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Sample records for gran canaria lpgc

  1. El oficio de los neveros en Gran Canaria en el siglo XVIII

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    Salvador Miranda Calderin

    2013-11-01

    Full Text Available A finales del s. XVII el Cabildo Catedral de Canarias, con sede en la capital de Gran Canaria, construyó en la cumbre de la Isla dos pozos de nieve. Allí la recogían y conservaban hasta que era transportada en verano a la ciudad. Las libras de nieve se vendieron en la «nevería» ubicada en la trasera de la Catedral desde 1694 hasta 1866. En este artículo estudiamos el oficio de nevero en Gran Canaria, que había sido olvidado por completo, sus salarios, alimentación y especialidades en el s. XVIII.At the end of XVIIIth century the Canary Cathedral Chapter, settled in Gran Canaria Island capital, built, up in the mountains, two snow wells. Workers collected the snow and filled the wells until it was transported, in summer time, from the top of the island (1.949 meters to the city. Snow pounds were sold in the back of the Cathedral from 1694 to 1866. In this article we study the «neveros» job (snow workers in Gran Canaria, that it had been completely forgotten nowdays, their salaries, food and specialities in XVIIIth century.

  2. Atmospheric corrosion in Gran Canaria specifically meteorological and pollution conditions

    International Nuclear Information System (INIS)

    Gonzalez, J.E.G.; Valles, M.L.; Mirza R, J.C.

    1998-01-01

    Carbon steel, copper, zinc and aluminium samples were exposed in different sizes with known ambient parameters in Gran Canaria Island and atmospheric corrosion was investigated. Weight-loss measurements used to determine corrosion damage were complemented with metallographic and XP S determination in order to characterize the structure and morphology of surface corrosion products. The ambient aggressiveness could be well evaluated from meteorological and pollution data. All atmospheric corrosion and environmental data were statistically processed for establishing general corrosion damage functions for carbon steel, copper, aluminium and zinc in terms of Gran Canaria extreme meteorological and pollution parameters. (Author)

  3. Seroprevalence of Coxiella burnetii in domestic ruminants in Gran Canaria Island, Spain.

    Science.gov (United States)

    Rodríguez, N F; Carranza, C; Bolaños, M; Pérez-Arellano, J L; Gutierrez, C

    2010-04-01

    Coxiella burnetii is the causative agent of Q fever, a zoonosis with worldwide occurrence. In the Canary Islands, the overall seroprevalence in humans has been estimated to be 21.5%. Gran Canaria island concentrates the highest ruminant population in the archipelago and the prevalence of the human infection is 23.5%. To evaluate the seroprevalence in livestock and the affected areas in Gran Canaria island, a total of 1249 ruminants were randomly selected for this study (733 goats, 369 sheep and 147 cattle). The samples were evaluated using an indirect ELISA Kit. The results showed seroprevalences of 60.4%, 31.7% and 12.2% in goats, sheep and cattle, respectively. Based on these results, Q fever could be considered as endemic in Gran Canaria island. Sanitary measures should be taken at the farm level to minimize the risk of exposure of C. burnetii to humans.

  4. Spatial Tourist and Functional Diversity on the Volcanic Island of Gran Canaria

    Science.gov (United States)

    Gonda-Soroczyńska, Eleonora; Olczyk, Hanna

    2017-10-01

    The conducted research is focused on spatial, functional and landscape diversity, the existing tourist potential and the possibilities for further development of a small, volcanic island of Gran Canaria. The discussed island was compared against other islands of the Canarian archipelago (Lanzarote, Fuerteventura, Tenerife, La Palma, El Hierro). Similarly to the remaining Canary Islands, the economy of Gran Canaria is predominantly based on tourism (approx. 4,5-5,0 million tourists visit the Canary Island annually and approx. 2,8 million come to Gran Canaria). Additionally, Puerto de la Luz transhipment centre in Las Palmas plays a very important role because of the goods imported from overseas. It is one of the largest ports in Spain (it reloads almost 2 million containers per year) also being an important Atlantic refuelling station. Apart from tourism, an important role is played here by agriculture, primarily the cultivation of bananas and tomatoes, which represent the most significant export good of the archipelago. The conducted spatial research showed an extensive diversity. This situation is, to a great extent, influenced by the climate. The northern part is cooler and dominated by agriculture, whereas the southern one is much warmer and characterized by a well-developed tourism infrastructure. Site inspections performed out along the outer contour of the island resembling a circle. Numerous architectural and urban sketches, urban analyses and photographic documentation were made. Community surveys were carried out. For a researcher, it was extremely interesting to answer the questions whether Gran Canaria is different from the other Canary Islands, especially in the functional and landscape context, and if so what exactly these differences consist of. What is Gran Canaria in particular characterized by and what kind of role it plays in the economic sector of Spain?

  5. Consideraciones en torno a los sistemas productivos de las sociedades prehistóricas canarias: los modelos de Tenerife y Gran Canaria

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    Javier Velasco Vázquez

    2013-11-01

    Full Text Available En el presente trabajo se analizan diversos aspectos de los sistemas productivos aborígenes de Tenerife y Gran Canaria y su incidencia en la organización socioeconómica de ambas formaciones.In this paper we aim to analyse some aspects about aborigine productive systems of Tenerife and Gran Canaria and their incidence in the socioeconomic organisation of these communities.

  6. New xenophytes from Gran Canaria (Canary Islands, Spain, with emphasis on naturalized and (potentially invasive species

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    Verloove, F.

    2013-12-01

    Full Text Available Trabajos recientes de campo en Gran Canaria han facilitado el descubrimiento de nuevas localidades para plantas vasculares no nativas. Agave attenuata, Antigonon leptopus, Atriplex nummularia, Cascabela thevetia, Cenchrus echinatus, Cuscuta campestris, Diplachne fusca subsp. uninervia, Diplotaxis tenuifolia, Dysphania anthelmintica (hasta ahora confundida con D. ambrosioides, Eclipta prostrata, Euphorbia pulcherrima, Fagopyrum esculentum, Gossypium barbadense, Lablab purpureus, Lemna minuta, Opuntia leucotricha, Passiflora edulis, Pennisetum glaucum, Phaseolus acutifolius, Pluchea carolinensis, Prosopis juliflora, Salvia microphylla, Schinus terebinthifolius, Senna spectabilis, Solanum chrysotrichum, Tecoma stans, Tipuana tipu, Urochloa mutica, U. plantaginea y Washingtonia se citan por primera vez para las Islas Canarias, mientras que Alopecurus myosuroides, Amaranthus blitoides, Bothriochloa ischaemum var. songarica, Cardamine flexuosa subsp. debilis, Heliotropium curassavicum, Leonotis nepetifolia, Medicago lupulina, Parkinsonia aculeata, Physalis peruviana, Phytolacca americana y Turnera ulmifolia son nuevas para la flora de la isla de Gran Canaria. Finalmente, se confirma la presencia de Paspalum vaginatum, P. distichum y Cortaderia selloana en Gran Canaria.Trabajos recientes de campo en Gran Canaria han facilitado el descubrimiento de nuevas localidades para plantas vasculares no nativas. Agave attenuata, Antigonon leptopus, Atriplex nummularia, Cascabela thevetia, Cenchrus echinatus, Cuscuta campestris, Diplachne fusca subsp. uninervia, Diplotaxis tenuifolia, Dysphania anthelmintica (hasta ahora confundida con D. ambrosioides, Eclipta prostrata, Euphorbia pulcherrima, Fagopyrum esculentum, Gossypium barbadense, Lablab purpureus, Lemna minuta, Opuntia leucotricha, Passiflora edulis, Pennisetum glaucum, Phaseolus acutifolius, Pluchea carolinensis, Prosopis juliflora, Salvia microphylla, Schinus terebinthifolius, Senna spectabilis, Solanum

  7. Las remesas indianas en Gran Canaria en el primer cuarto del siglo XVII

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    Elisa TORRES SANTANA

    2009-12-01

    Full Text Available El estudio de las remesas indianas, del dinero que bien en efectivo o en joyas afluía a la isla de Gran Canaria procedente del continente americano, ha sido un problema que ha preocupado en gran medida a los historiadores canarios. Sin embargo, su análisis siempre ha resultado problemático, por varias razones.

  8. Striking resilience of an island endemic bird to a severe perturbation: the case of the Gran Canaria blue chaffinch

    OpenAIRE

    Moreno, A. C.; Carrascal, L. M.; Delgado, A.; Suárez, V.; Seoane, J.

    2018-01-01

    Marcada resiliencia de una especie de ave insular endémica después de una perturbación intensa: el caso del pinzón azul de Gran Canaria Son pocos los datos disponibles sobre la tendencia demográfica de las especies en peligro de extinción en zonas de protección especial y su capacidad de recuperarse de perturbaciones catastróficas. Se estudia la tendencia demográfica del pinzón azul de Gran Canaria (Fringilla polatzeki), un especialista de hábitat endémico de las Islas Canarias, restrin...

  9. Una mirada retrospectiva desde el museo escuela del CEP Las Palmas de Gran Canaria. // A retrospective look at the school museum of the CEP Las Palmas de Gran Canaria.

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    Antonio S. Almeida Aguiar

    2013-12-01

    Full Text Available (ES El Museo Escuela del Centro de Profesores, se encuentra en las Palmas de Gran Canaria cuyo nombre toma el centro perteneciente a la red de Centros del Profesorado del Gobierno de Canarias. Este espacio recrea tal como era una clase de la época de Franco con materiales, libros y muebles cedidos por diferentes escuelas en su mayoría rurales. También se proyecta un video con imágenes y fotos de escuelas desde 1920 hasta 1970, y costumbre canarias de los CER. Herramienta pedagógica que, en un principio, se puso a disposición del alumnado y profesorado de ámbito no universitario para el estudio e investigación de nuestra Historia de la Educación, mediante la exposición material, documental y testimonial. // (EN The school museum is in the Teacher Training Centre in Las Palmas of Gran Canaria. This institution belongs to the Canary Islands Government’s Teacher Training Centre net. This space shows us how it was a classroom during Franco’s government: with materials, books and furniture that were given up from different schools, most of them rural schools. Also, there is a video projection with pictures in it of schools from 1920 to 1970 and the customs of the CER (Rural Education Centers in the Canary Islands. In the beginning this pedagogical tool was available for students and teachers who did not belong to the university environment. Its objective was the study and research of the history of education by documentary, material and testimonial exhibition.

  10. Fábrica para Frigo-Canarias, S.A. en Jinamar (Teide Gran Canaria – España

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    López Díaz, Luis

    1974-06-01

    Full Text Available This building is situated in Janamar (Telde, Las Palmas in Gran Canaria and to accomplish it the valuable experiences have been utilised that Frigo has collected from its other important factories, foreseeing possible enlargements, rational organization of the operational cycle and easy checking of the whole system of ducts. It has offices, wardrobes and staff diningroom, separate W.C.'s for ladies and gentlemen, fabrication zone, storage, maturation tanks, freezers, cold storage rooms, loading piers, etc. Mention should be made of the hyperbolic paraboloids of reinforced concrete that cover the storage house for cartonnage, for raw material and the big central bay as well as the steam kettle room in the shape of a revolving hyperboloid and glass cover.Este edificio está situado en Jinamar (Telde, Las Palmas de Gran Canaria, y para su organización se han recogido las valiosas experiencias que Frigo ha deducido de sus otras fábricas importantes, previendo posibles ampliaciones, organización racional del ciclo operativo y comodidad de control de todas las canalizaciones. Dispone de oficinas, vestuarios y comedor de empleados, aseos para ambos sexos, zona de fabricación, almacenes, tanques de maduración, congeladores, cámaras frigoríficas, muelles de carga, etc. Son de destacar los paraboloides hiperbólicos de hormigón armado que cubren el almacén de cartonaje, el de materias primas y la gran nave central, así como la cámara de calderas de vapor con forma de hiperboloide de revolución y cubierta de cristal.

  11. Striking resilience of an island endemic bird to a severe perturbation: the case of the Gran Canaria blue chaffinch

    OpenAIRE

    Moreno, Á. C.; Carrascal, Luis M.; Delgado, A.; Suárez, V.; Seoane, J.

    2018-01-01

    [ES] Striking resilience of an island–endemic bird to a severe perturbation: the case of the Gran Canaria blue chaffinch. Evidence regarding population trends of endangered species in special protection areas and their recovery ability from catastrophic disturbances is scarce. We assessed the population trend of the Gran Canaria blue chaffinch (Fringilla polatzeki), a habitat specialist endemic to the pine forest of Inagua in the Canary Islands, following a devastating wildfire in July 2007. ...

  12. The occurrence of mycoplasmas in the lungs of swine in Gran Canaria (Spain)

    DEFF Research Database (Denmark)

    Assuncao, P.; De la Fe, C.; Kokotovic, Branko

    2005-01-01

    The study was conducted to investigate the mycoplasmal flora in the lungs of pigs with enzootic pneumonia at Gran Canaria (Spain). From 54 pneumonic lungs collected at an abattoir, 85 isolates were cultivated. On the basis of cultural and biochemical characteristics, the isolates were preliminarily...

  13. El poblamiento en la comarca suroccidental de Gran Canaria

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    Lozano Mas, María Yazmina

    2006-01-01

    [ES] Este es un resumen representativo de un ambicioso trabajo de investigación que intenta ahondar en los aspectos metodológicos de la demografía histórica y el conocimiento de los aspectos históricos que rodean al poblamiento histórico de un territorio montañoso. El caso de la comarca suroccidental de Gran Canaria reúne una serie de connotaciones sobre las características y comportamientos de la población y sus distintas formas de apropiación del espacio. Ello tiene su traslación a la actua...

  14. Human impacts quantification on the coastal landforms of Gran Canaria Island (Canary Islands)

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    Ferrer-Valero, Nicolás; Hernández-Calvento, Luis; Hernández-Cordero, Antonio I.

    2017-06-01

    The coastal areas of the Canary Islands are particularly sensitive to changes, both from a natural perspective and for their potential socio-economic implications. In this paper, the state of conservation of an insular coast is approached from a geomorphological point of view, considering recent changes induced by urban and tourism development. The analysis is applied to the coast of Gran Canaria, a small Atlantic island of volcanic origin, subject to a high degree of human pressure on its coastal areas, especially in recent decades. Currently, much of the economic activity of Gran Canaria is linked to mass tourism, associated with climatic and geomorphological features of the coast. This work is addressed through detailed mapping of coastal landforms across the island (256 km perimeter), corresponding to the period before the urban and tourism development (late 19th century for the island's capital, mid-20th century for the rest of the island) and today. The comparison between the coastal geomorphology before and after the urban and tourism development was established through four categories of human impacts, related to their conservation state: unaltered, altered, semi-destroyed and extinct. The results indicate that 43% of coastal landforms have been affected by human impacts, while 57% remain unaltered. The most affected are sedimentary landforms, namely coastal dunes, palaeo-dunes, beaches and wetlands. Geodiversity loss was also evaluated by applying two diversity indices. The coastal geodiversity loss by total or partial destruction of landforms is estimated at - 15.2%, according to Shannon index (H‧), while it increases to - 32.1% according to an index proposed in this paper. We conclude that the transformations of the coast of Gran Canaria induced by urban and tourism development have heavily affected the most singular coastal landforms (dunes, palaeo-dunes and wetlands), reducing significantly its geodiversity.

  15. Grupos de poder, familia e Iglesia en Gran Canaria en el Siglo XVII: el clero femenino

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    Alemán Ruiz, Esteban

    1996-01-01

    [ES] Estudio del clero regular femenino en la isla de Gran Canaria en el siglo XVII, desde la perspectiva de las estrategias familiares y de los grupos de poder de la sociedad isleña en aquella centuria.

  16. El Confital (Gran Canaria: una prospección etnográfica

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    Paulo González

    2004-01-01

    Full Text Available Este trabajo forma parte de un proyecto de investigación sobre movimientos sociales en las Islas Canarias aun en realización. Desde una perspectiva política y relacional indaga en el proceso de desalojo que se encuentran viviendo algunos grupos categorizados como poblaciones marginales de la ciudad de Las Palmas de Gran Canaria. El desplazamiento y reubicación de los grupos estigmatizados es derivado de las actividades especulativas relacionadas con elementos macrosociales como es el turismo, factor preponderante en la economía del archipiélago. De esta forma este estudio analiza las relaciones de poder articulando las representaciones sociales de los grupos con los discursos y prácticas de los mismos. Así mismo, el estudio diacrónico permite reconstruir las trayectorias sociales de los individuos y del barrio como miembro social activo, más concretamente en las movilizaciones sociales que éste ha generado. Este es un estudio etnográfico que implementa técnicas combinadas de entrevistas semidirigidas y observación participante.

  17. Epidemiological survey of zoonotic helminths in feral cats in Gran Canaria island (Macaronesian archipelago-Spain).

    Science.gov (United States)

    Rodríguez-Ponce, Eligia; González, Jorge F; Conde de Felipe, Magnolia; Hernández, Julia N; Raduan Jaber, J

    2016-09-01

    The presence of zoonotic parasites in feral cats have been widely considered all over the world. In Gran Canaria (Macaronesian archipelago, Canary Islands, Spain) the number of feral cats has grown out of control in urban and rural areas. 48 of Felis catus captured in different Gran Canaria areas were studied. Animals were necropsied and several organs were systematically examined in order to collect and identify macroscopic parasites. In addition, coprological tests were done in 28 cats. There were no statistically significant differences in the prevalence rate among sex, age or capture area, showing an overall prevalence of helminths of 77.1%. The most common tapeworms were Dipylidium caninum (64.6%) and Taenia taeniaeformis (31.3%), followed by the nematodes Toxocara cati (20.8%), Ancylostoma tubaeforme (18.8%), Aelurostrongylusabstrusus (10.4%) and Trichuris vulpis (2.08%). We also find several eggs of Alaria alata in the small intestine of one cat (2.08%), being the first description of this trematode in cats in the Canary Islands. Aproximatelly, 40% of the studied cats harboured more than one parasite. High rates of zoonotic species found in these animals suggest the need of controling parasitic infections and preventive measures against them.

  18. La utilización diferencial del espacio urbano en el sector de Arenales. Las Palmas de Gran Canaria

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    Silvia Sobral García

    2013-11-01

    Full Text Available En este artículo se aborda el análisis de los usos urbanos registrados en el barrio de Arenales, uno de los sectores más representativos de la ciudad de Las Palmas de Gran Canaria. En este sentido, se ofrece un ejemplo de cómo utilizar de forma más racional el suelo,  de acuerdo a las características morfológicas y urbanas del área y al papel que juega dentro de la ciudad.This article deals with the analysis of the urban uses in the area of Arenales which is one of the most representative districts in the city of Las Palmas de Gran Canaria and it seeks to suggest a more rational land use according to the morphologic and urban features of the area in question and to the role it plays in this town.

  19. The Plio-Quaternary Volcanic Evolution of Gran Canaria Based on new Unspiked K-Ar ages and Magnetostratigraphy

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    Guillou, H.; Carracedo, J.; Perez Torrado, F.

