Now showing items 1844-1863 of 2043

    • The interaction apparatus of Asteridiella callista (Meliolaceae, Ascomycota) 

      Rodríguez Justavino, Délfida; Carranza Velásquez, Julieta; Morales Sánchez, Carlos; Rincón, Rafael; Oberwinkler, Franz; Bauer, Robert (2014)
      We document here for the first time ultrastructural details of the cellular interaction of Asteridiella callista and its host Stachytarpheta mutabilis var. violacea from Costa Rica. A. callista attaches to the host with ...
    • The Intra-Americas Sea Low-level Jet 

      Amador Astúa, Jorge Alberto (2008-12-05)
      A relevant climate feature of the Intra‐Americas Sea (IAS) is the low‐level jet (IALLJ) dominating the IAS circulation, both in summer and winter; and yet it is practically unknown with regard to its nature, structure, ...
    • The Kirillov picture for the Wigner particle 

      Gracia Bondía, José M.; Lizzi, Fedele; Várilly Boyle, Joseph C.; Vitale, Patrizia (2018-06)
      We discuss the Kirillov method for massless Wigner particles, usually (mis)named "continuous spin" or "infinite spin" particles. These appear in Wigner's classification of the unitary representations of the Poincaré group, ...
    • The larva of Perissolestes remotus (Williamson & Williamson, 1924) (Zygoptera: Perilestidae) 

      Román Heracleo, Jareth; Springer Springer, Monika; Ramírez Ulate, Luis Alonso (2018)
      The larva of Perissolestes remotus is described for the first time based on Costa Rican specimens collected in forested streams with abundant organic matter. It is characterized by a slender, elongated body, with lateral ...
    • The last step of the volcanic unrest in Turrialba volcano: a new stage of magmatic eruptions 

      González Ilama, Gino Steven; Mora Amador, Raúl Alberto; Ramírez Umaña, Carlos José; Lucchi, Federico; Rouwet, Dmitri; Forni, Francesca; Alpízar Segura, Yemerith (2015)
      In 1864-1866, Turrialba volcano had a strombolian eruption with some phases of phreatic and phreatomagmatic activity, that covered the Central Valley of Costa Rica with a variable thickness of ash. During this eruption, ...
    • The management of Typha domingensis (Typhaceae) affects macroinvertebrate assemblages in the Palo Verde Wetland, Guanacaste, Costa Rica 

      Trama, Florencia A.; Rizo Patron Viale, Federico L. S.; Kumar, Anjali S.; Stynoski, Jennifer Lynn; McCoy Colton, Michael B.; Springer Springer, Monika (2017)
      The Palo Verde wetland, one of the most important places for aquatic organisms in Costa Rica, is currently recovering from an invasive expansion of Typha domingensis (cattail). A monitoring program was designed to understand ...
    • The mechanical career of Councillor Orffyreus, confidence man 

      Jenkins Villalobos, Alejandro (2013-05)
      In the early 18th century, J. E. E. Bessler, known as Orffyreus, constructed several wheels that he claimed could keep turning forever, powered only by gravity. He never revealed the details of his invention, but he ...
    • The Midsummer Drought over Mexico and Central America 

      Amador Astúa, Jorge Alberto; Magaña Rueda, Víctor Orlando; Medina, Socorro (1998-06)
      The annual cycle of precipitation over the southern part of Mexico and Central America exhibits a bimodal distribution with maxima during June and September–October and a relative minimum during July and August, known as ...
    • The MILAN campaign: Studying diel light effects on the air-sea interface 

      Stolle, Christian; Ribas Ribas, Mariana; Badewien, Thomas H.; Barnes, Jonathan; Carpenter, Lucy J.; Chance, Rosie; Damgaard, Lars Riis; Durán Quesada, Ana María; Engel, Anja; Frka, Sanja; Galgani, Luisa; Gašparović, Blaženka; Gerriets, Michaela; Mustaffa, Nur Ili Hamizah; Herrmann, Hartmut; Kallajoki, Liisa; Pereira, Ryan; Radach, Franziska; Revsbech, Niels Peter; Rickard, Philippa; Saint, Adam; Salter, Matthew; Striebel, Maren; Triesch, Nadja; Uher, Guenther; Upstill Goddard, Robert C.; van Pinxteren, Manuela; Zäncker, Birthe; Zieger, Paul; Wurl, Oliver (2019)
      The sea-surface microlayer (SML) at the air-sea interface is < 1 mm deep but it is physically, chemically and biologically distinct from the underlying water and the atmosphere above. Wind-driven turbulence and solar ...
    • The National Seismological Network of Costa Rica (RSN): An Overview and Recent Developments 

