La leyenda de la llorona en La guerra gaucha de Leopoldo Lugones

Dentro del contexto de unión e identidad latinoamericanas, se hace indispensable revisar los textos literarios del pasado en donde se intentaron dar muestras de las prácticas culturales y religiosas previas a los procesos de conquista e independencia. Es así como la figura de la llorona aparece, en este cuento de Lugones, en la época de las "guerras gauchas", aunando elementos tanto criollos como indígenas, transformándose en un ícono nacional. Hay, entonces, un proceso de apropiación de lo autóctono que remite a la patria grande, pero también una singularización que remite a un movimiento nacionalista.

Leopoldo Lugones, El ángel de la sombra. Buenos Aires, Editorial Losada, 1994, Estudio preliminar de María Teresa Gramuglio, 237 páginas

Fil: Dalmaroni, Miguel Angel. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Poesía y cristianismo en los años treinta. Laberinto de amor de Leopoldo Marechal

En la década del treinta, el catolicismo se instala fuertemente en Latinoamérica bajo la consigna de "recristianizar" la sociedad. En el caso argentino, Leopoldo Marechal realiza un camino que, guiado por crisis espirituales, lo lleva a abandonar los fundamentos vanguardistas para lanzarse a la búsqueda de la belleza, la armonía y el orden, aunando fe y estética en su escritura poética. En este contexto, Laberinto de amor de 1936, al inscribirse anacrónicamente dentro de la tradición cristiano-medieval, moldea un poeta que, como émulo del Creador divino, liga el presente con la eternidad, postulando la necesidad de forjar una comunidad de amor y entrega hacia el otro

El ciclo del conocimiento en la producción de maíz (Zea mays L.)

El estudio tuvo por objeto caracterizar el ciclo del conocimiento en la producción de maíz (Zea mays L.). Venezuela tiene una importante producción de este rubro que forma parte de su dieta diaria. El conocimiento se crea, se almacena, se transfiere, se aplica y se preserva, en un ciclo que tiene la finalidad de incrementar la competitividad y sustentabilidad de las organizaciones. Se dise- ñó y aplicó una encuesta de 36 ítems a una muestra de 234 productores. El índice de conocimiento fue de 69,78% y el índice de percepción de resultados fue de 76,06%, encontrándose una relación positiva entre ambas variables. Se evidenció la ocurrencia del ciclo del conocimiento en cuatro etapas en las que interactuaron medios explícitos y tácitos

Romance nueuo, donde se declara el memorable sitio, que el año 1683, preso el Gran Turco Mahometano a la... Corte de Viena y asimismo la sangrienta batalla y... victoria que logro el... Señor Leopoldo Primero... Emperador de los Christianos

A comienzo de texto grab. xil

Short-term effects of four tillage practices on soil physical properties, soil water potential, and maize yield

The area cultivated using conservation tillage has recently increased in central Spain. However, soil compaction and water retention with conservation tillage still remains a genuine concern for landowners in this region be- cause of its potential effect on the crop growth and yield. The aim of this research is to determine the short- term influences of four tillage treatments on soil physical properties. In the experiment, bulk density, cone index, soil water potential, soil temperature and maize (Zea mays L.) productivity have been measured. A field experiment was established in spring of 2013 on a loamy soil. The experiment compared four tillage methods (zero tillage, ZT; reservoir tillage, RT; minimum tillage, MT; and conventional tillage, CT). Soil bulk density and soil cone index were measured during maize growing season and at harvesting time. Furthermore, the soil water potential was monitored by using a wireless sensors network with sensors at 20 and 40 cm depths. Also, soil temperatures were registered at depths of 5 and 12 cm. Results indicated that there were significant differ- ences between soil bulk density and cone index of ZT method and those of RT, MT, and CT, during the growing season; although, this difference was not significant at the time of harvesting in some soil layers. Overall, in most soil layers, tillage practice affected bulk density and cone index in the order: ZT N RT N MT N CT. Regardless oftheentireobservationperiod,results exhibited that soils under ZT and RT treatments usually resulted in higher water potential and lower soil temperature than the other two treatments at both soil depths. In addition, clear differences in maize grain yield were observed between ZT and CT treatments, with a grain yield (up to 15.4%) increase with the CT treatment. On the other hand, no significant differences among (RT, MT, and CT) on maizeyieldwerefound.Inconclusion,the impact of soil compaction increase and soil temperature decrease,pro- duced by ZT treatment is a potential reason for maize yield reduction in this tillage method. We found that RT could be certainly a viable option for farmers incentral Spain,particularly when switching to conservation tillage from conventional tillage. This technique showed a moderate and positive effect on soil physical properties and increased maize yields compared to ZT and MT, and provides an opportunity to stabilize maize yields compared to CT.

