The UNAM-KIAS Catalog of Isolated Galaxies

A new catalog of isolated galaxies from The Sloan Digital Sky Survey (DR5) is presented. 1520 isolated galaxies were found in 1.4 steradians of sky. The selection criteria in this so called UNAM-KIAS catalog was implemented from a variation on the criteria developed by Karachentseva 1973 including full redshift information. Through an image processing pipeline that takes advantage from the high resolution (~ 0.4 ''/pix) and high dynamic range of the SDSS images, a uniform g band morphological classification for all these galaxies is presented. We identify 80% (SaSm) spirals (50% later than Sbc types) on one hand, and a scarce population of early-type E(6.5%) and S0(8%) galaxies amounting to 14.5% on the other hand. This magnitude-limited catalog is ~ 80% complete at 16.5, 15.6, 15.0, 14.6 and 14.4 magnitudes in the ugriz bands respectively. Some representative physical properties including SDSS magnitudes and color distributions, color-color diagrams, absolute magnitude-color, and concentration-color diagrams as a function of morphological type are presented. The UNAM-KIAS Morphological Atlas is also released along with this paper. For each galaxy of type later than Sa, a mosaic is presented that includes: (1) a g-band logarithmic image, (2) a g band filtered-enhanced image where a Gaussian kernel of various sizes was applied and (3) an RGB color image from the SDSS database. For E/S0/Sa galaxies, in addition to the images in (1), (2) and (3), plots of r band surface brightness and geometric profiles (ellipticity, Position Angle PA and A4/B4 coefficients of the Fourier series expansions of deviations of a pure ellipse) are provided...Comment: 40 pages, 17 figures and 3 table

The UNAM-KIAS Catalog of Isolated Galaxies

A new catalog of isolated galaxies from The Sloan Digital Sky Survey (DR5) is presented. 1520 isolated galaxies were found in 1.4 steradians of sky. The selection criteria in this so called UNAM-KIAS catalog was implemented from a variation on the criteria developed by Karachentseva 1973 including full redshift information. Through an image processing pipeline that takes advantage from the high resolution (~ 0.4 ''/pix) and high dynamic range of the SDSS images, a uniform g band morphological classification for all these galaxies is presented. We identify 80% (SaSm) spirals (50% later than Sbc types) on one hand, and a scarce population of early-type E(6.5%) and S0(8%) galaxies amounting to 14.5% on the other hand. This magnitude-limited catalog is ~ 80% complete at 16.5, 15.6, 15.0, 14.6 and 14.4 magnitudes in the ugriz bands respectively. Some representative physical properties including SDSS magnitudes and color distributions, color-color diagrams, absolute magnitude-color, and concentration-color diagrams as a function of morphological type are presented. The UNAM-KIAS Morphological Atlas is also released along with this paper. For each galaxy of type later than Sa, a mosaic is presented that includes: (1) a g-band logarithmic image, (2) a g band filtered-enhanced image where a Gaussian kernel of various sizes was applied and (3) an RGB color image from the SDSS database. For E/S0/Sa galaxies, in addition to the images in (1), (2) and (3), plots of r band surface brightness and geometric profiles (ellipticity, Position Angle PA and A4/B4 coefficients of the Fourier series expansions of deviations of a pure ellipse) are provided...Comment: 40 pages, 17 figures and 3 table

Technological properties of maize tortillas produced by microwave nixtamalization with variable alkalinity

This research was conducted to determine the quality, physicochemical, textural, compositional, nutritional, viscoamylographic and sensory properties of maize tortillas produced with a Modified tortilla-making process (MTMP) of variable alkalinity (0.125, 0.25 and 0.5% Ca(OH)2 w/w) and compared to the commercial brand MASECA ®. In general, tortillas from MTMP showed higher pH, total color difference (ΔE), tensile strength/cutting force, protein, lipids, crude fibre, lysine, tryptophan, in vitro protein digestibility and lower Hunter L value, loss of weight during cooking and moisture content than MASECA® tortillas. No significant differences were found in the sensory analysis of 22 descriptors of tortillas made from MASECA® and MTMP with Ca(OH)2 concentrations of 0.125 and 0.25% (w/w). However, panelist identified principal effects on changes in four attributes (aroma, appearance, flavor, and after taste flavor) and seven descriptors in tortillas from MTMP prepared with the maximum lime concentration (0.5% w/w). Microwave nixtamalization produce tortillas with acceptable physicochemical, textural, quality, compositional/nutritional and pasting properties.Key words: Maize, modified nixtamalization, tortillas, technological properties

Spanish Research Report for 1992

7 páginas, 11 tablasPeer reviewe

Fijación de la no-unión del proceso ancóneo mediante tornillo. Estudio retrospectivo en 13 casos clínicos

En este estudio se hace una evaluación retrospectiva de la técnica de fijación con tornillo del proceso ancóneo no unificado en una serie de 13 casos. Los resultados de la cirugía (con un seguimiento de 2 años de media) fueron considerados "excelentes" o "buenos" en 12 o 13 casos, y todos los animales mejoraron el grado de cojera. En el 92% de los codos se consiguió una unión ósea completa del proceso ancóneo, y en el 70%, un estancamiento de la artrosis. La tasa de complicaciones fue del 15%, todas ellas de carácter muy leve.

Evaluación de mejores prácticas de manejo para reducir las pérdidas de nutrientes contaminantes en escorrentía desde suelos enmendados con carnada de pollos parrilleros. I. Adiciones de alum.

