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Search Results: 1 - 10 of 209446 matches for " Burgos López "
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Ciencia y técnica en la anticiencia ficción de C. S. Lewis
Burgos López,Campo Ricardo;
Civilizar Ciencias Sociales y Humanas , 2011,
Abstract: the article analyzes the image of western science and technology (and by extension of civilization in which they are prominent), that put cs lewis's cosmic trilogy (classic of fantasy literature and religion of the twentieth century). in the scientific-technical culture now prevailing in these three novels, lewis proposes a civilization rooted in christianity. faced with a scientific-technical culture to promote the dehumanization just the discrimination of humans and nonhumans, new forms of alienation and, ultimately, opposed to wisdom, lewis bet the alternative of a return to christ. such a return to christ is also the return to wisdom, and thus opting for a path leading to full humanization.
La mineria espa ola en la obra impressions of spain de albert f. calvert
María Antonia López-Burgos
Cuadernos Geográficos , 2005,
Abstract:
Efectos de la sobreeducación y el desfase de conocimientos sobre los salarios y la búsqueda de trabajo de profesionistas: Resultados de un estudio basado en opiniones y percepciones de egresados universitarios y empleadores
Burgos Flores, Benjamín;López Montes, Karla;
Perfiles educativos , 2011,
Abstract: in this article the authors analyze the presence of overeducation and how knowledge is totally out of phase in the labor market of graduate students of a mexican public university. starting from the data gathered from surveys to graduate students and their respective employers the authors construct variables in order to carry out mincer ordinary regressions that help to measure the effects of both phenomena on wages and logistic binary regressions to calculate their impact on the search for an alternative job. the authors find evidence that allow them to assert that professionals who are in a situation of educational and knowledge gap have lower wages and therefore tend more to search for alternative jobs.
Efectos de la sobreeducación y el desfase de conocimientos sobre los salarios y la búsqueda de trabajo de profesionistas. Resultados de un estudio basado en opiniones y percepciones de egresados universitarios y empleadores
Benjamín Burgos Flores,Karla López Montes
Perfiles educativos , 2011,
Abstract: En este trabajo se examina la presencia de la sobreeducación y el desfase de conocimientos en el mercado laboral de egresados de una universidad pública estatal de México. A partir de datos de encuestas a egresados y sus respectivos empleadores se construyen variables con las cuales se realizan regresiones ordinarias de tipo minceriano para medir los efectos de ambos fenómenos sobre los salarios, y regresiones binarias logísticas para calcular su efecto sobre la búsqueda de empleo alternativo. Se encontró evidencia para sostener que los profesionistas que se encuentran en situación de desfase educativo y de conocimientos tienen menores ingresos y son más propensos a buscar empleo alternativo.
A probability of snow approach to removing cloud cover from MODIS Snow Cover Area products
V. López-Burgos,H. V. Gupta,M. Clark
Hydrology and Earth System Sciences Discussions , 2012, DOI: 10.5194/hessd-9-13693-2012
Abstract: Satellite remote sensing can be used to investigate spatially distributed hydrological states and fluxes for use in modeling, assessment and management. However, in the visual wavelengths, cloud cover can often obscure significant portions of the images. This study develops a rule-based, multi-step method for removing clouds from MODIS Snow Cover Area (SCA) images. The methods used include a combining images from more than one satellite, time interpolation, spatial interpolation, and estimation of the probability of snow occurrence based on topographic information. Applied over the Upper Salt River Basin in Arizona, the method reduced the degree of cloud obscuration by 93.8% while maintaining a similar degree of image accuracy to that of the original images.
Los mármoles, la minería en Espa a y la Geología de Granada en la obra de E. Cook, un viajero inglés de 1830
María Antonia López-Burgos del Barrio
Cuadernos Geográficos , 2002,
Abstract:
Utilidad de la ecografía y el Eco-Doppler en el transplante renal
Burgos Revilla,Francisco Javier; Marcen Letosa,Roberto; Pascual Santos,Julio; López Fando,Luis;
Archivos Espa?oles de Urología (Ed. impresa) , 2006, DOI: 10.4321/S0004-06142006000400004
Abstract: objectives: the aim of the study is to analyze the usefulness of ultrasound and doppler ultrasound for the evaluation of transplant donors and recipients, for renal transplant follow-up and for the resolution of surgical complications after renal transplant. methods: abdominal ultrasound was performed in donors and recipients of renal grafts. in the recipients with vascular risk factors a doppler ultrasound of the iliac and lower limb arteries was systematically done. doppler ultrasound was performed in the first and seventh day after renal transplant, as well as for graft dysfunction at any moment.results: recipient ultrasound informs about the existence of acquired renal cystic disease and doppler ultrasound allows evaluating the vascular state of high risk recipients. in the immediate post-transplant period ultrasound studies are useful for detection of vascular complications, graft obstruction and to control the evolution of acute rejection and acute tubular necrosis. finally, ultrasound is the technique of choice in the endourological management of surgical complications after renal transplant. conclusion: ultrasound under urologic control is essential in the evaluation of the kidney transplant recipient, post-transplant follow-up and in the resolution of surgical complications.
