Dr Damian Farnell
Senior Lecturer in Medical Statistics
- Available for postgraduate supervision
Overview
Overview:
I am a senior lecturer of applied mathematics in dentistry at the School of Dentistry at Cardiff University, UK, and I am the module leader for two postgraduate courses on "Research Methods" (DET031) and "Postgraduate Dental Professionalism" in the School of Dentistry. I provide research advice and statistical consultancy for projects in the School of Dentistry.
Research Interests:
- Medical imaging and image processing
- Medical and dental research: epidemiology & statistical analysis of laboratory and clinical studies data
- Mathematical Biology
- Quantum magnetism, especially “frustrated” magnetic systems
Books:
An Introduction to Lattice Quantum Spin Systems by JB Parkinson and DJJ Farnell. Lecture Notes in Physics Vol. 816. Written by J.B. Parkinson and D.J.J. Farnell. (Springer Verlag, Heidelberg, 2010). (Softcover ISBN: 978-3-642-13289-6).
Quantum Magnetism. Lecture Notes in Physics Vol. 645, U Schollwoeck, J Richter, DJJ Farnell, and RF Bishop, (Editors), (Springer Verlag, Heidelberg, 2004). (Hardcover ISBN: 3-540-21422-4. Softcover from 2010: ISBN: 978-3642059766)
Coupled Cluster Method Theories of Quantum Magnetism, RF Bishop, PHY Li, DJJ Farnell, and R Zinke. Accepted for publication in the Springer series: Solid State Science. (To be published in 2021/22.)
Biography
Qualifications
- PhD entitled “Integrable and Non-Integrable Quantum Arrays” (1994) University of Manchester Institute for Science and Technology (UMIST), UK.
- BSc (1st) on Mathematical Physics (1991) University of Manchester Institute for Science and Technology (UMIST), UK.
Honours and awards
- Jesse H. Shera Award for Distinguished Published Research by the Library Research Round Table of the American Library Association for a systematic review of information literacy programs in higher education: Effects of face-to-face, online and blended formats on student skills and views. Alison L. Weightman, Delyth Morris, Heather Strange, Gillian Hallam, Damian J.J. Farnell (Evidence Based Library and Information Practice 12.3, 20-55 (2017)). See the Twitter announcement here.
- Poster prize at the Wilhelm und Else Heraeus-Seminar entitled ‘Quantum Magnetism in Low Spatial Dimensions’ (2012).
- Course prize. Undergraduate degree Mathematical Physics (1991) UMIST, UK.
Professional memberships
- Institute of Physics (MInstP)
- Institute of Physics and Engineering in Medicine (MIPEM)
- London Mathematical Society
- Wales Institute of Mathematical and Computational Sciences
- Molecular Magnetism Web
Academic positions
- From 2014-present: Lecturer/Senior lecturer of Applied Mathematics in Dentistry, School of Dentistry, Cardiff University, UK.
- 2011-2014: Senior Lecturer in Mathematics, University of South Wales, UK.
- 2007-2011: Research Statistician, University of Manchester, UK.
- 2003-2006: Lecturer in Ophthalmic Imaging, St. Paul’s Eye Unit + University of Liverpool, UK.
- 1995-2003: Post-doctoral researcher (theoretical physics and medical research).
- 1994-1995: Software engineer, Logica UK Ltd.
Committees and reviewing
Committees:
- Dental Research Ethics Committee
- Dental Toothbank Committee
- Dental Postgraduate Research Committee
- College Data Strategy Committee
- College Training & Research Support Group
- MSc Dental Subject Boards
Reviewing:
- Journal reviewer, e.g., for: Frontiers of Physics; Journal of Physics Communications; Computer Methods and Programs in Biomedicine; Journal of Dental and Oral Health; Journal of Emergencies Medicine; Community Dental Health; Journal of Physics: Condensed Matter; etc.
- Grant reviewer.
