Windthrow affects the outcomes of forest level plans and stand level prescriptions in many areas of BC –especially on the coast and on the interior plateau. Recent changes in management approaches...
A tree winching experiment was conducted, simulating wind action and resulting damage, in order to assess mechanical resistance of black spruce (Picea mariana (Mill.) B.S.P.) trees in stands of...
First-Principles Parameter Estimation for Dynamic Monte Carlo of a Lattice-Gas Model (2007)
S. J. Mitchell, Sanwu Wang, P. A. Rikvold, G. Brown
Abstract. We present preliminary results demonstrating how dynamic Monte Carlo transition rates for lateral diffusion can be found from quantum ab initio calculations. As an example, we consider the...
Monte Carlo simulations of a semi-flexible polymer chain: a first glance (2006)
Seaton,D. T., Mitchell,S. J., Landau,D. P.
We present preliminary results for Monte Carlo simulations of a three dimensional semi-flexible polymer chain with continuous monomer positions. In these simulations, standard Metropolis Monte Carlo...
Rikvold, P. A., Wandlowski, Th., Hamad, I. Abou, Mitchell, S. J., Brown, G.
We reply to remarks by Lang and Horanyi on the meaning of the notion of "electrosorption valency" used in I. Abou Hamad et al., Electrochim. Acta 50 (2005) 5518. It is concluded that, contrary to the...
Hamad, I. Abou, Mitchell, S. J., Wandlowski, Th., Rikvold, P. A., Brown, G.
We present Monte Carlo Simulations using an equilibrium lattice-gas model for the electrosorption of Cl on Ag(100) single-crystal surfaces. Fitting the simulated isotherms to chronocoulometry...
An Off-lattice Model for Br Electrodeposition on Au(100): from DFT to Experiment (2004)
Mitchell, S. J., Koper, M. T. M.
Since Br adsorption on Au(100) displays an incommensurate ordered phase, a lattice-gas treatment of the adlayer configurations is not reliable. We therefore use density functional theory slab...
Shunting inhibition modulates neuronal gain during synaptic excitation (2003)
Neuronal gain control is important for processing information in the brain. Shunting inhibition is not thought to control gain since it shifts input-output relationships during tonic excitation...
Surface scaling analysis of hydrogels: From multiaffine to self-affine scaling (2003)
Buendia, G. M., Mitchell, S. J., Rikvold, P. A.
We show that smoothing of multiaffine surfaces that are generated by simulating a crosslinked polymer gel by a frustrated, triangular network of springs of random equilibrium lengths [G.M....
The value of screening tests in applicants for professional pilot medical certification (2003)
Mitchell, S. J., Schenk, C. P.
‘ … good medicine does not consist in the indiscriminate application of laboratory examinations to a patient, but rather in having so clear a comprehension of the probabilities and possibilities...
Rejection-free Monte Carlo Algorithms for Models with Continuous Degrees of Freedom (2002)
Munoz, J. D., Novotny, M. A., Mitchell, S. J.
We construct a rejection-free Monte Carlo algorithm for a system with continuous degrees of freedom. We illustrate the algorithm by applying it to the classical three-dimensional Heisenberg model...
Vertical Discontinuities in Self-Affine Surfaces Lead to Multi-affinity (2002)
Many systems of both theoretical and applied interest display multi-affine scaling at small length scales. We demonstrate analytically and numerically that when vertical discontinuities are...
Buendia, G. M., Mitchell, S. J., Rikvold, P. A.
We propose and study a simplified model for the surface and bulk structures of crosslinked polymer gels, into which voids are introduced through templating by surfactant micelles. Such systems were...
Mitchell, S. J., Wang, Sanwu, Rikvold, P. A.
We investigate the static and dynamic behaviors of a Br adlayer electrochemically deposited onto single-crystal Ag(100) using an off-lattice model of the adlayer. Unlike previous studies using a...
Scaling Analysis of Surfactant Templated Polyacrylamide Gel Surfaces (2001)
Chakrapani, Mukundan, Mitchell, S. J., Van Winkle, D. H., Rikvold, P. A.
Surfaces of surfactant-templated polyacrylamide hydrogels were imaged by atomic force microscopy (AFM), and the surface morphology was studied by numerical scaling analysis. The templated gels were...
Lidocaine in the treatment of decompression illness: a review of the literature (2001)
Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
Children with dyspraxia : Differential diagnosis and intervention. (2001)
Mitchell, S.J, Exeter Univ. (GB).
Thesis (Ph.D.)
Measurement of the hydrodynamic forces between two polymer-coated spheres (2000)
Bartlett, P., Henderson, S. I., Mitchell, S. J.
The hydrodynamic forces between Brownian spheres are determined from a measurement of the correlated thermal fluctuations in particle position using a new method, two-particle cross-correlation...
