109 research outputs found
Gypsy women overcoming social exclusion through education
.Las mujeres gitanas están expresando de muy diferentes Jormas su propio análisis de la discriminación que padecen, situando la educación como una de las vÃas más importantes para la superación de su exclusión social y económica. En la investigación que presentamos se parte de la premisa de que la mujer gitana es un sujeto activo dentro de la sociedad y dentro de su comunidad con capacidad de transJormar. El papel activo de la mujer gitana se reafirma aún más potenciando una educación para la convivencia entre hombres y mujeres y entre culturas en un plano de igualdad, de diálogo igualitario , en el que todas las voces tengan el mismo valor con la pretensión de llegar a consensos entre todas las partes. PolÃticas educati vas que contemplen también la diferencia cultural pero siempre desde el marco de la igualdad y no desde la homogeneidad; es decir, desde la igualdad de diferencias.Gypsy women are expressing their own analysis of the discrimination they suffer in very different ways. lVith education as one of the most vital resources to overcome social and
economic exclusion. The research presented is grounded in the premise that gypsy women are active players in society and their communities, endowed with the ability to transform. The acti
ve role of gypsy women is even further reafirmed by reinforcing education for coexistence among men and women, and cultures
on the basis of equality and egalitarian dialogue in which each voice is vested with the same value in an aim to reach consensus among all in volved parties. These are educational policies that also take up cultural differences but always from within the framework of equality, not homogeneity: that is from the equality of differences
Perfil epidemiológico e sociocultural dos pacientes atendidos no Ambulatório de Saúde IndÃgena do HUB (ASI/HUB) no ano de 2015
Trabalho de conclusão de curso (graduação)—Universidade de BrasÃlia, Faculdade de Ciências da Saúde, Departamento de Saúde Coletiva, Curso de Gestão em Saúde Coletiva, 2016.A abordagem deste trabalho de conclusão de curso (TCC) se insere na temática da qualidade da informação produzida pelos instrumentos de registro existentes no Ambulatório de Saúde IndÃgena para o acompanhamento dos usuários que lá são atendidos. Os instrumentos baseiam-se nas fichas de atendimento de usuários preenchidas no ano de 2015
Arbitrage Pricing Theory (APT) e variáveis macroeconômicas. Um estudo empÃrico sobre o mercado acionário brasileiro
This paper analyses monthly returns of 10 share portfolios negotiated at Bovespa between 1987 and 1997 in order to test the APT model. Macroeconomic factors were created as sources of common variance of these assets. The factors were statistically significant in explaining the relationship between the asset returns in general; besides, evidence was found in favor of the APT.
Influence of wind speed and ammonia concentration on its evaporation rate from aqueous solution spills
In the event of an accidental spill of an aqueous solution of ammonia, a toxic cloud can be generated, being the ammonia evaporation rate a key issue. In this communication, new experimental data have been obtained at different initial ammonia concentrations and air speeds. The evolution of the evaporation rate, of the ammonia concentration in the solution and of the solution temperature have been studied. Three phases have been clearly identified in the evaporation process, affected by the ammonia concentration, the evaporation rate and the condensation of water. A simple model has also been proposed, based on previous ones from the literature and now including the condensation of water. The proposed model has been compared with experimental data. Although some scattering has been found, it still proves itself useful at predicting the source term in the event of an accidental spill.Peer ReviewedPostprint (published version
Imidazolium based gemini amphiphiles derived from L-valine. Structural elements and surfactant properties
Imidazolium amphiphiles often display excellent surfactants properties, while amide functionalities and chirality can implement self-assembly. The introduction of these functionalities in imidazolium gemini amphiphiles is expected to allow tuning their aggregation, achieving a higher emulsifying capacity of interest for practical applications. L-valine-derived gemini surfactants have been prepared and their aggregation investigated using NMR, UV-CD, fluorescence, LS or microscopy. The imidazolium gemini amphiphiles synthetized, presented excellent surfactant properties. The aromatic substitution pattern defines additional geometric constrains facilitating a fine tune of their properties, displaying the para-substituted compound best properties. This can be associated to facilitating the required conformational organization of polar and apolar fragments, while reducing coulombic repulsions between imizadolium rings. Two critical aggregation concentrations (CACs) were observed by fluorescence in aqueous media, with the formation of well-defined vesicles in the second step. Dynamic equilibria between aggregates of different sizes seem to be present. These gemini surfactants revealed of interest as emulsifiers for oil/water systems and for controlled fragrance delivery using (R)-limonene as a benchmark volatile compound. (C) 2021 Elsevier B.V. All rights reserved.Peer reviewe
Una nueva especie trifoliolada de Arachis (Fabaceae) y comentarios adicionales sobre la sección taxonómica Trierectoides
