Desarrollo de técnicas de generación de plasmas de aplicación industrial

IP 1119-05-400-93controlador basado en conocimiento difuso / M. Arroyave, F.N Toro, P. Arango A, Alfonso De Via Cubillos - En:;Revista Colombiana de Fisica - vol. 32 No 1 (2000); p. 243-246-ISSN 01202650 - Identificacion automatizada;de lineas atomicas en espectros de emision de plasmas / W.Ramirez, G. Castellanos, E. Restrepo, Alfonso De;Via, P. Arango - En: Revista Colombiana de Fisica - vol. 31 No2(1999); p. 177-180 - ISSN 01202650 -;Estabilidad para el problema MHD en placas perforadas y paralelas / Alfonso De Via, J. Botero, M. Arroyave, W.;Rivera - En: Revista Colombiana de Fisica vol. 31 No 2 (1999);p. 185-188- ISSN 01202650 - Evaluacion de las;caracteristicas superficiales de peliculas de dioxido de estañopor STM /W. Rivera, L.H Tamayo, Alfonso De;Via - En: Revista Colombiana de Fisica vol. 31 No 2 (1999); p.247-250 - ISSN 01202650 - Interaccion entre;fisica e ingenieria para el direccionamiento de la investigacionhacia eldesarrollo tecnologico / Y. S;Hincapie, C.B Perez, Alfonso De Via, J. Pinzon, P.J Arango'- en:Revista Colombiana de Fisica vol. 31 No 2;(1999); p. 384-387 - ISSN 01202650 - Obtencion de funciond ajuste por redneuronal para sensor pirani en un;controlador de presion / M. Arroyave, P. Arango, Alfonso De Via,N. Toro -En: Revista Colombiana de Fisica;vol. 31 No 2 (1999); p. 423-427 - Flujos disipativos magnetohidrodinamicos/ Alfonso De Via, A. Morales, F.;Angulo - En: Revista Colombiana de Fisica vol. 27 No 1 (1995);p. 141-146'- Calculo de La funcion de;dispersion del plasma / Alfonso De Via, G. Gonzalez, F. Angulo-En: Revista Colombiana de Fisica vol. 27 No 1;(1995); p. 178-182 - Variables y ventajas del proceso de polimerizacion enplasma / Andres F. Rojas, Jairo A.;Ortiz, Elizabeth Restrepo, Alfonso De Via - En: NOOS No 6(septiembre de 1998); p. 85-93 - ISSN 01235591 -;Cinetica de la formacion de una pelicula de nitruro de titanio/Andres F.Rojas, Alfonso De Via Cubillos,;Rafael Alzate S. - En: NOOS No 9 (junio de 1999); p. 115-1-19-ISSN 01235591 - Efecto del numero de descargas;en el espesor del recubrimiento de nitruro de titanio / AndresF. Rojas, Alfonso De Via Cubillos, Rafael;delgadas de tin / P.J Arango, M, Arroyave, Alfonso De Via,J.JBotero - En: Revista Colombiana de Fisica -;vol. 32 No 1 (2000); p. 229-231 - ISSN 01202650 - Controlde corriente endescargas glow utilizando un;Alzate S.-- En: NOOS No 9 (junio de1999); p. 140-145 -- ISSN 01235591.;ARTICULO(S) EN REVISTA: Electromagnetic oscillations in cylindrical plasmas with electron beams interactions;/ P.J. Arango, H.Barco, Alfonso De Via Cubillos - En: Astrophysics and space science. - No. 256 (1998); p.;321-326. - Tin production in a glow discharge / P.J Arango, A.FRojas, C.APeña, J.A Ortiz, E.Restrepo,;Alfonso De Via Cubillos - En: Astrophysics and space science.-No. 256 (1998); p. 517-521. PONENCIA(S);CONGRESO: Electron temperature using a double probe in a plasma/ Latin american workshop in plasma physics :;La Serena Club Resort 13-17 November 2000 La Serena, Chile'- en:Latin american workshop in plasma physics;(2000 nov. 13-17 La Serena, Chile). - Facultad de Fisica,Pontificia Universidad Catolica de Chile - 29 cm. -;Produccion de peliculas duras a base de carbono por cvd ypvd/Wayner Rivera Marquez, Alfonso Devia, Luis A.;Garcia, Mauricio Arroyave, Cruz M.Torres. - En: IV Tallerde recubrimientos duros, San Jose, Costa Rica 18-22;de junio de 2000 / Taller de Recubrimientos Duros (4 : 2000 jun.18-22 : San Jose, Costa Rica). - San Jose,;Costa Rica : [s.n], 2000. - Implementacion de un sistema de medida para lacaracterizacion electrica y;magnetica del plasma / L.A Garcia, J.Arango, A.Pulsara, E.Gonzalez, P.Arango, Alfonso Devia : Centro de;Convenciones: Alfonso Lopez Pumarejo junio 28 - julio 2 1999 Santa Fe de Bogotá - En: XVIII Congreso Nacional;de Fisica (1999 junio 28 - julio 2 Santa Fe de Bogotá) - Universidad Nacional de Colombia - 29 cm. - Automated;sistem coatings for a pvd process / M.Arroyave, Alfonso DeVia,P.Arango,N.Toro, E.Restrepo : Latin American;worksshop on plasma physics : Tandil- Buenos Aires - ArgentinaEn: Latin american workshop on plasma physics;(1998 noviembre 16-27 Tandil - Buenos Aires - Argentina).'- Tandil - Buenos Aires - Argentina : 1998 - Growth;of polymers film in a glow dc plasma / A.F Rojas, J.A Ortiz, Alfonso De Via. : Latin American worksshop on;plasma physics (1998 noviembre 16-27 Tandil- Buenos Aires'- Argentina). -Tandil - Buenos Aires - Argentina :;1998 - Electromagnetic oscillation in cylindrical plasmaswithelectron beam interaction / Alfonso De Via, P.J;Arango, H.Arango En: Latin america workshop on plasma physics(1997 junio20-31 Caracas Venezuela). - Caracas;Venezuela : 1997 - Tin production in a dc glow discharge /P.JArango, Alfonso De Via, A.F Rojas, C.A Pea, A.J;Ortiz, E. 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COSMOS-Web: An Overview of the JWST Cosmic Origins Survey

