My research interests are centred on the synthesis, structure, and applications of:
- Lewis acidity of organoborates/organosilicates.
- Polyborate salts.
Several novel isolated polyborate species have been discovered as a result of crystal engineering from cation templated self-assembly in aqueous solution and a NMR method for measuring Lewis acidity has been established.
Top Cited Publications
A convenient NMR method for the measurement of Lewis acidity at boron centres: correlation of reaction rates of Lewis acid initiated epoxide polymerizations with Lewis acidity, M.A. Beckett, G.C. Strickland, J.R. Holland, and K.S. Varma, Polymer, 1996, 37, 4629-4631. [172 citations].
Lewis acidity of tris(pentafluorophenyl)borane: crystal and molecular structure of B(C6F5)3.OPEt3, M.A. Beckett, D.S. Brassington, S.J. Coles, and M.B. Hursthouse, Inorg. Chem. Commun., 2000, 3, 530-533. [126 citations].
Specific areas of recent interest:
1. Polyborate chemistry with transition metal complexes or non-metal (organic) cations.
The synthesis and characterization of polyborate salts containing cationic transition-metal complexes and non-metal cations is being investigated. Transition-metal coordination compounds as cations have been chosen because of their steric bulk, high charge, and their abilty to form many H-bonds donor interactions with groups in their second coordination shell. The aim of this work is to investigate their structure directing effects and to engineer novel polyborate anions.
2. Lewis acidity measurement
Organoborates are being studied as potential Lewis acid catalysts, and 31P NMR spectroscopy is being used to measure the Lewis acidity of the organoborate species. This technique uses Et3PO as a probe molecule, and reports Gutmann's AN numbers. This Lewis acidity measurement method is often referred to as the 'Gutmann-Beckett method'.
Fellow of the Royal Society of Chemistry (RSC) and Chartered Chemist (1997) CChem, FRSC.
Fellow Higher Education Academy (1998) FHEA.
Subject Specialist Reviewer (Chemistry), Quality Assurance Agency (QAA) 2003-2004.
Appointed member of Commitee for Accreditation and Validation (CAV) for RSC 2005-2011; Vice-Chair 2010-2011.
Member of Membership and Qualifications Board (MQB) for RSC 2012-2015.
Vice-Chair Local Section (North Wales) for RSC 2011-14; Chair, 2014 -2017; member 2017-.
Member of International Advisory Committee, European Conference on boron Chemistry (Euroboron), 2012-.
Member of International Advisory Committee, International meeting on boron chemistry (Imeboron) 2013-.
Task Group Chair - Nomenclature of boron hydrides and related compounds - International Union of Pure and Applied Chemistry (IUPAC), 2013-.
Elected Titular Member (Division VIII), International Union of Pure and Applied Chemistry (IUPAC), 1 Jan 2020-31 Dec 2021, 1 Jan 2018 - 31 Dec 2019; Associate Member (Division VIII), 1 Jan 2016 - 31 Dec 2017; Titular Member 1 Jan 2014 - 31 Dec 2015; Titular Member (Division VIII), 1 Jan 2012 - 31 Dec 2013.
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Visual Analytics is analytical reasoning facilitated by interactive visual interfaces. This subgroup focuses on the investigation of analytic methods and the development of visual analysis tools that display and interact with large datasets. Building on a strong foundation of research into multiple and multiform views, we are developing a lead in this area. For instance, Bangor was a founding member of the UK Visual Analytics Consortium (UKVAC), which partners academics from Middlesex University (lead), Bangor, Imperial, Oxford and University College London. The UKVAC is working with the support of the US Department of Homeland Security via the US National Visualization and Analytics Center at Pacific Northwest National Laboratory, Washington State, and in close collaboration with the UK Home Office.
We have established research into applied visual perception, especially in the context of new display technologies and high dynamic range (HDR) imaging. The sub-group investigates how the knowledge of the human visual system and perception can be incorporated within computer graphics and imaging algorithms. This includes designing and optimization of imaging algorithms that adapt to human visual performance and viewing conditions to deliver the best images given limited resources, such as computation time or display contrast. In 2012, Mantiuk was awarded an EPSRC First Grant to quantify image quality in computer graphics (EP/I006575/1). The grant led to the development of a new comprehensive image quality metric for high dynamic range scenes (HDR-VDP-2, source code released on Open Source basis), and the creation of a quality database for computer graphics artefacts (collaboration with the Max-Planck-Institute for Computer Science, Saarbruecken, Germany). The research outcomes include several high impact publications, including two ACM SIGGRAPH (ACM Transactions on Graphics) and two Eurographics (Computer Graphics Forum) papers, as well as several conference papers.
PhD Cymraeg yn Unig
Dim Saesneg yma!
Stefan Machura studied sociology and political science at the Ruhr-Universität Bochum (Germany). His doctoral dissertation dealt with the control of state-owned enterprises. In 1992, he started teaching sociology of law, sociology and political science at the Ruhr-Universität Bochum. The perceived fairness of authorities and of procedures like court trials, lay participation in the administration of justice and the portrayal of the legal system in popular media and its effects form major aspects of his research. In 2000, he passed the second dissertation (Habilitation, Public Management) in Munich, to be followed by a Habilitation (Political Science) in Bochum in 2005.
