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Search Results: 1 - 10 of 79129 matches for " David Rodríguez Pi?eiro "
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Serum CD26 is related to histopathological polyp traits and behaves as a marker for colorectal cancer and advanced adenomas
Loretta De Chiara, Ana M Rodríguez-Pieiro, Francisco J Rodríguez-Berrocal, Oscar J Cordero, David Martínez-Ares, María Páez de la Cadena
BMC Cancer , 2010, DOI: 10.1186/1471-2407-10-333
Abstract: sCD26 levels were measured by ELISA in 299 symptomatic and asymptomatic patients who had undergone a colonoscopy. Patients were diagnosed as having no colorectal pathology, non-inflammatory or inflammatory bowel disease, polyps (hyperplastic, non-advanced and advanced adenomas) or CRC.At a 460 ng/mL cut-off, the sCD26 has a sensitivity and specificity of 81.8% (95% CI, 64.5-93.0%) and 72.3% (95% CI, 65.0-77.2%) for CRC regarding no or benign colorectal pathology. Clinicopathological analysis of polyps showed a relationship between the sCD26 and the grade of dysplasia and the presence of advanced adenomas. Hence, a 58.0% (95% CI, 46.5-68.9%) sensitivity detecting CRC and advanced adenomas was obtained, with a specificity of 75.5% (95% CI, 68.5-81.0%).Our preliminary results show that measurement of the sCD26 is a non-invasive and reasonably sensitive assay, which could be combined with others such as the faecal occult blood test for the early diagnosis and screening of CRC and advanced adenomas. Additional comparative studies in average-risk populations are necessary.Colorectal cancer (CRC) is one of the four most prevalent cancers in Western countries due to a low recovery rate in advanced stages, when micrometastases may be already present. It develops from precancerous lesions (adenomas) that are easily removed by polypectomy, a procedure that reduces CRC incidence by 75-90% [1]; moreover, treatment of early diagnosed tumours has a good prognosis [2]. Furthermore, according to the MISCAN-COLON simulation model, a 23% reduction in CRC mortality would be achieved with the screening of at least 70% of the target population [3]. Therefore screening for CRC aims to reduce mortality rates by detection and removal of early-stage tumours, and incidence rates by identification and resection of polyps [4].There is a great variety of methods for the detection of CRC. A review of the ongoing screening initiatives worldwide was recently published [5]. The latest Joint Colorect
Measuring the weak mixing angle with the P2 experiment at MESA
Niklaus Berger,Kurt Aulenbacher,Sebastian Baunack,Dominik Becker,Jürgen Diefenbach,Michael Gericke,Kathrin Gerz,Ruth Herbertz,Krishna Kumar,Frank Maas,Matthias Molitor,David Rodríguez Pieiro,Iurii Sorokin,Paul Souder,Hubert Spiesberger,Alexey Tyukin,Valery Tyukin,Marco Zimmermann
Physics , 2015,
Abstract: The P2 experiment in Mainz aims to measure the weak mixing angle in electron- proton scattering to a precision of 0.13 %. In order to suppress uncertainties due to proton structure and contributions from box graphs, both a low average momentum transfer $Q^2$ of $4.5\cdot 10^{-3}$ GeV$^2/c^2$ and a low beam energy of 155 MeV are chosen. In order to collect the enormous statistics required for this measurement, the new Mainz Energy Recovery Superconducting Accelerator (MESA) is being constructed. These proceedings describe the motivation for the measurement, the experimental and accelerator challenges and how we plan to tackle them.
Gasto en campa?a y éxito electoral de los candidatos a diputados en chile 2005
MORALES QUIROGA,MAURICIO; PIEIRO RODRíGUEZ,RAFAEL;
Revista de ciencia política (Santiago) , 2010, DOI: 10.4067/S0718-090X2010000300004
Abstract: contrary to what an important part of the theory says campaign expenditure has a significant effect on the electoral success of incumbents in the house of representatives elections of 2005 in chile. moreover, electoral performance of expenditure is greater for those candidates with more than one period in office. campaign expenditure not only adds to the "incumbency advantages" of incumbents, but also multiplies their effect on electoral performance. secondly, it is assessed that incumbents who won in 2001 by greater margins in their coalition tend to show greater campaign expenditures (contrary to what was expected). on one hand, this fact is coherent with the idea that candidates tend to perceive that their expenses multiply their qualities and do not present diminishing returns. this behavior is also reinforced by rationale of the public campaign financing, which reimburses money according to votes attained and makes, as theory suggests that the decision to spend be influenced by the expectations of getting a greater subsidy.
