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Mostrando ítems 1394-1413 de 3121
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Fungi with history: Unveiling the mycobiota of historic documents of Costa Rica
(2022-06-12)Through nondestructive techniques, we studied the physicochemical characteristics and mycobiota of five key historic documents from Costa Rica, including the Independence Act of Costa Rica from 1821. We determined that for ... -
Further disentangling of a taxonomic puzzle: Maxillaria Ramosa, Ornithidium Pendulum, and a new species, O. Elianae (Orchidaceae)
(Harvard Papers in Botany, 2008)McIllmurray and Oakeley (2004) demonstrated that the name Maxillaria ramosa has been misapplied to Ornithidium pendulum since 1967, and possibly corresponds to M. cassapensis. We refer Ornithidium ochraceum, O. loefgrenii, ... -
Fusarium: more than a node or a foot-shaped basal cell
(2021)Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely ... -
Future Changes in Simulated Streamflow in Costa Rica from CMIP6 climate models
(2022-06-21)Statistically downscaled daily data from an ensemble of five General Circulation Models (GCMs) from the Climate Model Intercomparison Program 6 (CMIP6) will be used to determine changes (with respect to a baseline historical ... -
Future changes in the ecosystem services at Guanacaste Conservation Area, Costa Rica and their implications for the nearby communities of the Central American Dry Corridor
(2022)We present a valuation of the main ecosystem services of the Rincon de la Vieja National Park (RVNP), as part of the Guanacaste Conservation Area (GCA) in the North Pacific of Costa Rica. The analysis consisted of an ... -
G17.8 + 16.7: A new supernova remnant
(2021)Non-thermal radio emission is detected in the region of the gamma-ray source FHES J1723.5 − 0501. The emission has an approximately circular shape 0.8° in diameter. The observations confirm its nature as a new supernova ... -
G279.0+1.1: a new extended source of high-energy gamma-rays
(2020)G279.0+1.1 is a supernova remnant (SNR) with poorly known parameters, first detected as a dim radio source and classified as an evolved system. An analysis of data from the Fermi-Large Area Telescope (LAT) revealing for ... -
Gaschromatographische Analyse des Samenfettes der mittelamerikanischen Fevillea Cordifolia (Cucurbitaceae)
(1992)The fat of the seeds of Fevillea cordifolia was extracted under exclusion of oxygen and light and then characterized by 13C-NMR in regard to the contained unsaturated acid moieties. The total fat was separated by HPLC to ... -
Gastric cancer in the era of immune checkpoint blockade
(2019-09-24)Gastric cancer (GC) is one of the most important malignancies worldwide because of its high incidence and mortality. The very low survival rates are mainly related to late diagnosis and limited treatment options. GC is the ... -
Gastropods and bivalves taken as by-catch in the deep-water shrimp trawl-fishery along the Pacific coast of Costa Rica, Central America
(2017)Deep-water habitats are among the least studied but most vulnerable environments. By-catch data from deep-water fisheries in Latin America are limited, and detailed reports on associated molluscs are scarce. This study ... -
Gelatinous fibers and variant secondary growth related to stem undulation and contraction in a monkey ladder vine, Bauhinia glabra (Fabaceae)
(2014)Premise of the study: Some of the most striking stem shapes occur in species of Bauhinia (Fabaceae) known as monkey ladder vines. Their mature stems are flattened and develop regular undulations. Although stems have variant ... -
La genealogía de doña Isabel Jiménez. Una aproximación a la primera fase del mestizaje en Costa Rica
(Orígenes. Revista de la Asociación de Genealogía e Historia de Costa Rica, 1(1), 271-284, 2012)The genealogy of doña Isabel Jiménez is a evidence of Spanish-Amerindian admixture since the early Spanish Colony in Costa Rica. The observed a DNA lineage wich has an Amerindian ancestry in a a deep matrilineal genealogy. ... -
Genera Pleurothallidinarum: An updated phylogenetic overview of Pleurothallidinae
(2016-08-30)Subtribe Pleurothallidinae with just over 5000 species is possibly the most species-rich of all orchids. It has been growing steadily for more than two centuries, but the last three decades have been especially active in ... -
Genera Pleurothallidinarum: the era of Carlyle Luer
(2017)The era or Carlyle Luer, which currently comprehends the forty-two years since the publication of the first Icones Pleurothallidinarum in 1975, has witnessed a true revolution in the knowledge and understanding of the ... -
Generación de pronósticos retrospectivos de caudal para cuencas hidrográficas en Costa Rica por medio de la técnica de análisis de correlación canónica
(2023)Introducción: Los pronósticos de caudales son importantes para la toma de decisiones respecto al uso del recurso hídrico, por ejemplo, para la planeación de generación eléctrica. En particular, los pronósticos estacionales, ... -
General Chemistry Without Orbitals
(2020)We illustrate the solutions of Schroedinger's equation for the hydrogen atom in coordinates of all four systems, and differentiate the applicability of orbitals in these four systems. We present reasons that future textbooks ... -
Generating climate change scenarios at high resolution for impact studies and adaptation: Focus on developing countries
(2005)This paper shows that, with existing techniques and approaches, climatic change scenarios at high resolution can be generated in developing countries despite the many remaining gaps and challenges. Firstly, current techniques ... -
Generation of myxomycete data from three discrete experiments using moist chamber cultures in a Neotropical forest
(2021-11-23)The moist chamber technique is widely used in ecological research on myxomycetes. However, limited assessments on the usefulness of the technique have been carried out using empirical data. In the present study, three ... -
Generic recircumscriptions of Oncidiinae (Orchidaceae: Cymbidieae) based on maximum likelihood analysis of combined DNA datasets
(2012)Phylogenetic relationships within the orchid subtribe Oncidiinae sensu Chase were inferred using maximum likelihood analyses of single and multilocus DNA sequence data sets. Analyses included both nuclear ribosomal internal ...