Publications
2021
- Williams, A.et al. 2021. Higher number of EBI3 cells in mucosal chronic hyperplastic candidiasis may serve to regulate IL-17 producing cells. Journal of Fungi 7(7), article number: 533. (10.3390/jof7070533)
- Farnell, D. J. J.et al. 2021. An exploration of adolescent facial shape changes with age via multilevel partial least squares regression. Computer Methods and Programs in Biomedicine 200, article number: 105935. (10.1016/j.cmpb.2021.105935)
- Harrop, E.et al. 2021. End of life and bereavement experiences during the COVID-19 pandemic: interim results from a national survey of bereaved people. Presented at: Palliative Care Congress 2021, Virtual, 25-26 March 2021, Vol. 11. Vol. Supple. BMJ Publishing Group pp. A3., (10.1136/spcare-2021-PCC.6)
- Carey, E. C.et al. 2021. The effects of age and sex on mandibular bone graft donor sites. Oral Surgery 14(1), pp. 52-58. (10.1111/ORS.12535)
- Mohd Nor, N. A.et al. 2021. Factors associated with dental fluorosis amongst Malaysian children exposed to different fluoride concentrations in the public water supply. Journal of Public Health Dentistry (10.1111/jphd.12448)
- Perry, J.et al. 2021. Professional consensus on orthodontic risks - what orthodontists should tell their patients. American Journal of Orthodontics and Dentofacial Orthopedics 159(1), pp. 41-52. (10.1016/j.ajodo.2019.11.017)
2020
- Mohd Nor, N. A.et al. 2020. The impact of stopping or reducing the level of fluoride in public water supplies on dental fluorosis: a systematic review. Reviews on Environmental Health 35(4), pp. 419-426. (10.1515/reveh-2019-0059)
- Farnell, D. J. J.et al. 2020. Initial Investigations of the cranial size and shape of adult Eurasian otters (Lutra lutra) in Great Britain. Journal of Imaging 6(10), article number: 106. (10.3390/jimaging6100106)
- Almershed, N.et al. 2020. The use of non-surgical interventions in patients with periimplantitis; a systematic review and meta-analysis. Oral Surgery 14(2), pp. 178-190. (10.1111/ors.12548)
- Virdee, S. S.et al. 2020. The influence of irrigant activation, concentration and contact time on sodium hypochlorite penetration into root dentine: an ex vivo experiment. International Endodontic Journal 53(7), pp. 986-997. (10.1111/iej.13290)
- Farnell, D. J.et al. 2020. Multilevel principal components analysis of three-dimensional facial growth in adolescents. Computer Methods and Programs in Biomedicine 188, article number: 105272. (10.1016/j.cmpb.2019.105272)
- Galloway, J.et al. 2020. Multilevel analysis of the influence of maternal smoking and alcohol consumption on the facial shape of English adolescents. Journal of Imaging 6(5), pp. 101-113., article number: 34. (10.3390/jimaging6050034)
- Key, T.et al. 2020. Personal protective equipment during the COVID-19 crisis: a snapshot and recommendations from the frontline of a university teaching hospital. Bone and Joint Open 1(5) (10.1302/2046-3758.15.BJO-2020-0027.R1)
- Drage, N., Atkin, P. and Farnell, D. J. J. 2020. Dental and maxillofacial radiology: confidence, knowledge and skills in the newly graduated dentist. British Dental Journal 228, pp. 546-550. (10.1038/s41415-020-1425-x)
- Farnell, D.et al. 2020. The ALERT-B questionnaire: a screening tool for the detection of gastroenterological late effects after radiotherapy for prostate cancer. Clinical and Translational Radiation Oncology 21, pp. 98-103. (10.1016/j.ctro.2020.02.002)
- Mousavi, S.et al. 2020. Effect of magnesium sulphate added to lidocaine on inferior alveolar nerve block success in patients with symptoms of irreversible pulpitis: a prospective, randomized clinical trial. International Endodontic Journal 53(2), pp. 145-153. (10.1111/iej.13186)
- Farnell, D. J.et al. 2020. Multilevel models of age-related changes in facial shape in adolescents. Presented at: Annual Conference on Medical Image Understanding and Analysis, Liverpool, UK, 24-26 July 2019Medical Image Understanding and Analysis. Communications in Computer and Information Science Springer Verlag pp. -., (10.1007/978-3-030-39343-4_9)
2019
- Williams, A.et al. 2019. Immunohistochemical expression patterns of inflammatory cells involved in Chronic Hyperplastic Candidosis. Pathogens 8(4), article number: 232. (10.3390/pathogens8040232)
- Mohd Nor, N. A.et al. 2019. The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas. Community Dental Health 36(3), pp. 229-236. (10.1922/CDH_4522Nor08)
- Jack, A. A.et al. 2019. Cellulose nanofibril formulations incorporating a low molecular weight alginate oligosaccharide modify bacterial biofilm development. Biomacromolecules 20(8), pp. 2953-2961. (10.1021/acs.biomac.9b00522)
- Farnell, D., Bishop, R. and Richter, J. 2019. Non-coplanar model states in quantum magnetism applications of the high-order coupled cluster method. Journal of Statistical Physics 176(1), pp. 180-213. (10.1007/s10955-019-02297-1)
