1,509 research outputs found
Powdery mildew development is positively influenced by grapevine vegetative growth induced by different soil management strategies
No full textLolas-Caneo, M (Lolas-Caneo, Mauricio). Univ Talca, Fac Ciencias Agr, Fruit Pathol Lab, Talca, Chile.In various crop species, high levels of powdery mildew infection and severity have been associated with high vegetative vigour. In grapevine this relationship has also been observed by vine growers, though it has not been quantified. This study was undertaken to investigate the relationship between the development of powdery mildew on leaves and berries and canopy growth, and thus to quantify the relationship between the pathogen and its host. Over a two-year period (2005 and 2006), an experiment was carried out in a vineyard (cv. Aranel) near Montpellier, southern France. Several levels of canopy growth were generated by implementing four soil management strategies: i) perennial cover crop in the inter-row, ii) annual cover crop in the inter-row, iii) chemical weed control over the entire soil surface, iv) chemical weed control all over the soil surface and drip irrigation and fertilization in the row. Powdery mildew was artificially inoculated on experimental sub-plots with Erysiphe necator [Schw] Burr. conidia. The most vigorous vines developed a larger number of diseased leaves and a higher percentage of mildewed berries compared to low-vigour vines. The major explanatory variable highlighted in these experiments was the shoot leaf number, mainly early in the season. A higher leaf population generated a larger number of powdery mildew colonies close to grapes and consequently a higher probability of berry infection. Our experimental results provide evidence of a positive relationship between powdery mildew development and grapevine vegetative development. These results provide an opportunity to develop new IPM strategies in vineyards. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved
Reconstructing Beethoven: Mauricio Kagel’s Ludwig van
No full textThe subject of this dissertation is Ludwig van, Mauricio Kagel’s tribute to Beethoven on the occasion of the 200th anniversary of the latter’s birth, which consists of three separate, but closely related, versions: a film, a musical score and a recording. The main aim of this project is to analyse the performance problems that musicians have to face when realising the score Ludwig van, which is an entirely indeterminate collage of Beethoven’s music, and to suggest ways of tackling them. For this purpose, all three versions of the work are studied in this thesis. The film is examined in terms of the issues it raises concerning Beethoven’s reception and of the function of its music, which consists of unusual performances of Beethoven’s works. The score is analysed from the perspective of postmodern theory and 20th-century art movements, while the roles of the composer and the performer are discussed and redefined. The recording is studied as a sample of how Kagel himself chose to realise his own score. Finally, the difficulties I encountered in my own attempts to realise Ludwig van are discussed, and the ways in which I dealt with them are presented. The conclusion at which this dissertation arrives is that, in works of such indeterminacy as Ludwig van, the performers are required to step outside their conventional role and act partly as composers. Compared to works that are considered challenging to the performer in the conventional sense, of requiring technical virtuosity, this work presents a more fundamental challenge, which has to do with overcoming personal boundaries: it asks the performer not to execute a pre-composed work, but to create their own version of Ludwig van. Since very little has been written about Ludwig van by performers with an academic background, this thesis can offer valuable assistance to prospective performers of the work in their attempt to balance between the highly charged conceptual aspect of the composition and the practical need to achieve its successful performance
Biblioteca Carlos Gaviria Díaz (Da série “Ver o mundo arder”)
No full textTitle: Carlos Gaviria Díaz Library(From the series “Watching the World Burn”)Author: Daniel Mauricio Correa VelásquezPseudonym: Pablo FracassoTechnique: Oil on canvasDimensions: 170 × 120 cmYear: 2025Título: Biblioteca Carlos Gaviria Díaz(De la serie “Ver el mundo arder”)Autor: Daniel Mauricio Correa VelásquezPseudónimo: Pablo FracassoTécnica: Óleo sobre lienzoDimensiones: 170 × 120 cmAño: 2025Título: Biblioteca Carlos Gaviria Díaz(Da série “Ver o mundo arder”)Autor: Daniel Mauricio Correa VelásquezPseudónimo: Pablo FracassoTécnica: Óleo sobre telaDimensões: 170 × 120 cmAno: 202
