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Search Results: 1 - 10 of 606131 matches for " R.; García Vera "
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Implementación de una metodología para evaluar la adhesión de recubrimientos
U. Piratoba,O. Fernández,R. García,E. Vera
DYNA , 2004,
Abstract: La calidad y protección de los recubrimientos sobre diferentes tipos de superficies, depende primordialmente de su adhesión. Se implementó una nueva metodología para la evaluación cuantitativa de dicha propiedad, para lo cual se construyó un equipo que incluye: un sistema mecánico tipo PULL OFF con motor paso a paso y reductor de velocidad; un sensor de carga tipo Tedea Huntleigh; un detector de proximidad inductivo y un sistema de adquisición y procesamiento de datos basado en instrumentación virtual. Se presentan y discuten algunos resultados de la evaluación de la adherencia de recubrimientos industriales de tipo polimérico, sobre películas delgadas depositadas por métodos galvanoplásticos.
Improving the Electrical Parameters of a Photovoltaic Panel by Means of an Induced or Forced Air Stream
R. Mazón-Hernández,J. R. García-Cascales,F. Vera-García,A. S. Káiser
International Journal of Photoenergy , 2013, DOI: 10.1155/2013/830968
Angimiolipoma renal como causa de shock hemorrágico agudo
López Fernández,A.; Lacasta García,J.D.; Puig Giro,R.; Vicente de Vera,P.;
Actas Urológicas Espa?olas , 2008, DOI: 10.4321/S0210-48062008000800015
Abstract: this is a case of retroperitoneal hematoma and hypovolemic shock as a presentation of renal angiomyolipoma, a rarely benign and asymptomatic tumor. the massive and spontaneous bleeding of the tumor was diagnosed by an abdominal ecography and confirmed by an abdominal computer tomography in the emergency room. although that kind of tumor needs non-aggressive treatment, as a general rule, because of the size and severity of the following symptoms, the patient has been submitted to a selective embolization of the renal mass when he was hemodinamically stabilized. the evolution was favorable; it was not necessary to do more aggressive surgical handling neither to urgently remove the angiomyolipoma.
Caracterización de personas lesionadas en accidentes de tránsito ocurridos en Medellín y atendidas en un hospital de tercer nivel, 1999-2008
García G,Héctor I; Vera G,Claudia Y; Zuluaga R,Lina M; Gallego L,Yenny A;
Revista Facultad Nacional de Salud Pública , 2010,
Abstract: traffic accidents are a social and public health problem all over the world that output injured people which become susceptible to suffering disability, psychological damage or death representing a high economic cost. there are just a few researches about morbidity and severity of injured people in medellín. objective: to describe the characteristics of people, time, place and vehicle in traffic accidents in medellín that were assisted in a general hospital between 1999 and 2008. methodology: retrospective descriptive study with data taken from the unique claim form managed by the mandatory insurance for traffic accidents (soat) applied to 29.676 people injured. results: 34,3% was admitted in the afternoon, 52,0% in weekends and holidays and 67,0% lived in medellín. 50,3% was admitted in the hospital in the first hour after the accident and 78,1% were discharged the same day. more than 50% were young men with ages 20-39 years. the most affected anatomical areas were the head, face or neck (25,8%) and lower extremities (25,2%). motorcyclists were 79,6%, and 43,2% suffered injuries in collisions. 54,7% had minor injuries. global mortality was 1,5%. discussion: knowledge about the characteristics of people who are seen in emergency departments of these cities, including medellín, is small.
Treatment of Data and GIS Implementation of Solar Radiation and Temperature Maps: Example in South-East of Spain
F. Vera-García,J. R. García-Cascales,Z. Hernández-Guillén,J. P. Delgado-Marín
ISRN Renewable Energy , 2012, DOI: 10.5402/2012/365469
Abstract: This paper presents the maps of solar radiation on the surface of south-east region of Spain named Región de Murcia. These maps are the result of treatment, study, and correlations obtained by data of 35 weather stations distributed throughout the region. These stations have collected data for 6 to more than 25 years. The paper presents the work performed for the treatment of collected data, the correlations used for the adjustment of the data, and the parameters obtained as a result of this adjustment. The weather stations are equipped with various sensors to collect several parameters, the measures covered and used for the study were global and diffuse radiation (in case that the station has pyranometer diffuse) and ambient temperature. The results were used to produce maps of horizontal radiation (global and diffuse) and ambient temperature at the surface of the region studied. To achieve the irradiation maps for this extended region has been used “r.sun” program, technical program that with the help of GRASS program uses geographic information systems (GISs) to evaluate the influence of geographical variables captured on horizontal plane at the surface. Using the results of the program for theoretical data and/or generic, and with the feedback obtained by the correlations of measures covered from weather stations, we have studied the incident radiation on the region. The main result of this study was to produce maps of irradiation on horizontal plane, correction for inclined surfaces, and also maps of temperature of the studied region. On this basis, results have been produced maps and tables of monthly solar radiation (mean maximum and minimum) for each of the 45 municipalities of the Region of Murcia. Thus, was obtained a useful tool for the calculation of available energy and thermal needs at the design process of plants using solar thermal and photovoltaic. 1. Introduction The energy from the sun is responsible for the vast majority of the types of energy that transforms and use the humanity. Besides, this source of energy is inexhaustible on a human scale, so solar energy has a special place in the field of renewable energy. To enable the collection and use of solar energy is necessary to make a well-designed catchment facility following a series of theoretical and technical criteria, right inclination to Ecuador, design of solar tracking systems, correct choice of materials to be used by recruiters, and so forth. An important parameter for the evaluation and implementation of feedback systems is undoubtedly to know with accuracy and
Estado de portador de neumococo en ni?os y su relación con la enfermedad invasiva: ?Qué ha cambiado tras la introducción de la vacuna conjugada?
