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Now showing items 8043-8062 of 13511
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Molecular characterization of pseudomonodelphic dagger nematodes of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) in Costa Rica, with notes on Xiphinema setariae Tarjan, 1964
(Springer, 2016-12-16)Pseudomonodelphic dagger nematodes of the genus Xiphinema are characterized by having one of the genital branches reduced and lacking an ovary. They are usually reported from tropical regions. Nematode surveys conducted ... -
Molecular characterization of Salmonella Paratyphi B dT+ and Salmonella Heidelberg from poultry and retail chicken meat in Colombia by Pulsed-Field gel electrophoresis
(International Association for Food Protection, 2015)Salmonella Paratyphi B dTz variant (also termed Salmonella Java) and Salmonella Heidelberg are pathogens of public health importance that are frequently isolated from poultry. As a step toward implementing the Colombian ... -
Molecular characterization of Trypanosoma cruzi and infection rate of the vector Triatoma dimidiate in Costa Rica
(Universidad Nacional, Costa Rica, 2012-06-30)According to the genetic characterization by the analysis of the miniexon gene, strains of Trypanosoma cruzi can be classified into six discrete typing units (DTUs), and the DTU 1 into four distinct genotypes associated ... -
Molecular detection and genotyping of chlamydia psittaci in captive psittacines from Costa Rica
(Veterinary Medicine International, 2013-08-18)Oropharyngeal and cloacal swabs from 117 captive psittacine birds presented at veterinary clinics (88) and from shelters/rescue centers of wildlife (29) were collected to determine the prevalence of C. psittaci in captive ... -
Molecular detection and identification of Rickettsiales pathogens in dog ticks from Costa Rica
(Ticks and Tick-borne Diseases, 2016-10)Although vector-borne diseases are globally widespread with considerable impact on animal production and on public health, few reports document their presence in Central America. This study focuses on the detection and ... -
Molecular detection of acute hepatopancreatic necrosis disease (AHPND) in Penaeus vannamei shrimps in Costa Rica
(Elsevier, 2020-03-02)Acute hepatopancreatic necrosis disease (AHPND) is a bacterial disease associated to severe mortality in farmed shrimps, and caused by Vibrio parahaemolyticus containing plasmid pVA-1 encoding pirA and pirB toxins. This ... -
Molecular detection of Plasmodium malariae/Plasmodium brasilianum in non-human primates in captivity in Costa Rica
(PLOS ONE, 2017-01-26)One hundred and fifty-two blood samples of non-human primates of thirteen rescue centers in Costa Rica were analyzed to determine the presence of species of Plasmodium using thick blood smears, semi-nested multiplex ... -
Molecular evidence of intraspecific variability in different habitat-related populations of Triatoma dimidiata (Hemiptera: Reduviidae) from Costa Rica
(Springer, 2010-02-18)Intraspecific genetic variation among Triatoma dimidiata (Hemiptera: Reduviidae) from seven Costa Rican populations and from different domestic, peridomestic, and sylvatic ecotopes were analyzed. The complete ... -
Molecular identification of Streptococcus sp. and antibiotic resistance genes present in Tilapia farms (Oreochromis niloticus) from the Northern Pacific region, Costa Rica
(European Aquaculture Society (Bélgica), 2021-07-24)Streptococcosis is a bacterial disease in tilapia that produces economic losses, caused mainly by Streptococcus agalactiae and S. iniae. It is treated using oxytetracycline and florfenicol, which when inappropriately ... -
Molecular typing of bovine papillomaviruses in Costa Rica
(Springer, 2022-03-13)Bovine papillomaviruses are related to cause fbroepithelial proliferations in the skin and mucosae and are associated with economic loss mainly related to poor body condition and reduced milk production. This study aimed ... -
Molecular, morphological and histopathological evidence of Spirometra mansoni in wild and domestic animals from Costa Rica
(Elsevier Science B.V, 2024-04-30)Spirometra mansoni is a diphyllobothroid cestode and one of the causing agents of sparganosis, a zoonotic foodborne and waterborne infection in humans. This parasite has an indirect life cycle with domestic and wild canids ... -
Monitoreo de la concentración de SO2 en el aire y características físicoquímicas del agua de lluvia en el Volcán Irazú
(Tecnológico de Costa Rica, 2021-10)El dióxido de azufre y otros contaminantes químicos pueden llegar a la naturaleza y el ambiente por medio de la actividad volcánica. Debido a esto, en Costa Rica, las zonas cercanas a los volcanes se encuentran afectadas ... -
Monitoreo de las Floraciones Algales en el Golfo de Nicoya, Puntarenas, Costa Rica
(2013-08-22)Mediante el acuerdo realizado el 22 junio de 2009 entre las instituciones INCOPESCA, SENASA-MAG y la Escuela de Ciencias Biológicas de la Universidad Nacional. El Laboratorio de Fitoplancton Marino se ha comprometido a ... -
Monitoreo isotópico de 13C en CO2 y CH4 atmosféricos en el Valle Central de Costa Rica
(Universidad Nacional (Costa Rica), 2020)Este trabajo presenta un análisis semanal de la composición isotópica de carbono (Junio 2017 – Enero 2018) del dióxido de carbono (CO2) y metano (CH4) en una atmósfera urbana tropical (Valle Central, Costa Rica). Los valores ... -
Monitoring female reproductive function by measurement of fecal estrogen and progesterone metabolites in the white-faced saki (Pithecia pithecia)
(Wiley-Liss, 1994)A simple method for extracting and measuring ovarian steroids in feces is applied to the ovarian cycle, pregnancy, parturition, and period of lacta tional amenorrhea in Pithecia pithecia. Small amounts of wet, unmixed ... -
Monitoring magmatic-hydrothermal activity with rare earth elements in crater lakes
(International Association of Volcanology and Chemistry of the Earth's Interior, 2013-07)Resumen de la ponencia Monitoring magmatic-hydrothermal activity with rare earth elements in crater lakes -
Monitoring transient changes within overpressured regions of subduction zones using ambient seismic noise
(American Association for the Advancement of Sciences (AAAS), 2016)In subduction zones, elevated pore fluid pressure, generally linked to metamorphic dehydration reactions, has a profound influence on the mechanical behavior of the plate interface and forearc crust through its control on ... -
Monografía del cantón de Liberia
(Universidad Nacional, Costa Rica. Centro de Estudios Generales, 1979)Esta investigación se basa en el cantón de Liberia, cabecera de la provincia de Guanacaste, la cual representa la evolución histórica de uno de los pueblos, desde la Colonia hasta la actualidad y un legado colonial muy ... -
La monopolización del conocimiento universitario: "un asalto a los valores de la academia"
(Editorial Universidad Nacional, 2008-12-30)Hace veintisiete años, fue promulgada en los Estados Unidos la ley Bayh-Dohle, que permitió a las universidades públicas estadounidenses patentar los resultados de sus investigaciones financiadas con dinero ... -
La monumentación en las paredes y el mantenimiento catastral urbano
(Universidad Nacional (Costa Rica), 2009)Este artículo enfoca parte de la problemática de los aspectos operacionales existentes en los trabajos de mantenimiento catastral urbano. Cuando se necesita reubicar los puntos originales de la red de apoyo para realizar ...