307 research outputs found
Infrared Image Enhancement and Human Detection Performance Measures
No full textThe ability to detect and recognise dangerous objects at a safe distance is a very important task in a number of defence, police and security applications. In this paper, we look at ways of increasing the effectiveness of infrared imagery for object recognition through processes such as super-resolution image reconstruction and deconvolution methods. In this paper, we propose two techniques for assessing image quality improvement: operator assessment and edge detection; and report on some initial work recently undertaken.K. Hanton, J. Sunde, M. Butavicius, V. Gluscevi
Feline infectious peritonitis epizootic caused by a recombinant coronavirus
No full textWarr, A., O'Shea, M., Fletcher, S., Hanton, A. J., Lycett, S., & Tait-Burkard, C. (2025). Feline infectious peritonitis epizootic caused by a recombinant coronavirus [Data set]. Zenodo. https://doi.org/10.5281/zenodo.1547047
The mainstream primary classroom as a language-learning environment for children with severe and persistent language impairment - implications of recent language intervention research
No full textMany UK children with severe and persistent language impairment (SLI) attend local mainstream schools. Although this should provide an excellent language-learning environment, opportunities may be limited by difficulties in sustaining time-consuming, child-specific learning activities; restricted co-professional working, and the complex classroom environment. Two language intervention studies in mainstream Scottish primary schools showed children with SLI receiving intervention from speech and language therapists (SLTs) or their assistants made more progress in expressive language than similar children receiving intervention from education staff. Potential reasons for this difference are sought in the amount of tailored language-learning activity undertaken; how actively school staff initiated contact with SLTs; and the language demands of the classroom. Tailored language learning appears to be a differentiating factor. A language support model, reflecting views of teachers and SLTs about encouraging language development for children with SLI within the ecology of the mainstream primary classroom, is also outlined
Articoli CORPUS e HOMO e partecipazione a tutti gli altri (passim)
No full textSi tratta di opera e più mani: gli altri autori sono R. Bastardas i Rufat, E. Buchi, A.M. Cano Gonzalez, J-P. Chambon, J. Germain, Ch. Hanton, D. Kremer, C. Maas Chauveau, E. Piquer, B. Schmid, D. Tomescu
Improving infrared images for standoff object detection
No full textThe ability to detect dangerous objects (such as improvised explosive devices) from a distance is important in security and military environments. Standoff imaging can produce images that have been degraded by atmospheric turbulence, movement, blurring and other factors. The number and size of pixels in the imaging sensor can also contribute to image degradation through under-sampling of the image. Establishing processes that enhance degraded or under-sampled infrared images so that objects of interest can be recognised with more certainty is important. Super-resolution image reconstruction and deconvolution methods are explored, as well as performance improvement measures.Katherine Hanton, Marcus Butavicius, Ray Johnson and Jadranka Sund
Progressing measurement in mental toughness: a response to Clough, Earley, Perry and Crust
No full textThe measurement of mental toughness, which has gained increased popularity among scholars in the past decade, is an area of research that has typically lacked a synergy between theory and method. In a psychometric examination of the Mental Toughness Questionnaire-48 (MTQ48; Clough, Earle, & Sewell, 2002), Gucciardi, Hanton, and Mallett (2012) proposed several issues that can arise when theory is disconnected from method commensurate with current best practice. Clough, Earle, Perry, and Crust (2012) offered a critical commentary of the authors’ work, citing both substantive (e.g., inadequate literature review) and methodological (e.g., inappropriate samples) issues that they argued limited its contribution to progressing mental toughness measurement. In this article, we respond to these claims by drawing from theory and research. Although these discussions center on the MTQ48, we believe many of the issues have relevance to scholars and practitioners interested in the measurement of psychological variables as they pertain to sport, exercise, and other performance or achievement contexts