Ground granulated blast furnace slag efficiency coefficient (k value) in concrete. Applications and limits
Sanjuán, M. A.,Pieiro, A.,Rodríguez, O.
Materiales de Construccion , 2011,
Abstract: Recently, a k-value for ground granulated blast-furnace slag or k-value has been added to the revision of the European standard EN 206-1:2000. The proposed values during the disscusion in the working groups were very different because in most of cases the compressive strength was the only characteristic considered; while only in few cases the concrete durability was taken into account when ground granulated blast-furnace slag is added directly to the mix. Advantages and disadvantages of the k-values found in the literature are discussed in this paper. The final conclusion may be summarised suggesting a logical proposal of addressing to each country the choice of the k-value in function of the concrete application, environment and placing conditions selected according to their own experience. Recientemente se ha incorporado un valor del coeficiente de eficacia K para la escoria de horno alto en la norma europea EN 206-1:2000. Los valores propuestos en los grupos de trabajo eran muy diversos ya que en algunos casos sólo consideraban la resistencia mecánica para su determinación mientras que en otros se remarcaba la importancia de tener en cuenta, además, aspectos relativos a la durabilidad del hormigón con dicha adición. En el presente artículo se discuten las ventajas y desventajas de proponer unos valores del coeficiente de eficacia K más o menos conservadores. La conclusión final se resume con la propuesta de una recomendación lógica que consiste en trasladar a cada país la elección del coeficiente K para que pueda aplicarse a los hormigones empleados en su territorio; tales valores de K deberán ser seleccionados de acuerdo con la experiencia de cada uno de los países.
Gasto en campa a y éxito electoral de los candidatos a diputados en chile 2005 Campaign Expenditure and Electoral Succes for Candidates to the House of Representative in Chile in 2005
MAURICIO MORALES QUIROGA,RAFAEL PIEIRO RODRíGUEZ
Revista de Ciencia Política , 2010,
Abstract: Al contrario de lo que se ala parte importante de la teoría, el gasto de campa a tiene un efecto significativo sobre el éxito electoral de los incumbentes en la elección de diputados de 2005 en Chile. Más aún, los rendimientos electorales del gasto son mayores para los candidatos con más de un período en el cargo. El gasto de campa a parece no sólo sumarse a las "ventajas" de los incumbentes, sino multiplicar su efecto sobre el rendimiento electoral. En segundo lugar, se aprecia que los incumbentes que ganaron en 2001 por mayores márgenes dentro de su pacto tienden a mostrar -contrario a lo esperable- mayor gasto de campa a. Por un lado, este hecho va en línea con la idea de que los candidatos tienden a percibir que su gasto multiplica sus cualidades y no parece presentar rendimientos marginales decrecientes. Este comportamiento también se ve reforzado por la lógica del financiamiento público de campa as, que reembolsa dinero de acuerdo a la votación obtenida y hace que, como sugiere la teoría, la decisión de gasto esté influida por las expectativas de obtener un mayor subsidio. Contrary to what an important part of the theory says campaign expenditure has a significant effect on the electoral success of incumbents in the House of Representatives elections of 2005 in Chile. Moreover, electoral performance of expenditure is greater for those candidates with more than one period in office. Campaign expenditure not only adds to the "incumbency advantages" of incumbents, but also multiplies their effect on electoral performance. Secondly, it is assessed that incumbents who won in 2001 by greater margins in their coalition tend to show greater campaign expenditures (contrary to what was expected). On one hand, this fact is coherent with the idea that candidates tend to perceive that their expenses multiply their qualities and do not present diminishing returns. This behavior is also reinforced by rationale of the public campaign financing, which reimburses money according to votes attained and makes, as theory suggests that the decision to spend be influenced by the expectations of getting a greater subsidy.
