100 research outputs found

    Intelligence physique dans l'habitat

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    National audienceThe state-of-the-art solutions in the smart home domain rely on a logical approach, based on a heavy instrumentation of the environment and on complex techniques that analyze very large amounts of data. This paper proposes the adoption of a physical approach, in which the infor-mation and the computations are carried and executed directly by augmented physical entities, allowing small, meaningful exchanges of data that need less complicated processing. This paper describes this approach and illustrates a first prototype that demonstrates its feasibility.Les solutions d'habitat intelligent existantes adoptent une approche logique, qui s'appuie sur une instrumentation lourde de l'environnement et sur des techniques complexes qui analysent de grandes quantités de données brutes. Nous proposons d'adopter une approche physique, où les informations sont portées directement par les entités du monde physique et les traitements sont déclenchés par des échanges significatifs d'information. Cet article rappelle les concepts d'habitat intelligent et d'ubiquité numérique, analyse les points faibles des approches logiques et introduit l'approche physique, illustrant un premier prototype qui démontre sa faisabilité

    The Frequency Following Response: Evaluations in Different Age Groups

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    In this chapter, recent data on the clinical application of the frequency following response (FFR) in different age groups will be presented. The chapter begins with the importance of using speech sounds in electrophysiological assessments. Then the FFR methodology is presented, giving normative data and the expected responses in different age groups: infants and young children, children and adolescents, and adults and the elderly. Finally, the unique responses of each age group are presented in order to show how this new technology can be an extremely useful tool for diagnosing hearing dysfunction

    Treinamento auditivo cognitivo em sujeitos após COVID-19 : uma análise dos efeitos da intervenção em adultos

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    To analyze the effectiveness of a therapeutic intervention plan through an existing cognitive auditory training program, adapted for adults, after one year of COVID-19 infection. Methods: 13 subjects, between 18 and 59 years old, four males and nine females participated in the study. All underwent anamnesis, visual inspection of the external acoustic meatus, pure tone audiometry, speech audiometry and acoustic immitance measurements as selection procedures. For the research, the following procedures were carried out in the evaluation and reassessment: evaluation of central auditory processing, brief neuropsychological evaluation - NEUPSILIN, Speech, Spatial and Qualities of Hearing Scale and the Cognitive Potential - P300 with speech stimulus. Cognitive auditory training was carried out in six consecutive sessions, in an open field, lasting approximately 50 minutes. In all analyses, a significance level of 5% (p≤0.05) was considered. Results: When comparing the variables between the periods, pre and post intervention, there was a statistically significant difference in the Dichotic Digit Test (p = 0.009), in the Frequency Pattern Test (p = 0.020) and in Speech, Spatial and Qualities of Hearing Scale (p = 0.001). And a tendency to significance (p < 0.10) in the Gap in Noise test and Total Attention. Conclusion: Cognitive auditory training proved to be an effective therapeutic strategy for the treatment of adults with speech comprehension and cognition complaints after COVID-19 infection.Objetivo: analisar a eficácia de um plano de intervenção terapêutica por meio de um programa de treinamento auditivo cognitivo já existente, adaptado para adultos, após um ano de infecção por COVID-19. Métodos: participaram do estudo 13 sujeitos, entre 18 e 59 anos de idade, quatro do gênero masculino e nove do gênero feminino. Todos foram submetidos a um questionário, inspeção visual do meato acústico externo, audiometria tonal liminar, logoaudiometria e medidas de imitância acústica, como procedimentos de seleção. Foram realizados, na avaliação e na reavaliação, os seguintes procedimentos: avaliação do processamento auditivo central, avaliação neuropsicológica breve-NEUPSILIN, Speech, Spatial and Qualities of Hearing Scale e o Potencial Cognitivo - P300, com estímulo de fala. O treinamento auditivo cognitivo foi realizado em seis sessões consecutivas, em campo aberto, com duração de, aproximadamente, 50 minutos. Em todas as análises foi considerado o nível de significância de 5% (p≤0,05). Resultados: na comparação das variáveis entre os períodos, pré e pós-intervenção, houve diferença estatisticamente significativa no Teste Dicótico de Dígitos (p = 0,009), no Teste Padrão de Frequência (p = 0,020) e no Speech, Spatial and Qualities of Hearing Scale (p = 0,001). Houve tendência à significância (p < 0,10) no teste Gap in Noise e na Atenção Total. Conclusão: o treinamento auditivo cognitivo demonstrou ser uma estratégia terapêutica eficaz para o tratamento de adultos com queixas de compreensão de fala e de cognição após infecção por COVID-19

    Phenotypic, functional, and metabolic heterogeneity of immune cells infiltrating non–small cell lung cancer.