Se describe una nueva especie de Arachis, con hojas trifolioladas, A. sesquijuga. Esta se diferencia de las otras especies trifolioladas, ambas con folÃolos ternados, por la presencia de un raquis evidente, lo que caracteriza a la hoja como pinnada. Datos históricos sobre la acumulación de conocimiento referente a las raras especies trifolioladas son comentados en secuencia cronológica
Open chain pseudopeptides as hydrogelators with reversible and dynamic responsiveness to pH, temperature and sonication as vehicles for controlled drug delivery
A new family of open chain-pseudopeptidic compounds displaying a pendant carboxylic group have been prepared with excellent yields. Their self-assembly has been studied under different conditions and in different media. Some of the compounds obtained have revealed to act as very efficient hydrogelators at low concentrations (CGC 1 mg mL−1). The resulting hydrogels show some interesting properties, including a high thermal stability, with the hydrogels maintaining their structure at temperatures above 65 °C, and their reversible dynamic sol–gel behavior being responsive to thermal and sonochemical inputs and to changes in the basic/acidic properties of the medium. Preliminary studies for controlled drug delivery have been carried out using a Franz Cell and employing a skin pig membrane, confirming that these Low Molecular Weight Gelators (LMWGs) can be appropriate vehicles for the controlled transdermal delivery of small-molecule drugs.Funding for open access charge: CRUE-Universitat Jaume
Supramolecularly assisted synthesis of chiral tripodal imidazolium compounds
A strong preference for the formation of tripodal systems over the related monotopic and ditopic compounds is observed for the reaction between tris(halomethyl)benzenes and imidazoles derived from
amino acids and containing an amide fragment. This preference allows the formation of the tripodal
derivative as the major product even when an equimolar mixture of the tris(halomethyl)benzene and the
imidazole is reacted (1 : 1 ratio instead of the stoichiometric 1 : 3 ratio). The reactions were monitored
using 1
H NMR spectroscopy and ESI mass spectrometry and kinetically characterized. Computational
studies were also performed in order to rationalize the observed preference of the tri-substituted
product. The results reveal the existence of well-defined supramolecular interactions between the imidazolium groups and the reacting imidazoles that facilitate the formation of the multitopic systems once the
first imidazolium group is formed. Analysis of the different structural components shows that the presence
of the amide group from the amino acid moiety is the key structural requirement for such supramolecular
assistance to take place. The preorganization of the supramolecular intermediates formed through hydrogen bonding interactions involving amide-NH fragments in imidazoles and bromide anions in imidazolium
groups seems to be also present at the corresponding TSs, decreasing the associated energy barriers
Mobile device based teaching. New challenges in architectural representation education. Case of study: The "Tianquis" in Tonalá, Jalisco, México
[EN] In this paper we discuss an educational research case of study centered on the visualization and ubiquitous access to educational material on multimedia mobile devices. The object of the study is the urban development and improvement project and the design of new street market stalls in Tonalá, Jalisco, Mexico. The educational experiment was conducted in a course of the Master’s Degree in Graphical Processes at the University of Guadalajara. In its evaluation, BLA (Bipolar Laddering Assessment) qualitative surveys, originated in user experience studies, were used as complementary methodologies to the quantitative analysis. After its development, analysis and evaluation, the authors can conclude that these new interactive visualization strategies are proven to motivate students, despite the requirement of a greater dedication time as a result of their complexity and technological novelty[ES] Presentamos un estudio de caso de investigación educativa centrado en la visualización y acceso a contenidos docentes de forma ubicua en dispositivos multimedia móviles. El tema de estudio es el proyecto de urbanización y mejora urbana junto con el diseño de nuevos puestos de venta ambulante en Tonalá, Jalisco, México. El experimento docente se ha llevado a cabo en un curso de maestrÃa en Procesos Gráficos de la Universidad de Guadalajara. En su evaluación hemos utilizado unas metodologÃas complementarias a los análisis cuantitativos mediante encuestas cualitativas BLA, Bipolar Laddering Assessment, originarias de los estudios de experiencia de usuario. Tras su desarrollo, análisis y evaluación podemos concluir que hemos demostrado que el uso de estas estrategias de visualización interactivas motivan a los estudiantes, incluso superando la necesidad de mayor tiempo de dedicación dada su complejidad y novedad tecnológicaExperimento financiado: VI Plan Nacional I+D, 2008-2011. Gobierno de España. Proyecto EDU-2012-37247/EDUCRedondo, E.; Fonseca, D.; Valls, F.; Olivares, A. (2016). Enseñanza basada en dispositivos móviles. Nuevos retos en la docencia de la representación arquitectónica. Caso de estudio: Los Tianguis de Tonalá, Jalisco, México. EGA. Revista de Expresión Gráfica Arquitectónica. 21(27):64-73. https://doi.org/10.4995/ega.2016.4730SWORD6473212
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