1,129 research outputs found

    Towards spatial integration of qualitative data for urban transformation – challenges with automated geovisualization of perception of urban places

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    Urban planning needs to face and integrate ecological, social, and economic aspects of city living. So far, attempts to integrate different urban simulation models into one technical platform have focused on quantitative data. The aim of this paper is to present the preparation for an automated method to spatially integrate and visualize interview-based qualitative data on the perception of urban places into a virtual platform. The Gothenburg suburb of Hammarkullen is used as a case study. Two CAQDAS software, NVivo and Atlas.ti, were tested. In bothsoftware, locations and urban qualities were coded and clustered. Visualization strategies such as information tree structures, geo-coded quotations, spatial word clouds, linked to 2D maps and 3D environments were developed. Results identify the challenges to overcome and show limitations of the software in terms of creating graphs and relationships as well as automated geocoding of data to maps. The project offers a step towards the integration of qualitative (social)data into digital environments that can be scaled up. By that, it contributes with a new dimension of analysis of urban environments which is necessary for sustainable transformation of cities

    A Proposed Workflow for Conceptual Visualization Studies in Urban 3D-Models

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    Different types of invisible parameters, such as air quality and noise, are all affected by new constructions of infrastructure and buildings and should be considered as important aspects in the design of new urban environments. At the same time these parameters are difficult to communicate in a comprehensible way and their consequences can be difficult to grasp for non-experts. Effective visualization offers possibilities to include and create consensus among stakeholders in urban planning processes and thus contributes to a holistic view and more sustainable solutions. This paper presents and discusses a proposed method for conceptual explorations for visualizing environmental data, using a so-called sandbox model with fictitious data.\ua0 One question is in focus: How can a sandbox model be used for the development of visualization concepts in urban 3D-models? In this paper we demonstrate our methodology using noise pollution data applied in one of our research projects carried out together with the Swedish Transport Administration (Trafikverket). This project explores new solutions for visualization of environmental data in Trafikverket\u27s geographically large-scale 3D-models. In order to conduct design elaborations in an adapted environment a sandbox model was developed as part of the workflow. Here various concepts for visualization solutions were developed and tested in a series of user tests. Based on this developed methodology through application, we propose guidelines for conceptional elaborations in a sandbox model for visualization of data in urban 3D-models. This research approach contributes to developing new methodology for information visualization of environmental data in urban 3D-models

    An urban planning tool demonstrator with auralisation and visualisation of the sound environment

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    The paper presents findings from a recent project about the development of a demonstrator of an urban planning tool that includes auralised sounds as well as visualisations of sound propagation and facade noise levels linked to health impact. In urban development projects, the sound environment is one of the key elements, but often enters late in the planning process. As a result, even if the noise regulations are fulfilled, the potentially good sound environment may suffer unnecessary quality reductions. In addition, the standard ways of presenting and analysing the situations, using noise levels and noise maps, has potential for improvement, especially considering the transdisciplinary approaches to planning that are increasing in use. The tool aims to simplify the usage also at early stage planning, including scenario analysis, as well as to facilitate the urban planners\u27 understanding of the sound environment and its effects. The paper presents results from the development of the demonstrator, reflecting on auralisation as well as on multiple aspects of visualisation including grid noise maps, health-related facade noise levels and choice of colour scales

    Visualisation of traffic noise exposure and health impact in a 3D urban environment

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    It is becoming increasingly common to work with urban planning using 3D visualisation tools. In the project DemoVirPEN a research team with participation from different research fields cooperated to create a demonstration concept for visualising traffic noise and the associated health impact in a 3D graphics environment. The project included participation from the following fields; 3D modelling and mapping, traffic noise calculation, auralisation, urban planning and architecture and health impact of noise exposure. The final product of the project is summarised in a film clip that illustrates the main results by visualising and auralising traffic in different configurations from different perspectives. A few key points are visualising short time frames (single vehicle passage) versus yearly average (noise map), and impact of changes such as removing or modifying traffic flows and buildings

    Visualisering och auralisering av buller i stadsmilj\uf6

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    Inom dagens stadsplanering anv\ue4nds oftast 2D-kartor f\uf6r att visa ber\ue4knade v\ue4rden f\uf6r framtida bullerniv\ue5er. Dessa kartor kan ibland vara sv\ue5ra att tolka. F\uf6r att \uf6ka f\uf6rst\ue5elsen och underl\ue4tta kommunikationen mellan olika akt\uf6rer inom planeringsprocessen, har vi inom forskningsprojektet DemoVirPEN p\ue5 Chalmers och G\uf6teborgs universitet utvecklat en prototyp av ett verktyg f\uf6r visualisering och auralisering (ljudsimulering) av buller fr\ue5n v\ue4gtrafik i en stadsmodell

    Case report: Cytopenias in VEXAS syndrome - a WHO 2022 based approach in a single-center cohort

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    VEXAS syndrome is an acquired autoinflammatory disease characterized in most cases by cytopenias and macrocytic anemia. Dyshematopoiesis is a frequent finding in chronic inflammatory conditions and therefore, cytopenias are not easily classified in VEXAS patients. Here we report a series of 7 patients affected by VEXAS associated cytopenias, treated at our center. The use of NGS, together with morphological assays, integrated with the WHO 2022 criteria, allowed to identify three subsets of VEXAS associated cytopenias: ICUS (idiopathic cytopenia of uncertain significance), CCUS (clonal cytopenia of uncertain significance) at high risk of clonal evolution, and MDS. This approach could help to better understand the nature of VEXAS associated cytopenias and to guide the use of specific targeted treatments in order to achieve long lasting responses

    Search for heavy neutral lepton production in K+ decays

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    A search for heavy neutral lepton production in K + decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the 10−7 to 10−6 level are established on the elements of the extended neutrino mixing matrix |Ue4| 2 and |Uμ4| 2 for heavy neutral lepton mass in the ranges 170–448 MeV/c2 and 250–373 MeV/c2, respectively. This improves on the previous limits from HNL production searches over the whole mass range considered for |Ue4|2 and above 300 MeV/c2 for |Uμ4|2

    Strategies for preventing group B streptococcal infections in newborns: A nation-wide survey of Italian policies

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    An embedding technique to determine ττ backgrounds in proton-proton collision data

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    An embedding technique is presented to estimate standard model tau tau backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed mu mu events and replaced with simulated tau leptons with the same kinematic properties. In this way, a set of hybrid events is obtained that does not rely on simulation except for the decay of the tau leptons. The challenges in describing the underlying event or the production of associated jets in the simulation are avoided. The technique described in this paper was developed for CMS. Its validation and the inherent uncertainties are also discussed. The demonstration of the performance of the technique is based on a sample of proton-proton collisions collected by CMS in 2017 at root s = 13 TeV corresponding to an integrated luminosity of 41.5 fb(-1).Peer reviewe

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

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    Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.
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