Infrared temperature measurement sensors of overhead power conductors

Efficiency in power lines operation is becoming more crucial as the electrification increases and more renewable energies are connected into the grid. New methods and sensors are being added to create smart grids to face these challenges and conductor temperature sensors are one of them. Contact temperature sensors have several problems regarding safety and electronic damage due to the electromagnetic fields induced on the conductors. The goal of this paper is to describe an infrared temperature measurement sensor and to compare contact and non-contact temperatura measurements to estimate the temperature of power lines. Measurements were done for almost a year, storing around 150,000 measures of contact and infrared thermometers for many different weather and load conditions. The results conclude that the infrared system can be successfully used to control the temperature of the overhead conductor within a range of less than 4 _C difference with respect to contact temperature methods for the 88% of the samples and less than 6 _C for the 99%.This research was funded by the EU Regional Development Fund (FEDER) and the Spanish Government under the R+D initiative INNPACTO with reference IPT-2011-1447-920000, ENE-2013-42720-R and RETOS-COLABORACION RTC-2015-3795-3

Pd/TiO2-WO3 photocatalysts for hydrogen generation from water-methanol mixtures

Solar light is inexhaustible, and therefore to take advantage of this energy it is necessary to develop materials capable of absorbing energy in the widest range of the solar spectra. Although TiO2 is one of the most studied photocatalysts, it only absorbs in the UV range. With the aim of increasing this light absorption towards the visible range, in this study Pd and WO3 were supported on bare TiO2 to determine their photocatalytic properties for generating hydrogen from water-methanol mixtures under UVA and solar irradiation. Several parameters for the hydrogen production, such as the amount of Pd and the catalyst as well as the influence of the water matrix were studied. These catalytic materials were characterized by means of inductively coupled plasma with an optical emission spectrophotometer, nitrogen adsorption-desorption isotherms, X-ray diffraction, high resolution – transmission electron microscopy, X-ray photoelectron spectroscopy and diffuse reflectance UV–Vis spectroscopy. The hydrogen evolution was monitored by online gas chromatography. The incorporation of a small amount of Pd (lower than 0.01¿wt%) produced a large increase in the hydrogen production. Furthermore, adding WO3 on the bare titania also increased hydrogen generation. The highest quantum efficiency obtained in this work under solar radiation was 7.7% by the catalyst based on palladium supported on nanotubes of titanium dioxide and tungsten trioxide (Pd/NT-WO3) using an aqueous solution of methanol (50vol%).Peer ReviewedPostprint (author's final draft

Visualización de sistemas termodinámicos en el aula

Memoria ID-0206. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2015-2016

Oxidative stress status in an institutionalised elderly group after the intake of a phenolic-rich dessert

The present study was supported by a grant from Hero España S.A. M. C. R.-T. and J. L. Q. are recipients of a ‘Ramón y Cajal’ contract from the Ministry of Science and Technology and the University of Granada, Spain. We also thank the Fundacio´n Se´neca of the C.A.R.M. (Murcia, Spain) for the fellowship of J. G.-A.The elderly population undergoes a series of physiological and sociological changes common to old age with a high probability of suffering degenerative illness and malnutrition. A dessert rich in phenolic compounds has been designed by using concentrated juices of grape, cherry, blackberry, blackcurrant and raspberry with the aim of it being used as a complementary food in adulthood. In the present study, we investigated the effect of the intake of this dessert (a jar of 200 g daily for a period of 2 weeks), with an antioxidant activity equivalent to ten servings of fruits and vegetables, on several markers of oxidative and antioxidant status in DNA and plasma in a group of elderly individuals. Non-smoking institutionalised elderly subjects were recruited from a pool of volunteers in an old-age home in Murcia (Spain). Twenty-two subjects (six men and sixteen women) participated in the study. The study was designed as a randomised intervention trial with a period of 2 weeks. At days 1 and 15, blood samples were collected to analyse total antioxidant capacity, biochemical parameters, antioxidant vitamins, LDL peroxidation, and DNA damage in peripheral blood lymphocytes. The conclusion of the present study is that a 2-week intervention with our dessert enriched with natural polyphenol compounds in elderly individuals does not give enough time to find changes in the antioxidant and oxidative status. Also, the view that the marked antioxidant ability of polyphenols in vitro does not translate to analogous effects in vivo was confirmed. Moreover, a highly oxidative stress status during ageing was confirmed, together with the need to perform follow-up nutritional studies to improve this situation

