La internacionalización de empresas: relación entre el capital social, las tecnologías de la información relacional y la innovación

Este trabajo tiene como objetivo revisar el proceso de internacionalización de las empresas, estudiando su desempeño exportador y la influencia que ejercen variables como el capital social, las tecnologías de la información relacional (Web 2.0) y la innovación. Para cumplir este propósito se realiza una revisión sobre los fundamentos teóricos y conceptuales sobre la relación entre la internacionalización empresarial, las tecnologías de la información relacional, la innovación y el capital social. Lo que permite formular una hipótesis sobre las relaciones que existen entre estas variables. Hipótesis que se espera validar en un conjunto de empresas del sector del plástico de la Comunidad Valenciana, España, y algunas empresas del Área Metropolitana de la ciudad de Medellín, Colombia

La internacionalización de empresas: relación entre el capital social, las tecnologías de la información relacional y la innovación

Este trabajo tiene como objetivo revisar el proceso de internacionalización de las empresas,estudiando su desempeño exportador y la influencia que ejercen variables comoel capital social, las tecnologías de la información relacional (Web 2.0) y la innovación.Para cumplir este propósito se realiza una revisión sobre los fundamentos teóricos y conceptualessobre la relación entre la internacionalización empresarial, las tecnologías dela información relacional, la innovación y el capital social. Lo que permite formular unahipótesis sobre las relaciones que existen entre estas variables. Hipótesis que se esperavalidar en un conjunto de empresas del sector del plástico de la Comunidad Valenciana,España, y algunas empresas del Área Metropolitana de la ciudad de Medellín, Colombia.Tecnologías de la Información (TIC), Web 2.0, Capital Social, Internacionalización de empresas,Cultura, Innovación

Sistemas de ayuda a las decisiones en la Gestión del Conocimiento y las cooperativas

Organizational Learning and Knowledge Management have always existed amongst leading business organisations. Information technologies greatly facilitate these factors and constitute a clear opportunity for growth in efficiency and effectiveness. This paper gives a systematic overview of Knowledge Management, focusing on competitive decision-making in operational and strategic processes, and identifies possible applications in the cooperative sector.Information Technology, Organisational Learning, Knowledge Management, Cooperatives.

Limitations of Grundy and Kabaila s Simplified Method and Its Repercussion on the Safety and Serviceability of Successively Shored Building Structures

[EN] One of the most critical stages for a structure s safety is its construction process, and this problem is even more acute in buildings with reinforced concrete structures. These structures are usually built by shoring successive floors, so that the most recently poured floor rests on the lower floors by means of shores. It is therefore vitally important to have calculation tools available to estimate the loads to which the shores and slabs will be subjected in each stage of construction. A number of calculation methods have been proposed to date, of which the one proposed by Grundy and Kabaila in 1963 is the best known and most frequently used. This paper analyzes the limitations of Grundy and Kabaila s method by means of a parametric study of finite-element method simulations that identified a large number of situations in which this method presented unsafe results in terms of the estimated loads on slabs. In many situations, therefore, applying this method could gravely affect a building s in-service behavior and durability. The paper s final objectives are to make the reader aware of the limitations of Grundy and Kabaila s method and the need to use the more refined methods that are now available to estimate the loads on shores and slabs in reinforced concrete buildings under constructionThe authors would like to express their gratitude to the Spanish Ministry of Education, Culture and Sport for funding received under the FPU Program (FPU13/02466) and to the Generalitat Valenciana (GV/2015/063).Adam Martínez, JM.; Buitrago Moreno, M.; Moragues Terrades, JJ.; Calderón García, PA. (2017). Limitations of Grundy and Kabaila s Simplified Method and Its Repercussion on the Safety and Serviceability of Successively Shored Building Structures. Journal of Performance of Constructed Facilities. 31(5):1-2. doi:10.1061/(ASCE)CF.1943-5509.0001038S1231

Discrimination of beers by cyclic voltammetry using a single carbon screen-printed electrode

