Actividad de búsquedas en internet como variable para determinar la afluencia a museos

Tanto Internet como las nuevas tecnologías tienen cada vez más importancia en las investigaciones académicas o profesionales que se realizan. Con este trabajo tratamos de analizar si las estadísticas de búsqueda en un buscador como Google tienen capacidad de predicción respecto al número visitantes que van a acudir a un museo. Se trata de demostrar científicamente a través de un modelo econométrico que las estadísticas de búsqueda en Google sirven para conocer la posibilidad de visitantes de un museo. Con este artículo se pretenden realizar nuevas aportaciones a la gestión de los museos y sugerir la utilización de datos existentes que permitan conocer con cierta antelación la afluencia de público que se tendrá y así poder desarrollar estrategias

Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier

Phenol is an expensive and toxic raw material derived from petroleum, for these reasons, it’s necessary to take a look for alternative materials in order to replace it. Lignin represents a good choice, especially in phenolic resins obtained from the polycondensation reaction between formaldehyde and an excess of phenol. As an analytical technique for the curing study, the Fourier transform infrared spectroscopy (FT-IR) was used. Unmodified novolac resin (PF) and four lignin modified resins were analyzed. Lignin modified resins correspond to: lignin isolated at pH4 (PFL), lignin isolated at pH2 (PFLpH2), phenolated lignin (PFLFen) and demethylated lignin (PFLDes). Samples were cured at two different concentrations of HTMA. Curing analysis includes conversion curves. According with these results, non-significant variations on final conversion of PFLFen respect to PF were observed. For other resin samples, reductions on the final conversion were observed. On the other hand for all samples, when the weight percentage of HMTA increases reductions on the cure conversion were observed.Fil: Martínez, Juan David. Universidad Pontificia Bolivariana; BoliviaFil: Gómez Hoyos, Catalina. Universidad Pontificia Bolivariana; Bolivia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Restrepo Cadavid, Daniel. Universidad Pontificia Bolivariana; BoliviaFil: Gañán Rojo, Piedad Felisinda. Universidad Pontificia Bolivariana; Bolivi

A novel ensemble method for electric vehicle power consumption forecasting: Application to the Spanish system

The use of electric vehicle across the world has become one of the most challenging issues for environmental policies. The galloping climate change and the expected running out of fossil fuels turns the use of such non-polluting cars into a priority for most developed countries. However, such a use has led to major concerns to power companies, since they must adapt their generation to a new scenario, in which electric vehicles will dramatically modify the curve of generation. In this paper, a novel approach based on ensemble learning is proposed. In particular, ARIMA, GARCH and PSF algorithms' performances are used to forecast the electric vehicle power consumption in Spain. It is worth noting that the studied time series of consumption is non-stationary and adds difficulties to the forecasting process. Thus, an ensemble is proposed by dynamically weighting all algorithms over time. The proposal presented has been implemented for a real case, in particular, at the Spanish Control Centre for the Electric Vehicle. The performance of the approach is assessed by means of WAPE, showing robust and promising results for this research field.Ministerio de Economía y Competitividad Proyectos ENE2016-77650-R, PCIN-2015-04 y TIN2017-88209-C2-R

Aportes de la teoría ecológica a la construcción de la neuropsicopedagogía infantil

Neuro psychopedagogy requires to be considered not only within the sphere of the subject, but also within the context that surrounds him/her as it is the place where the subject fulfils his/her necessities and develops, too. This article focuses on the analysis of contributions made to Neuro psychopedagogy from neurosciences, neuropsychology, psychopedagogy and the social ecological model (Bronfrenbrener´s model). Afterwards, a holistic approach to evaluation and intervention that considers both the different contexts where the student are immersed as well as the people who interact with him/her is proposed.KeywordsLa Neuropsicopedagogía demanda trascender de pensarse no solamente en el sujeto, sino también en el contexto que lo rodea, ya que es en este donde se suplen sus necesidades y se desarrolla. Este artículo se centra en analizar los aportes que se realizan a la neuropsicopedagogía, desde los postulados de las neurociencias, la neuropsicología, la psicopedagogía y el modelo ecológico (modelo de Bronfrenbrener) para, a partir de allí, proponer un enfoque holístico e integral para la evaluación e intervención que tenga en cuenta los diferentes sistemas en los que se encuentre inmerso el menor evaluado y que incluya a las personas que interactúen con él en dichos contextos

