Publications

2012

• Isabel N. Figueiredo, Carlos Leal, Giuseppe Romanazzi, Bjorn Engquist, Pedro N. Figueiredo: A convection-diffusion-shape model for aberrant colonic crypt morphogenesis, Computing and Visualization in Science, in press (2012).

• Isabel N. Figueiredo, Pedro Figueiredo, Nuno Almeida: Image-driven parameter estimation in absorption-diffusion models of chromoscopy, SIAM Journal on Imaging Sciences, 4, 3 (2011) 884-904 (Link).

• Isabel N. Figueiredo, Surya Prasath, Yen-Hsi R. Tsai, Pedro N. Figueiredo : Colonic polyp detection in wireless capsule endoscopy images and videos, internal report, Department of Mathematics, University of Coimbra, Portugal (2011).

• Pedro N. Figueiredo, Isabel N. Figueiredo, Surya Prasath and Richard Tsai : Automatic polyp detection in PillCam COLON 2 capsule images and videos - preliminary feasibility report, Diagnostic and Therapeutic Endoscopy, vol. 2011, Article ID 182435, 7 pages, 2011 (doi:10.1155/2011/182435).

• V. B. Surya Prasath, Isabel N. Figueiredo, and Pedro N. Figueiredo : Colonic mucosa detection in wireless capsule endoscopy images and videos (9 pages), in CD-ROM Proceedings of the Congress on Numerical Methods in Engineering (CMNE|2011), Coimbra, Portugal, June 14-17, 2011.

• Juan C. Moreno, Isabel N. Figueiredo and V. B. Surya Prasath : Texture image segmentation using higher-order derivatives (10 pages), in CD-ROM Proceedings of the Congress on Numerical Methods in Engineering (CMNE|2011), Coimbra, Portugal, June 14-17, 2011.

• Isabel N. Figueiredo, Surya Prasath, Yen-Hsi R. Tsai, Pedro N. Figueiredo: Automatic detection and segmentation of colonic polyps in wireless capsule images, Preprint 10-37, Department of Mathematics, University of Coimbra (2010) (also, ICES report 10-36 and UCLA-CAM Report 10-65).

• Isabel N. Figueiredo, Juan Moreno, Surya Prasath, Pedro Figueiredo: A segmentation model using image gradient information and applications to endoscopic images, Preprint 10-30, Department of Mathematics, University of Coimbra (2010).

• I. N. Figueiredo, P. N. Figueiredo, G. Stadler, O. Ghattas and A. Araújo: Variational image segmentation for endoscopic human colonic aberrant crypt foci, IEEE Transactions on Medical Imaging, 29, 4 (2010) 998-1011. (Link)

• Isabel N. Figueiredo, Carlos Leal, Tommaso Leonori, Giuseppe Romanazzi, Pedro N. Figueiredo and M. Manuel Donato: A coupled convection-diffusion level set model for tracking epithelial cells in colonic crypts, Procedia Computer Science, 1, 1 (2010) 955-963. (Link)

• José A. Carvalho, Isabel N. Figueiredo and Rebeca Martínez : Plate-like smart structures: reduced models and numerical simulations, Journal of Elasticity, 97 (2009) 47-75. (Link)

• Isabel N. Figueiredo and Georg Stadler : Frictional contact of an anisotropic piezoelectric plate, ESAIM: Control, Optimisation and Calculus of Variations (COCV) , 15 (2009) 149–172. (Link)

2008

• I.N. Figueiredo, P.N. Figueiredo, N. Almeida, M.C. Leitão, O. Ghattas, G. Stadler: Endoscopic detection of human colonic aberrant crypt foci using mathematical methods, Endoscopy 2008; 40 (Suppl 1) A 189.

• José A. Carvalho, Isabel N. Figueiredo and Rebeca Martínez: Smart plates: reduced models and numerical simulations, Preprint 08-28 of the Department of Mathematics, University of Coimbra (2008).

