La salud de la información científica

La información sobre Ciencia y Medicina ejerce una singular atracción. Este artículo, tras explicar lo que debe entenderse por alfabetización científica y comprensión de la Ciencia por la ciudadanía, presenta una visión actual del tema desde tres puntos clave: las fuentes de información científica, con especial incidencia en el proceso de revisión de originales en revistas científicas; el trabajo de los transmisores de esa información, sobre todo en la Prensa escrita; y, finalmente, la vinculación del Periodismo sobre ciencia con el público al que se dirige.Zientzia eta Medikuntzari buruzko informazioak erakarpen berezia du. Artikulu honetan, zientzia alfabetatzeaz eta Zientzia ulertzeaz herritarrek zer aditu behar duten azaldu ondoren, gaiaren egungo ikuspegia aurkezten da funtsezko hiru puntuotatik ikusia: zientzia informazioaren iturriak, zientzia aldizkarietako originalak berriro aztertzeko prozesua bereziki nabarmentzen dela; informazio horren berri emaileen lana,batez ere idatzizko Prentsan; eta, azkenik, zientziari buruzko Kazetaritzaren eta beraren helburua den publikoaren arteko lotura.L'information sur la Science et la Médecine exerce une attraction singulière. Cet article, après l'ex-plication de ce que l'on doit comprendre par alphabétisation scientifique et compréhension de la Sciencepar l'ensemble de la population, présente une vision actuelle du sujet à partir de trois points clés: les sources d'information scientifique, avec une incidence spéciale sur le processus de révision des originaux dans les revues scientifiques; le travail des transmetteurs de cette information, surtout dans la Presse écrite; et, finalement, le lien du Journalisme sur la science avec le public au quel il s'adresse.Information on science and medicine exercises a singular attraction. This article, after explaining what is to be understood as scientific literacy and comprehension of science by the citizenry, introduces the current vision of the topic from three key issues: the sources of scientific information, with special incidence on the process of revision of originals in scientific journals; the work of the transmitters of such information, especially in the written press; and, finally,the links of science journalism with the public to which it is directed

Human and Object Recognition with a High-resolution tactile sensor

This paper 1 describes the use of two artificial intelligence methods for object recognition via pressure images from a high-resolution tactile sensor. Both meth- ods follow the same procedure of feature extraction and posterior classification based on a supervised Supported Vector Machine (SVM). The two approaches differ on how features are extracted: while the first one uses the Speeded-Up Robust Features (SURF) descriptor, the other one employs a pre-trained Deep Convolutional Neural Network (DCNN). Besides, this work shows its applica- tion to object recognition for rescue robotics, by distinguishing between differ- ent body parts and inert objects. The performance analysis of the proposed methods is carried out with an experiment with 5-class non-human and 3-class human classification, providing a comparison in terms of accuracy and compu-tational load. Finally, it is discussed how feature-extraction based on SURF can be obtained up to five times faster compared to DCNN. On the other hand, the accuracy achieved using DCNN-based feature extraction can be 11.67% superior to SURF.Proyecto DPI2015-65186-R European Commission under grant agreement BES-2016-078237. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Aspectos fenomenológicos del son guatemalteco tradicional Phenomenological aspects of the traditional Guatemalan son

Desde un enfoque fenomenológico se presenta aquí­ una pequeña muestra de la vasta y poco difundida riqueza de recursos musicales constructivos que exponen los sones guatemaltecos tradicionales; es decir aquellos transmitidos oralmente por generaciones pasadas, principalmente en ambientes familiares, que en algunos casos, poseen una historia que arranca desde tiempos prehispánicos y llega hasta la actualidad. Dicha riqueza estriba en la diversa magnitud y continua reelaboración de elementos de raí­z local (indí­gena) y externa (europea, africana y árabe) que en ellos participan. Algunos de estos elementos son ejemplificados, con transcripciones de fragmentos de piezas del género que muestran diversos aspectos tí­mbricos, rí­tmicos, armónicos, melódicos y texturales que los caracterizan

Transfer learning or design a custom CNN for tactile object recognition

International Workshop on Robotac: New Progress in Tactile Perception and Learning in RoboticsNovel tactile sensors allow treating pressure lectures as standard images due to its highresolution. Therefore, computer vision algorithms such as Convolutional Neural Networks (CNNs) can be used to identify objects in contact. In this work, a high-resolution tactile sensor has been attached to a robotic end-effector to identify objects in contact. Moreover, two CNNs-based approaches have been tested in an experiment of classification of pressure images. These methods include a transfer learning approach using a pre-trained CNN on an RGB images dataset and a custom-made CNN trained from scratch with tactile information. A comparative study of performance between them has been carried out.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Spanish project DPI2015-65186-R, the European Commission under grant agreement BES-2016-078237, the educational project PIE-118 of the University of Malag

Symmetry reductions for thin film type equations

The lubrication equation ut = (u nuxxx)x plays an important role in the study of the interface movements. In this work we analyze the generalizations of the above equation given by ut = (u nuxxx)x − kumux. By using Lie classical method the corresponding reductions are performed and some solutions are characterized

Generalized Camassa-Holm Equations: Symmetry, Conservation Laws and Regular Pulse and Front Solutions

In this paper, we consider a member of an integrable family of generalized Camassa-Holm (GCH) equations. We make an analysis of the point Lie symmetries of these equations by using the Lie method of infinitesimals. We derive nonclassical symmetries and we find new symmetries via the nonclassical method, which cannot be obtained by Lie symmetry method. We employ the multiplier method to construct conservation laws for this family of GCH equations. Using the conservation laws of the underlying equation, double reduction is also constructed. Finally, we investigate traveling waves of the GCH equations. We derive convergent series solutions both for the homoclinic and heteroclinic orbits of the traveling-wave equations, which correspond to pulse and front solutions of the original GCH equations, respectively