Variabilidade espacial de uma cultura de milho (Zea mays): influência da distribuiçao vertical de semente

Com o objetivo de estudar a influência da distribuição vertical de semente na variabilidade espacial da implantação de uma cultura de milho em diferentes sistemas de preparação do solo (mobilização convencional, mobilização mínima e sementeira direta), realizaram-se nas campanhas de 2011 e 2012 dois ensaios de campo na região do Alentejo. A avaliação da distribuição vertical de semente fez-se pela determinação da profundidade de sementeira medindo o comprimento do mesocótilo em plântulas de milho. Em sementeira direta foram ainda testadas duas velocidades de trabalho. Os resultados demonstraram que o melhor desempenho de distribuição vertical da semente foi conseguido em sementeira direta com o aumento de velocidade de trabalho de 4 para 6 km h-1 (com um coeficiente de variação, CV, de 10,1%). Uma ANOVA de duplo fator demonstrou que a resistência mecânica do solo e a velocidade de trabalho determinaram diferenças significativas na profundidade de sementeira; a profundidade de sementeira causou diferenças significativas no tempo médio (TME) e percentagem de emergência (PE) da cultura. Os elevados CV observados sugerem a necessidade de uma melhor calibração dos dispositivos de controlo de profundidade dos semeadores por parte dos operadores em campo ou o aperfeiçoamento dos mesmos.

Epistolario de Leopoldo Balbás a Antonio Gallego Burín

Epistolario de Leopoldo Balbás a Antonio Gallego Burín

Proyecto de mejora de la calidad del paisaje urbano del distrito de Tetuán: Plaza Poeta Leopoldo de Luis

descripción Proyecto de Mejora del Paisaje Urbano en Tetuán

Sermon en la solemnidad que la Santa Metropolitana Iglesia de Valencia celebro... por el casamiento de la... Infanta de España Doña Margarita de Austria, con el... Emperador Leopoldo Primero... [Texto impreso]

Sign.: A-B4, C3

Characterization of maize (Zea mays L.) Wee1 and its activity in developing endosperm

We report the characterization of a maize Wee1 homologue and its expression in developing endosperm. Using a 0.8-kb cDNA from an expressed sequence tag project, we isolated a 1.6-kb cDNA (ZmWee1), which encodes a protein of 403 aa with a calculated molecular size of 45.6 kDa. The deduced amino acid sequence shows 50% identity to the protein kinase domain of human Wee1. Overexpression of ZmWee1 in Schizosaccharomyces pombe inhibited cell division and caused the cells to enlarge significantly. Recombinant ZmWee1 obtained from Escherichia coli is able to inhibit the activity of p13suc1-adsorbed cyclin-dependent kinase from maize. ZmWee1 is encoded by a single gene at a locus on the long arm of chromosome 4. RNA gel blots showed the ZmWee1 transcript is about 2.4 kb in length and that its abundance reaches a maximum 15 days after pollination in endosperm tissue. High levels of expression of ZmWee1 at this stage of endosperm development imply that ZmWee1 plays a role in endoreduplication. Our results show that control of cyclin-dependent kinase activity by Wee1 is conserved among eukaryotes, from fungi to animals and plants.

Chromosome-specific molecular organization of maize (Zea mays L.) centromeric regions

A set of oat–maize chromosome addition lines with individual maize (Zea mays L.) chromosomes present in plants with a complete oat (Avena sativa L.) chromosome complement provides a unique opportunity to analyze the organization of centromeric regions of each maize chromosome. A DNA sequence, MCS1a, described previously as a maize centromere-associated sequence, was used as a probe to isolate cosmid clones from a genomic library made of DNA purified from a maize chromosome 9 addition line. Analysis of six cosmid clones containing centromeric DNA segments revealed a complex organization. The MCS1a sequence was found to comprise a portion of the long terminal repeats of a retrotransposon-like repeated element, termed CentA. Two of the six cosmid clones contained regions composed of a newly identified family of tandem repeats, termed CentC. Copies of CentA and tandem arrays of CentC are interspersed with other repetitive elements, including the previously identified maize retroelements Huck and Prem2. Fluorescence in situ hybridization revealed that CentC and CentA elements are limited to the centromeric region of each maize chromosome. The retroelements Huck and Prem2 are dispersed along all maize chromosomes, although Huck elements are present in an increased concentration around centromeric regions. Significant variation in the size of the blocks of CentC and in the copy number of CentA elements, as well as restriction fragment length variations were detected within the centromeric region of each maize chromosome studied. The different proportions and arrangements of these elements and likely others provide each centromeric region with a unique overall structure.