Listar Revista de Biología Tropical por título
Mostrando ítems 88-107 de 193
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Estudio comparativo de venenos de ejemplares recien nacidos y adultos de Bothrops asper
(1980)Se estudiaron comparativamente los venenos de ejemplares recién nacidas (menos de un mes de edad) y adultas de Bothrops asper de dos regiones costarricenses: San Carlos en la vertiente atlántica y Puriscal en la pacífica. ... -
Estudios cariológicos de cinco especies de serpientes costarricenses de la familia colubridae
(1984)The karyotypes of five species of colubrid snakes from Costa Rica are as follows: Imuntodes cenchao and Drymobius margaritiferus have a diploid number of 36, with 16 macro- and 20 microchromosomes. The fourth pair is ... -
Estudios sobre la estabilidad del virus del rayado fino del maíz por degradación enzimática del ARN viral y microscopia electrónica de las partículas
(1986)The stability of "Maize Rayado Fino Virus" capsids was studied correlating enzymatic degradation analysis of the RNA in full capsids with electron microscopy of negatively stained particles. The great thermal stability of ... -
Euphausiids (Crustacea: Euphausiacea) from a hotspot of marine biodiversity, Isla del Coco, Costa Rica, Eastern Tropical Pacific
(2016)Euphausiids have been well studied in several regions of the Pacific Ocean; however, there is less information regarding euphausiids in Costa Rican waters. We analyzed euphausiid specimens collected around Isla del Coco ... -
Expression of the rice hoja blanca virus (RHBV) non-structural protein 3 (NS3) in Escherichia coli and its in situ localization in RHBV-infected rice tissues
(Universidad de Costa Rica, 2004)The non-structural NS3 protein gene from the rice hoja blanca virus (RHBV) was fused to the glutathione- S-transferase carboxilic end and expressed in Escherichia coli strain JM83. Large quantities of fusion protein were ... -
Extinction of Vibrio choleare in acidic substrata: contaminated cabbage and lettuce treated with lime juice
(1994)Lime juice killed Malian of Vibrio cholerae 01, El Tor, Inaba, present on cabbage and lettuce contaminated in the laboratory. The lethal effect was evident within 5 min of exposure to lime juice. No vibrios could be recovered ... -
Fenología de Crescentia alata (Bignoniaceae) en Guanacaste, Costa Rica
(2019)Los estudios fenológicos generan información que contribuye con el conocimiento de las relaciones entre especies y componentes abióticos de los ecosistemas, disponibilidad de alimento para animales y regeneración de cobertura ... -
Genetic variation and racial admixture in the Miskito of the southern Mosquito Shore, Nicaragua
(1998)A survey of the electrophoretic variation at eleven loci red-blood cell enzymes. hemoglobins and serum proteins was performed on a sample of 59 Miskitos stemming from the southernmost part of the Mosquito shore of Nicaragua. ... -
Genetic variation in the Bribri and Cabecar Amerindians from Talamanca, Costa Rica
(1991)A screening of more than 40 loci was performed in the Bribri and Cabecar Amerindian populations of Talamanca in Southeastern Costa Rica. Some differences were found in the distribution (presence or absence) of the variants ... -
Genética de la esquizofrenia: avances en el estudio de genes candidatos
(Rev. biol. trop v.52 n.3, p. 467-473 sep. 2004, 2004)Genetics of Schizophrenia: advances in the study of candidate genes. Schizophrenia is one of the most severe mental disorders that affect 1% of the population worldwide. It is clear that both genetic and environmental ... -
Genotoxicidad de tres plaguicidas utilizados en la actividad bananera de Costa Rica
(Revista de Biología Tropical 52(3) p.601-609, 2004-12-15)Se evaluó la genotoxicidad in vitro de los fungicidas imazalil y tiabendazol y del insecticida clorpirifos, formulaciones empleadas en las bananeras costarricenses, utilizando la técnica de electroforesis de células únicas ... -
Germinación de semillas de Crescentia alata (Bignoniaceae) en distintas condiciones de temperatura, luminosidad y almacenamiento
(2019)Crescentia alata (Bignoniaceae) es una especie arborescente de gran interés cultural y económico desde México hasta Costa Rica. Sin embargo, la protección de las poblaciones naturales y el establecimiento de plantaciones ... -
Global Model selection for evaluation of Climate Change projections in the Eastern Tropical Pacific Seascape
(Revista Biología Tropical 60 (3): 67-81, 2012-11)Two methods for selecting a subset of simulations and/or general circulation models (GCMs) from a set of 30 available simulations are compared: 1) Selecting the models based on their performance on reproducing 20th century ... -
Grupos sanguíneos ABO y Rh y proteínas séricas en una población amerindia, Matambú, Costa Rica
(1985-06)Se llevó a cabo un estudio de la estructura genética de la población de Matambú, Costa Rica, utilizando marcadores genéticos de 6 loci que incluyen los grupos sanguíneos ABO y Rh y la albilmina, ceruloplasmina, haptoglobina ...