978 research outputs found
Designing a minimal reactive goalie for the RoboCup SPL
This paper presents the basic design and implementation
of a goalkeeper made according to the regulations
of the two-legged Standard Platform League of the RoboCup
Federation. The paper describes the perceptive schemas created
using the architecture of the TeamChaos-URJC team as well as
the action schemes designed to create a minimal reactive goalie.
This player was tested in the 2009 German Open international
competition. The results obtained there are analyzed and the
future works derived from that analysis are presente
Grid site testing for ATLAS with Hammer Cloud
With the exponential growth of LHC (Large Hadron Collider) data in 2012, distributed computing has become the established way to analyze collider data. The ATLAS grid infrastructure includes more than 130 sites worldwide, ranging from large national computing centers to smaller university clusters. HammerCloud was previously introduced with the goals of enabling virtual organisations (VO) and site-administrators to run validation tests of the site and software infrastructure in an automated or on-demand manner. The HammerCloud infrastructure has been constantly improved to support the addition of new test workflows. These new workflows comprise e.g. tests of the ATLAS nightly build system, ATLAS Monte Carlo production system, XRootD federation (FAX) and new site stress test workflows. We report on the development, optimization and results of the various components in the HammerCloud framework
RoboSTEAM Project Systematic Mapping: Challenge Based Learning and Robotics
STEAM Education is nowadays a key element for
our current digital society. Integrating STEAM and developing
competences such as Computational Thinking is highly
demanded by the industry and higher education institutions. In
order to do so new methodological approaches are required.
RoboSTEAM project is an Erasmus+ project defined to address
these topics by using of physical devices and robotics employing
Challenge Based Learning methodology. One of the first steps
in the project development is the definition of current landscape
in the research field. Which means to carry out a literature
mapping that considers previous applications of Challenge
Based Learning in STEAM education and use of robots and
physical devices to do so. This paper shows the mapping review
process and the main results obtained. The mapping analyze 242
candidate works from the most relevant bibliographic sources
and selected 54. Form them it was possible to see that there are
not many initiatives on STEM Education related to Challenge
base learning and the most of them are specially focused on the
application of specific tools and in the development of concrete
competences
Origin and distribution of Rare Earth Elements (REEs) in the water and sediments of El Hito Lake (Cuenca, Central Spain)
Determination of Rare Earth Elements (REEs) in the waters and sediments of El Hito Lake and its drainage basin was carried out. Distribution maps for REEs concentrations show increasing values in the lake sediments from the center to the eastern edge reaching 166.5 mg/kg. In the drainage basin, higher values were observed with a maximum of 350.9 mg/kg in the southern part. Concentrations in the water were considerably lower with a maximum value of 1.3 µg/L. Ce, La and Nd were the most abundant elements. When normalized REE concentrations against NASC (North American Shale Composite), a positive anomaly of Eu in the water and of Nd in the sediments (lake and basin) was observed. The (La/Gd)NASC and (La/Yb)NASC ratios determined the predominance of light REE (LREE) over medium (MREE) and heavy REE (HREE)Se llevó a cabo el estudio de Tierras Raras (REEs) del agua y los sedimentos de la Laguna de El Hito así como de su cuenca de recepción. Los mapas de distribución de las concentraciones de REE en los sedimentos de la laguna mostraron valores crecientes desde el centro hacia el margen este alcanzando 166,5 mg/kg. En la cuenca se midieron valores más elevados llegando hasta 350,9 mg/kg en la mitad sur. Los valores en el agua fueron notablemente inferiores, con un máximo de 1,3 µg/L. El elemento más abundante fue el Ce seguido del Nd. Se normalizaron las concentraciones de REEs frente a las del NASC (North American Shale Composite), observándose una anomalía positiva de Eu en el agua, así como de Nd en los sedimentos (laguna y cuenca).
