18,566 research outputs found

    Entrevista a Josefina Castellanos Segura

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    Interview with Josefina Castellanos Segura conducted by Daniel Castellanos as part of the Oral History Project "Forgotten Frontera." Entrevista a Josefina Castellanos Segura realizada por Daniel Castellanos como parte del Proyecto de Historia Oral "Forgotten Frontera."Center for the Study of the American Wes

    Electrohydrodynamics and dielectrophoresis in microsystems: scaling laws

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    The movement and behaviour of particles suspended in aqueous solutions subjected to non-uniform ac electric fields is examined. The ac electric fields induce movement of polarizable particles, a phenomenon known as dielectrophoresis. The high strength electric fields that are often used in separation systems can give rise to fluid motion, which in turn results in a viscous drag on the particle. The electric field generates heat, leading to volume forces in the liquid. Gradients in conductivity and permittivity give rise to electrothermal forces and gradients in mass density to buoyancy. In addition, non-uniform ac electric fields produce forces on the induced charges in the diffuse double layer on the electrodes. This causes a steady fluid motion termed ac electro-osmosis. The effects of Brownian motion are also discussed in this context. The orders of magnitude of the various forces experienced by a particle in a model microelectrode system are estimated. The results are discussed in relation to experiments and the relative influence of each type of force is described

    Castellanos, M.

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    Episode 35: Alexis Castellanos, Author of “Isla to Island”, and Her Panel Presentation during the Operación Pedro Pan Two-Day Event

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    In Part 1 of “Operación Pedro Pan: The Voices and Stories of Cuba’s Child Exodus—A Knights HistoryCast Mini-Series,” the Department of History’s Sebastian Garcia talked with Alexis Castellanos, an author, illustrator, graphic novelist, and a panelist at the esteemed, conspicuous, and powerful “Operación Pedro Pan: Honoring the Cultural, Historical Legacy of Cuba’s Child Exodus” Two-Day Program that Florida Humanities, UCF’s Department of English and Department of Modern Languages and Literatures sponsored (see https://cah.ucf.edu/pedro-pan/ for more details on sponsors and the program in general). Sebastian structured this specific episode on Alexis Castellanos’ Isla to Island, a wordless graphic novel grounded by her personal family history and the history of Operación Pedro Pan (Operation Peter Pan). By analyzing such a historic event through the medium of fiction, Sebastian argued that this is one of the most unique Knights HistoryCast episodes of all time. Naturally, their conversation expanded to what she talked about during her panel presentation in Panel One, Day 1 of the event that featured “internationally renowned scholars that discussed the political, historical, and cultural legacy of Operación Pedro Pan (1960-1962).” (https://cah.ucf.edu/pedro-pan/) To purchase Isla to Island (strongly recommend), check out: https://islatoisland.com/. To find out more about Alexis and her professional work, check out her website at https://alexiscastellanos.com/https://stars.library.ucf.edu/knightshistorycast/1034/thumbnail.jp

    Glorias de Azara en el siglo XIX : acta de la solemne inauguración del monumento erigido en Barbuñales de Aragón, el 27 de noviembre de 1850, al ... Sr. Don José Nicolás de Azara y Perera, Primer Marqués de Nibbiano por su sobrino y sucesor ... Agustín de Azara ...

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    En Segunda Parte consta en pie de imp.: Imp. á cargo de Antonio Pérez Dubrull; En cub. de esta parte consta: Imp. de D.B. González, 1852Il. litogrComposiciones musicales (texto) en ambas partesH. de lám. litogr., cinco en la parte primera y dos en la parte segunda: "M. de Aguirre lo p\po\s y d.\po\s, P. Hortigosa g\po\s", "V. Rodas d. Amilló g.", "Tejeo del. Hortigosa g\po"\s, etc. retratosFront. litogr. en cada parte: "Lit. de Peant... Madrid" "B. de Lettre"Contiene: Primera Parte. Corona poetico-musical que una gran parte de literatos y algunos profesores de música españoles del siglo XIX, consagran a la buena memoria del célebre diplomatico y distinguido escritor español el Excmo. Sr. D. José Nicolas de Azara y Perera -- Segunda parte. Notas á la Corona poetica : traducciones a algumas de las poesias insertas en dialectos provinciales, aclaraciones y cartas que las esplican. Discurso historico-arqueológico sobre la musica en general, y en particular la española, escrito en honor á la buena memoria del siglo XVIII, el Excmo. Sr. D. Jose Nicolas de Azara y Perera ... / por su historiador Basilio Sebastian Castellanos de Losada. Discurso historico-arqueologico sobre el baile en general, y en particular del español, escrito en honor á la buena memoria del célebre diplomático y literato el Excmo. Sr. D. José Nicolas de Azara y Perera ... / por su historiador Basilio Sebastian Castellanos de Losad

    Spillover: a code calculating the erosion-water flow feedback during lake-overtopping outburst floods

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    Más Información: https://github.com/danigeos/spilloverContacto: Garcia-Castellanos, D., [email protected] model calculating the feedback between incision and water flow at the outlet of an overtopping lake. As the lake level decreases dure to the water exiting through the outlet, so does the outlet too, due to erosion by the water flow. The competition between these two processes determines the peak discharge of the potential flood. Adopts an erosion rate law proportional to erodibility and basal-water shear stress. This software was first edited in 2009 and updated in 2018.European Union H2020 #765256 SaltGiant; Spanish Government and European Union PNIDI-CGL: CGL2011–26670 TECLA; Spanish Government and European Union CGL2014-59516 MITE; Spanish Government and European Union PR2011-0044 Salvador de MadariagaPeer reviewe

    Fotografía UDBC016176

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    Fotografía del ejemplar Castellanos-M., C. 339, determinado como Myrsine latifolia en el año 201

    Fotografía UDBC016222

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    Fotografía del ejemplar Castellanos-M., C. 265, determinado como Senna undulata en el año 200

    Fotografía UDBC016218

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    Fotografía del ejemplar Castellanos-M., C. 353, determinado como Vernonanthura patens en el año 200

    Fotografía UDBC016225

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    Fotografía del ejemplar Castellanos-M., C. 354, determinado como Calliandra purdiei en el año 200
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