219 research outputs found

    Logistics operation hiring process in Colombia: the implementation of a crosscutting logistics operator

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    Este artículo tiene como objetivo presentar los criterios que se deben tener en cuenta para contratar los servicios de los operadores logísticos. Las evidencias presentadas en este artículo se basan en información obtenida a través de encuestas, entrevistas, estudio de casos, sondeos y revisión de literatura. La principal conclusión muestra que la claridad contractual es clave en el surgimiento de un nuevo modelo de negocio que puede impulsar el desarrollo del país. Las empresas deben ver la contratación logística con una oportunidad estratégica, al igual que pensar en cada posible situación que se pueda presentar para así plasmar un curso de acción en el contratoThe main objective of this paper is to present opinions that must be bared in mind when hiring ser­vices from logistics operators. The evidence presented in this paper was obtained from information gathered from surveys, interviews, case studies, polls, and literature reviews. The main conclusion shows that contractual clarity is key during the upsurge of a new business model that can drive the development of the country. Businesses must see the hiring of logistics services as a strategic op­portunity as well as listing all the possible situations that can arise in order to include in the contract a course of action to be followed

    LOGISTICS OPERATION HIRING PROCESS IN COLOMBIA: THE IMPLEMENTATION OF A CROSSCUTTING LOGISTICS OPERATOR

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    The main objective of this paper is to present opinions that must be bared in mind when hiring ser­vices from logistics operators. The evidence presented in this paper was obtained from information gathered from surveys, interviews, case studies, polls, and literature reviews. The main conclusion shows that contractual clarity is key during the upsurge of a new business model that can drive the development of the country. Businesses must see the hiring of logistics services as a strategic op­portunity as well as listing all the possible situations that can arise in order to include in the contract a course of action to be followed.Este artículo tiene como objetivo presentar los criterios que se deben tener en cuenta para contratar los servicios de los operadores logísticos. Las evidencias presentadas en este artículo se basan en información obtenida a través de encuestas, entrevistas, estudio de casos, sondeos y revisión de literatura. La principal conclusión muestra que la claridad contractual es clave en el surgimiento de un nuevo modelo de negocio que puede impulsar el desarrollo del país. Las empresas deben ver la contratación logística con una oportunidad estratégica, al igual que pensar en cada posible situación que se pueda presentar para así plasmar un curso de acción en el contratoThe main objective of this paper is to present opinions that must be bared in mind when hiring ser­vices from logistics operators. The evidence presented in this paper was obtained from information gathered from surveys, interviews, case studies, polls, and literature reviews. The main conclusion shows that contractual clarity is key during the upsurge of a new business model that can drive the development of the country. Businesses must see the hiring of logistics services as a strategic op­portunity as well as listing all the possible situations that can arise in order to include in the contract a course of action to be followed

    Thematic Trends Around Gamification in MOOC: A Bibliometric Analysis

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    Currently, educational systems have assumed a relevant role in developing knowledge and strengthening skills in individuals, an aspect that has become a determining factor for the advancement of society. However, these systems present constant challenges, especially influenced by the advance in information and communication technologies, access to the Internet, and mobile devices, which implies transformations in the new paradigms of teaching and learning methodologies. In this scenario, gamification has been one of the strategies used within virtual learning environments such as MOOCs to increase student motivation in the development of courses. In the last decade, interest in this topic has been evidenced. Therefore, this study aims to identify the main research trends in studies on gamification in MOOCs in the last ten years. For this purpose, a bibliometric analysis was carried out using the Scopus database, from which 265 publications were obtained. The main actors (authors and journals) most cited and thematic trends were identified based on the recurrence of keywords. Among the findings, it was identified that researchers are interested in e-Learning, motivation, online learning, serious games, student engagement, badges and rewards, and the use of the Internet as a tool for learning.info:eu-repo/semantics/publishedVersio

    Latitude dictates plant diversity effects on instream decomposition

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    Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low and high functional diversity in 40 streams on 6 continents and spanning 113 degrees of latitude. Despite important variability in our dataset, we found latitudinal differences in the effect of litter functional diversity on decomposition, which we explained as evolutionary adaptations of litter-consuming detritivores to resource availability. Specifically, a balanced diet effect appears to operate at lower latitudes versus a resource concentration effect at higher latitudes. The latitudinal pattern indicates that loss of plant functional diversity will have different consequences on carbon fluxes across the globe, with greater repercussions likely at low latitudes

    Determinants of penetrance and variable expressivity in monogenic metabolic conditions across 77,184 exomes

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    Penetrance of variants in monogenic disease and clinical utility of common polygenic variation has not been well explored on a large-scale. Here, the authors use exome sequencing data from 77,184 individuals to generate penetrance estimates and assess the utility of polygenic variation in risk prediction of monogenic variants

    Sloan Digital Sky Survey IV: mapping the Milky Way, nearby galaxies, and the distant universe

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    We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median ). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July

    Bose-Einstein correlations of charged hadrons in proton-proton collisions at s\sqrt s = 13 TeV

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    Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at s \sqrt{s} = 13 TeV. The results are based on data collected using the CMS detector at the LHC during runs with a special low-pileup configuration. Three analysis techniques with different degrees of dependence on simulations are used to remove the non-Bose-Einstein background from the correlation functions. All three methods give consistent results. The measured lengths of homogeneity are studied as functions of particle multiplicity as well as average pair transverse momentum and mass. The results are compared with data from both CMS and ATLAS at s \sqrt{s} = 7 TeV, as well as with theoretical predictions.[graphic not available: see fulltext]Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at s=\sqrt{s} = 13 TeV. The results are based on data collected using the CMS detector at the LHC during runs with a special low-pileup configuration. Three analysis techniques with different degrees of dependence on simulations are used to remove the non-Bose-Einstein background from the correlation functions. All three methods give consistent results. The measured lengths of homogeneity are studied as functions of particle multiplicity as well as average pair transverse momentum and mass. The results are compared with data from both CMS and ATLAS at s=\sqrt{s} = 7 TeV, as well as with theoretical predictions

    Measurement of the Splitting Function in &ITpp &ITand Pb-Pb Collisions at root&ITsNN&IT=5.02 TeV

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    Data from heavy ion collisions suggest that the evolution of a parton shower is modified by interactions with the color charges in the dense partonic medium created in these collisions, but it is not known where in the shower evolution the modifications occur. The momentum ratio of the two leading partons, resolved as subjets, provides information about the parton shower evolution. This substructure observable, known as the splitting function, reflects the process of a parton splitting into two other partons and has been measured for jets with transverse momentum between 140 and 500 GeV, in pp and PbPb collisions at a center-of-mass energy of 5.02 TeV per nucleon pair. In central PbPb collisions, the splitting function indicates a more unbalanced momentum ratio, compared to peripheral PbPb and pp collisions.. The measurements are compared to various predictions from event generators and analytical calculations.Peer reviewe

    Studies of Beauty Suppression via Nonprompt D-0 Mesons in Pb-Pb Collisions at root s(NN)=5.02 TeV

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    The transverse momentum spectra of D-0 mesons from b hadron decays are measured at midrapidity (vertical bar y vertical bar D-0 yield is found to be suppressed in the measured p(T) range from 2 to 100 GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D-0 mesons and charged hadrons for p(T) around 10 GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B -> D-0 suppression at higher p(T), the data show an indication of larger suppression than the model predictions in the range of 2 <p(T) <5 GeV/c.Peer reviewe
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