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Search Results: 1 - 10 of 226525 matches for " Marisé Solórzano R "
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Brote por Klebsiella pneumoniae multiresistente y productora de β-lactamasa de espectro extendido en una unidad de alto riesgo neonatal Outbreak of multiresistant and extended spectrum β-lactamase producing Klebsiella pneumoniae in a high risk neonatal unit
A. Carolina González R,Florimar Gil G,Marisé Solórzano R,Jhon Cruz G
Revista chilena de infectología , 2011,
Abstract: Klebsiella pneumoniae productora de β-lactamasa de espectro expandido (BLEE) ha jugado un papel importante como causa de infecciones en la unidad de alto riesgo neonatal (UARN) del Instituto Autónomo Hospital Universitario de Los Andes (IAHULA). En el presente trabajo se describe un brote ocasionado por esta bacteria en los neonatos hospitalizados en dicha unidad durante el mes de febrero 2007, así como también, cepas aisladas en los meses siguientes al brote y además, se estudia el ambiente y el personal, como posible fuente de esta bacteria. Las cepas de K. pneumoniae aisladas del brote eran del mismo fenotipo de resistencia, productoras de (3LEE tipo TEM y SHV y pertenecían al mismo genotipo que las cepas aisladas de las manos y de las soluciones jabonosas, posible fuente de infección, lo cual indica que se trataba del mismo clon. El brote se resolvió usando dos importantes medidas: reforzando el lavado de manos y con la indicación oportuna de imipenem a los neonatos afectados. Klebsiella pneumoniae as a producer of extended spectrum beta-lactamase (ESBL) has played an important role as a cause of infection in the neonatal high risk unit (NHRU) of the Autonomous Hospital Institute of the Universidad de Los Andes (AHIULA). In this paper an outbreak caused by this bacterial specie that affected neonates hospitalized in this unit during February 2007 is described. Besides, the environment and the personnel were studied as possible sources of this organism. The strains of K. pneumonia isolated from the outbreak had the same resistance phenotype, produced ESBL type TEM and SHV and belonged to the same genotype as the isolated strains from the hands and the soapy solutions, possible sources of infection. This indicates that it was the same clone. The outbreak was resolved using two important measurements: reinforcing hand washing and with the opportune treatment of neonates with imipenem.
Brote por Klebsiella pneumoniae multiresistente y productora de β-lactamasa de espectro extendido en una unidad de alto riesgo neonatal
González R,A. Carolina; Gil G,Florimar; Solórzano R,Marisé; Cruz G,Jhon; Puig P,Juan; Suárez S,Marlene; Nieves B,Beatríz;
Revista chilena de infectología , 2011, DOI: 10.4067/S0716-10182011000100005
Abstract: klebsiella pneumoniae as a producer of extended spectrum beta-lactamase (esbl) has played an important role as a cause of infection in the neonatal high risk unit (nhru) of the autonomous hospital institute of the universidad de los andes (ahiula). in this paper an outbreak caused by this bacterial specie that affected neonates hospitalized in this unit during february 2007 is described. besides, the environment and the personnel were studied as possible sources of this organism. the strains of k. pneumonia isolated from the outbreak had the same resistance phenotype, produced esbl type tem and shv and belonged to the same genotype as the isolated strains from the hands and the soapy solutions, possible sources of infection. this indicates that it was the same clone. the outbreak was resolved using two important measurements: reinforcing hand washing and with the opportune treatment of neonates with imipenem.
CULTURA ORGANIZACIONAL Y POSMODERNIDAD. UNA APROXIMACIóN AL CASO VENEZUELA
Fredy R. Vallenilla Solórzano
Revista Negotium , 2006,
Abstract: The aim of this work is to approach the study of the Organizational Culture and Postmodernism. Yes, we could talk about a post Modernistic Organizational Culture, and how these concepts could be interpreted in some Venezuelan organizations. Hence, a descriptive-documental research is in course. There bibliographic sources on this subject are studied. It is clear the Organizational Culture concept, but the Postmodernism concept is not, because of the contrast between theoretical positions resulting in contradictory and excluding issues. This makes difficult the characterization of a Post modernistic-Organizational Culture. Organizations like Procter & Gamble and the Electricity de Caracas have an Organizational Culture which is characteristic of private firms, centered basically to be accordingly to new eras and changing markets. Petroleos de Venezuela, traditionally dedicated to the oil business, since 1999, due to the new politic scenery, undertakes other responsibilities aimed to enhance Venezuelan Social Indicators.