• Isabel N. Figueiredo, Pedro N. Figueiredo, Carlos Leal and José Miguel Urbano: A mathematical model for a comprehensive approach to the dynamics of human colonic aberrant crypt foci, Preprint 08-01 of the Department of Mathematics, University of Coimbra.

• José R. Fernández, Isabel N. Figueiredo and Rebeca Martínez : A convergence result in the study of bone remodeling contact problems, Journal of Mathematical Analysis and Applications Vol. 343, 2 (2008) 951-964. (Link)

• António M. Ferreira, Isabel N. Figueiredo, Juha Videman (Editors) : International Conference on Mathematics and Continuum Mechanics, CIM (Centro Internacional de Matemática), 30 (2008). (Link)

• L. Costa, I. Figueiredo, R. Leal, P. Oliveira, G. Stadler : Modeling and numerical study of actuator and sensor effects for a laminated piezoelectric plate, Computers and Structures, Vol. 85, 7-8 (2007) 385–403. (Link)

• Isabel N. Figueiredo, José F. Rodrigues and Lisa Santos (Editors): Free Boundary Problems: theory and applications, Series: International Series of Numerical Mathematics Vol. 154, Birkhauser Verlag, Basel, 2007. (Link)

• Isabel M. N. Figueiredo and Carlos M. F. Leal: A generalized piezoelectric Bernoulli-Navier anisotropic rod model, Journal of Elasticity Vol.85, 2 (2006) 85-106. (Link)

• L. Costa, P. Oliveira, I.N. Figueiredo and R. Leal : Actuator effect of a piezoelectric anisotropic plate model, Mechanics of Advanced Materials and Structures Vol. 13, 5 (2006) 403-417.(Link)

• Isabel N. Figueiredo and Georg Stadler : Optimal control of piezoelectric anisotropic plates, in CD-ROM Proceedings of the III European Conference on Computational Mechanics:Solids, Structures and Coupled Problems in Engineering, C.A. Mota Soares et .al. (eds.), Lisbon, Portugal, 5–8 June 2006.

• Isabel M. Narra Figueiredo and Carlos M. Franco Leal: A piezoelectric anisotropic plate model, Asymptotic Analysis Vol.44, 3-4 (2005) 327-346. (Link)

• Isabel N. Figueiredo, Carlos F. Leal and Cecilia S. Pinto: Shape analysis of an adaptive elastic rod model, SIAM Journal on Applied Mathematics Vol. 66, 1 (2005) 153-173.(Link)

• Isabel N. M. Figueiredo: Approximation of bone remodeling models, Journal de Mathématiques Pures et AppliquéesVol. 84, 12 (2005) 1794-1812. (Link)

• Isabel N. Figueiredo, Carlos F. Leal and Cecilia S. Pinto: Conical differentiability for bone remodeling contact rod models, ESAIM: Control, Optimisation and Calculus of Variations, Vol.11, 3 (2005) 382-400. (Link)

• Isabel N. Figueiredo, Joaquim J. Júdice and Silvério S. Rosa: A class of mathematical programs with equilibrium constraints: a smooth algorithm and applications to contact problems, Optimization and Engineering, Vol.6, 2 (2005) 203-239. (Link)

• Isabel Figueiredo and Luis Trabucho: Asymptotic model of a nonlinear adaptive elastic rod, Mathematics and Mechanics of Solids, Vol.9, 4 (2004) 331-354. (Link)

• L. Costa, L. Fernandes, I. Figueiredo, J. Júdice, R. Leal and P. Oliveira : Multiple and single objective approaches to laminate optimization with genetic algorithms, Structural and Multidisciplinary Optimization, Vol.27, 1-2 (2004) 55-65. (Link)

• A. Pinto da Costa, J.A.C. Martins, I.N. Figueiredo and J.J. Júdice: The directional instability problem in systems with frictional contacts, Computer Methods in Applied Mechanics and Engineering, Vol.193, 3-5 (2004) 357-384.(Link)

• Isabel N. Figueiredo, Joaquim J. Júdice, Pedro N. Oliveira : Complementarity and genetic algorithms for an optimization shell problem, Central European Journal of Operations Research, Vol.11, 2, (2003) 143-161.

