Investigación
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Recent Submissions
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Automated Quantification of Ki-67 on Gastric Epithelial Tissue based on Cell Nuclei Area Ratio
(2022)The objective was to develop an automated algorithm for the estimation of a protein (Ki-67) index based on cell nuclei area ratio of gastric epithelial tissue cells; for this purpose, digital histopathology images were ... -
Efecto de la inclusión de Musa sp. en la conservación de ensilajes de Trichanthera gigantea (Humb. & Bonpl.) Nees.
(2021)Objetivo: Evaluar el efecto de la inclusión de diferentes niveles de Musa sp. en la calidad nutricional y fermentativa de ensilajes de Trichanthera gigantea (Humb. & Bonpl.) Nees. Materiales y Métodos: Se utilizó un ... -
Biological indicators of animal welfare in rodents in the biological essay laboratory of the University of Costa Rica: Evaluation protocols
(2019)Animal welfare can be affected by many factors that compromise both physical and mental health, that is why the more objective relationships are provided, the greater the likelihood of identifying the state of well-being ... -
El debate sobre la legislación de igualdad de la mujer en Costa Rica (1984-1990)
(2021-07-13)Este artículo explora la introducción de las ideas sobre la igualdad de la mujer en Costa Rica durante la década de 1980, reconstruyendo el debate que surgió luego de la presentación del proyecto de ... -
Silage quality and bacterial diversity of silages inoculated with Listeria monocytogenes and Lacticasseibacillus paracasei_6714
(2023-03-01)Introduction: King grass (Cenchrus purpureus (Schumach.) Morrone, syn. Pennisetum purpuphoides) and pineapple peel (Ananas comosus) silages are food alternatives for livestock in conditions of feed shortage. Objective: ... -
Linfohistiocitosis Hemagofagocítica secundaria en adultos: propuesta de una guía clínica para el diagnóstico temprano y el abordaje oportuno del paciente.
(2023)La Linfohistiocitosis Hemagofagocítica (HLH) secundaria en el adulto es un síndrome clínico en donde la activación excesiva y permanente de los macrófagos y los linfocitos T citotóxicos derivan en una tormenta citoquínica ... -
Long-term cryopreservation of non-spore-forming fungi in Microbank™ beads for plant pathological investigations
(2018-05)Long-term preservation of experimental fungi without genetic, morphological, and pathogenic changes is of paramount importance in mycological and plant pathological investigations. Several cryogenic and non-cryo- genic ... -
Nutrient Management Improvements in Forestry Species
(2014)Proper soil management and forest nutrition are key to maintaining the productivity of planted or natural forests. This article reviews related concepts and developments for Central American forests and focuses on relevant ... -
Vochysia guatemalensis Donn. Smith, an alternative species for reforestation on acid tropical soils
(2016-03)Vochysia guatemalensis Donn. Smith is a native species commonly used in small-scale reforestation programs in Costa Rica recognized for its fast growth under acidic and unfertile soil conditions. This study aimed to ... -
Accumulation and export of nutrients in harvested wood of Vochysia guatemalensis in small-scale forest plantations
(2017-01)To enhance knowledge required for better management of tropical forest plantations, aboveground accumulation in different tree tissues (stem, branches, foliage and total) at different growth stages of guatemalensis (white ... -
A Novel Control System for Medium-Voltage Hexverter-Based Drives
(2020-09-23)In this paper, a novel control system for the Hexverter-based drive is proposed and analysed. Unlike previously proposed control schemes, the proposed one does not require the information of the machine variables to ... -
An Overview of Applications of the Modular Multilevel Matrix Converter
(2020-10-22)The modular multilevel matrix converter is a relatively new power converter topology suitable for high-power alternating current (AC)-to-AC applications. Several publications in the literature have highlighted the converter ... -
An Overview of Modelling Techniques and Control Strategies for Modular Multilevel Matrix Converters
(2020-09-08)The Modular Multilevel Matrix Converter is a relatively new power converter topology appropriate for high-power Alternating Current (AC) to AC purposes. Several publications in the literature have highlighted the converter ... -
Incumplimiento en el contenido nutricional de alimentos importados para mascotas en Costa Rica
(2023-05-01)La normativa que regula los alimentos balanceados asegura el bienestar de las mascotas, la salud pública y la seguridad al consumidor, por lo que es valioso corroborar el contenido de los nutrimentos declarados en las ... -
Fluid agency in relation to algorithms: Tensions, mediations, and transversalities
(2023-05)This paper argues for a fluid approach to the study of agency in relation to algorithms, one that promotes crossing the boundaries of established analytical positions and breaking away from dualistic forms to frame its ... -
Homenaje a Flora Solano
(2022)Flora Solano Cháves, historiadora, que ha trabajado muchísimo y ha aportado resultados esenciales para la historia de la ciencia en Costa Rica, no solo la meteorología, sino otras áreas y sus vinculaciones con el desarrollo ... -
Biblioteca Nacional Miguel Obregón Lizano y sus aportes para la investigación histórica de la ciencia en Costa Rica
(2022)La Biblioteca Nacional Miguel ObregónmLizano ha sido fuente de numerosos aportes para la investigación histórica de la ciencia en Costa Rica. -
Programa de Investigación en Estudios Sociales de la Ciencia, la Técnica y el Medio Ambiente, del Centro de Investigaciones Geofísicas de la Universidad de Costa Rica
(2022)El presente documento de análisis describe, primero, la estructura institucional y académica en que se desarrolló el PESCTMA en el CIGEFI. La sección 2 contiene alguna información sobre la conformación institucional y ... -
Variantes ultraestructurales de la cochinilla harinosa Pseudococus elisae Borchsenius (Hemíptera:Pseudococcidae) en Costa Rica
(2018)Muchas de las especies de cochinillas harinosas (Hemiptera: Pseudococcidae) consideradas plagas de cultivos, están concentradas en la región de países del trópico. Con el objetivo de disponer de información actualizada ... -
Patient Safety Indicators in Clinical Laboratories: An Exploratory Survey among Costa Rican Laboratory Professionals
(2021-02-13)Introduction: Patient safety indicators (PSIs) focus on the prevention of complications and minimization of unnecessary patient risk. Using the methodology known as SMART, the most suitable indicators may be selected by ...