A5065696673- Laser-induced spectroscopy and plasma
- Tracheal and airway disorders
- Atomic and Molecular Physics
- Tumors and Oncological Cases
- High-pressure geophysics and materials
- Teratomas and Epidermoid Cysts
- Ion-surface interactions and analysis
- Spectroscopy and Quantum Chemical Studies
- Diamond and Carbon-based Materials Research
- Ear Surgery and Otitis Media
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Information and Cryptography
- Vascular Malformations and Hemangiomas
- Obstructive Sleep Apnea Research
- Dysphagia Assessment and Management
- Magnetic confinement fusion research
- Physics of Superconductivity and Magnetism
- X-ray Spectroscopy and Fluorescence Analysis
- Streptococcal Infections and Treatments
- Laser-Plasma Interactions and Diagnostics
- Airway Management and Intubation Techniques
- Infective Endocarditis Diagnosis and Management
- Head and Neck Anomalies
- Genetic and rare skin diseases.
- Plasma Diagnostics and Applications
University of Bristol
2024
Royal Belfast Hospital for Sick Children
2018-2023
University of St Andrews
2022
University of Oxford
2016
Starship Children's Health
2016
Antrim Area Hospital
2012
University of Essex
1988-1989
Understanding the entropy production of systems strongly coupled to thermal baths is a core problem both quantum thermodynamics and mesoscopic physics. While many techniques exist accurately study in such systems, they typically require microscopic description baths, which can become numerically intractable for large systems. Alternatively an open-systems approach be employed with all nuances associated various levels approximation. Recently, leads has emerged as powerful method studying...
The possibility of creating hot-dense plasma samples by isochoric heating solid targets with high-intensity femtosecond X-ray lasers has opened up new opportunities in the experimental study such systems. A spectra emitted from density plasmas provided significant insight into absorption mechanisms, subsequent target heating, and conditions temperature, electron density, ionization stages produced (Vinko et al., Nature 482, 59–62 (2012)). Furthermore, detailed analysis information on degree...
Objectives/Hypothesis Tonsillectomy as a day‐stay procedure remains controversial, although it is an established in New Zealand. We reviewed our last 10 years' experience. Methods A prospective audit was used to determine unplanned conversion from overnight hospital admission rates and the incidence of postoperative complications. Results There were 5,400 tonsillectomies performed over 10‐year study period (January 2004–January 2015); 71% outpatients. The rate stay 0.4%. median age patients...
We present what we believe are the first experimental observations of ion correlation effects in a dense plasma. The plasma is produced aluminum by colliding shocks driven high-power laser beams. Computer simulations suggest that peak temperature over 1 eV and densities several times solid produced. Short-range order within observed means extended x-ray-absorption fine-structure (EXAFS) spectrum alminum $K$ absorption edge. Densities measured from EXAFS reasonable agreement with computer predictions.
Mastoiditis can result from untreated otitis media. If unrecognised, it in life-threatening complications. We present a 69-year-old woman with history of left-sided media admitted to intensive care unit following collapse decreasing Glasgow Coma Scale. Myringotomy and ventilator insertion revealed pus the middle ear, which grew Group A Streptococcus . Her fever persisted blood samples cultured Echocardiogram confirmed subacute bacterial endocarditis. Subacute endocarditis is rare...
Measurements on laser shock compressed aluminium using the EXAFS (Extended X-ray Absorption Fine Structure) technique Al K-edge are described. Two methods of analysis this data were used for determination density: standard Fourier transforms and curve fitting, a method based bandstructure calculation absorption spectra as function compression. These two techniques give results which in fairly good agreement with each other also hydrodynamic simulation experiment. The ion correlation...
The use of propranolol for the treatment subglottic haemangioma has become hugely popular due to its effectiveness and safety profile. We report a case 7-month-old boy who presented with stridor histopathology suggestive following microlaryngoscopy bronchoscopy (MLB). However, he did not respond treatment. This could be an older age commencement. In general, early commencement is necessary when diagnosis symptomatic infantile made achieve maximal improvement in symptoms prevent further...
Fermi-edge singularity and Anderson's orthogonality catastrophe are paradigmatic examples of non-equilibrium many-body physics in conductors, appearing after a quench is created by the sudden change localised potential. We investigate if signal carried can be used to transmit long ranged interaction, reminiscent RKKY but with inclusion full propagation over space time. calculate response conductor two quenches induced states at different times locations. show that building up maintaining...
Management of third and fourth branchial cleft anomalies are similar. These should be suspected in a child with recurrent low-anterior neck abscess. Investigations the form cross-sectional studies examination pharynx under anaesthesia will facilitate diagnosis resolution Spontaneous closure pyriform sinus can occur following conservative management antibiotic treatment abscess drainage. This emphasise role second-look prior to implementing endoscopic cauterisation or surgery.
Laser-produced plasma continuum X-ray sources have been generated using the high power VULCAN glass laser system at SERC Rutherford Appleton Laboratory, and used for a range of absorption spectroscopic measurements. EXAFS (extended absorpticn fine structure) spectra recorded in transmission mode various low Z materials both time-integrated time-resolved techniques, experiments performed to study ion correlation effects strongly coupled via nearest neighbour distance measurement. A reflection...
In this paper we present the first observation of ion correlation effects in a dense plasma. A range experiments has been carried out at SERC Rutherford Appleton Laboratory, UK, using their high power laser system (VULCAN) for shock compression and heating thin aluminium foil targets. The plasma is produced Ising colliding technique. Short order within observed Extended X-ray Absorption Fine Structure (EXAFS) spectrum K absorption edge. Densities ≈2X solid density have measured from EXAFS...