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Search Results: 1 - 10 of 28576 matches for " Mariela; González Iglesias "
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Obtención y procesamiento de progenitores hematopoyéticos de sangre periférica para terapia celular en enfermedades angiológicas Obtaining and processing of peripheral blood hematopoietic progenitor cells for cell therapy of angiological diseases
Ana Iris González Iglesias,Mariela Forrellat Barrios,Tania González Suárez,Odalis Salgado Arozena
Revista Cubana de Hematolog?-a, Inmunolog?-a y Hemoterapia , 2011,
Abstract: Se evaluó la seguridad y efectividad de un método manual de recolección de células progenitoras hematopoyéticas de sangre periférica movilizadas con factores estimuladores de colonias granulocíticas (FEC-G) de producción nacional (Leukocim y Hebervital). Se estudiaron 250 pacientes seleccionados para terapia celular en el Servicio de Angiología del Hospital General Docente "Enrique Cabrera". La obtención y separación de las células mononucleares autólogas de sangre periférica (CMN-SP) se realizó mediante el método dise ado en el Instituto de Hematología e Inmunología. Para valorar la eficacia del método se analizaron en el concentrado obtenido las variables: contenido de células nucleadas, de células mononucleadas y de células CD 34+. Además, se determinó la viabilidad celular y la contaminación microbiológica. Se comprobó la eficiencia y seguridad del método de recolección y procesamiento para la obtención de un concentrado con un contenido de células mononucleares adecuado, sin complicaciones de importancia clínica. Se demostró la eficacia de los factores estimuladores de colonias granulocíticas empleados. Los efectos adversos de la movilización resultaron ligeros e independientes del factor estimulador utilizado. The safety and effectiveness of a manual collection method of peripheral blood hematopoietic progenitor cells mobilized by the Cuban-made granulocytic colony-stimulating factors (Leukocim and Hebervital) were evaluated. Two hundred patients, who had been selected for the cell therapy at the Angiology Service of "Enrique Cabrera" General Teaching Hospital, were studied. The method designed by the Institute of Hematology and Immunology served to obtain and separate autologous mononuclear cells from the peripheral blood. For the purpose of assessing the efficacy of this method, the variables contents of nucleate cells, of mononucleate cells and of CD 34+ cells were analyzed in the final concentrate. Additionally, the cell viability and the microbiological pollution were determined. The efficiency and safety of the collecting and processing method for obtaining one concentrate with adequate content of mononuclear cells and no significant clinical complications was confirmed. The efficacy of the Cuban granulocytic colony-stimulating factors was proved. The adverse effects of the mobilization were mild and unrelated to the used stimulating factor.
Movilización de progenitores hematopoyéticos en mayores de 60 a os Mobilization of hematopoietic progenitors in patients over 60 years old
Ana Iris González-Iglesias,Mariela Forrellat-Barrios,Norma Fernández-Delgado,Porfirio Hernández-Ramírez
Revista Cubana de Hematolog?-a, Inmunolog?-a y Hemoterapia , 2012,
Abstract:
Estudios de interés tafonómico en los restos óseos humanos de Laguna Tres Reyes 1 (Partido de Adolfo Gonzales Chaves, provincia de Buenos Aires)
González,Mariela Edith;
Intersecciones en antropolog?-a , 2007,
Abstract: this paper presents the results of taphonomic research carried out on the bioarchaeological record of the laguna tres reyes 1 site (buenos aires province, argentina). the variables analyzed were root etching, chemical deposition (calcium carbonate coating and manganese staining), bone destruction, fractures, rodent and carnivore activities, excavation and cleaning marks, weathering, and bone integrity. based on a macroscopic examination of the surface of the human bones found at the site, this study shows that the skeletons were affected by the activity of small rodents, which left scarce traces on the bones. it is also suggested that small-sized carnivores were able to reach the burials through tunnels excavated previously by the rodents. in general terms, and taking into consideration the alteration of the cortical tissues, the results show that the burials present a complex taphonomic history of low intensity.
