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Search Results: 1 - 10 of 7877 matches for " Beatriz Henao Murillo "
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Actividad insecticida de una emulsión aceite/agua del aceite esencial de Eucalyptus tereticornis Insecticide activity of oil/water emulsion of Eucalyptus tereticornis essential oil
Walter Murillo-Arango,Pedronel Araque Marín,Beatriz Henao Murillo,Carlos A Peláez Jaramillo
Revista Cubana de Plantas Medicinales , 2013,
Abstract: Introducción: el aceite esencial extraído de especies del género Eucalyptus, entre estas Eucalyptus tereticornis, ofrece un importante potencial para el control de hongos patógenos e insectos plaga y de importancia médica. Objetivo: evaluar la actividad anti-insecto (aguda, crónica y repelente) de una emulsión aceite/agua del aceite esencial de Eucalyptus tereticornis, en función de su composición química y fraccionamiento. Métodos: se prepararon emulsiones aceite/agua con aceite esencial previamente extraído, separado y caracterizado, y 2 de sus fracciones (A y B). Se evaluó su actividad anti-insecto mediante bioensayos con Drosophila melanogaster. Se determinó la fitotoxicidad foliar sobre plántulas de Phaseolus vulgaris. Resultados: el aceite completo mostró considerable actividad repelente e insecticida aguda que guarda relación con su composición química. La actividad insecticida aguda de las fracciones disminuyó de manera notable con respecto a la mostrada por el aceite completo, sin embargo, no se observaron efectos significativos sobre la actividad repelente. En ningún caso se presentó fitotoxicidad foliar sobre frijol. Conclusión: el aceite esencial de esta especie de eucalipto posee actividad anti-insecto considerable y podría formularse directamente como insecticida para el control de insectos de interés agrícola y médico. Introduction: the essential oil extracted from Eucalyptus species, including Eucalyptus tereticornis, offers significant potential for control of fungal pathogens and insect pests and medical importance. Objectives: to evaluate the anti-insect activity (acute, chronic and repellent) of an oil/water emulsion of Eucalyptus tereticornis essential oil in terms of their chemical composition. Methods: oil/water emulsion was prepared with essential oil previously extracted, separated and characterized, and two of its fractions (A and B). Their anti-insect activity was evaluated through bioassays on Drosophila melanogaster. Foliar phytotoxicity was evaluated on seedlings of Phaseolus vulgaris. Results: the complete oil showed considerable acute repellent and insecticide activity related to its chemical composition. The acute insecticidal activity of the fractions decreased significantly if compare with that of the whole oil , but neither significant effects on the repellent activity nor phytotoxicity on the bean leaves were observed. Conclusions: the essential oil of this eucalyptus species has considerable anti-insect properties and could be formulated as an insecticide for the control of insects of agricultural and medical signif
Source Apportionment of PM2.5 in the Metropolitan Area of Costa Rica Using Receptor Models  [PDF]
Jorge Herrera Murillo, Susana Rodríguez Roman, José Félix Rojas Marín, Beatriz Cardenas
Atmospheric and Climate Sciences (ACS) , 2013, DOI: 10.4236/acs.2013.34059
Abstract:

In this work, receptor models were used to identify the PM2.5 sources and its contribution to the air quality in residential, comercial and industrial sampling sites in the Metropolitan Area of Costa Rica. Principal component analysis with absolute principal component scores (PCA-APCS), UNIMX and positive matrix factorization (PMF) was applied to analyze the data collected during 1 year of sampling campaign (2010-2011). The PM2.5 samples were characterized through its composition looking for trace elements, inorganic ions and organic and elemental carbon. These three models identified some common sources of PM2.5: marine aerosol, crustal material, traffic, secondary aerosols (secondary sulfate and secondary nitrate resolved by PMF), a mixed source of heavy fuels combustion and biomass burning, and industrial emissions. The three models predicted that the major sources of PM2.5 in the Metropolitan Area of Costa Rica were related to anthropogenic sources (73%, 65% and 69%, respectively, for PCA-APCS, Unmix and PMF) although natural sources also contributed to PM2.5 (21%, 24% and 26%). On average, PCA and PMF methods resolved 94% and 95% of the PM2.5 mass concentrations, respectively. The results were comparable to the estimate using

