79 research outputs found

    Estimating the Relationship between Reading in Primary Education, Educational Attainment and Social Welfare. The Case of Extremadura (Spain)

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    The purpose of this paper is to analyse the relationship between the Social Welfare Index and the reading habits of primary school students in Extremadura (Spain). A study has been performed which consists of two parts. First, we conducted 4,288 surveys on reading habits in 87 municipalities. Second, we calculated the social welfare index. The statistical analysis refl ects two conclusions: firstly, educational and socio-economic policies have resulted in equal opportunities that allow for similar social possibilities throughout the territory; secondly, Educational Attainment of parents is the most decisive factor in obtaining the best results in terms of students' reading habits

    Contribución de la electrónica y fotónica a la tecnología de la rehabilitación

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    Alrededor de un 15% de la población está afectada en cierto grado por una discapacidad. En la sociedad del bienestar y a las puertas de un nuevo milenio, existe una indudable preocupación por proporcionar a estas personas con discapacidad acceso a servicios similares, y a un mismo grado de independencia que sus conciudadanos. En este sentido, la Tecnología de la Rehabilitación será la encargada de ofrecerles soluciones, productos y servicios que les permitan equipararse con el resto de la sociedad y acceder de forma igualitaria a las mismas tareas, actividades y puestos de trabajo. El soporte tecnológico sobre el que se basarán los citados productos o servicios puede ser variado, aunque disciplinas tradicionales como la electrónica y la fotónica seguirán jugando un papel preponderante.Publicad

    Small-animal PET registration method with intrinsic validation designed for large datasets

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    Proceeding of: 2007 IEEE Nuclear Science Symposium Conference Record (NSS'07), Honolulu, Hawaii, USA, Oct. 27 - Nov. 3, 2007We present a procedure to validate the results of small animal Positron Emission Tomography (PET) image registration by means of consistency measures. Small animal 2-Deoxy-2-[F-18]fluoro-D-glucose (FDG) PET studies do not show the same intensity distribution even for images acquired in similar conditions, as the resulting image is influenced by several variables which are not always completely under control. Because of these difficulties, the results from automatic registration methods have to be visually inspected to detect failures. We propose a method to automate this validation process. Two reference images from the dataset are selected by an expert user avoiding images with poor contrast, animal movement or low quality, and both are co-registered using anatomical landmarks. All the remaining images in the dataset are then registered to every reference with an automatic two-step algorithm based on Mutual Information. The known transformation relating both references allows measuring the registration consistency, which is a good estimator of the accuracy of the alignment process, for every image in the dataset. This value can be used to assess the quality of the registration and therefore detect the incorrect results. We have applied this validation process on a large dataset of 120 FDG-PET rat brain images obtained with a rotating PET scanner. The registration consistency was calculated for every image in the dataset and values below 1.65 mm (PET image resolution) were considered as successful registrations. 116 images were correctly registered with an average error of 0.839 mm, while in four images the proposed method detected a registration failure. Two of these failures were due to very low image quality and these studies were discarded from the study, while the other two were correctly aligned after applying a manual pre-alignment step. Our approach requires minimal user interaction and provides automatic assessment of the registration error, making it unnecessary to visually inspect and check every registration result.This work was supported by projects CIBER CB06/01/0079 (Ministerio de Sanidad y Consumo) and CDTEAM (CENIT program, Ministerio de Industria)

    Psychological Impact of COVID-19 Lockdown on Well-being: Comparisons between People with Obesity, with Diabetes and without Diseases

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    Introduction: Obesity and type 2 diabetes mellitus are two chronic diseases most associated with hospitalizationsand deaths from COVID-19.Background: This study compared psychological impact of COVID-19 lockdown in people with obesity, people with type 2 diabetes (T2D) and people without diseases, and determined the factors associated with well-being.Materials and methods: An online survey on negative affect, attitudes, social support and sharing, coping,well-being, and eating behavior was conducted in 157 people with obesity, 92 with type 2 diabetes and 288without diseases.Results: People with obesity were the most worried of getting infected (70%) or dying (64%) and had the highest levels of emotional eating. People with T2D showed better coping strategies and higher well-being. Negative affect, worries about COVID-19 consequences and uncontrolled eating had negative impact, but social support, social sharing, and coping contributed positively (p < 0.001) to well-being. A 48.7% of people with obesity experienced more difficulties to adhere to treatment compared to only 11.1% of people with T2D.Conclusions: People with obesity had less well-being and more COVID-19 worries and emotional eating than people with T2D and without diseases. Well-being depends on negative affect, worries and eating behavior. Future research about the impact in long-term on weight and health status in patients with chronic diseases is needed

