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Article

de Lacy Costello, B. , Ledochowski, M. and Ratcliffe, N. M. (2013) The importance of methane breath testing: A review. To be published in Journal of Breath Research, 7 (2). ISSN 1752-7155 [In Press]

Ahmed , I. , Greenwood, R. , de Lacy Costello, B. , Ratcliffe, N. M. and Probert, C. (2013) An investigation of fecal volatile organic metabolites in irritable bowel syndrome. PLoS ONE, 8 (3). ISSN 1932-6203

Khalid, T. , Saad, S. , Greenman, J. , de Lacy Costello, B. , Probert, C. and Ratcliffe, N. M. (2013) Volatiles from oral anaerobes confounding breath biomarker discovery. Journal of Breath Research, 7 (1). ISSN 1752-7155

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2012) Spontaneous bursting spike patterns seen in simple three memristor circuits. To be published in N/A. [Unpublished]

Stevens, W. M. , Adamatzky, A. , Jahan, I. and de Lacy Costello, B. (2012) Time-dependent wave selection for information processing in excitable media. Physical Review E, 85 (6). ISSN 1539-3755

Howard, D. , Gale, E. , Bull, L. , de Lacy Costello, B. and Adamatzky, A. (2012) Evolution of plastic learning in spiking networks via memristive connections. IEEE Transactions on Evolutionary Computation, 16 (5). pp. 711-729. ISSN 1089-778X

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2012) Observation, characterization and modeling of memristor current spikes. To be published in Applied Mathematics and Information Science. ISSN 1935-0090 [Submitted]

Adamatzky, A. and de Lacy Costello, B. (2011) Computing with liquid crystal fingers: Models of geometric and logical computation. To be published in Physical Review E, 84 (6). ISSN 1550-2376 [Submitted]

Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2011) On polymorphic logical gates in subexcitable chemical medium. International Journal of Bifurcation and Chaos, 21 (07). pp. 1977-1986. ISSN 0218-1274

Holley, J. , Jahan, I. , de Lacy Costello, B. , Bull, L. and Adamatzky, A. (2011) Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks. Physical Review E, 84 (5). 056110. ISSN 1539-3755

de Lacy Costello, B. , Adamatzky, A. , Jahan, I. and Zhang, L. (2011) Towards constructing one-bit binary adder in excitable chemical medium. Chemical Physics, 381 (1-3). pp. 88-99. ISSN 0301-0104

Adamatzky, A. , de Lacy Costello, B. , Holley, J. , Gorecki, J. and Bull, L. (2011) Vesicle computers: Approximating a Voronoi diagram using Voronoi automata. Chaos Solitons and Fractals, 44 (7). pp. 480-489. ISSN 0960-0779

de Lacy Costello, B. , Jahan, I. , Hambidge, P. , Locking, K. , Patel, D. and Adamatzky, A. (2010) Chemical tesellations - results of binary and tertiary reactions between metal ions and ferricyanide or ferrocyanide loaded gels. International Journal of Bifurcation and Chaos, 20 (7). pp. 2241-2252. ISSN 0218-1274

Toth, R. , Stone, C. , Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2009) Experimental validation of binary collisions between wave fragments in the photosensitive Belousov–Zhabotinsky reaction. Chaos, Solitons and Fractals, 41 (4). pp. 1605-1615. ISSN 0960-0779

de Lacy Costello, B. , Jahan, I. , Adamatzky, A. and Ratcliffe, N. M. (2009) Chemical tessellations. International Journal of Bifurcation and Chaos, 19 (2). pp. 619-622. ISSN 0218-1274

Toth, R. , Stone, C. , Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2009) Experimental validation of binary collisions between wave fragments in the photosensitive Belousov-Zhabotinsky reaction. Chaos, Solitons and Fractals, 41 (4). pp. 1605-1615. ISSN 0960-0779

de Lacy Costello, B. , Jahan, I. , Ratcliffe, N. M. and Armstrong, J. (2009) Fine control and selection of travelling waves in Inorganic Pattern Forming Reactions. International Journal of Nanotechnology and Molecular Computation, 1 (3). pp. 26-36. ISSN 1941-6138

de Lacy Costello, B. , Toth, R. , Stone, C. , Adamatzky, A. and Bull, L. (2009) Implementation of glider guns in the light-sensitive Belousov-Zhabotinsky medium. Physical Review E, 79 (2). 026114. ISSN 1539-3755

