121 research outputs found
Uso y abuso de opioides en el tratamiento del dolor crónico
No full textCopa Prieto, Ana; director de proyecto: Galán Vázquez, Amalia2022-2023Grado en FarmaciaFacultad de Ciencias de la Salu
Viajantes ex-cêntricas nas histórias de Ana Miranda
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Literatura.No conjunto das narrativas ficcionais da escritora brasileira Ana Miranda, a temática da viagem # considerada uma das mais férteis da literatura ocidental de todos os tempos # ocupa um espaço de centralidade, podendo até mesmo ser vista como o mais importante eixo de estruturação de suas obras. O estudo realizado pela presente tese tem por objetivo analisar o tratamento dado ao tema da viagem nos romances Desmundo, O retrato do rei, Dias & Dias e Amrik, evidenciando que por intermédio das narradora-viajantes # Oribela, Mariana, Feliciana e Amina # a autora promove um diálogo entre diferentes culturas, gêneros, etnias e gerações, ao mesmo tempo em que estabelece um profícuo diálogo com o passado em sua invariante problematização concernente aos limites e cruzamentos entre o discurso ficcional e os discursos narrativos extraliterários que o cercam, sobretudo o histórico e o biográfico. In the whole of Brazilian writer Ana Miranda#s fictional narrative, the travel thematic # considered one of the most fertile themes of the western literature of all times # occupies a central space, and can even been seen as the most important structuring axis of Miranda#s works. The aim of the present thesis is to analyze the treatment given to the travel subject in the novels Desmundo, O retrato do rei, Dias & Dias and Amrik, emphasizing that, through the traveling narrators, Oribela, Mariana, Feliciana and Amina, the author promotes a connection between different cultures, genders, ethnics and generations, at the same time that establishes a profitable dialogue with the past in her invariant problematization concerning the limits and crossings between the fictional and the extra-literary narrative discourses that surrounds it, mainly the historical and the biographic ones
Evaluation of an anaerobic MBR as pretreatment for a CBMem system for the production and recovery of hydrogen from winery wastewater
No full textLas crecientes limitaciones de recursos han cambiado la perspectiva del enfoque de las aguas residuales; hoy en día, la provisión de tratamiento es igualmente importante que la recuperación de agua, nutrientes y energía [Veluhamy et al., 2021]. La producción de vino es una de las principales industrias de bebidas en Chile, sus aguas residuales si no son tratadas pueden generar contaminación del agua y degradación del suelo Ioannou et al., 2015]. Diversas tecnologías de tratamiento ofrecen una forma de convertir los recursos de las aguas residuales en productos comercializables. Algunos autores prefieren los métodos anaeróbicos para el tratamiento de aguas residuales y la recuperación de energía. La digestión anaeróbica combina cuatro pasos bioquímicos importantes para formar biometano o biohidrógeno. En los últimos años, el enfoque de la investigación se ha desplazado del metano al hidrógeno debido a su potencial como fuente de energía limpia inagotable, de bajo coste y renovable [Ngo et al., 2020].
El objetivo de este estudio fue modelar y simular un tren de tratamiento de aguas residuales vitinícolas y de generación de hidrógeno para implementar la tecnología de membranas bioactivas compuestas (CBMem) a escala real. La CBMem consiste en membranas de fibra hueca con bacterias acetogénicas encapsuladas; demostró ventajas en el rendimiento y la eficiencia de captura de hidrógeno [Prieto et al., 2016]. El afluente corresponde al agua residual generada en todas las etapas de la elaboración del vino y los requisitos del CBMem son una DQO soluble superior a 2000 mg/L y la eliminación de los sólidos en suspensión [Prieto et al., 2016]. El investigador realizó una revisión bibliográfica de diferentes biorreactores anaeróbicos. En resumen, un biorreactor anaeróbico de membrana (AnMBR) podría tratar las aguas residuales vitivinícolas y cumplir con las restricciones de la CBMem. Además, el autor revisó los parámetros operativos y de diseño que influyen en la producción de hidrógeno, los principales son el tiempo de retención hidráulico (HRT), el tiempo de retención de sólidos (SRT) y la tasa de carga orgánica (OLR). Los sólidos suspendidos en el licor mezclado (MLSS) influyen en el rendimiento de la membrana; por lo tanto, debe oscilar entre 10 y 20 g/L.