    2003-12-01

    The combined use of radioisotopic dating, magnetostratigraphy and field geology is a powerful tool to provide reliable chronological frameworks of volcanic edifices. This approach has been used to investigate the last two stages of the volcanic evolution of Gran Canaria. Fifty samples were dated using the unspiked K-Ar method and had their magnetic polarity measured both in the field and in laboratory. Ages were compared to their stratigraphic positions and magnetic polarities before accepting their validity. The unspiked K-Ar chronology constrains the timing of lateral collapses, eruption rates and the contemporaneity of different volcano-magmatic stages at Gran Canaria. Our new data set modifies significantly the previous chronological framework of Gran Canaria, especially between 4 and 2.8 Ma. Based on these new ages, we can bracket the age of the multiple lateral collapses of the Roque Nublo stratovolcano flanks between 3.5 and 3.1 Ma .This time interval corresponds to a main period of volcanic quiescence. Calculated eruptive rates during the stratovolcano edification are about 0.1 km3/kyr which is significantly lower than the published estimates. The dating also reveals that the two main last stages are not separated by a major time gap, but that the early stages of the rift forming eruption and the vanishing activity of the Roque Nublo strato-volcano were contemporaneous for at least 600 kyrs. These results support that our combined approach provides a rapid first-pass and reliable geochronology. Nevertheless, this chronology can be amplified and made more precise where necessary through detailed Ar-Ar incremental-heating methods. Samples which should be investigated using this method are the oldest and youngest K-Ar dated flows of each volcanic stage, and samples from stratigraphic sections that hold potential to study the behaviour of the earth's magnetic field during reversals (Gauss-Gilbert transition, Olduvai and Reunion events).

  20. Estudio socioecómico de la reserva de la biosfera de Gran Canaria: propuestas de actuación

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    Silvia Sobral García

    2010-01-01

    Full Text Available En este artículo se aborda el análisis de la Reserva de la Biosfera de la isla de Gran Canaria, espacio de gran valor natural y paisajístico pero afectado de serios problemas económico-demográficos debido al estancamiento poblacional y al proceso de abandono de las actividades tradicionales. Frente a esto se plantean programas centrados en solucionar los principales déficit que afectan a la zona para poder cumplir con los compromisos de desarrollo sostenible que conlleva este reconocimiento internacional.

  1. Isotopic patterns in silicic ignimbrites and lava flows of the Mogan and lower Fataga Formations, Gran Canaria, Canary Islands

    International Nuclear Information System (INIS)

    Cousens, B.L.; Tilton, G.R.; Spera, F.J.

    1990-01-01

    We report the Sr, Pb, and Nd isotopic composition of thirty-six intercalated extracaldera silicic ignimbrites and basaltic lavas of the Miocene Hogarzales, Mogan, and Fataga Formations, Gran Canaria, Canary Islands. The aims are to constrain petrogenetic models for the silicic volcanics, and determine mantle source characteristics and temporal variations between 14.2 and ≅ 12.1 Ma. Feldspars from the extracaldera silicic ignimbrites are identical in isotopic composition to coeval extracaldera basaltic lavas, supporting a fractional crystallization model for the evolved lavas from parental Hogarzales basalts. 87 Sr/ 86 Sr ratios range from 0.70306 to 0.70341, 206 Pb/ 204 Pb from 19.32 to 19.90, 207 Pb/ 204 Pb from 15.56 to 15.65, and 208 Pb/ 204 Pb from 38.82 to 39.65. 143 Nd/ 144 Nd ratios are nearly constant at 0.512913±15. The source of Gran Canaria magmas is heterogeneous on small scales of both time and distance. Isotope-isotope and isotope-incompatible element plots suggest mixing between well-mixed, slightly enriched mantle (similar to PREMA as defined by Zindler and Hart) and the HIMU mantle component. The proportion of HIMU component (low 87 Sr/ 86 Sr, high 206 Pb/ 204 Pb) increases upsection. Stratigraphic patterns in major, trace element, and isotopic compositions may be explained by the influx of a geochemically distinct ''Fataga'' magma into the Tejeda magma chamber, which mixed with and/or finally completely displaced existing ''Lower Mogan'' magmas. Alternatively, mixing of these two end members could occur in the mantle, prior to injection into the chamber. There is no evidence of lithospheric/asthenospheric contamination in the late-stage shield magmas on Gran Canaria. (orig.)

  2. The origin of high silicon content in potentially medicinal groundwater of Gran Canaria (Canary Islands, Spain. Modelling of chemical water-rock interactions

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    Dobrzyński, Dariusz

    2012-11-01

    Full Text Available Groundwater of Gran Canaria (Canary Island, Spain have been appreciated and used as an element of health tourism since the 19th Century. This activity was abandoned in the second half of 20th Century when springs disappeared due to groundwater drawdown. The chemistry of groundwater from 19 intakes in volcanic rocks of the north part of Gran Canaria was studied by applying geochemical modelling for quantifying processes responsible for high Si concentrations.Studied groundwater has temperature of 16.3°C–25.5°C, pH of 4.40–7.40, and usually HCO3-(Cl-Mg-Ca-Na hydrochemical types. At near-neutral pH, fresh groundwater usually has 0.1-0.3 mM of Si. In studied groundwater Si concentrations are 0.42 to 1.82 mM, and show positive correlation with ionic strength and temperature. Volcanic bedrocks consist of, generally, easily reactive silicate minerals. Weathering is not supported by low rainfall; however, it shall be intensified by high influx of salts from marine aerosols and lithogenic carbon dioxide into groundwater. Geochemical modelling has found water-mineral reactions which reflect properly diversity of bedrock mineralogy. Based on those chemical reactions, contributions of particular silicate minerals to the pool of silicon dissolved in groundwater were calculated. Understanding the processes responsible for water chemistry might help in proper management and protection of groundwater.The Si-rich waters might be found in numerous places of Gran Canaria in all volcanic rocks. Silicic acid is the only form of silicon which is biologically available, and is regarded as a component which provides balneotherapeutic benefits. Many studies have showed beneficial and essential aspects of silicon in humans. Studied groundwater from Gran Canaria has an unexploited balneotherapeutic potential, and due to very high Si contents they seem to be ideal for testing the health benefits of such waters to humans. Hydrogeochemical methods, including

  3. Un acontecimiento social: deporte y educación física en Las Palmas de Gran Canaria (1844-1914)

    OpenAIRE

    Almeida Aguiar, Antonio S.

    2011-01-01

    Programa de Doctorado: Evaluación y asesoramiento en el desarrollo de la calidad educativa En este trabajo trataremos de acercarnos a las condiciones sociales que hicieron posible la incorporación de la educación física y el deporte a la ciudad de Las Palmas de Gran Canaria.

  4. The helminth community of the skink Chalcides sexlineatus from Gran Canaria (Canary Islands).

    Science.gov (United States)

    Roca, V; Carretero, M A; Jorge, F; Perera, A; Ferrero, A; Rodríguez-Reina, S

    2012-06-01

    A survey of the gastrointestinal helminth communities of a population of Chalcides sexlineatus Steindachner, a small skink endemic to Gran Canaria island (Canary Archipelago, Spain), was conducted to determine the prevalence, abundance and species diversity of intestinal parasites in these reptiles. Only three parasite species were found, one cestode, Oochoristica agamae Baylis, 1919 and two nematodes, Parapharyngodon micipsae (Seurat, 1917) and Pharyngodonidae gen. sp. Helminth infracommunities of C. sexlineatus showed low values of abundance and species richness and diversity, being more similar to the helminth community of Tarentola boettgeri boettgeri (Steindachner) rather than those of Gallotia stehlini (Schenkel), both syntopic with the sampled host.

  5. J0815+4729: A Chemically Primitive Dwarf Star in the Galactic Halo Observed with Gran Telescopio Canarias

    Science.gov (United States)

    Aguado, David S.; González Hernández, Jonay I.; Allende Prieto, Carlos; Rebolo, Rafael

    2018-01-01

    We report the discovery of the carbon-rich hyper metal-poor unevolved star J0815+4729. This dwarf star was selected from SDSS/BOSS as a metal-poor candidate and follow-up spectroscopic observations at medium resolution were obtained with the Intermediate dispersion Spectrograph and Imaging System (ISIS) at William Herschel Telescope and the Optical System for Imaging and low-intermediate-Resolution Integrated Spectroscopy (OSIRIS) at Gran Telescopio de Canarias. We use the FERRE code to derive the main stellar parameters, {T}{eff}=6215+/- 82 K, and {log}g=4.7+/- 0.5, an upper limit to the metallicity of [Fe/H] ≤ ‑5.8, and a carbon abundance of [C/Fe] ≥ +5.0, while [α /{Fe}]=0.4 is assumed. The metallicity upper limit is based on the Ca II K line, which at the resolving power of the OSIRIS spectrograph cannot be resolved from possible interstellar calcium. The star could be the most iron-poor unevolved star known and also be among the ones with the largest overabundances of carbon. High-resolution spectroscopy of J0815+4729 will certainly help to derive other important elemental abundances, possibly providing new fundamental constraints on the early stages of the universe, the formation of the first stars, and the properties of the first supernovae. Based on observations made with the Gran Telescopio Canarias (GTC), installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, on the island of La Palma. Program ID GTC90-15B and the Discretionary Director Time GTC03-16ADDT and also based on observations made with the William Herschel Telescope (WHT).

  6. Violence in paradise: Cranial trauma in the prehispanic population of Gran Canaria (Canary Islands).

    Science.gov (United States)

    Delgado-Darias, Teresa; Alberto-Barroso, Verónica; Velasco-Vázquez, Javier

    2018-05-01

    This paper addresses the prevalence and pattern of physical violence in the prehispanic society of Gran Canaria and discusses its link with the social structure and insular context in which that people lived. 347 prehispanic crania from Guayadeque Ravine (575-1415 AD) have been examined in order to determine the frequency, types, location, and timing of trauma. Craniofacial injuries are present in 27.4% of the crania examined. Only 2% display perimortem trauma. Most of the injuries (84.3%) correspond to depressed blunt force trauma, with an ellipsoidal or circular shape. Most of these are in the anterior aspect of the cranium. Males are significantly more affected than females. The aboriginal population of Gran Canaria show a high frequency of traumatic injuries to the skull compared to other archaeological groups. Their frequent location in the anterior aspect suggests regular face-to-face confrontations. However, the lethal injuries typically occurring in large-scale combat are scarce. Practices such as ritualized combat, mentioned in ethnohistorical sources, would help to channel and mitigate inter-group conflict. The predominance of depressed blunt force trauma is in accordance with the weapons used by those populations: hand-thrown stones, clubs and sticks. The higher frequency in males indicates that they took part in direct violence more than females did. The hierarchical organization of their society may have led to frequent situations of conflict. The insular nature of a territory barely 1,500 m 2 in size was a determining factor in competition for access to food resources, especially at times of climate crises or population growth. © 2018 Wiley Periodicals, Inc.

  7. The commissioning instrument for the Gran Telescopio Canarias: made in Mexico

    Science.gov (United States)

    Cuevas, Salvador; Sánchez, Beatriz; Bringas, Vicente; Espejo, Carlos; Flores, Rubén; Chapa, Oscar; Lara, Gerardo; Chavoya, Armando; Anguiano, Gustavo; Arciniega, Sadot; Dorantes, Ariel; Gonzalez, José L.; Montoya, Juan M.; Toral, Rafael; Hernández, Hugo; Nava, Roberto; Devaney, Nicolas; Castro, Javier; Cavaller, Luis; Farah, Alejandro; Godoy, Javier; Cobos, Francisco; Tejada, Carlos; Garfias, Fernando

    2006-02-01

    In March 2004 was accepted in the site of Gran Telescopio Canarias (GTC) in La Palma Island, Spain, the Commissioning Instrument (CI) for the GTC. During the GTC integration phase, the CI will be a diagnostic tool for performance verification. The CI features four operation modes-imaging, pupil imaging, Curvature Wave-front sensing (WFS), and high resolution Shack-Hartmann WFS. This instrument was built by the Instituto de Astronomia UNAM in Mexico City and the Centro de Ingenieria y Desarrollo Industrial (CIDESI) in Queretaro, Qro under a GRANTECAN contract after an international public bid. Some optical components were built by Centro de Investigaciones en Optica (CIO) in Leon Gto and the biggest mechanical parts were manufactured by Vatech in Morelia Mich. In this paper we made a general description of the CI and we relate how this instrument, build under international standards, was entirely made in Mexico.

  8. Rasgos sedimentológicos de los fondos marinos de Maspalomas (Gran Canaria

    Directory of Open Access Journals (Sweden)

    Constatino Criado Hernández

    2013-11-01

    Full Text Available En el transcurso de Ia expedición oceanográfica 132/2 del ES Poseidón dirigida por el profesor Dr. H. Klug (Grographisches Institut der Universitat Kiel, Alemania, se realizo un muestreo de los sedimentos superficiales en la plataforma continental comprendida entre la Playa de San Agustin y la Playa la Mujer. Se presentan aquí los resultados de los análisis granulométricos y carbométricos obtenidos sobre las muestras recogidas.During the oceanographical survey 132/2 (ES Poseidón leadered by the Dr. H. Klug (Grographisches Institut der Universitat Kiel, Germany were sampled surficial sediments from the continental shelf of Gran Canaria, between Playa San Agustín and Playa de la Mujer. We present the results of grain size and carbonate analysis got from the samples.

  9. Análisis del comportamiento de los viajeros del transporte interurbano en la isla de Gran Canaria

    OpenAIRE

    Cristóbal Betancor, Teresa

    2014-01-01

    Máster Universitario en Sistemas Inteligentes y Aplicaciones Numéricas en Ingeniería (SIANI) [ES] En este trabajo se hace uso de técnicas de Inteligencia de Negocio y Minería de Datos para la extracción de conocimiento útil para la empresa concesionaria del servicio de transporte interurbano de la isla de Gran Canaria. El objetivo ha sido encontrar un patrón que permita predecir la cantidad de viajeros que querrán ir de un punto a otro de red de transporte en un momento dado. Para ello se ...

  10. Desarrollo urbano e inundaciones en la ciudad de las Palmas de Gran Canaria(1869-2000

    Directory of Open Access Journals (Sweden)

    Pablo Máyer Suárez

    2002-01-01

    Full Text Available En la ciudad de Las Palmas de Gran Canaria los episodios de lluvia facilitan la manifes-tación de riesgos geomorfológicos. El de las inundaciones constituye uno de los más impor-tantes y ha estado presente desde los orígenes de esta ciudad. Las peculiares característicasdel medio físico, tanto desde el punto de vista topográfico como desde el geológico-geomor-fológico; las distintas formas de ocupación del espacio, con áreas de crecimiento planificadasy otras de crecimiento espontáneo, y las diversas intervenciones en áreas consolidadas, quepotencian o agravan estas inundaciones, hacen de esta ciudad una amalgama en la que el aná-lisis de las causas de las inundaciones resulta un proceso complejo

  11. Saharan dust and the impact on adult and elderly allergic patients: the effect of threshold values in the northern sector of Gran Canaria, Spain.

    Science.gov (United States)

    Menéndez, Inmaculada; Derbyshire, Edward; Carrillo, Teresa; Caballero, Elena; Engelbrecht, Johann P; Romero, Lidia E; Mayer, Pablo L; Rodríguez de Castro, Felipe; Mangas, José

    2017-04-01

    Gran Canaria Island is frequently impacted by Saharan dust, a health hazard of particular concern to the island population and health agencies. Airborne mineral dust has the severest impact on the higher age groups of the population, and those with respiratory conditions; despite that, on average, the ambient particulate matter (PM) concentrations fall within international PM guidelines. During 2010 and 2011, an epidemiological survey, in parallel with an air quality study, was conducted at the Dr Negrín hospital in Gran Canaria. This included the quarterly monitoring of outpatients and recording of emergency patients with respiratory diseases, together with the measurement of aerosol, meteorological, and PM-related air quality levels. The finer more toxic particles were collected with PM 2.5 (particulate matter with aerodynamic diameter less than 2.5 μm) aerosol samplers. The filter samples were gravimetrically and chemically analyzed for their elemental, water-soluble ions, carbon, and mineralogical contents. Individual particle morphology was measured by Scanning Electron Microscopy. Statistical analysis of the chemical and clinical data included the analysis of variance and calculation of Spearman correlation coefficients. No statistically significant relations were found between the allergic control group, the emergency room admissions, pulmonary conditions, medication, and elevated Saharan dust levels. However, changing environmental conditions, such as an increase in humidity or a reduction in ambient air temperature made a significant difference to the outcomes recorded on the health statements of the allergic and respiratory illness groups of the Gran Canary population.

  12. Contrasting recruitment seasonality of sea urchin species in Gran Canaria, Canary Islands (eastern Atlantic

    Directory of Open Access Journals (Sweden)

    S. GARCIA-SANZ

    2014-03-01

    Full Text Available Despite sea-urchins can play an important role affecting the community structure of subtidal bottoms, factors controlling the dynamics of sea-urchin populations are still poorly understood. We assessed the seasonal variation in recruitment of three sea-urchin species (Diadema africanum, Paracentrotus lividus and Arbacia lixula at Gran Canaria Island (eastern Atlantic via monthly deployment of artificial collectors throughout an entire annual cycle on each of four adjacent habitat patches (seagrasses, sandy patches, ‘urchin-grazed’ barrens and macroalgal-dominated beds within a shallow coastal landscape. Paracentrotus lividus and A. lixula had exclusively one main recruitment peak in late winter-spring. Diadema africanum recruitment was also seasonal, but recruits appeared in late summer-autumn, particularly on ‘urchin-grazed’ barrens with large abundances of adult conspecifics. In conclusion, this study has demonstrated non-overlapping seasonal recruitment patterns of the less abundant species (P. lividus and A. lixula with the most conspicuous species (D. africanum in the study area.

  13. Early Pliocene fishes (Chondrichthyes, Osteichthyes) from Gran Canaria and Fuerteventura (Canary Islands, Spain)

    Energy Technology Data Exchange (ETDEWEB)

    Betancort, J.F.; Lomoschitz, A.; Meco, J.