• Isabel Narra Figueiredo, Luis Filipe Menezes, Juha Videman (Editors) : Modelling and Numerical Simulation in Continuum Mechanics, CIM (Centro Internacional de Matemática), 23 (2003) 194 pages.

• Isabel N. Figueiredo and Carlos F. Leal: Sensitivity analysis of a nonlinear obstacle plate problem, ESAIM: Control, Optimisation and Calculus of Variations, Vol.7, (2002) 135-156.

• Luis M. Fernandes, Isabel N. Figueiredo and Joaquim J. Júdice : On the solution of a finite element approximation of a linear obstacle plate problem, International Journal of Applied Mathematics and Computer Science, Vol.12, 1, (2002) 101-114.

• Isabel N. Figueiredo, Joaquim J. Júdice and Silvério S. Rosa : Solution methods for structural optimization in contact rod problems, in Contact Mechanics, J.A.C. Martins and Manuel D.P. Monteiro Marques (Eds.), Kluwer Academic Publishers, (2002) 325-332.

• Isabel M. Narra Figueiredo: Sumário da Lição de Síntese - Análise Matemática de Alguns Problemas em Elasticidade, Departamento de Matemática, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 2002 (27 pages, in portuguese).

• Isabel M. Narra Figueiredo: Relatório -Programa, conteúdos e métodos de ensino teórico-prático, das matérias da disciplina de Método de Elementos Finitos Aplicado a Problemas Elípticos, Departamento de Matemática, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 2002 (50 pages, in portuguese).

• A. Pinto da Costa, I.N. Figueiredo, J.J. Júdice, J.A.C. Martins: A complementarity eigenproblem in the stability analysis of finite dimensional elastic systems with frictional contact, in Complementarity, Applications, Algorithms and Extensions, M.C. Ferris, O.L. Mangasarian and J-S. Pang (Eds.), Appl. Optim., 50, Kluwer Academic Publishers, Dordrecht, (2001) Chap.4, 67-83.

• Rogério Leal, Lino Costa, Pedro Oliveira, Isabel Figueiredo: Algoritmos genéticos na optimização de laminados, in Actas do VI Congresso Nacional de Mecânica Aplicada e Computacional, Universidade de Aveiro, Paulo M.M. Vila Real, José J. Grácio (Eds.), Vol. 1, (2000) 343-356 (in portuguese).

• Dorin Bucur, Giuseppe Buttazzo, Isabel Figueiredo: On the attainable eigenvalues of the Laplace operator, SIAM Journal of Mathematical Analysis, Vol.30, 3, (1999) 527-536.

• L. Costa, P. Oliveira, I. Figueiredo, L. Roseiro, R. Leal : Compliance minimization of a composite laminated plate by Genetic Algorithms, in CD-ROM Proceedings of the European Conference on Computational Mechanics, Editor W. Wunderlich, (Munich, Germany, August 31 - September 3), (1999) 16 pages.

• Isabel Figueiredo and Carlos Leal: Ellipticity of the Koiter and Naghdi models for nonhomogeneous anisotropic shells, Applicable Analysis, Vol.70, 1-2, (1998) 75-84.

• L. Costa, L. Fernandes, I. Figueiredo, J. Júdice, P. Oliveira : Application of genetic algorithms to plate optimization, in Computational Mechanics, New Trends and Applications, S.R. Idelsohn, E. Oñate, E. Dvorkin (Eds.), CD-ROM Proceedings of the Fourth World Congress on Computational Mechanics, Buenos Aires, Argentina, 29 June-2 July, 1998, CIMNE, Barcelona, Spain, (1998) 9pages.

• L. Fernandes, I. Figueiredo and J. Júdice : Computational methods for plate and shallow shell contact problems,in Computational Mechanics, New Trends and Applications, S.R. Idelsohn, E.Oñate, E. Dvorkin (Eds.), CD-ROM Proceedings of the Fourth World Congress on Computational Mechanics, Buenos Aires, Argentina, 29 June-2 July, 1998, CIMNE, Barcelona, Spain, (1998) 9 pages.