    Arginine deprivation alters microglial polarity and synergizes with radiation to eradicate non-arginine-auxotrophic glioblastoma tumors

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    New approaches for the management of glioblastoma (GBM) are an urgent and unmet clinical need. Here, we illustrate that the efficacy of radiotherapy for GBM is strikingly potentiated by concomitant therapy with the arginine-depleting agent ADI-PEG20 in a non-arginine-auxotrophic cellular background (argininosuccinate synthetase 1 positive). Moreover, this combination led to durable and complete radiological and pathological response, with extended disease-free survival in an orthotopic immune-competent model of GBM, with no significant toxicity. ADI-PEG20 not only enhanced the cellular sensitivity of argininosuccinate synthetase 1–positive GBM to ionizing radiation by elevated production of nitric oxide (˙NO) and hence generation of cytotoxic peroxynitrites, but also promoted glioma-associated macrophage/microglial infiltration into tumors and turned their classical antiinflammatory (protumor) phenotype into a proinflammatory (antitumor) phenotype. Our results provide an effective, well-tolerated, and simple strategy to improve GBM treatment that merits consideration for early evaluation in clinical trials.Fondo de Desarrollo Regional (FEDER). Programa Operativo Epiro 2014-2020National Strategic Reference Frameworks de la Unión Europea. NSRF 2014-2020-5033092Ministerio de Ciencia, Innovación y Universidades de España y fondos FEDER. RTI2018-098645-B-100Consejería de Economía y Conocimiento de la Junta de Andalucía y fondos FEDER. P18- RT-1372Universidad de Sevilla. US-126480

    N-(4-Methoxy-2-nitrophenyl)hexadecanamide, a palmitoylethanolamide analogue, reduces formalin-induced nociception

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    Main methods: The formalin test was used to assess the antinociceptive activity of HD in vivo. The hydrolysis of anandamide catalyzed by fatty acid amide hydrolase (FAAH) was used to determine the action of HD on FAAH activity in vitro. Key findings: Local peripheral ipisilateral, but not contralateral, administration of HD (10-100 μg/paw) produced a dose-dependent antinociceptive effect in rats. The CB 1 and CB 2 receptor antagonists AM281 (0.3-30 μg/paw) and SR144528 (0.3-30 μg/paw), respectively, reduced the antinociceptive effect of HD (100 μg/paw). In addition, methiothepin (0.03-0.3 μg/paw) and naloxone (5-50 μg/paw) significantly reduced HD-induced antinociception (100 μg/paw). In vitro, HD reduced only to a minor extent the hydrolysis of anandamide catalyzed by FAAH. Significance: HD local administration produces antinociception that probably results from an indirect activation of peripheral CB 1 and CB 2 cannabinoid receptors. Data suggest that 5-HT 1 and opioid receptors also participate in the antinociceptive effect of this compound. HD may have potential as analgesic drug

    The miniJPAS & J-NEP surveys: Identification and characterization of the Lyα\alpha Emitter population and the Lyα\alpha Luminosity Function

