203 research outputs found

    Data-driven social innovation: a methodology to support employees of retail shops

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    Showrooming is a social issue of small-medium shops at the worldwide level. This problem means customers are going to physical stores to try products and buy on-line from the competitor. It is a pressing issue for both shops owners and sales assistants. Shop owners are suffering from the reduction of revenue and number of customers, who are buying on-line (i.e. e-commerce Giants are more convenient in terms of pricing and delivery of products). And sales assistants are being pressured to work more and having their performance tracked every day. From this phenomenon, this research analyzes the way a public-private partnership (PPP) is developing data-driven social innovation. The main contribution of this paper is a methodology to support sales assistants of small-medium shops to increase performance and well-being. The results of this paper expand the field of social innovation by creating a new method capable of increasing employee performance and well-being

    Audio-based narratives for the trenches of World War I : intertwining stories, places and interaction for an evocative experience

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    We report in detail the co-design, setup and evaluation of a technological intervention for a complex outdoor heritage site: a World War I fortified camp and trenches located in the natural setting of the Italian Alps. Sound was used as the only means of content delivery as it was considered particularly effective in engaging visitors at an emotional level and had the potential to enhance the physical experience of being at an historical place. The implemented prototype is visitor-aware personalised multi-point auditory narrative system that automatically plays sounds and stories depending on a combination of features such as physical location, visitor proximity and visitor preferences. The curators created for the trail multiple narratives to capture the different voices of the War. The stories are all personal accounts (as opposed to objective and detached reporting of the facts); they were designed to trigger empathy and understanding while leaving the visitors free to interpret the content and the place on the bases of their own understanding and sensitivity. The result is an evocative embodied experience that does not describe the place in a traditional sense, but leaves its interpretation open. It takes visitors beyond the traditional view of heritage as a source of information toward a sensorial experience of feeling the past. A prototype was set up and tested with a group of volunteers showing that a design that carefully combines content design, sound design, tangible and embodied interaction can bring archaeological remains, with very little to see, back to file

    Multidisciplinary Management of Spondyloarthritis-Related Immune-Mediated Inflammatory Disease

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    Immune-mediated inflammatory diseases (IMIDs) are chronic autoimmune conditions that share common pathophysiologic mechanisms. The optimal management of patients with IMIDs remains challenging because the coexistence of different conditions requires the intervention of several specialists. The aim of this study was to develop a series of statements defining overarching principles that guide the implementation of a multidisciplinary approach for the management of spondyloarthritis (SpA)-related IMIDs including SpA, psoriasis, psoriatic arthritis, Crohn's disease, ulcerative colitis and uveitis

    Patient-reported impact of spondyloarthritis on work disability and working life: The ATLANTIS survey

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    44noopenopenRamonda, Roberta; Marchesoni, Antonio; Carletto, Antonio; Bianchi, Gerolamo; Cutolo, Maurizio; Ferraccioli, Gianfranco; Fusaro, Enrico; De Vita, Salvatore; Galeazzi, Mauro; Gerli, Roberto; Matucci-Cerinic, Marco; Minisola, Giovanni; Montecucco, Carlomaurizio; Pellerito, Raffaele; Salaffi, Fausto; Paolazzi, Giuseppe; Sarzi-Puttini, Piercarlo; Scarpa, Raffaele; Bagnato, Gianfilippo; Triolo, Giovanni; Valesini, Guido; Punzi, Leonardo; Olivieri, Ignazio; Ortolan, Augusta; Lorenzin, Mariagrazia; Frallonardo, Paola; Giollo, Alessandro; Locaputo, Antonella; Paolino, Sabrina; Simone, Davide; Quartuccio, Luca; Bartoloni, Elena; Luca, Rossella De; Bartoli, Francesca; Sensi, Felice; Caporali, Roberto; Carlo, Marco Di; Roberto, Bortolotti; Atzeni, Fabiola; Costa, Luisa; Ciccia, Francesco; Perrotta, Fabio; Gilio, Michele; ATLANTIS study groupRamonda, Roberta; Marchesoni, Antonio; Carletto, Antonio; Bianchi, Gerolamo; Cutolo, Maurizio; Ferraccioli, Gianfranco; Fusaro, Enrico; De Vita, Salvatore; Galeazzi, Mauro; Gerli, Roberto; Matucci-Cerinic, Marco; Minisola, Giovanni; Montecucco, Carlomaurizio; Pellerito, Raffaele; Salaffi, Fausto; Paolazzi, Giuseppe; Sarzi-Puttini, Piercarlo; Scarpa, Raffaele; Bagnato, Gianfilippo; Triolo, Giovanni; Valesini, Guido; Punzi, Leonardo; Olivieri, Ignazio; Ortolan, Augusta; Lorenzin, Mariagrazia; Frallonardo, Paola; Giollo, Alessandro; Locaputo, Antonella; Paolino, Sabrina; Simone, Davide; Quartuccio, Luca; Bartoloni, Elena; Luca, Rossella De; Bartoli, Francesca; Sensi, Felice; Caporali, Roberto; Carlo, Marco Di; Roberto, Bortolotti; Atzeni, Fabiola; Costa, Luisa; Ciccia, Francesco; Perrotta, Fabio; Gilio, Michele; ATLANTIS study, Grou

