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Search Results: 1 - 10 of 64931 matches for " Juan; Ca?ada Martínez "
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El proyecto EMECAM: estudio multicéntrico espa?ol sobre la relación entre la contaminación atmosférica y la mortalidad. Antecedentes, participantes, objetivos y métodología
Ballester Díez,Ferran; Sáez Zafra,Marc; Alonso Fustel,Ma Eva; Taracido Trunk,Margarita; Ordó?ez Iriarte,José Ma; Aguinaga Ontoso,Inés; Daponte Codina,Antonio; Bellido Blasco,Juan; Guillén Pérez,José Jesús; Pérez Boíllos,Ma José; Caada Martínez,álvaro; Arribas Monzón,Federico; Pérez-Hoyos,Santiago;
Revista Espa?ola de Salud Pública , 1999, DOI: 10.1590/S1135-57271999000200006
Abstract: in recent years, a growing number of studies suggests that increases in pollution levels may have short-term impact on human health, even at pollution levels similar to or lower than those which have been considered to be safe to date. the different methodological approaches and the varying analysis techniques employed have made it difficult to make a direct comparison among all of the findings, preventing any clear conclusions from being drawn. this has led to multicenter projects such as the aphea (short-term impact of air pollution on health. a european approach) within a european scope. the emecam project falls within the context of the aforesaid multicenter studies and has a wide-ranging projection nationwide within spain. fourteen (14) cities throughout spain were included in this project (barcelona, metropolitan area of bilbao, cartagena, castellón, gijón, huelva, madrid, pamplona, seville, oviedo, valencia, vigo, vitoria and saragossa) representing different sociodemographic, climate and environmental situations, adding up to a total of nearly nine million inhabitants. the objective of the emecam project is that to asses the short-term impact of air pollution throughout all of the participating cities on the mortality for all causes, on the population and on individuals over age 70, for respiratory and cardiovascular causes. for this purpose, with an ecological design, the time series data is analyzed taking the deaths rate, pollutants, temperature data and other factors taken from records kept by public institutions as a unit. the period of time throughout which this study was conducted, although not exactly the same for all of the cities involved, runs in all cases from 1990 to 1996. the degree of relationship measured by means of an autoregressive poisson regression. in the future, the results of each city will be combined by means of a meta-analysis.
El proyecto EMECAM: discusión de los resultados en las ciudades participantes
Ballester Díez,Ferran; Sáez Zafra,Marc; Pérez-Hoyos,Santiago; Daponte Codina,Antonio; Bellido Blasco,Juan; Caada Martínez,álvaro; Abad Díez,José Ma; Pérez Boíllos,Ma José; Alonso Fustel,Ma Eva; Taracido Trunk,Margarita; Aguinaga Ontoso,Inés; Jesús Guillén Pérez,José; Ordó?ez Iriarte,José Ma; Saurina Canals,Carme; Tenías Burillo,José Ma;
Revista Espa?ola de Salud Pública , 1999, DOI: 10.1590/S1135-57271999000200021
Abstract: this article draws a comparison and provides a discussion of the findings resulting from the local analyses of the 14 cities participating in the emecam project. an analysis is made of the time series related to mortality, pollutants (particles in suspension, so2, no2, o3 and co), temperature and other factors taken from records of public institutions. by using poisson autoregressive regression, an estimate has been made of the short-term relationship between the number of deaths and the air pollution indicators in each one of the following cities: barcelona, metropolitan area of bilbao, cartagena, castellón, gijón, huelva, madrid, pamplona, seville, oviedo, valencia, vigo, vitoria and saragossa. the findings reveal the air pollution figures in our country to be similar to those of other european cities. the levels of the different pollutants point toward road traffic as being the main source of most of this pollution. a relationship has been found between the mortality and different pollutants in most cities, although the results are not homogeneous among the cities and show variability in the different causes under study. in some cities, especially in those having smaller populations, there have been no findings providing any evidence of a relationship, or the findings themseves are not highly consistent. the meta-analysis will provide estimates for all of the cities as a whole and will allow the possibility of making a more clear-cut assessment of the time lag impact of air pollution on the mortality. worthy of special mention is the participation in this project of public health officiers as actively-involved researchers.
Tratamiento de pacientes parcialmente edéntulos con prótesis dentoimplantosoportadas
Caada Madinazcoitia,L.; Del Río Highsmith,J.; Martínez Vázquez de Parga,J.;
Avances en Periodoncia e Implantología Oral , 2001, DOI: 10.4321/S1699-65852001000100002
Abstract: the problem founded when restoring partially edentulous patients with osseointegrated implants is whether the implants should be connected to, or separated from the natural teeth. this dilemma is caused by the difference in mobility of teeth and osseointegrated implants. brunski reported differences in intrusive stiffness for implants and teeth. however, there are several benefits for implants used in conjunction with natural teeth, which include: reduction of the number of implants needed for restoration, lower cost and maintenance of proprioception. this article presents a review on biomechanical aspects and some considerations of splinting teeth and implants, rigid and no rigid connections between implants and teeth are discussed. there are several areas of interest regarding the connection of implants and natural teeth, wich may provide different amounts of support depending on periodontal status. for a particular clinical situation, the selection of the tipe of the restorative interproximal connection, and quality of implant and teeth support are main issues.