- Koshy, B.et al. 2019. Array analysis for T-cell associated cytokines in gingival crevicular fluid: Identifying altered profiles associated with periodontal disease status. Journal of Dentistry 85, pp. 39-46. (10.1016/j.jdent.2019.04.009)
- Farnell, D. 2019. Emergence of magnetic order in the kagome antiferromagnets. Frontiers of Physics 14(2), article number: 23302. (10.1007/s11467-019-0886-3)
2018
- Farnell, D. J. J.et al. 2018. What's in a smile? Initial analyses of dynamic changes in facial shape and appearance. Journal of Imaging 5(1), article number: 2. (10.3390/jimaging5010002)
- Farnell, D.et al. 2018. Interplay between lattice topology, frustration, and spin quantum number in quantum antiferromagnets on Archimedean lattices. Physical Review B 98(22), article number: 224402. (10.1103/PhysRevB.98.224402)
- Drage, N. A., Greenall, C. and Farnell, D. J. J. 2018. Ultrasound-guided fine-needle aspiration cytology of lesions in the head and neck performed without local anaesthesia – An analysis of pain perception. Ultrasound 26(4), pp. 222-228. (10.1177/1742271X18780137)
- Mohd Nor, N. A.et al. 2018. The impact of a reduction in fluoride concentration in the Malaysian water supply on the prevalence of fluorosis and dental caries. Community Dentistry and Oral Epidemiology 46(5), pp. 492-499. (10.1111/cdoe.12407)
- Farnell, D. J.et al. 2018. What’s in a Smile? Initial results of multilevel principal components analysis of facial shape and image texture. In: Nixon, M., Mahmoodi, S. and Zwiggelaar, R. eds. Medical Image Understanding and Analysis: 22nd Conference, MIUA 2018, Southampton, UK, July 9-11, 2018, Proceedings. Communications in Computer and Information Science Springer, pp. 177-188., (10.1007/978-3-319-95921-4_18)
- Al-Kadhim, K. A. H.et al. 2018. Surgical therapy for peri-implantitis management: a systematic review and meta-analysis. Oral Surgery 11(3), pp. 200-212. (10.1111/ors.12344)
- Lynch, C.et al. 2018. No more amalgams: Use of amalgam and amalgam alternative materials in primary dental. British Dental Journal 225, pp. 171-176. (10.1038/sj.bdj.2018.538)
- Richmond, S.et al. 2018. Factors influencing facial shape. In: Evidence‐Based Orthodontics. Wiley, pp. 69-81., (10.1002/9781119289999.ch6)
- Al Masan, A.et al. 2018. Antibiotic-prescribing for endodontic therapies: a comparative survey between general dental practitioners (GDPs) and final-year Bachelor of Dental Surgery (BDS) students in Cardiff, UK. International Endodontic Journal 51(7), pp. 717-728. (10.1111/iej.12887)
- Virdee, S. S.et al. 2018. Efficacy of irrigant activation techniques in removing intracanal smear layer and debris from mature permanent teeth: a systematic review and meta-analysis. International Endodontic Journal 51(6), pp. 605-621. (10.1111/iej.12877)
- Adams, R.et al. 2018. A radiographic analysis of anatomical variation at the mandibular of intraoral bone harvesting. Oral Surgery 11(2), pp. 105-111. (10.1111/ors.12304)
- Sivarajasingam, V.et al. 2018. Violence in England and Wales in 2017: An Accident and Emergency perspective. Cardiff: Cardiff University. Available at: https://www.cardiff.ac.uk/__data/assets/pdf_file/0019/1162414/National-Violence-Surveillance-Network-Report-2017.pdf
2017
- Amanda, L.et al. 2017. An investigation in to the impact of acquisition location on error type and rate when undertaking panoramic radiography. Radiography 23(4), pp. 305-309. (10.1016/j.radi.2017.07.004)
- Virdee, S.et al. 2017. Efficacy of irrigant activation techniques in removing intracanal smear layer and debris from mature permanent teeth: a systematic review and meta-analysis [Abstract]. International Endodontic Journal 50(S1), pp. 3-56. (10.1111/iej.12813)
- Weightman, A.et al. 2017. A systematic review of information literacy programs in higher education: effects of faceto- face, online, and blended formats on student skills and views. Evidence Based Library and Information Practice 12(3), pp. 20-55. (10.18438/B86W90)
- Amin A.H., A., Dummer, P. and Farnell, D. 2017. A comparative study of ProTaper Universal and ProTaper Next used by undergraduate students to prepare root canals. Journal of Endodontics 43(8), pp. 1364-1369. (10.1016/j.joen.2017.03.038)
- Farnell, D.et al. 2017. Initial results of multilevel principal components analysis of facial shape. Presented at: MIUA 2017: Annual Conference on Medical Image Understanding and Analysis, Edinburgh, UK, 11-13 July 2017 Presented at Valdes Hernandez, M. and Gonzalez Castro, V. eds.Medical Image Understanding and Analysis, Vol. 723. Communications in Computer and Information Science Cham: Springer pp. 674-685., (10.1007/978-3-319-60964-5_59)
- Aleksenko, L.et al. 2017. Maternal demographic and placental risk factors in term low birth weight in Ghana. Journal of Pregnancy and Child Health 4(3), article number: 1000325. (10.4172/2376-127X.1000325)
