Echo-character mapping of the Galician Continental Margin and the adjacent abyssal plains

La cartografía y análisis de las facies acústicas que se determinan a partir de la interpretación y correlación de los perfiles sísmicos de muy alta resolución, es una herramienta muy útil para la caracterización de los procesos sedimentarios recientes y su distribución en ambientes marinos profundos. Este trabajo presenta el primer mapa de ecocarácter del Margen Continental de Galicia y las llanuras abisales adyacentes. El mapa se realizó sobre la base del análisis e interpretación de los datos de batimetría y reflectividad de las ecosondas multihaz SIMRAD EM12, EM120 y EM1002, y los perfiles sísmicos de muy alta resolución de la ecosonda paramétrica SIMRAD TOPAS PS18. Sobre la base de la morfología del fondo marino, la reflectividad y los caracteres del eco acústico, se identificaron 26 tipos de ecos en la secuencia sedimentaria más superficial. Estos tipos de eco se han clasificado en cuatro grupos principales: bien definidos, irregulares, hiperbólicos y ondulados. Esta información ha sido adquirida en el marco del ‘Programa de Investigación Científica de la Zona Económica Exclusiva Española’, coordinado por el Ministerio de Defensa, durante las campañas oceanográficas que se han realizado a bordo del BIO Hespérides del 2001 a 2003 y del 2006 a 2009.The acoustic facies mapping and analyses from the interpretation and correlation of very high resolution seis- mic profiles, is a very useful tool for the characterization of the recent sedimentary processes and their distribution in the deep-sea environments. This work presents the first echo-character map of the Galicia Continental Margin and the adjacent abyssal plains. The map was carried out on the basis of the analysis and interpretation of the bathymetry and reflectivity data from the SIMRAD EM12, EM120 and EM1002 multibeam echosounders, and the high resolution seismic profiles from the SIMRAD TOPAS PS18 parametric echosounder. Based on the seafloor morphology, backscatter and acoustic echo-characters, 26 echo types were identified in the uppermost sedimentary sequence. These echo-types have been classified into four main groups: Distinct, Irregular, Hyperbolic and Undulated echoes. This information has been acquired in the framework of the ‘Scientific Research Program of the Economic Exclusive Zone of Spain’, which is coordinated by the Defense Ministry, during the oceanographic cruises carried out on board of the R/V Hesperides in 2001 to 2003 and 2006 to 2009.Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEMinisterio de Ciencia e Innovación (MICINN)Instituto Geológico y Minero de Españapu

Competition and efficiency in the Spanish banking sector: the importance of specialization

This paper analyses the importance of productive specialization in explaining cost efficiency differences between banking companies. Taking as reference the Spanish banking sector during the period 1985-1996, the study shows that if cost efficiency measurements are corrected for the effect of different specialization by the estimation of separate frontiers for four different groups of competitors, the efficiency of companies improves. The behaviour of costs would thus be compatible with that of other competition indicators, reflecting the effects of a more competitive situation in the Spanish banking sector at present than at the start of the period considered.

Abstracts Book : XXVI - SILAE 2017 Società Italo-Latinoamericana di etnomedicina y IX Congreso colombiano de cromatografía – COCOCRO 2017

El presente documento recoge 2 investigaciones realizadas en modo “Oral communications” y 11 en modo “Poster” presentadas para el congreso XXVI– SILAE 2017 Società Italo-Latinoamericana di etnomedicina y IX Congreso colombiano de cromatografía – COCOCRO 2017; realizado en Cartagena. Estos resúmenes recogen la investigación sobre la leishmaniasis y el desarrollo de fitomedicinas basadas en plantas, que permitan tratar la esta condición y sus manifestaciones como medicinas alternativas, que sean efectivas y a bajo costo. Los trabajos presentados fueron: “Oral communications”: (1) Cytotoxicity and leishmanicidal activity of essential oil from plants present in Colombia and commonly used in traditional medicine; (2) Studies in vitro and in vivo of antileishmanial activity and differential cytotoxicity of Cannabis spp. En modo “Poster” (1) Phytochemistry and ethnopharmacological research on isla grande, Cartagena; (2) Ethnobotanical study of medicinal plants in Isla Grande, Cartagena Colombia; (3) In vitro evaluation of interaction of anti-inflammatory, wound healing and anti-leishmanial activities. An useful strategy to identify hit compounds for drug development to treat cutaneous leishmaniasis; (4) Chemical composition and evaluation of the biological potential of three vegetable species of the caribbean region; (5) Characterization by means of gas chromatography / mass spectrometry (gc / ms) and evaluation of the antibacterial activity of the essential oil of the bark from Astronium graveolens; (6) Synthesis and trypanocide activity of chloro and bromo l-tyrosine derivatives; (7) Leishmanicidal and citotoxic activity of benzothiopyrans. Structure-activity relationship; (8) Chemical composition, antioxidant activity, antimicrobial and antiprotozoal properties of ethanol propolis extracts of Bolivia; (9) Leishmanicidal activity and cytotoxicity in vitro of styrylquinolines; (10) Antileishmanial activity of rich fractions in alkaloid and flavonoid to design and develop a new low cost topical phytomedicine product from medicinal plants in the northern coast of Colombia; (11) Synthesis, leishmanicidal activity and chiral resolution of 4-oxothiochromane-2-carboxylic acid and its esters and amides derivatives.Departamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colciencias1107-569-33684Aislamiento y purificación de compuestos con potencial actividad antileishmanial a partir de Cordia dentada Poir. y Heliotropium indicum L.n

Tetraselmis suecica and Tisochrysis lutea meal as dietary ingredients for gilthead sea bream (Sparus aurata L.) fry.

In the present study, the nutritional value of Tetraselmis suecica and Tisochrysis lutea (previously known as Isochrysis aff galbana T-ISO strain) freeze-dried biomass for feeding Sparus aurata fry was evaluated. A total of 25,500 fry (3.7 mg body weight) were fed for 55 days on diets containing 5 and 10%(w/w) Tetraselmis or Tisochrysis, as well as on a microalgae-free diet. Fish fed 5 % Tetraselmis showed higher growth performance, nutrient utilization, and survival values than fish fed Tisochrysis. The use of microalgae significantly decreased the body lipid content in fry fed the highest microalgae level. Fry fed Tisochrysis-supplemented diets increased the DHA content in muscle, and consequently the EPA/DHA ratio decreased significantly, whatever dietary level considered. In general, digestive protease activities were not adversely affected by dietary microalgae inclusion, although slight variations were observed during fish development. Microalgae utilization causes a positive effect on intestinal mucosa ultrastructure owing to an increase of total enterocyte absorption surface that was observed in fish fed microalgae-supplemented diets. Cluster analysis of data separated clearly fish fed Tisochrysis-supplemented diets from the rest of experimental groups. This study confirms that Tetraselmis freeze-dried biomass can be used as dietary ingredient in started feeds for S. aurata fry, although an inclusion level of 5 % is recommended.Versión del editor2,326