Mediante los índices (La/Gd)NASC y (La/Yb)NASC se determinó el predominio de las REEs ligeras (LREEs) frente a las medias (MREE) y pesadas (HREE
Deep Learning Architect: Classification for Architectural Design through the Eye of Artificial Intelligence
This paper applies state-of-the-art techniques in deep learning and computer
vision to measure visual similarities between architectural designs by
different architects. Using a dataset consisting of web scraped images and an
original collection of images of architectural works, we first train a deep
convolutional neural network (DCNN) model capable of achieving 73% accuracy in
classifying works belonging to 34 different architects. Through examining the
weights in the trained DCNN model, we are able to quantitatively measure the
visual similarities between architects that are implicitly learned by our
model. Using this measure, we cluster architects that are identified to be
similar and compare our findings to conventional classification made by
architectural historians and theorists. Our clustering of architectural designs
remarkably corroborates conventional views in architectural history, and the
learned architectural features also coheres with the traditional understanding
of architectural designs.Comment: 22 pages, 5 figures, 4 table
Distribución temporal del tamaño de los molariformes de Ursus spelaeus Ros.-Hein.ibérico
[Abstract] This paper deals with a metrical comparison of cheek-teeth length of Ursus spelaeus Ros.-Hein.Iberian population representatives
Organic matter accumulation during the Holocene in the Guadalquivir marshlands (SW Spain)
The distribution of biomarker compounds and magnetic susceptibility observed in the sediment from a 20 m core drilled in the
marshlands of the estuarine region of the Guadalquivir River (southwest coast of Spain) has allowed us to reconstruct the
palaeoenvironmental evolution of this area during the Holocene. Several organic compounds (n-alkanes, ra-ketones, n-alkanols,
n-alkanoic acids and organic sulphur), as well as different biomarker ratios, have been used to show changing environmental
conditions through time. These geochemical proxies suggest good preservation of the organic matter, although some diagenesis
has occurred to particular organic compounds, especially the n-alkanoic acids. Our data indicate a major allochthonous supply of
terrestrial plants, with less influence from aquatic plants or algae through the core. There are markedly different palaeoenvironmental
conditions between the uppermost 5 m (last 6ka cal. B.P.) and the rest of the core. From 5 m (ca 6ka cal. B.P.) to 19 m
(ca 8ka cal. B.P.) depth the palaeoenvironmental conditions were almost constant. Based on organic sulphur content and
n-alkane content logs, anoxic conditions prevailed from 8 to 6ka cal. B.P., while oxic conditions with enhanced convection of
water (prevalence of fluvial input), and consequently a greater organic matter supply, predominated in the upper 5 m of the core.
Similarly, little variation in the magnetic susceptibility profile below 5 m indicates stable environmental conditions, while in the
upper 5 m conditions shifted to one with elevated water input and clastic sediment supply. This is linked to palaeofloral
alterations in the Guadiamar/Guadalquivir drainage basins and/or anthropogenic effects. We propose that from ca 8 to 6 ka cal.
B.P. a stable landscape physiognomy in the surroundings of the estuarine area of the Guadalquivir River, with a predominance of
pines and grassland. However, over the last 6ka cal. B.P. a variation in the terrestrial plant biomarker compounds suggests an
alternation of relatively dry and humid phases and/or the impact of human populations on altering the vegetation community
have occurred
Identificacion of differentially expressed proteins in acute coronary syndromes
Comunicaciones a congreso
Encuesta sobre los Usos Guías de Clase como aproximación a los REA. Una aproximación a través de la investigacción-acción
[ES]En este artículo se presentan los resultados de una encuesta sobre prácticas docentes y conocimiento de Recursos Educativos Abiertos (REA). La encuesta se formula en base a la consideración de la activad docente en base a fases de investigación acción. En este sentido se pregunta a los docentes sobre sus prácticas en la preparación de guías de clases antes de las mismas, la documentación con evidencias de lo que pasa durante las clases y los cambios que se producen en las mismas, y la reflexión posterior una vez concluyen las clases. También se incluyen preguntas sobre el conocimiento y el posicionamiento ante los REA La encuesta se dirigió a profesorado de primaria y secundaria de Galicia y del Norte de Portugal. En total se obtuvieron 602 respuestas de las que se realizan una serie de reflexiones de cara al desarrollo de los REA
An investigation into CLIL-related sections of EFL coursebooks : issues of CLIL inclusion in the publishing market
The current ELT global coursebook market has embraced CLIL as a weak form of bilingual education and an innovative component to include in General English coursebooks for EFL contexts. In this paper I investigate how CLIL is included in ELT coursebooks aimed at
teenaged learners, available to teachers in Argentina. My study is based on the content analysis of four series which include a section advertised as CLIL-oriented. Results suggest that such sections are characterised by (1) little correlation between featured subject specific content and school curricula in L1, (2) oversimplification of contents, and (3) dominance of reading skills development and lower-order thinking tasks. Through this study, I argue that
CLIL components become superficial supplements rather than a meaningful attempt to promote weak forms of bilingual education
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