- Cockle, K.et al. 2017. The EAGLE study: improving the wellbeing of men by evaluating and addressing the gastrointestinal late effects of radical treatment for prostate cancer.. Presented at: 4th International Clinical Trials Methodology Conference (ICTMC) and the 38th Annual Meeting of the Society for Clinical Trials, Liverpool, UK., 07–10 May 2017Trials, Vol. 18(S1). Vol. P294. BioMed Central pp. 111-112., (10.1186/s13063-017-1902-y)
- Bishop, R. F.et al. 2017. The spin-half XXZ antiferromagnet on the square lattice revisited: A high-order coupled cluster treatment. Journal of Magnetism and Magnetic Materials 428, pp. 178-188. (10.1016/j.jmmm.2016.11.043)
2016
- Taylor, S.et al. 2016. The three-item ALERT-B questionnaire provides a validated screening tool to detect chronic gastrointestinal symptoms after pelvic radiotherapy in cancer survivors. Clinical Oncology 28(10), pp. e139-e147. (10.1016/j.clon.2016.06.004)
- Taylor, S.et al. 2016. Improving the well-being of men by Evaluating and Addressing the Gastrointestinal Late Effects (EAGLE) of radical treatment for prostate cancer: study protocol for a mixed-method implementation project. British Medical Journal Open 6(10), article number: e011773. (10.1136/bmjopen-2016-011773)
- Popat, H., Thomas, K. and Farnell, D. J. J. 2016. Management of orthodontic emergencies in primary care – self-reported confidence of general dental practitioners. British Dental Journal 221, pp. 21-24. (10.1038/sj.bdj.2016.495)
- Farnell, D. J. J., Popat, H. and Richmond, S. 2016. Multilevel principal component analysis (mPCA) in shape analysis: a feasibility study in medical and dental imaging. Computer Methods and Programs in Biomedicine 129, pp. 149-159. (10.1016/j.cmpb.2016.01.005)
- Farnell, D., Richter, J. and Oliver, G. 2016. Ground-state ordering of the J1 - J2 model on the simple cubic and body-centered cubic lattices. Physical Review B 93, article number: 235123. (10.1103/PhysRevB.93.235123)
- Taylor, S. E.et al. 2016. Late effects of pelvic radiation treatment (EAGLE study) [Abstract]. Journal of Clinical Oncology 34(3), pp. 159. (10.1200/jco.2016.34.3_suppl.159)
- Goetze, O.et al. 2016. Ground-state properties of the triangular-lattice Heisenberg antiferromagnet with arbitrary spin quantum number s. Journal of Magnetism and Magnetic Materials 397, pp. 333-341. (10.1016/j.jmmm.2015.08.113)
2015
- Robson, N.et al. 2015. Effectiveness of an audience response system on orthodontic knowledge retention of undergraduate dental students - a randomised control trial. Journal of Orthodontics 42(4), pp. 307-314., article number: 1465313315Y.000. (10.1179/1465313315Y.0000000012)
- Johnson, I. G.et al. 2015. Approaches for adult nursing and residential care homes on promoting oral health, preventing dental health problems and ensuring access to dental treatment: Draft Review 3: Barriers and Facilitators. Project Report. [Online]. Cardiff: Cardiff University. Available at: https://www.nice.org.uk/guidance/GID-PHG62/documents/evidence-review-4
- Morgan, F.et al. 2015. Approaches for adult nursing and residential care homes on promoting oral health, preventing dental health problems and ensuring access to dental treatment. Draft Review 2: Best Practice. Project Report. [Online]. Cardiff: Cardiff University. Available at: https://www.nice.org.uk/guidance/GID-PHG62/documents/evidence-review-3
- Weightman, A. L.et al. 2015. Approaches for adult nursing and residential care homes on promoting oral health, preventing dental health problems and ensuring access to dental treatment. Draft Review 1: Effectiveness. Project Report. [Online]. Cardiff: Cardiff University. Available at: https://www.nice.org.uk/guidance/GID-PHG62/documents/evidence-review
- Richter, J., Zinke, R. and Farnell, D. J. J. 2015. The spin-1/2 square-lattice J1-J2 model: the spin-gap. European Physical Journal B Condensed Matter Physics 88(2), pp. 1-6. (10.1140/epjb/e2014-50589-x)
- Weightman, A. L.et al. 2015. Information literacy teaching in Universities - a systematic review of evaluation studies: Preliminary findings for online versus traditional methods. Presented at: Evidence Based Library and Information Practice Conference (EBLIP8), Brisben, Queensland, Australia, 6-8 July 2015.
2014
- Farnell, D. J. J.et al. 2014. Quantum s=1/2 antiferromagnets on Archimedean lattices: The route from semiclassical magnetic order to nonmagnetic quantum states. Physical Review B: Condensed Matter and Materials Physics 89(18), article number: 184407. (10.1103/PhysRevB.89.184407)
- Little, A., Farnell, D. J. J. and Jones, M. 2014. Evaluation of a questionnaire to measure the impact of mathematics masterclasses at the University of South Wales. Working paper. Unpublished.
2013
- Richter, J.et al. 2013. The magnetization process of the spin-one triangular-lattice Heisenberg antiferromagnet. Journal of the Physical Society of Japan 82(1), article number: 15002. (10.7566/JPSJ.82.015002)
2012
- Li, P. H. Y.et al. 2012. Spin-1/2 Heisenberg antiferromagnet on an anisotropic kagome lattice. Physical Review B: Condensed Matter and Materials Physics 86, article number: 214403.