A fast, simple and costless methodology without sample pre-treatment is proposed for the discrimination of beers. It is based on cyclic voltammetry (CV) using commercial carbon screen-printed electrodes (SPCE) and includes a correction of the signals measured with different SPCE units. Data are submitted to partial least squares discriminant analysis (PLS-DA) and support vector machine discriminant analysis (SVM-DA), which allow a reasonable classification of the beers. Also, CV data from beers can be used to predict their alcoholic degree by partial least squares (PLS) and artificial neural networks (ANN). In general, non-linear methods provide better results than linear ones

Las materias de gestión en las carreras de informática

Esta ponencia trata de dar una visión general sobre los conocimientos que debería tener un titulado en informática, relativos al área de gestión. Veremos que de una parte están aquellos conocimientos que le serán útiles a la hora de gestionar proyectos y empresas propias del sector de la informática, y de otra los conocimientos relativos a habilidades interpersonales y gestión en caso de trabajar en sistemas de información de cualquier tipo de organización

La internacionalización de empresas: relación entre el capital social, las tecnologías de la información relacional y la innovación

Este trabajo tiene como objetivo revisar el proceso de internacionalización de las empresas, estudiando su desempeño exportador y la influencia que ejercen variables como el capital social, las tecnologías de la información relacional (Web 2.0) y la innovación. Para cumplir este propósito se realiza una revisión sobre los fundamentos teóricos y conceptuales sobre la relación entre la internacionalización empresarial, las tecnologías de la información relacional, la innovación y el capital social. Lo que permite formular una hipótesis sobre las relaciones que existen entre estas variables. Hipótesis que se espera validar en un conjunto de empresas del sector del plástico de la Comunidad Valenciana, España, y algunas empresas del Área Metropolitana de la ciudad de Medellín, Colombia

A numerical model with varying passive confinement for circular and elliptical concrete-filled steel tubular columns

[EN] In this work, a non-linear 3D numerical model to study concrete-filled tubular (CFST) columns is presented. The numerical model is capable to consider the passive confinement that occurs in the concrete core of CFST columns, under which an increase in the strength and ductility of the element is expected. Passive confinement is governed by the volumetric deformation of the concrete core and by the increment of concrete strength, so it was necessary to define both aspects in the constitutive model. In the volumetric deformation, the elastic and plastic components were included, the latter by using the Drucker-Prager model. Different values for the angle of dilatancy were defined for normal and high strength concrete. The model was validated by using experimental tests performed on stub columns and eccentrically loaded columns. In addition, different section geometries were tested. According to the results, the model was able to describe the non-uniform confinement that appears in the concrete core of CFST columns.Lacuesta Carrión, CD.; Romero García, ML.; Lapuebla-Ferri, A.; Adam Martínez, JM. (2018). A numerical model with varying passive confinement for circular and elliptical concrete-filled steel tubular columns. En Proceedings of the 12th International Conference on Advances in Steel-Concrete Composite Structures. ASCCS 2018. Editorial Universitat Politècnica de València. 409-417. https://doi.org/10.4995/ASCCS2018.2018.7246OCS40941

Vibrating boron-doped diamond electrode: a new, durable and highly sensitive tool for the detection of cadmium

In this paper, a vibrating boron-doped diamond (BDD) electrode electroanalytical device and respective method for the analysis of ultralow concentrations of Cd(II) in water were studied. The enhanced mass transfer on the electrode surface was studied using Ru(NH3)6Cl3. Vibration with 133 Hz frequency enhanced the Ru(III) to Ru(II) reduction by 92.6% compared to a static electrode. The peak current of the anodic stripping voltammetry (ASV) method employed was increased by a factor of 5.3 and 4.7 for 10 and 30 microg L-1 Cd(II) concentrations, respectively, when a frequency of 200 Hz was used. A calibration plot with two linear regions was resolved between 0.01 and 1 microg L-1 and 1-30 microg L-1 with the LOD and LOQ of 0.04 microg L-1 and 0.12 microg L-1, respectively. The applicability of the device and the respective method in the analysis of real environmental samples was successfully verified by analysis of river samples and comparing the results with the ICP analysis presenting high reproducibility and trueness. According to the results of this research, the vibrating BDD electrode with the ASV method has excellent analytical performance without surface modification or regular replacement or polishing of the electrode surface. Combining the exceptional electrochemical and chemical properties of BDD with enhanced mass transfer and signal strength of vibrating electrodes makes the system especially suitable for on-site and online analysis of heavy metals