INFLUENCE FACTORS AND MANIFESTATIONS OF PRODUCTIVITY

Notion almost unknown before 1950, labor productivity is now commonly used by economists, engineers, sociologists and politicians alike, influencing all the important issues of the time. Under these circumstances, if it is accepted that labor productivity is the driving variable that generates economic progress, it is justified that people need to increase their efforts to enhance, its value through various means. This article presents the findings of a theoretical research literature regarding landmarks in the evolution of labor productivity. Arguments justifying such an approach have been given by the fact that the labor issue presents an interest not only at the micro level, individual (the consequences it has on the individual work), but also at the macro level, societal (employment relations on the market labor, insurance systems and the offer educational services on the market today).

The decisional process of proper selection of managers from railway transport

The current economic context as led to a significant drop of open positions on the workforce market at the same time with the reorganization that many organisations had to accomplish. The consequences haven’t stopped appearing in the way in which, today there are many candidates with working experience who have occupied management positions in other companies and are now in search of new jobs. Some organizations have stopped hiring, as it happened in the case of The National Company CFR S.S., and those that still have open positions for recruitment are focusing on skills, multiple competences and proven expertise in a certain field. On the workforce market this thing means that those candidates who have skills and proven expertise are the most demanded ones. The purpose of this paper has been the identification of an adequate methodology of selection regarding railway staff, needed in the main activities of human resources management. The study is based on using the method of global utility and ranking individuals based on the order of skills in order to choose the most suitable manager so that he can take part in  a training course organized by the European organism with responsibilities in the field of professional development. The research hypothesis has been as it follows: A proper assessment of human resources in order to choose, following MRU new demands regarding railway transport, causes the growth in efficiency in railway management

Open source culture in companies

RESUMEN: En la sociedad actual, el internet y las nuevas tecnologías tienen una importancia muy elevada y son utilizadas por una inmensa cantidad de personas para el desarrollo de multitud de funciones. Ahora podemos ver como en un teléfono móvil, concretamente en un Smartphone o teléfono inteligente, podemos tener información de todo tipo que nos ayude en nuestra vida diaria. Es común, que en él, tengamos diferentes aplicaciones que utilicemos a diario, como por ejemplo las que se basan en la mensajería instantánea, para poder estar comunicados en todo momento, las desarrolladas por una entidad bancaria, que nos permitan conocer el saldo de nuestra cuenta y realizar diferentes transacciones, o mismamente, aquellas aplicaciones de correo electrónico para poder recibir y enviar mensajes. Por otro lado, en el mundo empresarial, podemos ver como la gran mayoría de las empresas e instituciones públicas están en contacto con las nuevas tecnologías, desde un pequeño estanco, que utiliza un ordenador para algunas de sus tareas hasta una gran empresa que tiene toda su información en equipos informáticos y depende de ellos para poder llevar a cabo su actividad. En relación a esta era tecnológica, empiezan a surgir nuevos conceptos de los cuáles no se tiene mucha información como puede ser el caso de la Cultura Open Source. En este documento, se explicará el significado de este movimiento, se indagará acerca del uso que hacen las empresas públicas y privadas de ello, para así conocer algunas de las variables que afectan su elección y poder llevar a cabo un pequeño análisis sobre ellasABSTRACT: Nowadays, on the society, the internet and new technologies have a very high importance and are used by an immense number of people for the development of many functions. Now, we can see how in a mobile phone, specifically in a Smartphone, we can have information of all kinds to help us in our daily lives. It is common that on the Smartphone, we have different applications that we use daily, such as, those based on instant messaging, to be able to be communicated at all times, those developed by a bank that allow us to know the balance of our account and perform different transactions, or even, those email applications to receive and send e-mails. On the other hand, on the business world, we can see how the majority of companies and public institutions are in contact with new technologies, from a small tobacconist, that uses a computer for your activity to a large company that has all your information in computer equipment and depends on them to carry out their activity. In relation to this technological era, new concepts are emerging and we have not much information, such as the case of Open Source Culture. In this document, the meaning of this movement will be explained; it will be inquired about the use made by public and private companies, in order to know some of the variables that affect their choice and to be able to carry out a small analysis about them.Grado en Administración y Dirección de Empresa

Large magnetic anisotropy in mononuclear metal complexes

This review examines mononuclear metal complexes with high magnetic anisotropy and the theoretical approaches used to rationalize their magnetic properties. Electronic structure calculations based on CASSCF (or CASPT2/NEVPT2) methods provide a quantitative agreement of the zero- field splitting parameters either for mononuclear transition metal complexes or for equivalent lanthanide systems. To produce a more qualitative tool for predicting the magnetic anisotropy of metal complexes, we have developed a set of simple models. For transition metal systems, a simple model based on the splitting of the d orbitals, considering the coordination mode of the metal and its electronic configuration, is enough to qualitatively predict the system's magnetic anisotropy. A similar approach does not work with the f orbitals of the lanthanide complexes. As an alternative, we studied the electrostatic field generated by the ligands and found that this magnitude controls the shape and the orientation of the anisotropic electron density. This procedure allows us to rationalize and to predict whether the system will have a strong axial character, and also to determine the direction of the magnetic moment

Does calcium diffusional global feedback leads to slow light adaptation in Drosophila photoreceptors? - A 3D biophysical modelling approach

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Reproducibility of parameters of postocclusive reactive hyperemia measured by diffuse optical tomography

The application of near-infrared spectroscopy (NIRS) to assess microvascular function has shown promising results. An important limitation when using a single source-detector pair, however, is the lack of depth sensitivity. Diffuse optical tomography (DOT) overcomes this limitation using an array of sources and detectors that allow the reconstruction of volumetric hemodynamic changes. This study compares the key parameters of postocclusive reactive hyperemia measured in the forearm using standard NIRS and DOT. We show that while the mean parameter values are similar for the two techniques, DOT achieves much better reproducibility, as measured by the intraclass correlation coefficient (ICC). We show that DOT achieves high reproducibility for muscle oxygen consumption (ICC: 0.99), time to maximal HbO2HbO2 (ICC: 0.94), maximal HbO2HbO2 (ICC: 0.99), and time to maximal HbT (ICC: 0.99). Absolute reproducibility as measured by the standard error of measurement is consistently smaller and close to zero (ideal value) across all parameters measured by DOT compared to NIRS. We conclude that DOT provides a more robust characterization of the reactive hyperemic response and show how the availability of volumetric hemodynamic changes allows the identification of areas of temporal consistency, which could help characterize more precisely the microvasculature