TEXTURE OF EXTRA VIRGIN OLIVE OIL-ENRICHED MASHED POTATOES: SENSORY, INSTRUMENTAL AND STRUCTURAL RELATIONSHIPS

The definitive version is available at www3.interscience.wiley.comThe aim of this work was to study the effect of the addition of extra virgin olive oil (EVOO) on instrumental textural properties, sensory texture profile analysis, and microstructure of fresh and frozen/thawed mashed potatoes formulated without and with added cryoprotectants (kappa-carrageenan [k-C] and xanthan gum [XG]). EVOO behaves as soft filler due to droplet aggregates, whereas addition of cryoprotectants led to more structured mashed potatoes (MP) thanks to the gelling properties of k-C. Both the percentage of added EVOO and processing had a much less significant effect on the texture of the MP containing k-C and XG, evidencing the ability of this biopolymer blend to impart freeze/thaw stability. All samples with added EVOO were perceived as significantly softer and creamier than the samples without EVOO, whereas all MP samples with added cryoprotectants were perceived as significantly thicker and creamier than those without hydrocolloids.Spanish Ministry of Science and Innovation financial support (AGL2007-62851)Peer Reviewe

Optical archival spectra of blazar candidates of uncertain type in the 3rd^{rd} Fermi Large Area Telescope Catalog

Despite the fact that blazars constitute the rarest class among active galactic nuclei (AGNs) they are the largest known population of associated $\gamma$-ray sources. Many of the $\gamma$-ray objects listed in the Fermi-Large Area Telescope Third Source catalog (3FGL) are classified as blazar candidates of uncertain type (BCUs), either because they show multifrequency behaviour similar to blazars but lacking optical spectra in the literature, or because the quality of such spectra is too low to confirm their nature. Here we select, out of 585 BCUs in the 3FGL, 42 BCUs which we identify as probable blazars by their WISE infrared colors and which also have optical spectra that are available in the Sloan Digital Sky Survey (SDSS) and/or Six-Degree Field Galaxy Survey Database (6dFGS). We confirm the blazar nature of all of the sources. We furthermore conclude that 28 of them are BL Lacs, 8 are radio-loud quasars with flat radio spectrum and 6 are BL Lac whose emission is dominated by their host galaxy

Produced water treatment by advanced oxidation processes

Abstract Different Advanced Oxidation Processes (AOPs) such as photocatalysis, Fenton-based processes and ozonation were studied to include one of these technologies within an integrated solution for produced water (PW) polishing. Synthetic PW was prepared adding toluene, xylene, naphthalene, phenol, acetic and malonic acids to a seawater matrix. Despite that in all AOPs studied in this work BTEX and naphthalene were removed, the efficiency (in terms of TOC removal) of each treatment varied largely. Among these techniques, photocatalysis was found to be the less effective for the treatment of PW, as TOC removals lower than 20% were obtained for the best scenario after 4 h treatment. In the contrary, best results were obtained by ozonation combined with H2O2, where all the organic components were removed, including a high percentage of acetic acid, which was not abated by the rest of the AOPs studied. The optimum conditions for ozonation were 4 g h−1 O3 and 1500 mg L−1 H2O2 at pH 10, where after 2 h a 74% of TOC removal was achieved and the acetic acid elimination was 78%. This condition enabled that ozonation process accounted for the lowest electric energy consumption per order of target compound destruction regarding total organic carbon (TOC)

The Gamma-ray Blazar Quest: new optical spectra, state of art and future perspectives

We recently developed a procedure to recognize gamma-ray blazar candidates within the positional uncertainty regions of the unidentified/unassociated gamma-ray sources (UGSs). Such procedure was based on the discovery that Fermi blazars show peculiar infrared colors. However, to confirm the real nature of the selected candidates, optical spectroscopic data are necessary. Thus, we performed an extensive archival search for spectra available in the literature in parallel with an optical spectroscopic campaign aimed to reveal and confirm the nature of the selected gamma-ray blazar candidates. Here, we first search for optical spectra of a selected sample of gamma-ray blazar candidates that can be potential counterparts of UGSs using the Sloan Digital Sky Survey (SDSS DR12). This search enables us to update the archival search carried out to date. We also describe the state-of-art and the future perspectives of our campaign to discover previously unknown gamma-ray blazars.Comment: 11 pages, 2 figures, 5 tables, pre-proof version, accepted for publication of Astrophysics and Space Scienc

Sistema de información geográfica para la generación de mapas temáticos (SIGMAT). Producción de cartografía temática

El Sistema de Información Geográfica para la Generación de Mapas Temáticos (SIGMAT) es una nueva herramienta que incorpora las más avanzadas tecnologías y métodos a la producción de cartografía temática. Mediante la introducción de numerosos asistentes facilita todas las tareas de gestión, elaboración y publicación automatizada de los mapas controlando así el ciclo de vida completo de los mismos. Su diseño permite actualizar automáticamente los mapas cuando cambian los datos vinculados.Geographic Information System for Thematic Map Generation (SIGMAT from spanish) is a new tool that incorporates the most advanced technologies and methods to production in thematic mapping. With the introduction of numerous assistants makes easy all the tasks of management, production and publication of the maps thus controlling the whole life cycle of the same. Its design allows to automatically update the maps when we change the linked data

Studies on age determination and growth pattern of the wedge sole Dicologoglossa cuneata (Moreau, 1881) in the Spanish waters of the Gulf of Cadiz (southwest Iberian Peninsula)