Evaluación de la calidad del servicio de Nutrimos & Servimos SAS. Estudio piloto

53 páginas : ilustraciones, gráficos.The investigation was carried out in order to evaluate from the perspective of the client the quality in the service that the company "Nutrimos y Servi mos" provide to casinos and hospitals of the city of Cartagena. The methodology that was implemented for the investigation was the Servqual model, which bases its evaluation by measuring the difference between perceptions and expectations of the client, this methodology suggests us to examine different variables that are related to the social, cultural and economic context in which develops the activity object of analysis. This research helps to identify shortcomings in the provision of the service that serve as input to formulate a plan for continuous and sustained improvement of the service providedSe llevó a cabo una investigación "Prueba piloto" con el fin de evaluar desde la perspectiva del cliente la calidad en el servicio que presta la empresa nutrimos y servimos en los principales casinos y clínicas de la ciudad de Cartagena. La metodología que se implementó para la investigación fue el modelo Servqual, el cual fundamenta su evaluación midiendo la diferencia entre percepciones y expectativas del cliente, esta metodología nos sugiere examinar distintas variables que guardan relación con el contexto social, cultural y económico en el que se desarrolla la actividad objeto de análisis. Esta investigación ayuda a identificar falencias en la prestación del servicio que sirvan de insumo para formular un plan de mejoramiento continua y sostenido del servicio prestadoMagíster en MercadeoMaestrí

La escuela como medio de movilidad social rural: reflexiones en torno a la evidencia empírica

El propósito de este artículo es dar una mirada crítica a la escuela como medio de movilidad social rural, estableciendo un balance entre las expectativas creadas durante el paso por el sistema escolar y las posibilidades de concreción visualizadas por los individuos, las comunidades y sociedades rurales, destacando, al final del documento, la lectura de género. En atención a la importancia de la familia y la escuela como principales instancias de socialización, lo expuesto por padres, hijos y maestros constituye el principal insumo de análisis e interpretación. Lo dicho se deriva de la labor investigativa adelantada en dos instituciones educativas del municipio de Manizales, Caldas, que en conjunto acogen a buena parte de los estudiantes provenientes de las zonas rurales del suroccidente de la ciudad

Página web del grupo bilingüe de la Facultad de Educación para la enseñanza de las ciencias: elaboración, explotación y juicio crítico de los estudiantes de cara a la internacionalización de la docencia

Elaboración de una página web con material didáctico de Ciencias para el grupo bilingüe de Educación, que además sirve para ofrecer información para estudiantes que pudieran estar interesados en formar parte del grupo, incluyendo estudiantes extranjeros

Follow-up in healthy schoolchildren and in adolescents with DOWN syndrome: psycho-environmental and genetic determinants of physical activity and its impact on fitness, cardiovascular diseases, inflammatory biomarkers and mental health; the UP&DOWN Study

