Collections in this community

Recent Submissions

  • Rotating magnetic shallow water waves and instabilities in a sphere 

    Márquez-Artavia, Xiomara; Jones, Christopher; Tobias, Steven (University of Leeds, United Kingdom, 2017)
    Waves in a thin layer on a rotating sphere are studied. The effect of a toroidal magnetic field is considered, using the shallow water ideal MHD equations. The work is motivated by suggestions that there is a stably ...
  • Historical Tsunamis at the Costa Rican Caribbean Coast 

    Chacon-Barrantes, Silvia; Murillo Gutiérrez, Anthony; Rivera Cerdas, Fabio (Universidad de Costa Rica, 2021-04-22)
    Aún cuando los tsunamis son poco frecuentes en el Caribe de Costa Rica, pueden llegar a ser destructivos. En Costa Rica existe la creencia errónea de que no hemos tenido tsunamis. Sin embargo, los autores encontraron ...
  • Descifrando el clima espacial: ciclos solares y ondas magnéticas de Rossby 

    Márquez-Artavia, Xiomara (Revista Uniciencia, Universidad Nacional, 2019-07)
    El objetivo de esta investigación es explorar si existe una relación entre las ondas magnéticas de Rossby rápidas o lentas y ciertas observaciones de la actividad solar de largo y muy largo plazo (meses, años, décadas…). ...
  • Global Magnetohydrodynamic Waves in Stably Stratified Rotating Layers 

    Márquez-Artavia, Xiomara (University of Leeds UK, 2017-08-23)
    The 2D shallow water approximation in magnetohydrodynamics is solved, numerically and analytically, for a perfectly conducting fluid on a rotating sphere with a basic state for the toroidal magnetic field: Bφ = B0 sin ...
  • Decadal Characterization of Indo-Pacific Ocean Subsurface Temperature Modes in SODA Reanalysis 

    Vargas-Hernández , José Mauro ; Wijffels, Susan; Meyers, Gary; Belo Couto, André; Holbrook, Neil (American Meteorological Society, 2015-04-29)
    Studies of decadal-to-multidecadal ocean subsurface temperature variability are fundamental to improving the understanding of low-frequency climate signals. The present study uses the Simple Ocean Data Assimilation (SODA) ...
  • A combined first-principles computational/experimental study on LiNi 0.66Co 0.17Mn 0.17O 2 as a potential layered cathode material 

    Saavedra-Arias, José; Venkateswara Rao, Chitturi; Shojan, Jifi; Manivannan, Ayyakkannu; Torres, Lorraine; Ishikawa, Yasuyuki; Katiyar, Ram (Elsevier, 2012-08-01)
    First-principles calculations are used to analyze the phase stability, formation energy, and Li intercalation potential for a series of layered cathode materials. The calculations show LiNi 0.66Co 0.17Mn 0.17O 2 as a ...
  • Connecting bioloy, optics and nanomechanical properties in micro-wasps 

    Mora Castro, Rebeca; Hernández-Jiménez, Marcela; Sáenz-Arce, Giovanni; Porras-Peñaranda, Juan; Hanson-Snortum, Paul; Avendaño Soto, Esteban Damian (Springer Nature, 2020-01-29)
    Coloration in insects provides a fruitful opportunity for interdisciplinary research involving both physics and biology, and for a better understanding of the design principles of biological structures. In this research ...
  • Guía Rápida para Elaborar Planes de Preparativos y Respuesta ante Emergencias por Tsunamis para Hoteles y Cabinas 

    Chacón Barrantes, Silvia (Comisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE), 2020-05)
    Este documento se enfoca en tsunamis, buscar facilitar a hoteles y cabinas la aplicación de la Norma de Planes de Preparativos y Respuesta ante Emergencias para Centros Laborales o de Ocupación Pública. Requisitos. ...
  • β- decay of 65Mn to 65Fe 

    Olaizola, Bruno; Fraille, L.M.; Mach, Henryk; Aprahamian, Ani; Briz, Jose Antonio; Cal-González, J.; Ghita, Dan Gabriel; Köester, U.; Kurcewicz, Wiktor; Lesher, S.R.; Pauwels, Dieter; Picado, Esteban; Poves, Alfredo; Radulov, D.; Simpson, G.S.; Udías, J.M. (American Physical Society, 2013-10-07)
    The low-energy structure of 65Fe has been studied by means of γ and fast-timing spectroscopy at the ISOLDE facility, CERN. A level scheme of 65Fe populated following the β-decay of 65Mn was established for the first time. ...
  • The rock coast of South and Central America 

    Blanco-Chao, Ramon; Pedoja, Kevin; Witt, César; martinod, joseph; Husson, Laurent; Regard, Vincent; Audin, Laurence; Nexer, Maëlle; delcaillau, bernard; Saillard, Marianne; Melnick, Daniel; Dumont, Jean Francois; Santana, Essy; Navarrete, Edison; Martillo, Carlos; PAPPALARDO, MARTA; Ayala, Luis; Araya, J.F.; Feal-Pérez, A.; Correa, D.; Arozarena-Llopis, Isabel (Geological Society Memoirs 2014, 2014-07)
    The great variety of climatic conditions, tidal ranges and wave regimes of South and Central America act on a complex geology and tectonic framework. Many of the rock and cliffed coasts of South America are strongly ...
  • A combined experimental and theoretical study of gas sorption on nanoporous silver triazolato metal-organic frameworks 