Actividad hipoglucemiante de Chamaedorea tepejilote Liebm. (pacaya) Hypoglycemic activity of Chamaedorea tepejilote Liebm. (pacaya)
Davinson J Riquett Robles,Erwin R Solórzano Carranza
Revista Cubana de Plantas Medicinales , 2013,
Abstract: Introducción: Chamaedorea tepejilote Liebm. es originaria de México, América Central, Panamá y el litoral pacífico de Colombia. En Centroamérica se le llama pacaya a esta palma y es un alimento tradicional de fuerte arraigo en Guatemala, El Salvador y Honduras. Hasta el momento, la única utilidad que se conoce de las inflorescencias de la pacaya es la de alimento tradicional, sin embargo, algunas personas le atribuyen cualidades medicinales. Objetivos: obtener y evaluar la actividad hipoglicemiante del extracto acuoso liofilizado de las inflorescencias masculinas de Chamaedorea tepejilote Liebm. Métodos: se estudió el efecto de Chamaedorea tepejilote (pacaya) sobre la glicemia de ratones normales. Se midió el efecto hipoglicemiante que tiene la administración intraperitoneal de diferentes dosis del extracto de la especie (100, 200 y 300 mg/kg) en muestras de sangre extraídas de la vena caudal a las 2, 6 y 24 h de haber sido administrado. Resultados: la administración de 300 mg/kg del extracto de Chamaedorea tepejilote en ratones normoglucémicos redujo la glucosa sanguínea en 29,77 %. Conclusiones: se confirma la actividad hipoglicemiante de esta planta usada en la medicina tradicional para el tratamiento de la diabetes. Introduction: Chamaedorea tepejilote Liebm. is native from Mexico, Central America, Panama and the Pacific Coast of Colombia. This palm called pacaya in Central America is a traditional food of strong roots in Guatemala, El Salvador and Honduras. The only use of the inflorescences of the pacaya that is so far known is traditional food; however, some people attribute some medicinal qualities to them. Objectives: to obtain and to evaluate the hypoglycemic activity of dried aqueous extract of male inflorescences of Chamaedorea tepejilote Liebm. Methods: the effect of Chamaedorea tepejilote (Pacaya) on the glycemia of normal mice was studied. The hypoglycemic effect of intraperitoneal dose of the extract (100, 200 y 300 mg/kg) in blood samples taken from the tail vein at 2, 6 and 24 h was measured after administration. Results: the administration of 300 mg/kg of Chamaedorea tepejilote extract to normal mice reduced blood glucose levels by 29.77 %. Conclusions: the hypoglycemic effect of this plant extract that is used in traditional medicine for diabetes treatment was confirmed.
Exploring Future Impacts of Environmental Constraints on Human Development
Barry B. Hughes,Mohammod T. Irfan,Jonathan D. Moyer,Dale S. Rothman,José R. Solórzano
Sustainability , 2012, DOI: 10.3390/su4050958
Abstract: Environmental constraints have always had, and will always have, important consequences for human development. They have sometimes contributed to, or even caused, the reversal of such development. The possibility that such constraints, including climate change, will grow significantly this century raises the concern that the very significant advances in human development across most of the world in recent decades will slow or even reverse. We use the International Futures (IFs) integrated forecasting system to explore three scenarios: a Base Case scenario, an Environmental Challenge scenario, and an Environmental Disaster scenario. Our purpose is to consider the impact of different aspects and levels of environmental constraint on the course of future human development. Using the Human Development Index (HDI) and its separate components as our key measures of development, we find that environmental constraints could indeed greatly slow progress and even, in disastrous conditions, begin to reverse it. Least developed countries are most vulnerable in relative terms, while middle-income countries can suffer the greatest absolute impact of constraints, and more developed countries are most resilient. Education’s advance is the aspect of development tapped by the HDI that is most likely to continue even in the face of tightening environmental constraints, and that is one reason why human development shows great momentum even in the face of environmental?challenges.
