21 resultados para Microstructual Heterogeneity


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[EUS] Lan honen helburua egoera posturala eta bizkarreko minaren pertzepzioaren azterketa sakonagoa egitea da. Bizkarreko min zein desoreka posturalek gaur egun duten nagusitasuna ikusita, egoera azaleratu eta honen kausak zeintzuk diren ezagutu nahi dira. Honetarako UPV-EHUko Jarduera Fisikoaren eta Kirolaren Zientzien Fakultateko ikasleen (n=25) postura-aldaketak zein bizkarreko minaren magnitudea eta pertzepzioa nolakoak diren aztertuko ditugu. Egindako analisia longitudinala izan da. Ikasketetan sartu zirenean lehenengo neurketa egin zitzaien eta ikasketen azkeneko urtean azken neurketa. QPS-200 Shekel Posture Analyzer erremintari esker pisuaren banaketaren datu numerikoak lortu ditugu. Bizkarreko mina eta pertzepzioari dagozkienez, NASS osasun galdetegia erabili izan da. Posturaren neurketek erakutsi dutenez, bariazio handiena pertsonen artekoa da. Hetereogeneotasun handiena aurre-atze banaketak azaleratu duelarik, gehienbat lehenengo neurketan (2012: DS=9,33 begiak zabalik eta DS=9,99 begiak itxita; 2014: DS=7,37 begiak zabalik eta DS=7,94 begiak itxita). Aurkitu den efektu signifikatibo bakarra (p<0.05), bestalde, neurketa data da. Bizkarreko minaren pertzepzioak gora egin du urteak aurrera joan ahala (subjektuen %64 2012an; subjektuen %72 2014an) baina egunerokotasunean minak sortzen dituen zailtasunak behera egin du (%28 2012an; %20 2014an).

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Background: The impact of socio-demographic factors and baseline health on the mortality burden of seasonal and pandemic influenza remains debated. Here we analyzed the spatial-temporal mortality patterns of the 1918 influenza pandemic in Spain, one of the countries of Europe that experienced the highest mortality burden. Methods: We analyzed monthly death rates from respiratory diseases and all-causes across 49 provinces of Spain, including the Canary and Balearic Islands, during the period January-1915 to June-1919. We estimated the influenza-related excess death rates and risk of death relative to baseline mortality by pandemic wave and province. We then explored the association between pandemic excess mortality rates and health and socio-demographic factors, which included population size and age structure, population density, infant mortality rates, baseline death rates, and urbanization. Results: Our analysis revealed high geographic heterogeneity in pandemic mortality impact. We identified 3 pandemic waves of varying timing and intensity covering the period from Jan-1918 to Jun-1919, with the highest pandemic-related excess mortality rates occurring during the months of October-November 1918 across all Spanish provinces. Cumulative excess mortality rates followed a south-north gradient after controlling for demographic factors, with the North experiencing highest excess mortality rates. A model that included latitude, population density, and the proportion of children living in provinces explained about 40% of the geographic variability in cumulative excess death rates during 1918-19, but different factors explained mortality variation in each wave. Conclusions: A substantial fraction of the variability in excess mortality rates across Spanish provinces remained unexplained, which suggests that other unidentified factors such as comorbidities, climate and background immunity may have affected the 1918-19 pandemic mortality rates. Further archeo-epidemiological research should concentrate on identifying settings with combined availability of local historical mortality records and information on the prevalence of underlying risk factors, or patient-level clinical data, to further clarify the drivers of 1918 pandemic influenza mortality.

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Service provisioning in assisted living environments faces distinct challenges due to the heterogeneity of networks, access technology, and sensing/actuation devices in such an environment. Existing solutions, such as SOAP-based web services, can interconnect heterogeneous devices and services, and can be published, discovered and invoked dynamically. However, it is considered heavier than what is required in the smart environment-like context and hence suffers from performance degradation. Alternatively, REpresentational State Transfer (REST) has gained much attention from the community and is considered as a lighter and cleaner technology compared to the SOAP-based web services. Since it is simple to publish and use a RESTful web service, more and more service providers are moving toward REST-based solutions, which promote a resource-centric conceptualization as opposed to a service-centric conceptualization. Despite such benefits of REST, the dynamic discovery and eventing of RESTful services are yet considered a major hurdle to utilization of the full potential of REST-based approaches. In this paper, we address this issue, by providing a RESTful discovery and eventing specification and demonstrate it in an assisted living healthcare scenario. We envisage that through this approach, the service provisioning in ambient assisted living or other smart environment settings will be more efficient, timely, and less resource-intensive.

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Este trabajo se ha desarrollado a partir de la edición de las inscripciones romanas del País Vasco dentro del proyecto PETRAE Hispaniarum (Université Michel de Montaigne-Bordeaux III, Francia).

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549 pp. (Bibliogr. pp. 501-522) (Conclusiones pp. 467-483/ Conclusions pp. 484-497)

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Lymphangioleiomyomatosis (LAM) is a rare lung-metastasizing neoplasm caused by the proliferation of smooth muscle-like cells that commonly carry loss-of-function mutations in either the tuberous sclerosis complex 1 or 2 (TSC1 or TSC2) genes. While allosteric inhibition of the mechanistic target of rapamycin (mTOR) has shown substantial clinical benefit, complementary therapies are required to improve response and/or to treat specific patients. However, there is a lack of LAM biomarkers that could potentially be used to monitor the disease and to develop other targeted therapies. We hypothesized that the mediators of cancer metastasis to lung, particularly in breast cancer, also play a relevant role in LAM. Analyses across independent breast cancer datasets revealed associations between low TSC1/2 expression, altered mTOR complex 1 (mTORC1) pathway signaling, and metastasis to lung. Subsequently, immunohistochemical analyses of 23 LAM lesions revealed positivity in all cases for the lung metastasis mediators fascin 1 (FSCN1) and inhibitor of DNA binding 1 (ID1). Moreover, assessment of breast cancer stem or luminal progenitor cell biomarkers showed positivity in most LAM tissue for the aldehyde dehydrogenase 1 (ALDH1), integrin-beta 3 (ITGB3/CD61), and/or the sex-determining region Y-box 9 (SOX9) proteins. The immunohistochemical analyses also provided evidence of heterogeneity between and within LAM cases. The analysis of Tsc2-deficient cells revealed relative over-expression of FSCN1 and ID1; however, Tsc2-deficient cells did not show higher sensitivity to ID1-based cancer inhibitors. Collectively, the results of this study reveal novel LAM biomarkers linked to breast cancer metastasis to lung and to cell stemness, which in turn might guide the assessment of additional or complementary therapeutic opportunities for LAM.