El papel del librero, o cómo Caperucita se escapa del lobo

This paper overviews some elements that take influence into the reading in the society from the bookseller’s point of view. It aims to reinforce the figure of the bookseller, different from the dispenser of books, and to enhance its work. Nowadays, taking into account the excess of information and stimuli to which are subject to daily, the mediator role of the bookseller is necessary, in order to advise, promote and propose the type of reading that best accommodates to the interests and evolutionary process of the reader. The libraries, as cultural space, meet a critical function in a society that chokes to the small trade, where the price is above the attention, the environment and the cultural experience.En este artículo se hace un recorrido por algunos de los elementos que influyen en la lectura dentro de la sociedad desde el punto de vista del librero. Se trata de reivindicar la figura del librero, diferente del dispensador de libros, y poner en valor su trabajo y labor. Hoy día, con el exceso de información y estímulos a los que estamos sometidos a diario, se hace necesario el papel mediador del librero, para poder asesorar, promocionar y proponer el tipo de lectura que mejor se acomoda a los gustos, intereses y proceso evolutivo del lector. Las librerías, como espacio cultural cumplen una función capital en una sociedad que ahoga al pequeño comercio, donde el precio está por encima de la atención, el entorno y la experiencia cultural

The role of bookseller, or how Caperucita escapes from the wolf

En este artículo se hace un recorrido por algunos de los elementos que influyen en la lectura dentro de la sociedad desde el punto de vista del librero. Se trata de reivindicar la figura del librero, diferente del dispensador de libros, y poner en valor su trabajo y labor. Hoy día, con el exceso de información y estímulos a los que estamos sometidos a diario, se hace necesario el papel mediador del librero, para poder asesorar, promocionar y proponer el tipo de lectura que mejor se acomoda a los gustos, intereses y proceso evolutivo del lector. Las librerías, como espacio cultural cumplen una función capital en una sociedad que ahoga al pequeño comercio, donde el precio está por encima de la atención, el entorno y la experiencia cultural.This paper overviews some elements that take influence into the reading in the society from the bookseller’s point of view. It aims to reinforce the figure of the bookseller, different from the dispenser of books, and to enhance its work. Nowadays, taking into account the excess of information and stimuli to which are subject to daily, the mediator role of the bookseller is necessary, in order to advise, promote and propose the type of reading that best accommodates to the interests and evolutionary process of the reader. The libraries, as cultural space, meet a critical function in a society that chokes to the small trade, where the price is above the attention, the environment and the cultural experience

Cooperative scale-free networks despite the presence of detector hubs

Recent results have shown that heterogeneous populations are better suited to support cooperation than homogeneous settings when the Prisoner’s Dilemma drives the evolutionary dynamics of the system. The same occurs when the network growth is coevolving together with the evolutionary dynamics, which also gives rise to highly cooperative scale-free networks. In the latter case, however, the organization of cooperation is radically different with respect to the case in which the underlying network is static. In this paper we study the structure of cooperation in static networks grown together with evolutionary dynamics and show that the general belief that hubs can only be occupied by cooperators does not hold. Moreover, these scale-free networks support high levels of cooperation despite having defector hubs. Our results have several important implications for the explanation of cooperative behavior in scale-free networks and highlight the importance that the formation of complex systems have on its function.YM is supported by MICINN (Spain) through the Ram´on y Cajal Programme. This work has been partially supported by MICINN through Grants FIS2006-12781- C02-01, FIS2008-01240 and MOSAICO, and by Comunidad de Madrid (Spain) through Grant SIMUMAT-CM.Publicad

Differentiation of Trichuris species using a morphometric approach

Trichuris trichiura is a nematode considered as the whipworm present in humans and primates. The systematics of the genus Trichuris is complex. Morphological studies of Trichuris isolated from primates and humans conclude that the species infecting these hosts is the same. Furthermore, numerous molecular studies have been carried out so far to discriminate parasite species from humans and Non-Human Primates using molecular techniques, but these studies were not performed in combination with a parallel morphological study. The hypothesised existence of more species of Trichuris in primates opens the possibility to revise the zoonotic potential and host specificity of T. trichiura and other putative new species of whipworms. In the present work, a study of Trichuris Roederer, 1761 (Nematoda:Trichuridae) parasitizing C. g. kikuyensis, P. ursinus, Macaca sylvanus, Pan troglodytes, and Sus scrofa domestica has been carried out using modern morphometric techniques in order to differentiate populations of Trichuris isolated from four species of captive NHP from different geographical regions, and swine, respectively. The results obtained revealed strong support for geometrical morphometrics as a useful tool to differentiate male Trichuris populations. Therefore, morphometrics in combination with other techniques, such as molecular biology analyses, ought to be applied to further the differentiation of male populations. On the other hand, morphometrics applied to female Trichuris species does not seem to contribute new information as all the measurements combinations of obtained from females always showed similar resultsMinistry of Economy,Industry and Competitiveness(CGL2017-83057)FEDER funds, the Junta de Andalucía (BIO-338)V Plan Propio de Investigación of the University of Sevill