Toth, R. , Stone, C. , de Lacy Costello, B. , Adamatzky, A. and Bull, L. (2009) Simple collision-based chemical logic gates with adaptive computing. International Journal of Nanotechnology and Molecular Computation (IJNMC), 1 (3). pp. 1-16. ISSN 1941-6318

Toth , R. , de Lacy Costello, B. , Stone, C. , Masere, J. , Adamatzky, A. and Bull, L. (2009) Spiral formation and degeneration in heterogeneous excitable media. Physical Review E, 79 (3). 035101(R) (4 pages). ISSN 1539-3755

de Lacy Costello, B. , Ewen, R. , Ratcliffe, N. M. and Richards, M. (2008) The characteristics of novel low-cost sensors for volatile biomarker detection. Journal of Breath Research, 2 (3). 037017. ISSN 1752-7155

de Lacy Costello, B. (2008) A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath. Journal of Breath Research, 2 (3). 037011. ISSN 1752-7155

Toth, R. , Stone, C. , Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2008) Dynamic control and information processing in the Belousov-Zhabotinsky reaction using a coevolutionary algorithm. The Journal of Chemical Physics, 129. p. 184708. ISSN 0021-9606

Toth, R. , Stone, C. , Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2008) Dynamic control and information processing in the Belousov–Zhabotinsky reaction using a coevolutionary algorithm. The Journal of Chemical Physics, 129 (18). p. 184708. ISSN 0021-9606

de Lacy Costello, B. , Ewen, R. , Ratcliffe, N. M. and Richardson, M. (2008) Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles. Sensors and Actuators B: Chemical, 134 (2). pp. 945-952. ISSN 0925-4005

Martinez, G. J. , Adamatzky, A. and de Lacy Costello, B. (2008) On logical gates in precipitating medium: cellular automaton model. Physics Letters A, 372 (31). pp. 5115-5119. ISSN 0375-9601

Adamatzky, A. , de Lacy Costello, B. and Shirakawa, T. (2008) Universal computation with limited resources: Belousov-Zhabotinsky and physarum computers. International Journal of Bifurcation and Chaos, 18 (08). pp. 2373-2389. ISSN 0218-1274

de Lacy Costello, B. , Ewen, R. , Ewer, A. , Garner, C. , Probert , C. , Ratcliffe, N. M. and Smith, S. (2008) An analysis of volatiles in the headspace of the faeces of neonates. Journal of Breath Research, 2 (3). 037023. ISSN 1752-7155

Smith, S. , Burden, H. , Persad, R. , Whittington, K. , de Lacy Costello, B. , Ratcliffe, N. M. and Probert, C. S. (2008) A comparative study of the analysis of human urine headspace using gas chromatography–mass spectrometry. Journal of Breath Research, 2 (3). 037022. ISSN 1752-7155

Garner, C. E. , Smith, S. , de Lacy Costello, B. , White, P. , Spencer, R. , Probert, C. and Ratcliffe, N. M. (2007) Volatile organic compounds from feces and their potential for diagnosis of gastrointestinal disease. The FASEB Journal, 21 (8). pp. 1675-1688. ISSN 1530-6860