Les Biblioteques Municipals de Sabadell a Internet
Br?ll Nadal, Anna,Cano Vers, Marta,Rodríguez Pieiro, Carme
BiD : Textos Universitaris de Biblioteconomia i Documentació , 2003,
Abstract: L objectiu de l article és presentar el procés de creació del nou web de les Biblioteques Municipals de Sabadell utilitzant l exemple concret del web de la Biblioteca Vapor Badia. Després d una breu descripció del context actual que ens situa en el marc de l aparició del nou portal ciutadà Sabadell.net, s analitzen els elements de disseny i continguts d informació que configuren l arquitectura del web de biblioteques, fent especial esment a la ubicació d alguns recursos, com ara el catàleg al servidor diba.es. Els apartats finals estan dedicats a les eines d edició i actualització de les pàgines web, als recursos humans i als projectes futurs que defineixen àmbits de millora.
Cristalización de insulina: importancia del semillamiento en la calidad del producto final
Arturo Toledo Rivero,Nelson Sierra Bravo,Hilda Rodríguez Vázquez,Roberto Orta Pieiro
Revista Cubana de Enfermer?-a , 1995,
Abstract: Se compararon 2 procedimientos tradicionales de obtención de peque os cristales de insulina para utilizarse como medio de semillamiento en procesos de cristalización, partiendo ambos de la liofilización de soluciones de insulina bovina altamente purificada. Experimentalmente se demostró que, para evitar el fenómeno de nucleación secundaria y, por ende, asegurar una buena uniformidad en el tama o de cristales del producto final de insulina, se impone un semillamiento con cristales de alrededor de 2 m, obtenidos a partir de la liofilización de soluciones con la misma composición química del medio donde deben desarrollarse los cristales de semilla.
Actualidad del Síndrome de Munchausen: su médico, su cuerpo y su dolor.
Tiburcio Angosto Saura,A Díaz Pieiro,JL Fernández Sastre,C Iglesias Rodríguez
Revista de la Asociación Espa?ola de Neuropsiquiatría , 1989,
Abstract: A propósito de seis casos, con probable diagnóstico de Síndrome de Munchausen, se hace una revisión bibliográfica de los tres últimos a os, al mismo tiempo que mediante tests proyectivos se intenta buscar características comunes en este síndrome, así como se hace un intento de aproximación psicodinámica a dicho síndrome.
EVOLUCIóN E IMPORTANCIA ECONóMICA DE LAS DENOMINACIONES GEOGRáFICAS DE CALIDAD GALLEGAS
PILAR PIEIRO GARCíA,MARíA JOSé GARCíA RODRíGUEZ
Revista Galega de Economía , 2011,
Abstract: Los productos del sector agroalimentario gallego se enfrentan a un entorno cada vez más competitivo. Por este motivo, algunos de ellos han querido destacar sus especiales características -relacionadas con la calidad y con su lugar de origen- mediante la adopción de las llamadas denominaciones geográficas de calidad. En este artículo se revisan las distintas figuras jurídicas aplicadas en la actualidad y en qué consiste cada una de ellas. Posteriormente, se realiza una revisión de las que existen en Galicia, analizando su evolución e importancia económica, así como la representatividad en el contexto nacional y el nivel de penetración en los mercados exteriores.
PERFIL DA VíTIMA DE MOBBING EN GALICIA. ESPECIAL ATENCIóN áS DIFERENZAS DE XéNERO
MARíA áNGELES LóPEZ CABARCOS,PAULA VáZQUEZ RODRíGUEZ,CARLOS MONTES PIEIRO
Revista Galega de Economía , 2012,
Abstract: This paper analyzes the victim profile of mobbing among a sample of Galician working population, with special attention to gender differences. The results show significant differences between men and women in relation to the mobbing incidence and the type and seriousness of the behaviours suffered. In particular, women are more affected by the processes of psychological harassment than men and they suffer a greater number of behaviours although less intense. In the case of women, the behaviors suffered are more related to the personal sphere, while men suffer work-related behaviours. In both cases, the victims indicate envy as a cause of mobbing, who choose to act passively to attack the aggressor, normally a superior.
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