We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hour treasury program conducted by the James Webb Space Telescope in its first cycle of observations. COSMOS-Web is a contiguous 0.54 deg$^2$ NIRCam imaging survey in four filters (F115W, F150W, F277W, and F444W) that will reach 5$\sigma$ point source depths ranging $\sim$27.5-28.2 magnitudes. In parallel, we will obtain 0.19 deg$^2$ of MIRI imaging in one filter (F770W). COSMOS-Web will build on the rich heritage of multiwavelength observations and data products available in the COSMOS field. The design of COSMOS-Web is motivated by three primary science goals: (1) to discover thousands of galaxies in the Epoch of Reionization ($64$ and place constraints on the formation of the Universe's most massive galaxies ($M_\star>10^{10}$ M$_\odot$), and (3) directly measure the evolution of the stellar mass to halo mass relation using weak gravitational lensing out to $z\sim2.5$ and measure its variance with galaxies' star formation histories and morphologies. In addition, we anticipate COSMOS-Web's legacy value to reach far beyond these scientific goals, touching many other areas of astrophysics, such as the identification of the first direct collapse black hole candidates, ultracool sub-dwarf stars in the Galactic halo, and possibly the identification of $z>10$ pair-instability supernovae. In this paper we provide an overview of the survey's key measurements, specifications, goals, and prospects for new discovery

COSMOS-Web: An Overview of the JWST Cosmic Origins Survey

We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hour treasury program conducted by the James Webb Space Telescope in its first cycle of observations. COSMOS-Web is a contiguous 0.54 deg$^2$ NIRCam imaging survey in four filters (F115W, F150W, F277W, and F444W) that will reach 5$\sigma$ point source depths ranging $\sim$27.5-28.2 magnitudes. In parallel, we will obtain 0.19 deg$^2$ of MIRI imaging in one filter (F770W). COSMOS-Web will build on the rich heritage of multiwavelength observations and data products available in the COSMOS field. The design of COSMOS-Web is motivated by three primary science goals: (1) to discover thousands of galaxies in the Epoch of Reionization ($64$ and place constraints on the formation of the Universe's most massive galaxies ($M_\star>10^{10}$ M$_\odot$), and (3) directly measure the evolution of the stellar mass to halo mass relation using weak gravitational lensing out to $z\sim2.5$ and measure its variance with galaxies' star formation histories and morphologies. In addition, we anticipate COSMOS-Web's legacy value to reach far beyond these scientific goals, touching many other areas of astrophysics, such as the identification of the first direct collapse black hole candidates, ultracool sub-dwarf stars in the Galactic halo, and possibly the identification of $z>10$ pair-instability supernovae. In this paper we provide an overview of the survey's key measurements, specifications, goals, and prospects for new discovery

COSMOS-Web: An Overview of the JWST Cosmic Origins Survey

We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hour treasury program conducted by the James Webb Space Telescope in its first cycle of observations. COSMOS-Web is a contiguous 0.54 deg$^2$ NIRCam imaging survey in four filters (F115W, F150W, F277W, and F444W) that will reach 5$\sigma$ point source depths ranging $\sim$27.5-28.2 magnitudes. In parallel, we will obtain 0.19 deg$^2$ of MIRI imaging in one filter (F770W). COSMOS-Web will build on the rich heritage of multiwavelength observations and data products available in the COSMOS field. The design of COSMOS-Web is motivated by three primary science goals: (1) to discover thousands of galaxies in the Epoch of Reionization ($64$ and place constraints on the formation of the Universe's most massive galaxies ($M_\star>10^{10}$ M$_\odot$), and (3) directly measure the evolution of the stellar mass to halo mass relation using weak gravitational lensing out to $z\sim2.5$ and measure its variance with galaxies' star formation histories and morphologies. In addition, we anticipate COSMOS-Web's legacy value to reach far beyond these scientific goals, touching many other areas of astrophysics, such as the identification of the first direct collapse black hole candidates, ultracool sub-dwarf stars in the Galactic halo, and possibly the identification of $z>10$ pair-instability supernovae. In this paper we provide an overview of the survey's key measurements, specifications, goals, and prospects for new discovery

Effects of pre-operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study an international prospective cohort study

We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05–1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4–7 days or ≥ 8 days of 1.25 (1.04–1.48), p = 0.015 and 1.31 (1.11–1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care. We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05–1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4–7 days or ≥ 8 days of 1.25 (1.04–1.48), p = 0.015 and 1.31 (1.11–1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care