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    Lung cancer is the leading cancer in the world, accounting for 1.2 million of new cases annually, being responsible for 17.8% of all cancer deaths. In particular, non–small cell lung cancer (NSCLC) is involved in approximately 85% of all lung cancers with a high lethality probably due to the asymptomatic evolution, leading patients to be diagnosed when the tumor has already spread to other organs. Despite the introduction of new therapies, which have improved the long-term survival of these patients, this disease is still not well cured and under controlled. Over the past two decades, single-cell technologies allowed to deeply profile both the phenotypic and metabolic aspects of the immune cells infiltrating the TME, thus fostering the identification of predictive biomarkers of prognosis and supporting the development of new therapeutic strategies. In this review, we discuss phenotypic and functional characteristics of the main subsets of tumorinfiltrating lymphocytes (TILs) and tumor-infiltrating myeloid cells (TIMs) that contribute to promote or suppress NSCLC development and progression. We also address two emerging aspects of TIL and TIM biology, i.e., their metabolism, which affects their effector functions, proliferation, and differentiation, and their capacity to interact with cancer stem cells

    Comfort-Oriented Metamorphic House (COMETAE)

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    Publications Internes de l'IRISA ISSN : 2102-6327This proposal aims at challenging the existing design paradigm of residential building architecture with insights from pervasive computing, robotics, human-computer interaction and cognitive ergonomics. ICT and architecture will be holistically integrated in order to realize a radical advancement leading to metamorphic houses. Supported by ICT, domestic environments will self-adapt to the ongoing activities of inhabitants, to increase the comfort of living and optimize the use of space and energy. The same physical space will be transformed for diff erent uses, giving inhabitants the illusion of living in a bigger, more adapted and more comfortable place. The traditional tradeoff between comfort and energy conservation will also be revisited, thanks to an optimal exploitation of natural light, heat and ventilation. The realization of the targeted breakthrough will be achieved through cross-fertilization between involved disciplines and by the support of a panel of final users, architects and building engineers in the design, development and evaluation phases. COMETAE will introduce a novel approach to smart spaces research, where the space is itself an actuator of the system. Indoor environment, space and energy use will be optimized with respect to environmental factors, occupants' activities and life cycle, by orchestrating adaptive robotic building components, while ensuring occupants' safety. New coupling between inhabitants and their environment will be enabled by combining human-computer interaction and space recon guration, considering beauty of interaction and multi-user scenarios. This proposal opens the way towards a radically new use of ICT, needed to address future limitations of space and energy in the domestic environment, imposed by the ongoing and future evolutions of technology, environmental questions and socio-demographic factors

    Development and Multicenter Validation of a Novel Immune-Inflammation-Based Nomogram to Predict Survival in Western Resectable Gastric and Gastroesophageal Junction Adenocarcinoma (GEA): The NOMOGAST