Garner, C. E. , Smith, S. , de Lacy Costello, B. , White, P. , Spencer, R. , Probert, C. and Ratcliffe, N. M. (2007) Volatile organic compounds from feces and their potential for gastrointestinal disease diagnoses. The Journal of the Federation of American Societies for Experimental Biology, 21 (8). pp. 1675-1688. ISSN 0892-6638

de Lacy Costello, B. and Adamatzky, A. (2005) Experimental implementation of collision-based gates in Belousov-Zhabotinsky medium. Chaos, Solitons & Fractals, 25 (3). pp. 535-544. ISSN 0960-0779

de Lacy Costello, B. , Sivanand, P. S. , Ratcliffe, N. M. and Reynolds, D. M. (2005) The rapid detection of methyl tert-butyl ether (MtBE) in water using a prototype gas sensor system. Water Science & Technology, 52 (8). pp. 117-123. ISSN 0273-1223

de Lacy Costello, B. , Ratcliffe, N. M. , Adamatzky, A. , Zanin, A. , Liehr, A. and Purwins, H. (2004) The formation of voronoi diagrams in chemical and physical systems: Experimental findings and theoretical models. International Journal of Bifurcation and Chaos , 14 (7). pp. 2187-2210. ISSN 0218-1274

Adamatzky, A. , Arena, P. , Basile, A. , Carmona-Galan, R. , de Lacy Costello, B. , Fortuna, L. , Frasca, M. and Rodriguez-Vazquez, A. (2004) Reaction-diffusion navigation robot control: From chemical to VLSI analogic processors. IEEE Transactions on Circuits and Systems I: Regular Papers, 51 (5). 926 - 938. ISSN 1057-7122

de Lacy Costello, B. , Hantz, Péter and Ratcliffe, N. M. (2004) Voronoi diagrams generated by regressing edges of precipitation fronts. The Journal of Chemical Physics, 120 (5). pp. 2413-2416. ISSN 0021-9606

Adamatzky, A. , de Lacy Costello, B. , Ratcliffe, N. M. and Melhuish, C. (2003) Experimental reaction–diffusion chemical processors for robot path planning. Journal of Intelligent and Robotic Systems, 37 (3). pp. 233-249. ISSN 0921-0296

de Lacy Costello, B. , Ewen, R. , Ratcliffe, N. M. and Sivanand, P. S. (2003) Thick film organic vapour sensors based on binary mixtures of metal oxides. Sensors and Actuators B: Chemical, 92 (1-2). pp. 159-166. ISSN 0925-4005

de Lacy Costello, B. , Ewen, R. , Gunson, H. , Ratcliffe, N. M. , Sivanand, P. and Spencer-Phillips, P. T. (2003) A prototype sensor system for the early detection of microbially linked spoilage in stored wheat grain. Measurement Science and Technology, 14 (4). pp. 397-409. ISSN 0957-0233

de Lacy Costello, B. , Ewen, R. , Guernion, N. and Ratcliffe, N. M. (2002) Highly sensitive mixed oxide sensors for the detection of ethanol. Sensors and Actuators B:Chemical, 87 (1). pp. 207-210. ISSN 0925-4005

Adamatzky, A. and de Lacy Costello, B. (2002) Collision-free path planning in the Belousov-Zhabotinsky medium assisted by a cellular automaton. Naturwissenschaften, 89 (10). pp. 474-478. ISSN 1432-1904

Adamatzky, A. , de Lacy Costello, B. and Ratcliffe, N. M. (2002) Experimental reaction–diffusion pre-processor for shape recognition. Physics Letters A, 297 (5-6). pp. 344-352. ISSN 0375-9601

Guernion, N. , de Lacy Costello, B. and Ratcliffe, N. M. (2002) The synthesis of 3-octadecyl- and 3-docosylpyrrole, their polymerisation and incorporation into novel composite gas sensitive resistors. Synthetic Metals, 128 (2). pp. 139-147. ISSN 0379-6779

Adamatzky, A. and de Lacy Costello, B. (2002) Experimental logic gates in reaction-diffusion medium: The XOR gate and beyond. Physical Review E, 66 (4). ISSN 1095-3787

de Lacy Costello, B. , Evans, P. , Ewen, R. , Gunson, H. , Jones, P. R. , Ratcliffe, N. M. and Spencer-Phillips, P. T. (2001) Gas chromatography-mass spectrometry analyses of volatile organic compounds from potato tubers inoculated with Phytophthora infestans or Fusarium coeruleum. Plant Pathology, 50 (4). pp. 489-496. ISSN 0032-0862

