Extended Networks of Evolutionary Processors

This paper presents an extended behavior of networks of evolutionary processors. Usually, such nets are able to solve NP-complete problems working with symbolic information. Information can evolve applying rules and can be communicated though the net provided some constraints are verified. These nets are based on biological behavior of membrane systems, but transformed into a suitable computational model. Only symbolic information is communicated. This paper proposes to communicate evolution rules as well as symbolic information. This idea arises from the DNA structure in living cells, such DNA codes information and operations and it can be sent to other cells. Extended nets could be considered as a superset of networks of evolutionary processors since permitting and forbidden constraints can be written in order to deny rules communication

String Measure Applied to String Self-Organizing Maps and Networks of Evolutionary Processors

* Supported by projects CCG08-UAM TIC-4425-2009 and TEC2007-68065-C03-02This paper shows some ideas about how to incorporate a string learning stage in self-organizing algorithms. T. Kohonen and P. Somervuo have shown that self-organizing maps (SOM) are not restricted to numerical data. This paper proposes a symbolic measure that is used to implement a string self-organizing map based on SOM algorithm. Such measure between two strings is a new string. Computation over strings is performed using a priority relationship among symbols; in this case, symbolic measure is able to generate new symbols. A complementary operation is defined in order to apply such measure to DNA strands. Finally, an algorithm is proposed in order to be able to implement a string self-organizing map

Competencias profesionales en la formación profesional

Bibliog.: pp. [111]-11

Estudio de la osteointegración y posibles alteraciones provocadas por el empleo de implantes dentales en hueso inmaduro. Estudio experimental en mini pigs

El empleo de implantes dentales se ha convertido en práctica habitual en la odontología humana actual, siendo su empleo cada vez más frecuente. Esto es debido tanto a los buenos resultados, como a la reducción de costes de esta técnica, lo que permite un mayor acceso al público general. El cerdo ha sido utilizado como modelo experimental en muchos trabajos de investigación, tanto en medicina humana como veterinaria. Hay multitud de artículos publicados que hacen referencia a su utilización en campos como la anestesia, traumatología, cardiología, odontología, etc. Actualmente en odontología los implantes osteointegrados tiene gran importancia y en la mayoría de los estudios se hace referencia casi en su totalidad al comportamiento de estos, en sus diferentes modalidades, en pacientes adultos con hueso maduro. Sólo algunas publicaciones recientes describen el empleo de estas técnicas en niños con casos graves de edentulismo. Por esta razón se planteó llevar a cabo este estudio en animales jóvenes sobre hueso inmaduro y de esta manera podría obtenerse información acerca de los problemas que podrían plantearse durante todo el proceso, desde su colocación hasta su posible osteointegración..

A vocational training system based on competencies

Teaching and learning methods based on competencies, as opposed to more traditional approaches, which are based on the mere transmission of knowledge, involve reviewing curricular content so as to cover more instrumental elements, including the teaching of procedural techniques, attitudes and employment skills. These newly designed curricula are comprised of the same constituents as the so referred traditional ones: objectives, subject matter's content and assessment criteria. Assessment is individual and cumulative. But one of the most reiterated criticisms comes from the fact that the above mentioned curricular constituents have not been developed by teaching experts but by people outside the education world. Others take a critical view by denying that professional skills can be divided into basic standards, artificially separated into isolated units, whose addition may constitute a "competency unit". Finally, another relevant problem is related to one of the most conclusive and classical matters of teaching approaches: the problem of achieving successful learning transfer

La formación profesional basada en la competencia

Teaching and learning methods based on competencies, as opposed to more traditional approaches, which are based on the mere transmission of knowledge, involve reviewing curricular content so as to cover more instrumental elements, including the teaching of procedural techniques, attitudes and employment skills. These newly designed curricula are comprised of the same constituents as the so referred traditional ones: objectives, subject matter's content and assessment criteria. Assessment is individual and cumulative. But one of the most reiterated criticisms comes from the fact that the above mentioned curricular constituents have not been developed by teaching experts but by people outside the education world. Others take a critical view by denying that professional skills can be divided into basic standards, artificially separated into isolated units, whose addition may constitute a "competency unit". Finally, another relevant problem is related to one of the most conclusive and classical matters of teaching approaches: the problem of achieving successful learning transfer.Frente a enfoques tradicionales de la formación (basada en el conocimiento), el enfoque de la formación basada en la competencia (FBC) reivindica el carácter instrumental de la formación: adquirir las competencias profesionales requeridas en el empleo, lo cual implica adquirir conocimientos sobre hechos y conceptos; pero también adquirir conocimientos o saberes sobre procedimientos y actitudes. El currículo diseñado desde el enfoque de la FBC consta de los mismos componentes que caracterizan a cualquier currículo; es decir, consta de objetivos, contenidos formativos y criterios de evaluación, que enmarcan las actividades y los procesos de enseñanza y aprendizaje que constituyen cualquier proceso formativo. La evaluación promovida por la FBC tiene un carácter individualizado y acumulativo, lo que requiere haber alcanzado todos y cada uno de los objetivos formativos de dicho programa. Entre las críticas más generalizadas, una se refiere a que en los programas formativos diseñados, el objetivo de la formación, los criterios de evaluación y en gran medida los contenidos formativos, no son establecidos por los propios docentes, sino que se establecen fuera del mundo de la enseñanza. Algunos críticos niegan que la competencia profesional esté constituida por una relación de estándares elementales, diferenciados artificialmente en unidades aisladas y cuya agregación mecánica configura una unidad de competencia. Otra crítica relevante tiene que ver con uno de los problemas más clásicos y decisivos de la formación: el problema de la transferibilidad de los aprendizajes

