Mecanismos elementales del relato policiaco en un cuento de María Elena Bermúdez

El relato policiaco clásico obedece a un esquema muy preciso, el método científico decimonónico. Los elementos del texto construyen un combate de ingenios entre autor y lector en la solución de un crimen. Este mecanismo se manifiesta en Un cuarto en Ámsterdam de María Elena Bermúdez, donde las aparentes transgresiones de la historia confirman la eficacia del pensamiento lógico-deductivo

El soneto adaptado a Borges

El soneto fue una de las formas poéticas más recurridas por Jorge Luis Bor - ges en su producción durante la segunda mitad del siglo XX. Pero en la mayoría de estos poemas hay siempre algún tipo de variación que impide la identificación del escritor argentino con otros autores, lo que lleva a concluir que Borges empleó el sone - to de una manera particular para sus propios fines expresivos, sin apegarse al canon

The Guardian USA Baseball Headlines from a Syntactic Perspective

The objective of this paper is to identify the main syntactic characteristics examined in a corpus of 100 baseball headlines from the sports section more specifically the Major League Baseball MLB section of the daily newspaper The Guardian USA in its electronic version Newspaper headlines are distinctive because they are brief texts that summarize the content of the article they precede Baseball headlines in The Guardian USA respect these characteristics Furthermore they display specific syntactic features that are analyzed in this article The main results of the study were firstly that this newspaper favors the use of verbal constructions in its headlines rather than non-verbal constructions On the one hand the present tense third person was the verbal construction most commonly used On the other hand in the non-verbal constructions the most common headline was the one constituted by two noun phrases which were linked by a colo

Tidal Disruption Event Host Galaxies in the Context of the Local Galaxy Population

We study the properties of tidal disruption event (TDE) host galaxies in the context of a catalog of ~500,000 galaxies from the Sloan Digital Sky Survey. We explore whether selection effects can account for the overrepresentation of TDEs in E+A/post-starburst galaxies by creating matched galaxy samples. Accounting for possible selection effects due to black hole (BH) mass, redshift completeness, strong AGN presence, bulge colors, and surface brightness can reduce the apparent overrepresentation of TDEs in E+A host galaxies by a factor of ~4 (from ~$\times$100-190 to ~$\times$25-48), but cannot fully explain the preference. We find that TDE host galaxies have atypical photometric properties compared to similar, "typical" galaxies. In particular, TDE host galaxies tend to live in or near the "green valley" between star-forming and passive galaxies, and have bluer bulge colors ($\Delta (g-r) \approx 0.3$ mag), lower half-light surface brightnesses (by ~1 mag/arcsec$^2$), higher Sersic indices ($\Delta n_{\rm g} \approx 3$), and higher bulge-to-total-light ratios ($\Delta B/T \approx 0.5$) than galaxies with matched BH masses. We find that TDE host galaxies appear more centrally concentrated and that all have high galaxy Sersic indices and $B/T$ fractions---on average in the top 10% of galaxies of the same BH mass---suggesting a higher nuclear stellar density. We identify a region in Sersic index and BH mass parameter space that contains ~2% of our reference catalog galaxies but $\ge\!60\%$ of TDE host galaxies. The unique photometric properties of TDE host galaxies may be useful for selecting candidate TDEs for spectroscopic follow-up observations in large transient surveys.Comment: 26 pages, 11 figures, 5 tables. Published in Ap

A Three-Step Synthesis of Hydrogenated Tamoxifen

Tamoxifen is an active molecule that is used to treat estrogen-receptor-positive breast cancer in both men and women. Estrogen-receptor-positive (ER+) breast cancer is where the cancer cells’ growth is promoted by the presence of estrogen. Tamoxifen is an antagonist of the estrogen receptors in the breast tissue because it blocks the receptors, preventing cancer growth. Three steps were taken to synthesize hydrogenated tamoxifen. First, 1-phenyl-1-(p-hydroxyphenyl)-2-phenylbut-1-ene was synthesized from 4-hydroxybenzophenone and propiophenone, using THF as a solvent. Then, the product was amino alkylated to synthesize E and Z isomers of tamoxifen, to which it was hydrogenated to produce our final product, hydrogenated tamoxifen. In order to make this process more green 2-methyltetrahydrofuran (2-meTHF) was used in place of THF wherever possible