de Lacy Costello, B. , Ewen, R. , Gunson, H. , Ratcliffe, N. M. and Spencer-Phillips, P. T. (2000) The development of a sensor system for the early detection of soft rot in stored potato tubers. Measurement Science and Technology, 11 (12). p. 1685. ISSN 0957-0233

de Lacy Costello, B. , Evans, P. , Ewen , R. , Gunson, H. , Ratcliffe, N. M. and Spencer-Phillips, P. T. (1999) Identification of volatiles generated by potato tubers (Solanum tuberosum CV : Maris Piper) infected by erwinia carotovora, bacillus polymyxa and arthrobacter sp. Plant Pathology, 48 (3). pp. 345-351. ISSN 0032-0862

de Lacy Costello, B. , Evans, P. , Ewen, R. , Honeybourne, C. and Ratcliffe, N. M. (1996) Novel composite organic–inorganic semiconductor sensors for the quantitative detection of target organic vapours. Journal of Materials Chemistry, 6 (3). pp. 289-294. ISSN 0959-9428

Book Section

Gale, E. , Pearson, D. , Kitson, S. , Adamatzky, A. and de Lacy Costello, B. (2012) Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode material. In: Heber, J. , Schlom, D. , Tokura, Y. , Waser, R. and Wuttig, M. , eds. (2012) Technical Digest of Frontiers in Electronic Materials. Germany: Nature Conferences & Wiley VCH, pp. 577-578.

Adamatzky, A. , de Lacy Costello, B. and Yokoi, H. (2009) Reaction diffusion controllers for robots. In: Adamatzky, A. and Komosinski, M. , eds. (2009) Artificial Life Models in Hardware. London: Springer Verlag, pp. 233-264.

Stone, C. , Toth, R. , de Lacy Costello, B. , Bull, L. and Adamatzky, A. (2008) Coevolving cellular automata with memory for chemical computing: Boolean logic gates in the BZ reaction. In: Rudolph , Günter , Jansen, T. , Lucas, S. M. , Poloni , C. and Beume, N. , eds. (2008) Parallel Problem Solving from Nature - PPSN X: 10th International Conference Dortmund, Germany, September 13-17, 2008. 2008 edition. Berlin/Heidelberg: Springer , pp. 579-588. ISBN 9783540876991

Martinez, G. J. , Adamatzky, A. , McIntosh, H. V. and de Lacy Costello, B. (2008) Computation by competing patterns: life rule B2/S2345678. In: Adamatzky, A. , Alonso-Sanz, R. , Lawniczak, A. , Martinez, G. J. , Morita, K. and Worsch, T. , eds. (2008) Automata 2008: Theory and Applications of Cellular Automata. Frome: Luniver Press, pp. 356-367. ISBN 978-1-905986-16-3

Budd, A. , Stone, C. , Masere, J. , Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2006) Towards machine learning control of chemical computers. In: Adamatzky, A. and Teuscher, C. , eds. (2006) From Utopian to Genuine Unconventional Computers. Frome, UK: Luniver Press, pp. 17-36. ISBN 9780955117091

de Lacy Costello, B. , Ewen, R. , Garner, K. , Probert, C. , Ratcliffe, N. M. and Smith, S. (2005) Rapid diagnosis of gastro-intestinal infections using faecal odour. In: Amann, A. and Smith, D. , eds. (2005) Breath Analysis For Clinical Diagnosis And Therapeutic Monitoring. World Scientific Publishing Company, pp. 429-436. ISBN 9789812562845

de Lacy Costello, B. , Ewen, R. , Gunson, H. , Ratcliffe, N. M. and Spencer-Phillips, P. T. (2001) The use of a minimal number of vapour sensors for the assessment of food quality. In: Clark, S. , Thompson, K. , Keevil, C. and Smith, M. , eds. (2001) Rapid Detection Assays. Royal Society of Chemistry, pp. 148-152. ISBN 0854047794