    2016-07-01

    Fossil fish teeth are contained in marine deposits dated at ca 4.8 Ma found on the islands of Gran Canaria and Fuerteventura (Canary Islands, Spain). These islands, situated in the North Atlantic Subtropical Gyre, can be considered a mid-way stopover point between the Caribbean Sea, with the Central American Seaway about to close in this epoch, and the Mediterranean, in the first stage of its post-Messinian Gibraltar Seaway period. Accordingly, there existed extensive pantropical communication, particularly for nektonic animals capable of travelling large distances. In this paper, we present a number of fossil fishes, most of which are identified for the first time on the basis of their teeth: the Chondrichthyes species Carcharocles megalodon, Parotodus benedeni, Cosmopolitodus hastalis, Isurus oxyrinchus, Carcharias cf. acutissima, Carcharhinus cf. leucas, Carcharhinus cf. priscus, Galeocerdo cf. aduncus, and the Osteichthyes species Archosargus cinctus, Labrodon pavimentatum, and Diodon scillae. Coincidences are observed between these ichthyofauna and specimens found in the Azores Islands, the Pacific coast of America and the Mediterranean Sea. (Author)

  14. Early Pliocene fishes (Chondrichthyes, Osteichthyes from Gran Canaria and Fuerteventura (Canary Islands, Spain

    Directory of Open Access Journals (Sweden)

    J. F. Betancort

    2016-11-01

    Full Text Available Fossil fish teeth are contained in marine deposits dated at ca 4.8 Ma found on the islands of Gran Canaria and Fuerteventura (Canary Islands, Spain. These islands, situated in the North Atlantic Subtropical Gyre, can be considered a mid-way stopover point between the Caribbean Sea, with the Central American Seaway about to close in this epoch, and the Mediterranean, in the first stage of its post-Messinian Gibraltar Seaway period. Accordingly, there existed extensive pantropical communication, particularly for nektonic animals capable of travelling large distances. In this paper, we present a number of fossil fishes, most of which are identified for the first time on the basis of their teeth: the Chondrichthyes species Carcharocles megalodon, Parotodus benedeni, Cosmopolitodus hastalis, Isurus oxyrinchus, Carcharias cf. acutissima, Carcharhinus cf. leucas, Carcharhinus cf. priscus, Galeocerdo cf. aduncus, and the Osteichthyes species Archosargus cinctus, Labrodon pavimentatum, and Diodon scillae. Coincidences are observed between these ichthyofauna and specimens found in the Azores Islands, the Pacific coast of America and the Mediterranean Sea.

  15. Contribution of bioanthropology to the reconstruction of prehistoric productive processes. The external auditory exostoses in the prehispanic population of Gran Canaria

    Directory of Open Access Journals (Sweden)

    Velasco Vázquez, Javier

    2001-06-01

    Full Text Available The aim of this paper is an approach to the role of bioanthropological studies in the reconstruction of the productive processes of past societies. This objective is obtained starting from the survey and valuation of the prevalence of bone exostoses in the auditory canal among the prehistoric inhabitants of Gran Canaria. The auditory exostose is a bone wound well documented through clinical and experimental studies, closely related to the exposure of the auditory canal to cold water. The estimation of this bone anomaly among the analysed population, leads to the definition of outstanding territorial variations in the economic strategies of these human groups.

    En el presente trabajo se pretende abordar el papel de los estudios bioantropológicos en la reconstrucción de los procesos productivos de las sociedades del pasado. Esta finalidad es perseguida a partir del examen y valoración de la prevalencia de exostosis óseas en el canal auditivo en la población prehistórica de Gran Canaria. Las exostosis auditivas constituyen una lesión ósea, bien documentada en trabajos experimentales y clínicos, estrechamente relacionada con la exposición del canal auditivo al agua fría. La estimación de esta anormalidad ósea en el conjunto poblacional analizado permite la definición de importantes variaciones territoriales en las estrategias económicas emprendidas por estos grupos humanos.

  16. Proceedings of the International Association for Development of the Information Society (IADIS) International Conference on e-Learning (Las Palmas de Gran Canaria, Spain, July 21-24, 2015)

    Science.gov (United States)

    Nunes, Miguel Baptista, Ed.; McPherson, Maggie, Ed.

    2015-01-01

    These proceedings contain the papers of the International Conference e-Learning 2015, which was organised by the International Association for Development of the Information and Society and is part of the Multi Conference on Computer Science and Information Systems (Las Palmas de Gran Canaria, Spain, July 21-24, 2015). The e-Learning 2015…

  17. Photoinhibition in common atlantic macroalgae measured on site in Gran Canaria

    Science.gov (United States)

    Häder, D.-P.; Porst, M.; Lebert, M.

    2001-03-01

    The photosynthetic quantum yield was analysed in four common atlantic macroalgae, the Rhodophytes Gelidium arbuscula and Halopithys incurvus and the Phaeophytes Halopteris scoparia and Lobophora variegata in Gran Canaria, Canary Islands at their growth site. The fluorescence parameters were measured using a portable pulse amplitude modulated (PAM) fluorometer (PAM 2000) instrument and a diving PAM under water without removing the thalli from their growth sites. Solar radiation was monitored continuously above and under water during the whole experimental period using two three-channel dosimeters (European light dosimeter network; ELDONET) (Real Time Computer, Möhrendorf, Germany). These instruments measure solar radiation in three wavelength ranges, ultraviolet (UV)-A, UV-B and photosynthetic active radiation (PAR). In all four algae the effective photosynthetic quantum yield decreased significantly from the optimal values measured after dark adaptation due to exposure to 15 min solar radiation, but at least partially recovered subsequently in the shade within several hours. Increasing the exposure period to 30 min intensified the photoinhibition. In some algae no recovery was observed after this treatment and in others no significant recovery could be detected. Exposure to unfiltered solar radiation caused a significantly higher photoinhibition than PAR-only radiation or PAR plus UV-A. A substantial inhibition was found in all algae at their growth sites in the water column when the sun was at high angles, as measured with the diving PAM.

  18. The quarry and workshop of Barranco Cardones (Gran Canaria, Canary Islands: Basalt quern production using stone tools

    Directory of Open Access Journals (Sweden)

    Yurena Naranjo-Mayor

    2016-09-01

    This paper analyses the operational sequence, that is, the different phases of the extraction and fashioning techniques of basalt rotary querns based on the recent finds of two quarries located near the coast (Cardones and Cebolla and a quern manufacturing workshop (Cave 36, Arucas Municipality in a ravine about 600 m inland. Traditionally it was thought that the Pre-European population of Gran Canaria fashioned their querns from naturally detached volcanic surface blocks collected in ravines or along the coast. This supposition was based on the idea that the early Canarians were not capable of extracting blocks from bedrock with stone tools. This notion, however, has been proven wrong by the circular extraction negatives on the quarry faces and by finds of stone fashioning tools in the workshop.

  19. Las cerámicas aborígenes de Gran Canaria (Islas Canarias a través del yacimiento de La Cerera: materias primas, tecnología y función

    Directory of Open Access Journals (Sweden)

    del Pino Curbelo, Miguel

    2016-06-01

    Full Text Available This paper focuses on the study of the pre-Hispanic ceramics from the site of La Cerera (Gran Canaria (7th century AD – 13th century AD. An integrated approach combining various levels of analysis has been carried out, employing morphological, technical and functional analysis of the pots, as well as their instrumental characterization: X-ray fluorescence (XRF, X-ray diffraction (XRD, optical petrography and scanning electron microscopy (SEM. As result, different operative chains have been detected, linked to function and chronology. Other differences with respect to the characteristics of the archaeological materials through time were also identified. Those transformations seem to coincide with others already observed for various elements of the aboriginal material culture at the site, as well as at other parts of the island. The effects of the intensification of pottery production on the homogeneity of the fabrics are also discussed.Se analizan los materiales cerámicos prehispánicos del yacimiento de La Cerera en Gran Canaria (siglos VII-XIII D.C.. Se integra la clasificación morfotécnica y funcional, y la caracterización instrumental mediante fluorescencia de rayos X (FRX, difracción de rayos X (DRX, petrografía óptica (PO y microscopía electrónica de barrido (MEB relacionando cada nivel de estudio aplicado. Como resultado se detectaron diferentes cadenas operativas, conectadas con la función de los vasos y su cronología. Además se observaron importantes cambios diacrónicos en las características del material. Estos parecen coincidir con otros identificados en el registro del propio yacimiento y en otros sitios de la isla. También se discuten los posibles efectos de la intensificación de la producción sobre la homogeneidad de las fábricas cerámicas.

  20. LPGC, Levelized Steam Electric Power Generator Cost

    International Nuclear Information System (INIS)

    Coen, J.J.; Delene, J.G.

    1994-01-01

    1 - Description of program or function: LPGC is a set of nine microcomputer programs for estimating power generation costs for large steam-electric power plants. These programs permit rapid evaluation using various sets of economic and technical ground rules. The levelized power generation costs calculated may be used to compare the relative economics of nuclear and coal-fired plants based on life-cycle costs. Cost calculations include capital investment cost, operation and maintenance cost, fuel cycle cost, decommissioning cost, and total levelized power generation cost. These programs can be used for quick analyses of power generation costs using alternative economic parameters, such as interest rate, escalation rate, inflation rate, plant lead times, capacity factor, fuel prices, etc. The two major types of electric generating plants considered are pressurized-water reactor (PWR) and pulverized coal-fired plants. Data are also provided for the Large Scale Prototype Breeder (LSPB) type liquid metal reactor. Costs for plant having either one or two units may be obtained. 2 - Method of solution: LPGC consists of nine individual menu-driven programs controlled by a driver program, MAINPWR. The individual programs are PLANTCAP, for calculating capital investment costs; NUCLOM, for determining operation and maintenance (O and M) costs for nuclear plants; COALOM, for computing O and M costs for coal-fired plants; NFUEL, for calculating levelized fuel costs for nuclear plants; COALCOST, for determining levelized fuel costs for coal-fired plants; FCRATE, for computing the fixed charge rate on the capital investment; LEVEL, for calculating levelized power generation costs; CAPITAL, for determining capitalized cost from overnight cost; and MASSGEN, for generating, deleting, or changing fuel cycle mass balance data for use with NFUEL. LPGC has three modes of operation. In the first, each individual code can be executed independently to determine one aspect of the total

  1. Estudio de la presencia de peligros (aflatoxinas) y fraudes (uso no declarado de cereal transgénico) en el gofio producido en Gran Canaria

    OpenAIRE

    Collado Perera, Miguel Ángel; Millán de Larriva, Rafael; Sanjuán Velázquez, Esther

    2006-01-01

    [ES] Todavía hoy, los cereales son en gran medida el alimento más importante de la humanidad. En las Islas Canarias existe un alimento muy típico elaborado a base de cereales tostados y molidos conocido como gofio, que ya era consumido por los primeros habitantes de las islas. Se considera como un alimento seguro por su baja humedad y por alcanzar temperaturas de 130ºC durante su elaboración. Sin embargo, puede contener sustancias tóxicas conocidas como micotoxinas y, por otro lado, es posibl...

  2. LLUVIAS E INUNDACIONES EN LOS CENTROS TURÍSTICOS DE GRAN CANARIA: EL CASO DE SAN BARTOLOMÉ DE TIRAJANA

    Directory of Open Access Journals (Sweden)

    Pablo Máyer Suárez

    2006-01-01

    Full Text Available El sur de Gran Canaria ha sido intensamente transformado por las instalaciones turísticas que, desde 1962, se han realizado. Entre las consecuencias ambientales de este proceso destacan las inundaciones. El objetivo de este trabajo es determinar si existe relación entre las implantaciones turísticas y el incremento, en las últimas décadas, de los daños producidos por las inundaciones. Para ello se ha realizado un análisis diacrónico entre 1962 y la actualidad, comparando la evolución entre los episodios de lluvia intensa y los problemas generados. Los resultados señalan que el reciente incremento de los perjuicios, derivados de las inundaciones, se explica por la forma en que se han realizado los crecimientos urbanos y las infraestructuras turísticas a ellos asociados.

  3. El patrimonio rupestre de Gran Canaria. Los grabados de la Montaña de Las Vacas (Aldea de San Nicolás

    Directory of Open Access Journals (Sweden)

    Ernesto Martín Rodríguez

    2013-11-01

    Full Text Available Se presentan varias estaciones rupestres inéditas para la investigación, localizadas en el curso de los trabajos arqueológicos llevados a cabo en la Montaña de Hogarzales (Aldea de San Nicolás, Gran Canaria en torno a la explotación de la obsidiana por las comunidades prehistóricas de la isla.One presents rock art unpublished stations for the investigation, located in the course of the archaeological works led to end in Hogarzales's mountain (Village of San Nicolas, Great Canary concerning the exploitation of the obsidian for the prehistoric communities of the island.

  4. Encuesta de portadores de Neisseria meningitidis en el Área de Salud de Gran Canaria

    Directory of Open Access Journals (Sweden)

    García Rojas Amós

    2000-01-01

    Full Text Available FUNDAMENTOS: Se plantea A Conocer la tasa de portadores y los tipos circulantes de Neisseria Meningitidis en la población residente en el área de salud de Gran Canaria. B Conocer el patrón de distribución de estos portadores. MÉTODOS: Se realizó un diseño descriptivo transversal, con un muestreo aleatorio en etapas múltiples y por conglomerados. Se determinó un tamaño muestral mínimo de 707 personas para una prevalencia esperada del 8,6 %, con una confianza del 95,6 % y precisión de 0,02. Asumiendo que un 15 % de las personas no quisieran colaborar, se incrementó el tamaño muestral a 831 personas, distribuidas en cada conglomerado de manera proporcional a la población existente. Este tamaño se distribuyó a su vez, en cuatro grandes grupos de edad y sexo, proporcionalmente a su importancia en cada zona básica de salud seleccionada aleatoriamente. Los individuos de la muestra se identificaban entre los que acudían a las unidades de extracción, y una vez superados los criterios de exclusión se les solicitaba su colaboración voluntaria en el estudio. Si aceptaban, se les cumplimentaba un cuestionario que englobaba diferentes variables de interés epidemiológico y se les realizaba un frotis faríngeo. Al haber seleccionado los equipos de Atención Primaria con muestreo aleatorio simple y seguir el mismo método para elegir los individuos dentro de ellos, la estimación de la prevalencia se realizó mediante estimador no sesgado. RESULTADOS: Se obtuvieron un total de 828 muestras, lo que supuso un 99,6% de las previstas. Salvo tres, todos los individuos seleccionados participaron voluntariamente en el estudio, lo que le confiere una alta representatividad. Todas las cepas obtenidas correspondían a N. Meningitidis Serogrupo B, salvo una identificada como N. Meningitidis Serogrupo C Sero/Subtipo 4:P1.2,5. Las cepas de N. Meningitidis serogrupo B identificadas, correspondían a 25 serosubtipos diferentes. La prevalencia puntual

  5. Causes of Admission for Raptors to the Tafira Wildlife Rehabilitation Center, Gran Canaria Island, Spain: 2003-13.

    Science.gov (United States)

    Montesdeoca, Natalia; Calabuig, Pascual; Corbera, Juan A; Orós, Jorge

    2016-07-01

    We report the causes of morbidity of 2,458 free-living raptors admitted to the Tafira Wildlife Rehabilitation Center on Gran Canaria Island, Spain, during 2003-13. The seasonal cumulative incidences were investigated while considering estimates of the wild populations in the region. These methods were used as a more accurate approach to assess the potential ecologic impact of different causes of morbidity. The most frequently admitted species were the Eurasian Kestrel ( Falco tinnunculus ; 53.0%), the Eurasian Long-eared Owl ( Asio otus canariensis; 28.1%), the Canary Islands Common Buzzard ( Buteo buteo insularum; 8.0%), and the Eurasian Barn Owl ( Tyto alba ; 4.4%). The most frequent causes of admission were trauma (33.8%), orphaned-young birds (21.7%), unknown (18.4%), and metabolic/nutritional disease (11.1%). Local morbidity caused by glue trapping and entanglement in burr bristlegrass (Setaria adhaerens) had prevalences of 5.0% and 1.8%, respectively. The highest number of admissions during the breeding and nonbreeding seasons was observed for the Eurasian Barn Owl and the Barbary Falcon ( Falco pelegrinoides ), respectively, mainly due to trauma of unknown origin.

  6. El «Edificio Central» en las Palmas de Gran Canaria – España

    Directory of Open Access Journals (Sweden)

    Ruiz Duerto, A.

    1972-11-01

    Full Text Available A description is given of the program, characteristics, and building solutions for this unique building, situated in downtown Las Palmas. The building complex is composed of two underground levels for parking, a ground-floor and mezzanine for commercial purposes, and open plaza with swimming pool, dressing rooms, cafeteria, restaurant, dance spot, playground, and a block of 15 floors containing 137 apartments of varying size arranged so as to minimize sun overexposure and maximize privacy. The structure is of reinforced concrete and lightweight slabs, and enjoys quality fixtures which assure excellent functioning.Se describe el programa, características y solución constructiva de este edificio singular, situado en el centro cívico de Las Palmas de Gran Canaria. Se compone de: — dos plantas de sótano para estacionamiento de vehículos; planta baja comercial; — entreplanta comercial; — planta libre ajardinada con piscina, vestuarios-aseos, cafetería, restaurante, club de baile, juego de niños, guardería, etc.; — un bloque de 15 plantas con 137 apartamentos, de superficie variada, y dispuesto de forma que evite perjuicios de soleamiento y vistas a los edificios circundantes. Estructura de hormigón armado y losas aligeradas, con toda suerte de instalaciones que aseguren su perfecto funcionamiento.

  7. Massive decline of Cystoseira abies-marina forests in Gran Canaria Island (Canary Islands, eastern Atlantic

    Directory of Open Access Journals (Sweden)

    José Valdazo

    2017-12-01

    Full Text Available Brown macroalgae within the genus Cystoseira are some of the most relevant “ecosystem-engineers” found throughout the Mediterranean and the adjacent Atlantic coasts. Cystoseira-dominated assemblages are sensitive to anthropogenic pressures, and historical declines have been reported from some regions. In particular, Cystoseira abies-marina, thriving on shallow rocky shores, is a key species for the ecosystems of the Canary Islands. In this work, we analyse changes in the distribution and extension of C. abies-marina in the last decades on the island of Gran Canaria. This alga dominated the shallow rocky shores of the entire island in the 1980s; a continuous belt extended along 120.5 km of the coastline and occupied 928 ha. In the first decade of the 21st century, fragmented populations were found along 52.2 km of the coastline and occupied 12.6 ha. Today, this species is found along 37.8 km of the coastline and occupies only 7.4 ha, mainly as scattered patches. This regression has been drastic around the whole island, even in areas with low anthropogenic pressure; the magnitude of the decline over time and the intensity of local human impacts have not shown a significant correlation. This study highlights a real need to implement conservation and restoration policies for C. abies-marina in this region.

  8. Los orígenes del Instituto provincial de higiene de las Canarias orientales y la sanidad municipal (1926-1927: cambios estructurales y asistenciales

    Directory of Open Access Journals (Sweden)

    Martín del Castillo, Juan Francisco

    2005-12-01

    Full Text Available The «Instituto Provincial de Higiene de las Canarias Orientales» is an example of Estatuto Provincial of José Calvo Sotelo (1925. Involved in administrative affaires and economical distributions between the Townhall of Las Palmas de Gran Canaria and Insular Council, its beginning is labour of Doctor Antonio Ortiz de Landázuri, in that moment Health Inspector. In this paper, be described the structure and functions of Hygiene Institute, so the change of technical members of laboratories and stations of previous town health services.

