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Search Results: 1 - 10 of 75168 matches for " José Alejandro; "
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Analysis by Fourier transform infrared spectroscopy of Johnstonia (Corystospermales, Corystospermaceae) cuticles and compressions from the Triassic of Cacheuta, Mendoza, Argentina
D`angelo,José Alejandro;
Ameghiniana , 2006,
Abstract: spectroscopic information (functional groups and semi-quantitative data) of corystosperm cuticles and compressions from the triassic of cacheuta, mendoza, argentina, is reported for the first time. fossil leaves of johnstonia spp. (corystospermales, corystospermaceae) were analyzed by fourier transform infrared spectroscopy (ft-ir) in an attempt to identify spectroscopic patterns that would characterize these taxa. infrared spectra obtained from cuticles and compressions of johnstonia spp. showed a relatively rich aliphatic structure as well as hydroxyl, carbonyl and some other oxygen-containing functional groups. semi-quantitative data derived from ft-ir spectra were statistically analyzed using one-way analysis of variance test (anova). in the three taxa studied herein, one-way anova revealed significant differences between cuticles and their corresponding compressions regarding the ch2/ch3 ratio (p < 0.05). considering the ft-ir-derived ratios ch2/ch3, al/ox, ox1/ox2 and c-h/c=o, there were not significant differences (p > 0.05) between abaxial and adaxial surfaces in the cuticular samples of johnstonia coriacea var. coriacea (johnston) walkom here studied. infrared-derived ratios here considered (ch2/ch3, al/ox and ar/al) in compression samples did not differ significantly from one taxon to the other (p > 0.05). however, cuticular specimens of johnstonia spp. showed statistical differences (p < 0.05) among the taxa studied, considering ch2/ch3, ox1/ox2 and c-h/c=o ratios. although these results are suggestive of the likely application of ft-ir technique to the chemotaxonomic study of the corystospermaceae, more data are needed before obtaining definitive conclusions.
El documental de los a?os sesenta como arte: consideraciones de la película Crónica de un verano
López,José Alejandro;
Palabra Clave , 2011,
Abstract: in the past century, new forms of documentary emerged during the decade of the sixties, like those of the cinema verité, the direct cinema and the free cinema. several studies consider these proposals a direct consequence of technological advances; taking away importance to other aspects. the objective of this text is to observe other influences, particularly regarding the performance. for this end, the documentary chronique d'un été, by jean rouch and edgar morin, is analyzed as a performance.
Mediación de la comprensión lectora de textos literarios en educación básica
Castillo Sivira,José Alejandro;
Paradígma , 2011,
Abstract: in attention to upel (1996) the language and literature teacher have to show abilities to deal with cognitive processes for reception and production of different kind of texts. so, who trains to the future teacher, should lead and strength the didactic planning process. the purpose, to share a university didactic experience at ipb, which came up integrated and programmed tools for the future teachers. this point of view implies the use of different strategies to deal with reading comprehension at the third level of venezuelan primary school. thus, and instructional guide based on upel and una (1999), panchí (1999), aguilar (2006), fraca (2003) and plan liceo bolivariano (2004) was elaborated by 37 students of didáctica de la especialidad course. this is a participative-action investigation and the instruments used to analyze the data were the daily register, the estimation scale, the categorization and the triangle approach. the conclusions of this study recommend the design of didactic guides based on global and instructional programming proposals.
El documental de los a os sesenta como arte: consideraciones de la película Crónica de un verano
José Alejandro López
Palabra Clave , 2011,
Abstract: En la década de los sesenta del siglo pasado emergieron nuevas formas de cine documental, entre ellas el cinema verité, el direct cinema y el free cinema. Diversos estudios consideran estas propuestas una consecuencia directa de los avances tecnológicos, al restar importancia a otras condiciones. El objetivo de este texto es observar otras influencias, como la que tuvo el performance. Para esto, se realiza un análisis del documental Crónica de un verano, de Jean Rouch y Edgar Morin, como un performance.
La antropología: hechos y nociones. Comentarios sobre la relatividad de las observaciones y de las nociones en antropología
José Alejandro Ortiz Rescaniere
Anthropologica , 1996,
Abstract: Esta nota no presenta resumen.
En torno al individuo andino: imágenes e identificaciones
José Alejandro Ortiz Rescaniere
Anthropologica , 1996,
Abstract: Este artículo no presenta resumen.
Imperfecciones, demonios y héroes andinos
José Alejandro Ortiz Rescaniere
Anthropologica , 1986,
Abstract: Este artículo no presenta resumen.
Rese a: Christiane Paul: Digital Art
López, José Alejandro
Cuadernos de Música, Artes Visuales y Artes Escénicas , 2010,
Abstract: Review of the book Digital Art, by Christiane Paul (Second ed. London: Thames & Hudson Ltd, 2008.)
José Alejandro Zavala Hurtado
Boletín de la Sociedad Botánica de México , 2009,
Controlador empotrado en FPGA para Sistema Inteligente de Transporte
Alejandro Cabrera Aldaya,Alejandro José Cabrera Sarmiento
Ingenier?-a Electr?3nica, Autom??tica y Comunicaciones , 2011, DOI: 10.1234/rielac.v32i3.92
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