- Li, P. H. Y.et al. 2012. Phase diagram of a frustrated Heisenberg antiferromagnet on the honeycomb lattice: The J(1)-J(2)-J(3) model. Physical Review B: Condensed Matter and Materials Physics 86(14), article number: 144404. (10.1103/PhysRevB.86.144404)
- Bishop, R. F.et al. 2012. The frustrated Heisenberg antiferromagnet on the honeycomb lattice: J(1)-J(2) model. Journal of Physics: Condensed Matter 24(23), article number: 236002. (10.1088/0953-8984/24/23/236002)
- Barraclough, L. H.et al. 2012. Prospective analysis of patient-reported late toxicity following pelvic radiotherapy for gynaecological cancer. Radiotherapy and Oncology 103(3), pp. 327-332. (10.1016/j.radonc.2012.04.018)
- Bishop, R. F.et al. 2012. Frustrated Heisenberg antiferromagnet on the checkerboard lattice: J(1)-J(2) model. Physical Review B: Condensed Matter and Materials Physics 85(20), article number: 205122. (10.1103/PhysRevB.85.205122)
2011
- Goetze, O.et al. 2011. Heisenberg antiferromagnet on the kagome lattice with arbitrary spin: A higher-order coupled cluster treatment. Physical Review B: Condensed Matter and Materials Physics 84(22), article number: 224428. (10.1103/PhysRevB.84.224428)
- Farnell, D. J. J., Pickles, A. and Roberts, C. 2011. Measurement error in statistical models of shape. Computer Methods and Programs in Biomedicine 104(3), pp. E29-E44., article number: http://dx.doi.org/10.1016/j.cmpb.2011.04.002. (10.1016/j.cmpb.2011.04.002)
- Farnell, D. J. J.et al. 2011. Spin-half Heisenberg antiferromagnet on two archimedian lattices: From the bounce lattice to the maple-leaf lattice and beyond. Physical Review B: Condensed Matter and Materials Physics 84(10), article number: 104406. (10.1103/PhysRevB.84.104406)
- Farnell, D. J. J.et al. 2011. Frustrated Heisenberg antiferromagnet on the honeycomb lattice: A candidate for deconfined quantum criticality. Physical Review B: Condensed Matter and Materials Physics 84(1), article number: 12403. (10.1103/PhysRevB.84.012403)
- Bishop, R. F.et al. 2011. ERRATUM: magnetic ordering of antiferromagnets on a spatially anisotropic triangular lattice. International Journal of Modern Physics B 25(20), pp. 2787-2788. (10.1142/S0217979211059000)
2010
- Ho, K. F.et al. 2010. Comparison of patient-reported late treatment toxicity (LENT-SOMA) with quality of life (EORTC QLQ-C30 and QLQ-H&N35) assessment after head and neck radiotherapy. Radiotherapy and Oncology 97(2), pp. 270-275. (10.1016/j.radonc.2010.01.017)
- Bishop, R. F.et al. 2010. Magnetic ordering of antiferromagnets on a spatially anisotropic triangular lattice. International Journal of Modern Physics B 24(25-26), pp. 5011-5026. (10.1142/S021797921005716X)
- Farnell, D. J. J.et al. 2010. Development of a patient-reported questionnaire for collecting toxicity data following prostate brachytherapy. Radiotherapy and Oncology 97(1), pp. 136-142.
- Bishop, R. F.et al. 2010. Magnetic order in a spin-1/2 interpolating kagome/square Heisenberg antiferromagnet. Physical Review B: Condensed Matter and Materials Physics 82(10), article number: 104406. (10.1103/PhysRevB.82.104406)
- Bishop, R. F.et al. 2010. Magnetic order on a frustrated spin-1/2 Heisenberg antiferromagnet on the Union Jack lattice. Physical Review B: Condensed Matter and Materials Physics 82(2), article number: 24416. (10.1103/PhysRevB.82.024416)
- Richter, J.et al. 2010. Frustrated spin-1/2 J(1)-J(2) Heisenberg ferromagnet on the square lattice studied via exact diagonalization and coupled-cluster method. Physical Review B: Condensed Matter and Materials Physics 81(17), article number: 174429. (10.1103/PhysRevB.81.174429)
- Mehta, J.et al. 2010. Perception of tilt following counter-rotation surgery. Clinical and Experimental Ophthalmology 38(3), pp. 284-291. (10.1111/j.1442-9071.2010.02235.x)
- Farnell, D. J. J.et al. 2010. Efficacy of data capture for patient-reported toxicity following radiotherapy for prostate or cervical cancer. European Journal of Cancer 46(3), pp. 534-540.