      Linkimer Abarca, Lepolt; Arroyo Hidalgo, Ivonne Gabriela; Alvarado Induni, Guillermo E.; Arroyo Solórzano, Mario; Bakkar Hindeleh, Henriette (2018-03)
      The National Seismological Network of Costa Rica (RSN) is a joint effort between the University of Costa Rica (UCR) and the Costa Rican Institute of Electricity (ICE). In this article, we briefly describe its history, ...
    • The necessity for tailoring seasonal climate forecast in Central America for urban and coastal areas, including physics and human dimensions 

      Alfaro Martínez, Eric J. (Memories of the WCRP Conference for Latin America and the Caribbean: Developing, linking, and applying climate knowledge, 2014-03)
      Recent assessment analyses in Central America showed that trends in the annual number of impacts and disasters related with hydro-meteorology causes cannot be explained by climate trends only. That means that other ...
    • The neotropical damselfly genus Cora: new larval descriptions and a comparative analysis of larvae of known species (Odonata: Polythoridae) 

      Ramírez Ulate, Luis Alonso; Altamira Saavedra, Mariano; Gutiérrez Fonseca, Pablo E.; Springer Springer, Monika (2011)
      The final larval stadium of four species of Cora are described and compared with known species in the genus. Cora skinneri Calvert, 1907, C. semiopaca Selys, 1878 and C. lugubris Navás, 1934 are described and illustrated ...
    • The Neutrophil-Lymphocyte Ratio is an Independent Prognostic Factor for Overall Survival in Hispanic Patients with Gastric Adenocarcinoma 

      Ramos Esquivel, Allan Eduardo; Cordero García, Eugenia; Brenes Redondo, Dennis; Alpízar Alpízar, Warner (2018-07-13)
      Introduction High values of neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) are related with poor prognosis in patients with gastric cancer. However, this association has been rarely assessed in ...
    • The New Refugium botanicum 

      Pupulin, Franco; Strigari, Sylvia (2019)
      Après le numéro précédent, retour à une forme plus habituelle de cette rubrique dédiée aux artistes: Sylvia STRIGARI nous explique comment elle s’est initiée à l’illustration botanique, les techniques qu’elle utilise et, ...
    • The New Refugium Botanicum. Angraecum sesquipedale 

      Pupulin, Franco (2019)
      Angraecum sesquipedaleThouars, Histoire Particulière des Plantes Orchidées (Hist. Orchid.), pl. 66 & 67. 1822. TYPE: Madagascar, without specific locality, 1798, L. M. A.-A. du Petit-Thouars s.n.; lectotype, designated ...
    • The New Refugium Botanicum. Bulbophyllum medusae 

      Díaz Morales, Melissa; Pupulin, Franco (2019)
      Bulbophyllum medusae (Lindl.) Rchb.f, Annales Botanices Systematicae 6: 262. 1864. Cirrhopetalum medusae Lindl., Edwards’s Botanical Register 28: t.12. 1842. Phyllorchis medusae (Lindl.) Kuntze, Revisio Generum Plantarum ...
    • The New Refugium Botanicum. Cattleya dowiana 

      Pupulin, Franco (2019)
      Cattleya dowiana Bateman, Curtis Bot. Mag. 23(960) (ser.3 No. 265): sub t.5618. TYPE: Costa Rica. ”It was rediscovered in 1864 by M. Arce […] throughout some of the richest portions of Costa Rica. The plants which ...
    • The New Refugium Botanicum. Chaubardiella pacuarensis 

      Pupulin, Franco (2020)
      Chaubardiella pacuarensisJenny, Orchideen (Hamburg) 40:91. 1989. Type: Costa Rica. [Turrialba]: road by Río Pacuare near Turrialba, R. Jenny3 (holotype, G). Epiphytic, caespitose herbs to 25 cm tall. Roots thick, about ...
    • The New Refugium Botanicum. Cymbidium ensifolium f. misericors 

      Pupulin, Franco (2020)
      Cymbidium ensifolium (L.) Sw. subsp. ensifolium f. misericors (Hayata) Pupulin, stat. nov. Cymbidium misericors Hayata, Icon. Pl. Formosan. 4:79, f. 386. 1914. Cymbidium ensifolium (L.) Sw. var. misericors (Hayata) T. ...
    • The New Refugium Botanicum. Diplocaulobium lageniforme 

      Chinchilla Alvarado, Isler Fabián; Pupulin, Franco (2021)
      Diplocaulobium lageniforme (J.J.Sm.) Kraenzl., Pflanzenr. 340. 1910. Basionym: Dendrobium lageniforme J.J. Sm., Icon. Bogor. 1:86 t. 116 B. 1903. TYPE: [Western New Guinea. Papua:] Hab. Niederl. Neu Guinea, am Sungei ...