)
In an observational study using heparinase-modified thrombelastography, we investigated the percentage of elective cardiothoracic surgical patients receiving low-dose unfractionated heparin (5000 IU 12 hourly subcutaneously) who had a demonstrable systemic heparin effect. Blood samples were obtained at induction from 40 adult elective cardiothoracic(More)
Anti-N-methyl-D-aspartate (NMDA) receptor encephalitis causes autonomic disturbances, behavioural changes and abnormal movements. It is often a paraneoplastic phenomenon that occurs in association with ovarian teratomas and is the most common paraneoplastic encephalitis. We report nine cases of critically ill patients with anti- NMDA receptor encephalitis(More)
The Non-invasive Cardiac Output (NICO) monitor (Novametrix Medical Systems Inc., Wallingford, CT, U.S.A.) utilizes a minimally-invasive partial rebreathing method to determine cardiac output by means of a differential form of the Fick equation. We evaluated the NICO monitor by comparing its output to paired measurements obtained by the standard(More)
We report a case of multi-system organ failure as a result of unsuspected colchicine overdose in a patient with known gout and bulimia nervosa. The patient had initially presented with mild gastrointestinal symptoms with rapid progression to fulminant hepatic failure and multiple organ dysfunction before the causative agent was identified. The patient(More)
Hyperoxaemia in patients undergoing mechanical ventilation (MV) has been found to be an independent predictor of worse outcome and in-hospital mortality in some conditions. Data suggests that a fraction of inspired oxygen (FiO2) of 0.4 or lower may produce hyperoxaemia although it is commonly accepted without adjustment in ventilator settings. The primary(More)
Both anaemia and allogenic red blood cell transfusion are common and potentially harmful in patients admitted to the intensive care unit. Whilst intravenous iron may decrease anaemia and RBC transfusion requirement, the safety and efficacy of administering iron intravenously to critically ill patients is uncertain. The multicentre, randomized,(More)