16 research outputs found
Elaboración de modelo para demostración del funcionamiento de bulones
Memoria ID-057. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2013-2014
Diseño e implantación de materiales didácticos prácticos para facilitar el aprovechamiento de áridos reciclados procedentes de residuos de construcción y demolición (RCD`S) mediante su empleo en obras públicas y edificación
Memoria ID-063. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2018-2019
Creación de modelos a escala de situaciones reales en distintas obras para estudiar el comportamiento geomecánico de materiales granulares y cohesivos (II): presa de hormigón y efectos sísmicos en suelos
Memoria ID-0062. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2013-2014.En las asignaturas de Geotecnia y Mecánica de Suelos se presentan conceptos
teóricos y modelos del terreno que pocas veces se pueden comprobar más allá de
experimentos concretos en laboratorio. Estos modelos de la realidad tratan de asemejarse a
obras concretas, en las que, por otra parte, lo que ocurre en el subsuelo permanece oculto, y
por lo tanto habitualmente el comportamiento supuesto del terreno sólo puede comprobarse a
través de medidas de auscultación, sin poder tener evidencias visuales que enfaticen la
idoneidad de los conceptos e hipótesis teóricas.
La recreación de modelos físicos en urnas transparentes es una herramienta de gran
utilidad para que el alumno de las asignaturas antes mencionadas pueda ver el
comportamiento del terreno y comprobar cómo reacciona ante la aplicación de cargas en
superficie, deformándose o incluso llegando a romper, cómo se reorganiza ante la acción de
fuerzas dinámicas (simulación de sismos), y visualizando la circulación del agua a su través y
las implicaciones que ello conlleva.
Para este proyecto se han montado en dos urnas de metacrilato, equipadas con varios
piezómetros cada una de ellas, modelos que recrean el fenómeno de la licuefacción en
terrenos arenosos ante una acción dinámica y la circulación de agua por debajo de una presa
de fábrica
Creación de modelos a escala de situaciones reales en distintas obras para estudiar el comportamiento geomecánico de materiales granulares y cohesivos
Memoria ID12-0264. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2012-2013
Fomento del pensamiento crítico en el ámbito de la ingeniería del terreno: contraste entre realidad y teoría con la ayuda de métodos de auscultación electrónicos
Memoria ID-0168. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2016-2017
Feasibility and short-term outcomes in liver-first approach: a Spanish snapshot study (the RENACI project)
Producción CientíficaSimple Summary: Current evidence does not provide enough information for selecting a tailored approach pathway in patients with colorectal cancer and synchronous liver metastases. There are no randomized clinical trials or prospective series comparing the classical approach with the liver-first approach. In addition, information on the proportion of patients who actually complete the therapeutic regimen is limited. The RENACI Project was a prospective National Registry performed on patients with colorectal cancer and synchronous liver metastases undergoing the liver-first approach. This study aimed to present the data of feasibility and short-term outcomes of the Spanish National Registry of Liver First Approach (the RENACI Project).(1) Background: The liver-first approach may be indicated for colorectal cancer patients with synchronous liver metastases to whom preoperative chemotherapy opens a potential window in which liver resection may be undertaken. This study aims to present the data of feasibility and short-term outcomes in the liver-first approach. (2) Methods: A prospective observational study was performed in Spanish hospitals that had a medium/high-volume of HPB surgeries from 1 June 2019 to 31 August 2020. (3) Results: In total, 40 hospitals participated, including a total of 2288 hepatectomies, 1350 for colorectal liver metastases, 150 of them (11.1%) using the liver-first approach, 63 (42.0%) in hospitals performing <50 hepatectomies/year. The proportion of patients as ASA III was significantly higher in centers performing ≥50 hepatectomies/year (difference: 18.9%; p = 0.0213). In 81.1% of the cases, the primary tumor was in the rectum or sigmoid colon. In total, 40% of the patients underwent major hepatectomies. The surgical approach was open surgery in 87 (58.0%) patients. Resection margins were R0 in 78.5% of the patients. In total, 40 (26.7%) patients had complications after the liver resection and 36 (27.3%) had complications after the primary resection. One-hundred and thirty-two (89.3%) patients completed the therapeutic regime. (4) Conclusions: There were no differences in the surgical outcomes between the centers performing <50 and ≥50 hepatectomies/year. Further analysis evaluating factors associated with clinical outcomes and determining the best candidates for this approach will be subsequently conducted.Asociación Española de Cirujanos - (grant Research Projects 2020
Role of age and comorbidities in mortality of patients with infective endocarditis
[Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality.
[Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk.
[Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality.
[Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group
Simulación de empujes de tierras con modelos a escala
Memoria ID12-0339. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2012-2013
Aminocronology of the Middle Pleistocene deposits of Redueña (Madrid)
This paper deals with Redueña alluvial fan deposits amino acid (aspartic acid and leucine ) racemization dating. Redueña deposits and faunal and archaeological Middle Paleolithic remains can be correlated with the 8th oxigen episode (ca.350 k.a.). Method usefullness to determine thermal story data was also checked