- Farnell, D. J. J. and Parkinson, J. 2010. An introduction to quantum spin systems. Lecture Notes in Physics Vol. 816. Springer Verlag. (10.1007/978-3-642-13290-2)
2009
- Farnell, D. J. J.et al. 2009. High-order coupled cluster method study of frustrated and unfrustrated quantum magnets in external magnetic fields. Journal of Physics: Condensed Matter 21(40), article number: 406002. (10.1088/0953-8984/21/40/406002)
- Ho, K. F.et al. 2009. Developing a CTCAEs patient questionnaire for late toxicity after head and neck radiotherapy. European Journal of Cancer 45(11), pp. 1992-1998., article number: http://dx.doi.org/10.1016/j.ejca.2009.04.010. (10.1016/j.ejca.2009.04.010)
- Barker, C. L.et al. 2009. The impact of radiotherapy late effects on quality of life in gynaecological cancer patients. British Journal of Cancer 100(10), pp. 1558-1565. (10.1038/sj.bjc.6605050)
- Bishop, R. F.et al. 2009. Magnetic order in a spin-1/2 interpolating square-triangle Heisenberg antiferromagnet. Physical Review B: Condensed Matter and Materials Physics 79(17), article number: 174405. (10.1103/PhysRevB.79.174405)
- Farnell, D. J. J.et al. 2009. High-Order Coupled Cluster Method (CCM) calculations for quantum magnets with valence-bond ground states. Journal of Statistical Physics 135(1), pp. 175-198. (10.1007/s10955-009-9703-7)
- Farnell, D. J. J. 2009. High-order coupled cluster method calculations of spontaneous symmetry breaking in the spin-half one-dimensional J(1)-J(2) model. Condensed Matter Physics 12(3), pp. 411-428. (10.5488/CMP.12.3.411)
2008
- Farnell, D. J. J.et al. 2008. Enhancement of blood vessels in digital fundus photographs via the application of multiscale line operators. Journal of the Franklin Institute 345(7), pp. 748-765. (10.1016/j.jfranklin.2008.04.009)
- Farnell, D. J. J. and Bishop, R. F. 2008. Odd and even behavior with LSUBm approximation level in high-order coupled cluster method (CCM) calculations. International Journal of Modern Physics B 22(20), pp. 3369-3379. (10.1142/S021797920803999X)
- Wong, D.et al. 2008. Macular translocation surgery: computer simulation of visual perception. Graefe's Archive for Clinical and Experimental Ophthalmology 246(6), pp. 831-836. (10.1007/s00417-008-0771-1)
2007
- Allen, P. D.et al. 2007. Detecting reduced bone mineral density from dental radiographs using statistical shape models. Ieee Transactions on Information Technology in Biomedicine 11(6), pp. 601-610. (10.1109/TITB.2006.888704)
- Cracknell, K. P. B., Farnell, D. J. J. and Grierson, I. 2007. Monte Carlo simulation of latanoprost induced iris darkening. Computer Methods and Programs in Biomedicine 87(2), pp. 93-103. (10.1016/j.cmpb.2007.04.010)
- Allen, P. D.et al. 2007. Detecting osteoporosis from dental radiographs using active shape models. Presented at: Biomedical Imaging: From Nano to Macro, 2007. ISBI 2007. 4th IEEE International Symposium, Arlington, VA, 12-15 April 2007Biomedical Imaging: From Nano to Macro, 2007. ISBI 2007. 4th IEEE International Symposium. pp. 1256-1259., (10.1109/ISBI.2007.357087)
2006
- Kruger, S. E.et al. 2006. Direct calculation of the spin stiffness of the spin-12 Heisenberg antiferromagnet on square, triangular, and cubic lattices using the coupled-cluster method. Physical Review -Series B- 73(9), article number: 94404. (10.1103/PhysRevB.73.094404)
2005
- Farnell, D. J. J.et al. 2005. High-order coupled cluster calculations via parallel processing: An illustration for CaV4O9. Physical Review -Series B- 72(17), article number: 172408. (10.1103/PhysRevB.72.172408)
- Darradi, R., Richter, J. and Farnell, D. J. J. 2005. Coupled cluster treatment of the Shastry-Sutherland antiferromagnet. Physical Review -Series B- 72(10), article number: 104425.
- Farnell, D. J. J., David, T. and Barton, D. C. 2005. Numerical model of self-propulsion in a fluid. Journal of the Royal Society Interface 2(2), pp. 79-88. (10.1098/rsif.2005.0027)
- Yang, J.et al. 2005. The effect of ovariectomy on mandibular cortical thickness in the rat. Journal of Dentistry 33(2), pp. 123-129. (10.1016/j.jdent.2004.09.001)
- Darradi, R., Richter, J. and Farnell, D. J. J. 2005. Influence of the spin quantum number s on the zero-temperature phase transition in the square-lattice J-J' model. Journal of Physics: Condensed Matter 17(2), pp. 341-350. (10.1088/0953-8984/17/2/009)
- Farnell, D. J. J. 2005. Automatic optic disk location in digital fundus images using active appearance models. Investigatiove Ophthamology & Visual Science 46, pp. 4272-4272.
- Knox, P. C., Hatfield, F. N. and Farnell, D. J. J. 2005. Automated analysis of the retinal vascular tree - parameterised data from healthy eyes. Investigative Ophthalmology and Visual Science 46, pp. 4288.
2004
- Farnell, D. J. J., David, T. and Barton, D. C. 2004. Coupled states of flapping flags. Journal of Fluids and Structures 19(1), pp. 29-36. (10.1016/j.jfluidstructs.2003.10.001)
- Farnell, D. J. J., David, T. and Barton, D. C. 2004. Numerical simulations of a filament in a flowing soap film. International Journal for Numerical Methods in Fluids 44(3), pp. 313-330. (10.1002/fld.640)
- Schollwoeck, U., Richter, J. and Farnell, D. J. J. eds. 2004. Quantum magnetism. Lecture Notes in Physics Vol. 645. Berlin: Springer Verlag.