    El Instituto Provincial de Higiene de las Canarias Orientales es un ejemplo de la puesta en marcha del Estatuto Provincial de José Calvo Sotelo (1925. Envuelto en medidas administrativas y repartos financieros entre el Ayuntamiento de Las Palmas de Gran Canaria y el Cabildo Insular, su inicio es obra directa del doctor Antonio Ortiz de Landázuri, en aquellos momentos al cargo de la Inspección de Sanidad. En el presente, quedan descritos la estructura y funciones del Instituto de Higiene, además del pase de los miembros facultativos de los laboratorios y estaciones de anteriores servicios municipales del ramo.

  9. Screening of emerging contaminants and priority substances (2008/105/EC) in reclaimed water for irrigation and groundwater in a volcanic aquifer (Gran Canaria, Canary Islands, Spain).

    Science.gov (United States)

    Estévez, Esmeralda; Cabrera, María del Carmen; Molina-Díaz, Antonio; Robles-Molina, José; Palacios-Díaz, María del Pino

    2012-09-01

    In semiarid regions, reclaimed water can be an important source of emerging pollutants in groundwater. In Gran Canaria Island, reclaimed water irrigation has been practiced for over thirty years and currently represents 8% of water resources. The aim of this study was to monitor contaminants of emerging concern and priority substances (2008/105/EC) in a volcanic aquifer in the NE of Gran Canaria where the Bandama Golf Course has been sprinkled with reclaimed water since 1976. Reclaimed water and groundwater were monitoring quarterly from July 2009 to May 2010. Only 43% of the 183 pollutants analysed were detected: 42 pharmaceuticals, 20 pesticides, 12 polyaromatic hydrocarbons, 2 volatile organic compounds and 2 flame retardants. The most frequent compounds were caffeine, nicotine, chlorpyrifos ethyl, fluorene, phenanthrene and pyrene. Concentrations were always below 50 ng L(-1), although some pharmaceuticals and one pesticide, cholrpyrifos ethyl, were occasionally detected at higher concentrations. This priority substance for surface water exceeded the maximum threshold (0.1 μg L(-1)) for pesticide concentration in groundwater (2006/118/EC). Sorption and degradation processes in soil account for more compounds being detected in reclaimed water than in groundwater, and that some contaminants were always detected in reclaimed water, but never in groundwater (flufenamic acid, propyphenazone, terbutryn and diazinon). Furthermore, erythromycin was always detected in reclaimed water (exceeding occasionally 0.1 μg L(-1)), and was detected only once in groundwater. In contrast, some compounds (phenylephrine, nifuroxazide and miconazole) never detected in reclaimed water, were always detected in groundwater. This fact and the same concentration range detected for the groups, regardless of the water origin, indicated alternative contaminant sources (septic tanks, agricultural practices and sewerage breaks). The widespread detection of high adsorption potential compounds

  10. La percepción sobre la inclusión del alumnado con discapacidad auditiva en la Educación Secundaria, Educación Superior y enseñanzas de régimen especial en Gran Canaria

    OpenAIRE

    Mesa Suárez, José Luis

    2014-01-01

    Programa de doctorado: Formación del Profesorado. [ES] El objetivo principal de esta tesis doctoral es aportar resultados que permitan un mejor conocimiento de la situación de los estudiantes con discapacidad auditiva en la Educación Secundaria Obligatoria, Ciclos Formativos, Estudios Universitarios y Enseñanzas de Régimen Especial en Gran Canaria. Teniendo en cuenta el incremento de estudiantes con sordera o hipoacusia, que esperan ingresar en estas enseñanzas, se plantea la necesidad de ...

  11. Observations of one young and three middle-aged γ-ray pulsars with the Gran Telescopio Canarias

    Science.gov (United States)

    Mignani, R. P.; Testa, V.; Rea, N.; Marelli, M.; Salvetti, D.; Torres, D. F.; De Oña Wilhelmi, E.

    2018-04-01

    We used the 10.4m Gran Telescopio Canarias to search for the optical counterparts to four isolated γ-ray pulsars, all detected in the X-rays by either XMM-Newton or Chandra but not yet in the optical. Three of them are middle-aged pulsars - PSR J1846+0919 (0.36 Myr), PSR J2055+2539 (1.2 Myr), PSR J2043+2740 (1.2 Myr) - and one, PSR J1907+0602, is a young pulsar (19.5 kyr). For both PSR J1907+0602 and PSR J2055+2539 we found one object close to the pulsar position. However, in both cases such an object cannot be a viable candidate counterpart to the pulsar. For PSR J1907+0602, because it would imply an anomalously red spectrum for the pulsar and for PSR J2055+2539 because the pulsar would be unrealistically bright (r' = 20.34 ± 0.04) for the assumed distance and interstellar extinction. For PSR J1846+0919, we found no object sufficiently close to the expected position to claim a possible association, whereas for PSR J2043+2740 we confirm our previous findings that the object nearest to the pulsar position is an unrelated field star. We used our brightness limits (g' ≈ 27), the first obtained with a large-aperture telescope for both PSR J1846+0919 and PSR J2055+2539, to constrain the optical emission properties of these pulsars and investigate the presence of spectral turnovers at low energies in their multi-wavelength spectra.

  12. [Guillain-Barré syndrome in the northern area of Gran Canaria and the island of Lanzarote].

    Science.gov (United States)

    Aladro-Benito, Y; Conde-Sendin, M A; Muñoz-Fernández, C; Pérez-Correa, S; Alemany-Rodríguez, M J; Fiuza-Pérez, M D; Alamo-Santana, F

    The objective of this study is to analyse the incidence and clinical characteristics of Guillain Barre syndrome (GBS) in the Canary Islands. We conducted a retrospective study of GBS patients (according to diagnostic criteria from the National Institute of Neurological and Communicative Disorders and Stroke) treated in the Ntra. Sra. del Pino Hospital in Gran Canaria between 1983 and 1998. Annual incidence, seasonal distribution, preceding infection, clinical and electrophysiological data, and evolution were all evaluated. Prognostic factors were studied by means of a univariate analysis. A total of 81 patients were selected for the study. The raw incidence was 1.04/100,000 inhab./year (CI 95%: 0.83 1.29; adjusted for age to the European population: 1.5). The rates of incidence were higher in men and increased lineally with age in both sexes. We observed an upward tendency during the winter months. 48% of the patients displayed serious motor deficits in the nadir of the disease, and 17.8% required assisted ventilation. After one year s evolution 74% were seen to experience an excellent recovery. The mortality rate was 8.2% and 37% received immunomodulatory treatment. The main variables associated with a bad prognosis at 3 and 12 months were: serious deficits in muscular balance, the need for assisted ventilation and very reduced amplitude of evoked motor potential. GBS incidence in the Canary Islands is similar to that found in other countries. An increase with age and an upward tendency during the winter months was observed. No differences were found in the clinical data as compared with other series.

  13. Frecuencia de los formantes de las vocales medias en sílaba final de palabra con elisión de -/s/: un estudio con materiales de la norma culta de Las Palmas de Gran Canaria

    OpenAIRE

    Pérez Martín, Ana María; Troya Déniz, Magnolia

    2012-01-01

    [ES]El propósito de este artículo es comprobar si la supresión de -/s/ final de palabra condiciona la articulación de las vocales medias pronunciadas por hablantes con estudios universitarios de Las Palmas de Gran Canaria. Para ello, no solo se calculan las frecuencias de los formantes de /e/ y /o/ y se establecen sus campos de dispersión, sino que, además, se examina si la información gramatical de la consonante elidida o los factores sexo y edad pueden influir en la altura frecuencial de lo...

  14. Paediatric invasive pneumococcal disease on the island of Gran Canaria: 16-year prospective study (2001-2016).

    Science.gov (United States)

    Santana Hernández, Milagrosa; Aguiar-Santana, Ione Ahedey; Artiles Campelo, Fernando; Colino Gil, Elena

    2017-11-24

    To calculate the incidence of invasive pneumococcal disease (IPD) in the paediatric population of Gran Canaria (Spain), its clinical and epidemiological characteristics, serotype distribution, antibiotic resistance, and variations in these variables before and after the introduction of the PCV13 vaccine. Prospective hospital-based study including all patients (190) aged 0-14 years admitted with confirmed IPD between January 2001-May 2010 (152 cases) and June 2010-December 2016 (38 cases). Patients were divided into 3 age groups (5 years). Clinical symptoms were mutually-exclusively classified as meningitis, bacteraemic pneumonia, pleural effusion (PE), empyema or bacteraemia without a focus. Most cases occurred in boys (59.47%), during autumn-winter (65.79%), in children aged <2 years (55.79%) and with mean age increasing from the pre-PCV13 to the post-PCV13 period (2.5 vs 3.1 years). Incidence between periods reduced by 66.4% (p<0.001): from 13.1/100,000 to 4.4/100,000. PEs (3.9% vs 18.4%, p<0.005) and empyemas (1.5% vs 16.7%, p=NS) increased in the post-PCV13 period whereas all other symptoms decreased, although this was not statistically significant. Vaccine serotypes (77% vs 40.6%, p=0.000), particularly serotypes 19A (23.9% vs 12.5%) and 14 (14.2% vs 9.4%), as well as erythromycin resistance (57.2% vs 7.9%, p=0.000) decreased in the post-PCV13 period. IPD incidence, vaccine serotypes and erythromycin resistance decreased in the post-PCV13 period whereas PEs increased. Copyright © 2017 Elsevier España, S.L.U. and Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica. All rights reserved.

  15. A long-term retrospective study on rehabilitation of seabirds in Gran Canaria Island, Spain (2003-2013.

    Directory of Open Access Journals (Sweden)

    Natalia Montesdeoca

    Full Text Available The aims of this study were to analyze the causes of morbidity and mortality in a large population of seabirds admitted to the Tafira Wildlife Rehabilitation Center (TWRC in Gran Canaria Island, Spain, from 2003 to 2013, and to analyze the outcomes of the rehabilitation process.We included 1,956 seabirds (133 dead on admission and 1,823 admitted alive in this study. Causes of morbidity were classified into nine categories: light pollution (fallout, fishing gear interaction, crude oil, poisoning/intoxication, other traumas, metabolic/nutritional disorder, orphaned young birds, other causes, and unknown/undetermined. The crude and stratified (by causes of admission rates of the three final disposition categories (euthanasia Er, unassisted mortality Mr, and release Rr, the time until death, and the length of stay were also studied for the seabirds admitted alive.Yellow-legged Gull (Larus michahellis was the species most frequently admitted (46.52%, followed by Cory's Shearwater (Calonectris diomedea borealis (20.09%. The most frequent causes of morbidity were light pollution (fallout (25.81%, poisoning/intoxication (24.69%, and other traumas (18.14%. The final disposition rates were: Er = 15.35%, Mr = 16.29%, and Rr = 68.34%. The highest Er was observed in the 'other traumas' category (58.08%. Seabirds admitted due to metabolic/nutritional disorder had the highest Mr (50%. The highest Rr was observed in the light pollution (fallout category (99.20%.This survey provides useful information for the conservation of several seabird species. We suggest that at least the stratified analysis by causes of admission of the three final disposition rates, and the parameters time until death and length of stay at the center should be included in the outcome research of the rehabilitation of seabirds. The high release rate for seabirds (68.34% achieved at the TWRC emphasizes the importance of wildlife rehabilitation centers for the conservation of seabirds.

  16. Ribeiro's typology, genomes, and Spanish colonialism, as viewed from Gran Canaria and Colombia

    Directory of Open Access Journals (Sweden)

    Maria Cátira Bortolini

    2004-01-01

    Full Text Available Four biallelic and six multiallelic Y-chromosome polymorphisms were investigated in 59 Gran Canarian, 60 North African Berber and 46 Spanish subjects. These new data were merged with equivalent literature information to obtain the parental Y-chrosomomal contribution in Gran Canarians, Colombians, and Venezuelans. The results were then compared, for Gran Canarians and Colombians, to those derived from autosomal and mtDNA. In both groups, the Spanish Y-chromosome contribution was much more marked than that estimated using mtDNA. This analysis showed a usual trend in the Spanish Colonial history, characterized by a demographic collapse of the aboriginal population, but with considerable introgression of genes through native women. In accordance to D. Ribeiro's typology for peoples subjected to Colonialism, the Y-chromosomes of these admixed populations are classified as transplanted, their mtDNA as witness, and their autosome sets as new.

  17. [Macrolide-resistant Streptococcus pneumoniae on the islands of Gran Canaria and Lanzarote (Spain): molecular mechanisms and serogroup relationships].

    Science.gov (United States)

    Artiles, Fernando; Horcajada-Herrera, Iballa; Noguera-Catalán, Javier; Alamo-Antúnez, Isabel; Bordes-Benítez, Ana; Lafarga-Capuz, Bernardo

    2007-11-01

    Macrolide resistance in Streptococcus pneumoniae is coded by the ermB and mefA/E genes. The aim of this study was to determine the status of macrolide-resistance, the molecular mechanisms involved, the serogroup relationships, and the level of co-resistance in S. pneumoniae isolates from Gran Canaria and Lanzarote, in the Canary Islands, Spain. Macrolide resistance phenotypes were investigated in 261 S. pneumoniae clinical isolates over a two-year period (2004 and 2005). Genotypes were determined by PCR (detection of ermB and mefA/E genes). Overall macrolide resistance was 40.6% (106 isolates); 79.2% (84) of resistant isolates presented the MLSB phenotype (98.8% harbored the ermB gene), with a predominance of serogroup 19, and 20.8% (22) presented the M phenotype (77.3% displayed the mefA/E gene), all associated with serogroup 14. Worthy of note, the M phenotype was found in 8 invasive isolates from Lanzarote (80%) all from serogroup 14. The ermB and mefA/E genes were detected in 7 isolates belonging to serogroup 19. Absence of co-resistance was observed most frequently in serogroup 14 (66.7%). Co-resistance with penicillin G, tetracycline, and trimethoprim-sulfamethoxazole was associated with serogroup 19 (36.8%). Two isolates (0.8%) were resistant to telithromycin. The frequency of macrolide resistance mechanisms in the Canary Islands is different from that observed in the rest of Spain, particularly in Lanzarote, where 80% of isolates harbored the mefA/E gene and belonged to serogroup 14.

  18. Platería europea en Canarias. La bandeja de Teguise, la copa con tapa y las fuentes de la cetadral de Las Palmas

    Directory of Open Access Journals (Sweden)

    Jesús Pérez Morera

    2013-11-01

    Full Text Available Abordamos en este trabajo la correcta clasificaci6n de una serie de piezas da platería de origen flamenco, alemán y portugués existentes en Canarias que, aunque conocidas, habían pasado por españolas o americanas. Destacarnos la bandeja de la parroquia de Teguise (Lanzarote, labrada en Hamburgo por juergen Richels hacia 1680; la copa con tapa de la catedral de Las Palmas (Gran Canaria, realizada en Amberes por el maestro del compás en 1548-1549; y !as fuentes pertenecientes al obispo Vicuña y Zuazo de la misma catedral, marcadas en Lisboa a finales del siglo XVII.The current article approaches the correct classification of a variety o¡ flemish, german and portuguese silversmith's pieces located in the Canary Islands which, though very well known, had been considered form Spanish or american origin. We emphasize the tray from the Parisf of Teguise (Lanzarote\\, wrought in Hamburg by Juergen Richels circa 1680; the Chalice with Lid Las Palmas cathedral (Gran Canaria made in Antwerp by the Master  of  the compass in 1548-49; and the fountains belonging to Bishop Vicuña y Zuazo from the same cathedral, marked in Lisbon at the end of XVII century. 

  19. Escultismo y educación física en Canarias (1912-1920

    Directory of Open Access Journals (Sweden)

    Antonio S. Almeida Aguiar

    2013-10-01

    Full Text Available Uno de los movimientos juveniles que mayor repercusión ha tenido en la historia de la educación ha sido los Boy Scouts. Fundado en 1907 por el general Baden Powell, tenía como fin la mejora social de la juventud inglesa. La extensión de la asociación scout fue rápida y en todo el mundo. En España, al igual que en Canarias, fue introducida en 1912 por los militares. Entre los principales puntos de la pedagogía scout está la importancia de la educación física en el desarrollo del ser humano como parte integrante de su educación. Precisamente, la educación física y su extensión en Canarias deben mucho al escultismo. En el presente artículo trataremos de determinar los orígenes de la asociación en las islas, con especial incidencia en el consejo local de la ciudad de Las Palmas de Gran Canaria, así como la trascendencia que tuvo en la juventud la incorporación de la educación física como parte de la educación general.One of the most important youth movements in the history of education has been the Boy Scouts. Founded in 1907 by General Baden Powell, whose aim was to improve the social conditions of the English youth. The wide- ranging scope of the scout’s association developed rapidly across the globe. In Spain, as in the Canary Islands, it was started in 1912 by the military. Its main educational functions include physical education in developing the personal growth of human beings as an integral part of their overall education. Indeed, physical education and its development in the Canary Islands owe much to the scout movement. In the present paper we will explore the origins of the association in the islands, with emphasis on the local council in Las Palmas de Gran Canaria.

  20. Biomarker responsiveness in different tissues of caged Ruditapes philippinarum and its use within an integrated sediment quality assessment

    Energy Technology Data Exchange (ETDEWEB)

    Ramos-Gomez, Julia, E-mail: julia.ramosgomez@uca.es [UNITWIN/UNESCO/WiCoP, Departamento de Quimica Fisica, Universidad de Cadiz, Facultad de Ciencias del Mar y Ambientales, Campus Universitario de Puerto Real, 11510 Puerto Real, Cadiz (Spain); Coz, Alberto; Viguri, Javier R. [Dpto. Ingenieria Quimica y Quimica Inorganica, ETSIIT, Universidad de Cantabria, Avda. los Castros, s/n 39005 Santander (Spain); Luque, Angel [Departamento de Biologia, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Gran Canaria, The Canary Islands (Spain); Martin-Diaz, M. Laura [UNITWIN/UNESCO/WiCoP, Departamento de Quimica Fisica, Universidad de Cadiz, Facultad de Ciencias del Mar y Ambientales, Campus Universitario de Puerto Real, 11510 Puerto Real, Cadiz (Spain); Centro Andaluz de Ciencia y Tecnologia Marinas (CACYTMAR), Universidad de Cadiz, Campus Universitario de Puerto Real, 11510 Puerto Real, Cadiz (Spain); DelValls, T. Angel [UNITWIN/UNESCO/WiCoP, Departamento de Quimica Fisica, Universidad de Cadiz, Facultad de Ciencias del Mar y Ambientales, Campus Universitario de Puerto Real, 11510 Puerto Real, Cadiz (Spain)

    2011-07-15

    Biomarkers comprising activities of biotransformation enzymes (ethoxyresorufin-O-deethylase -EROD-, dibenzylfluorescein dealkylase -DBF-, glutathione S-transferase -GST), antioxidant enzymes (glutathione reductase -GR- and glutathione peroxidase -GPX), lipid peroxidation -LPO- and DNA strand breaks were analyzed in the clam Ruditapes philippinarum caged at Cadiz Bay, Santander Bay and Las Palmas de Gran Canaria (LPGC) Port (Spain). Sediments were characterized. Digestive gland was the most sensitive tissue to sediment contamination. In Cadiz Bay, changes in LPO regarding day 0 were related with metals. In LPGC Port, DBF, EROD, and GST activity responses suggested the presence of undetermined contaminants which might have led to DNA damage. In Santander Bay, PAHs were related with EROD activity, organic and metal contamination was found to be associated with GR and GST activities and DNA damage presented significant (p < 0.05) induction. R. philippinarum was sensitive to sediment contamination at biochemical level. Biomarkers allowed chemical exposure and sediment quality assessment. - Highlights: > Ruditapes philippinarum is sensitive to sediment contamination at biochemical level. > Digestive gland biomarkers showed the best correlations with sediment contaminants. > Presence of potentially toxic chemicals not analyzed in this research was unmasked. > Multivariate analysis allowed the identification of toxic xenobiotic and possible sources. > Inner area of Santander Bay presented the highest sediment toxicity. - Integration of Ruditapes philippinarum biomarker results and sediment chemistry distinguished xenobiotic exposure and sediment toxicity in coastal areas of Spain.

