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Mostrando ítems 11015-11034 de 19078
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Isolation and Molecular Characterization of Acanthamoeba Strains from Dental Units in Costa Rica
(2015-03)Free-living amoebae are protozoa widely distributed in nature, which can be found in a variety of environments. Four genera are recognized as causal agents of infections in humans and animals: Acanthamoeba, Naegleria, Balam ... -
Isolation and molecular characterization of Xylella fastidiosa from coffee plants in Costa Rica
(2008-10)Coffee plants exhibiting a range of symptoms including mild to severe curling of leaf margins, chlorosis and deformation of leaves, stunting of plants, shortening of internodes, and dieback of branches have been reported ... -
Isolation and partial characterization of a myotoxin from the venom of the snake Bothrops nummifer
(1986)A myotoxin from the venom of the snake Bothrops nummifer was purified to homogeneity by ion-exchange chromatography on CM-Sephadex. The toxin is a basic dimer with a subunit molecular weight of 16,000, as estimated by ... -
Isolation from a polyvalent antivenom of antibodies to a myotoxin in Bothrops asper snake venom
(1985)Antibodies against Bothrops asper rmyotoxin were purified from a polyvalent antivenom by affinity chromatography . These antibodies neutralized most of the myotoxic activity of crude B. asper venom, as judged by histologic ... -
Isolation of a galactose-binding lectin from the venom of the snake Bothrops godmani (Godmann's pit viper).
(1990)A galactose-binding lectin, isolated from the venom of B. gotlmani by affinity chromatography . is an acidic protein (pI 4.9) with a subunit mol. wt of about 14,000, occurring mostly as a disulfide-linked dimer of 28,000. ... -
Isolation of a myotoxin from Bothrops asper venom: Partial characterization and action on skeletal muscle
(1984)A myotoxic phospholipase has been isolated from Bothrops asper venom by ion-exchange chromatography on CM-Sephadex followed by gel filtration on Sephadex G-75. The toxin is a basic polypeptide with an estimated molecular ... -
Isolation of a Toxigenic and Clinical Genotype of Clostridium difficile in Retail Meats in Costa Rica
(2013-02)We isolated a regional toxigenic genotype of Clostridium difficile, previously found in human infection in 4 of 200 (2%) samples of retail meats for human consumption: 1 of 67 samples of beef, 2 of 66 of pork, and 1 of 67 ... -
Isolation of Acanthamoeba T5 from Water: Characterization of Its Pathogenic Potential, Including the Production of Extracellular Vesicles
(2020-01-23)Acanthamoeba is a genus of free-living amoebae widely distributed in nature, associated with the development of encephalitis and keratitis. Despite the fact that it is common to find genotype T5 in environmental samples, ... -
Isolation of an acidic phospholipase A2 from the venom of the snake Bothrops asper of Costa Rica: Biochemical and toxicological characterization
(2010-03)Phospholipases A2 (PLA2) are major components of snake venoms, exerting a variety of relevant toxic actions such as neurotoxicity and myotoxicity, among others. Since the majority of toxic PLA2s are basic proteins, acidic ... -
Isolation of basic myotoxins from Bothrops Moojeni and Bothrops Atrox snake venoms
(1990)Three myotoxins, one from the venom of Bothrops atrox and two from the venom of B. moojeni, were isolated by ion-exchange chromatography on CM-Sephadex C-25. The three toxins are basic proteins with an estimated mol. wt ... -
Isolation of Flavonoids from Deguelia duckeana and Their Effect on Cellular Viability, AMPK, eEF2, eIF2 and eIF4E
(2016)Preparations of Deguelia duckeana, known in Brazil as timbó, are used by indigenous people to kill fish. Reinvestigation of its extracts resulted in the isolation and identification of 11 known flavonoids identified as ... -
Isolation of Fungi and Bacteria Associated with the Guts of Tropical Wood-Feeding Coleoptera and Determination of Their Lignocellulolytic Activities
(2015-08)The guts of beetle larvae constitute a complex system where relationships among fungi, bacteria, and the insect host occur. In this study, we collected larvae of five families of wood-feeding Coleoptera in tropical forests ... -
Isolation of Major Components from the Roots of Godmania aesculifolia and Determination of Their Antifungal Activities
(2013)From the methanol root extract of Godmania aesculifolia, a species selected in a multinational OAS program aimed at discovering antifungal compounds from Latin American plants, a new chavicol diglycoside (1), the known ... -
Isolation of two basic phospholipases A2 from Bothrops diporus snake venom: comparative characterization and synergism between Asp49 and Lys49 variants
(2019)Bothrops diporus, previously considered a subspecies of the B. neuwiedi complex, is a medically relevant viperid in Northeastern Argentina. The venom of this species causes local tissue damage characterized by ... -
Isolation, characterization and molecular cloning of AnMIP, a new α-type phospholipase A2 myotoxin inhibitor from the plasma of the snake Atropoides nummifer (Viperidae: Crotalinae)
(2007)A new phospholipase A2 (PLA2)-inhibitory protein was isolated from the plasma of Atropoides nummifer, a crotaline snake from Central America. This inhibitor was named AnMIP, given its ability to neutralize the activity ... -
Isolation, integration, and ethnic boundaries in rural Guatemala
(2005)We investigate two perspectives about the effects of reduced discrimination and greater social and economic opportunities on ethnic identity in rural areas of contemporary Guatemala. Our analysis contrasts the effects of ... -
Isometry groups of borel randomizations
(2018-08)We study global dynamical properties of the isometry group of the Borel randomization of a separable complete structure. In particular, we show that if properties such as the Rohklin property, topometric generics, extreme ... -
Isquemia mesentérica aguda: revisión de tema y propuesta de protocolo de manejo en el servicio de vascular periférico del Hospital Rafael Ángel Calderón Guardia
(2020-07-20)La isquemia mesentérica aguda es una patología poco frecuente, pero de alta mortalidad. Las cuatro principales causas son: el embolismo arterial, la trombosis arterial, la isquemia mesentérica no oclusiva, y la trombosis ... -
It saves lives
(2008)Esophageal feeders are an effective tool to get colostrum into newborn calves. By following a few simple steps, a good employee can easily use it safely and, most important, immunoglobulin absorption rates compare favorably ... -
Itinerario libertario en José María (Billo) Zeledón (1900-1920)
(2016-01)Este texto tiene el objetivo de caracterizar la producción intelectual del escritor, poeta y educador José María (Billo) Zeledón, con el fin de precisar su tránsito por las ideas anarquistas en las dos primeras décadas del ...