2003
- Kruger, S. E., Farnell, D. J. J. and Richter, J. 2003. Coupled cluster treatments of quantum magnets: two examples. International Journal of Modern Physics B 17(28), pp. 5347-5365. (10.1142/S0217979203020478)
- Farnell, D. J. J. 2003. Density matrix renormalization group calculations for two-dimensional lattices: Application to the spin-half and spin-one square-lattice Heisenberg models. Physical Review B 68, article number: 134419. (10.1103/PhysRevB.68.134419)
2002
- Farnell, D. J. J., Bishop, R. F. and Gernoth, K. A. 2002. Coupled cluster method calculations of quantum magnets with spins of general spin quantum number. Journal of Statistical Physics 108(3-4), pp. 401-428. (10.1023/A:1015769622279)
- Ivanov, N. B., Richter, J. and Farnell, D. J. J. 2002. Magnetic phases of the mixed-spin J1-J2 Heisenberg model on a square lattice. Physical Review B 66, article number: 14421. (10.1103/PhysRevB.66.014421)
2001
- Farnell, D. J. J., Gernoth, K. A. and Bishop, R. F. 2001. High-order coupled-cluster method for general spin-lattice problems: an illustration via the anisotropic Heisenberg model. Physical Review-B 64, article number: 172409.
- Farnell, D. J. J., Bishop, R. F. and Gernoth, K. A. 2001. Coupled cluster treatment of an interpolating triangle-kagomé antiferromagnet. Physical Review B 63, article number: 220402. (10.1103/PhysRevB.63.220402)
- Bishop, R. F. and Farnell, D. J. J. 2001. High-order coupled cluster results for quantum antiferromagnets and their phase transitions. International Journal of Modern Physics B 15(10-11), pp. 1385-1388. (10.1142/S021797920100588X)
- Bishop, R. F. and Farnell, D. J. J. 2001. Marshall-peierls sign rules, the quantum Monte Carlo method, and frustration. International Journal of Modern Physics B 15(10-11), pp. 1736-1739. (10.1142/S0217979201006264)
2000
- Bishop, R. F., Farnell, D. J. J. and Ristig, M. L. 2000. Ab initio treatments of the Ising model in a transverse field. International Journal of Modern Physics B 14(15), pp. 1517-1536. (10.1142/S0217979200001618)
- Kruger, S. E.et al. 2000. Quantum phase transitions of a square-lattice Heisenberg antiferromagnet with two kinds of nearest-neighbour bonds: a high-order coupled-cluster treatment. Physical Review-B 61, pp. 14607. (10.1103/PhysRevB.61.14607)
- Bishop, R. F., Farnell, D. J. J. and Parkinson, J. B. 2000. Sign rules for anisotropic quantum spin systems. Physical Review-B 61, pp. 6775. (10.1103/PhysRevB.61.6775)
- Bishop, R. F.et al. 2000. High-order coupled cluster method calculations for the ground- and excited-state properties of the spin-half XXZ model. Journal of Physics: Condensed Matter 12(30), pp. 6887-6902. (10.1088/0953-8984/12/30/317)
- Bishop, R. F. and Farnell, D. J. J. 2000. Symmetry and its breaking: quantum phase transitions via the coupled cluster method. Presented at: 23rd International Workshop on Condensed Matter Theories, Ithaca, Greece, 17-23 June 1999 Presented at Anagnostatos, G. S. ed.Condensed Matter Theories, Vol. 15. Huntington, NY: Nova Science Publishers pp. 57-66.
- Bishop, R. F., Farnell, D. J. J. and Ristig, M. L. 2000. The Ising model in a transverse magnetic field: a test-bed for many-body theories. Presented at: 22nd International Workshop on Condensed Matter Theories, Nashville, Tennessee, 1-6 June 1998 Presented at Ernst, D. J., Perakis, I. E. and Umar, A. S. eds.Condensed Matter Theories, Vol. 14. Huntington, NY: Nova Science Publishers pp. 191-198.
1999
- Bishop, R. F. and Farnell, D. J. J. 1999. Ab initio calculations for the square-lattice anisotropic Heisenberg model. International Journal of Modern Physics B 13(5-6), pp. 709-719. (10.1142/S0217979299000606)
- Bishop, R. F., Farnell, D. J. J. and Zeng, C. 1999. Ab initio simulation of the nodal surfaces of Heisenberg antiferromagnets. Physical Review-B 59, article number: 1000. (10.1103/PhysRevB.59.1000)
1998
- Bishop, R. F., Farnell, D. J. J. and Parkinson, J. B. 1998. Phase transitions in the spin-half J1-J2 model. Physical Review-B 58(10), pp. 6394-6402. (10.1103/PhysRevB.58.6394)
- Zeng, C., Farnell, D. J. J. and Bishop, R. F. 1998. An efficient implementation of high-order coupled-cluster techniques applied to quantum magnets. Journal of Statistical Physics 90(1-2), pp. 327-361. (10.1023/A:1023220222019)
- Bishop, R. F. and Farnell, D. J. J. 1998. An ab initio coupled cluster theory of quantum spin lattices and their quantum critical behaviour. Molecular Physics 94(1), pp. 73-85.