Herramienta para el cálculo de personal de cuidado intensivo neonatal
Rojas,Juan Guillermo; Henao-Murillo,Natalia Andrea; Quirós-Jaramillo,Alexandra;
Aquichán , 2011,
Abstract: nursing care management implies the use of methods and tools that make it possible, in a practical way, to estimate the patient's needs and to help plan the respective human and technical resources and requirements. objective: to identify the usefulness of the ntiss (neonatal therapeutic intervention scoring system) in calculating the nursing staff for the neonatal intensive care unit and the neonatal intermediate care unit at the clínica universitaria bolivariana (bolivarian university clinic) in medellín, colombia. methodo: this is a cross-sectional, descriptive study conducted in april 2007. the sample was comprised of the neonates admitted to and hospitalized in both facilities. the instrument was applied at the end of every shift. a sample with 384 instruments was calculated (unknown ratio and a reliability interval of 0.5). cronbach's alpha was used to measure the internal consistency of the instrument (0.8). results: a total of 425 instruments were completed and collected for 22 neonates. respiratory illnesses were the most frequent pathology. the total score of the ntiss analyzed for the study was 5200, with an average of 12.3, which is equivalent to 123 minutes of nursing work per six-hour shift. as for the total number of interventions, 62% are assigned to nurses, 22% to auxiliary nurses and 16% to respiratory therapists. it was estimated that four nurses are required for every six-hour shift in the neonatal intensive care unit and the neonatal intermediate care unit. conclusions: ntiss is a useful tool to estimate the nursing staff and to help improve processes for nursing care management.
Herramienta para el cálculo de personal de cuidado intensivo neonatal
Juan Guillermo Rojas,Natalia Andrea Henao-Murillo,Alexandra Quirós-Jaramillo
Aquichán , 2011,
Abstract: La gestión del cuidado de enfermería supone la utilización de métodos y herramientas que de manera práctica permitan una aproximación a las necesidades de cuidado de los pacientes y ayuden a planear los requerimientos humanos y técnicos para tal fin. Objetivo: identificar la utilidad del Neonatal Therapeutic Intervention Scoring System (NTISS) en el cálculo de personal de enfermería en la unidad de cuidado intensivo (UCIN) e intermedio neonatal (UCEN) de la Clínica Universitaria Bolivariana (CUB) en Medellín, Colombia. Método: estudio descriptivo, transversal, realizado durante el mes de abril de 2007. La población estuvo conformada por los neonatos ingresados y hospitalizados en la UCIN y UCEN, para lo que fue necesario aplicar el instrumento al final de cada turno. Se calculó una muestra de 384 instrumentos (proporción desconocida y un intervalo de confianza de 0,5). La consistencia interna del instrumento se determinó con el alfa de Cronbach (0,8). Resultados: se recolectaron 425 instrumentos diligenciados de 22 neonatos. Las patologías más frecuentes fueron las de tipo respiratorio. El puntaje total de los NTISS analizados fue de 5.200 puntos, con un promedio de 12,3, equivalentes a 123 minutos de trabajo de enfermería por turno de 6 horas. Del total de intervenciones el 62% están asignadas a las enfermeras, el 22% a las auxiliares de enfermería y el 16% a terapia respiratoria. Se calculó el requerimiento de 4 enfermeras por turno en la UCIN y UCEN. Conclusiones: el NTISS es útil para la asignación y el cálculo del personal de enfermería y contribuye a mejorar los procesos de gestión del cuidado.
The Relationship between Domestic Violence and Reproductive Health and Family Planning Services in Bolivia, 2003
Pinto Aguirre, Guido,Kincaid, Mary,Murillo Gutiérrez, Beatriz
Población y Salud en Mesoamérica , 2010,
Abstract: The main purpose of this paper is to understand the relationship existing between Gender-Based Violence (GVB) and the Use of Reproductive Health and Family Planning services. To carry out this task, we use multivariate logit regression models to explore the direction and strength of the relationship, using a population-based sample for Bolivian women during 2003-2004. Results show a strong, negative and significant relationship between GVB and use of RH/FP services at the population-level, after adjusting for respondent’s and partner’s individual and household characteristics. That is, GBV is strongly and significantly associated with the use of RH/FP services, in a way that women experiencing domestic violence are less likely to use those services.
