Listar por título
Mostrando ítems 9813-9832 de 34291
-
DNA-assisted identification of Caulerpa (Caulerpaceae, Chlorophyta) reduces species richness estimates for the Eastern Tropical Pacific
(2016)Taxonomy and species richness estimates for the genus Caulerpa have proven challenging due to the difficulty of assessing morphological species limits. In the present study we evaluate the taxonomy of the genus and assess ... -
DNase activity in Costa Rican crotaline snake venoms: quantification of activity and identification of electrophoretic variants.
(1991)DNase activity of Costa Rican crotaline snake venoms from the genera Bothrops, Crotalus and Lachesis was quantified by an enzymodiffusion method on agarose/DNA gels containing ethidium bromide. The reaction is detected as ... -
Do biological measures mediate the relationship between education and health: A comparative study
(Social Science & Medicine 72 (2011) 307-315, 2011)Despite a myriad of studies examining the relationship between socioeconomic status and health outcomes, few have assessed the extent to which biological markers of chronic disease account for social disparities in health. ... -
Do different methods yield equivalent estimations of brain size in birds?
(2020-08-31)The ratio of brain size to body size (relative brain size) is often used as a measure of relative investment in the brain in ecological and evolutionary studies on a wide range of animal groups. In birds, a variety of ... -
Do Magnetic Fields Destroy Black Hole Accretion Disk g-Modes?
(2015-08-04)Diskoseismology, the theoretical study of normal-mode oscillations in geometrically thin, optically thick accretion disks, is a strong candidate for explaining some quasi-periodic oscillations in the power spectra of many ... -
Do U.S. marketing orders have much market power? An examination of the Almond Board of California
(2004)This review tests the conventional wisdom that U.S. marketing orders act as profit-maximizing cartels. It analyzes the marketing order for U.S. almonds in both the domestic and export markets. Such a case study is relevant ... -
Una doble infección viral en orquídeas del género Cymbidium
(1986)A double -viral infection in Cymbidium hybrids is described. Virions were discovered by negative staining of sick plant sap, which showed a rigid type and a flexible virus. Two types of viral-cytoplasmatic inclusions, ... -
Docencia ayer y hoy: Agronomía
(2019-01-21) -
Docencia ayer y hoy: Antropología
(2019-02-04) -
Docencia ayer y hoy: Artes dramáticas
(2019-04-29) -
Docencia ayer y hoy: Nutrición
(2019-03-04) -
Docencia ayer y hoy: Trabajo Social
(2019-03-25) -
Docencia ayer y hoy: Una nación de derecho
(2019-06-24) -
Docencia Costructivista en la Universidad: una serie de ensayos sobre experiencias en Costa Rica
(San Pedro, Montes de Oca: Universidad de Costa Rica, 2011)La naturaleza fisiológica y ecológica del proceso de aprendizaje en el ser humano, la construcción social del conocimiento, el aprendizaje significativo, la adquisición de habilidades personales y de competencias profesionales ...