Estudio de las características individualizantes de las rugas palatinas. Caso: Bomberos de la Universidad de Los Andes Mérida - Venezuela
Espa?a,L.; Paris,A.; Florido,R.; Arteaga,F.; Solórzano,E.;
Cuadernos de Medicina Forense , 2010, DOI: 10.4321/S1135-76062010000300003
Abstract: rugoscopy is a safe and low cost method that can be used as an alternative technique in the identification of persons and the recognition of bodies which cannot be identified due to various reasons. the objective of this research was to apply a rugoscopy card in a sample of twenty (20) firefighters of the fire department of los andes university in the state of merida, and to create a database of high risk cases taken from the individualizing characteristics of palatal rugaes. we used a rugoscopy card designed and validated in this investigation, as well as, study models of maxillary and intraoral photographs. through the analysis of 266 palatal rugae, shapes and different numbers in each individual were determined, allowing their identification anywhere in the world. we conclude that rugoscopy is a simple method and easily applicable in the dental office, which allows the identification of any person from the individualizing characteristics of the palatal rugae.
Turbulence modeling in the numerical estimation of hemolysis in hemodialysis cannulae
Salazar,Félix A; Rojas-Solórzano,Luis R; Blanco,Armando J;
Revista de la Facultad de Ingeniería Universidad Central de Venezuela , 2008,
Abstract: in recent years, cfd has become an increasingly used tool in the design of blood-based devices. particularly, the estimation of red blood cells damage (hemolysis) becomes a very important challenge to cfd scientists since the blood is a complex fluid present in turbulent regime in most pumping devices. thus, previous cfd studies on blood hemolysis lack of appropriate turbulence modeling and consequently, reliable relationships between hydraulic results and hematological responses. cannula geometries were studied to numerically assess a relatively simple flow with well documented laboratory hematological data. for benchmarking purposes, numerical data from a coaxial jet array direct numerical simulation (dns) was used in the selection of the most appropriate and economical turbulence model to be used in the cannula numerical analysis. velocity and stress time-averaged profiles were compared between dns results and rans simulations with different turbulence models. these results, pointed to the shear stress transport with gamma-theta transition model as the appropriate turbulence model in that geometry. accurate and reliable hydrodynamic cfd results were obtained for the cannula as an important previous step to the study and development of further hematological calculations with a minimum degree of uncertainty in the flow field. these hematological calculations led to interesting results about the important role played by turbulence modeling in hemolysis estimation.
Microbiología de la peritonitis secundaria adquirida en la comunidad, Clínica CES Microbiology of community acquired secondary peritonitis at Clinica CES, Medellín, Colombia
Sergio Díaz,Diana Carolina Ríos,Felipe Solórzano,Carlos Andrés Calle
Revista Colombiana de Cirugía , 2012,
Abstract: Introducción. La toma de cultivos durante la primera intervención quirúrgica en pacientes operados por peritonitis es controvertida, pues su utilidad clínica es limitada, excepto en el ámbito epidemiológico. Se llevó a cabo este trabajo con el objetivo de describir los gérmenes aerobios más frecuentemente encontrados en la peritonitis secundaria, adquirida en la comunidad, y determinar su resistencia a los antibióticos usados más comúnmente en forma empírica. Materiales y métodos. Se trata de un estudio descriptivo, retrospectivo, realizado en la Clínica CES de Medellín, en pacientes operados entre enero de 2005 y abril de 2010, con diagnóstico de peritonitis secundaria. Se analizó el resultado del cultivo tomado en la primera cirugía. Resultados. Se revisaron 319 historias. De ellas, 83 cumplían los criterios de inclusión. La principal causa de peritonitis fue la apendicitis aguda (26 %). En el 49 % de los cultivos no creció ningún germen. Cuando hubo crecimiento, el germen aislado con mayor frecuencia fue Escherichia coli (24 %). La resistencia al antibiótico usado en forma empírica fue de 16 %. Escherichia coli presentó altas resistencias a trimetoprim-sulfametoxazol, ampicilina, ampicilina-sulbactam, ciprofloxacina y gentamicina. Discusión. La toma de cultivos aerobios durante la primera intervención quirúrgica, no modifica el tratamiento antibiótico definitivo de los pacientes y con mucha frecuencia no se obtiene aislamiento. Se encontraron altas tasas de resistencia a trimetoprim-sulfametoxazol, ampicilina, ampicilina-sulbactam, ciprofloxacina y gentamicina, por lo cual no deben usarse en forma empírica. La toma de cultivos se recomienda para la identificación de la flora local y su perfil de resistencia. Introduction: Taking peritoneal fluid cultures during the first surgical intervention in patients with peritonitis is controversial due to its limited clinical utility. It is useful only in epidemiological studies. Our work was done in order to determine which bacteria are more commonly found in community acquired secondary peritonitis and to disclose the resistance patterns of these pathogens to the more commonly used antibiotics at our institution. Materials and methods: Retrospective and descriptive study done in Medellín, Colombia, at Clínica CES on patients that underwent surgery for secondary peritonitis from January 2005 through April 2010. Culture samples analyzed were the ones taken in the first surgical intervention. Results: We reviewed 319 clinical charts; among these, only 83 met the inclusion criteria. The principal cause of periton
Modelado físico de la incidencia de un chorro de aire sobre una superficie de agua
Solórzano-López, J.,Ramírez-Argáez, M. A.,Zenit, R.