[Background] An objective diagnosis of sedentary behaviour as well as of the physical activity and fitness levels in youth and to better understand how lifestyle is associated with cardiovascular disease risk factors and other phenotypes is of clinical and public health interest, and might be informative for developing intervention studies focused on the promotion of physical activity in these population. The aim of this methodological paper is to describe the design and assessment in the UP&DOWN study. [Methods/Design] The UP&DOWN study is a multi-center follow-up design where 2225 Spanish primary and secondary schoolchildren from Cadiz and Madrid, respectively, as well as 110 Spanish adolescents with Down syndrome from Madrid and Toledo were recruited to be assessed. Nine main measurement categories are assessed: i) socio-demographic and early determinants; ii) environmental determinants; iii) physical activity and sedentary behaviour; iv) health-related fitness; v) blood pressure and resting heart rate; vi) mental health; vii) dietary patterns; viii) blood samples; and ix) genetic analysis. During the 3-yr follow-up study, socio-demographic and early determinants, and genetic analysis are only assessed in the first year. Blood sampling is assessed in the first year and the third year (2nd follow-up), and all the other measurements are assessed every year. [Discussion] The findings of the UP&DOWN study may help the Health Information Systems and policy makers to identify the target population for primary prevention and health promotion policies, and to develop and test preventive strategies. Moreover, these data will allow following the trends at population level, as well as to modify/adapt/create new evidence-based physical activity guidelines at national level. The findings will also serve as a scientific platform for interventional studies.This study was supported by the DEP 2010-21662-C04-00 (DEP 2010-21662-C04-01, DEP 2010-21662-C04-02, DEP 2010-21662-C04-03, DEP 2010-21662-C04-04) RYC-2010-05957 grants from the National Plan for Research, Development and Innovation (R + D + i) MICINN

Effect of biofertilizers on broccoli yield and soil quality indicators

High rates of fertilizer applications potentially have significant environmental consequences, such as soil and water contamination and biodiversity loss. This study aimed to compare the use of biofertilizers and inorganic fertilizers in a broccoli crop to determine their impact on soil microorganism abundance, microbial community structure, functional gene diversity, yield, and greenhouse gas emissions. Four different fertilization treatments were designed: (i) inorganic fertilizers applied at a rate to cover the nutritional demands of the crop (F100); (ii) 50% of the rate of inorganic fertilizers added in F100 (F50); (iii) F50 + the application of a formulation of various bacteria (BA); and (iv) F50 + the application of a formulation of bacteria and non-mycorrhizal fungi (BA + FU). The results showed that reduced fertilization and the addition of both biofertilizer products had no significant effect on soil nutrients, microbial population, microbial activity, or yield when compared to conventional inorganic fertilization. Thus, microbial inoculants were ineffective in enhancing soil microbial abundance and activity, and there were no changes in GHG emissions or crop yields. Nonetheless, crop yield was positively related to total soil N, microbial activity, and CO2 emissions, confirming the positive effect of soil biodiversity on production. The application of biofertilizers can help reduce mineral fertilization in a broccoli crop with no negative effect on yield

Glutathione peroxidase contributes with heme oxygenase-1 to redox balance in mouse brain during the course of cerebral malaria

Oxidative stress has been attributed both a key pathogenic and rescuing role in cerebral malaria (CM). In a Plasmodium berghei ANKA murine model of CM, host redox signaling and functioning were examined during the course of neurological damage. Host antioxidant defenses were early altered at the transcriptional level indicated by the gradually diminished expression of superoxide dismutase-1 (sod-1), sod-2, sod-3 and catalase genes. During severe disease, this led to the dysfunctional activity of superoxide dismutase and catalase enzymes in damaged brain regions. Vitagene associated markers (heat shock protein 70 and thioredoxin-1) also showed a decaying expression pattern that paralleled reduced expression of the transcription factors Parkinson disease 7, Forkhead box O 3 and X-box binding protein 1 with a role in preserving brain redox status. However, the oxidative stress markers reactive oxygen/nitrogen species were not accumulated in the brains of CM mice and redox proteomics and immunohistochemistry failed to detect quantitative or qualitative differences in protein carbonylation. Thus, the loss of antioxidant capacity was compensated for in all cerebral regions by progressive upregulation of heme oxygenase-1, and in specific regions by early glutathione peroxidase-1 induction. This study shows for the first time a scenario of cooperative glutathione peroxidase and heme oxygenase-1 upregulation to suppress superoxide dismutase, catalase, heat shock protein-70 and thioredoxin-1 downregulation effects in experimental CM, counteracting oxidative damage and maintaining redox equilibrium. Our findings reconcile the apparent inconsistency between the lack of oxidative metabolite build up and reported protective effect of antioxidant therapy against CM.Ministerio de Educación y Ciencia (España)Universidad Complutense de MadridDepto. de Bioquímica y Biología MolecularFac. de FarmaciaTRUEpu