    Advanced Virgo Plus: Future Perspectives

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    While completing the commissioning phase to prepare the Virgo interferometer for the next joint Observation Run (O4), the Virgo collaboration is also finalizing the design of the next upgrades to the detector to be employed in the following Observation Run (O5). The major upgrade will concern decreasing the thermal noise limit, which will imply using very large test masses and increased laser beam size. But this will not be the only upgrade to be implemented in the break between the O4 and O5 observation runs to increase the Virgo detector strain sensitivity. The paper will cover the challenges linked to this upgrade and implications on the detector's reach and observational potential, reflecting the talk given at 12th Cosmic Ray International Seminar - CRIS 2022 held in September 2022 in Napoli

    Virgo Detector Characterization and Data Quality during the O3 run

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    The Advanced Virgo detector has contributed with its data to the rapid growth of the number of detected gravitational-wave signals in the past few years, alongside the two LIGO instruments. First, during the last month of the Observation Run 2 (O2) in August 2017 (with, most notably, the compact binary mergers GW170814 and GW170817) and then during the full Observation Run 3 (O3): an 11 months data taking period, between April 2019 and March 2020, that led to the addition of about 80 events to the catalog of transient gravitational-wave sources maintained by LIGO, Virgo and KAGRA. These discoveries and the manifold exploitation of the detected waveforms require an accurate characterization of the quality of the data, such as continuous study and monitoring of the detector noise. These activities, collectively named {\em detector characterization} or {\em DetChar}, span the whole workflow of the Virgo data, from the instrument front-end to the final analysis. They are described in details in the following article, with a focus on the associated tools, the results achieved by the Virgo DetChar group during the O3 run and the main prospects for future data-taking periods with an improved detector.Comment: 86 pages, 33 figures. This paper has been divided into two articles which supercede it and have been posted to arXiv on October 2022. Please use these new preprints as references: arXiv:2210.15634 (tools and methods) and arXiv:2210.15633 (results from the O3 run

    Virgo Detector Characterization and Data Quality: results from the O3 run

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    The Advanced Virgo detector has contributed with its data to the rapid growth of the number of detected gravitational-wave (GW) signals in the past few years, alongside the two Advanced LIGO instruments. First during the last month of the Observation Run 2 (O2) in August 2017 (with, most notably, the compact binary mergers GW170814 and GW170817), and then during the full Observation Run 3 (O3): an 11-months data taking period, between April 2019 and March 2020, that led to the addition of about 80 events to the catalog of transient GW sources maintained by LIGO, Virgo and now KAGRA. These discoveries and the manifold exploitation of the detected waveforms require an accurate characterization of the quality of the data, such as continuous study and monitoring of the detector noise sources. These activities, collectively named {\em detector characterization and data quality} or {\em DetChar}, span the whole workflow of the Virgo data, from the instrument front-end hardware to the final analyses. They are described in details in the following article, with a focus on the results achieved by the Virgo DetChar group during the O3 run. Concurrently, a companion article describes the tools that have been used by the Virgo DetChar group to perform this work.Comment: 57 pages, 18 figures. To be submitted to Class. and Quantum Grav. This is the "Results" part of preprint arXiv:2205.01555 [gr-qc] which has been split into two companion articles: one about the tools and methods, the other about the analyses of the O3 Virgo dat