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    Background. More than 50% of operable GEA relapse after curative-intent resection. We aimed at externally validating a nomogram to enable a more accurate estimate of individualized risk in resected GEA. Methods. Medical records of a training cohort (TC) and a validation cohort (VC) of patients undergoing radical surgery for c/uT2-T4 and/or node-positive GEA were retrieved, and potentially interesting variables were collected. Cox proportional hazards in univariate and multivariate regressions were used to assess the effects of the prognostic factors on OS. A graphical nomogram was constructed using R software’s package Regression Modeling Strategies (ver. 5.0-1). The performance of the prognostic model was evaluated and validated. Results. The TC and VC consisted of 185 and 151 patients. ECOG:PS > 0 (p < 0.001), angioinvasion (p < 0.001), log (Neutrophil/Lymphocyte ratio) (p < 0.001), and nodal status (p = 0.016) were independent prognostic values in the TC. They were used for the construction of a nomogram estimating 3- and 5-year OS. The discriminatory ability of the model was evaluated with the c-Harrell index. A 3-tier scoring system was developed through a linear predictor grouped by 25 and 75 percentiles, strengthening the model’s good discrimination (p < 0.001). A calibration plot demonstrated a concordance between the predicted and actual survival in the TC and VC. A decision curve analysis was plotted that depicted the nomogram’s clinical utility. Conclusions. We externally validated a prognostic nomogram to predict OS in a joint independent cohort of resectable GEA; the NOMOGAST could represent a valuable tool in assisting decision-making. This tool incorporates readily available and inexpensive patient and disease characteristics as well as immune-inflammatory determinants. It is accurate, generalizable, and clinically effectivex

    Application of X-Band Wave Radar for Coastal Dynamic Analysis: Case Test of Bagnara Calabra (South Tyrrhenian Sea, Italy)

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    Sea state knowledge has a key role in evaluation of coastal erosion, the assessment of vulnerability and potential in coastal zone utilization, and development of numerical models to predict its evolution. X-band radar measurements were conducted to observe the spatial and temporal variation of the sea-state parameters along a 3 km long sandy-gravelly pocket beaches forming a littoral cell on Bagnara Calabra. We produced a sequence of 1000 images of the sea state extending offshore up to 1 mile. The survey has allowed monitoring the coastline, the directional wave spectra, the sea surface current fields, and the significant wave heights and detecting strong rip currents which cause scours around the open inlets and affect the stability of the submerged reef-type breakwaters. The possibility to validate the data acquired with other datasets (e.g., LaMMA Consortium) demonstrates the potential of the X-band radar technology as a monitoring tool to advance the understanding of the linkages between sea conditions, nearshore sediment dynamics, and coastal change. This work proves the possibility to obtain relevant information (e.g., wave number, period, and direction) for evaluation of local erosion phenomena and of morphological changes in the nearshore and surf zone

    Pathogenic NR2F1 variants cause a developmental ocular phenotype recapitulated in a mutant mouse model.

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    Pathogenic NR2F1 variants cause a rare autosomal dominant neurodevelopmental disorder referred to as the Bosch-Boonstra-Schaaf Optic Atrophy Syndrome. Although visual loss is a prominent feature seen in affected individuals, the molecular and cellular mechanisms contributing to visual impairment are still poorly characterized. We conducted a deep phenotyping study on a cohort of 22 individuals carrying pathogenic NR2F1 variants to document the neurodevelopmental and ophthalmological manifestations, in particular the structural and functional changes within the retina and the optic nerve, which have not been detailed previously. The visual impairment became apparent in early childhood with small and/or tilted hypoplastic optic nerves observed in 10 cases. High-resolution optical coherence tomography imaging confirmed significant loss of retinal ganglion cells with thinning of the ganglion cell layer, consistent with electrophysiological evidence of retinal ganglion cells dysfunction. Interestingly, for those individuals with available longitudinal ophthalmological data, there was no significant deterioration in visual function during the period of follow-up. Diffusion tensor imaging tractography studies showed defective connections and disorganization of the extracortical visual pathways. To further investigate how pathogenic NR2F1 variants impact on retinal and optic nerve development, we took advantage of an Nr2f1 mutant mouse disease model. Abnormal retinogenesis in early stages of development was observed in Nr2f1 mutant mice with decreased retinal ganglion cell density and disruption of retinal ganglion cell axonal guidance from the neural retina into the optic stalk, accounting for the development of optic nerve hypoplasia. The mutant mice showed significantly reduced visual acuity based on electrophysiological parameters with marked conduction delay and decreased amplitude of the recordings in the superficial layers of the visual cortex. The clinical observations in our study cohort, supported by the mouse data, suggest an early neurodevelopmental origin for the retinal and optic nerve head defects caused by NR2F1 pathogenic variants, resulting in congenital vision loss that seems to be non-progressive. We propose NR2F1 as a major gene that orchestrates early retinal and optic nerve head development, playing a key role in the maturation of the visual system
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