- Photochemistry and Electron Transfer Studies
- Advanced Chemical Physics Studies
- Spectroscopy and Quantum Chemical Studies
- Medical Image Segmentation Techniques
- Molecular Junctions and Nanostructures
- Advanced MRI Techniques and Applications
- Molecular Spectroscopy and Structure
- Geology and Paleoclimatology Research
- Climate variability and models
- Spectroscopy and Laser Applications
- Synthesis and Properties of Aromatic Compounds
- Medical Imaging Techniques and Applications
- Inorganic and Organometallic Chemistry
- Solid-state spectroscopy and crystallography
- Cardiac Imaging and Diagnostics
- Climate change and permafrost
- Atmospheric and Environmental Gas Dynamics
- Peatlands and Wetlands Ecology
- Molecular spectroscopy and chirality
- Atrial Fibrillation Management and Outcomes
- Various Chemistry Research Topics
- Blood Coagulation and Thrombosis Mechanisms
- Synthesis and Biological Evaluation
- Cardiovascular Function and Risk Factors
- Atmospheric chemistry and aerosols
Western University
2007-2025
London Health Sciences Centre
2007-2022
Victoria Hospital
2017-2022
Centre National de la Recherche Scientifique
2011-2012
Centre d'Écologie Fonctionnelle et Évolutive
2011-2012
University of Victoria
2009-2010
University of Bristol
2005-2010
Australian National University
1971-2003
Kingston General Hospital
2003
Queen's University
2003
Abstract. For the first time, a model that simulates methane emissions from northern peatlands is incorporated directly into dynamic global vegetation model. The model, LPJ-WHyMe (LPJ Wetland Hydrology and Methane), was previously modified in order to simulate peatland hydrology, permafrost dynamics vegetation. using mechanistic approach, although use of some empirical relationships parameters unavoidable. production, three pathways transport (diffusion, plant-mediated ebullition) oxidation....
Northern peatlands and permafrost soils are associated with large carbon stocks. Rising temperatures likely to affect the balance in high‐latitude ecosystems, but what degree is uncertain. We have enhanced Lund‐Potsdam‐Jena (LPJ) dynamic global vegetation model by introducing processes necessary simulate dynamics, peatland hydrology, vegetation. The new version, LPJ‐WHy v1.2, was used study soil temperature, active layer depth, distribution, water table position. Modeled agreed well...
The lower excited π-electron levels of benzene are calculated by the non-empirical method antisymmetrized products molecular orbitals (in LCAO approximation) including configuration interaction. All configurations arising from excitation one or two electrons most stable considered, and all many-center integrals retained. results in better agreement with experiment valence-bond calculations than those obtained previously Craig a calculation neglecting integrals. Configuration interaction is...
[1] Peatlands and permafrost are important components of the carbon cycle in northern high latitudes. The inclusion these into a dynamic global vegetation model required changes to physical land surface routines, addition two new peatland-specific plant functional types, incorporation an inundation stress mechanism, deceleration decomposition under inundation. model, LPJ-WHy v1.2, was used simulate net ecosystem production (NEP), primary (NPP), heterotrophic respiration (HR), soil content....
Transition metal complexes with configurations d 4 , 5 6 and 7 are of two types—high-spin low-spin— depending on the strength ligand field. Ligand field theory predicts that truly octahedral ML could exist in which both types thermal equilibrium at ordinary temperatures, but no completely unambiguous examples this crossover ’ situation have yet been put forward. The magnetic spectral properties associated nearly equi-energetic high- lowspin states should be singularly sensitive to...
We propose to embed overlap priors in variational tracking of the left ventricle (LV) cardiac magnetic resonance (MR) sequences. The method consists evolving two curves toward LV endo- and epicardium boundaries. derive curve evolution equations by minimizing functionals each containing an original prior constraint. latter measures conformity between nonparametric (kernel-based) intensity distributions within three target regions--LV cavity, myocardium background-to a learned from given...
A combined Dewar vessel and double absorption cell is described for use in the quantitative measurement of ultra-violet spectra solutions between + 100 - 196° C. The apparatus particularly convenient when used conjunction with Cary recording spectrophotometer. Temperature confraction data are given a number useful solvents.
BY I. G. Ross William Ramsay and Ralph Forster Laboratories, University College, London' The ASMO method is applied, with full configuration interaction, to the calculation of rr-electron energy levels lin
Previous theories advanced to account for the differences between moments of polar molecules, as measured in dilute solution (in non-polar solvents) and from gas measurements, are discussed on basis an internal field function ξ, determining inside ellipsoidal obstacle a polarized uniform medium. Contours ξ axial ratios ellipsoid have been calculated. Onsager's theory static dielectric constant is extended solvent effect solute molecules polarizability, which dipole parallel one axes...
The mid‐Holocene (6000 years before present) North Atlantic Oscillation (NAO) from nine models in the Paleoclimate Modeling Intercomparison Project Phase 2 is studied, primarily through principal component analysis of winter time sea level pressure (SLP). Modeled NAO and mean SLP show small changes compared to pre‐industrial control runs, with a shift state towards more positive regime for three models. variability shows little change, increase some fraction spent NAO‐negative phase during...
The first page of this article is displayed as the abstract.
The first page of this article is displayed as the abstract.
The first page of this article is displayed as the abstract.