García Vera,C.;
Pediatría Atención Primaria , 2010, DOI: 10.4321/S1139-76322010000400010
Abstract: some important changes relating to the pneumococcal invasive disease (pid) have happened in the last decade in developed countries. the effectiveness of the pneumococcal conjugate heptavalent vaccine (pcv-7) in diminishing the pid by the serotypes included (stv) has been proved after its generalization, but some new serotypes not included have aroused with force as cause of pid. fortunately, the load of the disease by not included serotypes in children younger than five years is much lower than the caused by stv before the vaccine, and this tendency seems steady with time. but this process has followed parallel to similar changes in the nasopharyngeal colonization by pneumococci, very frequent in under five children, so that now stv have dramatically diminished in healthy carriers and have been substituted by non vaccine serotypes that end by causing pid. this serotypes' replacement have made the antibiotic resistances to diminish due to the fact that they were more prevalent among stv. two new conjugated vaccines have been commercialized recently and they extend the protection to new serotypes. this paper reviews the changes, expectations and uncertainties that open this new stage in conjugated penumococcal vaccines.
Reacciones adversas psiquiátricas asociadas a nuevos macrólidos: A propósito de tres casos
Sanz de Miguel,M.P.; Sancho Gracia,E.; Chapi Pe?a,B.; Campos Bernal,A.; Romero Gil,R.; García Vera,C.;
Pediatría Atención Primaria , 2010, DOI: 10.4321/S1139-76322010000300007
Abstract: macrolides represent the 10-15% of the world-wide market of oral antibiotics. they are one of the safer groups of antibiotics, being the severe adverse reactions very rare. they can produce gastrointestinal reactions, hepatotoxicity and ototoxicity. the psychiatric reactions are found sporadically among the adverse effects. cases reported to the fda showed that clarithromycin and ciprofloxacin are the most frequent antibiotics associated with the development of mania. the syndrome has been termed antibiomania. we present three clinical cases seen in a primary care office in the last year with similar pictures of hyperactivity and aggressiveness coinciding with the administration of antibiotics of the family of the macrolides.
Quality of life assessment in Spanish lung cancer patients by the EORTC questionnaires
Arraras Urdaniz,J. I.; Martínez Aguillo,M.; Manterola Burgaleta,A.; Salgado Pascual,E.; Martínez López,E.; Vera García,R.; Illarramendi Ma?as,J. J.;
Oncología (Barcelona) , 2005, DOI: 10.4321/S0378-48352005000400002
Abstract: purpose: to assess the quality of life of a sample of lung cancer patients during their treatment. material and methods: 170 patients with limited and advanced small-cell lung cancer (sclc), and with stages iii and iv non-small cell lung cancer (nsclc) were considered. patients filled the eortc qlq-c30 questionnaire, and the eortc-lc13 lung module at three different times during the treatment and follow-up. demographic and clinical data were also recorded. we compared the groups according to the stage and treatment modality, and studied the changes of the quality of life throughout time. results: the quality of life scores of the patients under the given protocols: were acceptable in the three considered measurements, as were also the toxicity scores. at the base line there are limitations in the areas of symptoms of disease and quality of life. few differences were observed between the groups at different stages and under the different treatment modalities. the quality of life scores were similar according to the three measurements. treatment modality showed a specific effect in the second measurement, while in the third one it improved in some toxicity areas and persisted in others. conclusions: the quality of life of the patients receiving the complete protocols was acceptable. the patients under treatment stood it adequately.
Tuberculosis en ancianos en un hospital general de la Comunidad de Madrid, 1994-2003
García-Fernández,C.; Vera López,I.; Jaén Herreros,F.; Sanz-Gallardo,M. I.; Palenque Mataix,E.; Juanes Pardo,J. R. de;
Anales de Medicina Interna , 2006, DOI: 10.4321/S0212-71992006000400004
Abstract: introduction: tuberculosis in the elderly is a health problem that is on the increase nowadays in industrialised countries. the aim of this study is to describe epidemiological, clinical and microbiological characteristics of tuberculosis in elderly patients in a general hospital in the region of madrid from 1994 to 2003. methods: only microbiologically and/or histopathologically confirmed tuberculosis were studied. epidemiological, clinical and microbiological variables were analyzed. microbiological and histopathological laboratory results and medical records were collected. results: the proportion of cases occurring among the elderly rose from 12.4% between 1994 and 1998 to 17.8% between 1999 and 2003 (p<0.05). a total of 160 tuberculosis cases were studied: 92.5% were microbiologically (culture) confirmed and 7.5% histopathologically confirmed. the average time to culture positivity was 18.8 days (sd: 6.5). 88.7% isolates were susceptible to streptomycin, isoniazid, rifampin, ethambutol, and pyrazinamide. the main locations of tuberculosis were pulmonary (59.4%), ganglionary (11.9%) and genitourinary (10.0%). a positive smear in the sputum was discovered for 52.6% of pulmonary tuberculosis. the most prevalent risk factors were inmunosuppression (14.8%) and diabetes mellitus (12.3%). neither of them were vih, intravenous drug users or inmigrant. 50.7% cases were hospitalized. conclusions: tuberculosis in the elderly is on the increase in our region nowadays. the epidemiological pattern of tuberculosis in the elderly differs from that observed in younger patients. therefore specific control and prevention strategies are needed in order to reduce tuberculosis incidence in aged populations.
Treatment of Data and GIS Implementation of Solar Radiation and Temperature Maps: Example in South-East of Spain
F. Vera-García,J. R. García-Cascales,Z. Hernández-Guillén,J. P. Delgado-Marín
ISRN Renewable Energy , 2012, DOI: 10.5402/2012/365469
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