Abbass, A. , de Lacy Costello, B. , Cooper, L. , Evans, P. , Ewen, R. , Hart, J. and Ratcliffe, N. M. (1999) A pilot-plant study of an automated quality control electronic nose for the monitoring of dry cured hams. In: Hurst, W. , ed. (1999) Electronic Noses & Sensor Array Based Systems - Design & Applications, Fifth International Symposium Proceedings. Pennsylvania, USA: CRC Press, pp. 211-224. ISBN 9781566767804

Monograph

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2012) Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors. Working Paper. University of the West of England, Bristol. [Submitted]

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2012) The effect of electrode size on memristor properties: an experimental and theoretical study. Working Paper. University of the West of England, Bristol. [Submitted]

Gale, E. , Adamatzky, A. and de Lacy Costello, B. (2012) Drop-coated titanium dioxide memristors. Working Paper. University of the West of England, Bristol. [Unpublished]

Gale, E. , Pearson, D. , Kitson, S. , Adamatzky, A. and de Lacy Costello, B. (2011) Aluminium electrodes effect the operation of titanium oxide sol-gel memristors. Working Paper. University of the West of England, Bristol. [Unpublished]

Conference or Workshop Item

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2013) Design of a hybrid robot control system using memristor-model and ant-inspired based information transfer protocols. In: International Conference on Robotics and Automation (ICRA) 2013, Karlsruhe, 10th May 2013. Karlsruhe: IEEE [In Press]

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2013) Does the D.C. response of memristors allow robotic short-term memory and a possible route to artificial time perception? In: International Conference on Robotics and Automation (ICRA) 2013, Karlsruhe, 10th May. Karlsruhe: UNSPECIFIED [In Press]

Gale, E. , Matthews, O. , de Lacy Costello, B. and Adamatzky, A. (2013) Beyond Markov chains, towards adaptive memristor network-based music generation. In: First AISB symposium on Music and Unconventional Computing, University of Exeter, UK, April 2nd-5th, 2013. University of Exeter, UK: UNSPECIFIED [In Press]

Gale, E. , Pearson, D. , Kitson, S. , Adamatzky, A. and de Lacy Costello, B. (2012) Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode materials. In: Pearson, D. and Kitson, S. , eds. Frontiers in Electronic Materials, Aachen, Germany, 17-20 June 2012.

Gale, E. , Adamatzky, A. and de Lacy Costello, B. (2012) Fabrication and modelling of titanium dioxide memristors. In: RSC Younger Members Symposium 2012, Nottingham, UK, 13 June 2012.

Gale, E. , de Lacy Costello, B. and Andrew, A. (2011) Comparison of ant-inspired gatherer allocation approaches using memristor-based environmental models. In: Bioadcom 2011 Workshop on Bio-inspired Approaches to Advanced Computing and Communications (BioAdcom2011), York, England, 5th - 6th December, 2011.

Gale, E. , de Lacy Costello, B. and Adamatzky, A. (2011) Neuromorphic computing with memristors: Preliminary experimental results. In: Building Bridges to Build Brains, Edinburgh, November, 21-22nd, 2011. Edinburgh: UNSPECIFIED

Howard, G. D. , Gale, E. , Bull, L. , de Lacy Costello, B. and Adamatzky, A. (2011) Evolving spiking networks with variable memristors. In: GECCO '11 Proceedings of the 13th annual conference on Genetic and evolutionary computation, 2011., pp. 1275-1282

Abuelnnor, N. , Jones, P. , Ratcliffe, N. M. , de Lacy Costello, B. and Spencer-Phillips, P. T. (2010) Investigation of the semiochemicals of confused flour beetle Tribolium confusum Jaquelin du Val and grain weevil Sitophilus granarius (L.) in stored wheat grain and flour. In: 10th International Working Conference on Stored Product Protection, Estoril Congress Center, Portugal, 27 June - 2 July 2010 , Estoril Congress Center, Portugal, 27 June - 2 July 2010. Proceedings of the 10th International Working Conference on Stored Product Protection,Julius-Kühn-Archiv : Julius-Kühn-Archiv, pp. 72-75

de Lacy Costello, B. , Ewen, R. , Garner, C. , Greenwood, R. , Osborne, A. , Probert, C. , Ratcliffe, N. M. and Smith, S. (2009) Analyses of volatile organic compounds to diagnose clostridium difficile and campylobacter. In: BREATH 2009 International Conference on Breath and Breath Odor Research, Dortmund, Germany, 26-30 April 2009.

