5 research outputs found
Formas de Hispanidad
Este texto presenta estudios sobre las múltiples formas de hispanidad, desarrollados en los últimos años por destacados investigadores del mundo hispánico que, poco a poco, han estado construyendo un nuevo espacio de investigación para una creciente y activa comunidad científica. En este libro el lector encontrará estudios con enfoques desde la ciencia política, la teoría política, la historia, la filosofía, la sociología, la economía, los estudios literarios y culturales, entre otras perspectivas académicas. Los aportes de cada aproximación teórica y disciplinar están orientados al logro de una meta común: la de reconstruir y reinterpretar la tradición histórica hispánica, desmantelando prejuicios ideológicamente provocados, con el fin de comprender los fenómenos políticos que la caracterizan. Por las mismas razones este libro se sitúa en el debate sobre las formas de escritura de la historia, que no es sólo un debate de teoría de la historia sino también de filosofía de lo histórico
Carretera Cuenca - el Valle estudio de su rectificación y ensanchamiento
Actualmente la construcción de carreteras ha conducido al empleo de nuevos afirmados en las calzadas, con el objeto que facilite un rápido descongestionamiento vehícular, un alto grado de seguridad y confort. Este estudio sobre la rectificación y ensanchamiento de la carretera Cuenca-El Valle es de singular importancia y prioridad, ya que la parroquia el Valle constituye un verdadero centro agrícola-ganadero que se encuentra prácticamente dentro del área metropolitana de la ciudad. Con la finalidad de determinar la intensidad de circulación y la importancia constructiva de la vía, se llevó a cabo una estadística de circulación, estudio topográfico, estudio del suelo y un diseño del pavimento para así dar una solución para un período de diseño de 20 años.Ingeniero CivilCuenc
Syntheses, Experimental and Theoretical Studies on Absorption/Emission Properties of Pyrazoline-Containing Aryl/Methoxynaphthyl Substituents
<div><p>5-Aryl-3-(2-methoxynaphthalen-6-yl)-1-phenylpyrazoline derivatives were synthesized starting from (E)-1-(3-aryl)-(2-methoxynaphthalen-6-yl)-prop-2-en-1-one and phenylhydrazine. The compounds were characterized by 1H and 13C nuclear magnetic resonance (NMR), elemental analyses and mass spectrometry. Some compounds showed promising luminescence properties in solution and in solid state; the absorption and emission characteristics were measured and the fluorescence quantum yield of two of the derivatives [4,5-dihydro-3-(2-methoxynaphthalen-6-yl)-5-(3,4,5-trimethoxyphenyl)-1-phenyl-1 H -pyrazoline and 5-(4-chlorophenyl)-4,5-dihydro-3-(2-methoxynaphthalen-6-yl)-1-phenyl-1 H -pyrazoline] were found to have excellent values compared to rhodamine B standard. Theoretical calculations at time-dependent density functional theory (TD-DFT) level are in agreement with the experimental measurements and are helpful to explain the electronic behavior.</p></div
Imaging social and environmental factors as modulators of brain dysfunction: time to focus on developing, non-Western societies
Social and environmental factors are known risk factors and modulators of mental health disorders. We here conducted a nonsystematic review of the neuroimaging literature studying the effects of poverty, urbanicity, and community violence, highlighting the opportunities of studying non-Western developing societies such as those in Latin America. Social and environmental factors in these communities are widespread and have a large magnitude, as well as an unequal distribution, providing a good opportunity for their characterization. Studying the effect of poverty in these settings could help to explore the brain effect of economic improvements, disentangle the effect of absolute and relative poverty, and characterize the modulating impact of poverty on the underlying biology of mental health disorders. Exploring urbanicity effects in highly unequal cities could help identify the specific factors that modulate this effect as well as examine a possible dose–response effect by studying megacities. Studying brain changes in those living among violence, which is particularly high in places such as Latin America, could help to characterize the interplay between brain predisposition and exposure to violence. Furthermore, exploring the brain in an adverse environment should shed light on the mechanisms underlying resilience. We finally provide examples of two methodological approaches that could contribute to this field, namely a big cohort study in the developing world and a consortium-based meta-analytic approach, and argue about the potential translational value of this research on the development of effective social policies and successful personalized medicine in disadvantaged societies.Fil: Crossley, Nicolas A.. Pontificia Universidad Católica de Chile; ChileFil: Alliende, Luz Maria. Pontificia Universidad Católica de Chile; ChileFil: Ossandon, Tomas. Pontificia Universidad Católica de Chile; ChileFil: Castañeda, Carmen Paz. Instituto Psiquiátrico Dr. José Horwitz Barak; ChileFil: González Valderrama, Alfonso. Instituto Psiquiátrico Dr. José Horwitz Barak; Chile. Universidad Finis Terrae.; ChileFil: Undurraga, Juan. Universidad del Desarrollo; Chile. Instituto Psiquiátrico Dr. José Horwitz Barak; ChileFil: Castro, Mariana Nair. Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia; Argentina. Universidad de Buenos Aires. Facultad de Medicina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Guinjoan, Salvador Martín. Universidad de Buenos Aires. Facultad de Medicina; Argentina. Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Díaz Zuluaga, Ana M.. Universidad de Antioquia; ColombiaFil: Pineda-Zapata, Julián A.. Instituto de Alta Tecnología Médica; ColombiaFil: López-Jaramillo, Carlos. Hospital Universitario San Vicente Fundación; Colombia. Universidad de Antioquia; ColombiaFil: Reyes Madrigal, Francisco. Instituto Nacional de Neurología y Neurocirugía; MéxicoFil: León-Ortíz, Pablo. Instituto Nacional de Neurología y Neurocirugía; MéxicoFil: de la Fuente-Sandoval, Camilo. Instituto Nacional de Neurología y Neurocirugía; MéxicoFil: Czepielewski, Leticia Sanguinetti. Hospital de Clinicas de Porto Alegre; BrasilFil: Gama, Clarissa S.. Hospital de Clinicas de Porto Alegre; BrasilFil: Zugman, Andre. Universidade Federal de Sao Paulo; BrasilFil: Gadelha, Ary. Universidade Federal de Sao Paulo; BrasilFil: Jackowski, Andrea. Universidade Federal de Sao Paulo; BrasilFil: Bressan, Rodrigo. Universidade Federal de Sao Paulo; Brasi
Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries
Background
Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks.
Methods
The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned.
Results
A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31).
Conclusion
Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)