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Papers by LUISA FERNANDA CALDERON CASTELLANOS

Research paper thumbnail of El pasado en el presente: la obra de Edgar Negret y Eduardo Ramírez-Villamizar

Ánima

Durante el siglo XX, la historia del arte colombiano y latinoamericano se encargó de revisar la o... more Durante el siglo XX, la historia del arte colombiano y latinoamericano se encargó de revisar la obra de los artistas Edgar Negret y Eduardo Ramírez-Villamizar desde la abstracción y los importantes cambios que su lenguaje geométrico generó en la escena artística colombiana. Pero a pesar de ser un tema recurrente en sus obras, sus títulos y sus discursos, el interés de estos artistas por el arte precolombino ha sido tratado de manera marginal. Este trabajo busca, entonces, analizar la manera en que Negret y Ramírez-Villamizar se enfrentaron a los artefactos precolombinos y cómo se evidencia este legado en su obra. De esta manera, se comprueba que, a través de la geometría y los materiales, los artistas colombianos buscan reconectar el pasado precolombino con el presente moderno, construyendo un puente que permita a lo precolombino ser incorporado en el arte moderno y considerado como una fuente por artistas venideros.

Research paper thumbnail of Numerical Steady and Transient Evaluation of a Confined Swirl Stabilized Burner

International Journal of Turbomachinery, Propulsion and Power, 2021

Lean premixed combustion technology became state of the art in recent heavy-duty gas turbines and... more Lean premixed combustion technology became state of the art in recent heavy-duty gas turbines and aeroengines. In combustion chambers operating under fuel-lean conditions, unsteady heat release can augment pressure amplitudes, resulting in component engine damages. In order to achieve deeper knowledge concerning combustion instabilities, it is necessary to analyze in detail combustion processes. The current study supports this by conducting a numerical investigation of combustion in a premixed swirl-stabilized methane burner with operating conditions taken from experimental data that were recently published. It is a follow-up of a previous paper from Farisco et al., 2019 where a different combustion configuration was studied. The commercial code ANSYS Fluent has been used with the aim to perform steady and transient calculations via Large Eddy Simulation (LES) of the current confined methane combustor. A validation of the numerical data has been performed against the available exper...

Research paper thumbnail of Prevención y atención, la mejor herramienta contra la violencia intra familiar existente en familias usuarias de los servicios de la comisaría de Familia en Engativá, atendidas durante el período comprendido entre el 2005 y 2006 en coordinación con Consultorio Social de Uniminuto

Research paper thumbnail of Multicultural Sensitivity and Interpersonal Skills Training for Preservice Teachers

The Journal of Humanistic Counseling, Education and Development, 2005

Teacher education students who participated in a Multicultural Relationship Enhancement program s... more Teacher education students who participated in a Multicultural Relationship Enhancement program showed signlfcant improvement in empathic listening and expressive speaking in conflictual multicultural situations No signzficant difference was found between participants and a wait-list control group on a measure of prepdice * * * In recent decades, the legal and social systems have been instrumental in curbing the overt expression of prejudice in the United States (Kendall, 1996). Nevertheless, prejudice has hardly been eradicated and remains a significant problem in American society (Sandhu & Aspy, 1997). The terrorist attacks on September 11,2001, were followed by a dramatic increase in hate crimes against Southeast Asians (CNN, 2001). More than 300 reports of harassment or abuse were received by the Council on American-Islamic Relations in the 2 days following the attacks, which is close to half the number received in the entire previous year. In 1999, the most recent year for which data are available, 7,876 hate crimes were reported to the Federal Bureau of Investigation by agencies in 48 states and the District of Columbia (Federal Bureau of Investigation, n.d.). Of those incidents, racial bias motivated 56% of the crimes. Victims of religious bias represented 17% of the total number of victims; sexual orientation, 16%; and ethnicity or national origin, 11%. Crimes against persons accounted for 63% of the hate crime victims, whereas 37% were crimes against property. In 1999,802 of the reported hate crime incidents occurred in schools or colleges (Federal Bureau of Investigation, n.d.). Of those, 460 were incidents of racial bias, 56 incidents were motivated by bias against the victim's ethnicity

Research paper thumbnail of Creating Peace by Confronting Prejudice: Examining the Effects of a Multicultural Communication Skills Group Intervention

International Journal for the Advancement of Counselling, 2003

This study investigated the effects of a Multicultural Relationship Enhancement Workshop on Ameri... more This study investigated the effects of a Multicultural Relationship Enhancement Workshop on American education majors' ability to confront prejudice in order to create more peaceful communities in school settings. Due to the diverse group membership, participants were provided an opportunity to practice communication skills in a multicultural context that emphasized a social justice perspective. A repeated measures design with random assignment of participants to experimental (n = 26) and wait-list control (n = 22) groups was employed. Participants were studied at three different points in time, in five-week intervals, with the experimental group participating in the workshop during the first five-week interval and the control group receiving the treatment during the second five-week interval. The repeated measures analysis of variance revealed significant time by treatment interaction effects between Times 1 and 2 on a measure of communication skills in multicultural situations. The intervention is discussed in the context of policies that promote cultures of peace.