Estudios de interés tafonómico en los restos óseos humanos de Laguna Tres Reyes 1 (Partido de Adolfo Gonzales Chaves, provincia de Buenos Aires) Taphonomic studies of human bones from Laguna Tres Reyes 1 (Gonzales Chaves District, Buenos Aires province, Argentina)
Mariela Edith González
Intersecciones en Antropología , 2007,
Abstract: En este trabajo se presentan los resultados del análisis de los efectos tafonómicos del registro bioarqueológico del sitio Laguna Tres Reyes 1 (Partido de Adolfo Gonzales Chaves), realizado en el marco de la tesis de licenciatura. La metodología consistió en el examen macroscópico de la superficie cortical de cada elemento esqueletal sobre el conjunto de entierros primarios. Las variables analizadas fueron: marcas de raíces, depositación química (carbonato de calcio y manchas de manganeso), pérdida ósea, fracturas, actividad de roedores, acción de carnívoros, marcas de excavación y limpieza, meteorización e integridad. Los resultados indican la interacción de una serie de agentes y procesos tafonómicos sobre los huesos humanos que condujeron a una historia tafonómica compleja y de baja intensidad, permitiendo una muy buena preservación del tejido óseo. Los roedores han perturbado este registro fundamentalmente en el aspecto distribucional dejando escasas marcas de su accionar sobre los elementos óseos. Por otro lado, existen evidencias de la acción de peque os carnívoros sobre algunos esqueletos que sugieren que estos animales habrían accedido a ellos deslizándose por los túneles y cuevas excavados por los roedores. This paper presents the results of taphonomic research carried out on the bioarchaeological record of the Laguna Tres Reyes 1 site (Buenos Aires Province, Argentina). The variables analyzed were root etching, chemical deposition (calcium carbonate coating and manganese staining), bone destruction, fractures, rodent and carnivore activities, excavation and cleaning marks, weathering, and bone integrity. Based on a macroscopic examination of the surface of the human bones found at the site, this study shows that the skeletons were affected by the activity of small rodents, which left scarce traces on the bones. It is also suggested that small-sized carnivores were able to reach the burials through tunnels excavated previously by the rodents. In general terms, and taking into consideration the alteration of the cortical tissues, the results show that the burials present a complex taphonomic history of low intensity.
Obtención y procesamiento de progenitores hematopoyéticos de sangre periférica para terapia celular en enfermedades angiológicas
González Iglesias,Ana Iris; Forrellat Barrios,Mariela; González Suárez,Tania; Salgado Arozena,Odalis; Fernández Delgado,Norma D; Hernández Ramírez,Porfirio; Matamoros Martínez de Pinillos,María de los A; Lam Díaz,Rosa M; Socarrás Ferrer,Berta B; Hernández Rego,Yakima;
Revista Cubana de Hematolog?-a, Inmunolog?-a y Hemoterapia , 2011,
Abstract: the safety and effectiveness of a manual collection method of peripheral blood hematopoietic progenitor cells mobilized by the cuban-made granulocytic colony-stimulating factors (leukocim and hebervital) were evaluated. two hundred patients, who had been selected for the cell therapy at the angiology service of "enrique cabrera" general teaching hospital, were studied. the method designed by the institute of hematology and immunology served to obtain and separate autologous mononuclear cells from the peripheral blood. for the purpose of assessing the efficacy of this method, the variables contents of nucleate cells, of mononucleate cells and of cd 34+ cells were analyzed in the final concentrate. additionally, the cell viability and the microbiological pollution were determined. the efficiency and safety of the collecting and processing method for obtaining one concentrate with adequate content of mononuclear cells and no significant clinical complications was confirmed. the efficacy of the cuban granulocytic colony-stimulating factors was proved. the adverse effects of the mobilization were mild and unrelated to the used stimulating factor.
Propuesta creación Unidad de SEPRONA-Especies protegidas
M. M. González Iglesias
Ecosistemas , 2004,
Abstract:
Estudios sobre la biología y ecología de Ceriodaphnia cornuta SARS: UNA REVISIóN
Villalobos?,Mariela J; González,Ernesto J;
Interciencia , 2006,
Abstract: ceriodaphnia cornuta sars is one out of three most abundant cladocerans in tropical freshwaters, and the only one belonging to the daphniidae family. this crustacean can tolerate low concentrations of dissolved oxygen and high temperature variations, two features that allow it to be widely distributed in the tropical freshwaters. concerning feeding habits, c. cornuta prefers diatoms and green algae. this cladoceran maintains high growth rates under good-quality food conditions as well as in low-quality ones, consuming, in the last case, blue green algae. c. cornuta shows a short embryonary development, high growing rates of juveniles and early sexual maturity; it has low fecundity and high longevity. predation by fish and chaoborus sp. is an interspecific interaction that has inspired very extensive studies about this crustacean. these studies have shown important effects of predation on its abundance and distribution in freshwaters. c. cornuta may show a series of defense mechanisms as a response to predators, among which polymorphism, changes in some life-history parameters and vertical migration are well documented. all of these aspects justify the importance of c. cornuta as a key organism to obtain a better understanding of dynamics and energy transfer in tropical freshwaters.
