23 research outputs found

    Mapa de ruido de los distritos 10, 11 y 12 de la ciudad de Cochabamba

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    El problema del ruido ha tomado importancia paulatinamente en la ciudad deCochabamba. Para evaluar los niveles a los que están sometidos los habitantes de laciudad, se elaboró un mapa de ruido de los Distritos 10, 11 y 12 de la ProvinciaCercado del Departamento de Cochabamba. El estudio abarcó aproximadamente10,25 km2. En esta área, se muestrearon 54 puntos y se obtuvieron 5.400 datos en untiempo aproximado de 4 meses y medio. Con los datos se hizo un cálculo de nivelesequivalente día y equivalente noche. Con estos indicadores se hizo el análisiscorrespondiente y se determinó que en el día, el 39% de los puntos no cumplen lasnormas vigentes y en la noche un 35% de las mediciones sobrepasaron los límitespermisibles. Considerando el 10% de variación permitido por ley, se determinó que el37% de los datos obtenidos cumplen con la norma en el día y el 41% en la noche. Lospuntos en los cuales los niveles cumplen la norma llegan a un 24% tanto en el díacomo en la noche. Es importante mencionar que si no se aplica el 10% de variación, el76% de los puntos no cumplirían lo establecido por ley

    Metamorphism in TDP-43 prion-like domain determines chaperone recognition

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    The RNA binding protein TDP-43 forms cytoplasmic inclusions via its C-terminal prion-like domain in several neurodegenerative diseases. Aberrant TDP-43 aggregation arises upon phase de-mixing and transitions from liquid to solid states, following still unknown structural conversions which are primed by oxidative stress and chaperone inhibition. Despite the well-established protective roles for molecular chaperones against protein aggregation pathologies, knowledge on the determinants of chaperone recognition in disease-related prions is scarce. Here we show that chaperones and cochaperones primarily recognize the structured elements in TDP-43´s prionlike domain. Significantly, while HSP70 and HSP90 chaperones promote TDP43 phase separation, co-chaperones from the three classes of the large human HSP40 family (namely DNAJA2, DNAJB1, DNAJB4 and DNAJC7) show strikingly different effects on TDP-43 de-mixing. Dismantling of the second helical element in TDP-43 prion-like domain by methionine sulfoxidation impacts phase separation and amyloid formation, abrogates chaperone recognition and alters phosphorylation by casein kinase-1δ. Our results show that metamorphism in the post-translationally modified TDP-43 prion-like domain encodes determinants that command mechanisms with major relevance in diseas

    Two independent epigenetic biomarkers predict survival in neuroblastoma

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    Background: Neuroblastoma (NB) is the most common extracranial pediatric solid tumor with a highly variable clinical course, ranging from spontaneous regression to life-threatening disease. Survival rates for high-risk NB patients remain disappointingly low despite multimodal treatment. Thus, there is an urgent clinical need for additional biomarkers to improve risk stratification, treatment management, and survival rates in children with aggressive NB. Results: Using gene promoter methylation analysis in 48 neuroblastoma tumors with microarray technology, we found a strong association between survival and gene promoter hypermethylation (P = 0.036). Hypermethylation of 70 genes significantly differentiated high-risk survivor patients from those who died during follow-up time. Sixteen genes with relevant roles in cancer biology were further validated in an additional cohort of 83 neuroblastoma tumors by bisulfite pyrosequencing. High promoter methylation rates of these genes were found in patients with metastatic tumors (either stage metastatic (M) or metastatic special (MS)), 18 months or older at first diagnosis, MYCN amplification, relapsed, and dead. Notably, the degree of methylation of retinoblastoma 1 (RB1) and teratocarcinoma-derived growth factor 1 (TDGF1) predicts event-free and overall survival independently of the established risk factors. In addition, low RB1 mRNA expression levels associate with poor prognosis suggesting that promoter methylation could contribute to the transcriptional silencing of this gene in NB. Conclusions: We found a new epigenetic signature predictive for NB patients' outcome: the methylation status of RB1 and TDGF1 associate with poorer survival. This information is useful to assess prognosis and improve treatment selection

    I feel you: the design and evaluation of a domotic affect-sensitive spoken conversational agent

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    We describe the work on infusion of emotion into a limited-task autonomous spoken conversational agent situated in the domestic environment, using a need-inspired task-independent emotion model (NEMO). In order to demonstrate the generation of affect through the use of the model, we describe the work of integrating it with a natural-language mixed-initiative HiFi-control spoken conversational agent (SCA). NEMO and the host system communicate externally, removing the need for the Dialog Manager to be modified, as is done in most existing dialog systems, in order to be adaptive. The first part of the paper concerns the integration between NEMO and the host agent. The second part summarizes the work on automatic affect prediction, namely, frustration and contentment, from dialog features, a non-conventional source, in the attempt of moving towards a more user-centric approach. The final part reports the evaluation results obtained from a user study, in which both versions of the agent (non-adaptive and emotionally-adaptive) were compared. The results provide substantial evidences with respect to the benefits of adding emotion in a spoken conversational agent, especially in mitigating users' frustrations and, ultimately, improving their satisfaction

    Lessons from the COVID-19 air pollution decrease in Spain: Now what?