MEK5 promotes lung adenocarcinoma

[EN]Lung cancer represents the leading cause of cancer death worldwide [1]. Because of that, intense efforts are being devoted to the development of novel therapeutic strategies to fight the disease [2]. In this respect, identification of new oncogenic drivers offers therapeutic opportunities in tumours in which those molecules or other cooperating elements play a pathophysiological role. Here, we show that the MEK5 mitogen-activated protein kinase kinase has a pivotal role in lung cancer. Originally, this study was initiated with the purpose of evaluating the potential oncogenic role of the MEK5 pathway. In fact, while the MEK5 pathway has been found to be deregulated in several neoplasias [3–6], whether exclusive activation of that pathway promotes tumorigenesis has not previously been addressed. To explore that possibility, we generated transgenic mice engineered to express a constitutively active form of MEK5 by site-directed mutagenesis of the MEK5 Ser311 and Thr315 residues to aspartic acid (MEK5DD) (figure 1a). These acidic amino acid changes result in a MEK5 form in which the aspartic acid substitutions function as phosphomimetic residues [7, 8]. As a consequence, MEK5DD acts as a constitutively active kinase that is able to phosphorylate its downstream target, the ERK5 mitogen-activated protein kinase. Phosphorylation of ERK5 by constitutively active MEK5DD results in sustained activation of ERK5. Such ERK5 phosphorylation ( pERK5) provokes a change in its electrophoretic mobility with respect to unphosphorylated ERK5, a characteristic that can be used to differentiate ERK5 from pERK5 by Western blotting [9]. The MEK5DD cDNA was subcloned into the pCEFL mammalian expression vector, which contains an N-terminal Flag tag sequence that serves to differentiate MEK5DD from endogenous MEK5. Increasing amounts of the cDNA coding for Flag-tagged MEK5DD were transfected in HeLa cells and its expression was analysed by Western blotting with an anti-Flag antibody. As shown in figure 1b, expression of Flag-MEK5DD caused the appearance of pERK5, indicative of pathway activationGrants from the Instituto de Salud Carlos III (ISCIII) (PS09/00868 and PI15/01180) and by the Scientific Foundation of the Spanish Association Against Cancer (AECC)

Anatomy and Histochemistry of the Underground Organs of Climbing Medicinal Plants from the Shore of Rio de la Plata (Argentina)

El objetivo de este estudio fue caracterizar los rizomas y raíces por sus atributos histológico-estructurales y determinar la presencia de compuestos químicos que faciliten la identificación de los taxones de muestras enteras o fragmentadas de los mismos. Se analizó material fresco recolectado en el área de estudio y ejemplares de herbario (LPAG). Para las preparaciones anatómicas se procedió con técnicas usuales para microscopía óptica. Se realizaron reacciones histoquímicas para identificar almidón, mucílagos, lípidos y taninos. Los principales rasgos micrográficos resultaron: las características de las células y número de estratos celulares de la rizodermis y exodermis; el desarrollo de la peridermis; las peculiaridades del parénquima cortical y de la estela; el engrosamiento de las paredes celulares de las células cor ticales adyacentes a la endodermis y de la endodermis; la presencia de reservorios secretores y tipos de cristales. Sobre la base de los datos obtenidos se generaron tablas comparativas con los grupos químicos identificados y construyeron claves dicotómicas de las especies que constituyen una herramienta de valor en el control de calidad botánica.The aim of this paper was to characterize the histological, structural and histochemical attributes of rhizomes and roots in order to facilitate the identification of species from whole or fragmented material. Fresh material, collected in the area of study, and herbarium specimens (LPAG) were analyzed. For the anatomical preparations we proceeded with usual techniques for optical microscopy. Histochemical tests to recognize starch, mucilage, lipophilic substances, and tannins were performed. The main micrographic features were: cell shapes and cell wall thickenings of the rhizodermis and exodermis; the development of the peridermis; peculiarities of the cortical parenchyma and the stele; the thickening degree of the cell walls of cortical cells adjacent to the endodermis and the endodermis; the presence of secretory reservoirs and crystal types. Comparative tables with histochemical results and diacritic keys using micrographic characters from rhizome and roots were generated as a tool for quality control.Facultad de Ciencias Agrarias y ForestalesInstituto de Fisiología Vegeta

Anatomy and Histochemistry of the Underground Organs of Climbing Medicinal Plants from the Shore of Rio de la Plata (Argentina)