  1. A long-term retrospective study on rehabilitation of seabirds in Gran Canaria Island, Spain (2003-2013)

    Science.gov (United States)

    Montesdeoca, Natalia; Calabuig, Pascual; Corbera, Juan A.

    2017-01-01

    Aims The aims of this study were to analyze the causes of morbidity and mortality in a large population of seabirds admitted to the Tafira Wildlife Rehabilitation Center (TWRC) in Gran Canaria Island, Spain, from 2003 to 2013, and to analyze the outcomes of the rehabilitation process. Methods We included 1,956 seabirds (133 dead on admission and 1,823 admitted alive) in this study. Causes of morbidity were classified into nine categories: light pollution (fallout), fishing gear interaction, crude oil, poisoning/intoxication, other traumas, metabolic/nutritional disorder, orphaned young birds, other causes, and unknown/undetermined. The crude and stratified (by causes of admission) rates of the three final disposition categories (euthanasia Er, unassisted mortality Mr, and release Rr), the time until death, and the length of stay were also studied for the seabirds admitted alive. Results Yellow-legged Gull (Larus michahellis) was the species most frequently admitted (46.52%), followed by Cory’s Shearwater (Calonectris diomedea borealis) (20.09%). The most frequent causes of morbidity were light pollution (fallout) (25.81%), poisoning/intoxication (24.69%), and other traumas (18.14%). The final disposition rates were: Er = 15.35%, Mr = 16.29%, and Rr = 68.34%. The highest Er was observed in the ‘other traumas’ category (58.08%). Seabirds admitted due to metabolic/nutritional disorder had the highest Mr (50%). The highest Rr was observed in the light pollution (fallout) category (99.20%). Conclusions This survey provides useful information for the conservation of several seabird species. We suggest that at least the stratified analysis by causes of admission of the three final disposition rates, and the parameters time until death and length of stay at the center should be included in the outcome research of the rehabilitation of seabirds. The high release rate for seabirds (68.34%) achieved at the TWRC emphasizes the importance of wildlife rehabilitation

  2. ¡Hola! Me llamo Arminda... ¿y tú? A global communication project for Gran Canaria’s Archaeological Heritage

    Directory of Open Access Journals (Sweden)

    Carmen Gloria Rodríguez Santana

    2016-12-01

    Full Text Available The opening of the Museum and Archaeological Park of Cueva Pintada (Gáldar, Gran Canaria was the culmination of the recovery of one of the most remarkable sites of the pre-Hispanic culture in the Canary Islands (Spain. A great part of the exhibition revolves around the figure of Arminda, a historical character that lived in the site during the late 15th Century. This character has also become the main figure in the different activities designed for children and families, such as tales, puppet shows, workshops, etc., in which this Canarian girl plays a central role. The project exposed in this paper is the work of an interdisciplinary team that has transformed Arminda into a loyal ally to transmit the contents linked to the pre-Hispanic period in Gran Canaria and especially to create a motivating environment for the public, able to transform the museum into a space for sharing, thinking and enjoying History.

  3. Clero americano y secularización en Canarias

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    Juan Manuel SANTANA PÉREZ

    2009-12-01

    Full Text Available En general siempre se ha hablado de lo que el Archipiélago Canario aportó en América y en pocas ocasiones se ha tratado el fenómeno inverso.Una orden religiosa, de las pocas que no procedían de Europa, se fundó allí y trató de incorporarse a la vida española empezando por las Islas Canarias, pero tropezó con una serie de obstáculos que a la larga fueron insalvables: los bethlemitas.Los problemas surgidos ante la solicitud de los religiosos bethlemitas para instalarse en el Archipiélago, son un claro ejemplo de la lucha entre el Estado y la Iglesia por controlar la asistencia social y la instrucción pública durante el Antiguo Régimen, dos importantes parcelas de la supraestructura.Los intentos de fundar esta orden, encargada de la beneficencia y de la educación de la juventud, en las Islas Canarias, no se produjo en otras zonas del Estado español, por lo cual nos encontramos ante un fenómeno particular. Además es de gran interés observar como las relaciones canario-americanas no sólo se produjeron de forma unilateral, sino que en muchos casos fueron recíprocas, como si se tratase de un «efecto boomerang»

  4. Caracterización del ambiente atmosférico en Las Palmas de Gran Canaria y Santa Cruz de Tenerife. 2000 a 2004

    Directory of Open Access Journals (Sweden)

    Elena López Villarrubia

    2008-01-01

    Full Text Available Fundamento: El carácter insular de las ciudades de Las Palmas de Gran Canaria y Santa Cruz de Tenerife, su meteorología y la proximidad del continente africano que favorece la llegada de material particulado de origen natural sobre las islas, determinan unas especificidades en su calidad del aire. El objetivo de este artículo es la caracterización de la contaminación atmosférica durante los años 2000 a 2004 como indicador de exposición de los habitantes de estas dos ciudades. Métodos: Se elaboraron los siguientes indicadores de contaminación: promedios de 24 horas de PM10, PM2,5, NO2, SO2 y O3; máximo de las 17 medias móviles octohorarias diarias de O3 y CO; máximo horario diario de SO2, NO2, O3, CO, PM10 y PM2,5. También se calcularon los niveles de la moda gruesa de partículas, como la diferencia entre los valores de PM10 y PM2,5 (PM10-2,5. Se identificaron episodios de intrusión africana. Resultados: En Sta Cruz de TF los promedios de SO2 (14ug/m3N y de O3 (44,4 ug/m3N fueron superiores respecto a los de Las Palmas de GC (8 y 28,3 ug/m3N. Los promedios de NO2 en Las Palmas de GC: 45,8 ug/m3N fueron superiores a los de Sta. Cruz de TF: 30,3 ug/m3N. Debido a las intrusiones africanas, algunos días superaron los 600 ug/m3 de PM10 y los 200 de PM2.5 en ambas ciudades. Conclusiones: Se identifica un patrón de calidad del aire con episodios de polvo mineral africano que en superficie afecta a todas las fracciones granulométricas, una estacionalidad diferente a las ciudades europeas respecto al ozono, así como un patrón de contaminación urbano-industrial en Sta. Cruz de Tf y netamente urbano en Las Palmas de GC. Se hace necesario tener en cuenta estos resultados para analizar su posible impacto sobre la salud de los ciudadanos de las Islas Canarias y establecer sistemas adecuados de vigilancia.

  5. Biomarker responsiveness in different tissues of caged Ruditapes philippinarum and its use within an integrated sediment quality assessment

    International Nuclear Information System (INIS)

    Ramos-Gomez, Julia; Coz, Alberto; Viguri, Javier R.; Luque, Angel; Martin-Diaz, M. Laura; DelValls, T. Angel

    2011-01-01

    Biomarkers comprising activities of biotransformation enzymes (ethoxyresorufin-O-deethylase -EROD-, dibenzylfluorescein dealkylase -DBF-, glutathione S-transferase -GST), antioxidant enzymes (glutathione reductase -GR- and glutathione peroxidase -GPX), lipid peroxidation -LPO- and DNA strand breaks were analyzed in the clam Ruditapes philippinarum caged at Cadiz Bay, Santander Bay and Las Palmas de Gran Canaria (LPGC) Port (Spain). Sediments were characterized. Digestive gland was the most sensitive tissue to sediment contamination. In Cadiz Bay, changes in LPO regarding day 0 were related with metals. In LPGC Port, DBF, EROD, and GST activity responses suggested the presence of undetermined contaminants which might have led to DNA damage. In Santander Bay, PAHs were related with EROD activity, organic and metal contamination was found to be associated with GR and GST activities and DNA damage presented significant (p < 0.05) induction. R. philippinarum was sensitive to sediment contamination at biochemical level. Biomarkers allowed chemical exposure and sediment quality assessment. - Highlights: → Ruditapes philippinarum is sensitive to sediment contamination at biochemical level. → Digestive gland biomarkers showed the best correlations with sediment contaminants. → Presence of potentially toxic chemicals not analyzed in this research was unmasked. → Multivariate analysis allowed the identification of toxic xenobiotic and possible sources. → Inner area of Santander Bay presented the highest sediment toxicity. - Integration of Ruditapes philippinarum biomarker results and sediment chemistry distinguished xenobiotic exposure and sediment toxicity in coastal areas of Spain.

  6. Prevalence and determinants of the metabolic syndrome among subjects with advanced nondiabetes-related chronic kidney disease in Gran Canaria, Spain.

    Science.gov (United States)

    Boronat, Mauro; Bosch, Elvira; Lorenzo, Dionisio; Quevedo, Virginia; López-Ríos, Laura; Riaño, Marta; García-Delgado, Yaiza; García-Cantón, César

    2016-01-01

    The relationship between the metabolic syndrome and mild chronic kidney disease (CKD) has been extensively studied. This study was aimed to estimate the prevalence and factors associated with the metabolic syndrome among subjects with advanced stages of nondiabetes-related CKD. Study population was composed of incident patients with advanced CKD not related to diabetes in a tertiary hospital from Gran Canaria (Spain) since February 2011 to December 2014. Participants fulfilled a survey questionnaire and underwent physical examination and biochemical evaluation. The sample was composed of 167 subjects (mean age 63.9 ± 13.7 years; estimated glomerular filtration rate 21.9 ± 6.6 mL/min/1.73 m(2)). The prevalence of the metabolic syndrome was 68.9% (65.2% in men and 73.3% in women). Highest rates were observed in groups with chronic interstitial nephropathy (80%), CKD of uncertain etiology (76.7%) and CKD related to vascular causes (76.2%). Subjects with metabolic syndrome were older, had higher values of C-reactive protein and more often reported to have first-degree relatives with diabetes and to be physically inactive. In multivariate analyses, age (OR: 1.034 [CI 95%: 1.004-1.065]; p  =  0.024) and family history of diabetes (OR: 2.550 [1.159-5.608]; p  =  0.020) were independently associated with the metabolic syndrome. The prevalence of the metabolic syndrome among subjects with advanced nondiabetes-related CKD is high, and greater than that observed in general Canarian population of similar age groups. Age and family history of diabetes are the two factors more strongly associated with the metabolic syndrome in this population.

  7. FILTER-INDUCED BIAS IN Lyα EMITTER SURVEYS: A COMPARISON BETWEEN STANDARD AND TUNABLE FILTERS. GRAN TELESCOPIO CANARIAS PRELIMINARY RESULTS

    Energy Technology Data Exchange (ETDEWEB)

    De Diego, J. A.; De Leo, M. A. [Instituto de Astronomía, Universidad Nacional Autónoma de México Avenida Universidad 3000, Ciudad Universitaria, C.P. 04510, Distrito Federal (Mexico); Cepa, J.; Bongiovanni, A. [Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife (Spain); Verdugo, T. [Centro de Investigaciones de Astronomía (CIDA), Apartado Postal 264, Mérida 5101-A (Venezuela, Bolivarian Republic of); Sánchez-Portal, M. [Herschel Science Centre (HSC), European Space Agency Centre (ESAC)/INSA, Villanueva de la Cañada, Madrid (Spain); González-Serrano, J. I., E-mail: jdo@astro.unam.mx [Instituto de Física de Cantabria (CSIC-Universidad de Cantabria), E-39005 Santander (Spain)

    2013-10-01

    Lyα emitter (LAE) surveys have successfully used the excess in a narrowband filter compared to a nearby broadband image to find candidates. However, the odd spectral energy distribution (SED) of LAEs combined with the instrumental profile has important effects on the properties of the candidate samples extracted from these surveys. We investigate the effect of the bandpass width and the transmission profile of the narrowband filters used for extracting LAE candidates at redshifts z ≅ 6.5 through Monte Carlo simulations, and we present pilot observations to test the performance of tunable filters to find LAEs and other emission-line candidates. We compare the samples obtained using a narrow ideal rectangular filter, the Subaru NB921 narrowband filter, and sweeping across a wavelength range using the ultra-narrow-band tunable filters of the instrument OSIRIS, installed at the 10.4 m Gran Telescopio Canarias. We use this instrument for extracting LAE candidates from a small set of real observations. Broadband data from the Subaru, Hubble Space Telescope, and Spitzer databases were used for fitting SEDs to calculate photometric redshifts and to identify interlopers. Narrowband surveys are very efficient in finding LAEs in large sky areas, but the samples obtained are not evenly distributed in redshift along the filter bandpass, and the number of LAEs with equivalent widths <60 Å can be underestimated. These biased results do not appear in samples obtained using ultra-narrow-band tunable filters. However, the field size of tunable filters is restricted because of the variation of the effective wavelength across the image. Thus, narrowband and ultra-narrow-band surveys are complementary strategies to investigate high-redshift LAEs.

  8. FILTER-INDUCED BIAS IN Lyα EMITTER SURVEYS: A COMPARISON BETWEEN STANDARD AND TUNABLE FILTERS. GRAN TELESCOPIO CANARIAS PRELIMINARY RESULTS

    International Nuclear Information System (INIS)

    De Diego, J. A.; De Leo, M. A.; Cepa, J.; Bongiovanni, A.; Verdugo, T.; Sánchez-Portal, M.; González-Serrano, J. I.

    2013-01-01

    Lyα emitter (LAE) surveys have successfully used the excess in a narrowband filter compared to a nearby broadband image to find candidates. However, the odd spectral energy distribution (SED) of LAEs combined with the instrumental profile has important effects on the properties of the candidate samples extracted from these surveys. We investigate the effect of the bandpass width and the transmission profile of the narrowband filters used for extracting LAE candidates at redshifts z ≅ 6.5 through Monte Carlo simulations, and we present pilot observations to test the performance of tunable filters to find LAEs and other emission-line candidates. We compare the samples obtained using a narrow ideal rectangular filter, the Subaru NB921 narrowband filter, and sweeping across a wavelength range using the ultra-narrow-band tunable filters of the instrument OSIRIS, installed at the 10.4 m Gran Telescopio Canarias. We use this instrument for extracting LAE candidates from a small set of real observations. Broadband data from the Subaru, Hubble Space Telescope, and Spitzer databases were used for fitting SEDs to calculate photometric redshifts and to identify interlopers. Narrowband surveys are very efficient in finding LAEs in large sky areas, but the samples obtained are not evenly distributed in redshift along the filter bandpass, and the number of LAEs with equivalent widths <60 Å can be underestimated. These biased results do not appear in samples obtained using ultra-narrow-band tunable filters. However, the field size of tunable filters is restricted because of the variation of the effective wavelength across the image. Thus, narrowband and ultra-narrow-band surveys are complementary strategies to investigate high-redshift LAEs

  9. Emigración y actividad empresarial canaria en Cuba, 1850-1950

    Directory of Open Access Journals (Sweden)

    Miguel Suárez Bosa

    2013-09-01

    Full Text Available Los emprendedores canarios contribuyeron a la construcción del tejido empresarial cubano mediante la creación y desarrollo de una gran variedad de empresas: pequeños propietarios agrícolas del tabaco, comerciantes internacionales, titanes del sector financiero y propietarios de centrales azucareros; otros terminaron especializándose en pequeñas empresas de servicios urbanos como la distribución de leche. En este artículo se analizan, en primer lugar, las migraciones canarias en el contexto de las cadenas migratorias atlánticas; en segundo lugar, se exponen los aspectos más importantes del desarrollo empresarial protagonizado por los emigrantes isleños en Cuba.

  10. Aplicación de técnicas de teledetección al estudio de la turbidez de las aguas litorales en la costa oriental de Gran Canaria mediante un modelo teórico

    Directory of Open Access Journals (Sweden)

    Juan Francisco Hernández Bartolomé

    2013-11-01

    Full Text Available La creciente presión antrópica sobre los litorales exige de las Administraciones la puesta en marcha de controles, con el fin de conocer —y garantizar— la calidad del medio natural, de tal forma que permitan estimar su deterioro y, en caso necesario, proceder a entablar medidas que posibiliten su salvaguarda. Con ello, además, se garantiza la protección de la sociedad frente a posibles afecciones inducidas por sus propias actividades. Entre los seguimientos que hoy cobran más interés se encuentra el control de la calidad de las aguas costeras, labor que se realiza, normalmente, mediante técnicas de muestreo y análisis sistemático de componentes. En este campo, las técnicas de Teledetección posibilitan un mejor y más exacto seguimiento, dadas las resoluciones de los sensores situados a bordo de plataformas espaciales. Siguiendo esta línea, este estudio pretende mostrar las posibilidades de estas técnicas, aplicando para ello un método de trabajo basado en un modelo teórico, que permite extraer los principales rasgos de un episodio de turbidez en la costa oriental de Gran Canaria.The growing human activities on the coastal zones, cause to the Civil Services to take necessaries controls to know the quality of the environment, to estimate their damage, and if necessary, to establish steps to protect them; and also to protect the human societies from hypothetical illness induced by themselves. Among the more used controls today, the quality of coastal waters has got special interest, work usually made by systematic analysis of samples taken along the studies zones. In this field, remote sensing techniques guarantee a better and more exact control, due to the resolutions of sensors aboard space platforms. In this line, this study try to show the possibilities of these techniques, applying a work method based on a theoretical model, which allows us to extract the principal features of a turbidity episode in the eastern coast of Gran

  11. El paisaje como recurso turístico de la ciudad. Una propuesta metodológica para valorar el papel de la planificación del territorio en el caso de Las Palmas de Gran Canaria / The landscape as a city tourism resource. A methodological for assessing...

    Directory of Open Access Journals (Sweden)

    Santiago Hernández Torres

    2014-12-01

    Full Text Available Se propone una metodología para la valoración de las relaciones entre la ciudad, el turismo y la planificación del territorio desde la perspectiva del paisaje y el medio ambiente. Para ello, analizamos como las estrategias de mejora de la competitividad turística de las ciudades tienen su traslación en la planificación urbanística de los ayuntamientos y la relación o integración de los elementos que configuran ambientalmente el espacio urbano. Con este objeto genérico, se selecciona el ejemplo de Las Palmas de Gran Canaria como laboratorio de experiencias de ordenación del espacio, mediante las cuales puede observarse los indicadores y dificultades en el tratamiento de la calidad ambiental. Nos interesa distinguir cómo estos elementos ambientales se planifican como recursos turísticos y la relevancia que tienen en las estrategias públicas de la ordenación del territorio.A methodology is proposed to asses the relations among the city, tourism, and spatial planning from landscape and environmental perspective. To do this, we analyse how strategies to improve touristic competitiveness in the cities can be applied to spatial planning. To this end, the example of Las Palmas de Gran Canaria is selected, as a laboratory of spatial planning experiences, by which the indicators and difficulties in the environmental quality can be observed. We are interested in distinguishing how this environmental elements are planned as tourism resources and their level of importance in spatial planning.

