1,828 research outputs found

    Data modelling for emergency response

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    Emergency response is one of the most demanding phases in disaster management. The fire brigade, paramedics, police and municipality are the organisations involved in the first response to the incident. They coordinate their work based on welldefined policies and procedures, but they also need the most complete and up-todate information about the incident, which would allow a reliable decision-making.\ud There is a variety of systems answering the needs of different emergency responders, but they have many drawbacks: the systems are developed for a specific sector; it is difficult to exchange information between systems; the systems offer too much or little information, etc. Several systems have been developed to share information during emergencies but usually they maintain the nformation that is coming from field operations in an unstructured way.\ud This report presents a data model for organisation of dynamic data (operational and situational data) for emergency response. The model is developed within the RGI-239 project ‘Geographical Data Infrastructure for Disaster Management’ (GDI4DM)

    A data model for operational and situational information in emergency response: the Dutch case

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    During emergency response a lot of dynamic information is created and needs to be studied and analysed in the decision-making process. However, this analysis of data is difficult and often not possible. A major reason for this is that a lot of information coming from the field operations is not archived in a structured way. This paper presents a data model for the management of dynamic data, which captures the situational information (incident and its effect) and the operational information (processes activated and people/departments involved). The model is derived from the emergency response procedure and structural organisation in the Netherlands

    Models of Dynamic Data for Emergency Response: A Comparative Study

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    The first hours after a disaster happens are very chaotic and difficult but perhaps the most important for successfully fighting the consequences, saving human lives and reducing damages in private and public properties. Despite some advances, complete inventory of the information needed during the emergency response remains challenging. In the last years several nationally and internationally funded projects have concentrated on inventory of emergency response processes, structures for storing dynamic information and standards and services for accessing needed data sets. A good inventory would clarify many aspects of the information exchange such as data sets, models, representations; a good structuring would facilitate the fast access to a desired piece of information, as well as the automation of analysis of the information. Consequently the information can be used better in the decision-making process.\ud This paper presents our work on models for dynamic data for different disasters and incidents in Europe. The Dutch data models are derived from a thorough study on emergency response procedure in the Netherlands. Two more models developed within the project HUMBOLDT reflect several cross border disaster management scenarios in Europe. These models are compared with the Geospatial Data Model of the Department of Homeland Security in USA. The paper draws conclusions about the type of geographical information needed to perform emergency response operations and the possibility to have a generic model to be used world-wide

    Situations difficiles quotidiennes des proches aidants de personnes atteintes de démence vivant à domicile: une étude qualitative

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    Les proches aidants jouent un rôle important dans la prise en charge à domicile des personnes atteintes de démence dont 50% vivent à domicile avec le soutien d’un proche aidant. Avec le temps, ce rôle peut devenir pénible pour le proche aidant qui risque de s’épuiser

    Constraints, Histones, and the 30 Nanometer Spiral

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    We investigate the mechanical stability of a segment of DNA wrapped around a histone in the nucleosome configuration. The assumption underlying this investigation is that the proper model for this packaging arrangement is that of an elastic rod that is free to twist and that writhes subject to mechanical constraints. We find that the number of constraints required to stabilize the nuclesome configuration is determined by the length of the segment, the number of times the DNA wraps around the histone spool, and the specific constraints utilized. While it can be shown that four constraints suffice, in principle, to insure stability of the nucleosome, a proper choice must be made to guarantee the effectiveness of this minimal number. The optimal choice of constraints appears to bear a relation to the existence of a spiral ridge on the surface of the histone octamer. The particular configuration that we investigate is related to the 30 nanometer spiral, a higher-order organization of DNA in chromatin.Comment: ReVTeX, 15 pages, 18 figure

    Yoda- The Youth Orchestra with Different Abilities

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    https://remix.berklee.edu/able-assembly-conference/1048/thumbnail.jp

    Chromatin: a tunable spring at work inside chromosomes

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    This paper focuses on mechanical aspects of chromatin biological functioning. Within a basic geometric modeling of the chromatin assembly, we give for the first time the complete set of elastic constants (twist and bend persistence lengths, stretch modulus and twist-stretch coupling constant) of the so-called 30-nm chromatin fiber, in terms of DNA elastic properties and geometric properties of the fiber assembly. The computation naturally embeds the fiber within a current analytical model known as the ``extensible worm-like rope'', allowing a straightforward prediction of the force-extension curves. We show that these elastic constants are strongly sensitive to the linker length, up to 1 bp, or equivalently to its twist, and might locally reach very low values, yielding a highly flexible and extensible domain in the fiber. In particular, the twist-stretch coupling constant, reflecting the chirality of the chromatin fiber, exhibits steep variations and sign changes when the linker length is varied. We argue that this tunable elasticity might be a key feature for chromatin function, for instance in the initiation and regulation of transcription.Comment: 38 pages 15 figure

    NAVIGATION IN INDOOR VOXEL MODELS

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    The paper proposes to use voxel models of building interiors to perform indoor navigation. The algorithms can be purely geometrical, not relying on semantic information about different building elements, such as floors, walls, stairways etc. Therefore, it is possible to use voxel models from different data sources, in addition to vector-to-raster conversions. The paper demonstrates this on the basis of tree different input types: hand measurements, point clouds and images of floorplans. On the basis of these models, the paper shows how to determine the navigable space in a voxel model for a pedestrian actor, and how to compute paths from arbitrary sources to specified destinationsScopu

    A Framework Utilizing Gaming Engine for 3d Virtual Spatial Experience and Image‐Based Questionnaire: Investigating Aesthetics in Hospital Environments

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    The hospital environment prompts a sense of anxiety and stress, and the spatial experience of moving indoors is often confusing and disorienting. The hospital's design evokes different emotions and moods, influencing the users' spatial experience. Considering aesthetic elements in the hospital environment can positively affect hospital users. Thoughtful integration of aesthetics in a hospital environment improves the indoor spatial experience. This study introduces a framework for using aesthetic elements. The framework, which integrates theories and incorporates evidence-based design principles, is a robust approach to studying hospital environments. This paper presents a method that uses a gaming engine to create 3D virtual spatial experiences. These experiences are integrated into an online survey with image-based questionnaires. The framework is structured around Colour, Signs, Views of nature, Natural light, Artificial lighting, Material, and Ample space. These elements are not exhaustive but serve as the foundational aspects of the structure. Each of these elements plays a role in shaping the hospital environment, particularly influencing patients' spatial experience. The 3D spatial experience places participants in virtual hospital environments resembling an inpatient and outpatient journey. Different combinations of the seven aesthetic elements are used to measure patients' emotional responses. This paper discusses the framework and an online method and concludes with potential implications. The framework demonstrates how to design patients' spatial experiences in hospital environments, serving as an effective means to improve patient well-being and satisfaction
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