Reusing Human Resources Management Standards for Employment Services

Employment Services (ESs) are becoming more and more important for Public Administrations where their social implications on sustainability, workforce mobility and equal opportunities play a fundamental strategic importance for any central or local Government. The EU SEEMP project aims at improving facilitate workers mobility in Europe. Ontologies are used to model descriptions of job offers and curricula; and for facilitating the process of exchanging job offer data and CV data between ES. In this paper we present the methodological approach we followed for reusing existing human resources management standards in the SEEMP project, in order to build a common “language” called Reference Ontology

Towards Formal Interaction-Based Models of Grid Computing Infrastructures

Grid computing (GC) systems are large-scale virtual machines, built upon a massive pool of resources (processing time, storage, software) that often span multiple distributed domains. Concurrent users interact with the grid by adding new tasks; the grid is expected to assign resources to tasks in a fair, trustworthy way. These distinctive features of GC systems make their specification and verification a challenging issue. Although prior works have proposed formal approaches to the specification of GC systems, a precise account of the interaction model which underlies resource sharing has not been yet proposed. In this paper, we describe ongoing work aimed at filling in this gap. Our approach relies on (higher-order) process calculi: these core languages for concurrency offer a compositional framework in which GC systems can be precisely described and potentially reasoned about.Comment: In Proceedings DCM 2013, arXiv:1403.768

The Success Story of Gold-Based Catalysts for Gas- and Liquid-Phase Reactions: A Brief Perspective and Beyond

Gold has long held the fascination of mankind. For millennia it has found use in art, cosmetic metallurgy and architecture; this element is seen as the ultimate statement of prosperity and beauty. This myriad of uses is made possible by the characteristic inertness of bulk gold; allowing it to appear long lasting and above the tarnishing experienced by other metals, in part providing its status as the most noble meta

Searching for galactic sources in the Swift GRB catalog

Since the early 1990s Gamma Ray Bursts have been accepted to be of extra-galactic origin due to the isotropic distribution observed by BATSE and the redshifts observed via absorption line spectroscopy. Nevertheless, upon further examination at least one case turned out to be of galactic origin. This particular event presented a Fast Rise, Exponential Decay (FRED) structure which leads us to believe that other FRED sources might also be Galactic. This study was set out to estimate the most probable degree of contamination by galactic sources that certain samples of FREDs have. In order to quantify the degree of anisotropy the average dipolar and quadripolar moments of each sample of GRBs with respect to the galactic plane were calculated. This was then compared to the probability distribution of simulated samples comprised of a combination of isotropically generated sources and galactic sources. We observe that the dipolar and quadripolar moments of the selected subsamples of FREDs are found more than two standard deviations outside those of random isotropically generated samples.The most probable degree of contamination by galactic sources for the FRED GRBs of the Swift catalog detected until February 2011 that do not have a known redshift is about 21 out of 77 sources which is roughly equal to 27%. Furthermore we observe, that by removing from this sample those bursts that may have any type of indirect redshift indicator and multiple peaks gives the most probable contamination increases up to 34% (17 out of 49 sources). It is probable that a high degree of contamination by galactic sources occurs among the single peak FREDs observed by Swift.Comment: Published to A&A, 4 pages, 5 figures, this arXiv version includes appended table with all the bursts considered in this stud

An Ontology for Modelling Human Resources Management based on Standards

Employment Services (ES) are becoming more and more important for Public Administrations where their social implications on sustainability, workforce mobility and equal opportunities play a fundamental strategic importance for any central or local Government. The EU SEEMP (Single European Employment Market-Place) project aims at improving facilitate workers mobility in Europe. Ontologies are used to model descriptions of job offers and curricula; and for facilitating the process of exchanging job offer data and CV data between ES. In this paper we present the methodological approach we followed for reusing existing human resources management standards in the SEEMP project, in order to build a common “language” called Reference Ontology

Methodology for Reusing Human Resources Management Standards

Employment Services (ESs), Public ones (PESs) and Private ones (PrEAs), are becoming more and more important for Public Administrations where their social implications on sustainability, workforce mobility and equal opportunities play a fundamental strategic importance for any central or local Government. The EU SEEMP (Single European Employment Market-Place) project aims at improving facilitate workers mobility in Europe. Ontologies are used to model descriptions of job offers and curricula; and for facilitating the process of exchanging job offer data and CV data between ES. In this paper we present the methodological approach we followed for reusing existing human resources management standards like NACE, ISCO-88 (COM) and FOET, among others, in the SEEMP project, in order to build a common “language” called Reference Ontology