  12. [Characterization of the atmospheric environment in Las Palmas de Gran Canaria and Santa Cruz de Tenerife, Spain: 2000-2004].

    Science.gov (United States)

    López Villarrubia, Elena; García Pérez, M Dolores; Peral Pérez, Nieves; Ballester Díez, Ferrán; Iñiguez Fernández, Carmen; Pita Toledo, M Luisa

    2008-01-01

    The island factor in the cities of Las Palmas de Gran Canaria and Santa Cruz de Tenerife, their meteorology and the proximity to the African Continent that originates the natural particulate matter transport over the islands, cause some specific features in their air quality. The aim of this paper is to characterize the air pollution from 2000 to 2004 as exposure indicator of both cities inhabitants. 24 hour daily average variables of PM10, PM2,5, NO2, SO2 and O3 , 8 hours daily maxima moving averages of O3 y CO and 1 hour maxima of SO2, NO2, O3, CO, PM10 y PM2,5 were calculated. Daily levels of coarse particles were obtained subtracting PM2,5 from PM10. African dust events were identified. In Sta. Cruz de Tf daily means of SO2 (14.0 microg/m(3)N) and ozone levels (44.4 microg/m(3)N ) were higher than Las Palmas de GC levels (8.0 y 28.3 microg/m(3)N). Daily means of NO2 in Las Palmas de GC: 45.8 microg/m(3)N where higher than Sta. Cruz de Tf levels: 30.3 microg/m(3)N. Due to African dust outbreaks, some days in both cities exceeded 600 microg/m(3) of PM10 and 200 of PM2.5 24-h average. The air quality patterns were characterized by very high levels of African dust outbreaks that affect all PM size fractions. Different O3 seasonality exists respect European cities in addition to an urban-industrial ambient air in Sta. Cruz de TF and clearly urban in Las Palmas de GC. These results have to be considered in order to lay the foundations to suitable surveillance systems, analyse the potential impact on the Canary Islands citizens health and to get conclusions.

  13. Gastro-enteritis outbreak among Nordic patients with psoriasis in a health centre in Gran Canaria, Spain: a cohort study

    Directory of Open Access Journals (Sweden)

    Rose Angela MC

    2004-10-01

    Full Text Available Abstract Background Between November 2 and 10, 2002 several patients with psoriasis and personnel staying in the health centre in Gran Canaria, Spain fell ill with diarrhoea, vomiting or both. Patient original came from Norway, Sweden and Finland. The patient group was scheduled to stay until 8 November. A new group of patients were due to arrive from 7 November. Methods A retrospective cohort study was conducted to assess the extent of the outbreak, to identify the source and mode of transmission and to prevent similar problems in the following group. Results Altogether 41% (48/116 of persons staying at the centre fell ill. Norovirus infection was suspected based on clinical presentations and the fact that no bacteria were identified. Kaplan criteria were met. Five persons in this outbreak were hospitalised and the mean duration of diarrhoea was 3 days. The consequences of the illness were more severe compared to many other norovirus outbreaks, possibly because many of the cases suffered from chronic diseases and were treated with drugs reported to affect the immunity (methotrexate or steroids. During the two first days of the outbreak, the attack rate was higher in residents who had consumed dried fruit (adjusted RR = 3.1; 95% CI: 1.4–7.1 and strawberry jam (adjusted RR = 1.9; 95% CI: 0.9–4.1 than those who did not. In the following days, no association was found. The investigation suggests two modes of transmission: a common source for those who fell ill during the two first days of the outbreak and thereafter mainly person to person transmission. This is supported by a lower risk associated with the two food items at the end of the outbreak. Conclusions We believe that the food items were contaminated by foodhandlers who reported sick before the outbreak started. Control measures were successfully implemented; food buffets were banned, strict hygiene measures were implemented and sick personnel stayed at home >48 hours after last

  14. Groundwater flow in a volcanic-sedimentary coastal aquifer: Telde area, Gran Canaria, Canary Islands, Spain

    Science.gov (United States)

    Cabrera, M. C.; Custodio, E.

    Groundwater conditions in a 75- km2 coastal area around the town of Telde in eastern Gran Canaria island have been studied. Pliocene to Recent volcanic materials are found, with an intercalated detrital formation (LPDF), which is a characteristic of the area. Groundwater development has become intensive since the 1950s, mostly for intensive agricultural irrigation and municipal water supply. The LPDF is one order of magnitude more transmissive and permeable than the underlying Phonolitic Formation when median values are compared (150 and 15 m2 day-1 5 and 0.5 m day-1, respectively). These two formations are highly heterogeneous and the ranges of expected well productivities partly overlap. The overlying recent basalts constituted a good aquifer several decades ago but now are mostly drained, except in the southern areas. Average values of drainable porosity (specific yield) seem to be about 0.03 to 0.04, or higher. Groundwater development has produced a conspicuous strip where the watertable has been drawn down as much as 40 m in 20 years, although the inland watertable elevation is much less affected. Groundwater reserve depletion contributes only about 5% of ed water, and more than 60% of this is transmitted from inland areas. Groundwater discharge into the sea may still be significant, perhaps 30% of total inflow to the area is discharged to the sea although this value is very uncertain. Les conditions de gisement de l'eau souterraine d'une région de 75 km2 de la côte Est de l'île de la Grande Canarie (archipel des Canaries), dans le secteur de Telde, ont été étudiées, en utilisant seulement les données fournies par les puits d'exploitation existants. Les matériaux volcaniques, d'âge Pliocène à sub-actuel, sont séparés par une formation détritique (FDLP), qui constitue la principale singularité de cette région. L'exploitation de l'eau souterraine est devenue intensive à partir de 1950, principalement pour des besoins d'irrigation (agriculture

  15. ESPACIOS TURÍSTICOS, ORDENACIÓN DEL TERRITORIO Y ACTITUDES POLÍTICAS, EL CASO DEL COMPLEJO HOTELERO CERCA VIEJA EN FUENCALIENTE DE LA PALMA (ISLAS CANARIAS. ESPAÑA

    Directory of Open Access Journals (Sweden)

    Carlos Santiago Martín Fernández

    2011-01-01

    Full Text Available El presente artículo describe los nexos o relaciones existentes entre tres aspectos de gran actualidad: el desarrollo inmobiliario-turístico, la ordenación del territorio y las estrategias políticas. Para ello, estudiamos un caso emblemático en Canarias: el proceso de construcción del Resort Cerca Vieja en Fuencaliente, isla de La Palma.

  16. Absolute paleointensities during a mid Miocene reversal of the Earth's magnetic field recorded on Gran Canaria (Canary Islands)

    Science.gov (United States)

    Leonhardt, R.; Soffel, H. C.

    2001-12-01

    An extensive paleointensity study was carried out on an approximately 14.1 Myr old reverse to normal transition of the geomagnetic field. One hundred eighty-eight samples from a mid Miocene volcanic sequence on Gran Canaria (Canary Islands) were subjected to Thellier-type paleointensity determinations. Samples for paleointensity experiments were selected on the basis of high Curie temperatures, low viscosity indexes, and limited variations of the remanence-carrying magnetic content during thermal treatment. A modified Thellier technique, which facilitates the recognition of MD tails and the formation of new magnetic remanences with higher blocking temperatures than the actual heating step, was used on the majority of the samples. The application of this technique proved to be very successful and we obtained reliable paleointensity results for 35% of the 87 sampled lava flows. In general, the intensity of the reversed and normal magnetized parts of the sequence, before and after the transition, is lower than the field intensity expected for the mid Miocene. This observation is very likely related to a long term reduction of the field close to transitions. The mean field intensity after the reversal ( ~ 17 μ T) is about twice the value of that recorded in the rocks prior to the reversal. This observation points at a fast recovery of the dipolar structure of the field after this reversal. Very low paleointensities with values < 5 μ T were obtained during an excursion, preceding the actual transition, and also close to significant changes of the local field directions during the reversal. This is interpreted as non-dipolar components becoming dominant for short periods and provoking a rapid change of local field directions. During the transition 15 successive lava flows recorded similar local field directions corresponding to a cluster of virtual geomagnetic poles close to South America. Chronologically, within this cluster the paleointensity increases from about 9

  17. El abastecimiento de pescado fresco en Las Palmas de Gran Canaria a fines del siglo XVIII

    Directory of Open Access Journals (Sweden)

    Antonio de BETHENCOURT MASSIEU

    2009-12-01

    Full Text Available En el transcurso del setecientos, particularmente en su segunda mitad, cruza sobre España, al igual que sobre el resto de Occidente, una polémica sobre las ventajas que reportaría la libertad de precio de los productos —su valor regulado por la ley de oferta y la demanda—, motor del desarrollo económico.No es ahora mi objeto detenerme en el análisis de la penetración de las doctrinas fisiocráticas y del librecambismo smithsoniano. Mi interés se reduce a cosa mucho más simple. Mostrar como también la polémica alcanzó a Canarias. Veremos la lucha que sostuvo la Real Sociedad Económica de Amigos del País de Las Palmas en pro de la abolición de la tasa del pescado fresco que consumía la población.

  18. Reconstructing Holocene vegetation on the island of Gran Canaria before and after human colonization

    DEFF Research Database (Denmark)

    de Nascimento, Lea; Nogué, Sandra; Criado, Constantino

    2016-01-01

    , 400 years before the earliest archaeological evidence of human presence in the island (c. 1900 cal. yr BP). Our data show an increased frequency of fires at that time, coinciding with the decline of palms and the increase of grasses, indicating that humans were present and were transforming vegetation......, thus showing that the demise of Gran Canaria’s forest began at an early point in the prehistoric occupation of the island. In the following centuries, there were no signs of forest recovery. Pollen from cultivated cereals became significant, implying the introduction of agriculture in the site, by 1800...

  19. Tarabilla canaria: ¿por qué tan vulnerable?

    OpenAIRE

    Illera, Juan Carlos; Díaz, Mariano; Nogales, Manuel

    2006-01-01

    Hoy en día la tarabilla canaria sólo vive en Fuerteventura. Que no esté asentada en otras islas de Canarias similares y cercanas, como Lanzarote y Lobos, parece indicar un déficit de habitats semiáridos de calidad. La fidelidad a sus territorios actuales hace a esta pequeña ave amenazada muy vulnerable a impactos como el desarrollo turístico, el exceso de pastoreo o la depredación por gatos asilvestrados.

  20. Profile of sodium phenylbutyrate granules for the treatment of urea-cycle disorders: patient perspectives

    OpenAIRE

    Pe?a-Quintana, Luis; Llarena, Marta; Reyes-Su?rez, Desiderio; Ald?miz-Echevarria, Luis

    2017-01-01

    Luis Peña-Quintana,1–3 Marta Llarena,2 Desiderio Reyes-Suárez,2 Luis Aldámiz-Echevarria4 1Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Universitario Materno-Infantil Hospital de Canarias, University of Las Palmas de Gran Canaria, 2Research Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria, Las Palmas, 3CIBEROBN, Madrid, 4Unit of Metabolism, Cruces University Hospital, BioCruces Health Research Insti...

  1. A General Approach to Nonrigid Registration: Decoupled Optimization

    Science.gov (United States)

    2001-10-25

    Juan Ruiz-Alzola Dep. Señales y Comunicaciones . Universidad de Las Palmas de Gran Canaria, SPAIN Dep. Teorı́a de la Señal,Universidad de...s) and Address(es) Dep. Senales y Communicaciones Universidad de Las Palma de Gran Canaria, Spain Performing Organization Report Number Sponsoring

  2. ESTILO DE VIDA Y ADHERENCIA AL TRATAMIENTO DE LA POBLACIÓN CANARIA CON DIABETES MELLITUS TIPO 2

    Directory of Open Access Journals (Sweden)

    Antonio Cabrera de León

    2009-01-01

    Full Text Available Fundamento: la población canaria sufre la mayor mortalidad por diabetes tipo 2 (DM2 en España. El objetivo de este estudio es conocer el estilo de vida de las personas diabéticas del archipiélago y su adherencia al tratamiento, así como la DM2 desconocida. Métodos: estudio transversal de 6.729 personas de la población general participantes en la cohorte "CDC de Canarias" (edad 18-75 años. Se obtuvieron sus antecedentes médicos, dieta, actividad física, medicamentos consumidos, tabaco, etc. Resultados: la prevalencia de DM2 fue 12% en varones y 10% en mujeres (p=0,005. El 22%de varones y 9% de mujeres desconocían su enfermedad (p<0,001. Sumando DM2 desconocida, DM2 no tratada e incumplimiento terapéutico, el 48% de los hombres y 28% en mujeres no seguían tratamiento correcto. Los varones diabéticos eran más obesos que los no diabéticos (45 versus 25%; p<0,001 pero no presentaban diferencias en tabaquismo (28%; IC95%=23-33 o sedentarismo (62%; IC95%=56-68. Las mujeres diabéticas también eran más obesas (54 versus 27%; p<0,001 y, aunque fumaban menos (11 versus 22%; p<0,001, eran igual de sedentarias (75%; IC95%=70-79. La ingesta calórica era menor en quienes sufrían DM2 (p<0,001, pero el 93% (IC95%=91-95 superaba el consumo recomendado de grasas saturadas y el 69% (IC95%=65-72 padecía síndrome metabólico. Conclusiones: la población diabética en Canarias es sedentaria y obesa, muestra un consumo alto de grasas saturadas y gran prevalencia de síndrome metabólico. El porcentaje que sigue tratamiento regular es muy bajo, sobretodo en varones, que además mantienen el tabaquismo.

  3. Marineros extranjeros en los protocolos notariales de Gran Canaria (1590-1599

    Directory of Open Access Journals (Sweden)

    María Berenice Moreno Florido

    2013-11-01

    Full Text Available Este trabajo de investigación pretende un análisis detallado y riguroso que nos ayude a tener un mayor conocimiento de la sociedad canaria y sobre todo de su relación con el exterior, centrándonos en el Atlántico europeo. De esta manera consideramos que se trata de una aportación más para el entendimiento profundo del Archipiélago canario durante el Antiguo Régimen. En este sentido debemos señalar que no existe un estudio de estas características que relacione la actividad de los marineros extranjeros y su actuación intrínseca con el comercio así como la vida de éstos y su entorno. Por este motivo hemos decidido realizar un análisis que abarque cada uno de los aspectos que podemos entresacar de la fuente empleada, los protocolos notariales. Del mismo modo el periodo escogido, 1590-1599, radica en la influencia de la política filipina en una época llena de hostilidades y decadencia para el Estado español. Así nos hemos centrado en la última etapa del reinado de Felipe II mostrando una década de contrabando y actividad pirática y corsaria de manera acusada en el Archipiélago canario. Asimismo a esta circunstancia debemos añadir las cuestiones religiosas caracterizadas por la extensión del protestantismo en Europa y la consecuente actuación del Concilio de Trento junto a la actividad inquisitorial que se tornará cada vez más rígida, fundamentalmente en los lugares de fronteras como es el caso isleño. Igualmente es importante tener en cuenta que la actividad económica se conforma como pilar del desarrollo y la evolución socio-económica de las Islas, sobre todo en su papel de enlace entre Europa, África y América.This research pretends to be a rundown and rigorous analysis that help us to have a better knowledge of the Canarian Society, and over all, its relationship with the outer, principally in the Europe Atlantic Ocean. In this way, we consider that it is another contribution for the deep understanding of the

  4. El abastecimiento y la saca de bastimentos de Gran Canaria : el pleito de D. Pdro Sarmiento de Ayala y Rojas

    Directory of Open Access Journals (Sweden)

    Germán Santana Pérez

    1996-01-01

    Full Text Available El abastecimiento de cereal era uno de los problemas más acuciantes a que se enfrentaron cada uno de los cabildos de las Islas Canarias durante todo el Antiguo Régimen. El hecho de la insularidad conllevaba a la vez, respecto a otras regiones continentales, una serie de ventajas y desventajas a la hora de asegurar el alimento. Durante este periodo, debido a la propia organización económica del Archipiélago, y a sus limitaciones, las continuas y periódicas malas cosechas afectaban cada pocos años a las producciones alimenticias de cada isla, no sólo de pan sino de otros mantenimientos comestibles, incluyendo el ganado, ya que al no haber siquiera pasto para que pudieran comer, en época de sequía, por plaga de langosta, etc., éste acababa pereciendo de hambre, lo que traía como efecto que la población sufriera estas consecuencias (si bien unas clases sociales más que otras.

  5. Molecular phylogenetics of Micromeria (Lamiaceae) in the Canary Islands, diversification and inter-island colonization patterns inferred from nuclear genes.