• I. Figueiredo and C. Leal: Numerical analysis of contact and friction problems in thermoelasticity, in Escola de Elementos Finitos e Aplicações, CIM (Centro Internacional de Matemática), 6, (1998) 33 pages.

• Isabel Maria Narra de Figueiredo (editor), Escola de Elementos Finitos e Aplicações, CIM (Centro Internacional de Matemática), 6,1998.

• Isabel Figueiredo and Carlos Leal: Anisotropic shells, in Shells Mathematical Modelling and Scientific Computing, M. Bernadou, P.G. Ciarlet and J.M. Viaño (Eds.), Cursos e Congressos da Universidade de Santiago de Compostela (Spain), 105, (1997) 73-76.

• L. Fernandes, I. Figueiredo, J. Júdice : Solution of nonlinear obstacle problems by complementarity algorithms, in Actas do V Encontro Nacional de Mecânica Computacional, Universidade do Minho, Guimarães, 20-22 de Outubro, (1997) 395-404.

• Isabel Figueiredo, Enrique Zuazua: Exact controllability and asymptotic limit for thin plates, Asymptotic Analysis, Vol.12, 3, (1996) 213-252.

• I. Figueiredo, L. Trabucho: A class of contact and friction dynamic problems in thermoelasticity and in thermoviscoelasticity, International Journal of Engineering Science, Vol.33, 1, (1995) 45-66.

• Isabel Figueiredo and Enrique Zuazua: Exact controllability, asymptotic methods and plates, Asymptotic Methods for Elastic Strutures, Ciarlet/ Trabucho/Viaño (Eds.), Walter de Gruyter & Co., New York, (1995) 69-74.

• Isabel Figueiredo and Luis Trabucho: Some existence results for contact and friction problems in thermoelasticity and in thermoviscoelasticity, Asymptotic Methods for Elastic Strutures, Ciarlet/Trabucho/Viaño (Eds.), Walter de Gruyter & Co., New York, (1995) 223-235.

• Isabel M. Narra de Figueiredo: Relatório - Programa, conteúdos e métodos de ensino teórico-prático, das matérias da disciplina de Complementos de Análise Funcional, Departamento de Matemática, Universidade de Coimbra, 1994 (in portuguese).

• I. Figueiredo, L. Trabucho: A Galerkin approximation for curved beams, Computer Methods in Applied Mechanics and Engineering, Vol.102, 2, (1993) 235-253.

• I. Figueiredo, L. Trabucho: A Galerkin approximation for linear elastic shallow shells, Computational Mechanics, Vol.10, 2, (1992) 107-119.

• Isabel M. Narra de Figueiredo: A justification of the Donnell-Mushtari-Vlasov model by the asymptotic expansion method, Asymptotic Analysis, Vol.4, 3, (1991) 257-269.

• Isabel M. Narra de Figueiredo: Local existence and regularity of the solution of the shell model of Donnell-Mushtari-Vlasov, Applicable Analysis, Vol.36, 3-4, (1990) 221-234.

• Isabel M. Narra de Figueiredo: I. Obtention du modèle de coque de Marguerre, d'épaisseur non constante, par la méthode asymptotique; II.Application d'une méthode incrémentale au modèle de Marguerre, in 2^nd Week On Asymptotic Analysis, Centro de Matemática e Aplicações Fundamentais, Textos e Notas 43, Lisboa, 1990 (in French).

• Isabel M. Narra de Figueiredo: Modèles de Coques Elastiques Non Linéaires, Méthode Asymptotique et Existence de Solutions, Ph.D.Thesis, Université Pierre et Marie Curie, France, 1989 (in French).

• Isabel M. Narra de Figueiredo: Métodos Variacionais e Numéricos em Elasticidade, Master's Thesis, Universidade de Coimbra,Portugal, 1986 (in Portuguese).