Khalid, T. , Ratcliffe, N. M. , de Lacy Costello, B. , Ewen, R. , White, P. , Shenoy, A. and Probert, C. (2009) Analysis of volatile organic compounds in exhaled breath from liver cirrhotics. In: BREATH 2009 International Conference on Breath and Breath Odor Research, Dortmund, Germany, 26-30 April 2009.

Khalid, T. , Ratcliffe, N. M. , de Lacy Costello, B. , Greenman, J. and Saad, S. (2009) Volatiles from oral anaerobes. In: BREATH 2009 International Conference on Breath and Breath Odor Research, Dortmund Germany, 26-30 April 2009.

de Lacy Costello, B. , Ewen, R. , Garner, K. , Probert, C. , Ratcliffe, N. M. and Stevens, S. (2009) The measurement of breath volatiles for correlation with blood glucose levels and an assessment of their usefulness in diagnosing and managing diabetes. In: BREATH 2009 International Conference on Breath and Breath Odor Research, Dortmund, Germany, 26-30 April 2009.

Stevens, S. , de Lacy Costello, B. , Ewen, R. , Khalid, T. , Probert , C. and Ratcliffe, N. M. (2009) 'A simple, low-cost device for the collection of volatile organic compounds in patients' breath and the hospital bedside. In: BREATH 2009 International Conference on Breath and Breath Odor Research, Dortmund, Germany, 26-30 April 2009.

Stone, C. , Toth, R. , de Lacy Costello, B. , Adamatzky, A. and Bull, L. (2008) Co-evolving cellular automatat with memory for chemical computing: Boolean logic gates in the BZ reaction. In: 10th International Conference Parallel problem solving from Nature- PPSN X, Dortmund, Germany, 13th - 17th September, 2008.

Martinez, G. J. , Adamatzky, A. , McIntosh, H. V. and de Lacy Costello, B. (2008) Computation by competing patterns: life rule B2/S2345678. In: Automata 2008, Bristol, UK, 12-14 June 2008.

Toth, R. , Stone, C. , de Lacy Costello, B. , Adamatzky, A. and Bull, L. (2008) Towards designing collision based chemical logic gates with adaptive computing. In: IPCC 2008, Concordia University, Montreal, Canada, 2008.

Stone, C. , Toth, R. , Adamatzky, A. , de Lacy Costello, B. and Bull, L. (2007) Towards the coevolution of cellular automata controllers for chemical computing with the B-Z reaction. In: 9th annual conference on Genetic and evolutionary computation, London, England, July 7-11, 2007. London: UNSPECIFIED, pp. 472-478

Book

Adamatzky, A. , de Lacy Costello, B. and Asai, T. (2009) Reaction diffusion computers. Springer Verlag, London. ISBN 9780444520425

Adamatzky, A. , de Lacy Costello, B. , Bull, L. , Stepney, S. and Teuscher, C. (2007) Unconventional computing 2007. Frome: Luniver Press. ISBN 978-1-905986-05-7

Adamatzky, A. , de Lacy Costello, B. and Asai, T. (2005) Reaction-diffusion computers. Elsevier. ISBN 0-444-52042-2

Patent

Ratcliffe, N. M. , de Lacy Costello, B. , Ewen, R. and Probert, C. (2012) A diagnostic apparatus for analysing a sample to diagnose disease. University of the West of England / University of Bristol. 10788038.

Ratcliffe, N. M. , de Lacy Costello, B. , Ewen, R. and Probert, C. (2011) A diagnostic apparatus for analysing a sample to diagnose disease. University of the West of England/ University of Bristol. EP2010/067859.

Ratcliffe, N. M. , de Lacy Costello, B. and Richards, W. (2010) Gas sensor. University of the West of England. US20110259080 / WO2009037289A1.