    Science.gov (United States)

    Puppo, Pamela; Curto, Manuel; Gusmão-Guedes, Joana; Cochofel, Jaqueline; Pérez de Paz, Pedro Luis; Bräuchler, Christian; Meimberg, Harald

    2015-08-01

    Here we reconstruct the evolutionary history of Micromeria in the Canary Islands using eight nuclear markers. Our results show two centers of diversification for Micromeria, one in the eastern islands Gran Canaria and Lanzarote, the other in the western islands, Tenerife, La Palma and El Hierro. Suggested directions of inter-island colonization are the following: Gran Canaria to Lanzarote and La Gomera; Tenerife to La Palma (from the paleoisland of Teno), to El Hierro (from the younger, central part), and to La Gomera and Madeira (from the paleoislands). Colonization of La Gomera probably occurred several times from Gran Canaria and Tenerife. The taxonomic implications of these results are discussed. Incongruence among the different markers was evaluated and, using next generation sequencing, we investigated if this incongruence is due to gene duplication. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Geophysical imaging of the lacustrine sediments deposited in the La Calderilla Volcanic Caldera (Gran Canaria Island, Spain) for paleoclimate research

    Science.gov (United States)

    Himi, Mahjoub; Rodríguez-González, Alejandro; Criado, Constantino; Tapias, Josefina C.; Ravazzi, Cesare; Pérez-Torrado, Francisco; Casas, Albert

    2016-04-01

    The discovery of well-preserved maar structures is important not only for studying the eruptive activity and formation of volcanoes, but also for paleoclimate research, since laminated maar lake sediments may contain very detailed archives of climate and environmental history. Maars are a singular type of volcanic structure generated by explosive phreatomagmatic eruptions as a result of interaction between rising magma and groundwater. This kind of structures are characterised by circular craters, often filled with water and/or lacustrine sediments and surrounded by a ring of pyroclastic deposits.Recently a borehole was drilled at the bottom of La Calderilla volcanic complex which penetrated about 8.7 m in its sedimentary sequence and paleobotanical study has supplied the first evidence of paleoenvironmental evolution during the Holocene on the Gran Canaria Island. This survey, however, did not penetrate into the substrate because the total thickness of the sedimentary fill was unknown. Since the age of formation of La Calderilla volcanic complex based on K/Ar dating is about 85,000 years (Upper Pleistocene), the possibility of its sedimentary fill extends beyond of the Holocene is extremely attractive, since, for example, there are few paleoenvironmental data regarding how much the last glaciation that affected the Canary Islands. In these circumstances, the knowledge of the total thickness of the lacustrine sediments is crucial to design a deeper borehole in the next future. Therefore, the subsurface characterisation provided by geophysics is essential for determining thickness and geometry of the sedimentary filling. Multielectrode ERT method was used to obtain five 2-D resistivity cross-sections into La Calderilla volcanic caldera. An Iris Syscal Pro resistivity system with 48 electrodes connected to a 94 m long cable (2m electrode spacing) in Wenner-Schlumberger configuration for an investigation depth of about 20 m. Data quality (q Current injected was

  7. La jerarquía y el sistema urbano de Canarias durante el Antiguo Régimen

    Directory of Open Access Journals (Sweden)

    Pedro C. QUINTANA ANDRÉS

    2009-12-01

    Full Text Available RESUMEN: El organigrama y la jerarquía urbana en las Islas Canarias se encuentran mediatizadas por la estructura económica y el desarrollo de la formación social regional. El fraccionamiento del espacio, la dependencia exterior, la posición geoestratégica internacional o las reiteradas alternativas en la potenciación de diversos productos de exportación fueron los que marcaron, a grandes rasgos, las principales características del sistema urbano canario. La ciudad surge allí donde se asientan los órganos del poder que representan a la Corona, la Iglesia y a la población (Cabildo, Obispado, Real Audiencia, Capitán General, asumiendo gran parte de las funciones demandadas por los vecinos de toda la región. A su vez, una alícuota parte de su población será la que acumule y redistribuya las rentas generadas, beneficiando a esta oligarquía local compuesta por grandes comerciantes extranjeros, hacendados y eclesiásticos que integran el Cabildo Catedral. Palabras clave: Islas Canarias, España, sistema social urbano, oligarquía local, comerciantes extranjeros, Cabildo Catedralicio.ABSTRACT: The chart and the urban hierarchy in the Canary Islands are mediatized by the economic structure and the development of social and regional formation. The division of the space, the external dependence, the geostrategic international position or the reiterated choices, giving the power to different export products, marked to a great extent the main characteristic of the cañarían urban system. The city appears where the différents parts of power are settled so they represent the Crown, the Church and the population (Inter-island Council, Bishopric, County Court, Field Marshal, also this city assumes the majority of functions requested by neighbours from all the regions. At the some time, an aliquot part of population will accumulate and distribute the generated incomes in favour of this local oligarchy constituted by great foreing merchants

  8. Hacia un producto integral: campaña promocional de Canarias durante los JJ.OO. de 1996

    Directory of Open Access Journals (Sweden)

    Lic. María A. Gabino Campos

    2002-01-01

    Full Text Available Los JJ.OO. de Atlanta en 1996 fueron el marco elegido por la Consejería de Turismo y Transporte del Gobierno de Canarias para introducir la marca "Canarias" en EE.UU. La ambiciosa campaña promocional se llevó a cabo desde el 18 de junio al 5 de agosto de 1996, para lo cual se instaló un pabellón promocional en el centro de la ciudad de Atlanta. Asimismo se aprovechó el viaje a Atlanta, para visitar Augusta y vender las islas como un lugar ideal para practicar golf. En esta ocasión, el Gobierno de Canarias vende el archipiélago como una única marca, "Canarias", con siete destinos. A la oferta tradicional de sol y playa se le une la historia, la cultura, la gastronomía, los deportes náuticos, la sanidad e incluso las ventajas fiscales de las islas. Por primera vez, el archipiélago se da a conocer con todas sus peculiaridades.Canarias no sólo realiza una campaña en solitario, fuera de las promociones tradicionales de ferias o impactos publicitarios, en un mercado arriesgado, sino que cambia sus ya experimentadas estrategias en el mercado europeo por una iniciativa novedosa, con el objeto de atraer nuevos inversores turísticos que sondean novedosos destinos y a empresarios en busca de lugares con regímenes fiscales especiales para instalar sus empresas.

  9. JORGE RAMÍREZ ESPINO, PRODUCTOR DE FLORES ARTIFICIALES [Material gráfico

    OpenAIRE

    Suárez García, Carlos Félix

    1980-01-01

    JORGE RAMÍREZ ESPINO, ARTESANO TRADICIONAL DE LAS PALMAS DE GRAN CANARIA DEDICADO A LA PRODUCCIÓN DE FLORES ARTIFICIALES CON TIRAS DE PLATANERA, HOJAS DE DRAGO, CAMISA DE MILLO Y LA PIÑA DE LA FLOR DE LA PLATANERA NACIÓ EN LAS PALMAS DE GRAN CANARIA EN EL AÑO 1942. COMIENZA SU ANDADURA DE MANERA AUTODIDACTA, CONFECCIONANDO FLORES, EN EL AÑO 1992, AL TIEMPO QUE REALIZA COLLARES PARA CABRAS CON ANTONIO PERERA HASTA EL AÑO 1995, EN QUE COMIENZA A VENDER SUS PRIMEROS PRODUCTOS DEL CARA AL PÚBL...

  10. Causes of Stranding and Mortality, and Final Disposition of Loggerhead Sea Turtles (Caretta caretta) Admitted to a Wildlife Rehabilitation Center in Gran Canaria Island, Spain (1998-2014): A Long-Term Retrospective Study.

    Science.gov (United States)

    Orós, Jorge; Montesdeoca, Natalia; Camacho, María; Arencibia, Alberto; Calabuig, Pascual

    2016-01-01

    The aims of this study were to analyze the causes of stranding of 1,860 loggerhead turtles (Caretta caretta) admitted at the Tafira Wildlife Rehabilitation Center in Gran Canaria Island, Spain, from 1998 to 2014, and to analyze the outcomes of the rehabilitation process to allow meaningful auditing of its quality. Primary causes of morbidity were classified into seven categories: entanglement in fishing gear and/or plastics, ingestion of hooks and monofilament lines, trauma, infectious disease, crude oil, other causes, and unknown/undetermined. Final dispositions were calculated as euthanasia (Er), unassisted mortality (Mr), and release (Rr) rates. Time to death (Td) for euthanized and dead turtles, and length of stay for released (Tr) turtles were evaluated. The most frequent causes of morbidity were entanglement in fishing gear and/or plastics (50.81%), unknown/undetermined (20.37%), and ingestion of hooks (11.88%). The final disposition of the 1,634 loggerhead turtles admitted alive were: Er = 3.37%, Mr = 10.34%, and Rr = 86.29%. Er was significantly higher in the trauma category (18.67%) compared to the other causes of admission. The highest Mr was observed for turtles admitted due to trauma (30.67%). The highest Rr was observed in the crude oil (93.87%) and entanglement (92.38%) categories. The median Tr ranged from 12 days (unknown) to 70 days (trauma). This survey is the first large-scale epidemiological study on causes of stranding and mortality of Eastern Atlantic loggerheads and demonstrates that at least 71.72% of turtles stranded due to anthropogenic causes. The high Rr (86.29%) emphasizes the importance of marine rehabilitation centers for conservation purposes. The stratified analysis by causes of admission of the three final disposition rates, and the parameters Td and Tr should be included in the outcome research of the rehabilitation process of sea turtles in order to allow comparative studies between marine rehabilitation centers around the world.

  11. Causes of Stranding and Mortality, and Final Disposition of Loggerhead Sea Turtles (Caretta caretta Admitted to a Wildlife Rehabilitation Center in Gran Canaria Island, Spain (1998-2014: A Long-Term Retrospective Study.

    Directory of Open Access Journals (Sweden)

    Jorge Orós

    Full Text Available The aims of this study were to analyze the causes of stranding of 1,860 loggerhead turtles (Caretta caretta admitted at the Tafira Wildlife Rehabilitation Center in Gran Canaria Island, Spain, from 1998 to 2014, and to analyze the outcomes of the rehabilitation process to allow meaningful auditing of its quality.Primary causes of morbidity were classified into seven categories: entanglement in fishing gear and/or plastics, ingestion of hooks and monofilament lines, trauma, infectious disease, crude oil, other causes, and unknown/undetermined. Final dispositions were calculated as euthanasia (Er, unassisted mortality (Mr, and release (Rr rates. Time to death (Td for euthanized and dead turtles, and length of stay for released (Tr turtles were evaluated.The most frequent causes of morbidity were entanglement in fishing gear and/or plastics (50.81%, unknown/undetermined (20.37%, and ingestion of hooks (11.88%. The final disposition of the 1,634 loggerhead turtles admitted alive were: Er = 3.37%, Mr = 10.34%, and Rr = 86.29%. Er was significantly higher in the trauma category (18.67% compared to the other causes of admission. The highest Mr was observed for turtles admitted due to trauma (30.67%. The highest Rr was observed in the crude oil (93.87% and entanglement (92.38% categories. The median Tr ranged from 12 days (unknown to 70 days (trauma.This survey is the first large-scale epidemiological study on causes of stranding and mortality of Eastern Atlantic loggerheads and demonstrates that at least 71.72% of turtles stranded due to anthropogenic causes. The high Rr (86.29% emphasizes the importance of marine rehabilitation centers for conservation purposes. The stratified analysis by causes of admission of the three final disposition rates, and the parameters Td and Tr should be included in the outcome research of the rehabilitation process of sea turtles in order to allow comparative studies between marine rehabilitation centers around the world.

  12. territorial de la población de Canarias

    Directory of Open Access Journals (Sweden)

    Antonio Álvarez Alonso

    2005-01-01

    Full Text Available Este artículo tiene como objetivo analizar el crecimiento y los desplazamientos experimentados por la población de Canarias durante las dos últimas décadas del siglo XX, período en el que el Archipiélago transformó su modelo de desarrollo económico y demográfico. Durante aquellos años el crecimiento demográfico de Canarias fue del doble de la media española, consecuencia de un proceso de carácter inmigratorio jamás conocido. Tal crecimiento afectó de manera desigual a las islas, habiendo alcanzado alguna de ellas tasas anuales diez veces superiores a la media estatal. Al mismo tiempo, se ha producido también un importante desequilibrio en la distribución espacial de la población, pues han crecido muchos los sures, menos los nortes y se han estancado las áreas metropolitanas. A su vez, se han vaciado demográficamente los núcleos de las medianías de los sures a favor de los litorales, consecuencia del cambio del modelo agropecuario por el turístico.

  13. Análisis de la operación y fiabilidad de los recuperadores de energía comerciales basados en cámaras isobáricas instalados en Canarias y estudio de la adaptación de dichos equipos al régimen de operación variable a diferentes escalas

    OpenAIRE

    Arenas Urrea, Sigrid Yurena

    2015-01-01

    Máster Universitario en Eficiencia Energética (SIANI) [ES]La obtención de agua potable a través de procesos de desalación basados en la ósmosis inversa (OI) es una técnica extendida en las Islas Canarias. Sin embargo la OI requiere de un gran consumo de energía, el cual se puede reducir mediante los sistemas de recuperación de energía, contribuyendo a su vez, a reducir los costes de agua producida por metro cúbico. Es por ello ...

  14. Cuba, Canarias y la prensa, en el contexto del 98

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    Lic. Ileana Medina Hernández

    1998-01-01

    Full Text Available 1898 es para España el año del Desastre, con mayúscula; 1898 es para Cuba el año de la independencia, quizá con minúscula. Canarias es la puerta de salida de Europa; Cuba es puerta la entrada de América. La migración canario - cubana ha sido un factor histórico decisivo en la formación de ambas nacionalidades. La prensa de masas naciente a fines del siglo XIX jugó un papel determinante en la guerra hispano-norteamericana y su desenlace. Conjugando esas cuatro sentencias aplastantes y archiconocidas, la investigación del reflejo del proceso independentista cubano en la prensa de canaria aporta sustanciosos elementos al conocimiento del papel de los procesos de comunicación en la historia y en la cultura de ambos archipiélagos, en el importante contexto del fin de siglo XIX.

  15. Population Structure, Genetic Diversity, and Evolutionary History of Kleinia neriifolia (Asteraceae) on the Canary Islands.

    Science.gov (United States)

    Sun, Ye; Vargas-Mendoza, Carlos F

    2017-01-01

    Kleinia neriifolia Haw. is an endemic species on the Canarian archipelago, this species is widespread in the coastal thicket of all the Canarian islands. In the present study, genetic diversity and population structure of K. neriifolia were investigated using chloroplast gene sequences and nuclear SSR (simple sequence repeat). The differentiation among island populations, the historical demography, and the underlying evolutionary scenarios of this species are further tested based on the genetic data. Chloroplast diversity reveals a strong genetic divergence between eastern islands (Gran Canaria, Fuerteventura, and Lanzarote) and western islands (EI Hierro, La Palma, La Gomera, Tenerife), this west-east genetic divergence may reflect a very beginning of speciation. The evolutionary scenario with highest posterior probabilities suggests Gran Canaria as oldest population with a westward colonization path to Tenerife, La Gomera, La Palma, and EI Hierro, and eastward dispersal path to Lanzarote through Fuerteventura. In the western islands, there is a slight decrease in the effective population size toward areas of recent colonization. However, in the eastern islands, the effective population size increase in Lanzarote relative to Gran Canaria and Fuerteventura. These results further our understanding of the evolution of widespread endemic plants within Canarian archipelago.

  16. Population Structure, Genetic Diversity, and Evolutionary History of Kleinia neriifolia (Asteraceae on the Canary Islands

    Directory of Open Access Journals (Sweden)

    Ye Sun

    2017-06-01

    Full Text Available Kleinia neriifolia Haw. is an endemic species on the Canarian archipelago, this species is widespread in the coastal thicket of all the Canarian islands. In the present study, genetic diversity and population structure of K. neriifolia were investigated using chloroplast gene sequences and nuclear SSR (simple sequence repeat. The differentiation among island populations, the historical demography, and the underlying evolutionary scenarios of this species are further tested based on the genetic data. Chloroplast diversity reveals a strong genetic divergence between eastern islands (Gran Canaria, Fuerteventura, and Lanzarote and western islands (EI Hierro, La Palma, La Gomera, Tenerife, this west–east genetic divergence may reflect a very beginning of speciation. The evolutionary scenario with highest posterior probabilities suggests Gran Canaria as oldest population with a westward colonization path to Tenerife, La Gomera, La Palma, and EI Hierro, and eastward dispersal path to Lanzarote through Fuerteventura. In the western islands, there is a slight decrease in the effective population size toward areas of recent colonization. However, in the eastern islands, the effective population size increase in Lanzarote relative to Gran Canaria and Fuerteventura. These results further our understanding of the evolution of widespread endemic plants within Canarian archipelago.

  17. Canarias triunfante: la plasmación de la imagen a través del mito

    Directory of Open Access Journals (Sweden)

    Jonás Armas Núñez

    2013-01-01

    Full Text Available La obtención de la capitalidad de la Provincia de Canarias por parte de Santa Cruz de Tenerife en el siglo XIX llevó implícita la necesidad de mostrar en la urbe las ideas de poder y progreso. La erección de nuevos edificios representativos y el empuje de la nueva y pujante clase social, la burguesía, crearon en Santa Cruz de Tenerife suntuosos escaparates de la imagen del poder de la capital, entre los que destaca el palacio de la Capitanía General de Canarias, y en especial su singular Salón del Trono.

  18. Presentación de la cohorte "CDC de Canarias": objetivos, diseño y resultados preliminares

    OpenAIRE

    Cabrera de León, Antonio; Rodríguez Pérez, Mª del Cristo; Almeida González, Delia; Domínguez Coello, Santiago; Aguirre Jaime, Armando; Brito Díaz, Buenaventura; González Hernández, Ana; Pérez Méndez, Lina I.

    2008-01-01

    Fundamento: Canarias ocupa el primer lugar de España en mortalidad por cardiopatía isquémica y por diabetes. Sus mujeres son las primeras en mortalidad por cáncer de mama. El "CDC de Canarias" es el estudio de una cohorte de población general para analizar la prevalencia e incidencia de estas enfermedades y la exposición a sus factores de riesgo (FR) en la población adulta del archipiélago. Métodos: Estudio prospectivo con muestreo aleatorio en población general, en el que participaron 6.729 ...

  19. Hispanismos y canarismos en un corpus de textos ingleses sobre Canarias

    Directory of Open Access Journals (Sweden)

    María-Isabel González-Cruz

    2013-12-01

    Full Text Available ResumenLas Islas Canarias (España siempre han mantenido un estrecho contactocon el mundo anglosajón, lo que ha generado importantes consecuencias económicas, así como también socioculturales, lingüísticas y literarias. Un análisis de la bibliografía inglesa sobre Canarias revela, entre otros aspectos, la tendencia al uso de hispanismos y canarismos. Este trabajo ofrece el registro de esas voces que aparecen en un corpus de catorce obras tomadas de la extensa bibliografía anglocanaria. Tras revisar brevemente la relevancia del hispanismo inglés, nuestra recopilación intenta resaltar la contribución del español de Canarias al enriquecimiento del vocabulario de la lengua inglesa, constatando cuáles de los hispanismos de nuestro corpus que son canarismos han pasado al registro lexicográfico realizado por elShorter Oxford English Dictionary on Historical Principles (2007.AbstractThe Canary Islands (Spain have always been in close contact with the Anglo-Saxon world, which has had important consequences for the economy but also at the socio-cultural, linguistic and literary levels. A review of the English bibliography on the Canaries reveals, among other aspects, a tendency in most authors to use hispanicisms and canarianisms in their texts. This article offers a record of those words which appear in a corpus of fourteen works taken from this extensive bibliography. Apart from providing an overview of the studies on hispanicisms in English, this paper’s main aim is to highlight the contribution of Canarian Spanish to the enrichment of the vocabulary of English by checking which of the hispanicisms in our corpus, which are actually canarianisms, have been included in the lexical repertoire of the Shorter Oxford English Dictionaryon Historical Principles (2007.

  20. Crean 'antimateria' en gran cantidad

    CERN Multimedia

    Macedo, C

    2002-01-01

    "Como si se tratara de una historia de ciencia ficcion, un grupo de cientificos del Laboratorio Europeo de Fisica de Particulas (CERN), en Ginebra, anuncio que produjo por primera vez una gran cantidad de antimateria de hidrogeno, lo que representa un gran paso para entender la formacion del Universo" (1 page).