El objetivo de este estudio fue caracterizar los rizomas y raíces por sus atributos histológico-estructurales y determinar la presencia de compuestos químicos que faciliten la identificación de los taxones de muestras enteras o fragmentadas de los mismos. Se analizó material fresco recolectado en el área de estudio y ejemplares de herbario (LPAG). Para las preparaciones anatómicas se procedió con técnicas usuales para microscopía óptica. Se realizaron reacciones histoquímicas para identificar almidón, mucílagos, lípidos y taninos. Los principales rasgos micrográficos resultaron: las características de las células y número de estratos celulares de la rizodermis y exodermis; el desarrollo de la peridermis; las peculiaridades del parénquima cortical y de la estela; el engrosamiento de las paredes celulares de las células cor ticales adyacentes a la endodermis y de la endodermis; la presencia de reservorios secretores y tipos de cristales. Sobre la base de los datos obtenidos se generaron tablas comparativas con los grupos químicos identificados y construyeron claves dicotómicas de las especies que constituyen una herramienta de valor en el control de calidad botánica.The aim of this paper was to characterize the histological, structural and histochemical attributes of rhizomes and roots in order to facilitate the identification of species from whole or fragmented material. Fresh material, collected in the area of study, and herbarium specimens (LPAG) were analyzed. For the anatomical preparations we proceeded with usual techniques for optical microscopy. Histochemical tests to recognize starch, mucilage, lipophilic substances, and tannins were performed. The main micrographic features were: cell shapes and cell wall thickenings of the rhizodermis and exodermis; the development of the peridermis; peculiarities of the cortical parenchyma and the stele; the thickening degree of the cell walls of cortical cells adjacent to the endodermis and the endodermis; the presence of secretory reservoirs and crystal types. Comparative tables with histochemical results and diacritic keys using micrographic characters from rhizome and roots were generated as a tool for quality control.Laboratorio de Morfología Comparada de Espermatófita

Circulating carotenoids are associated with favorable lipid and fatty acid profiles in an older population at high cardiovascular risk

© 2022 Marhuenda-Muñoz, Domínguez-López, Langohr, Tresserra Rimbau, Martínez González, Salas-Salvadó, Corella, Zomeño, Martínez, Alonso-Gómez, Wärnberg, Vioque, Romaguera, López-Miranda, Estruch, Tinahones, Lapetra, Serra-Majem, Bueno-Cavanillas, Tur, MartínSánchez, Pintó, Delgado-Rodríguez, Matía-Martín, Vidal, Vázquez, Daimiel, Ros, Toledo, Fernández de la Puente Cervera, Barragán, Fitó, Tojal-Sierra, Gómez-Gracia, Zazo, Morey, García-Ríos, Casas, GómezPérez, Santos-Lozano, Vázquez-Ruiz, Atzeni, Asensio, Gili-Riu, Bullon, Moreno-Rodriguez, Lecea, Babio, Peñas Lopez, Gómez Melis and Lamuela-Raventós. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).Carotenoid intake has been reported to be associated with improved cardiovascular health, but there is little information on actual plasma concentrations of these compounds as biomarkers of cardiometabolic risk. The objective was to investigate the association between circulating plasma carotenoids and different cardiometabolic risk factors and the plasma fatty acid profile. This is a cross-sectional evaluation of baseline data conducted in a subcohort (106 women and 124 men) of an ongoing multi-factorial lifestyle trial for primary cardiovascular prevention. Plasma concentrations of carotenoids were quantified by liquid chromatography coupled to mass spectrometry. The associations between carotenoid concentrations and cardiometabolic risk factors were assessed using regression models adapted for interval-censored variables. Carotenoid concentrations were cross-sectionally inversely associated with serum triglyceride concentrations [-2.79 mg/dl (95% CI: -4.25, -1.34) and -5.15 mg/dl (95% CI: -7.38, -2.93), p-values = 0.0002 and <0.00001 in women and men, respectively], lower levels of plasma saturated fatty acids [-0.09% (95% CI: -0.14, -0.03) and -0.15 % (95% CI: -0.23, -0.08), p-values = 0.001 and 0.0001 in women and men, respectively], and higher levels of plasma polyunsaturated fatty acids [(0.12 % (95% CI: -0.01, 0.25) and 0.39 % (95% CI: 0.19, 0.59), p-values = 0.065 and 0.0001 in women and men, respectively] in the whole population. Plasma carotenoid concentrations were also associated with higher plasma HDL-cholesterol in women [0.47 mg/dl (95% CI: 0.23, 0.72), p-value: 0.0002], and lower fasting plasma glucose in men [-1.35 mg/dl (95% CI: -2.12, -0.59), p-value: 0.001].Peer ReviewedArticle signat per 51 autors/es: María Marhuenda-Muñoz, Inés Domínguez-López, Klaus Langohr, Anna Tresserra-Rimbau, Miguel Ángel Martínez González1,4, Jordi Salas-Salvadó, Dolores Corella, María Dolores Zomeño, J. Alfredo Martínez, Angel M. Alonso-Gómez, Julia Wärnberg, Jesús Vioque, Dora Romaguera, José López-Miranda, Ramón Estruch, Francisco J. Tinahones, José Lapetra, Ll. Serra-Majem, Aurora Bueno-Cavanillas, Josep A. Tur, Vicente Martín-Sánchez, Xavier Pintó, Miguel Delgado-Rodríguez, Pilar Matía-Martín, Josep Vidal, Clotilde Vázquez, Lidia Daimiel, Emilio Ros, Estefanía Toledo, María Fernández de la Puente Cervera, Rocío Barragán, Montse Fitó, Lucas Tojal-Sierra, Enrique Gómez-Gracia, Juan Manuel Zazo, Marga Morey, Antonio García-Ríos, Rosa Casas, Ana M. Gómez-Pérez, José Manuel Santos-Lozano, Zenaida Vázquez-Ruiz, Alessandro Atzeni, Eva M. Asensio, M. Mar Gili-Riu, Vanessa Bullon, Anai Moreno-Rodriguez, Oscar Lecea, Nancy Babio, Francesca Peñas Lopez, Guadalupe Gómez Melis and Rosa M. Lamuela-Raventós.Postprint (published version

