Listar Ciencias básicas por título
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La crisis sísmica de Bijagua de Upala (enero a marzo del 2002), Costa Rica
(2002)En el presente informe se analiza la información sismológica obtenida por los instrumentos sismográficos de la RSN, además de los datos de campo recopilados en la zona, tales como: efectos, daños, evidencias de fallamiento ... -
Critical Assessment of pH-Dependent Lipophilicity Profiles of Small Molecules: Which One Should We Use and In Which Cases?
(2023-10-03)Lipophilicity is a physicochemical property with wide relevance in drug design, computational biology, food, environmental and medicinal chemistry. Lipophilicity is commonly expressed as the partition coefficient for neutral ... -
Crossoglossa sotoana (Orchidaceae: Malaxideae), a new species honoring the late Mexican botanist, Miguel Ángel Soto Arenas
(2010)Crossoglossa sotoana, a new species from Costa Rica, is described and illustrated. It is compared with Ecuadorian C. barfodii, from which it differs by the strongly undulate margins of the leaves, the resupinate flowers, ... -
Crustacean fauna (Stomatopoda: Decapoda) associated with the deepwater fishery of Heterocarpus vicarius (Decapoda: Pandalidae) along the Pacific coast of Costa Rica
(2007)Commercial bottom trawling is a successful and commonly used method to catch marine shrimps. However, the shrimp fishing gears are poorly selective, and in addition to the target species they catch and retain large quantities ... -
Crustaceans (Decapoda & Stomatopoda) from Golfo Dulce (Pacific, Costa Rica) in the collection of the Museum of Zoology, University of Costa Rica
(2020-06)Introduction: The availability of recently updated lists of species from a particular area is an important first step to evaluate changes in species composition and abundance. Golfo Dulce is a fjord-like embayment with ... -
Crustal seismicity in the Andean Precordillera of Argentina using seismic broadband data
(2020)In this study, we analyze 100 crustal Precordilleran earthquakes recorded in 2008 and 2009 by 52 broadband seismic stations from the SIEMBRA and ESP, two temporary experiments deployed in the Pampean flat slab region, ... -
Crustáceos (Decapoda y Stomatopoda) del R.V. Skimmer y R.V. Victor Hensen en el Golfo de Nicoya, Pacífico, Costa Rica
(2019-01-31)El acceso a datos actualizados, sobre los nombres y distribución de las especies de crustáceos presentes en un área en particular, es un primer paso para evaluar cambios debidos a factores locales, regionales o globales, ... -
Crystal structure of (E)-2-(tert-butylamino)-4-(tertbutylimino)naphthalen-1(4H)-one
(2018)The title compound, C18H24N2O, is the first example of a naphthoquinone imine derivative isolated in the 4-imine/2-amine tautomeric form having bulky alkyl substituents at the N atoms. The molecular conformation is stabilized ... -
Crystal structure of 4-[(adamantan-1-yl)amino]naphthalene-1,2-dione
(2019)The title compound, C20H21NO2, an example of a stable 1,2-naphthoquinone, was determined by single-crystal X-ray diffraction analysis at 100 K. This structure illustrates steric buttressing of the adamantanyl group, forcing ... -
Crystal structures and biological activity of 1,1,4-triphenyl-substituted 1,3-enyne compounds
(2019)1,3-Enyne structural motifs are versatile building blocks in organic synthesis and occur widely in various natural products with many of them being highly active as cytotoxic macrolides and antitumour antibiotics. This ... -
Cuando la conservación no puede seguir el ritmo del desarrollo: Estado de salud de los ecosistemas coralinos del Pacífico Norte de Costa Rica
(2018)When conservation can keep up with development´s pace: Health status of coral ecosystems in the North Pacific of Costa Rica. Coral reefs are diverse and productive ecosystems, despite this, they are being threatened by ... -
Cuenca del Río Arenal: Análisis de los eventos La Niña 1988-89 y 1996
(2000)The precipitation patterns during La Niña events of 1988-89 and 1996 are analyzed for the Arenal River Basin. Pentad data are used to study the rainfall distribution for Naranjos Agrios (in the northwestern part of the ... -
Cuenca del Río Arenal: Análisis de los eventos Niño de los años 1992-93, 1994-95 y 1997-98
(2000)The precipitation patterns during El Niño events of 1992-93, 1994-95 and 1997-98 are analyzed for the Arenal River Basin. Pentad data are used to study the rainfall distribution for Naranjos Agrios (in the northwestern ... -
Cues guiding uloborid construction behavior support orb web monophyly
(2015)Behavior can provide useful traits for testing phylogenetic hypotheses, and some details of orb web construction behavior have been especially useful in characterizing higher-level groups in spiders. The cues used to guide ... -
Cultivation potential of Vanilla crop wild relatives in two contrasting land use systems
(2023)Vanilla is an important cash crop for many smallholder farmers around the tropics, and a highly appreciated spice used in a wide range of products. The crop species Vanilla planifolia is, however, facing a number of threats ... -
Curculionid beetles in aborted flower buds and immature fruits of Ceiba pentandra (Bombacaceae)
(2008)We determined the incidence of curculionid beetles of the genus Lonchophorus on aborted and not aborted flower buds and developing fruits of the tree Ceiba pentandra in southeastern Costa Rica. Beetle larvae were found in ... -
Current approaches to the isolation and structural elucidation of active compounds from natural products
(2018)The essence of medicinal plants, either as pure compounds or as standardized extracts, provides unlimited opportunities for new drug leads because of the unmatched availability of chemical diversity. Due to an increasing ... -
Cyrtidiorchis gerardii
(2017)Cyrtidiorchis Rauschert is a small genus of some fve species distributed from Colombia and Venezuela to Peru, phylogenetically related to Sauvetrea Szlach. and Mormolyca Fenzl (Maxillarinae). Tey are characterized by ... -
Cytological Identification of Chromosomal Rearrangements in Doritaenopsis and Phalaenopsis
(Journal of International Cooperation (Taiwan) 2(1): 1-11, 2007-09-01)This study investigated the impact of gross chromosomal rearrangements, specifically translocations and inversions, on the division of pollen mother cells in hybrids Dtps. Queen Beer, Dtps. Sinica Sunday, Dtps. Sweet ...