1,909 research outputs found

    Debates sobre procedimientos de deteccion de conductas sospechosas en AVSEC

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    Las tareas cotidianas realizadas por los agentes de seguridad aeroportuaria incluyen procedimientos informales o semi-formales basados en la experiencia adquirida, los cuales complementan a los mecanismos formales utilizados en los puntos de inspección y registro previos al embarque en el Aeropuerto Internacional de Ezeiza. Sin embargo, tales procedimientos que comprenden ciertas técnicas de detección de comportamientos sospechosos, no han sido examinados sistemáticamente, ni documentados, e incluso escasas veces han sido sometidos a discusión en nuestro país. Con el objeto de comprender en profundidad la manera en que se aplican las medidas de seguridad a nivel local, de analizar las ventajas y desventajas de los procedimientos que actualmente se llevan a cabo en los aeropuertos, y de generar propuestas para optimizar la labor de los responsables de la seguridad aeroportuaria argentina, el trabajo expuesto en este congreso reúne las discusiones actuales en torno a la problemática de las metodologías empleadas para identificar sospechosos y consecuentemente someterlos a controles adicionales, y esboza propuestas de análisis de la misma en el contexto argentino.Facultad de Ingenierí

    Debates sobre procedimientos de deteccion de conductas sospechosas en AVSEC

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    Las tareas cotidianas realizadas por los agentes de seguridad aeroportuaria incluyen procedimientos informales o semi-formales basados en la experiencia adquirida, los cuales complementan a los mecanismos formales utilizados en los puntos de inspección y registro previos al embarque en el Aeropuerto Internacional de Ezeiza. Sin embargo, tales procedimientos que comprenden ciertas técnicas de detección de comportamientos sospechosos, no han sido examinados sistemáticamente, ni documentados, e incluso escasas veces han sido sometidos a discusión en nuestro país. Con el objeto de comprender en profundidad la manera en que se aplican las medidas de seguridad a nivel local, de analizar las ventajas y desventajas de los procedimientos que actualmente se llevan a cabo en los aeropuertos, y de generar propuestas para optimizar la labor de los responsables de la seguridad aeroportuaria argentina, el trabajo expuesto en este congreso reúne las discusiones actuales en torno a la problemática de las metodologías empleadas para identificar sospechosos y consecuentemente someterlos a controles adicionales, y esboza propuestas de análisis de la misma en el contexto argentino.Facultad de Ingenierí

    Debates sobre procedimientos de deteccion de conductas sospechosas en AVSEC

    Get PDF
    Las tareas cotidianas realizadas por los agentes de seguridad aeroportuaria incluyen procedimientos informales o semi-formales basados en la experiencia adquirida, los cuales complementan a los mecanismos formales utilizados en los puntos de inspección y registro previos al embarque en el Aeropuerto Internacional de Ezeiza. Sin embargo, tales procedimientos que comprenden ciertas técnicas de detección de comportamientos sospechosos, no han sido examinados sistemáticamente, ni documentados, e incluso escasas veces han sido sometidos a discusión en nuestro país. Con el objeto de comprender en profundidad la manera en que se aplican las medidas de seguridad a nivel local, de analizar las ventajas y desventajas de los procedimientos que actualmente se llevan a cabo en los aeropuertos, y de generar propuestas para optimizar la labor de los responsables de la seguridad aeroportuaria argentina, el trabajo expuesto en este congreso reúne las discusiones actuales en torno a la problemática de las metodologías empleadas para identificar sospechosos y consecuentemente someterlos a controles adicionales, y esboza propuestas de análisis de la misma en el contexto argentino.Facultad de Ingenierí

    Translating land cover/land use classifications to habitat taxonomies for landscape monitoring: A Mediterranean assessment