The wedge sole Dicologoglossa cuneata (Moreau, 1881) is a typical coastal soleid which is considered as one of the main target species in the demersal fishery of Spain's southern Atlantic region. This paper presents a study on the growth pattern of wedge sole in the Gulf of Cadiz. Age was determined by observing and analysing whole otoliths (sagittae), thereby obtaining the mean lengths at age for males and females in the year 1993 (from 15-20.9 cm TL and 1-4 years for males; from 15.9-23.6 cm TL and 1-6 years for females). In addition, the growth parameters for both sexes were obtained according to the Von Bertalanffy equation: L∞ = 24 cm, K = 0.343 and t0 = -1.384 for males; L∞ = 27 cm, K = 0.296 and t0 = -1.520 for females (showing growth differences growth between the sexes). These were compared with results reported by other authors for other areas of the species's distribution range. Through the interpretation of the otolith and its edge, a sequence of annual rapid- and slow-growth rings was observed; otoliths with an opaque edge (rapid growth) showed the highest percentages in the period from May to October. Mean otolith diameters for each of the estimated ages were calculated, as well as the body length/otolith diameter relationship: a = -12.631 and b = 61.033 (r² = 0.70).La acedía Dicologoglossa cuneata (Moreau, 1881) es un soleido típicamente costero, considerado como una de las especies objetivo de las pesquerías demersales de la región suratlántica ibérica. En este trabajo se estudia el patrón de crecimiento de la acedía del golfo de Cádiz. La determinación de la edad se realizó mediante la lectura de otolitos enteros (sagitta), obteniéndose las tallas medias por clase de edad para machos y hembras del año 1993 (entre 15 y 20,9 cm de longitud total y de 1 a 4 años para machos; de 15,9 a 23,6 cm de longitud total y de 1 a 6 años para hembras). Por otra parte, se estimaron los parámetros de crecimiento para ambos sexos según la ecuación de Von Bertalanffy: L∞ = 24 cm, K = 0,343 y t0 = -1,384 para machos; L∞ = 27 cm, K = 0,296 y t0 = -1,520 para hembras, presentando ambos sexos un crecimiento diferente. Estos resultados se compararon con los obtenidos por otros autores en otras áreas del rango de distribución de la especie. Mediante la interpretación del otolito y su borde, se observa una sucesión anual de anillos de crecimiento lento, formados durante el periodo invernal, y otros de crecimiento rápido, que muestran los porcentajes más altos en el periodo de mayo a octubre. Se calcularon los diámetros de los anillos para cada una de las edades estimadas, así como la relación longitud total del pez - diámetro del otolito, obteniéndose una ecuación lineal en la que a = -12,631 y b = 61,033 (r² = 0,70).Instituto Español de Oceanografí

Refining the associations of the Fermi Large Area Telescope Source Catalogs

The Fermi-Large Area Telescope (LAT) First Source Catalog (1FGL) was released in February 2010 and the Fermi-LAT 2-Year Source Catalog (2FGL) appeared in April 2012, based on data from 24 months of operation. Since their releases, many follow up observations of unidentified gamma-ray sources (UGSs) were performed and new procedures to associate gamma-ray sources with potential counterparts at other wavelengths were developed. Here we review and characterize all the associations as published in the 1FGL and 2FGL catalog on the basis of multifrequency archival observations. In particular we located 177 spectra for the low-energy counterparts that were not listed in the previous Fermi catalogs, and in addition we present new spectroscopic observations of 8 gamma-ray blazar candidates. Based on our investigations, we introduce a new counterpart category of "candidate associations" and propose a refined classification for the candidate low-energy counterparts of the Fermi sources. We compare the 1FGL-assigned counterparts with those listed in the 2FGL to determine which unassociated sources became associated in later releases of the Fermi catalogs. We also search for potential counterparts to all the remaining unassociated Fermi sources. Finally, we prepare a refined and merged list of all the associations of the 1FGL plus 2FGL catalogs that includes 2219 unique Fermi objects. This is the most comprehensive and systematic study of all the associations collected for the gamma-ray sources available to date. We conclude that 80% of the Fermi sources have at least one known plausible gamma-ray emitter within their positional uncertainty regions.Comment: 26 pages, 24 figures, 7 tables, ApJS accepted for publication (pre-proof version uploaded

A new order on embedded coalitions: Properties and Applications

Given a finite set of agents, an embedded coalition consists of a coalition and a partition of the rest of agents. We study a partial order on the set of embedded coalitions of a finite set of agents. An embedded coalition precedes another one if the first coalition is contained in the second and the second partition equals the first one after removing the agents in the second coalition. This poset is not a lattice. We describe the maximal lower bounds and minimal upper bounds of a finite subset, whenever they exist. It is a graded poset and we are able to count the number of elements at a given level as well as the total number of chains. The study of this structure allows us to derive results for games with externalities. In particular, we introduce a new concept of convexity and show that it is equivalent to having non-decreasing contributions to embedded coalitions of increasing size

Marginality and convexity in partition function form games

In this paper an order on the set of embedded coalitions is studied in detail. This allows us to define new notions of superaddivity and convexity of games in partition function form which are compared to other proposals in the literature. The main results are two characterizations of convexity. The first one uses non-decreasing contributions to coalitions of increasing size and can thus be considered parallel to the classic result for cooperative games without externalities. The second one is based on the standard convexity of associated games without externalities that we define using a partition of the player set. Using the later result, we can conclude that some of the generalizations of the Shapley value to games in partition function form lie within the cores of specific classic games when the original game is convex