1,033 research outputs found

    An Innovation and Risk Dashboard

    Get PDF
    In order to manage new product and service innovations within organisations effectively, cognizance needs to be taken of a wide number of diverse risks that are multidisciplinary in nature. However, to display such a large number of risks in a fast-changing environment on short notice with dispersed information requires novel techniques. Using a design science methodology, a unique artefact was delivered with a design grounded in scientific literature, including prescriptive and concrete knowledge sources as well practical knowledge. This risk and innovation dashboard allows new product and service development teams to make quicker and more informed decisions during stage/gate processes. Since no dashboard design approach for managing risks in new product and service development could be found in the academic literature, this paper hopes to make a novel contribution to the state of the art in the fields of decision support systems as well as innovation and risk management

    A century of warfare shoots holes in anti-Caulerpa campaign

    Get PDF
    Effort to have all varieties of the marine alga Caulerpa taxifolia listed as noxious weeds hinges on the argument that the alga's proliferation in the Mediterranean Sea is a cause and not a consequence of environmental degradation. Until now, the occurrence of two populations in a pristine part of the northern Mediterranean near the island of Porquerolles has upheld this claim. Here we show that the alga's development at Porquerolles is indeed a consequence of environmental degradation caused by military weapons' impacts on seagrass beds during the last century. The available data show that substratum enrichment plays a key role in fostering development of Caulerpa, irrespective of whether this results directly from pollution or from the impacts of pollution and other anthropogenic factors on benthic vegetation cover

    Des erreurs aux stéréotypes : Des modèles cognitifs de différents niveaux dans le projet Pépite

    Get PDF
    De nombreux modèles de l'apprenant ont été proposés en EIAH : des catalogues d'erreurs, des modèles cognitifs, des stéréotypes, etc. Notre expérience au sein du projet Pépite qui s'attache au diagnostic de la compétence algébrique des élèves de fin de collège début lycée, nous conduit à proposer plusieurs niveaux de modélisation selon les usages prévus de ce modèle et les acteurs concernés. Nous présentons les trois niveaux que nous définissons : codage des réponses selon des critères multidimensionnels, caractéristiques personnelles exprimées par des taux de réussite et la liste des erreurs commises et, enfin, le stéréotype associé à des fragilités et à des leviers pour l'apprentissage. Nous exposons leur mode de calcul et leur utilisation, puis, après avoir brièvement rappelé les résultats essentiels qui ressortent des travaux antérieurs dans ce domaine, nous évoquons une expérimentation en cours et les différentes perspectives offertes par ce travail

    The Vestibulocerebellum and the Shattered Self: a Resting-State Functional Connectivity Study in Posttraumatic Stress Disorder and Its Dissociative Subtype

    Get PDF
    The flocculus is a region of the vestibulocerebellum dedicated to the coordination of neck, head, and eye movements for optimal posture, balance, and orienting responses. Despite growing evidence of vestibular and oculomotor impairments in the aftermath of traumatic stress, little is known about the effects of chronic psychological trauma on vestibulocerebellar functioning. Here, we investigated alterations in functional connectivity of the flocculus at rest among individuals with post-traumatic stress disorder (PTSD) and its dissociative subtype (PTSD + DS) as compared to healthy controls. Forty-four healthy controls, 57 PTSD, and 32 PTSD + DS underwent 6-min resting-state MRI scans. Seed-based functional connectivity analyses using the right and left flocculi as seeds were performed. These analyses revealed that, as compared to controls, PTSD and PTSD + DS showed decreased resting-state functional connectivity of the left flocculus with cortical regions involved in bodily self-consciousness, including the temporo-parietal junction, the supramarginal and angular gyri, and the superior parietal lobule. Moreover, as compared to controls, the PTSD + DS group showed decreased functional connectivity of the left flocculus with the medial prefrontal cortex, the precuneus, and the mid/posterior cingulum, key regions of the default mode network. Critically, when comparing PTSD + DS to PTSD, we observed increased functional connectivity of the right flocculus with the right anterior hippocampus, a region affected frequently by early life trauma. Taken together, our findings point toward the crucial role of the flocculus in the neurocircuitry underlying a coherent and embodied self, which can be compromised in PTSD and PTSD + DS
    • …
    corecore