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Browsing Articles by Author "Universitat de Vic. Escola Politècnica Superior"

Browsing Articles by Author "Universitat de Vic. Escola Politècnica Superior"

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  • Central configurations of nested regular polyhedra for the spatial 2n–body problem
    Corbera Subirana, Montserrat; Llibre, Jaume (ElsevierWorld scientific Publishing, 2008)
    We consider 2n masses located at the vertices of two nested regular polyhedra with the same number of vertices. Assuming that the masses in each polyhedron are equal, we prove that for each ratio of the masses of the ...
  • Central configurations of nested rotated regular tetrahedra
    Corbera Subirana, Montserrat; Llibre, Jaume (Elsevier, 2009)
    In this paper we prove that there are only two different classes of central configura- tions with convenient masses located at the vertices of two nested regular tetrahedra: either when one of the tetrahedra is a homothecy ...
  • Central configurations of the 4-body problem with masses m1 ¼ m2 > m3 ¼ m4 ¼ m > 0 and m small
    Corbera Subirana, Montserrat; Llibre, Jaume (Elsevier, 2014)
    In this paper we give a complete description of the families of central configurations of the planar 4-body problem with two pairs of equals masses and two equal masses sufficiently small. In particular, we give an ...
  • Central configurations of three nested regular polyhedra for the spatial 3n–body problem
    Corbera Subirana, Montserrat; Llibre, Jaume (Elsevier, 2009)
    Three regular polyhedra are called nested if they have the same number of vertices n, the same center and the positions of the vertices of the inner polyhedron ri, the ones of the medium polyhedron Ri and the ones of the ...
  • Chromatin-Bound IkBa Regulates a Subset of Polycomb Target Genes in Differentiation and Cancer
    Mulero, María Carmen; Ferres-Marco, Dolors; Islam, Abul; Margalef, Pol; Pecoraro, Matteo; Toll, Agustí; Drechsel, Nils; Charneco, Cristina; Davies, Shelly; Bellora, Nicolás; Gallardo, Fernando; López-Arribillaga, Erika; Asensio-Juan, Elena; Rodilla, Verónica; González, Jessica; Iglesias, Mar; Shih, Vincent; Albà, M. Mar; Di Croce, Luciano; Hoffmann, Alexander; Miyamoto, Shigeki; Villà-Freixa, Jordi; López Bigas, Núria; Keyes, William M.; Domínguez, María; Bigas, Anna; Espinosa, Lluís (Elsevier, 2013)
    IkB proteins are the primary inhibitors of NF-kB. Here, we demonstrate that sumoylated and phosphorylated IkBa accumulates in the nucleus of keratinocytes and interacts with histones H2A and H4 at the regulatory region ...
  • Climate change impacts on lakes: an integrated ecological perspective based on a multi-faceted approach, with special focus on shallow lakes
    Jeppesen, Erik; Meerhoff, Mariana; Davidson, Thomas A.; Trolle, Dennis; SondergaarD, Martin; Lauridsen, Torben L.; Beklioglu, Meryem; Brucet Balmaña, Sandra; Volta, Pietro; González-Bergonzoni, Iván; Nielsen, Anders (PagePress, 2014)
    Freshwater ecosystems and their biodiversity are presently seriously threatened by global development and population growth, leading to increases in nutrient inputs and intensification of eutrophication-induced problems ...
  • Color and dichroism of silver-stained glasses
    Molina, Gloria; Murcia, S.; Molera Marimon, Judit; Roldan, C.; Crespo, Diana Cristina; Pradell, Trinitat (Springer, 2013)
    Yellow decorations in glasses have been produced since the beginning of the fourteenth century by incorporating metallic silver nanoparticles into the glass (from a few to some tens of nanometers). The optical response ...
  • Color and Golden Shine of Silver Islamic Luster
    Gutiérrez, Patricia Carolina; Pradell, Trinitat; Molera Marimon, Judit; Smith, Andrew D.; Climent-Font, Aurelio; Tite, Michael S. (American Ceramic Society, 2010)
    Golden-like luster decorations on glazed ceramics from early Islamic times (9–12th centuries AD) consist of a nanocomposite submicrometric layer made of silver metal nanoparticles. The color and golden-like reflectivity ...
  • Composition, nanostructure, and optical properties of silver and silver-copper lusters
    Pradell, Trinitat; Pavlov, Radostin S.; Gutiérrez, Patricia Carolina; Climent-Font, Aurelio; Molera Marimon, Judit (American Institute of Physics, 2012)
    Lusters are composite thin layers of coinage metal nanoparticles in glass displaying peculiar optical properties and obtained by a process involving ionic exchange, diffusion, and crystallization. In particular, the ...
  • Defining ecologically relevant water quality targets for lakes in Europe
    Poikane, Sandra; Portielje, Rob; Van der Berg, Marcel; Phillips, Geoff; Brucet Balmaña, Sandra; Carvalho, Laurence; Mischke, Ute; Ott, Ingmar; Soskza, Hanna; Van Wichelen, Jeroen (Wiley, 2014)