How personal experience modulates the neural circuitry of memories of September 11
No full textBrown and Kulik [Brown R, Kulik J (1977) Cognition 5:73–99] introduced the term “flashbulb memory” to describe the recall of shocking, consequential events such as hearing news of a presidential assassination. They proposed that the vivid detail of such memories results from the action of a unique neural mechanism. In the present study of personal recollections of the terrorist attacks of September 11, 2001 (9/11) in New York City, we combine behavioral and brain imaging techniques, with two goals: (i) to explore the neural basis of such memories and (ii) to clarify the characteristics of the emotional events that may give rise to them. Three years after the terrorist attacks, participants were asked to retrieve memories of 9/11, as well as memories of personally selected control events from 2001. At the time of the attacks, some participants were in Downtown Manhattan, close to the World Trade Center; others were in Midtown, a few miles away. The Downtown participants exhibited selective activation of the amygdala as they recalled events from 9/11, but not while they recalled control events. This was not the case for the Midtown participants. Moreover, only the Downtown participants reported emotionally enhanced recollective experiences while recalling events from 9/11, as compared with control events. These results suggest that close personal experience may be critical in engaging the neural mechanisms that underlie the emotional modulation of memory and thus in producing the vivid recollections to which the term flashbulb memory is often applied.This is an electronic version of the article published in Proceedings of the National Academy of Sciences, 104(1):389-394, 2007. The published article is available at http://www.pnas.org/content/104/1/389.abstractThis work was supported by National Institutes of Health Grant MH62104 (to E.A.P.)and by The Beatrice and Samuel A. Seaver Foundation.Peer reviewe
El Tlacuache Núm. 418 (2010). 418 Año 10 (2010) mayo. El Tlacuache
No full textCuchillos de piedra por Mauricio Valencia Escalante. -La cerámica y la arqueología por Ivonne E. Giles Flores
El Tlacuache Núm. 473 (2011). 473 Año 11 (2011) junio. El Tlacuache
No full textEl último balcón colonial en esquina de Cuernavaca por Mauricio Valencia Escalante. -El mural de “La Confesión” en el convento de Tlaquiltenango por Laura Elena Hinojosa
El Tlacuache Núm. 398 (2010). 398 Año 10 (2010) enero. El Tlacuache
No full textNotas históricas sobre la zoología mexicanasenta por Eduardo Corona Martínez. -HERNÁN PÉREZ DE OLIVA: Historia de la invenciónde las Indiasrés por Rafael Gutiérrez Yáñez. -Herramientas de ayer y hoy por Mauricio Valencia Escalante
El Tlacuache Núm. 477 (2011). 477 Año 11 (2011) julio. El Tlacuache
No full text¿Cada chango en su mecate? Apuntes para un aniversario de "La ascendencia del hombre por Eduardo Corona Martínez. -La figurilla femenina de Tequesquitengo-Venado por Georgia Yris Bravo López, Mauricio Valencia Escalante
Masculine Violence and Homoeroticism: from Mauricio Wacquez to Daniel O’Hara
No full textAnalysis of a pioneering novel in the representation of male homoeroticism, Ella o el sueño de nadie (1983), by Chilean author Mauricio Wacquez, in contraposition to the short story “Rapsodia metropolitan” (2007), by Barcelonese writer Daniel O’Hara, both published in “La sonrisa vertical” [“Vertical Smile”], one of the most important Hispanic erotic collections of the last quarter of the 20th century. These fictions, focused on the representation of a violent heterodox masculinity –and published almost a quarter of a century apart– and transgressive because of their visibilization of homoerotic practices, are still far from any type of vindication of a minority sexuality
Minnenas materialitet i Breven som aldrig kom av Mauricio Rosencof
No full textThe aim of this article is to analyze the reconstruction of the family genealogy and personal identity that the Uruguayan author Mauricio Rosencof carries out the novel The letters that never came. The materiality of memory plays an important role in The letters that never came; the superimposed stories are configured by means of spaces and objects linked to the infancy of the protagonist as well as to the family history. In the novel a double play is installed in which the referential immediacy is combined with complex strategies of fictionalization analyzed in three parts, corresponding to the most important commemorative pieces in the novel: the family pictures, the letters and the word
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