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Search Results: 1 - 10 of 38245 matches for " Ma Carmen Saucedo Figueredo "
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Por qué siguen mojados? Why are they still wet from urine?
Ma Carmen Saucedo Figueredo
Index de Enfermería , 2008,
Abstract:
Sincronía reproductiva interpoblacional de Agave cocui (Agavaceae) en Venezuela
Figueredo,Carmen J; Villegas,José Luis; Nassar,Jafet M;
Revista de Biología Tropical , 2011,
Abstract: interpopulation reproductive synchrony of agave cocui (agavaceae) in venezuela. agave cocui (agavaceae) is a species with broad distribution in arid and semiarid areas of venezuela and colombia. despite of its ecological importance as a source of food for wildlife, and its economic value for production of a spirit drink, studies on the reproductive ecology of the species are relatively rare. in this study, we conducted a oneyear evaluation of the flowering and fruiting phenology of a. cocui in the eight representative localities of the species’ distribution in venezuela. within each study site, we chose an area with a minimum of 50 reproductive individuals and followed their reproductive phenophases with the help of binoculars, using six qualitative cathegories (emerging reproductive stalk, flowers, inmature fruits, mature fruits, bulbils and dry stalk) every two months. emergence of the reproductive stalk in most of the examined populations began in september (rainy season), although this event delayed two months in a few populations. we detected significant negative correlations between precipitation and the percentage of flowering occurrence in four of the eight populations. floral resources are available for flower visitors during approximately five months of the year (january-may). in most populations production of flowers initiated in january (dry season), and for western venezuela and andean regions, the flowering main peak occurred in january. localities from the central and eastern coast exhibited the flowering peak in march, showing a delay of approximately two months with respect to other populations. beginning of fruit set varied among localities from january to may; however, peak production of mature fruits concentrated in may, and fruit occurrence varied broadly between 5.2 and 85%. bulbil production was detected in all populations and varied greatly among them (maximum percentage per population: 26.19-92.10%). high flowering synchronicity (phenophase
Sincronía reproductiva interpoblacional de Agave cocui (Agavaceae) en Venezuela
Carmen J Figueredo,José Luis Villegas,Jafet M Nassar
Revista de Biología Tropical , 2011,
Abstract: cocui (Agavaceae) es una especie de amplia distribución en zonas áridas y semiáridas de Venezuela y Colombia. A pesar de su importancia ecológica como fuente de recursos para la fauna silvestre y de su potencial valor económico como materia prima para la producción del licor “Cocuy de Penca”, los estudios sobre su ecología reproductiva son muy escasos. En este estudio se evaluó la fenología de floración y fructificación de A. cocui en ocho localidades de Venezuela. La fase reproductiva se inició al finalizar el periodo de lluvias. Las flores se producen durante cinco meses. Para la Región Noroccidental del país y los Andes los máximos de floración ocurrieron en enero, mientras que las localidades en la costa central y oriental exhibieron un desface de cerca de dos meses, a principios de marzo. La mayor sincronía floral ocurrió entre todas las poblaciones censadas en el occidente del país, incluyendo las localidades andinas. Dicha sincronía reproductiva potenciaría la conformación de un corredor de néctar para aves y murciélagos, que se extendería desde el Norte de Falcón, en la Costa Occidental, hasta los bolsones andinos, en el Suroeste del país. Interpopulation reproductive synchrony of Agave cocui (Agavaceae) in Venezuela. Agave cocui (Agavaceae) is a species with broad distribution in arid and semiarid areas of Venezuela and Colombia. Despite of its ecological importance as a source of food for wildlife, and its economic value for production of a spirit drink, studies on the reproductive ecology of the species are relatively rare. In this study, we conducted a oneyear evaluation of the flowering and fruiting phenology of A. cocui in the eight representative localities of the species’ distribution in Venezuela. Within each study site, we chose an area with a minimum of 50 reproductive individuals and followed their reproductive phenophases with the help of binoculars, using six qualitative cathegories (emerging reproductive stalk, flowers, inmature fruits, mature fruits, bulbils and dry stalk) every two months. Emergence of the reproductive stalk in most of the examined populations began in September (rainy season), although this event delayed two months in a few populations. We detected significant negative correlations between precipitation and the percentage of flowering occurrence in four of the eight populations. Floral resources are available for flower visitors during approximately five months of the year (January-May). In most populations production of flowers initiated in January (dry season), and for Western Venezuela and Andean regions, the
Determinación de la prevalencia de anemia en terneros en un sistema de cría artificial - Prevalence determination of calf anemia in an artificial breeding system
Figueredo, J.M,Abeledo, Ma,Antonia Vega, E