Static and Dynamic Monte Carlo Simulations of Br Electrodeposition on Ag(100) (2000)
Mitchell, S. J., Brown, G., Rikvold, P. A.
We study the static and dynamic properties of bromine electrosorption onto single-crystal silver (100) electrodes by Monte Carlo simulation. At room temperature the system displays a second-order...
Hysteresis in an Electrochemical System: Br Electrodeposition on Ag(100) (2000)
Mitchell, S. J., Brown, G., Rikvold, P. A.
We examine hysteresis in cyclic voltammetry of Br electrosorption onto single-crystal Ag(100) by dynamic Monte Carlo simulations. At room temperature, this system displays a second-order phase...
Dynamics of Br Electrosorption on Single-Crystal Ag(100): A Computational Study (2000)
Mitchell, S. J., Brown, G., Rikvold, P. A.
We present dynamic Monte Carlo simulations of a lattice-gas model for bromine electrodeposition on single-crystal silver (100). This system undergoes a continuous phase transition between a...
Application of the Projected Dynamics Method to an Anisotropic Heisenberg Model (1999)
Mitchell, S. J., Novotny, M. A., Munoz, Jose D.
The Projected Dynamics method was originally developed to study metastable decay in ferromagnetic discrete spin models. Here, we apply it to a classical, continuous Heisenberg model with anisotropic...
Gregory Brown, Per Arne Rikvold, S. J. Mitchell, M. A. Novotny
We present a tutorial discussion of Monte Carlo methods for equilibrium and nonequilibrium problems in interfacial electrochemistry. The discussion is illustrated with results from simulations of...
Brown, Gregory, Rikvold, Per Arne, Mitchell, S. J., Novotny, M. A.
We present a tutorial discussion of Monte Carlo methods for equilibrium and nonequilibrium problems in interfacial electrochemistry. The discussion is illustrated with results from simulations of...
Bartonella bacilliformis, the agent of human Oroya fever, invades erythrocytes and causes a severe hemolytic anemia. The ability of two minimally invasive strains of Escherichia coli (DH5 alpha and...
Mitchell, S J, McHale, D P, Campbell, D A, Lench, N J, Mueller, R F, Bundey, S E, ...
Nine affected individuals are described from a large extended Pakistani family manifesting a syndrome characterized by a triad of varying degrees of spasticity, severe mental retardation, and visual...
Long, R G, Bryant, M G, Mitchell, S J, Adrian, T E, Polak, J M, Bloom, S R
During a six-year period (1973-9) 52 patients with pancreatic tumours and 10 with ganglioneuroblastomas were found to have raised plasma vasoactive intestinal polypeptide (VIP) concentrations. All...
We have estimated DNA sequence variation within and between two populations of Drosophila ananassae, using six-cutter restriction site variation at vermilion (v) and furrowed (fw). These two gene...
Bartonella bacilliformis, the agent of human Oroya fever, invades erythrocytes and causes a severe hemolytic anemia. The ability of two minimally invasive strains of Escherichia coli (DH5 alpha and...
We have estimated DNA sequence variation within and between two populations of Drosophila ananassae, using six-cutter restriction site variation at vermilion (v) and furrowed (fw). These two gene...
Mitchell, S J, McHale, D P, Campbell, D A, Lench, N J, Mueller, R F, Bundey, S E, ...
Nine affected individuals are described from a large extended Pakistani family manifesting a syndrome characterized by a triad of varying degrees of spasticity, severe mental retardation, and visual...
Long, R G, Bryant, M G, Mitchell, S J, Adrian, T E, Polak, J M, Bloom, S R
During a six-year period (1973-9) 52 patients with pancreatic tumours and 10 with ganglioneuroblastomas were found to have raised plasma vasoactive intestinal polypeptide (VIP) concentrations. All...
Measurement of fasting and postprandial plasma VIP in man.
A specific radioimmunoassay has been developed capable of detecting 1.5 pmol VIP/l plasma with 95% confidence. The antisera employed reacted most avidly with whole VIP, partly with C terminal, but...
Vasoactive intestinal peptide in man: pharmacokinetics, metabolic and circulatory effects.
Domschke, S, Domschke, W, Bloom, S R, Mitznegg, P, Mitchell, S J, Lux, G, ...
Graded doses of 0.6, 1.3, and 3.3 pmol/kg/min of vasoactive intestinal peptide (VIP) were intravenously infused over 30 minute periods in four healthy volunteers and plasma VIP levels were measured...
Mitchell, S J, Cole, T, Redford, D H
We report four cases of congenital diaphragmatic hernia occurring in two generations of a consanguineous Pakistani family. The affected subjects resembled no recognised genetic syndrome. This family...
Young mentally handicapped adults in three London boroughs: prevalence and degree of disability.
A survey of 282 young adults, mentally handicapped on an administrative definition, was undertaken in th London Boroughs of Hounslow, Hammersmith, and Ealing between October 1978 and April 1980. The...