Tratamiento de pacientes parcialmente edéntulos con prótesis dentoimplantosoportadas Treatment of partial edentulous patiens wise prothesis dento implants supported
L. Caada Madinazcoitia,J. Del Río Highsmith,J. Martínez Vázquez de Parga
Avances en Periodoncia e Implantología Oral , 2001,
Abstract: Un problema con el que nos encontramos cuando hacemos la planificación del paciente parcialmente desdentado, es si al colocar los implantes sería correcto unirlos a los dientes adyacentes o no. Este dilema se debe a la diferente movilidad que tienen el diente natural con su ligamento periodontal y el implante osteointegrado. Brunski publicó estas diferencias en intrusión del diente y el implante. Sin embargo, hay numerosos beneficios de unir ambos pilares, entre los que podemos citar: necesitaremos menor número de implantes, lo cual puede ser determinante para poder tratar al paciente o no, tendrá un coste económico menor; se obtendrá una mejor propiocepción de la restauración que si la prótesis es de soporte exclusivamente implantario. En el presente artículo hacemos una amplia revisión bibliográfica que nos indique qué soporte científico hay para poder utilizar clínicamente la conexión diente con implante y, si se puede, cómo debe ser esta unión, rígida o no rígida. Tenemos que tener en cuenta que hay muchas variables a considerar en este tipo de pacientes en los que vamos a unir un diente con un implante, por eso deberemos ser cuidadosos a la hora de extrapolar los resultados publicados a todas las situaciones clínicas que se nos presentan en nuestras consultas, porque la distribución de cargas varía de una forma significativa en función del estado periodontal del diente y del grado de osteointegración del implante. Es decir, para la decisión final de qué tipo de tratamiento debo utilizar, será el clínico el que tendrá que sopesar la situación de los diferentes pilares antes de tomar la decisión final. The problem founded when restoring partially edentulous patients with osseointegrated implants is whether the implants should be connected to, or separated from the natural teeth. This dilemma is caused by the difference in mobility of teeth and osseointegrated implants. Brunski reported differences in intrusive stiffness for implants and teeth. However, there are several benefits for implants used in conjunction with natural teeth, which include: reduction of the number of implants needed for restoration, lower cost and maintenance of proprioception. This article presents a review on biomechanical aspects and some considerations of splinting teeth and implants, rigid and no rigid connections between implants and teeth are discussed. There are several areas of interest regarding the connection of implants and natural teeth, wich may provide different amounts of support depending on periodontal status. For a particular clinical situation, the selection
Efectos a corto plazo de la contaminación atmosférica sobre la mortalidad: resultados del proyecto EMECAM en dos ciudades de Asturias
Caada Martínez Alvaro,García González Jesús Vicente,Rodríguez Suárez Valentín,Fernández Noval Federico
Revista Espa?ola de Salud Pública , 1999,
Abstract: FUNDAMENTO: Los estudios realizados hasta la fecha sobre la posibilidad de que los contaminantes atmosféricos puedan tener efectos sobre la salud no han alcanzado resultados homogéneos. El estudio pretende estimar las medidas de asociación entre los niveles diarios de los contaminantes y la mortalidad a corto plazo en las 2 ciudades más pobladas de Asturias (Gijón y Oviedo), así como contribuir a aumentar el poder estadístico y la representatividad del proyecto EMECAM, en el que se enmarca. MéTODOS: Estudio ecológico de series temporales. Estimación de niveles de exposición colectivos a partir de los valores recogidos en las estaciones de control de la contaminación. Modelado de las series de mortalidad, incluyendo variables de control, mediante regresión de Poisson. Estimación de riesgos relativos de cada contaminante para la mortalidad, controlando la autocorrelación seriada. RESULTADOS: Durante el período 1993-1996 la contaminación por partículas en suspensión y por CO fué superior en Gijón y la debida a SO2 y NO2 fué mayor en Oviedo. En ambas ciudades los niveles pueden considerarse bajos y dentro de lo admitido por la legislación. La mayoría de las estimaciones de riesgos relativos ha estado próxima al efecto nulo, aunque se han observado relaciones significativas tanto positivas (especialmente para NO2) como negativas. Las asociaciones significativas halladas no se han demostrado consistentes en ambas ciudades para los períodos estudiados. CONCLUSIONES: Con los resultados hallados en este estudio no podemos concluir una asociación clara entre los contaminantes estudiados (partículas, SO2, NO2, CO) y la mortalidad a corto plazo, al menos a los niveles detectados en Gijón y Oviedo.