Papel del personal de salud en el diagnóstico tardío de la tuberculosis pulmonar en adultos de Medellín, Colombia
Gaviria,Marta Beatriz; Henao,Hanna Marisol; Martínez,Teresita; Bernal,Elisa;
Revista Panamericana de Salud Pública , 2010, DOI: 10.1590/S1020-49892010000200001
Abstract: objective: to describe the role of health care providers in the delayed diagnosis of pulmonary tuberculosis (ptb) among the adult population in a city in colombia. methods: a case study of ptb diagnosis among adults in the city of medellín, colombia, in 2007. quantitative and qualitative data were collected through in-depth interviews with 19 patients (11 with early diagnosis and 8 with late diagnosis), from medical records, and by a survey of ptb-related knowledge and practices among 89 doctors and nurses at health care clinics. a research workshop was held with patients to share the results and validate new categories. results: a lack of ptb knowledge and patient stereotyping were found to lead to misinterpretation of symptoms and the use of symptomatic treatments. the lack of knowledge regarding risk factors and clinical protocols made diagnosis difficult when the patient did not match the stereotype or presented with a more well-known illness. misinformation on ptb transmission and inappropriate measures led to discriminatory practices and social isolation and only reinforced stereotypes and stigma, which in turn discouraged the quest for medical attention. conclusions: health care providers played a large part in the late diagnosis of ptb in the adults studied. beliefs regarding social stigma and a lack of knowledge about the disease-shared by providers and patients-contributed to stereotyping of the illness and the disease-carrier, and limited the probability of an early diagnosis of ptb.
Ethanol Consumption by Wistar Rat Dams Affects Selenium Bioavailability and Antioxidant Balance in Their Progeny
María Luisa Ojeda,Beatriz Vázquez,Fátima Nogales,María Luisa Murillo,Olimpia Carreras
International Journal of Environmental Research and Public Health , 2009, DOI: 10.3390/ijerph6082139
Abstract: Ethanol consumption affects maternal nutrition, the mothers’ antioxidant balance and the future health of their progeny. Selenium (Se) is a trace element cofactor of the enzyme glutathione peroxidase (GPx). We will study the effect of ethanol on Se bioavailability in dams and in their progeny. We have used three experimental groups of dams: control, chronic ethanol and pair-fed; and three groups of pups. Se levels were measured by graphite-furnace atomic absorption spectrometry. Serum and hepatic GPx activity was determined by spectrometry. We have concluded that ethanol decreased Se retention in dams, affecting their tissue Se deposits and those of their offspring, while also compromising their progeny’s weight and oxidation balance. These effects of ethanol are caused by a reduction in Se intake and a direct alcohol-generated oxidation action.