El autor construyó el modelo utilizando el software SIMBA, y simuló para SRT entre 2 y 15 días y para OLR en el rango de 10 a 30 kgCOD/m3 - d. En resumen, el pH y el hidrógeno inhibieron totalmente los procesos de oxidación anaeróbica, y el pH inhibió parcialmente la fermentación, por lo tanto, el modelo de digestión anaeróbica describió los procesos críticos para la implementación del CBMem. Los resultados demostraron que a mayor SRT, mayor producción de hidrógeno, y que el incremento de OLR promueve el mecanismo de inhibición de la actividad metanogénica. El investigador seleccionó un SRT de 7 días y un OLR de 21 kgCOD/m3-d para operar el AnMBR. Las principales ventajas de la aplicación del AnMBR en la industria vitivinícola son una eliminación del 23% de la DQO y una producción de hidrógeno de 821 m3/d. El hidrógeno producido puede transformarse en energía, y la energía disponible podría cubrir hasta el 1,4% de la demanda de la bodega.The increasing resource limitations have changed the perspective of wastewater focus;
nowadays, the provision of treatment is equally essential to the recuperation of water, nutrients,
energy, and other by-products [Veluhamy et al., 2021]. Wine production is one of the leading
beverage industries in Chile; its wastewater generates water pollution and soil degradation if not
treated [Ioannou et al., 2015]. Various treatment technologies offer a way to convert the
resources from wastewater into marketable products. Some authors prefer the anaerobic methods
for wastewater treatment and energy recovery. Anaerobic digestion combines four significant
biochemical steps to form biomethane or biohydrogen. Over the last years, the research focus
has shifted from methane to hydrogen due to its potential as an inexhaustible, low-cost, and
renewable source of clean energy [Ngo et al., 2020].
The objective of this study was to model and simulate a winery wastewater treatment and
hydrogen generation train to implement full-scale composite bioactive membrane technology
(CBMem). The CBMem consists of hollow fiber membranes with encapsulated acetogenic
bacteria; it demonstrated advantages in yield and hydrogen capture efficiency [Prieto et al.,
2016]. The influent corresponded to the wastewater generated from all the stages of the
winemaking, and the CBMem requirements were a soluble COD higher than 2000 mg/L and the
removal of the suspended solids [Prieto et al., 2016]. The researcher performed a literature
review of different anaerobic bioreactors. In summary, an anaerobic membrane bioreactor
(AnMBR) could treat winery wastewater and fulfill the CBMem restrictions. Besides, the author
reviewed the operational and design parameters that influence hydrogen production. The main
variables are hydraulic retention time (HRT), solids retention time (SRT), and organic loading
rate (OLR). The mixed liquor suspended solids (MLSS) influence the membrane performance;
therefore, it should be range between 10 and 20 g/L.
The author built the model using the SIMBA software and simulated for SRT between 2 to
15 days and for OLR in the range of 10 to 30 kgCOD/m3
–d. In summary, pH and hydrogen
inhibited the anaerobic oxidation processes entirely, and pH partially inhibited the fermentation;
therefore, the anaerobic digestion model described the critical processes for the CBMem
implementation. A high SRT allows higher hydrogen productions; therefore, operating at a
higher SRT is advisable. The OLR increment promotes the inhibitory mechanism of the
methanogenic activity; therefore, it is advisable to operate at a higher OLR. The researcher
selected an SRT of 7 days and an OLR of 21 kgCOD/m3-d to operate the AnMBR. The principal
advantages of implementing the AnMBR in the wine production industry are 23% of COD
removal and hydrogen production of 821 m3/d. The hydrogen produced could be transformed
into energy, and the available energy could cover up to 1.4% of the winery demand.Versión original del auto
Scale dependency of ectomycorrhizal fungal community assembly processes in Mediterranean mixed forests
No full text© The Author(s) 2022. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.The assembly of biological communities depends on deterministic and stochastic processes whose influence varies across spatial and temporal scales. Although ectomycorrhizal (ECM) fungi play a key role in forest ecosystems, our knowledge on ECM community assembly processes and their dependency on spatial scales is still scarce. We analysed the assembly processes operating on ECM fungal communities associated with Cistus albidus L. and Quercus spp. in Mediterranean mixed forests (Southern Spain), for which root tip ECM fungi were characterized by high-throughput sequencing. The relative contribution of deterministic and stochastic processes that govern the ECM fungal community assembly was inferred by using phylogenetic and compositional turnover descriptors across spatial scales. Our results revealed that stochastic processes had a significantly higher contribution than selection on root tip ECM fungal community assembly. The strength of selection decreased at the smallest scale and it was linked to the plant host identity and the environment. Dispersal limitation increased at finer scales, whilst drift showed the opposite pattern likely suggesting a main influence of priority effects on ECM fungal community assembly. This study highlights the potential of phylogeny to infer ECM fungal community responses and brings new insights into the ecological processes affecting the structure and dynamics of Mediterranean forests.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was supported by the project COEXMED-II (grant CGL2015-69118-C2-2P) founded by the Spanish Ministry for Economy and Competitiveness (MINECO). J. P. R. held a pre-doctoral fellowship awarded by MINECO (grant BES2016–078055). A. L. G was supported by the University of Jaén under the Plan 6-UJA post-doctoral fellowship.Peer reviewe
Plant traits and phylogeny predict soil carbon and nutrient cycling in mediterranean mixed forests
No full textOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.This work was supported by the project COEXMED-II (CGL2015-69118-C2-1P and CGL2015-69118-C2-2P) founded by the Spanish State Research Agency (AEI). J.P.R. and A.P. held pre-doctoral fellowships awarded by AEI (BES2016-078055 and BES-2016-077688, respectively)Peer reviewe
Introduction to Mexican Music for Solo Cello (1962-2014) from a Performer's Perspective
No full textThis paper examines fifty-two Mexican solo cello works (and also three works written for two cellos, one written for cello and actor, and one written for cello and tape), all of which were acquired over a four-year course of research. All of these works were composed in the modern or avant-garde style between 1962 and 2014 and represent a lesser-known area of Mexican music. During the period from 2013 through 2014, eleven works were given to the author by Carlos Prieto, thirty-five works were obtained directly from composers, and five works came from library consultations during research trips to Mexico: at the National Library in Mexico City, at the National Center for Investigation and Documentation of Music in Mexico (CENEDIM), and at the National Center for the Arts in Mexico (CENART).