Efecto de algunos agentes físicos y químicos sobre el metacéstodo de Taenia solium presente en carne adobada y chorizo
Rivera-Guerrero,Ma Isabel; Sánchez-Rueda,Leticia; Rodríguez-Bataz,Elvia; Martínez-Villalobos,Ada Nelly; Martínez-Maya,José Juan;
Salud Pública de México , 2004, DOI: 10.1590/S0036-36342004000500008
Abstract: objective: to assess the effect of different cooking times and temperatures, as well as of some seasonings, on the viability of taenia solium metacestodes in spicy meat and hot sausage. material and methods: this study was conducted by the universidad autónoma de guerrero (guerrero state autonomous university), mexico in 1999. infected pork meat was bought in the community of azacoaloya, in the municipality of chilapa de alvarez, guerrero state. it was used to prepare spicy meat (adobada) and hot sausage (chorizo). only the meat in which metacestode viability was proven was used. the products obtained underwent a) room temperature for 12 to 100 hours; b) temperatures of -10 to 37oc for 24 hours; c) boiling (97oc) from 1 to 15 minutes. to determine the effect of the seasonings, batches were prepared using twice the amount of a specific seasoning. trials were done and assessed three times. proportion differences were established using the chi-squared test. results: at room temperature the lowest evagination occurred after 100 hours for both products (p<0.05). after 24 hours, the lowest evagination occurred at -10oc in spicy meat and at 37oc in hot sausage (p<0.05). at boiling temperature there was no evagination after 10 minutes (p<0.05). in spicy meat, adding salt caused the most significant reduction; in hot sausage, thyme caused the most significant reduction (p<0.05). conclusions: meat with metacestodes should not be eaten, yet, it is being sold and used to prepare spicy meats. adding spices can hide the metacestode, thus, adequate cooking of these meat products is necessary. these meats may be consumed at least four days after its preparation and spicy meat after a minimum of four days of refrigeration.
Incidencia de eventos vasculares mayores después de cirugía no cardiaca: impacto del monitoreo perioperatorio con troponina y electrocardiograma
Quiroga,Sandra M; Villar,Juan C; Martínez,Luz X; Chaparro,María S; Ca?ón,Wilson; Camacho,José L;
Revista Colombiana de Cardiología , 2009,
Abstract: introduction: recent demographic changes have led to an increased risk of major vascular events among patients undergoing non-cardiac surgery. troponin and electrocardiogram monitoring would further identify these major vascular events. methods: we prospectively collected data on elegible patients (non-selected individuals aged 45 or older undergoing non-cardiac surgery under general or regional anesthesia in two hospitals in bucaramanga, with expected length of stay longer than 24 hours) during a time-interrupted series, before and after postoperative diagnostic monitoring (blinded assessment of troponin t and electrocardiograms ignoring clinical data). for the period before the intervention (usual clinical care), two independent reviewers extracted clinical information from clinical histories (of all eligible patients from 3 randomly-selected months of 2005). for the period after diagnostic monitoring, we followed 100 consecutive eligible patients. primary outcome was a composite of major vascular events within hospital, including myocardial infarction (defined as any troponin elevation associated with electrocardiographic changes suggesting ischemia, regardless of symptoms). results: we included 534 clinical charts and 100 prospective surgical patients (mean age 62.2, sd 12.9 years; 56% women). the more frequent surgical procedures were orthopedics (26.8%) followed by abdominal (20.2%). the incidence of major vascular events recorded in clinical charts was 2.8%, compared with 7% among monitored patients (p=0,071). all four myocardial infarctions identified among the later group were silent. conclusion: postoperative monitoring with troponin and electrocardiography identified a higher proportion of major vascular events, mainly silent myocardial infarctions.
Fascioliasis, revisión clínico-epidemiológica y diagnóstico
Martínez Sánchez,Raydel; Domenech Ca?ete,Ingrid; Millán Marcelo,Juan Carlos; Pino Santos,Adonis;
Revista Cubana de Higiene y Epidemiolog?-a , 2012,
Abstract: the fascioliasis is a parasitic infection caused by tremadotes of fasciola genre and the more frequent species is fasciola hepatica which is distributed in all continents and to infecting many mammals, including the man. to complete its life cycle, this trematode needs an intermediate host, represented by a mollusk from lymnaeidae family. in cuba two species are known: fossaria cubensis and pseudosuccinea columella. the clinical manifestations are not specific and varied according to the disease phase, acute, latent or chronic. the certainty diagnosis of the human fascioliasis is based in the finding that the parasite eggs present in feces or in duodenal fluid of parasitized individual. other immuno-enzymatic methods have been developed allowing a great approaching to diagnosis of this entity. the epidemiological situation of this parasitosis has change in past years. from 1980 the figure of notifications of infected persons has significantly increase in some zones. in cuba it behaves as an enzootic disease of bovine cattle and account for many loss in livestock and food industries allowing to consider it as a zoonotic disease a great economic significance and of great medical-veterinary interest. yearly human cases are diagnosed like outbreaks or sporadic cases, thus each day the need of attention to prevention and diagnosis of this parasitosis is reinforced.