Displasia diastrófica: Caracterización clínica, radiológica, citogenética y molecular de una paciente Diastrophic dysplasia: clinical, radiological, cytogenetic and molecular characterization of a patient
José Luis Ramírez Castro,Alicia María Cock Rada,Beatriz Eugenia Mora Henao,Gloria C. Ramírez Gaviria
Iatreia , 2005,
Abstract: La displasia diastrófica (DTD) es un tipo de osteocondrodisplasia congénita con un patrón de herencia autosómico recesivo, descrita inicialmente por Lamy y Maroteaux en 1960. Se caracteriza por marcada disminución de la talla, normocefalia, micromelia, cifoescoliosis, paladar hendido, quistes del pabellón auricular, pie equino varo, contracturas articulares y pulgares abducidos. Durante el período neonatal la mortalidad es alta (25%), generalmente causada por obstrucción de la vía aérea. Si los pacientes sobreviven a dicho período, el pronóstico es bueno. El desarrollo mental y sexual es normal. En 1991 Hastbacka et al. identificaron el locus de la DTD en la región 5q31-q34. En 1996 el Treacher Collins Syndrome Collaborative Group ubicó el gen DTDST en la región 5q32-q33.1. Este gen codifica una proteína transportadora de sulfato, cuya alteración conduce a la formación de proteoglicanos poco sulfatados en la matriz cartilaginosa. Presentamos una paciente que reúne las características fenotípicas y radiológicas de esta entidad. En el estudio molecular (Hospital Necker, París) se identificaron dos mutaciones en el gen DTDST; una mutación nueva y la otra ya descrita en la literatura. Diastrophic dysplasia is an osteochondrodysplasia that is inherited in an autosomal recessive pattern. It was first described by Lamy and Maroteaux in 1960. This disorder is characterized by short stature, normal head size, micromelia, kyphoscoliosis, cleft palate, cystic masses in auricles, talipes equinovarus, joint contractures and abduction of thumbs (“hitchhiker thumbs”). During the neonatal period mortality is high (25%), generally due to respiratory obstruction. For those who survive, prognosis is usually good. Intelligence and sexual development are normal. In 1991 H stbacka et al. identified the DTD locus in the 5q31-q34 region. In 1996 the Treacher Collins Syndrome Collaborative Group showed that the gene is located on 5q32-q33.1. The DTDST gene encodes a sulphate transporter, whose alteration results in the production of undersulphated proteoglycans in the cartilage matrix. We present a female patient who shows the phenotypic and radiologic characteristics of this disorder. Molecular studies (Necker Hospital, Paris) identified two mutations in the DTDST gene: one previously reported in the literature and a novel mutation.
Caracteriza??o físico-química e aminas bioativas em vinhos da cv. Syrah I: efeito do ciclo de produ??o
Mota, Renata Vieira da;Amorim, Daniel Angelucci de;Fávero, Ana Carolina;Gloria, Maria Beatriz Abreu;Regina, Murillo de Albuquerque;
Ciência e Tecnologia de Alimentos , 2009, DOI: 10.1590/S0101-20612009000200023
Abstract: the systematic incidence of rainfall or overcast conditions and high temperatures impair grapes maturation and sanity. recent studies show that vine growing season alteration through pruning enables berries harvest in climatic conditions more favorable to fruit maturation and that vines respond to pruning with acceptable yield levels. under these conditions, the objective of the present work was to evaluate the physico-chemical characteristics of syrah wine from winter and summer vintages of 2005 and 2006 cultivated in the city of três cora??es, state of minas gerais, brazil. the winter wine from the 2005 vegetative cycle showed higher values of ph (3.91 × 3.59), total polyphenols (49.2 × 32.5), color intensity (10.75 × 5.68), anthocyanins (121.48 × 41.09 mg.l-1), total phenols (2.06 × 1.21 g.l-1), alcohol (12.65 × 10.78% v/v), and bioactive amines (10.36 × 4.46 mg.l-1) when compared to the summer wine. similar results were observed for winter and summer wines from the 2006 vintage. winter wines showed higher levels of phenolic compounds, which means better quality and aging potential. however, grapes cultivation under dry weather conditions and high ph contributed to increase bioactive amines levels. such evolution should be followed during vinification to avoid toxicological risk.
EVALUACIóN DE LAS ESTRATEGIAS PRODUCTIVAS DE ALGUNOS SISTEMAS CAMPESINOS EN UN áREA DEL MUNICIPIO DE ALCALá, VALLE DEL CAUCA
ANDRéS FELIPE CARVAJAL V.,BEATRIZ ELENA MURILLO L.,ALEXANDER FEIJOO M.,MARIA CONSTANZA ZU?IGA T.
Scientia Et Technica , 2005,
Abstract: En algunas fincas del municipio de Alcalá se evaluó la estructura económica y los procesos de gestión de algunos recursos. Esto se logró por medio de la descripción de los subsistemas de los predios, la construcción de balances económicos, la valoración de los bienes de autoconsumo y la categorización de las fincas de acuerdo con la metodología de líneas de pobreza que utiliza el DANE. Esto permitió demostrar que en las zonas rurales existen diferentes estrategias productivas que varían de acuerdo con la disponibilidad de terreno y capital; y a los valores relacionados con la satisfacción personal y la tradición familiar de cada productor.
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