Mini-taller de escritura cooperativa

Motivación, sensibilización, metaescritura, producción creativa de textos,trabajo cooperativo y autoevaluación son las palabras que resumen los objetivos eintenciones de este trabajo.Para lograrlo hemos seleccionado dos textos y una serie de actividades queconjugan esos objetivos fomentando la metaescritura (reflexión sobre los propioshábitos de escritura y expresión escrita de los mismos) y el desarrollo de procesos delectura, comprensión, interacción, escritura, revisión, autoevaluación, etc

A cephalometric study in children from Medellin aged 3 to 6 Years with class i dental occlusion

ABSTRACT: The few available studies that have been done with digital lateral cephalic x-rays in children younger than 6 years makes it necessary to conduct research on this age group. The purpose of this study was to determine the average cephalometric measures in children from the municipality of Medellín aged 3 to 6 years with class I dental occlusion, by estimating differences by age, sex, facial biotype, weight and size. Methods: this was a descriptive transversal study using digital lateral cephalic radiographs in 99 children aged 3 to 6 years who met the inclusion criteria in order to determine cephalometric averages. Results: between the ages of 3 and 4 years there is more sexual dimorphism, with more protrusive maxilla and mandible in girls; these differences are lower at the age of 5, becoming undetectable at the age of 6. The behavior of variables by age show that longitudinal measures tend to increase with age. Dolichofacial kids showed higher values in the anterior-posterior direction of linear measures, while leptofacial kids showed higher values in the angular measures in the vertical direction. There were no statistically significant differences in terms of weight/height relationship with cephalometric variables. Conclusions: the value of linear measures rises as age increases, supporting the use of specific standards for each age. This study suggests that there is sexual dimorphism among cephalometric variables, being more evident at the age of 3 and 4 years. The different facial biotypes show specific cephalometric features.RESUMEN: Los pocos estudios hechos con radiografía cefálica lateral digital en niños menores de 6 años, hace necesario investigar en dicho grupo etario. El propósito del presente estudio fue determinar las medidas cefalométricas promedio en niños de 3 a 6 años con oclusión dental clase I, residentes en el municipio de Medellín, estimando diferencias por edad, sexo, biotipo facial, peso y talla. Métodos: se hizo un estudio descriptivo de corte transversal, en donde se tomó una radiografía cefálica lateral digital, a 99 niños de 3 a 6 años que cumplieron los criterios de inclusión para determinar promedios cefalométricos. Resultados: entre 3 y 4 años existe mayor dimorfismo sexual, presentando las niñas maxilar y mandíbula más protrusivos, estas diferencias son menores a los 5 años, llegando a ser imperceptibles a los 6. El comportamiento de las variables por edad evidencia que las medidas longitudinales tienden a aumentar con la edad. Los niños dólico presentaron valores mayores en las medidas lineales en sentido anteroposterior, mientras que los lepto mostraron valores mayores en las medidas angulares en sentido vertical. No hubo diferencias estadísticamente significativas en la relación peso y talla con las variables cefalométricas. Conclusiones: el valor de las medidas lineales aumenta a medida que aumenta la edad, lo que justifica el uso de estándares específicos para cada edad. Esta investigación sugiere que existe dimorfismo sexual entre las variables cefalométricas, siendo más evidente a los 3 y 4 años. Los diferentes biotipos faciales exhiben características cefalométricas específicas

Interactive effects of solar radiation and inorganic nitrogen on biofiltration, biomass production, photosynthetic activity and the accumulation of bioactive compounds i

Interactive effects of solar radiation and inorganic nitrogen and phosphate on biofiltration capacity, biomass production, photosynthetic activity and the accumulation of bio-active compounds were studied in the red alga Gracilaria cornea grown in tanks with a seawater open-flow system during 35 days. Two light conditions were utilized: outdoor (O), full solar natural radiation, and indoor, inside of a greenhouse (G) where UV-B radiation was cut-off and part of the UV-A radiation was filtered. Two inorganic nitrogen and phosphate concentrations were used: High nutrients (HN; 100–200μM of NH4+ and 20μM of KHPO4) and Low nutrients (LN; 10–20μM of NH4+ and 1μM of KHPO4). Growth and biomass productivity were related to the daily integrated electron transport rate determined in situ, as an estimator of daily photosynthetic activity. Nitrogen uptake efficiency (NUE) was close to 100 % under LN, whereas under HN it ranged from 50 to 70 % in the first week of culture, decreasing to 10–15 % in the rest of the experimental period. Nitrogen uptake rate (NUR) ranged from 20 to 45 mmol N m−2 h−1 under HN, and 5 to 18 mmol N m−2 h−1 in LN treatments. Morphological and pigmentation changes were evident through the culture period. The thalli under HN were more reddish under the indoor treatments, than that in LN. The internal compounds increased throughout the experimental period. Mycosporine-like amino acids (MAAs) were accumulated under HN. N plays a photoprotective role due to both the increased photosynthesis and the MAA content. Maximal MAA productivity reached 113–253 mg MAAs m−2 d−1 under the O-HN treatment, the highest level reported until now in the bibliography. G. cornea could be used for bioremediation of high N content waters. In addition, under full solar radiation and high N availability produce high levels of bioactive compounds as MAAs, polyphenols and biliproteins for cosmeceutical applications.This study was financed by resources of the Photobiology and Biotechnology of aquatic organisms (FYBOA-RNM 295) research group and the Project “Photoprotectors of marine algae: compatible cosmeceutics to the ocean” (UMA18-FEDER JA-162) and Nazca Project (P20-00458) of the Andalusian Goverment. Funding for open access charge: Universidad de Málaga / CBUA