Fascioliasis, revisión clínico-epidemiológica y diagnóstico Fascioliasis, clinical-epidemiological review and diagnosis
Raydel Martínez Sánchez,Ingrid Domenech Ca?ete,Juan Carlos Millán Marcelo,Adonis Pino Santos
Revista Cubana de Higiene y Epidemiología , 2012,
Abstract: La fascioliasis es una infección parasitaria causada por trematodos del género Fasciola, y la especie más frecuente es Fasciola hepatica, la cual se encuentra distribuida en todos los continentes e infecta a gran cantidad de mamíferos, incluyendo al hombre. Este trematodo requiere, para completar su ciclo de vida, de un hospedero intermediario, representado por un molusco que pertenece a la familia Lymnaeidae. En Cuba se conocen dos especies: Fossaria cubensis y Pseudosuccinea columella. Las manifestaciones clínicas son inespecíficas y varían de acuerdo con la fase de la enfermedad, aguda, latente o crónica. El diagnóstico de certeza de la fascioliasis humana se basa en el hallazgo de los huevos del parásito en las heces o en el fluido duodenal del individuo parasitado. Pero se han desarrollado otros métodos inmunoenzimáticos que han permitido un mayor acercamiento al diagnóstico de esta entidad. La situación epidemiológica de esta parasitosis ha cambiado en los últimos a os. Desde 1980 el número de notificaciones de personas infectadas ha aumentado considerablemente en varias zonas. En Cuba se comporta como una enfermedad enzoótica del ganado bovino y es responsable de importantes pérdidas en las industrias pecuarias y alimenticias lo que nos permite considerarla como la enfermedad zoonótica de mayor importancia económica y de gran interés médico veterinario. Anualmente se diagnostican casos humanos en forma de brotes o casos esporádicos, por lo que cada día más se refuerza la necesidad de que se le brinde atención a la prevención y diagnóstico de esta parasitosis. The fascioliasis is a parasitic infection caused by tremadotes of Fasciola genre and the more frequent species is Fasciola hepatica which is distributed in all continents and to infecting many mammals, including the man. To complete its life cycle, this trematode needs an intermediate host, represented by a mollusk from Lymnaeidae family. In Cuba two species are known: Fossaria cubensis and Pseudosuccinea columella. The clinical manifestations are not specific and varied according to the disease phase, acute, latent or chronic. The certainty diagnosis of the human fascioliasis is based in the finding that the parasite eggs present in feces or in duodenal fluid of parasitized individual. Other immuno-enzymatic methods have been developed allowing a great approaching to diagnosis of this entity. The epidemiological situation of this parasitosis has change in past years. From 1980 the figure of notifications of infected persons has significantly increase in some zones. In Cuba it behaves as an
Clases de nivelación: Un instrumento de apoyo al aprendizaje de matemáticas para la empresa
Roberto J. Ca?avate Bernal,Ma Belén Cobacho Tornel,Juan Francisco Garcerán Martínez,Abilio Milla Hernández
Rect@ , 2002,
Abstract: La ense anza de las Matemáticas como herramienta imprescindible en la formación de los alumnos de las carreras de Diplomatura en Ciencias Empresariales y L.A.D.E. se ve obstaculizada por la heterogeneidad del nivel de conocimientos del alumnado, debida en parte a las distintas formas de acceso a la Universidad vigentes en la actualidad. A esta diversidad de procedencias académicas se le suma, en una gran mayoría de casos, profundas carencias de conocimientos matemáticos previos. éstos son problemas que, si bien no son susceptibles de ser tenidos en cuenta en los planes de estudio, no pueden ser pasados por alto y hacen necesario el planteamiento de posibles soluciones. Con este fin se propone un programa complementario (al margen del plan de estudios vigente) de clases de nivelación en matemáticas, cuyo objetivo primordial es adecuar los conocimientos previos del alumnado a los requerimientos de las asignaturas de Matemáticas en estas carreras. En este trabajo se describe la experiencia docente de los autores en este ámbito, junto con una reflexión sobre la necesidad y adecuación de esta medida para la mejora del aprendizaje en las asignaturas de matemáticas.
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