Quantifying radar-rainfall uncertainties in urban drainage flow modelling

AbstractThis work presents the results of the implementation of a probabilistic system to model the uncertainty associated to radar rainfall (RR) estimates and the way this uncertainty propagates through the sewer system of an urban area located in the North of England. The spatial and temporal correlations of the RR errors as well as the error covariance matrix were computed to build a RR error model able to generate RR ensembles that reproduce the uncertainty associated with the measured rainfall. The results showed that the RR ensembles provide important information about the uncertainty in the rainfall measurement that can be propagated in the urban sewer system. The results showed that the measured flow peaks and flow volumes are often bounded within the uncertainty area produced by the RR ensembles. In 55% of the simulated events, the uncertainties in RR measurements can explain the uncertainties observed in the simulated flow volumes. However, there are also some events where the RR uncertainty cannot explain the whole uncertainty observed in the simulated flow volumes indicating that there are additional sources of uncertainty that must be considered such as the uncertainty in the urban drainage model structure, the uncertainty in the urban drainage model calibrated parameters, and the uncertainty in the measured sewer flows

La oposición al franquismo en las sentencias del TOP: Organizaciones políticas y movimientos sociales

This article go into details about the study of the political organizations and the social and ideological movements that were responsible in the opposition to the Franco’s regime and that were considered by the authorities of the regime it sufficiently dangerous as for be chased and accused.Este artículo profundiza en el estudio de las organizaciones políticas y los movimientos sociales e ideológicos que protagonizaron la oposición al franquismo y que fueron considerados por las autoridades del régimen lo suficientemente peligrosos como para ser perseguidos y encausados

The symbolic life of birds in Anglo-Saxon England

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Evaluación de extractos microbianos frente a pudriciones radiculares en agucate generados por Phytophthora cinnamomi

La demanda mundial de aguacate supera su oferta en más de un 50% y existe la necesidad de buscar alternativas que permitan incrementar su producción. Sin embargo, la productividad de este cultivo es seriamente afectada por problemas fitosanitarios como la pudrición radicular causada por Phytophthora cinnamomi Rands. En este trabajo se evaluó la producción y actividad biológica frente a P. cinnamomi, de metabolitos extracelulares obtenidos a partir de aislamientos bacterianos asociados a plantas de aguacate en campo. Inicialmente se demostró la capacidad infectiva de aislamientos de P. cinnamomi. A través de pruebas de antagonismo in vitro se seleccionaron las bacterias AED38 y AED56 con base en su halo de inhibición. Posteriormente, los extractos metabólicos bacterianos fueron evaluados in vitro e in vivo para verificar su capacidad de protección de plantas de aguacate frente a infecciones radiculares causadas por P. cinnamomi. El extracto AED38 demostró ser efectivo a una concentración de 60 mg/L, igualando el efecto de un fungicida sintético comercial a 0,5 mg/L.Abstract: the global avocado demand exceeds its supply by more than 50%. New alternatives to increase avocado fruit production are necessary. However, the productivity of this crop is seriously affected by diseases such as root rot caused by Phytophthora cinnamomi Rands. In this study, the biological activity of extracellular metabolites from antagonistic bacteria against P. cinnamomi was evaluated. The bacterial isolates were obtained from healthy avocado trees in field. In the first place, the infectivity of several P. cinnamomi isolates was demonstrated. AED38 and AED56 were selected through antagonism assays, due to their highest inhibition halo. Metabolic extracts from promising bacteria were evaluated in vitro and in vivo to validate their capacity to protect avocado plantlets against rot root caused by P cinnamomi. The extract showed to be effective at a concentration of 60 mg/L. The effect of the metabolic extract was not different to that of a commercial synthetic product at 0.5 mg/L.Maestrí