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    Periodic monitoring of biodiversity changes at a landscape scale constitutes a key issue for conservation managers. Earth observation (EO) data offer a potential solution, through direct or indirect mapping of species or habitats. Most national and international programs rely on the use of land cover (LC) and/or land use (LU) classification systems. Yet, these are not as clearly relatable to biodiversity in comparison to habitat classifications, and provide less scope for monitoring. While a conversion from LC/LU classification to habitat classification can be of great utility, differences in definitions and criteria have so far limited the establishment of a unified approach for such translation between these two classification systems. Focusing on five Mediterranean NATURA 2000 sites, this paper considers the scope for three of the most commonly used global LC/LU taxonomies—CORINE Land Cover, the Food and Agricultural Organisation (FAO) land cover classification system (LCCS) and the International Geosphere-Biosphere Programme to be translated to habitat taxonomies. Through both quantitative and expert knowledge based qualitative analysis of selected taxonomies, FAO-LCCS turns out to be the best candidate to cope with the complexity of habitat description and provides a framework for EO and in situ data integration for habitat mapping, reducing uncertainties and class overlaps and bridging the gap between LC/LU and habitats domains for landscape monitoring—a major issue for conservation. This study also highlights the need to modify the FAO-LCCS hierarchical class description process to permit the addition of attributes based on class-specific expert knowledge to select multi-temporal (seasonal) EO data and improve classification. An application of LC/LU to habitat mapping is provided for a coastal Natura 2000 site with high classification accuracy as a result

    Determinants of weight, psychological status, food contemplation and lifestyle changes in patients with obesity during the COVID-19 lockdown: a nationwide survey using multiple correspondence analysis

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    Introduction The corona virus disease 2019 (COVID-19) pandemic forced most of the Italian population into lockdown from 11 March to 18 May 2020. A nationwide survey of Italian Clinical Nutrition and Dietetic Services (Obesity Centers or OCs) was carried out to assess the impact of lockdown restrictions on the physical and mental wellbeing of patients with obesity (PWO) who had follow-up appointments postponed due to lockdown restrictions and to compare determinants of weight gain before and after the pandemic. Methods We designed a structured 77-item questionnaire covering employment status, diet, physical activity and psychological aspects, that was disseminated through follow-up calls and online between 2 May and 25 June 2020. Data were analyzed by multiple correspondence analysis (MCA) and multiple linear regression. Results A total of 1,232 PWO from 26 OCs completed the questionnaires (72% female, mean age 50.2 +/- 14.2 years; mean BMI 34.7 +/- 7.6 kg/m(2); 41% obesity class II to III). During the lockdown, 48.8% gained, 27.1% lost, while the remainder (24.1%) maintained their weight. The mean weight change was +2.3 +/- 4.8 kg (in weight gainers: +4.0 +/- 2.4 kg; +4.2% +/- 5.4%). Approximately 37% of participants experienced increased emotional difficulties, mostly fear and dissatisfaction. Sixty-one percent reduced their physical activity (PA) and 55% experienced a change in sleep quality/quantity. The lack of online contact (37.5%) with the OC during lockdown strongly correlated with weight gain (p < 0.001). Using MCA, two main clusters were identified: those with unchanged or even improved lifestyles during lockdown (Cluster 1) and those with worse lifestyles during the same time (Cluster 2). The latter includes unemployed people experiencing depression, boredom, dissatisfaction and increased food contemplation and weight gain. Within Cluster 2, homemakers reported gaining weight and experiencing anger due to home confinement. Conclusions Among Italian PWO, work status, emotional dysregulation, and lack of online communication with OCs were determinants of weight gain during the lockdown period

    Joint multi-field T1 quantification for fast field-cycling MRI

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    Acknowledgment This article is based upon work from COST Action CA15209, supported by COST (European Cooperation in Science and Technology). Oliver Maier is a Recipient of a DOC Fellowship (24966) of the Austrian Academy of Sciences at the Institute of Medical Engineering at TU Graz. The authors would like to acknowledge the NVIDIA Corporation Hardware grant support.Peer reviewedPublisher PD

    Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

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    This paper presents measurements of the W+μ+νW^+ \rightarrow \mu^+\nu and WμνW^- \rightarrow \mu^-\nu cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13

    Search for direct stau production in events with two hadronic tau-leptons in root s=13 TeV pp collisions with the ATLAS detector

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    A search for the direct production of the supersymmetric partners ofτ-leptons (staus) in final stateswith two hadronically decayingτ-leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of139fb−1, recorded with the ATLAS detector at the LargeHadron Collider at a center-of-mass energy of 13 TeV. No significant deviation from the expected StandardModel background is observed. Limits are derived in scenarios of direct production of stau pairs with eachstau decaying into the stable lightest neutralino and oneτ-lepton in simplified models where the two staumass eigenstates are degenerate. Stau masses from 120 GeV to 390 GeV are excluded at 95% confidencelevel for a massless lightest neutralino
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