REDVET , 2010,
Abstract: ResumenCon el objetivo de determinar la prevalencia de anemia en terneros enexplotación intensiva, fueron estudiados 7826 animales a los que se lesextrajo sangre para determinar los niveles de hemoglobina, hematocrito(VGA) y número de eritrocitos, aplicación de las constantescorpusculares de Wintrobe y a un grupo de 120 terneros anémicos y noanémicos les fueron determinados las proteínas plasmáticas, hierro ycobre séricos, resultados que pusieron de manifiesto una prevalenciainstantánea de anemia del 27.2 % predominando el tipo morfológicomicrocítica hipocrómica afectando hasta un 35 % al ternero lactantecorrespondiéndose las más altas presentaciones entre los meses demarzo y abril (final del periodo seco) y menores en julio y agosto(periodo lluvioso), predominando la disminución del hierro sérico enestos animales sin que existieran diferencias entre los terneros de laraza Holstein y sus cruces con el Cebú ni entre sexo.SummaryIn order to determine the prevalence of anemia in calves under intensive exploitation, 7826 animals were studied by taking blood samples to find the levels of hemoglobin, hematocrit (VGA) and the number of erythrocytes, the Wintrobe’s corpuscular constants were also applied plasma proteins and serous iron and copper were studied in 120 anemicand non-anemic calves the results showed 27.2 % of instantaneousanemia prevalence the microcytic hypochromic were the predominantmorphologic type affecting up to 35% of unweaned calves and thehighest level of anemia was found in March and April (end of the dryseason) and the lowest were found in July and August (raining season).With low serous iron concentration in these 120 animals and nodifferences were found between Holstein and crossbreeding of this racewith the Cebú or between males and females.
Programas de vacunación
Varela,Ma Carmen;
Revista Espa?ola de Salud Pública , 2009, DOI: 10.1590/S1135-57272009000500005
Abstract: immunization is a highly cost-effective intervention that saves many lives. its objective is to control and eliminate vaccine-preventable diseases (when the characteristics of the disease and the vaccine make it possible), resulting in improvements in the health of the population. in spain, the first vaccination schedule was introduced in 1975 and currently coverages > 95% are achieved in children aged < 2 years of age. before deciding to introduce a vaccination programme in a community or country, a series of aspects should be considered, including the disease burden in the population, the effectiveness and safety of the vaccine, the changes in the dynamics of the infection when the vaccine is introduced, the cost-effectiveness of the vaccine, the theoretical potential of elimination/eradication of the disease and the existence of other preventive or therapeutic measures. once the programme has been introduced it should be subject to evaluation, considering aspects such as the coverage, effectiveness, safety and the impact on the population. this work defines different vaccination strategies for three diseases for which efficacious and safe vaccines are available: hepatitis a, influenza and varicella.
Modelo para la evaluación de estudios online. El caso de la Universidad Autónoma de Tamaulipas en México
Ma. Carmen Llorente Cejudo
Pixel-Bit , 2006,
Abstract: Con este trabajo pretendemos dar a conocer un estudio que se ha llevado a cabo con el propósito de evaluar la Maestría en Tecnología Educativa impartida por la Universidad Autónoma de Tamaulipas (México). Más concretamente, nos centraremos en el modelo de evaluación empleado, los instrumentos elaborados para la recogida de información, así como en la exposición de aquellas variables y dimensiones objeto de estudio que forman parte de la misma.
Editorial
Andrade, Ma. del Carmen
Materiales de Construccion , 1993,
Abstract:
Patrones atribucionales y rendimiento académico: diferencias culturales y de género
Ma Carmen Mesa Franco
Revista de Investigación en Educación , 2003,
Abstract: En este trabajo nos proponemos analizar las atribuciones acerca de su propio logro escolar de los alumnos de Primer Ciclo de Educación Secundaria de la ciudad de Melilla. Más específicamente, estamos interesados en estudiar si se producen en nuestros alumnos patrones atribucionales típicos al explicarse sus éxitos/fracasos escolares en función del rendimiento académico, la cultura y el género, así como la interacción entre las variables citadas. Utilizamos en este estudio el cuestionario de Estilos Atributivos de Alonso Tapia y Sánchez García (1992). Los resultados obtenidos apoyan la existencia de patrones diferenciales relacionados con las variables de rendimiento y etnia, mientras que las diferencias debidas al género se producen en menor medida.
Abstract
Ma Carmen Moreno Arroyo
Revista de la Sociedad Espa?ola de Enfermería Nefrológica , 2010,
Abstract:
Entre pinceles y libros: textos para un enfoque intertextual e interdisciplinar en el aula de lengua
Ma Carmen Quiles Cabrera
álabe , 2012,
Abstract: El presente artículo realiza un aproximación al tratamiento de la pintura y la literatura en clase de lengua. Pondremos de manifiesto cómo la conexión intertextual, presente en las manifestaciones estéticas, puede resultar una vía de actuación docente al servicio de la adquisición de lenguas. De este modo, detallamos una propuesta de trabajo que perfila varias líneas de aplicación al aula.
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