Since 2000, Stefan Machura is one of the editors of the "Zeitschrift für Rechtssoziologie. The German Journal of Law and Society", 2010-2014 main editor (info: https://www.degruyter.com/view/j/zfrs).
With Klaus F. Röhl, Stefan Machura co-edits the book series “Society and Law / Gesellschaft und Recht” (overview: http://www.lit-verlag.de/reihe/geure).
From 2014 to 2018, Stefan Machura was on the Board of the International Sociological Association's Research Committee on Sociology of Law where he chaired the editorial board of the RCSL newsletter (archive: http://rcsl.iscte.pt/rcsl_nl.htm). The RCSL Working Group on Law and Popular Culture has elected Stefan Machura as Chair in March 2018.
Stefan Machura is board member the Sociology of Law Section in the German Sociological Association since 1998, 2000-2008 as Speaker (http://www.soziologie.de/index.php?id=275). In addition, he is a board member of the (German) Association for Law and Society “Vereinigung für Recht und Gesellschaft” (https://www.rechtssoziologie.info/).
He co-edits the Oxford Encyclopedia of Crime, Media and Popular Culture (sample articles: http://criminology.oxfordre.com/browse?t0=ORE_CRI:REFCRI003).
Research interests are related to the areas of sociology of law, political sociology, criminology and criminal justice, popular culture including mass media. Particularly interested in international and transdisciplinary research, cooperating with scholars and practitioners from various academic backgrounds and from different countries. In his research, he applies quantitative and qualitative methods.
Teaching and Administration
- SXY1007 Introduction to Criminology
- SXY2004 Crime & the Media
- SXU4016 MA Dissertation
- SXU4020 Social Science in Action
- SXY4015 Key Issues in Criminology
- Third year coordinator for the school (2020/21).
Most of my current research is developed in partnership with end users (e.g. British Indian Ocean Territory Government Section of Foreign and Commonwealth Office; Cayman Islands Government; Seychelles Island Foundation; The Nature Conservancy, USA). Recently, my research has focussed on coral reefs of the UK Overseas Territories, and research strategy is driven by the need to protect marine environments largely through the establishment and monitoring of Marine Protected Areas, or use of tools such as Environmental Impact Assessment and Coastal Zone Management, often to comply with the major conventions (e.g. Convention on Biological Diversity CBD, Convention on Migratory Species CMS, Convention on Trade in Endangered Species CITES, RAMSAR Convention on wetlands, and EU Habitats Directive. Projects are generally established through links with leading scientists with complementary interests, and through liaison with stakeholder organisations (e.g. UK Overseas Territories Conservation Forum, BIOT Scientific Advisory Panel, Chagos Conservation Trust, UNESCO) and implemented through practical research overseas involving scientific diving operations, training, stakeholder consultations and outreach initiatives, often including placement of Project Support Officers to build capacity within organisations. I am a member of the DEFRA Darwin Initiative panel of the Darwin Plus Advisory Group for the British Overseas Territories.
My teaching is research led; I generally teach areas linked to my research and use real world examples and case studies drawn from my own experience wherever possible to illustrate the subject. I use underwater photography and use my own images rather than those mined from the internet. My philosophy is that subjects can be made more interesting if drawn from personal involvement. I also believe that we must be aware of shifting baselines and we should also look at earlier studies because direct human impact and climate change have affected many of the ecosystems we study today. For example, many coral reefs close to human populations are very degraded and describing them in their current state would be like describing a forest after being slashed and burned – you often have to look at original descriptions and early studies to see them functionally intact! I developed the MSc course in Marine Environmental Protection and ran this successfully for 23 years, enjoying the international perspective it provided and working with the many excellent students it attracted. I continue to offer overseas project placements with colleagues in the Department of the Environment in the Cayman Islands to provide research opportunities with a direct application in marine conservation.
Potential postgraduate research students should write to Prof Turner with a covering letter explaining their experience and motivation, and a CV. Supervision will be considered in the following areas: Tropical Marine Ecology; Subtidal Marine Biology, Coral Reefs and Associated Ecosystems, Marine Protected Areas, Coastal Zone Management; Marine Conservation in UK Overseas Territories, Marine Invertebrate Symbiosis with Zooxanthellae, Behavioural Ecology of Sentinel Marine Species'
OSX4002 Coastal Habitat Ecology and Survey
OSX4004 Marine Environmental Impact Assessment (Module Organiser)
OSX4006 Conservation and Coastal Zone Management
OSX4008 Research Project Design and Planning
OSX4009 Research Project
OSX4401 Literature Review and Project Plan
OSX4405 Research Project Investigation
OSX3001 Marine Conservation and Exploitation (Module Organiser)
OSX3011 Extreme Marine Habitats (Coral Reefs and Climate Change)
OSX2009 Marine Ecology
OSX2003 Marine Biology Practical II: Echinoderms (currently being covered)
OSX2003 Marine Biology Practical II: Cnidaria Photo-respiration(currently being covered)
OSX1000 Tutorial (currently being covered)
OSX1002 Marine Biology Practical (Taxonomy) (currently being covered)