The nurse teacher. Construction of a new professional identity
Aguayo González,Mariela; Monereo Font,Carles;
Investigación y Educación en Enfermería , 2012,
Abstract: objective. to represent how a new identity is being constructed by nurses initiating their activities as teachers. methodology. in 2010, a descriptive-interpretative qualitative research was conducted of four cases of nurse teachers from nursing schools. aspects of teacher identity and management of critical incidents in the classroom were reviewed. the information was obtained through a structured survey and the data underwent analysis of contents. results. the nurses surveyed state that the teaching exercise is a culmination stage of clinical nursing. teaching confers them stability in their professional life; however, they report that the complexity of the educational practice poses a big challenge. they feel responsible for the formation of future nursing professionals. in spite of defining themselves as constructivists in the way of teaching, they are governed by a technical conception on the way of approaching the educational practice. they attribute the critical incidents to which they are exposed to the types of students entering the universities; these turn out uncomfortable and do not feel responsible for their development. these incidents are lessons to better face similar situations in the future. conclusion. the nurses participating in this study are facing their new role as teachers of human resource, seeking to construct a new identity different from what they had when working in direct care of individuals.
La diversidad familiar en situaciones de exclusión social: Resultados y reflexiones sobre actividades de investigación, formación y transferencia de conocimientos
Delucca,Norma E.; González Oddera,Mariela;
Orientaci?3n y sociedad , 2010,
Abstract: the purpose of this paper is to characterize the configurations of the families that live in contexts of social exclusion; provide conceptualizations of their operation mode; highlight the formative effects that neighborhood interdisciplinary practices with such families produce in the just graduated psychologists, included on the extension program. we wish to contribute to produce systematic knowledge that can account for such family configurations as potential receiver of integration policies. we are also interested on transferring the approach to diversity in the training of young professionals, in order not to be regarded as a deviation from ideal models, but as an expression of different strategies built by members of a community, to resolve children breeding and to bear their existences. this work is the result about reflections on productions inside a research fellowship: the complexities that takes the breeding in families who lives in a social exclusion situation; researches about breeding, carried out from signature developmental psychology ii, and from de interdisciplinary work with psychologically assisted families in twelve suburbs of the city of la plata (university extension program "free legal offices" (convention between law and social sciences and psychology faculties, u.n.l.p.). from a qualitative methodology and an interdisciplinary participation, the results have arrive at the characterization and proposed conceptualizations of the included families and at the same time determine the benefits that brings with the work that articulates research and extension activities for the training of advanced students and young graduates
La flora arvense en huertos de naranjo ‘valencia’ y su relación con las características del suelo en dos municipios del estado Yaracuy, Venezuela Weed populations in ‘Valencia’ orange groves and their relationship with soil characteristics in two municipalities of Yaracuy State, Venezuela
Alvaro Anzalone,Miguel Arizaleta,Mariela González
Bioagro , 2012,
Abstract: Se caracterizó la flora arvense en el cultivo del naranjo ‘Valencia’ en los municipios Bolívar y Manuel Monje del estado Yaracuy, mediante muestreos de malezas en 236 fincas donde se colectó un total de 506 muestras de 0,5 m2 cada una. Se determinaron los parámetros poblacionales de las malezas, la cobertura del suelo y el índice de valor de importancia (IVI) de cada especie. Se dispuso de la información referente a las características del suelo y contenido mineral foliar del cultivo y se realizó una regresión binaria entre la presencia o no de las especies y los parámetros de suelo, así como correlaciones entre la densidad y cobertura del suelo de las malezas más importantes con los parámetros del suelo y cultivo. Se reportaron 103 especies pertenecientes a 25 familias botánicas, con 23 especies representando el 80 % del IVI total. La densidad y cobertura del suelo por malezas fueron de 44,06 plantas·m-2 y 61,8 % respectivamente, y las cinco especies más importantes fueron Cyperus rotundus, Panicum maximun, Cynodon dactylon, Waltheria americana e Ipomoea tiliacea. Se detectó un número bajo de regresiones y correlaciones significativas lo que indica que los factores del suelo estudiados no serían los más determinantes para definir la tendencia de las variables poblacionales de las malezas, pero sugieren relaciones interesantes que pueden posteriormente ser estudiadas de forma más particular. Weed flora in ‘Valencia’ orange groves in Bolivar and Manuel Monje municipalities of Yaracuy State, Venezuela, was characterized. A total of 506 weed samples (0.5 m2 each) coming from 236 citrus farms were evaluated. Weed population parameters, weed ground cover, and importance value index (IVI) of each species were determined. The soil and leaf mineral contents were available and a binary regression was performed between the presence or absence of weed species and soil parameters, as well as correlations between density and ground cover of most important weeds with parameters of soil and crop plants. It was found 103 species belonging to 25 botanical families, with 23 species representing 80% of the total IVI. The density and weed ground cover were 44.06 plants·m-2 and 61.8% respectively. The five most important species were Cyperus rotundus, Panicum maximum, Cynodon dactylon, Waltheria americana, and Ipomoea tiliacea. A low number of significant correlation and regressions were detected, indicating that the evaluated soil characteristics would not be the most important to define the trend of weed population variables, but suggest interesting relationships that can
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