Now showing items 919-938 of 1169
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Psychosocial and sociocultural characteristics of Nicaraguan and Costa Rican students in the context of intercultural education in Costa Rica
(2018-05-31)This article examines problems and difficulties encountered by Nicaraguan migrant students in the Costa Rican educational system and contrasts their psychosocial and sociocultural well-being with their Costa Rican ... -
Pulmonary hemorrhage induced by jararhagin, a metalloproteinase from Bothrops jararaca snake venom
(2003-11-15)Jararhagin is the most important hemorrhagic component in the venom of the snake Bothrops jararaca, a species of medical importance in South America. It is a P-III zinc-dependent metalloproteinase comprising catalytic, ... -
Purification and characterization of BaH4, a hemorrhagic metalloproteinase from the venom of the snake Bothrops asper
(2000-01)A hemorrhagic metalloproteinase, named BaH4, was isolated from the venom of the snake Bothrops asper by a combination of ion-exchange chromatography on DEAE-Sepharose and gel filtration on Sephacryl S-200. BaH4 is a 69 kDa ... -
Purification and characterization of myotoxin IV, a phospholipase A2 variant, from Bothrops asper snake venom
(1995)A basic myotoxic protein was purified from Bothrops asper venom. Like other basic Bothrops myotoxins, myotoxin IV induces acute muscle damage after intramuscular injection in mice and disrupts negatively charged liposomes ... -
Purification of equine whole IgG snake antivenom by using an aqueous two phase system as a primary purification step
(2015-01)There is a need to introduce innovations in the manufacture of snake antivenoms to increase the supply of these products worldwide. In this work, the fractionation of equine hyperimmune plasma with a new methodology that ... -
Purification of IgG and albumin from human plasma by aqueous two phase system fractionation
(2012-08)The current shortages in human plasma products at global levels justify the development of new, cost effective plasma fractionation methods. We have developed a fractionation process to obtain immunoglobulin G (IgG) and ... -
Quantification of snake venom proteomes by mass spectrometry-considerations and perspectives.
(2023-05-08)The advent of soft ionization mass spectrometry-based proteomics in the 1990s led to the development of a new dimension in biology that conceptually allows for the integral analysis of whole proteomes. This transition from ... -
Quantitation by enzyme-immunoassay of antibodies against Bothrops myotoxins in four commercially-available antivenoms
(1991)An enzyme-immunoassay (EIA) for the quantitation of antibodies against myotoxins present in the venoms of Bothrops asper (Costa Rica), B. atrox (Colombia) and B. moojeni (Brazil), was developed. This EIA was utilized for ... -
¿Qué es el Síndrome de Ovario Poliquístico?
(2010-01)El síndrome de ovario poliquístico (SOP) es uno de los desórdenes endocrinos más comunes en mujeres en edad reproductiva, ya que afecta, aproximadamente, al 5-10% de la población femenina. Generalmente aparece durante la ... -
Re-inoculation strategies enhance the degradation of emerging pollutants in fungal bioaugmentation of sewage sludge
(2014)The use of Trametes versicolor has been partially successful in the removal of some pharmaceuticals from sewage sludge in laboratory-scale biopile systems. The application of two strategies for the re-inoculation of ... -
Reducing the impact of snakebite envenoming in Latin America and the Caribbean: achievements and challenges ahead
(2014-09-01)Snakebite envenoming constitutes an important public health problem in Latin America and some countries of the Caribbean. The advances and pending tasks in the study and control of this neglected tropical disease in ... -
Reevaluación de los índices larvales para Aedes aegypti (Diptera: Culicidae) en dos localidades con historia epidemiológica de dengue, Costa Rica
(2013-06-01)Introducción. En Costa Rica, el dengue es la principal enfermedad de trasmisión vectorial. Esta afecta ecosistema urbanos como La Carpio y La Gran Puntarenas, donde Aedes aegypti es altamente prevalente. Objetivo. Reevaluar ... -
Reflexiones desde la academia. Universidad, ciencia y sociedad
(2019-01)El libro 'Reflexiones desde la academia. Universidad, ciencia y sociedad' recoge reflexiones relacionadas con la situación actual de las universidades públicas en América Latina y las encrucijadas por las que atraviesan ... -
Regional warming and the thermal regimes of American crocodile nests in the Tempisque Basin, Costa Rica
(2016-06-11)Spatial variation in global climate change makes population-specific responses to this enigmatic threat pertinent on a regional scale. Organisms with temperature-dependent sex determination (TSD) potentially possess a ... -
Relación de los polimorfismos VEGFA −2578C/A y COX-2 −1195 G /A y el grado de atrofia gástrica en una población de adultos costarricenses
(2021)Antecedentes: En nuestro país existe una alta incidencia de cáncer gástrico (CG) que se acompaña de una importante mortalidad, se sabe que infección por Helicobacter pylori es un factor importante, condición ... -
Relation of atrophic gastritis with Helicobacter pylori-CagA+ and interleukin-1 polymorphisms
(World Journal Gastroenterol 14(42), 2008-11-14)AIM: To determine the association of Helicobacter pylori (H pylori) CagA+ infection and pro-inflammatory polymorphisms of the genes interleukin (IL)-1RN and IL-1B with the risk of gastric atrophy and peptic ulcers in a ... -
Remoción de parámetros fisicoquímicos y microbiológicos de plantas de tratamiento de aguas residuales del Gran Área Metropolitana, Costa Rica
(2023-01-28)Las aguas residuales inadecuadamente tratadas son un factor de riesgo para la salud pública dado que son un vehículo de diseminación de microorganismos patógenos como virus entéricos. Sin embargo, la circulación de patógenos ... -
Removal of carbamates and detoxification potential in a biomixture: Fungal bioaugmentation versus traditional use
(2017)The use of fungal bioaugmentation represents a promising way to improve the performance of biomixtures for the elimination of pesticides. The ligninolyitc fungus Trametes versicolor was employed for the removal of three ...