The effect of alum [AI2(S04)3.14H20] on reducing phosphorus (P) concentrations in runoff water from broiler litter-amended soils was evaluated in various simulated rainfall events. Additions of alum at a 20% (w/wO) rate caused a significant reduction in the "soluble" (CaCI2-extractable) P fraction of the broiler litter matrix. As a result, the soluble P fraction added to the soils through litter application was 43% and 75% less for the 6 t/ha and the 20 t/ha litter treatments with alum than for their untreated (0 alum) counterparts. Total phosphorus (TP) concentrations in runoff for the 6 t/ha and 20 t/ha treatments with no alum were highly enriched, averaging 2.59 mg/L and 6.10 mg/L, respectively. At the highest litter rate (i.e., 20 t/ha) the 20% alum treatment achieved a 52% reduction in the concentration of TP in runoff as compared to that of the no-alum treatment. However, the impact of alum was more notable in reducing dissolved P (DP) losses. Average DP concentration losses for the 20 t/ha broiler litter rate (no alum) was 3.55 mg/L, a value significantly higher than the 1.0 mg/L threshold that has been suggested as a potential limit to control runoff P losses from agricultural fields. At said broiler litter application rate the 10% and 20% alum treatments resulted in reductions of 58% and 70% of the DP concentrations in runoff, respectively. The observed DP concentration losses from the litter treatments containing 20% alum met the 1 mg/L threshold value in practically all instances. Total P losses in runoff were positively correlated with both the amount of CaCI2-extractable P applied to the soils and soil P levels (Olsen) during different stages of the simulation events. The nutritional contents (N, P, and K) of the Bermuda grass samples were reflective of the broiler litter rate. Higher nutritional contents were generally observed with the 20 t/ha treatments as compared to those at the 6 t/ha rate with no alum, even though the effects were statistically significant only for nitrogen. Alum did not seem to exert a significant impact on nutritional content of the Bermuda grass, although a slight decrease (non significant) in both N and P was observed at the 20% alum rate for the 20 t/ha broiler litter rate.El efecto de alum [AI2(S04)3-14H20] en la reducción de las concentraciones de fósforo (P) en las aguas de escorrentía desde los suelos enmendados con residuos de carnadas de pollos parrilleros se evaluó en varios eventos de lluvia simulada. Adiciones de alum a razón de 20% (peso/peso) causaron una reducción significativa en la fracción de P "soluble" (CaCI2-extraíble) presente en la matriz de la carnada de pollos parrilleros. Como resultado, el P soluble añadido al suelo se redujo en un 43% y un 75% para los tratamientos de 6 t/ha y 20 t/ha de residuos de carnada de pollos parrilleros con alum en comparación con sus contrapartes sin alum. Las concentraciones de P total en la escorrentía de los tratamientos 6 t/ha y 20 t/ha de residuos de carnada de pollos parrilleros sin alum resultaron altamente enriquecidas, promediando 2.59 y 6.10 mg/L, respectivamente. En la dosis más alta de residuos de carnada de pollos parrilleros (20 t/ha), el tratamiento de 20% de alum logró una reducción de 52% en la concentración de P total en la escorrentía relativo al tratamiento sin alum. Sin embargo, el efecto más notable de alum fue en la reducción de las pérdidas de P disuelto. Las pérdidas en las concentraciones de P disuelto promedio en el tratamiento de 20 t/ha de residuos de carnada de pollos parrilleros (sin alum) fue de 3.55 mg/L, un valor significativamente mayor que el umbral de 1.0 mg/L que ha sido sugerido como el límite potencial para el control de pérdidas de P por escorrentía de predios agrícolas. En dicha dosis de aplicación los tratamientos de 10% y 20% de alum alcanzaron reducciones de 58% y 70% en las concentraciones de P disuelto en la escorrentía, espectivamente. Las pérdidas en las concentraciones de P disuelto observadas para los tratamientos con 20% de alum cumplieron con el valor umbral de 1.0 mg/L en prácticamente todos los casos, irrespectivamente de la dosis de residuos de carnada de pollos parrilleros evaluada. Las pérdidas de P total en la escorrentía fue correlacionada positivamente tanto con la fracción de P soluble (extraíble con CaCI2) aplicado a los suelos, como con los niveles de P (Olsen) en el suelo durante las diferentes etapas de los eventos de simulación de lluvia. El contenido nutricional (N, P, y K) para muestras de hierba Bermuda reflejó el efecto de las diferentes dosis de residuos de carnada de pollos parrilleros. Se observó un mayor contenido nutricional en los tratamientos de 20 t/ha comparado con los de 6 t/ha. No obstante, los efectos solo fueron estadísticamente significativos para nitrógeno. El alum no parece ejercer un impacto significativo en el contenido nutricional de la yerba Bermuda, aunque se observaron disminuciones leves (no significativas) para N y P en el tratamiento de 20 t/ha de carnada de pollos parrilleros con 20% de alum

Housing bubbles and land planning corruption: evidence from Spain’s largest municipalities

Purpose: The purpose of this paper is to quantify to what extent the housing bubble in the early-to-mid 2000s in Spain exacerbated land planning corruption among Spain’s largest municipalities. Design/methodology/approach: The authors exploit plausibly exogenous variation in housing prices induced by changes in local mortgage market conditions; namely, the rapid expansion of savings banks (Cajas de Ahorros). Accounting for electoral competition in the 2003–2007 and 2007–2009 electoral cycles among Spanish municipalities larger than 25, 000 inhabitants, the authors estimate a positive relationship between housing prices and land planning corruption in municipalities with variation in savings bank establishments using instrumental variables techniques. Findings: A 1% increase in housing prices leads to a 3.9% points increase in the probability of land planning corruption. Moreover, absolute majority governments (not needing other parties’ support) are more susceptible to the incidence of corruption than non-majority ones. Two policy implications to address corruption emerge: enhance electoral competition and increase scrutiny over land planning decisions in sparsely populated. Originality/value: First empirical evidence of a formal link between the 2000s housing bubble in Spain and land planning corruption