- Bishop, R. F. and Farnell, D. J. J. 1998. Accurate coupled cluster calculations of general quantum antiferromagnets: an example on a frustrated lattice. Presented at: 21st International Workshop on Condensed Matter Theories, Luso, Portugal, 22-26 September 1997 Presented at da Providencia, J. and Malik, F. B. eds.Condensed Matter Theories, Vol. 13. Commack, NY: Nova Science Publishers pp. 21-43.
1997
- Farnell, D. J. J., Kruger, S. E. and Parkinson, J. B. 1997. Coupled-cluster treatment of the XY-model. Journal of Physics: Condensed Matter 9(36), pp. 7601-7608.
1996
- Bishop, R. F., Farnell, D. J. J. and Parkinson, J. B. 1996. The coupled-cluster method applied to the XXZ model using a planar model state. Journal of Physics: Condensed Matter 8(50), pp. 11153-11165. (10.1088/0953-8984/8/50/038)
1995
- Burshill, R.et al. 1995. Numerical and approximate analytical results for the frustrated spin-1/2 quantum spin chain. Journal of Physics: Condensed Matter 7(45), pp. 8605-8618.
1994
- Farnell, D. J. J. and Parkinson, J. B. 1994. A coupled-cluster treatment of spin-1/2 systems with nearest-neighbour and next-nearest-neighbour interactions. Journal of Physics: Condensed Matter 6(28), pp. 5521-5532. (10.1088/0953-8984/6/28/024)
Teaching
- Module leader for module entitled "Research Methods" for postgraduate students in the School of Dentistry.
- Module leader for an online postgraduate module entitled "Postgraduate Dental Professionalism"
- Academic tutor for second-year undergraduate dental students
- PhD supervision
- MSc and undergraduate project supervision
COVID Bereavement
A joint study between Bristol and Cardiff Universities (and beyond), which aims to understand the grief experiences and support needs of people who have been bereaved either due to COVID-19 or another cause of death during the pandemic. This study explores peoples' experiences at the end of life of loved ones (family or close friend) and of grieving, as well as any support that people felt needed during bereavement (and what support they actually received).
- Please follow this link for more information at the study website.
- To access the first report from this study, please click on click here;
- To see ITV News At Ten coverage, please click here
- To see Sky News coverage, please click here.
3D Imaging and Shape Modelling
Research in the Orthodontics and 3D Imaging Research group uses 3D facial imaging in order to "explain facial variation (biological make-up, anatomy, facial surface morphology and function) to inform a fully functioning biomechanical head model which is of value to improve healthcare interventions, improve wellbeing and quantify facial variation for face-wear, facial identification/forensics and computer interface industries."
My research focusses on developing mathematical models of 3D facial shape in order to achive the aims above. I have developed a multilevel principal components analysis (mPCA) code that allows us to model different sources of variations at different levels of the model. Recent research successes using the mPCA approach via this code have been:
- Detecting changes in facial shapes between different nationalities and also by sex. Click here for more details.
- Identifying seven phases of a "smile" in dynamic 3D shape "video" data. Click here for more details.
- Modelling age-related facial changes in Finnish and Welsh adolescents. Click here and here for more details.
- Influence of Maternal Smoking and Alcohol Consumption on the Facial Shape of English Adolescents. Click here for more details.
- In conjunction with the Otter Project at Cardiff University, sex and geographical variation in the shape of otter (Lutra lutra) in the United Kingdom. Click here for more details.
Automated Retinal Image Analysis (ARIA) dataset
I was the principal researcher for the ARIA project at St. Paul's Eye Unit, RLUHT (2003-2006). This involved the recruitment of patients, retinal photography, and image analysis of resulting digital fundus photographs.
- Please click here to access the freely available ARIA dataset, which is a directory of images collected by myself and members of staff of St Paul's Eye Unit and the University of Liverpool as part of this project.
CCCM (crystallographic coupled cluster method):
CCCM is a high-order CCM (coupled cluster method) code for lattice spin systems at T=0 by Damian J. J. Farnell (DF).
- Historically, this code is based on "foundations" laid by Ray Bishop and John Parkinson (amongst others), and Chen Zeng's work in the 90's on the high-order code.
- This code has been exploited and pushed forward by Damian Farnell and Sven Krüger primarily.
- Joerg Schulenburg (JS) improved this code greatly and he has set up this webpage for distribution of the most recent code.
Supervision
Current Supervsion
- Co-supervisor (PhD; 33%) of Ms. Jennifer Galloway. Project: 3D facial shape analysis.
- Lead supervisor (PhD; 50%) of Mr. Sam Evans. Project: description and interpretation of bruises sustained from physical abuse.
Past projects
Previous Supervision
- Co-supervisor (PhD awarded in 2006; 50%) of Dr. Kathryn Cracknell. Project: Latanoprost Induced Iris Darkening in Colour Images of the Eye for Glaucoma Patients. (University of Liverpool.)
- Co-supervisor (PhD awarded in 2019; 50%) of Dr. Nor Azlida Binti Mohd Nor. Project: Impact of fluoride concentration in water supply on oral health. (Cardiff University.)