1,168 research outputs found

    Estrategias de organizaciones gubernamentales y de la iniciativa privada para crear una infraestructura educativa respecto a las nuevas tecnologías de la comunicación y la información en México

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    1 archivo PDF (12 páginas). magyedtaRESUMEN: Actualmente vivimos en una sociedad en la cual el conocimiento y la tecnología son el principal capital del desarrollo y el crecimiento económico- social mundial. Esta nueva era está enmarcada en un mundo globalizado, en el que el conocimiento desempeña un papel trascendente, junto con las nuevas tecnologías de la comunicación y la información (NTCI). Por lo anterior, en este documento se analizan algunos de los programas gubernamentales y de organizaciones privadas de nuestro país enfocados a crear las condiciones y la infraestructura necesaria para incrementar e impulsar el uso de las NTCI, que permitan que las nuevas generaciones de trabajadores y profesionistas del país enfrenten competitivamente el actual mundo global, en el que la presencia y el uso de las NTCI son trascendentes para el éxito individual, organizacional y el desarrollo de las naciones. Abstract Actually, we live in a knowledge and technological society which they are the main socioeconomical growth motor worldwide. This new age is a global world, where the main actor is the knowledge and the new communication and information technologies (NTCI Spanish initials). That’s why he analyses some of the public and private programs in Mexico, programs created for giving the conditional factors and the needed infrastructure in order to increase and promote NTCI use, to allow competitive confronting and individual-organizational-country success and growth, among new workers-professionals generations. PALABRAS CLAVE: Infraestructura, mundo global. KEYWORDS: Infrastructure, global world

    Beetle-transmitted viruses

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    One group of bean diseases with characteristic virus symptoms is the mosaic group, frequently associated with leaf and plant malformations and green and yellow stippling. Insect vectors belong to the families Chrysomelidae, Coccinelidae, and Meloidae. This group of virus contains the bean southern mosaic virus (BSMV), the bean mild mosaic virus (BMMV), the bean rugose mosaic virus (BRMV), the bean pod mottle virus (BPMV), the bean curly dwarf mosaic virus (BCDMV), and the bean yellow stipple virus (BYSV). The geographic distribution, economic importance, host plants, physical properties, purification, transmission, epidemiology, symptomatology, and control measures are given for each one. The symptoms and damage caused by the diseases are illustrated in color. (CIAT)Un grupo de enfermedades del frijol con sintomas caracteristicos de los producidos por los virus es el de los mosaicos, frecuentemente asociados con deformaciones de las hojas y de las plantas y moteado verde o amarillo. Los insectos vectores son de las familias Chrysomelidae, Coccinelidae y Meloidae. En este grupo de virus tenemos el virus del mosaico sureno del frijol (BSMV), el virus del mosaico suave del frijol (BMMV), el virus del mosaico rugoso del frijol (BRMV), el virus del moteado de la vaina del frijol (BPMV), el virus del mosaico y enanismo rizado del frijol (BCDMV) y el virus del moteado amarillo del frijol (BYSV). Para cada uno se presenta su distribucion geografica, importancia economica, plantas hospedantes, propiedades fisicas, purificacion, transmision, epidemiologia, sintomatologia y medidas de control. Se ilustran a color los sintomas y danos causados por las enfermedades. (CIAT

    The Ciao clp(FD) library. A modular CLP extension for Prolog

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    We present a new free library for Constraint Logic Programming over Finite Domains, included with the Ciao Prolog system. The library is entirely written in Prolog, leveraging on Ciao's module system and code transformation capabilities in order to achieve a highly modular design without compromising performance. We describe the interface, implementation, and design rationale of each modular component. The library meets several design goals: a high level of modularity, allowing the individual components to be replaced by different versions; highefficiency, being competitive with other TT> implementations; a glass-box approach, so the user can specify new constraints at different levels; and a Prolog implementation, in order to ease the integration with Ciao's code analysis components. The core is built upon two small libraries which implement integer ranges and closures. On top of that, a finite domain variable datatype is defined, taking care of constraint reexecution depending on range changes. These three libraries form what we call the TT> kernel of the library. This TT> kernel is used in turn to implement several higher-level finite domain constraints, specified using indexicals. Together with a labeling module this layer forms what we name the TT> solver. A final level integrates the CLP (J7©) paradigm with our TT> solver. This is achieved using attributed variables and a compiler from the CLP (J7©) language to the set of constraints provided by the solver. It should be noted that the user of the library is encouraged to work in any of those levels as seen convenient: from writing a new range module to enriching the set of TT> constraints by writing new indexicals

    One-loop corrections for WW to HH in Higgs EFT with the electroweak chiral Lagrangian

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    In this work, we present the computation of the one-loop electroweak radiative corrections to the scattering process WW → HH within the context of the Higgs Effective Field Theory (HEFT). We assume that the fermionic interactions are like in the Standard Model, whereas the beyond Standard Model interactions in the bosonic sector are given by the electroweak chiral Lagrangian (EChL). The computation of the one-loop amplitude and the renormalization program is performed in terms of the involved one-particle-irreducible (1PI) functions and using Rζ covariant gauges. The renormalization of 1PI functions at arbitrary external momenta is a more ambitious program than just renormalizing the amplitude with on-shell external legs, and it has the advantage that they can be used in several scattering amplitudes. In fact, we use here some of the 1PI functions already computed in our previous work (devoted to WZ → WZ). We will complement them here with the computation of the new 1PI functions required for WW → HH. From this renormalization procedure, we will also derive the full set of renormalized coefficients of the EChL that are relevant for this scattering process. In the last part, we will present the numerical results for the EChL predictions of the one-loop level cross section, σ(WW → HH)|1-loop, as a function of the center-of-mass energy, showing the relative size of the one-loop radiative corrections with respect to the tree-level prediction in terms of the EChL coefficients. The results of the one-loop corrections to WW → HH for the SM case will be also presented, for comparison with the EChL case, following the same computational method - i.e., by means of the renormalization of 1PI function
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