Juan F.R. Archilla;F. Michael Russell;Medina-Carrasco, Santiago:
Localized waves in silicates. What we know from experiments?. Sesión no plenaria en Congreso. 13th Chaotic Modeling and Simulation International Conference. Florence, ITALY. 2020
Juan F.R. Archilla;Doi, Yusuke;Kimura, Masayuki:
Energy and charge transport in a silicate layer. Ponencia en Congreso. The 2019 International Symposium in Nonlinear Theory and its Applications. Kuala Lumpur, Kuala Lumpur, Malasia. 2019
F. Michael Russell;Russell, Mark W.;Medina-Carrasco, Santiago;Juan F.R. Archilla;Frutos-Rayego, Fabian:
Mica group structure and hyperconductivity. Sesión plenaria en Congreso. JSLoc 2019: Japanese-Spanish Symposium on Energy Localization in Nonlinear Lattices. Sevilla. 2019
Kimura, Masayuki;Juan F.R. Archilla;Doi, Yusuke:
Moving Intrinsic Localized Modes in a Mixed Model of Fermi-Pasta-Ulam and Nonlinear Klein-Gordon Lattice. Comunicación en congreso. JSLoc 2019: Japanese-Spanish Symposium on Energy Localization in Nonlinear Lattices. Sevilla. 2019
Juan F.R. Archilla;Doi, Yusuke;Kimura, Masayuki:
Pterobreathers: wing and breather frequencies in the moving frame. Sesión plenaria en Congreso. JSLoc 2019: Japanese-Spanish Symposium on Energy Localization in Nonlinear Lattices. Sevilla. 2019
F. Michael Russell;Russell, Mark W.;Juan F.R. Archilla;Medina-Carrasco, Santiago;Orta-Cuevas, María Del Mar:
Hyperconductivity in layered silicates of the mica group. Poster en Congreso. V Reuniao Anual sobre Argilas Aplicadas. Franca, Sao Paulo, Brasil. 2019
Juan F.R. Archilla;Doi, Yusuke;Kimura, Masayuki:
Pterobreathers in their moving frame. Ponencia en Congreso. Chaos 2019: 12th Chaotic Modeling and Simulation International Conference and Symposium in Honor of the 60th Birthday of Giorgos P. Tsironis. Chania (Creta, Grecia). 2019
Juan F.R. Archilla;Doi, Yusuke;Kimura, Masayuki:
Breathers and tail-breathers in a realistic model of a silicate. Ponencia en Congreso. 2018 International Symposium on Nonlinear Theory and Its Applications. Tarragona, España. 2018
García-raffi, Lluís M.;Salmerón-contreras, Luís J.;Jiménez, Noé;Mehrem, Ahmed;Sánchez-morcillo, Víctor J.;Juan F.R. Archilla:
Kinks in a chain of magnetic coupled pendulums: Experimental and numerical study. Comunicación en congreso. 2018 International Symposium on Nonlinear Theory and Its Applications. Tarragona, España. 2018
García-raffi, Luis ;Salmerón-contreras, Luis J;Jiménez, Noé;Mehrem, Ahmed;Picó, Rubén;Juan F.R. Archilla:
Nonlinear waves in a chain of magnetically coupled pendula. Comunicación en congreso. 21st International Symposium on Nonlinear Acoustics. Santa Fe, New Mexico, USA. 2018
Juan F.R. Archilla:
Nonlocal solitary waves in a model for a layered silicate. Ponencia en Congreso. Nonlinear Localization in Lattices . Spetses, Grecia. 2018
Juan F.R. Archilla:
Nonlinear excitations in solids: observation and consequences. Sesión plenaria en Congreso. International Conference on Nonlinear Mathematics and Physics. Escuela de Ingenierías. Universidad de Málaga. 2018
Juan F.R. Archilla;Doi, Yusuke;Kimura, Masayuki:
Nonlocal breathers as possible energy carriers in secondary tracks in muscovite. Sesión plenaria en Congreso. VI International Symposium on Strong Nonlinear Vibronic and Electronic Interactions in Solids. Tartu, Estonia. 2018
Juan F.R. Archilla;F. Michael Russell;Zolotaryuk, Yaroslav;Kosevich, Yuriy A.;Doi, Yusuke:
Experiments and theory in solitary waves in muscovite mica. Sesión plenaria en Congreso. International Symposium on Intrinsic Localized Modes: 30th Anniversary of Discovery. Kioto, Japón, Japón. 2018
Sánchez-morcillo, Víctor;Salmerón-contreras, Luis;García-raffi, Luis;Picó, Rubén;Jiménez, Noé;Juan F.R. Archilla:
Nonlinear localized waves in repulsive lattices . Comunicación en congreso. International Mechanical Engineering Congress & Exposition. TAMPA, FL. USA. 2017
Juan F.R. Archilla;Medina-Carrasco, Santiago;Romero-Romero, Francisco:
Grupo de Física No Lineal. Excitaciones localizadas: breathers, solitones, kinks y polarobreathers. Comunicación en congreso. Jornadas de presentación de las líneas de investigación a los alumnos de cuarto curso. Sevilla, España. 2017
Juan F.R. Archilla;Kosevich, Yuriy; Zolotaryuk, Yaroslav;Sánchez-morcillo, Víctor;Jiménez, Noé;García-raffi, Luis:
Nonlinear waves in layered ionic crystals. Ponencia en Congreso. 13th International Conference on Theoretical and Computational Acoustics. Austria, Viena. 2017
Salmerón-contreras, Luis;Jiménez, Noé;Sánchez-morcillo, Víctor;García-raffi, Luis;Picó, Rubén;Juan F.R. Archilla:
Nonlinear waves in a lattice of magnetic dipoles. Comunicación en congreso. 13th International Conference on Theoretical and Computational Acoustics. Austria, Viena. 2017
Juan F.R. Archilla;F. Michael Russell;Frutos-Rayego, Fabian;Kosevich, Yuriy A.:
Localized nonlinear excitations in silicate layers. Sesión plenaria en Congreso. International Workshop on Nonlinear Energy Localization in Crystals and Related Media. KYOTO, JAPAN. 2016
Juan F.R. Archilla;F. Michael Russell;Frutos-Rayego, Fabian;Kosevich, Yuriy A.:
Solitons, discrete breathers and kinks in ionic crystals. Sesión plenaria en Congreso. The soliton concept and its inter-, trans and pluri-disciplinary ubiquity. Truth and consequences. From the macro- to the nano-world. FUNDACIÓN RAMÓN ARECES. MADRID.. 2016
Juan F.R. Archilla;Zolotaryuk, Yaroslav O.;Kosevich, Yuriy A.;Sánchez-morcillo, Víctor J.:
Bound kins states in a model for a cation layer. Ponencia en Congreso. APM-2016: 44th International Conference on Advanced Problems in Mechanics. San Petersburgo , Rusia. 2016
Juan F.R. Archilla;Zolotaryuk, Yaroslav A.;Kosevich, Yuriy A.;Sánchez-morcillo, Víctor J.:
Multiple lattice kinks in a cation lattice. Ponencia en Congreso. NoLineal 2016: International conference on nonlinear mathematics and physics. IMUS, Universidad de Sevilla, Sevilla, España. 2016
Juan F.R. Archilla:
Kinks and charge transport in an ionic crystal . Conferencias impartidas en Congreso. Conference in Instituto Pluridisciplinar of Madrid. - Madrid, España. 2015
Juan F.R. Archilla:
On kinks and charged excitations in mica. Conferencias impartidas en Congreso. Seminar in Semenov Institute of Chemical Physics of the Russian Academy of Sciences, Moscow. ACADEMIA DE CIENCIAS DE RUSIA, MOSCÚ (RUSIA). 2015
Juan F.R. Archilla;F. Michael Russell:
On the charge of quodons. Sesión plenaria en Congreso. Workshop Discrete Breathers in Crystals. Ufa, Rusia. 2015
Juan F.R. Archilla:
On Intrinsic Localized Modes, Breathers and Quodons. Conferencias impartidas en Congreso. Seminar at the Accelerator Laboratory. University of Helsinki. HELSINKI , FINLANDIA. 2015
Coelho, Sergio;Juan F.R. Archilla;Auret, F Danie:
The introduction of subthreshold induced defects in germanium by above threshold radiation exposure. Comunicación en congreso. V International Symposium on Strong Nonlinear Vibronic and Electronic Interaction in Solids. Tartu, Estonia. 2015
Juan F.R. Archilla;Coelho, Sergio;Auret, Danie;Nyamhere, Cloud;Dubinko, Vladimir;Hizhnyakov, Vladimir:
Experimental observation of intrinsic localized modes in germanium. Sesión plenaria en Congreso. V International Symposium on Strong Nonlinear Vibronic and Electronic Interaction in Solids. Tartu, Estonia. 2015
Dubinko, Vladimir;Terentyev, Dmitri;Dubinko, Andrii;Dmitriev, Sergey;Juan F.R. Archilla:
Effect of moving discrete breathers on reaction kinetics in crystals under irradiation. Comunicación en congreso. Reaction Kinetics in Soft and Condensed Matter. Orleans, France. 2014
Archilla, J.F.R.:
Some theorems on the stability of multibreathers in Klein-Gordon Lattices. Conferencias impartidas en Congreso. Seminario invitado en el Departamento de Matemáticas de la Universidad de Portsmouth. PORTSMOUTH, ENGLAND. 2013
Archilla, J.F.R.:
Moving intrinsic localized modes in germanium produced by a low energy plasma. Conferencias impartidas en Congreso. Seminario invitado en el Departamento de Matemáticas de la Universidad de Portsmouth. PORTSMOUTH, ENGLAND. 2013
Jiménez, Noé;Archilla, J.F.R.;Kosevich, Yuriy;Sánchez-morcillo, Víctor;García-raffi, Luís Miguel:
A crowdion in mica. Between K40 recoil and transmission sputtering. Comunicación en congreso. Quodons in mica: nonlinear localized travelling excitations in crystals. Meeting in honour of Mike Russell.. ALTEA , ALICANTE, ESPAÑA. 2013
Juan F.R. Archilla;Coelho, Sergio M;Auret, F Danie;Dubinko, Vladimir;Hizhnyakov, Vladimir:
Experimental observation of moving discrete breathers in germanium. Sesión plenaria en Congreso. Quodons in mica: nonlinear localized travelling excitations in crystals. Meeting in honour of Mike Russell.. ALTEA , ALICANTE, ESPAÑA. 2013
Coelho, Sergio;Auret, Fd;Nel, Jm;Archilla, J.F.R.:
The origin of defects induced in ultra-pure germanium by Electron Beam Deposition.. Comunicación en congreso. Quodons in mica: nonlinear localized travelling excitations in crystals. Meeting in honour of Mike Russell.. ALTEA , ALICANTE, ESPAÑA. 2013
Dubinko, Vladimir;Archilla, J.F.R.;Coelho, Sergio;Hizhnyakov, Vladimir:
Modeling of the annealing of radiation-induced defects in germanium by moving discrete breathers. Comunicación en congreso. Quodons in mica: nonlinear localized travelling excitations in crystals. Meeting in honour of Mike Russell.. ALTEA , ALICANTE, ESPAÑA. 2013
Dubinko, Vladimir;Archilla, J.F.R.:
Effect of anharmonic lattice vibrations on the reaction rates in minerals . Comunicación en congreso. 2013 Goldschmidt Conference: International conference on geochemistry. Florencia, : Florencia (Italia). 2013
Jiménez, Noé;Sánchez-morcillo, Víctor;García-raffi, Luís Miguel;Archilla, J.F.R.:
Kinks supersónicos en redes repulsivas. Comunicación en congreso. XXXIV Reunión Bienal de la Real Sociedad Española de Física. Valencia, España. 2013
Jiménez, Noé;Sánchez-morcillo, Víctor;García-raffi, Luís Miguel;Archilla, J.F.R.;Redondo, J:
Interacción Coulombiana, estorninos y angry birds. Poster en Congreso. 23º Encuentro Ibérico de Enseñanza de la Física.. , Valencia, ESPAÑA,. 2013
Juan F.R. Archilla;Kosevich, Yuriy;Jiménez, Noé;Sánchez-morcillo, Víctor;García-raffi, Luís Miguel:
Effect of ZBL potential on kinks in repusive lattices. Sesión plenaria en Congreso. IV International Symposium on Strong Nonlinear Vibronic and Electronic Interactions in Solids. Tartu, Estonia. 2013
Juan F.R. Archilla;Kosevich, Yuriy;Jiménez, Noé;Sánchez-morcillo, Víctor;García-raffi, Luís:
Supersonic solitons and kinks in repulsive lattices. Ponencia en Congreso. Lattice solitons and irradiation-induced nonlinear phenomena in solids. TARTU, ESTONIA. 2012
Juan F.R. Archilla;Kosevich, Yuriy;Jiménez, Noé;Sánchez-morcillo, Víctor;García-raffi, Luís Miguel:
Moving excitations in a cation lattice .. Ponencia en Congreso. Davydov2012, International Conference Problems of Theoretical Physics, dedicated to the 100th anniversary of Alexander Davydov. KIEV, UCRANIA. 2012
Juan F.R. Archilla;Kosevich, Yuriy:
Kinks in Coulomb's chains. Ponencia en Congreso. 2nd Conference on Localized Excitations in Nonlinear Complex Systems (LENCOS'12). Sevilla, España. 2012
Archilla, J.F.R.;Dubinko, Vladimir;Selyschchev, Pavel:
Breathers in silicate layers. Comunicación en congreso. Nonlinear Effects in Materials under Irradiation,. PRETORIA, SUDAFRICA. 2012
Archilla, J.F.R.;Dubinko, Vladimir;Selyschchev, Pavel:
Kramers reaction rate theory in presence of breathers. Comunicación en congreso. Nonlinear Waves and Solitons in Lattices. EDIMBURGO - REINO UNIDO. 2011
Dubinko, Vladimir;Selyschev, Pavel;Archilla, J.F.R.:
Reaction rate theory with account of discrete breathers. Comunicación en congreso. First Porto Meeting on Theory and Experiment in Nonlinear Physics. Oporto, Portugal. 2010
Alvarez-Chillida, María Azucena;Romero-Romero, Francisco;Juan F.R. Archilla;Romero-Romero, Jose Maria:
COLLISIONS OF DIFFERENT DISCRETE BREATHERS. Poster en Congreso. The 2nd International Conference: Nonlinear Waves Theory And Applications. Tsinghua University, Beijing - China. 2010
Juan F.R. Archilla;Alvarez-Chillida, María Azucena;Romero-Romero, Francisco;Romero-Romero, Jose Maria:
NONSYMMETRIC MOVING BREATHER COLLISIONS IN THE PEYRARD-BISHOP DNA MODEL. Comunicación en congreso. Localized Excitations in Nonlinear Complex Systems (LENCOS 2009). Sevilla, España. 2009
Alvarez-Chillida, María Azucena;Romero-Romero, Francisco;Cuevas-Maraver, Jesús;Juan F.R. Archilla:
MOVING BREATHER COLLISIONS IN THE PEYRARD-BISHOP DNA MODEL. Comunicación en congreso. COMPLEX '2009 The First International Conference On Complex Science . Shangai, China. 2009
Cuevas-Maraver, Jesús;Alvarez-Chillida, María Azucena;Romero-Romero, Francisco;Juan F.R. Archilla:
COLLISIONS OF DISCRETE BREATHERS IN NONLINEAR SCHRÖDINGER AND KLEIN-GORDON LATTICES. Comunicación en congreso. 2nd Conference On Nonlinear Science And Complexity . Oporto, Portugal. 2008
Juan F.R. Archilla;Cuevas-Maraver, Jesús;Romero-Romero, Francisco:
Effect of breather existence on reconstructive transformations in mica muscovite. Poster en Congreso. INTERNATIONAL WORKSHOP ON COMPLEX SYSTEMS. SENDAI, JAPAN. 2007
Juan F.R. Archilla;Cuevas-Maraver, Jesús;Alba-Carranza, Maria Dolores;Naranjo-Muñoz, Moises;Trillo-De Leyva, Jose Maria:
Breather energy spectra for recontructive transformations of mica muscovite. Comunicación en congreso. No Lineal 2007. Nuevos retos y perspectivas de la dinámica no lineal y sus aplicaciones. CIUDAD REAL, ESPAÑA. 2007
Cuevas-Maraver, Jesús;Juan F.R. Archilla;Palmero-Acebedo, Faustino;Alvarez-Chillida, María Azucena;Romero-Romero, Francisco:
Breathers en el modelo de Peyrard-Bishop para el ADN. Poster en Congreso. III Seminario Interdisciplinar Sobre El ADN . Sevilla, España. 2006
Juan F.R. Archilla;Cuevas-Maraver, Jesús;Alba-Carranza, Maria Dolores;Naranjo-Muñoz, Moises;Trillo-De Leyva, Jose Maria:
Discrete breathers and low temperature reconstructive transformations. Poster en Congreso. Nonlinear Physics: Condensed Matter, Dynamical Systems and Biophysics. 60th Birthday Symposium in Honor of Serge Aubry. París, Francia. 2005
Cuevas-Maraver, Jesús;Juan F.R. Archilla;Sanchez-Rey, Bernardo;Romero-Romero, Francisco:
Interaction of moving breathers with vacancies. Poster en Congreso. Nonlinear Physics: Condensed Matter, Dynamical Systems and Biophysics. 60th Birthday Symposium in Honor of Serge Aubry. París, Francia. 2005
Christiansen, Peter L.;Larsen, Peter V;Bang, Ole;Juan F.R. Archilla;Gaididei, Yuri B.:
Energy funnelling and bubble and bend generation in biomolecules. Comunicación en congreso. Nonlinear double day 2005 on Nonlinear excitations: theory and experiments. Sevilla, España. 2005
Juan F.R. Archilla:
Organizador y Chairman del Congreso NLDD 2004. Conferencia Congreso no publicada. Nonlinear Double Day on Macroscopic Effects of Anharmonic Excitations . Sevilla, España. 2004
Cuevas-Maraver, Jesús;Juan F.R. Archilla;Romero-Romero, Francisco;Katerji-acosta, Caisar;Kevrekidis, Panayotis:
Bifurcation analysis of discrete breathers in a nonlinear bent chain of oscillators. Comunicación en congreso. Workshop on Analysis and Continuation of Bifurcations. Sevilla, . España. 2004
Christiansen, Peter L.;Larsen, Peter V.;Bang, Ole;Archilla, J.F.R.;Gaididei, Yuri B.:
Energy funnelling and bubble generation in a bent and twisted DNA model . Comunicación en congreso. Nonlinear Double Day on Macroscopic Effects of Anharmonic Excitations . Sevilla, España. 2004
Juan F.R. Archilla;Cuevas-Maraver, Jesús;Trillo-De Leyva, Jose Maria;Palmero-Acebedo, Faustino:
Discrete breathers for understanding low temperature recontructive transformations. Comunicación en congreso. Nonlinear Double Day on Macroscopic Effects of Anharmonic Excitations . Sevilla, España. 2004
Cuevas-Maraver, Jesús;Katerji-Acosta,Caisar;Juan F.R. Archilla;Palmero-Acebedo, Faustino;Eilbeck-,J Chris:
Interaction of moving breathers with vacancies. Poster en Congreso. NATO-LOCNET Advanced Research Workshop: Intrinsic Localized Modes And Discrete Breathers In Nonlinear Lattices. Erice, Sicily, Italy. 2003
Juan F.R. Archilla;Cuevas-Maraver, Jesús;Sanchez-Rey, Bernardo;Alvarez-Chillida, María Azucena;Romero-Romero, Francisco:
Multibreathers stability theorems and applications. Conferencia Congreso no publicada. NATO-LOCNET Advanced Research Workshop: Intrinsic Localized Modes And Discrete Breathers In Nonlinear Lattices. Erice, Sicily, Italy. 2003
Juan F.R. Archilla:
Organizador y Chairman del Congreso MOBIL, Sevilla 2003. Conferencia Congreso no publicada. Moving Breathers In Inhomogeneous Lattices. LOCNET International Workshop. Sevilla, Spain. 2003
Larsen-,Peter V;Christiansen-,Peter L;Bang-,Ole;Gaididei-,Yu B;Juan F.R. Archilla:
Bubble generation by dipole twisting. Conferencia Congreso no publicada. Moving Breathers In Inhomogeneous Lattices. LOCNET International Workshop. Sevilla, Spain. 2003
Palmero-Acebedo, Faustino;Juan F.R. Archilla;Hennig-,Dirk;Romero-Romero, Francisco:
Radial and twist charge transport in a 3D DNA model. Effect of disorder and impurities. Comunicación en congreso. Moving Breathers In Inhomogeneous Lattices. LOCNET International Workshop. Sevilla, Spain. 2003
Palmero-Acebedo, Faustino;Katerji-acosta, Caisar;Juan F.R. Archilla;Hennig, Dirk;Romero-Romero, Francisco:
Nonlinear charge transport in DNA mediated by twist modes. Comunicación en congreso. LOCNET Training School on Energy localisation and transfer in crystals, biomolecules and Josephson arrays. Les Houches, Francia. 2003
Juan F.R. Archilla:
Randomness and nonlinearity. Comunicación en congreso. LOCNET Mid-term Review Meeting. WARWICK , UK. 2002
Cuevas-Maraver, Jesús;Juan F.R. Archilla;Palmero-Acebedo, Faustino;Romero-Romero, Francisco;Muriel-Patino, Concepción:
Localized oscillations in nonlinear Hamiltonian Klein-Gordon lattices. Breathers and Anderson modes. Poster en Congreso. 16th Workshop on Nonlinear Evolution Equations and Dynamical System 2002. CÁDIZ, ESPAÑA. 2002
Cuevas-Maraver, Jesús;Palmero-Acebedo, Faustino;Juan F.R. Archilla;Romero-Romero, Francisco:
Interaction of moving localized oscillations with a local inhomogeneity in nonlinear Hamiltonian Klein-Gordon lattices. Poster en Congreso. 16th Workshop on Nonlinear Evolution Equations and Dynamical System 2002. CÁDIZ, ESPAÑA. 2002
Sanchez-Rey, Bernardo;Rodríguez-Archilla, Juan Francisco;James-,Guillaume;Cuevas-Maraver, Jesús:
BREATHERS IN FPU SYSTEMS, NEAR AND FAR FROM THE PHONON BAND. Poster en Congreso. -- OTROS -- (3.2002.EL ESCORIAL, ESPAÑA). EL ESCORIAL, ESPAÑA. 2002
Rodríguez-Archilla, Juan Francisco;Hennig-,Dirk;Agarwal-,Jessica:
CHARGE TRANSPORT IN A NONLINEAR, THREE-DIMENSIONAL DNA MODEL WITH DISORDER.. Conferencia Congreso no publicada. -- OTROS -- (3.2002.EL ESCORIAL, ESPAÑA). EL ESCORIAL, ESPAÑA. 2002
Cuevas-Maraver, Jesús;Palmero-Acebedo, Faustino;Rodríguez-Archilla, Juan Francisco;Romero-Romero, Francisco:
INTERACTION OF MOVING BREATHERS WITH IMPURITIES. Comunicación en congreso. -- OTROS -- (3.2002.EL ESCORIAL, ESPAÑA). EL ESCORIAL, ESPAÑA. 2002
Palmero-Acebedo, Faustino;Sanchez-Rey, Bernardo;Cuevas-Maraver, Jesús;Juan F.R. Archilla:
Influence of breathers on shape for a DNA model with long-range interaction. Poster en Congreso. Workshop on Nonlinear Lattice Structure and Dynamics. DRESDEN, GERMANY. 2001
Cuevas-Maraver, Jesús;Palmero-Acebedo, Faustino;Sanchez-Rey, Bernardo;Juan F.R. Archilla:
Static and moving breathers in a DNA model with competing short-range and long-range interaction. Poster en Congreso. Workshop on Nonlinear Lattice Structure and Dynamics. DRESDEN, GERMANY. 2001
Sanchez-Rey, Bernardo;Cuevas-Maraver, Jesús;Romero-Romero, Francisco;Juan F.R. Archilla:
Breathers in a twisted DNA model with long-range interaction. Poster en Congreso. Workshop on Nonlinear Lattice Structure and Dynamics. DRESDEN, GERMANY. 2001
Juan F.R. Archilla;Gaididei-,Yu B;Christiansen-,Peter L;Mingaleev-,S F:
Breathers in a curved chain with long-range interaction. Comunicación en congreso. EU-US Workshop on Discrete Breathers and Intrinsic Localised Modes. HERAKLION ( CRETE, GRECIA). 2001
Juan F.R. Archilla;Eilbeck, J. Chris:
Modelling double strand breaks in irradiated DNA. Poster en Congreso. TRACS- ACCESS - MINOS Users Group Meeting 2001. EDIMBURG, UK. 2001
Juan F.R. Archilla:
. Conferencias impartidas en Congreso. . .
Juan F.R. Archilla:
. Conferencias impartidas en Congreso. . .