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    We present the Lyman-aa (Lya) Luminosity Function (LF) at 2.05<z<3.752.05<z<3.75, estimated from a sample of 67 Lya-emitter (LAE) candidates in the J-PAS Pathfinder surveys: miniJPAS and J-NEP. These two surveys cover a total effective area of 1.14\sim 1.14 deg2^2 with 54 Narrow Band (NB) filters across the optical range, with typical limiting magnitudes of 23\sim 23. This set of NBs allows to probe Lya emission in a wide and continuous range of redshifts. We develop a method for detecting Lya emission for the estimation of the Lya LF using the whole J-PAS filter set. We test this method by applying it to the miniJPAS and J-NEP data. In order to compute the corrections needed to estimate the Lya LF and to test the performance of the candidates selection method, we build mock catalogs. These include representative populations of Lya Emitters at 1.9<z<4.51.9<z<4.5 as well as their expected contaminants, namely low-zz galaxies and z<2z<2 QSOs. We show that our method is able to provide the Lya LF at the intermediate-bright range of luminosity (1043.5ergs1LLya1044.5ergs1\rm 10^{43.5} erg\,s^{-1} \lesssim L_{Lya} \lesssim 10^{44.5} erg\,s^{-1}). The photometric information provided by these surveys suggests that our samples are dominated by bright, Lya-emitting Active Galactic Nuclei. At LLya<1044.5L_{{\rm Ly}a}<10^{44.5} erg\,s1^{-1}, we fit our Lya LF to a power-law with slope A=0.70±0.25A=0.70\pm0.25. We also fit a Schechter function to our data, obtaining: Log(\Phi^* / \text{Mpc^{-3}})=-6.30^{+0.48}_{-0.70}, Log(L/ergs1)=44.850.32+0.50(L^*/ \rm erg\,s^{-1})=44.85^{+0.50}_{-0.32}, a=1.650.27+0.29a=-1.65^{+0.29}_{-0.27}. Overall, our results confirm the presence of an AGN component at the bright-end of the Lya LF. In particular, we find no significant contribution of star-forming LAEs to the Lya LF at Log(LLya(L_{\rm Lya} / erg\,s1^{-1})>43.5. This work serves as a proof-of-concept for the results that can be obtained with the upcoming data releases of the J-PAS survey.Comment: 25 pages, 15 figures, submitted to A&

    Electroconvulsive Therapy in Super Refractory Status Epilepticus: Case Series with a Defined Protocol

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    Super-refractory status epilepticus (SRSE) represents a neurological emergency that is characterized by a lack of response to the third line of antiepileptic treatment, including intravenous general anesthetics. It is a medical challenge with high morbidity and mortality. Electroconvulsive therapy (ECT) has been recommended as a nonpharmacologic option of treatment after other alternatives are unsuccessful. Its effect on the cessation of SRSE has been minimally investigated. The objective of this article is to analyze the effect of ECT on SRSE. For this purpose, a multidisciplinary team created a protocol based on clinical guidelines similar to those described previously by Ray et al. (2017). ECT was applied to six patients with SRSE after the failure of antiepileptic treatment and pharmacologic coma.The objective of each ECT session was to elicit a motor seizure for at least 20 s. SRSE was resolved in all patients after several days of treatment, including ECT as a therapy, without relevant adverse effects. Thus, ECT is an effective and feasible option in the treatment of SRSE, and its place in the algorithm in treatment should be studied due to the uncommon adverse effects and the noninvasive character of the therapy

    La renovación de la palabra en el bicentenario de la Argentina : los colores de la mirada lingüística

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    El libro reúne trabajos en los que se exponen resultados de investigaciones presentadas por investigadores de Argentina, Chile, Brasil, España, Italia y Alemania en el XII Congreso de la Sociedad Argentina de Lingüística (SAL), Bicentenario: la renovación de la palabra, realizado en Mendoza, Argentina, entre el 6 y el 9 de abril de 2010. Las temáticas abordadas en los 167 capítulos muestran las grandes líneas de investigación que se desarrollan fundamentalmente en nuestro país, pero también en los otros países mencionados arriba, y señalan además las áreas que recién se inician, con poca tradición en nuestro país y que deberían fomentarse. Los trabajos aquí publicados se enmarcan dentro de las siguientes disciplinas y/o campos de investigación: Fonología, Sintaxis, Semántica y Pragmática, Lingüística Cognitiva, Análisis del Discurso, Psicolingüística, Adquisición de la Lengua, Sociolingüística y Dialectología, Didáctica de la lengua, Lingüística Aplicada, Lingüística Computacional, Historia de la Lengua y la Lingüística, Lenguas Aborígenes, Filosofía del Lenguaje, Lexicología y Terminología
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