Hacia la convergencia europea. Nuestros indicadores de calidad y su mejora

La convergencia hacia el Espacio Europeo de Educación Superior nos obliga a la modificación de nuestras titulaciones y la Ley Orgánica de Universidades, a que estas nuevas enseñanzas sean de calidad. Por lo tanto nos enfrentamos a un proceso de revisión y evaluación para el que quizás no estemos preparados. Analizando los criterios de calidad dictados por la Agencia Nacional de Evaluación de la Calidad y Acreditación (ANECA) y por el borrador del Libro Blanco del título de Grado en Ingeniería Informática, realizamos un análisis de la situación en la que se encuentran las titulaciones de Informática en la Universidad de Extremadura. Buscamos un punto de referencia para comenzar a mejorar y prepararnos para una nueva situación a punto de llegar

Una propuesta de primer curso de programación basada en competencias transversales

Uno de los objetivos de la elaboración de un plan docente para la materia de programación en un primer curso del título de grado en Ingeniería Informática adaptado al Espacio Europeo de Educación Superior es fijar, además de los contenidos propios que estas asignaturas deben contemplar, un conjunto de actividades que permitan al alumno empezar a adquirir algunas de las competencias transversales que debe alcanzar al finalizar su proceso formativo. En este trabajo se presenta una propuesta de actividades, en el marco de un primer curso de programación, para conseguir algunas de estas competencias, tratando además que sean independientes del enfoque elegido a la hora de seleccionar los contenidos en cada materia, lo que permitirá que esta propuesta pueda ser utilizada de forma más generalizada.Este trabajo está financiado parcialmente por la I Convocatoria de acciones para la adaptación de la Universidad de Extremadura al EEES

Evaluation of new ceramic electrodes based on Sb-doped SnO2 for the removal of emerging compounds present in wastewater

[EN] The properties of the ceramic electrodes make them interesting for electrochemical advanced oxidation processes (EAOPs), destined to the elimination of emergent or refractory contaminants, as an alternative to boron doped-diamond (BDD) electrodes. For this purpose, new ceramic electrodes based on Sb-doped SnO2 have been developed. Sb-doped tin oxide electrodes have been obtained through mechanical mixing of raw materials and sintering of dry-pressed specimens. Different sintering temperatures (1050 degrees C to 1250 degrees C) were considered. The electrochemical behavior of the resulting electrodes has been compared to that exhibited by Pt and BDDs electrodes. The oxygen discharge potential (E-02) for the ceramic electrodes decreases as the sintering temperature increases, being these values higher than that observed for the Pt electrode and smaller than that for the BDD electrode. This result in a highest rate of COD removal for the electrode sintered at 1050 degrees C comparing with the rest of ceramic electrodes under potentiostatic operation. On the other hand, in galvanostatic mode, the performance of the different ceramic electrodes in terms of the degradation of Norfloxacin, used as tested antibiotic, was similar. Comparing the behavior of the ceramic electrode sintered at 1250 degrees C and that of the BDD electrode at an applied potential of 3 V, it is inferred that although both present similar values in terms of the degradation of Norfloxacin, the rate of removal of the chemical oxygen demand is higher in the case of the BDD.The authors thanks to Ministerio de Economia y Competitividad (projects number: CTQ2015-65202-C2-1-R and CTQ2015-65202-C2-2R) and to Fondo Europeo de Desarrollo Regional (FEDER) the support to this research.Mora-Gómez, J.; García Gabaldón, M.; Ortega Navarro, EM.; Sánchez-Rivera, M.; Mestre, S.; Pérez-Herranz, V. (2018). Evaluation of new ceramic electrodes based on Sb-doped SnO2 for the removal of emerging compounds present in wastewater. Ceramics International. 44(2):2216-2222. https://doi.org/10.1016/j.ceramint.2017.10.178S2216222244