Sexting durante el confinamiento en España: prevalencia, motivaciones y variables predictoras

SARS-CoV-2 has resulted in the mandatory isolation of the entire population, reducing the opportunities for casual sexual encounters or between partners who do not live together. However, it is plausible to assume that other forms of sexual contact like sexting are occurring. This research aimed to analyse the behaviours and motivations to engage in sexting and to examine some predictors of mental health and loneliness that could be associated with sexting during confinement. The sample consisted of 510 participants: 280 emerging adults and 230 adults. The results showed higher prevalence of sexting behaviours among emerging adults (vs. adults) and among males (vs. females). Moreover, emerging adults reported more motivations to engage in sexting. Finally, the analysis revealed that loneliness would predict engagement in sexting by emerging adults. These findings could have implications for the implementation of sexual education programmes aimed at achieving adequate social interactions associated with sexting.El SARS-CoV-2 ocasionó el aislamiento obligatorio de toda la población, reduciendo las oportunidades de las relaciones se-xuales casuales o entre parejas no convivientes. No obstante, es viable asumir que se están produciendo otras formas de contacto sexual, como el sexting. El propósito de esta investigación fue analizar los comportamientos y motivaciones involucradas en el sexting y examinar algunos predictores de salud mental y soledad que podrían estar asociados con el sexting durante el confinamiento. La muestra consistió en 510 participantes: 280 jóvenes y 230 adultos. Los resultados mostraron una mayor prevalencia de comportamientos de sexting entre los jóvenes (frente a los adultos), y entre los hombres (frente a las mujeres). Más aún, los jóvenes reportaron más motivaciones para practicar el sexting. Finalmente, el análisis revela que la soledad sería un factor de predicción para la participación de los jóvenes en el sexting. Estos hallazgos podrían tener implicaciones para la puesta en práctica de programas de educación sexual destinados a alcanzar interacciones sociales adecuadas relacionadas con el sexting.Consejeria de Economía, Conocimiento, Empresas y Universidades, Junta de Andalucía [Ref.B-SEJ-472-UGR18]

Memorias : Coloquio Vida Cotidiana y Diseño

1 archivo PDF (259 páginas)Memorias del coloquio realizado en noviembre de 2007 en las instalaciones de la UAM Azcapotzalco en donde la temática, incluyó investigaciones variadas que iban desde utensilios para comer hasta las librerías y vecindades en el siglo XIX, pasando por el diseño japonés, empaques y embalajes, cooperativas y la España Musulmana, todo esto relacionado con la vida cotidiana ya que dicho concepto está modificando la manera en que los científicos sociales se acercan a la realidad