Research paper thumbnail of El pasado en el presente: la obra de Edgar Negret y Eduardo Ramírez-Villamizar

Ánima

Durante el siglo XX, la historia del arte colombiano y latinoamericano se encargó de revisar la o... more Durante el siglo XX, la historia del arte colombiano y latinoamericano se encargó de revisar la obra de los artistas Edgar Negret y Eduardo Ramírez-Villamizar desde la abstracción y los importantes cambios que su lenguaje geométrico generó en la escena artística colombiana. Pero a pesar de ser un tema recurrente en sus obras, sus títulos y sus discursos, el interés de estos artistas por el arte precolombino ha sido tratado de manera marginal. Este trabajo busca, entonces, analizar la manera en que Negret y Ramírez-Villamizar se enfrentaron a los artefactos precolombinos y cómo se evidencia este legado en su obra. De esta manera, se comprueba que, a través de la geometría y los materiales, los artistas colombianos buscan reconectar el pasado precolombino con el presente moderno, construyendo un puente que permita a lo precolombino ser incorporado en el arte moderno y considerado como una fuente por artistas venideros.

Research paper thumbnail of Numerical Steady and Transient Evaluation of a Confined Swirl Stabilized Burner

International Journal of Turbomachinery, Propulsion and Power, 2021

Lean premixed combustion technology became state of the art in recent heavy-duty gas turbines and... more Lean premixed combustion technology became state of the art in recent heavy-duty gas turbines and aeroengines. In combustion chambers operating under fuel-lean conditions, unsteady heat release can augment pressure amplitudes, resulting in component engine damages. In order to achieve deeper knowledge concerning combustion instabilities, it is necessary to analyze in detail combustion processes. The current study supports this by conducting a numerical investigation of combustion in a premixed swirl-stabilized methane burner with operating conditions taken from experimental data that were recently published. It is a follow-up of a previous paper from Farisco et al., 2019 where a different combustion configuration was studied. The commercial code ANSYS Fluent has been used with the aim to perform steady and transient calculations via Large Eddy Simulation (LES) of the current confined methane combustor. A validation of the numerical data has been performed against the available exper...

Research paper thumbnail of Prevención y atención, la mejor herramienta contra la violencia intra familiar existente en familias usuarias de los servicios de la comisaría de Familia en Engativá, atendidas durante el período comprendido entre el 2005 y 2006 en coordinación con Consultorio Social de Uniminuto

Research paper thumbnail of Multicultural Sensitivity and Interpersonal Skills Training for Preservice Teachers

The Journal of Humanistic Counseling, Education and Development, 2005

Teacher education students who participated in a Multicultural Relationship Enhancement program s... more Teacher education students who participated in a Multicultural Relationship Enhancement program showed signlfcant improvement in empathic listening and expressive speaking in conflictual multicultural situations No signzficant difference was found between participants and a wait-list control group on a measure of prepdice * * * In recent decades, the legal and social systems have been instrumental in curbing the overt expression of prejudice in the United States (Kendall, 1996). Nevertheless, prejudice has hardly been eradicated and remains a significant problem in American society (Sandhu & Aspy, 1997). The terrorist attacks on September 11,2001, were followed by a dramatic increase in hate crimes against Southeast Asians (CNN, 2001). More than 300 reports of harassment or abuse were received by the Council on American-Islamic Relations in the 2 days following the attacks, which is close to half the number received in the entire previous year. In 1999, the most recent year for which data are available, 7,876 hate crimes were reported to the Federal Bureau of Investigation by agencies in 48 states and the District of Columbia (Federal Bureau of Investigation, n.d.). Of those incidents, racial bias motivated 56% of the crimes. Victims of religious bias represented 17% of the total number of victims; sexual orientation, 16%; and ethnicity or national origin, 11%. Crimes against persons accounted for 63% of the hate crime victims, whereas 37% were crimes against property. In 1999,802 of the reported hate crime incidents occurred in schools or colleges (Federal Bureau of Investigation, n.d.). Of those, 460 were incidents of racial bias, 56 incidents were motivated by bias against the victim's ethnicity

Research paper thumbnail of Creating Peace by Confronting Prejudice: Examining the Effects of a Multicultural Communication Skills Group Intervention

International Journal for the Advancement of Counselling, 2003

This study investigated the effects of a Multicultural Relationship Enhancement Workshop on Ameri... more This study investigated the effects of a Multicultural Relationship Enhancement Workshop on American education majors' ability to confront prejudice in order to create more peaceful communities in school settings. Due to the diverse group membership, participants were provided an opportunity to practice communication skills in a multicultural context that emphasized a social justice perspective. A repeated measures design with random assignment of participants to experimental (n = 26) and wait-list control (n = 22) groups was employed. Participants were studied at three different points in time, in five-week intervals, with the experimental group participating in the workshop during the first five-week interval and the control group receiving the treatment during the second five-week interval. The repeated measures analysis of variance revealed significant time by treatment interaction effects between Times 1 and 2 on a measure of communication skills in multicultural situations. The intervention is discussed in the context of policies that promote cultures of peace.