    The Advanced Virgo+ status

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    The gravitational wave detector Advanced Virgo+ is currently in the commissioning phase in view of the fourth Observing Run (O4). The major upgrades with respect to the Advanced Virgo configuration are the implementation of an additional recycling cavity, the Signal Recycling cavity (SRC), at the output of the interferometer to broaden the sensitivity band and the Frequency Dependent Squeezing (FDS) to reduce quantum noise at all frequencies. The main difference of the Advanced Virgo + detector with respect to the LIGO detectors is the presence of marginally stable recycling cavities, with respect to the stable recycling cavities present in the LIGO detectors, which increases the difficulties in controlling the interferometer in presence of defects (both thermal and cold defects). This work will focus on the interferometer commissioning, highlighting the control challenges to maintain the detector in the working point which maximizes the sensitivity and the duty cycle for scientific data taking

    Virgo Detector Characterization and Data Quality: tools

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    Detector characterization and data quality studies -- collectively referred to as {\em DetChar} activities in this article -- are paramount to the scientific exploitation of the joint dataset collected by the LIGO-Virgo-KAGRA global network of ground-based gravitational-wave (GW) detectors. They take place during each phase of the operation of the instruments (upgrade, tuning and optimization, data taking), are required at all steps of the dataflow (from data acquisition to the final list of GW events) and operate at various latencies (from near real-time to vet the public alerts to offline analyses). This work requires a wide set of tools which have been developed over the years to fulfill the requirements of the various DetChar studies: data access and bookkeeping; global monitoring of the instruments and of the different steps of the data processing; studies of the global properties of the noise at the detector outputs; identification and follow-up of noise peculiar features (whether they be transient or continuously present in the data); quick processing of the public alerts. The present article reviews all the tools used by the Virgo DetChar group during the third LIGO-Virgo Observation Run (O3, from April 2019 to March 2020), mainly to analyse the Virgo data acquired at EGO. Concurrently, a companion article focuses on the results achieved by the DetChar group during the O3 run using these tools.Comment: 44 pages, 16 figures. To be submitted to Class. and Quantum Grav. This is the "Tools" part of preprint arXiv:2205.01555 [gr-qc] which has been split into two companion articles: one about the tools and methods, the other about the analyses of the O3 Virgo dat

    Constraints on the cosmic expansion history from GWTC-3

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    We use 47 gravitational-wave sources from the Third LIGO-Virgo-KAGRA Gravitational-Wave Transient Catalog (GWTC-3) to estimate the Hubble parameter H(z)H(z), including its current value, the Hubble constant H0H_0. Each gravitational-wave (GW) signal provides the luminosity distance to the source and we estimate the corresponding redshift using two methods: the redshifted masses and a galaxy catalog. Using the binary black hole (BBH) redshifted masses, we simultaneously infer the source mass distribution and H(z)H(z). The source mass distribution displays a peak around 34M34\, {\rm M_\odot}, followed by a drop-off. Assuming this mass scale does not evolve with redshift results in a H(z)H(z) measurement, yielding H0=687+12kms1Mpc1H_0=68^{+12}_{-7} {\rm km\,s^{-1}\,Mpc^{-1}} (68%68\% credible interval) when combined with the H0H_0 measurement from GW170817 and its electromagnetic counterpart. This represents an improvement of 17% with respect to the H0H_0 estimate from GWTC-1. The second method associates each GW event with its probable host galaxy in the catalog GLADE+, statistically marginalizing over the redshifts of each event's potential hosts. Assuming a fixed BBH population, we estimate a value of H0=686+8kms1Mpc1H_0=68^{+8}_{-6} {\rm km\,s^{-1}\,Mpc^{-1}} with the galaxy catalog method, an improvement of 42% with respect to our GWTC-1 result and 20% with respect to recent H0H_0 studies using GWTC-2 events. However, we show that this result is strongly impacted by assumptions about the BBH source mass distribution; the only event which is not strongly impacted by such assumptions (and is thus informative about H0H_0) is the well-localized event GW190814
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