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    We offer an overview of the COVID-19 -driven air quality changes across 11 metropolises in Spain with the focuson lessons learned on how continuing abating pollution. Trafficflow decreased by up to 80% during the lockdownand remained relatively low during the full relaxation (June and July). After the lockdown a significant shift frompublic transport to private vehicles (+21% in Barcelona) persisted due to the pervasive fear that using publictransport might increase the risk of SARS-CoV-2 infection, which need to be reverted as soon as possible. NO2levels fell below 50% of the WHO annual air quality guidelines (WHOAQGs), but those of PM2.5were reducedless than expected due to the lower contributions from traffic, increased contributions from agricultural and do-mestic biomass burning, or meteorological conditions favoring high secondary aerosol formation yields. Evenduring the lockdown, the annual PM2.5WHOAQG was exceeded in cities within the NE and E regions withhigh NH3emissions from farming and agriculture. Decreases in PM10levels were greater than in PM2.5due to reduced emissions from road dust, vehicle wear, and construction/demolition. Averaged O3daily maximum 8-h(8hDM) experienced a generalized decrease in the rural receptor sites in the relaxation (June–July) with−20%reduced mobility. For urban areas O38hDM responses were heterogeneous, with increases or decreases depend-ing on the period and location. Thus, after canceling out the effect of meteorology, 5 out of 11 cities experiencedO3decreases during the lockdown, while the remaining 6 either did not experience relevant reductions or in-creased. During the relaxation period and coinciding with the growing O3season (June–July), most cities expe-rienced decreases. However, the O3WHOAQG was still exceeded during the lockdown and full relaxationperiods in several cities. For secondary pollutants, such as O3and PM2.5, further chemical and dispersion model-ing along with source apportionment techniques to identify major precursor reduction targets are required toevaluate their abatement potential

    Tomografía computarizada a nivel de C3 y dinamometría como técnicas de diagnóstico de sarcopenia en pacientes con cáncer de cabeza y cuello

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    Introduction: A pilot study that tried to diagnosis sarcopenia by computed tomography (CT) at the third cervical vertebra (C3) and dynamometry in head and neck cancer patients. Comparison of the muscle mass (MM) determined by CT, with classical anthropometric measure and dynamometry techniques.Material and methods: MM and adipose tissue were analyzed by CT at C3 level in 37 oncological patients using Hounsfield Units (HU). Consequently, skeletal muscle index (SMI) and handgrip was determined for the diagnosis of sarcopenia. Finally, SMI was compared by classical anthropometric techniques, as well as by dynamometry.Results: 59.46% of the sample presented a decreased SMI (cm2/m2), 64.86% dynapenia, 54.05% sarcopenia, and 32.43% sarcopenic obesity. On the other hand, mean intermuscular adipose tissue was 6.69 (3.8) cm2, and mean intramuscular adipose tissue 2.06 (1.11) cm2.  In addition, a statistically significant association was found between SMI and strength in strong hand (estimate = 0.412, 95% CI [0.219, 0.605], p-value <0.001) and in the weak hand (estimate = 0.289, IC95% [0.123, 0.454], p-value <0.001). Regarding the branchial muscle circumference, we did not reach to demonstrate a positive correlation.Conclusions: Our study indicates that in head and neck cancer patients there is a high prevalence of sarcopenia. In addition, muscle depletion assessed by CT scans and dynamometry have demonstrate positive correlation, and consequently, those patients with greater muscle depletion at the C3 level have less muscle functionality.Introducción: Estudio piloto que determina el diagnóstico de sarcopenia mediante tomografía computarizada (TC) a nivel de la tercera vértebra cervical (C3) y dinamometría en pacientes con cáncer de cabeza y cuello. Comparación de la masa magra (MM) determinada mediante TC con técnicas clásicas de antropometría y dinamometría.Material y métodos: Se analizó la MM y el tejido adiposo mediante TC a nivel de C3 en 37 pacientes oncológicos mediante Unidades Hounsfield (UH). Posteriormente, se calculó el índice musculoesquelético (IME) y se determinó la fuerza prensora de mano para la determinación de sarcopenia. Por último, se comparó el IME mediante técnicas de valoración antropométrica clásica y dinamometría. Resultados: El 59,46% de los pacientes presentaron un IME (cm2/m2) disminuido, el 64,86% dinapenia, el 54,05% sarcopenia, el 32,43% sarcopenia dentro del sobrepeso y obesidad.  Por otro lado, la media de la masa grasa intermuscular fue 6,69 (3,8) cm2, y la masa grasa intramuscular 2,06 (1,11) cm2. Además, se encontró una asociación estadísticamente significativa entre la fuerza tanto en la mano fuerte (estimado = 0,412, IC95% [0,219; 0,605], p-valor <0,001) como en la mano débil (estimado =0,289, IC95% [0,123; 0,454], p-valor <0,001) y el IME cm2/m2. Respecto a la circunferencia muscular braquial), no alcanzamos a mostrar correlación positiva.Conclusiones: Nuestro estudio muestra que en el paciente con cáncer de cabeza y cuello la prevalencia de sarcopenia es elevada. Además, la depleción muscular evaluada mediante TC a nivel de C3 y dinamometría presenta cierta correlación, por lo que, aquellos pacientes con mayor depleción muscular a nivel de C3 presentan menor funcionalidad