    1. The implementation of the Water Framework Directive requires EU member states to establish and harmonize ecological status class boundaries for biological quality elements. In this paper, we describe an approach for ...
  • Detection of severe obstructive sleep apnea through voice analysis
    Solé-Casals, Jordi; Munteanu, C.; Martin, O.C.; Barbé, F.; Queipo, C.; Amilibia, J.; Durán-Cantolla, J. (Elsevier, 2014)
    tThis paper deals with the potential and limitations of using voice and speech processing to detect Obstruc-tive Sleep Apnea (OSA). An extensive body of voice features has been extracted from patients whopresent various ...
  • Diagnosis of Alzheimer’s Disease from EEG by Means of Synchrony Measures in Optimized Frequency Bands
    Gallego Jutglà, Esteve; Elgendi, Mohamed; Vialatte, François B.; Solé-Casals, Jordi; Cichocki, Andrej; Jaeseung, Jeonga; Dauwels, Justin; Latchoumane, Charles-François V. (Institute of Electrical and Electronic Engineers, IEEE, 2012)
    Several clinical studies have reported that EEG synchrony is affected by Alzheimer’s disease (AD). In this paper a frequency band analysis of AD EEG signals is presented, with the aim of improving the diagnosis of AD using ...
  • Do protein–protein interaction databases identify moonlighting proteins?
    Gómez Moruno, Antonio; Hernández, Sergio; Amela, Isaac; Piñol, Jaume; Cedano, Juan; Querol, Enrique (Royal Society of Chemistry, 2011)
    One of the most striking results of the human (and mammalian) genomes is the low number of protein-coding genes. To-date, the main molecular mechanism to increase the number of different protein isoforms and functions ...
  • Double-Antiprism Central Configurations of the 3n-Body Problem
    Corbera Subirana, Montserrat; Llibre, Jaume (Springer Verlag, 2013)
    Abstract In this paper we study numerically a new type of central configurations of the 3n-body problem with equal masses which consist of three n-gons contained in three planes z = 0 and z = ±β = 0. The n-gon on z = 0 ...
  • Early Islamic lustre from Egypt, Syria and Iran (10th to 13th century AD)
    Pradell, Trinitat; Molera Marimon, Judit; Smith, Andrew D.; Tite, Michael S. (Elsevier, 2008)
    This paper presents a study of a representative selection of lustre ceramics dating from the last quarter of the 10th century AD to the second half of the 13th century AD from Egypt, Syria and Iran. The study concentrates ...
  • Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity
    Jeppesen, Erik; Brucet Balmaña, Sandra; Naselli-Flores, Luigi; Papastergiadou, Eva; Stefanidis, Kostas; Noges, Tiina; Noges, Peeter; Attayde, Jose Luiz; Zohary, Tamar; Coppens, Jan; Bucak, Tuba; Menezes, Rosemberg F.; Sousa Freitas, Francisco Rafael; Kernan, Martin; SondergaarD, Martin; Beklioglu, Meryem (Springer, 2015)
    According to the Intergovernmental Panel on Climate Change report released in September 2014, unprecedented changes in temperature and precipitation patterns have been recorded globally in recent decades and further ...
  • EEG windowed statistical wavelet scoring for evaluation and discrimination of muscular artifacts
    Vialatte, François B.; Solé-Casals, Jordi; Cichocki, Andrej (Institute of Physics, 2008)
    EEG recordings are usually corrupted by spurious extra-cerebral artifacts, which should be rejected or cleaned up by the practitioner. Since manual screening of human EEGs is inherently error prone and might induce experimental ...
  • An efficient algorithm to perform multiple testing in epistasis screening
    Van Lishout, François; Mahachie John, Jestinah M.; Gusareva, Elena S.; Urrea Gales, Víctor; Cleynen, Isabelle; Théâtre, Emilie; Charloteaux, Benoït; Calle, M. Luz; Wehenkel, Louis; Van Steen, Kristel (Biomed Central, 2013)
    Background: Research in epistasis or gene-gene interaction detection for human complex traits has grown over the last few years. It has been marked by promising methodological developments, improved translation efforts ...
  • Equilibrium points and central configurations for the Lennard-Jones 2-and 3-body problems
    Corbera Subirana, Montserrat; Llibre, Jaume; Pérez-Chavela, Ernesto (Springer Verlag, 2004)
    Abstract. In this paper we study the relative equilibria and their stability for a system of three point particles moving under the action of a Lennard{Jones potential. A central con guration is a special position of the ...
  • Estrategias de cooperación internacional para el fortalecimiento de la soberanía alimentaria: aprendizajes desde las prácticas de las organizaciones en transición
    Guareschi, Mariana; Gallar Hernández, David; Rivera Ferre, Marta Guadalupe (Ministerio de Agricultura, Alimentación y Medio Ambiente, 2014)

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