    Yang, Guang; Santana, Juan A; Rivera Ramos, Milton E.; García - Ricard, Omar; Saavedra-Arias, José; Ishikawa, Yasuyuki; Hernandez-Maldonado, Arturo; Raptis, Raphael G. (2014-01-01)
    A new silver-triazolate metal-organic framework (MOF), {Ag 3[Ag5(μ3-3,5-tBu 2tz)6](BF4)2}n (2), has been prepared and structurally characterized. The CO2 sorption properties of this new MOF and previously reported isostructural ...
  • Evaluating SODA for Indo-Pacific Ocean decadal climate variability studies 

    Vargas-Hernández , José Mauro ; Wijffels, Susan; Meyers, Gary; Holbrook, Neil (Journal of Geophysical Research: Oceans, 2014-10-31)
    Estimates of changes in upper ocean temperature, heat content, and sea level are dependent on the coverage of subsurface observations in space and time. Historically, these data are sparse, which has limited our understanding ...
  • Análisis de Registros de Tsunamis anteriores a 1969 observados en la estación de Puntarenas 

    Chacon-Barrantes, Silvia; Murillo Gutiérrez, Anthony; Rivera Cerdas, Fabio; Vega Vega, José (IV Congreso Nacional de Gestión del Riesgo y Adaptación al Cambio Climático, Heredia, 10 y 11 de octubre 2018, 2018)
    Los mareógrafos de Puntarenas, Quepos y Limón fueron instalados en la década de 1940 como una colaboración entre el Instituto Geográfico Nacional (IGN) y la Agencia Nacional Atmosférica y Oceanográfica de los Estados Unidos ...
  • Nations work together to size up Caribbean tsunami hazards 

    Lopez-Venegas, Alberto; Chacon-Barrantes, Silvia; Zamora, Natalia; Macías - Sánchez, Jorge (AGU.ORG, 2018-10-04)
    El Caribe es conocido por sus playas tropicales y centros de surf, pero no está exento de terremotos y tsunamis. Durante los últimos 500 años, esta región puede haber estado expuesta a aproximadamente 100 tsunamis, de los ...
  • Manual de formación en gestión comunitaria del riesgo por tsunami 

    Rojas Herrera, Silvia; Saénz Gutiérrez, Gabriela; Alfaro Boza, Bernardita; Carrillo Vargas, Catalina; Ryan Valerio, Lindsay; Chacon-Barrantes, Silvia; Rivera Cerdas, Fabio; Araya Araya, Ramón; Castillo Barquero, Róger (Universidad Nacional, Costa Rica, 2020)
    The purpose of the Training Manual on Community Tsunami Risk Management is to be a guide with tools to transmit scientific information related to this type of natural phenomena and to build new knowledge from the dialogue ...
  • Polycrystalline indium films in the percolation threshold regime: Time correlation between electric conduction and optical properties with film morphology 

    Clark, Neville; Vargas, William E.; Azofeifa, Daniel E.; Sáenz-Arce, Giovanni; Solís, Hugo; Ramírez Hidalgo, Gustavo (IOP Publishing Ltd., 2014-02-21)
    Polycrystalline indium films have been deposited at room temperature by electron beam evaporation on amorphous quartz substrates. Once deposited, electrical resistance and specular reflection of the films, for wavelengths ...
  • Multiparticle emission in the decay of Ar 31 

    Koldste, G.T.; Blank, B.; Borge, M.J.G.; Briz, J.A.; Carmona-Gallardo, M.; Fraile, L.M.; Fynbo, H.O.U.; Giovinazzo, J.; Grann, B.D.; Johansen, J.G.; Jokinen, A.; Jonson, B.; Kurturkian-Nieto, T.; Kusk, J.H.; Nilsson, T.; Perea, A.; Pesudo, V.; Picado, Esteban; Riisager, K.; Saastamoinen, A.; Tengblad, O.; Thomas, J.C.; Van del Walle, J. (American Physical Society, 2014-06-25)
    A multihit capacity setup was used to study the decay of the dripline nucleus 31Ar, produced at the ISOLDE facility at CERN. A spectroscopic analysis of the β-delayed three-proton decay of 31Ar is presented for the first ...
  • Gestionando el riesgo por tsunami desde las comunidades 

    Rivera Cerdas, Fabio; Chacon-Barrantes, Silvia (IV Congreso Nacional de Gestión del Riesgo y Adaptación al Cambio Climático, Heredia 10 y 11 de octubre 2018, 2018)
    En caso de que la Comisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE) declare alerta por tsunami, las personas que se encuentran zonas de riesgo deben evacuar antes de la llegada de la primera ola. ...
  • Sizeable beta-strength in 31Ar (β3p) decay 

    Koldste, G.T.; Blank, B.; Borge, M.J.G.; Briz, J.A.; Carmona-Gallardo, M.; Fraile, L.M.; Fynbo, H.O.U.; Giovinazzo, J.; Johansen, J.G.; Thomas, J.C.; Jokinen, A.; Jonson, B.; Kurturkian-Nieto, T.; Nilsson, T.; Perea, A.; Pesudo, V.; Picado, Esteban; Riisager, K.; Saastamoinen, A.; Tengblad, O.; Van del Walle, J. (Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2014-10-07)
    We present for the first time precise spectroscopic information on the recently discovered decay mode β-delayed 3p-emission. The detection of the 3p events gives an increased sensitivity to the high energy part of the ...
  • Hidrography and river plumes in Golfo Dulce, South Pacific of Costa Rica 

    Rincón - Alejos, Fernando; Ballestero Sakson, Daniel (Universidad de Costa Rica, 2015-07)
    Oceanographic variables at 33 stations distributed in Golfo Dulce, Costa Rica, during the dry and rainy seasons between 2009 and 2010, were analyzed with CTD profiles, where salinity, temperature, sigma-T and currents were ...

View more