Influence of physical activity and dietary habits on lipid profile, blood pressure and BMI in subjects with metabolic syndrome Influencia de la actividad física y los hábitos nutricionales sobre el perfil lipídico, presión arterial e IMC en sujetos con síndrome metabólico
J. J. Muros Molina,Ma J. Oliveras López,Ma Mayor Reyes,T. Reyes Burgos
Nutrición Hospitalaria , 2011,
Abstract: Background: The present study was determined the influence of physical activity and dietary habits on lipid profile, blood pressure (BP) and body mass index (BMI) in subjects with metabolic syndrome (MS). Aims: Identify the relationship between physical activity and proper nutrition and the probability of suffering from myocardial infarction (MI). Methods: Hundred chronically ill with MS who were active and followed a healthy diet were classified as compliant, while the remaining subjects were classified as non-compliant. Results: The compliant subjects show lower BMI values (30.8 ± 4.9 vs 32.5 ± 4.6), as well as lower levels of triacylglycerol (130.4 ± 48.2 vs 242.1 ± 90.1), total cholesterol (193.5 ± 39 vs 220.2 ± 52.3) and low-density lipoprotein cholesterol (105.2 ± 38.3 vs 139.2 ± 45). They show higher values in terms of high-density lipoprotein cholesterol levels (62.2 ± 20.1 vs 36.6 ± 15.3), with statistically significant differences. In terms of both systolic and diastolic pressure, no differences were revealed between the groups; however, those who maintain proper dietary habits show lower systolic blood pressure levels than the inactive subjects. The probability of suffering from MI greatly increases among the group of non-compliant subjects. Conclusions: Our results demonstrate how performing aerobic physical activity and following an individualized, Mediterranean diet significantly reduces MS indicators and the chances of suffering from MI. Introducción: En el presente estudio se determinó la influencia de la actividad física y los hábitos nutricionales sobre el perfil lipídico, presión arterial (PA) e índice de masa corporal (IMC) en sujetos con SM. Objetivos: Comprobar la relación entre realizar actividad física y una nutrición adecuada, y la posibilidad de sufrir infarto de miocardio (IM). Método: Se evaluaron 100 sujetos con SM. Los sujetos que manifestaban ser activos y llevaban una alimentación saludable fueron clasificados como cumplidores, mientras que al resto se les clasificó como no cumplidores. Resultados: Los sujetos cumplidores presentan valores menores en cuanto a su IMC (30,8 ± 4,9 vs 32,5 ± 4,6) y sus niveles de triglicéridos (130,4 ± 48,2 vs 242,1 ± 90,1), colesterol total (193,5 ± 39 vs 220,2 ± 52,3) y colesterol unido a lipoproteínas de baja densidad (105,2 ± 38,3 vs 139,2 ± 45); y valores mayores en los niveles de colesterol unido a lipoproteínas de alta densidad (62,2 ± 20,1 vs 36,6 ± 15,3) siendo las diferencias estadísticamente significativas. La PA, tanto sistólica como diastólica, no muestra diferencias entre ambos
Función pulmonar pre y post operatoria en bypass gástrico laparotómico y laparoscópico por obesidad mórbida
BURGOS L,ANA MARíA; CSENDES J,ATTILA; BURDILES P,PATRICIO; ALTUVE S,JUAN; LóPEZ S,YAIRA;
Revista chilena de cirugía , 2008, DOI: 10.4067/S0718-40262008000600006
Abstract: background: hypoventilation and pickwick syndrome are two respiratory problems observed in obese patients. weight reduction achieved after bariatric surgery can correct these problems but an exacerbation of respiratory problems can be observed in the immediate postoperative period. aim: to evaluate pulmonary function in patients subjected to open and laparoscopic gastric bypass, before and after surgery. material and methods: thirty nine subjects with morbid obesity were studied. twenty four patients aged 26 to 62 years (13 women) were subjected to an open bypass and 15 patients aged 22 to 55 years (12 women) were operated laparoscopically chest x ray, spiromemetry and arterial gases were assessed in both groups in the preoperative period and during the fifth postoperative day. results: the presence of atelectasis on chest x rays in the open surgery group, increased from 8% in the preoperative period to 46% in the postoperative period. in the laparoscopic surgery group the figures changed from 0 to 33%. in the open surgery group a restrictive pattern in spirometry was observed in 13 and 42% in the pre and postoperative periods. in the laparoscopic group the figures were 13 and 33%. in both groups, a decrease in torced vital capacity (fvc) was observed in the postoperative period. also a reduction in pac02 after surgery, from 38.6 to 36.5 mm hg and from 36.4 to 33.8 mmhg was observed in patients subjected to open and laparoscopic surgery, respectively. conclusions: in the immediate period after gastric bypass, either open or laparoscopic, there is an increase in the frequency of atelectasis on chest x rays, restrictive pattern and decreased torced vital capacity on spirometry and changes in blood gases.
EFECTO DEL CONTROL DE MALEZAS Y FERTILIZACIóN SOBRE EL CRECIMIENTO INICIAL DE UNA PLANTACIóN DE Gmelina arborea Roxb. EN EL DEPARTAMENTO DEL TOLIMA, COLOMBIA
Barrios,Alonso; López,Ana M.; Nieto,Víctor; Burgos,Natalia; Yaya,Manuel; González,Iván;
Colombia Forestal , 2011,
Abstract: this study was conducted to generate knowledge about silvicultural management in the establishment of gmelina arborea plantations located at department of tolima, colombia. the objective was to quantify the individual and combined effects of weed control and fertilization with n-pk-mg on the growth of individual trees of g. arborea. the evaluation used analysis of variance (anova) considering a block design with split plots arrangement, being the response variables: periodic annual increment (pai) in diameter, total height, basal area and total volume inside the bark. anova allowed to infer that there are no significant response differences among the application of one to three chemical weed control per year. however, the absence of weed control reduced the pai in diameter by 22% and 3% in total volume inside bark. fertilization was the main factor influencing the pai in diameter, total height, basal area and total volume inside bark. to conclude, the best treatment consisted of a combination of two weed controls per year and the use of a high dose of fertilizer (n = 60 g = 30 g p2o5, k2o = 120 g, mg = 68 g). this combination increased the pai in diameter by 29%, total height by 15% , area basal by 30% and total volume inside bark by 15% when compared with control plots.
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