Introduction to Mexican Music for Solo Cello (1962-2012) from a Performer’s Perspective documents an interdisciplinary approach to research: interactions and interviews with living Mexican composers, analysis and thoughts on interpretation of works by those composers, compilation of a list of works for solo cello written between 1962 and 2014 based on Adventure of a Cello by Carlos Prieto, Influence of Carlos Prieto on Contemporary Cello Repertoire by A.S. Saucedo Estrada, and the author’s research.
The paper focuses on the vital contribution of cellist Carlos Prieto to the growth and proliferation of contemporary Mexican cello music. The paper includes documented interviews by the author with prominent composers and artists in Mexico including Carlos Prieto, Manuel de Elias, Ana Lara, Max Lifchitz, Samuel Máynez, Lucia Álvarez, Radko Tichavský, and Iracema de Andrade.
This research is the first of its kind to document Mexican works for solo cello and to provide background analysis of these works from a performer’s perspective.
All of the pieces covered in this project have yet to make a significant impact on the wider world or on professional cellists outside of Mexico.D.M.A
Introduction to Mexican Music for Solo Cello (1962-2014) from a Performer's Perspective
No full textThis paper examines fifty-two Mexican solo cello works (and also three works written for two cellos, one written for cello and actor, and one written for cello and tape), all of which were acquired over a four-year course of research. All of these works were composed in the modern or avant-garde style between 1962 and 2014 and represent a lesser-known area of Mexican music. During the period from 2013 through 2014, eleven works were given to the author by Carlos Prieto, thirty-five works were obtained directly from composers, and five works came from library consultations during research trips to Mexico: at the National Library in Mexico City, at the National Center for Investigation and Documentation of Music in Mexico (CENEDIM), and at the National Center for the Arts in Mexico (CENART).
Introduction to Mexican Music for Solo Cello (1962-2012) from a Performer’s Perspective documents an interdisciplinary approach to research: interactions and interviews with living Mexican composers, analysis and thoughts on interpretation of works by those composers, compilation of a list of works for solo cello written between 1962 and 2014 based on Adventure of a Cello by Carlos Prieto, Influence of Carlos Prieto on Contemporary Cello Repertoire by A.S. Saucedo Estrada, and the author’s research.
The paper focuses on the vital contribution of cellist Carlos Prieto to the growth and proliferation of contemporary Mexican cello music. The paper includes documented interviews by the author with prominent composers and artists in Mexico including Carlos Prieto, Manuel de Elias, Ana Lara, Max Lifchitz, Samuel Máynez, Lucia Álvarez, Radko Tichavský, and Iracema de Andrade.
This research is the first of its kind to document Mexican works for solo cello and to provide background analysis of these works from a performer’s perspective.