Revista de Metalurgia , 2010,
Abstract: The use of gas jets (oxygen) plays a key role in several steelmaking processes as in the Basic Oxygen Furnace (BOF) or in the Electric Arc Furnace (EAF). Those jets improve heat, mass and momentum transfer in the liquid metal, mixing of chemical species enhancing and govern the formation of foaming slag. In this work experimental measurements were performed to determine the dimensions of the cavity formed at the liquid free surface caused by a gas jet impinging on it; also velocities vectors were measured in the zone affected by the gas jet. Cavities were measured from images from high speed camera and the vector maps were obtained with a Particle Image Velocimetry (PIV) technique. Both velocities and cavities were determined as a function of the main process variables: gas flow rate, distance of the nozzle from the free surface and lance angle. Cavity dimensions were statistically processed treated as a function of the process variables and also as a function of the proper dimensionless numbers that govern these phenomena. It was found thatWeber and Froude numbers govern the cavity geometry. Liquid flow driven by the jet is mainly affected by the air flow rate, lance height and angle. El uso de chorros de gas (oxígeno) es fundamental en diversos procesos de aceración, como el Horno Básico de Oxígeno (BOF, por sus siglas en inglés) o en el Horno Eléctrico de Arco (EAF). Estos chorros mejoran la transferencia de calor, masa y cantidad de movimiento en el metal y el mezclado de especies y son muy importantes en la formación de escoria espumosa. En este trabajo, se realizaron mediciones experimentales de las dimensiones de la cavidad formada en la superficie líquida por la incidencia de un chorro, así como también se obtuvieron vectores de velocidad en la zona aleda a a dicha cavidad. éstas, se midieron usando una cámara de alta velocidad, mientras que los mapas vectoriales se obtuvieron por la técnica PIV (Particle Image Velocimetry). Las velocidades y las dimensiones de las cavidades se determinaron como función de las principales variables de proceso: flujo de gas, distancia entre tobera y superficie libre, diámetro de tobera y ángulo de lanza. Las dimensiones de la cavidad se procesaron estadísticamente, como función de las variables de proceso y como función de los números adimensionales que lo gobiernan. En este caso, el número de Froude junto con el deWeber controlan la geometría de la depresión. El flujo en el seno del líquido es principalmente afectado por el flujo de aire, la altura y el ángulo de la lanza.
The Canadian health system and its financing
Solórzano,Francisco Xavier;
Revista Panamericana de Salud Pública , 1997, DOI: 10.1590/S1020-49891997000700005
Abstract: this work stems from a brief visit in 1993 to the canadian health services as part of the paho international health training program and the subsequent research, discussion, and analysis relating to that experience. by no means is this paper an exhaustive account of the system, but rather a close look at one of its aspects: financing. the main objective is to identify some of the virtues and limitations of a health system that is considered one of the most efficient, effective, and equitable in the world. although the canadian health system is financed by the federal government and the provincial governments, cost containment is a constant concern, since factors such as the growing use of highly complex technologies, hospital care, and long-term treatment of chronic and degenerative illnesses tend to increase costs. the progressive reduction in the federal budget has led to more efficient use of resources and the rationalization of installed capacity. at the same time, the relative simplicity of the system?s operation has permitted administrative costs to be kept low. in addition, alternative forms of care, such as local centers for community-based care, care at home and in special institutions to promote the maximum level of self-sufficiency, and the use of volunteers, have been devised in order to partially control cost increases. the people?s participation in planning and decision-making permit them to guide the development of the health services. nevertheless, given the current situation, it is essential that the system be modified to prepare it for the challenges the twenty-first century will bring.
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