    Tarteso. Nuevas Fronteras (I)

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    El presente volumen recoge las contribuciones presentadas al II Congreso Internacional sobre Tarteso, Nuevas Fronteras, que tuvo lugar en Mérida entre los días 17 y 19 de noviembre de 2021. Su lectura permite un viaje desde el extremo oriental del Mediterráneo hasta el suroeste de la península ibérica, mostrando las diversas realidades históricas acontecidas en este territorio durante la I Edad del Hierro. El objetivo de esta publicación es mostrar la situación que atravesaba el Mediterráneo durante los años de surgimiento y desarrollo de la cultura tartésica para así comprender mejor la formación y evolución de dicha cultura. El conocimiento de Tarteso ha evolucionado sensiblemente en la última década, desde la celebración y publicación de las actas del I Congreso Internacional, Tarteso. El emporio del metal (Almuzara, 2013). La incorporación de nuevas voces y visiones enfocadas al conocimiento de la protohistoria peninsular, así como de algunos temas nunca antes abordados en el conocimiento de Tarteso, permiten presentar en este volumen una visión renovada, donde destaca la incorporación de unos nuevos límites territoriales para esta cultura.Esta publicación se ha beneficiado de las siguientes ayudas para su financiación: Proyecto de Investigación del Plan Nacional I+D+i: “Construyendo Tarteso 2.0: análisis constructivo, espacial y territorial de un modelo arquitectónico en el valle medio del Guadiana” (PID2019-108180GB- I00), financiado por MCIN AEI/10.13039/501100011033). Subvención global de la Secretaría General de Ciencia, Tecnología, Innovación y Universidad de la Junta de Extremadura al Instituto de Arqueología.Peer reviewe

    Value of third metastasectomy of colorectal adenocarcinoma

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    Procedimiento para la recuperación de cromo y bioproductos a partir de residuos peleteros, instalación para llevarlo a cabo y los productos así obtenidos

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    Procedimiento para la recuperación de cromo y bioproductos a partir de residuos peleteros, instalación para llevarlo a cabo y los productos así obtenidos. La invención describe un procedimiento de recuperación de cromo y de bioproductos a partir de un residuo peletero, basado en la oxidación del cromo (III) a cromo (VI) usando peróxidos en un medio alcalino y una instalación industrial para llevarlo a cabo. El cromo y los bioproductos pueden ser utilizados de nuevo, resolviendo un problema de contaminación medioambiental y valorizando productos de desecho.Consejo Superior de Investigaciones Científicas (España), Instituto Químico de SarriáB1 Patente con informe sobre el estado de la ténic

    Procedimiento para la recuperación de cromo y bioproductos a partir de residuos peleteros, instalción para llevarlo a cabo y los productos así obtenidos

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    Fecha de solicitud: 31-12-2008.- Titular: Consejo Superior de Investigaciones Científicas (CSIC)The invention describes a procedure for recycling of chrome and bioproducts from fur waste, based on the oxidation of chrome (III) to chrome (IV) using peroxides in an alkaline medium and an industrial installation for performing same. The chrome and bioproducts can recycled, thereby solving an environmental contamination problem and adding value to waste products.La invención describe un procedimiento de recuperación de cromo y de bioproductos a partir de un residuo peletero, basado en la oxidación del cromo (III) a cromo (VI) usando peróxidos en un medio alcalino y una instalación industrial para llevarlo a cabo. El cromo y los bioproductos pueden ser utilizados de nuevo, resolviendo un problema de contaminación medioambiental y valorizando productos de desecho.Peer reviewe
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