Search

Copyright of Entre Ciencia e Ingeniería is the property of Entre Ciencia e Ingenieria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Scientia et Technica is the property of Scientia et Technica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Entre Ciencia e Ingeniería is the property of Entre Ciencia e Ingenieria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Moisture mobility inside a transformer's solid insulation can be modelled by using a diffusion model based on Fick's second law. The precision of these models is related to the so-called moisture diffusion coefficient. The experimental determination of the moisture diffusion coefficient can be a difficult task. For this reason, previous studies aimed to find a more simple experimental methodology to determine the moisture diffusion coefficients of solid cellulosic insulations. This methodology uses experimental drying curves and an optimization process with genetic algorithms (GAs) working with a drying diffusion model which is solved by the finite element method. In this article, a basic particle swarm optimization (PSO) method as an alternative to the previous optimization process by GAs was implemented and evaluated. The PSO method reduces the time spent in the determination of the moisture diffusion coefficient. Additionally, optimization by particle swarm simplified the methodology to determine the moisture diffusion coefficient because a subsequent statistical analysis, as required when GAs are used, is not necessary. [ABSTRACT FROM AUTHOR]

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Ingeniería e Investigación is the property of Universidad Nacional de Colombia, Facultad de Ingenieraia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction Need for a geriatrician in the peri operative care of older surgical patients is evident by the NCEPOD reports in 2010 and 2011. Funding for Consultant Geriatrician led surgical liaison service for RBH was approved in 2014.We present a comparative review of the service during 2019/2020. Methods A retrospective audit of elective and emergency surgical patients over 65 years of age from January to March 2019 and June to September 2020 was done. Geriatrician input was provided on weekdays by Less than full time (80%) equivalent Consultant, 1 full time equivalent physician associate and a Gerontology Registrar on pro rota basis. Results We reviewed 76 patients in 2019 (Emergency 74/76 = 95% Vs Elective 2/76 = 3%) and 161patients in 2020 (Emergency134/161 = 83% Vs Elecetive27/161 = 17%). Majority of emergency presentations were small bowel obstruction, acute cholecystitis, and pancreatitis while laparoscopic right hemi colectomy was the commonest elective surgical admission. The average age of patients was 72 years (2019) and 79 years (2020). Length of stay up to 5 days reduced from 75% (51/76) in 2019 to 43% (70/161) in 2020. The overall length of stay reduced from 12 days to 8.5 days in 2019 and 2020, respectively 30 days readmission rate increased from 21% (16/76) in 2019 to 25.5% (41/161) in 2020. 75% (2019) and 96% (2020) of patients were discharged back to their usual residence and death rates reduced from 14% to 1% between the 2 audits. Conclusion There is an increase in patient number, age, and complexity. Number of elective surgical admissions after the 1st Covid wave has risen. Even with less than full time Consultant Geriatrician cover the service has helped to reduce the overall length of hospital, mortality rate and added to cost saving. There is need for senior cover for service to work efficiently and to meet its ever-increasing demand. [ABSTRACT FROM AUTHOR]

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Energía y Computación is the property of Universidad del Valle and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archivos de Neurociencias is the property of Instituto Nacional de Neurologia y Neurocirugia, Departamento de Publicaciones Cientificas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)