All of the pieces covered in this project have yet to make a significant impact on the wider world or on professional cellists outside of Mexico.D.M.A
Is demand for polluting goods manageable? an econometric study of car ownership and use in Mexico
No full textCharging for social marginal costs is efficient regardless of price elasticities, but the importance of getting prices"right"is greater the more manageable, or elastic, the demand. In efficient pollution control programs, options to make cars cleaner are combined optimally with demand conservation. The roles played by"cleaner cars"as compared with"fewer trips"are determined by empirical parameters: cheap, clean technologies would imply a great role for cleaner cars, while high demand elasticities lead to a greater role for demand reduction. In seminal research, evisence was found to support the hypothesis that demand for commodities such as gasoline should have lower price elasticities and higher income elasticities in developing than in industrial countries. The authors estimate a model of gasoline demand and car ownership in Mexico, using a panel of annual observations by state. Key features they introduce are instrumental variables on different data and the treatment of (1) possible dynamics, (2) measurement errors in the data, and (3) unobserved characteristics in individual states. They use tests of serial correlation in the residuals to model the dynamics properly. The resulting model is one of almost immediate adjustment, with a short-term price elasticity for gasoline close to the long-term estimate of -0.8. The model displays elasticities that are lower (for income) and higher (for price) than those hypothesized, and are within the range of elasticities found in industrial countries. Byproducts of the model: The elasticity of car purchases with respect to gasoline prices is positive. Scrappage decisions are affected by income and by car and gasoline prices. And these elasticities are not significantly different in the richer states. For policy purposes, these findings do not support"elasticity pessimism"The use of car services is sensitive to pricing, which suggests that consumers, for some of their demand, have reasonably good alternatives to car services. Consideration of external costs - such as accidents, congestion, air pollution, and road damage - thus involve considerable demand conservation.Inequality,Transport and Environment,Energy and Environment,Economic Theory&Research,Environmental Economics&Policies
Espacios de la Ciudad de México. 75-76 Nueva Época (2004) julio-diciembre. Antropología. Boletín Oficial del Instituto Nacional de Antropología e Historia
No full text- Los lugares de una megaciudad, una introducción por Abilio Vergara Figueroa. - Etnografía de un barrio obrero: La Fama, Tlalpan por María Ana Portal. - Entre la tradición y el anonimato. Etnografía de la identidad urbana en un barrio de la colonia Roma por Daniel Hernández Rosete. - Habitar en el Centro Histórico, detrás de los monumentos por Reyna Sánchez Estévez. - Vecindad, condominio y modernidad: etnografía de un proceso por Anja Clara Novell y Hugo Sánchez Arteaga. - Pequeñas iluminaciones sobre la ciudad: el parque Los Coyotes por Abilio Vergara Figueroa. - La Alameda y la plaza de la Solidaridad. Exploraciones desde el margen por Sara Makowski. - La Ciudadela: de la tragedia histórica al disfrute de la ciudad por Amparo Sevilla. - La plaza de las Vizcaínas: socialidad y conflicto por Isaura C. García López. - El zapatista por Lucio Ernesto Maldonado Ojeda. - Razón y proporción del Gran Teatro Nacional de Santa Anna por Hugo Arciniega. - Etnografía de urgencia: el hospital Xoco por Alí Ruiz Coronel. - La pulquería como lugar de encuentro: el caso de La Pirata por Ernesto Licona Valencia. - Para una mañana fría o una noche lluviosa, una taza de chocolate en El Moro por Judith Katia Perdigón Castañeda. - La línea tres del metro de la Ciudad de México: espacios y usuarios por Olivia Domínguez Prieto. - El Sistema de Transporte Colectivo metro de la Ciudad de México: un espacio diverso por Melissa García Meraz. - La Ciudad de México como supermercado para transeúntes por Mauricio García. - Etnografía de la manifestación pública: la megamarcha por la Soberanía Nacional por Xóchitl Cruz-Guzmán y Sergio Tamayo. - De la marcha por la Dignidad a la marcha de la Paz por Aída Analco Martínez. - La órbita de la capital mexicana y la crisis de la nación en 1848 por Esteban Sánchez de Tagle. - El “esto es” de una vida por Graciela de Garay
Poesía y publicidad en Ana Rossetti: una lectura desde la ironía desmitificadora
No full textAna Rossetti is the author of two epigrams emerged from the ekphrastic reading and from the intermedial transposition of two advertisements: "Chico Wrangler" and the visual poem "Calvin Klein Underwear." Beyond gender writing and beyond postmodern metarepresentation, which don’t clarify the complete meaning of the two poems, we want to go into detail about the fact that resources such as irony, juxtaposition and the baroque language are not just a formal suit, but they define a parody of the commercialization of the scopophilia promoted in advertising.
To this end, after a quick look on the poetic career of Rossetti, we will see how she expresses her heterodoxy by the ironic demystification of postmodern social order, which imposes the illusory inveiglement of pleasure and desire.Ana Rossetti es autora de dos epigramas surgidos de la lectura ecfrástica y de la transposición intermedial de sendos anuncios publicitarios: “Chico Wrangler” y el poema visual “Calvin Klein Underwear”. Más allá de la escritura de género y de la metarrepresentación postmoderna que no aclaran por completo el significado de los dos poemas, queremos profundizar en el hecho de que recursos como la ironía, la yuxtaposición y el barroquismo no se limitan al juego formal, sino que conforman una parodia de la mercantilización de la escopofilia fomentada en la publicidad.
Con esta finalidad, tras un rápido recorrido por la trayectoria poética de Rossetti, veremos cómo la autora expresa su heterodoxia mediante la desmitificación irónica del orden social postmoderno, que impone la ilusoria fascinación del placer y del deseo
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