Trilepton signals: the golden channel for seesaw searches at LHC

Contribution to the Proceedings of the XXXIII International School of Theoretical Physics "Matter To The Deepest", Ustron, Poland, September 11-16, 2009.The comparison of samples with different number of charged leptons shows that trilepton signals are the most significant ones for seesaw mediators. As previously pointed out, this is indeed the case for scalar (type II) and fermion (type III) triplets at LHC, which can be discovered in this channel for masses up to 500-700 GeV and an integrated luminosity of 30 fb^-1; whereas fermion singlets (type I) are marginally observable if there are no further new physics near the TeV scale. However, if there are new gauge interactions at this scale coupling to right-handed neutrinos, as in left-right models, heavy neutrinos are observable up to masses ~ 2 TeV for new gauge boson masses up to ~ 4 TeV, as we discuss in some detail

New neutrino interactions at large colliders

35th International Conference of High Energy Physics - ICHEP2010, July 22-28, 2010, Paris (France). PoS(ICHEP 2010) 296.We update present bounds on the helicity of the neutrinos produced in muon decay, including e+e− ! f f LEP 2 data. These significantly reduce the limits derived from all the other electroweak precision data. In Standard Model extensions designed to maximize the RH neutrino production in such a decay the neutrino deficit eventually observable in a near detector at a neutrino factory can be of the order of 5 %. Motivated by the current LHC run at 7 TeV, we also update previous work providing discovery limits on see-saw mediators at this centre of mass energy. Lepton triplets with 200 GeV could be discovered with luminosities of 1 - 1.5 fb−1. Scalar triplets of the same mass might be seen with 0.75 - 3 fb−1. What makes their search also attractive in the first LHC analyses.This work has been partially supported by MICINN (FPA2006-05294), Junta de Andalucía (FQM 101, FQM 03048) and the European Union (MRTN-CT-2006-035505)

Vacuum tribological behaviour of self lubricant quasicrystalline composite coatings

High temperature resistant self-lubricant coatings are needed in space vehicles for components that operate at high temperatures and/or under vacuum. Thick composite lubricant coatings containing quasicrystalline alloys (QC) as the hard phase for wear resistance, have been deposited by thermal spray. The coatings also comprise lubricating materials (silver and BaF2-CaF2 eutectic) and NiCr as the tough component. This paper describes the vacuum tribological properties of TH103, a coating belonging to this family, with excellent microstructural quality. The coating was deposited by HVOF and tested under vacuum on a pin-on-disc tribometer. Different loads, linear speeds and pin materials were studied. The pin scars and disc wear tracks were characterized by EDS-SEM. A minimum mean steady friction coefficient of 0.32 was obtained employing a X-750 Ni superalloy pin in vacuum conditions under 10 N load and 15 cm/s linear speed, showing moderate wear of the disc and low wear of the pin

Looking for signals beyond the neutrino standard model

Presented at the XXXI International Conference of Theoretical Physics, “Matter to the Deepest”, Ustroń, Poland, September 5–11, 2007.Any new neutrino physics at the TeV scale must include a suppression mechanism to keep its contribution to light neutrino masses small enough. We review some seesaw model examples with weakly broken lepton number, and comment on the expected effects at large colliders and in neutrino oscillations.This work has been supported by MEC project FPA2006-05294, Junta de Andalucía projects FQM 101 and FQM 437, and by the European Community’s Marie-Curie Research Training Network under contract MRTN-CT-2006-035505 “Tools and Precision Calculations for Physics Discoveries at Colliders”. J.A.A.-S. acknowledges support by a MEC Ramón y Cajal contract. J.B. also thanks MEC for an FPU grant