Sc(iii) complexes with neutral N3- and SNS-donor ligands – a spectroscopic study of the activation of ethene polymerisation catalysts
No full textScandium trichloride complexes with tridentate N-3- and S2N-donor ligands (L-3) have been synthesised and characterised by IR, H-1, C-13{H-1} and Sc-45 NMR spectroscopy, microanalysis, and solid state and solution XAFS spectroscopy. Catalytic testing of a subset of these complexes with ethene has been undertaken in chlorobenzene with MMAO-3A and PMAO-IP at 60 degrees C and 40 bar ethene, giving low activity ethene polymerisation. The reactions of these complexes with MeLi and AlMe3 were studied by H-1, C-13{H-1}, Al-27 and Sc-45 NMR spectroscopy and in situ via Sc K-edge XAFS spectroscopy. Three or four mol. equivalents of MeLi react with [ScCl3(Me-3-tacn)] in THF solution to form [ScMe3(Me-3-tacn)] cleanly, while complexes of type [ScCl3(R-SNS)] {R-SNS = HN(CH2CH2SC10H21)(2)} form two different species proposed to be [ScMe3(R-SN(Li)S)] and [ScMe2(R-SN-S)]. In contrast, in situ Sc-45 NMR and Sc K-edge XAFS spectroscopic studies of the reaction of [ScCl3(Me-3-tacn)] with 10 mol. equivalents of AlMe3 strongly suggest that alkylation at the Sc(III) centre does not occur, instead retaining the Cl3N3 coordination environment and most likely forming Sc-Cl-AlMe3 bridging interactions. Similar studies on [ScCl3(decyl-SNS)] with 10 mol. equivalents of AlMe3 are also consistent with this, indicating that alkylation at the Sc centre does not occur except in the presence of co-catalyst [Ph3C][Al{OC(CF3)(3)}(4)] and the alpha-alkene, hex-1-ene
2-D Coordination Polymers of Hexa(4-cyanophenyl)[3]-radialene and Silver(I): Anion (.)(.)(.) pi-Interactions and Radialene C-H(.)(.)(.)Anion Hydrogen Bonds in the Solid-State Interactions of Hexaaryl[3]-radialenes with Anions
No full textAs part of our studies of ligands containing an electron-deficient [3]-radialene core we discovered that the hexadentate ligand hexa(4-cyanophenyl)[3]-radialene 1 forms 6,3-connected 2-D coordination polymers on reaction with silver(I). Compounds {[Ag(1)](PF6) · 2(CH3NO2)}n 2 and {[Ag(1)](ClO4) · 2(CH3NO2)}n 3, which are the first coordination polymers of 1, readily crystallize from solutions of the silver salt and 1 in noncoordinating nitromethane solvent and were characterized by X-ray crystallography. In these structures the ligand is hypodentate, coordinating only through four nitrile N-donors to act as a 3-connecting center. The distorted tetrahedral silver also acts as a 3-connecting center. In the extended structure the anions lie in pockets above and below the [3]-radialene core of the ligands, forming moderate and weak hydrogen bonds with four different molecules of 1. The anions are in close proximity to the electron-deficient [3]-radialene core of 1, forming weak anion-π interactions.Courtney A. Hollis, Lyall R. Hanton, Jonathan C. Morris, and Christopher J. Sumb
Synthesis and characterization of chitosan/dextran-based hydrogels for surgical use
No full textAbstractA series of hydrogels were formed from the reaction between an amine functionalized succinyl chitosan and an oxidized dextran. The properties and rate of formation of the gel were related to both the amine and aldehyde levels of the precursors. These levels could be readily changed by altering the reaction conditions, and allowed good control of the gel properties. Oxidation of the dextran with periodate was accompanied by chain scission and a large reduction in molecular weight. The gel showed excellent haemostatic properties and reduction of adhesions in animal models.G. Liu, Z. Shi, T. Kuriger, L.R. Hanton, J. Simpson, S.C. Moratti, B.H. Robinson, T. Athanasiadis, R. Valentine, P.J. Wormald, S. Robinso
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