Transporte de fósforo en un Ultisol bajo pastura

Broadcast applications of inorganic fertilizer and organic amendments to pastures can contribute significant phosphorus (P) loads to surface waters. An experiment was conducted to quantify edge of field P concentrations in runoff and mass losses from plots in an Ultisol-Oxisol complex amended with two inorganic P levels [44 kg P/ha/yr (44PI) and 131 kg P/ha/yr (131 PI)], and an organic P source (broiler litter) [131 kg P/ha/yr (131 PC-)]. The total amount of P was split in two applications for the organic treatment and in four for the inorganic treatments. Vegetation within plots was mainly naturalized tropical pastures (80% coverage) and the soil slope was between 10 and 12%. Hydrologic discharge, suspended sediments, dissolved P and total P (TP) were quantified over a one-year period to 7 August 2003. Runoff from each field was diverted to a fractionator, where 1 or 10% was collected. Of the 174 precipitation events, 59 resulted in significant runoff, and hydrologic discharge accounted for 22% to 35% of the total rainfall (164.3 cm). Sediment losses ranged from 230 to 818 kg/ha. Cumulative TP mass losses were 3.19, 7.04, and 5.02 kg P/ha, for the 44PI, 131 PI, and 131PO treatments, respectively. These losses corresponded to 7.3, 4.9, and 3.5% of the annual P applied in the treatments 44PI, 131 PI, and 131PO, respectively. Although the magnitude of P losses was relatively low from an agricultural production standpoint, these can impact surface-water quality via nutrient enrichment. The greatest magnitude of TP mass losses occurred when application coincided with frequent intense rainfall events. RESUMEN Las aplicaciones de fertilizantes y enmiendas orgánicas a los suelos pueden contribuir cantidades significativas de fósforo (P) a las aguas superficiales. Se realizó un experimento para cuantificar las concentraciones de P en la escorrentía y las pérdidas en masa de P al borde de predio en un Ultisol enmendado con dos niveles de superfosfato triple como fuente inorgánica de P [44 kg P/ha/año (44 Pl) y 131 kg P/ha/año (131PI)] y una fuente orgánica de P [131 kg P/ha/año (131PO)] aplicado como pollinaza. La aplicación de P se fraccionó en dos para la fuente orgánica y en cuatro para la fuente inorgánica. La vegetación dentro de los predios era principalmente de pasturas tropicales naturalizadas y la pendiente varió entre 10 y 12%. La descarga hidrológica, sedimentos suspendidos, P disuelto y P total se cuantificaron durante un año. La escorrentía de cada parcela se canalizó hacia un fraccionador donde se recolectó el 1% o el 10% de la misma. De los 174 eventos de precipitación, 59 resultaron en escorrentía significativa, y la descarga hidrológica varió entre 22 y 35% de la totalidad (164.3 cm). Las pérdidas de sedimento variaron entre 230 y 818 kg/ha/año. Las pérdidas de P cumulativas fueron 3.19, 7.04, y 5.02 kg P/ha, para los tratamientos 44PI, 131 PI, y 131PO, respectivamente. Desde una perspectiva de producción agrícola, la magnitud de las pérdidas de P fueron bajas, pero estas cantidades pueden afectar las aguas superficiales vía el enriquecimiento nutricional. Las mayores pérdidas de P ocurrieron en periodos de tiempo cuando la aplicación coincidió con eventos de lluvia de relativamente alta intensidad y frecuencia. Las aplicaciones de fertilizantes y enmiendas orgánicas a los suelos pueden contribuir cantidades significativas de fósforo (P) a las aguas superficiales. Se realizó un experimento para cuantificar las concentraciones de P en la escorrentía y las pérdidas en masa de P al borde de predio en un Ultisol enmendado con dos niveles de superfosfato triple como fuente inorgánica de P [44 kg P/ha/año (44 Pl) y 131 kg P/ha/año (131PI)] y una fuente orgánica de P [131 kg P/ha/año (131PO)] aplicado como pollinaza. La aplicación de P se fraccionó en dos para la fuente orgánica y en cuatro para la fuente inorgánica. La vegetación dentro de los predios era principalmente de pasturas tropicales naturalizadas y la pendiente varió entre 10 y 12%. La descarga hidrológica, sedimentos suspendidos, P disuelto y P total se cuantificaron durante un año. La escorrentía de cada parcela se canalizó hacia un fraccionador donde se recolectó el 1% o el 10% de la misma. De los 174 eventos de precipitación, 59 resultaron en escorrentía significativa, y la descarga hidrológica varió entre 22 y 35% de la totalidad (164.3 cm). Las pérdidas de sedimento variaron entre 230 y 818 kg/ha/año. Las pérdidas de P cumulativas fueron 3.19, 7.04, y 5.02 kg P/ha, para los tratamientos 44PI, 131 PI, y 131PO, respectivamente. Desde una perspectiva de producción agrícola, la magnitud de las pérdidas de P fueron bajas, pero estas cantidades pueden afectar las aguas superficiales vía el enriquecimiento nutricional. Las mayores pérdidas de P ocurrieron en periodos de tiempo cuando la aplicación coincidió con eventos de lluvia de relativamente alta intensidad y frecuencia

Decays Z' -> \gamma\gamma\gamma{} and Z -> \gamma\gamma\gamma{} in the minimal 331 model

The possibility of a significant effect of exotic particles on the Z'->\gamma\gamma\gamma{} and Z->\gamma\gamma\gamma{} decays is investigated in the context of the minimal 331 model. This model, which is based in the SU_C(3)xSU_L(3)xU_X(1) gauge group, predicts the existence of many exotic charged particles that can significantly enhance the decay widths. It is found that the standard model prediction for the Z->\gamma\gamma\gamma{} decay remains essentially unchanged, as the new physics effects quickly decouples. On the other hand, it is found that the contributions of the new exotic quarks and gauge bosons predicted by this model lead to a branching fraction for the Z'->\gamma\gamma\gamma{} decay of about 10^(-6), which is about three orders of magnitude larger than that of the Z->\gamma\gamma\gamma{} decay.Comment: 20 pages and 20 figure