  1. Evolución de la mortalidad atribuible al tabaco en las Islas Canarias (1975-1994

    Directory of Open Access Journals (Sweden)

    Bello Luján Luis M

    2001-01-01

    Full Text Available Fundamento: El objetivo de este trabajo es describir la mortalidad atribuible al consumo de tabaco en las Islas Canarias durante el periodo 1975-1994. Método: Las defunciones por edad, sexo y causa desde 1975 a 1994 se obtuvieron del Instituto Nacional de Estadística (Movimiento Natural Población. A partir de las Encuestas de Salud de España y Canarias se tomaron los porcentajes de nunca fumadores, fumadores y ex-fumadores de la población canaria por edad y sexo. Los riesgos relativos de muerte se obtuvieron del Cancer Prevention Study II, llevado a cabo en Estados Unidos de América. Se calculó la proporción de muertes atribuibles al tabaco para cada año, sexo y grupo de edad a partir de la fracción atribuible poblacional. Así mismo, se calculó la tendencia de la mortalidad atribuible para dicho periodo expresada como el cambio porcentual medio anual de las tasas de la mortalidad ajustadas por edad, mediante un modelo log-lineal. Resultados: Durante el periodo 1975-1994, el número de fallecimientos atribuidos al tabaco aumentó un 64%. Por grandes causas, se observó en el periodo de estudio, un aumento de las neoplasias del 108%, una disminución de las enfermedades cardiovasculares del 32% y un incremento de las enfermedades respiratorias del 15,5%. Se observó también que el número de fallecidos aumenta con la edad, siendo el grupo de edad de 65 años y más en el que se presentan más muertes por el tabaco. Conclusiones: En las Islas Canarias, más del 20% de todas las muertes en 1994 se pueden atribuir al tabaco. Esto sugiere que las medidas introducidas para controlar el tabaquismo son insuficientes.

  2. EVOLUCIÓN DE LA MORTALIDAD ATRIBUIBLE AL TABACO EN LAS ISLAS CANARIAS (1975-1994

    Directory of Open Access Journals (Sweden)

    Luis M Bello Luján

    2001-01-01

    Full Text Available Fundamento: El objetivo de este trabajo es describir la mortalidad atribuible al consumo de tabaco en las Islas Canarias durante el período 1975-1994. Método: Las defunciones por edad, sexo y causa desde 1975 a 1994 se obtuvieron del Instituto Nacional de Estadística (Movimiento Natural Población. A partir de las Encuestas de Salud de España y Canarias se tomaron los porcentajes de nunca fumadores, fumadores y ex-fumadores de la población canaria por edad y sexo. Los riesgos relativos de muerte se obtuvieron del Cancer Prevention Study II, llevado a cabo en Estados Unidos de América. Se calculó la proporción de muertes atribuibles al tabaco para cada año, sexo y grupo de edad a partir de la fracción atribuible poblacional. Así mismo, se calculó la tendencia de la mortalidad atribuible para dicho período expresada como el cambio porcentual medio anual de las tasas de la mortalidad ajustadas por edad, mediante un modelo log-lineal. Resultados: Durante el período 1975-1994, el número de fallecimientos atribuidos al tabaco aumentó un 64%. Por grandes causas, se observó en el período de estudio, un aumento de las neoplasias del 108%, una disminución de las enfermedades cardiovasculares del 32% y un incremento de las enfermedades respiratorias del 15,5%. Se observó también que el número de fallecidos aumenta con la edad, siendo el grupo de edad de 65 años y más en el que se presentan más muertes por el tabaco. Conclusiones: En las Islas Canarias, más del 20% de todas las muertes en 1994 se pueden atribuir al tabaco. Esto sugiere que las medidas introducidas para controlar el tabaquismo son insuficientes.

  3. ESTILO DE VIDA Y ADHERENCIA AL TRATAMIENTO DE LA POBLACIÓN CANARIA CON DIABETES MELLITUS TIPO 2

    OpenAIRE

    Antonio Cabrera de León; José Carlos del Castillo Rodríguez; Santiago Domínguez Coello; María del Cristo Rodríguez Pérez; Buenaventura Brito Díaz; Carlos Borges Álamo; Lourdes Carrillo Fernández; Delia Almeida González; José Juan Alemán Sánchez; Ana González Hernández; Armando Aguirre-Jaime

    2009-01-01

    Fundamento: la población canaria sufre la mayor mortalidad por diabetes tipo 2 (DM2) en España. El objetivo de este estudio es conocer el estilo de vida de las personas diabéticas del archipiélago y su adherencia al tratamiento, así como la DM2 desconocida. Métodos: estudio transversal de 6.729 personas de la población general participantes en la cohorte "CDC de Canarias" (edad 18-75 años). Se obtuvieron sus antecedentes médicos, dieta, actividad física, medicamentos consumidos, tabaco, etc. ...

  4. [Tryggve Gran--the first Norwegian heroic pilot].

    Science.gov (United States)

    Albretsen, C S

    2000-06-30

    Tryggve Gran grew up in an affluent family in Bergen, Norway. The German emperor, William II, often visited the families of his friends. Gran became a good skier, hence well prepared for Robert Scott's second expedition to the Antartic in 1910. Gran deeply regretted the Scott-Amundsen competition, and was cut off from the team heading for the South Pole. In 1913, Gran trained in England and France as an air pilot. On 30 July 1914 he became the first pilot to cross the North Sea from Scotland to Norway. He joined the Royal Air Force in 1916 under the pseudonym of Teddy Grant, passing himself off as a Canadian, and received the Military Cross for distinguished war service. During the Second World War, Gran was a member of Quisling's pro-German National Party. A commemorative stamp was issued in 1944 on the 30th anniversary of his North Sea flight, and a meeting held in his honour with Quisling and German officers present. In this article, the author discusses some psychological aspects of Tryggve Gran's choice of tasks and of his politics. Gran lost his father when he was only five and when he was 11 he was sent off to a pension in Switzerland for a year. Strongly ambivalent feelings from the oedipal period and from the latency may later have been released through hazardous activities, certainly with self-destructive aspects. His membership in Quisling's party might be seen in this context.

  5. Spatial and seasonal patterns of European short-snouted seahorse ...

    African Journals Online (AJOL)

    North-East Atlantic), determining the spatial and seasonal abundance, population structure and physical appearance of European short-snouted seahorse Hippocampus hippocampus. Animals were surveyed off Gran Canaria Island in two ...

  6. Turismo y gestión cultural en las Islas Canarias: apuntes para una reflexión

    Directory of Open Access Journals (Sweden)

    Beatriz Martín de la Rosa

    2003-01-01

    Full Text Available Las Islas Canarias constituyen un claro ejemplo de región que debe su nivel de desarrollo a la actividad turística. La andadura turística se inicia en la década de los sesenta, vinculada al modelo turístico de la época, el turismo de masas asociado a sol y playa (materias primas abundantes. Desde entonces hasta ahora han transcurrido bastantes cambios. En la actualidad intenta complementar su oferta turística ofreciendo turismo rural (por utilizar un nombre genérico y también, aunque menos desarrollado, turismo cultural. Plantear algunas reflexiones sobre el turismo cultural en Canarias, en especial las dificultades derivadas de su gestión, es el objetivo de este artículo

  7. Developments at the Gran Sasso laboratory

    CERN Multimedia

    2003-01-01

    The INFN Laboratory at Gran Sasso is a sanctuary for neutrinos. Located 963 metres over the sea level, it is protected by the 1400 metres of the rock of Gran Sasso mountain, next to the road tunnel of the same name, 120 km from Rome in Italy. It was from this underground location, ideal for receiving a high-energy neutrino beam from CERN, that first sprang the idea for the CNGS (CERN Neutrinos to Gran Sasso) project. However, an accident which occurred in one of the Laboratory's three experimental halls last August resulted in its temporary closure, leaving a question mark over the project's future. Today, following a legal ruling, certain scientific activities are now starting up again. Angelo Scribano, the vice-president of INFN, takes stock of the situation. "After a difficult year, it seems that an air of optimism is back in the INFN laboratories at Gran Sasso. On 17th June 2003, the competent court of the city of Teramo agreed to certain scientific activities starting up again in Hall C as requested b...

  8. Turismo intervención publica en Canarias: transición del modelo cuantitivo al cuaitativo

    Directory of Open Access Journals (Sweden)

    Ramón Diaz Hernandez

    2008-09-01

    Full Text Available Confronté à une surfréquentation touristique, le Gouvernement local des Îles Canaries a publié un Arrêt (4/2001 qui reformule les Orientations Générales du Territoire et du Tourisme. L’objectif est de s’entendre sur les bases d’un modèle de développement insulaire soutenable, en mettant l’accent sur la gestion des ressources naturelles en général et le tourisme plus particulièrement. Cet Arrêt a été accompagné de normes dont l’objectif est de limiter la construction de nouveaux bâtiments hôteliers. Peu après, le Gouvernement a publié l’Arrêt 126/2001 qui limitait le développement touristique. Le Parlement adopta un autre Arrêt, la «Ley de Medidas Urgentes en Materia de Ordenación del Territorio y del Turismo de Canarias » (juillet 2001 qui détermine les conditions exigées aux établissements hôteliers de plus haute catégorie. Le Parlement donne aussi son accord à l’Arrêt 19/2003, «Directrices de Ordenación General y Directrices de Ordenación del Turismo de Canarias ».     Faced with excesses tourism, the local government of the Canary Islands issued a judgement (4 / 2001, which reformulates General Guidelines of Territory and Tourism. The aim is to set up the basis of a model of sustainable island development, with emphasis on natural resource management in general and tourism in particular. This decision was accompanied by standards whose objective is to limit the construction of new buildings for hotels. Shortly thereafter, the Government issued the ruling 126/2001 which limited the development of tourism. Parliament adopted another decree, "Ley de Medidas Urgent en Materia de Ordenación del Territorio y del Turismo de Canarias" (July 2001 which determines the conditions required for hotels higher category. The Parliament also gives its agreement to stop 19/2003, "Directrices de Ordenación General y Directrices de Ordenación del Turismo de Canarias."El desbordamiento ocasionado por el

  9. Hernández Socorro, María de los Reyes: Construcciones de Eva

    Directory of Open Access Journals (Sweden)

    José Javier Azanza López

    2015-01-01

    Full Text Available Resulta difícil resistirse a morder la apetitosa manzana que nos ofrece la inocente a la vez que seductora Eva (1914, Colección Montesdeoca García-Sáenz, Las Palmas de Gran Canaria del pintor tarraconense Julio Moisés y Fernández de Villasante, imagen icónica de la no menos tentadora propuesta concebida por María de los Reyes Hernández Socorro, catedrática de Historia del Arte de la Universidad de Las Palmas de Gran Canaria, que plantea las diversas interpretaciones de algo más de medio centenar de artistas (veinticinco creadoras femeninas y veintisiete creadores masculinos del ámbito canario sobre sus respectivas madres, en el marco cronológico comprendido entre 1846 y 2013.

  10. 2 Hoteles en Almería - Gran Hotel Almería –Alcazaba Gran Hotel

    Directory of Open Access Journals (Sweden)

    Cassinello, F.

    1970-05-01

    Full Text Available This article describes the above two hotels, one of which is a town hotel, namely the «Gran Hotel Almería », and the other a touristic hotel situated near the beach and close to sporting facilities. Both hotels are of 1. A classification, and have been carefully designed; they have basic characteristics that are common to both, but have many secondary features that are specific of each, depending on their emplacement and use.En este artículo se describen dos instalaciones hoteleras: una, de carácter urbano, «Gran Hotel Almería»; otra, eminentemente deportiva y de playa, «Alcazaba Gran Hotel». Ambos edificios son de categoría cuatro estrellas y se han estudiado cuidadosamente, plasmando características básicas y fundamentales comunes, pero con detalles distintivos que las diferencian, en función de su emplazamiento y utilización.

  11. Two new species of the genus Peristenus Foerster (Hymenoptera: Braconidae: Euphorinae) from the Canary Islands

    NARCIS (Netherlands)

    Achterberg, van C.; Guerrero, E.R.

    2003-01-01

    Two new species of the genus Peristenus Foerster (Hymenoptera: Braconidae: Euphorinae) from the Canary Islands are described and illustrated: Peristenus angifemoralis spec. nov. from Tenerife, and P. gloriae spec. nov. from Gran Canaria and Tenerife.

  12. CNGS: Opening the way to Gran Sasso

    CERN Multimedia

    2003-01-01

    The excavation and concreting of the underground structures of the CNGS (CERN Neutrinos to Gran Sasso) project has just been completed. The way to Gran Sasso is now open and, to mark the occasion, we are publishing a special two-part Bulletin report on the CNGS project. The first part, which appears this week, covers the facility which will allow a beam of neutrinos to be sent from CERN to INFN's underground laboratory at Gran Sasso in Italy in 2006. The second part, to appear in next week's issue, will feature the two CNGS experiments, OPERA and ICARUS.

  13. Internet de las cosas y la ingeniería de sistemas: un gran poder conlleva una gran responsabilidad

    OpenAIRE

    Luján Mora, Sergio

    2017-01-01

    Presentación de la conferencia "Internet de las cosas y la ingeniería de sistemas: un gran poder conlleva una gran responsabilidad" impartida en las IV Jornadas Informáticas UTE, celebradas el 15 y 16 de junio de 2017 y organizadas por la Universidad Tecnológica Equinoccial (Quito, Ecuador).

  14. In vitro and in vivo preliminary results on Spirulina platensis for ...

    African Journals Online (AJOL)

    user

    2013-05-01

    May 1, 2013 ... platensis for treatment of impetigo: Topical cream application .... 7.5 g; liquid paraffin 3.75 ml; and aqueous phase: deionized water,. 35 ml; sodium ..... macroalgae from Gran Canaria (Canary Islands, Spain). Int. Microbiol.

  15. Centro internacional para windsurfistas, playa de Vargas, Gran Canaria

    OpenAIRE

    Pérez Sosa, Isacó

    2006-01-01

    El proyecto propone realizar un centro internacional que reúna tanto las instalaciones necesarias para realizar competiciones de windsurf como un albergue, un gimnasio de mantenimiento e instalaciones para otras actividades acuáticas o de ocio complementarias. El edificio se desarrollará en tres construcciones bajas longitudinales que se adaptaran al terreno empotrándose a él y abriéndose hacia el mar. Originando éstas terrazas se sigue la forma común tradicional de asentamiento sobre el ter...

  16. Gran Sasso, laboratorio sigillato

    CERN Multimedia

    Di Giorgio, Claudia

    2003-01-01

    The authorities closed half of the Gran Sasso Centre and the experiments were stopped yesterday after faults were discovered in the security system in one of the three halls of the Laboratory (1 page)

  17. State of emergency declared for Gran Sasso

    CERN Multimedia

    2003-01-01

    "On June 27th the Council of Ministers has declared the state of socioeconomic and environmental emergency in the territory of L'Aquila and Teramo, the provinces involved in the safety of the Gran Sasso system. The measure includes the INFN Gran Sasso National Laboratories, the high-way tunnels, the environment in general and water in particular" (1 page).

  18. The reuse of regenerated water for irrigation of a golf course: evolution geochemistry and probable affection to a volcanic aquifer (Canary Islands); La reutilizacion de aguas regeneradas para riego de un campo de golf: evolucion geoquimica y probable afeccion a un acuifero volconico (Islas Canarias)

    Energy Technology Data Exchange (ETDEWEB)

    Cabrera, M. C.; Palacios, M. P.; Estevez, E.; Cruz, T.; Hernandez-Moreno, J. M.; Fernandez-Vera, J. R.

    2009-07-01

    Irrigation reuse of treated urban wastewater presents unquestionable advantages, but recently some possible unfavourable effects that need to be studied in the long term have been detected. The Bandama golf course, located at the NE of Gran Canaria, has been selected to develop an integrated study of the affection on a medium-long term, due to it has been irrigated with reused water for more than 30 years. The characterization of irrigation water, soil, soil lixiviate and aquifer functioning has allowed to obtain preliminary conclusions pointing to the importance of the soil nature, the precipitation, the irrigation management and the hydrogeologic conditions in the soil and aquifer response, In the study area, this is complicated for the existence of about 250 m thick unsaturated zone conformed by volcanic materials where water must flow through fractures, making impossible to be sampled. (Author) 7 refs.

  19. Arabismos saharianos (alforma, alformaje, alformar) en el español de Canarias

    OpenAIRE

    Frago Gracia, Juan Antonio

    1997-01-01

    Este artículo demuestra que, mientras con más fuerza se mantuvieron las relaciones de toda índole entre Canarias y el África sahariana, las hablas insulares, o al menos algunos de sus usuarios, conocieron el empleo del arabismo alforma junto a sus derivados alformar 'dar salvoconducto, asegurar', alformar 'garante de un salvoconducto o seguro', alformaje 'salvoconducto, seguro'. Este grupo de palabras constituye el puntual reflejo de un capítulo de la historia de los canarios, y por ende de s...

  20. The puzzling case of the accreting millisecond X-ray pulsar IGR J00291+5934: flaring optical emission during quiescence

    Science.gov (United States)

    Baglio, M. C.; Campana, S.; D'Avanzo, P.; Papitto, A.; Burderi, L.; Di Salvo, T.; Muñoz-Darias, T.; Rea, N.; Torres, D. F.

    2017-04-01

    We present an optical (gri) study during quiescence of the accreting millisecond X-ray pulsar IGR J00291+5934 performed with the 10.4 m Gran Telescopio Canarias (GTC) in August 2014. Although the source was in quiescence at the time of our observations, it showed a strong optical flaring activity, more pronounced in bluer filters (I.e. the g-band). After subtracting the flares, we tentatively recovered a sinusoidal modulation at the system orbital period in all bands, even when a significant phase shift with respect to an irradiated star, typical of accreting millisecond X-ray pulsars, was detected. We conclude that the observed flaring could be a manifestation of the presence of an accretion disc in the system. The observed light curve variability could be explained by the presence of a superhump, which might be another proof of the formation of an accretion disc. In particular, the disc at the time of our observations was probably preparing the new outburst of the source, which occurred a few months later, in 2015. Based on observations made with the Gran Telescopio Canarias (GTC), installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, in the island of La Palma.

  1. Creating the tourist product in the opposition between self-actualization and collective consumption

    DEFF Research Database (Denmark)

    Lauring, Jakob

    2013-01-01

    . By use of ethnographic fieldwork methodology, this exploratory study investigated a group of Danish charter tourists traveling to Gran Canaria. Results show that the charter tourists were active in navigating between central dichotomies posed by the consumption of a mass product in an individualized...

  2. Gran Torino

    Directory of Open Access Journals (Sweden)

    Manuel Gárate

    2009-02-01

    Full Text Available Las obra del ex-rudo del cine de los 70’ y 80’ no nos deja de sorprender por su sensibilidad y mirada crítica sobre la sociedad norteamericana actual. Clint Eastwood parece seguir actuando de sí mismo; siempre un duro, pero ya anciano, con achaques, dolores y tantas heridas en el cuerpo y en el alma que sólo cabe esperar su redención ante el indefectible paso del tiempo y los golpes de la vida. “Gran Torino” sigue la ruta trazada de “Million Dollar Baby” (2004 o incluso de aquel inolvidable...

  3. The Genus Theba (Mollusca: Gastropoda: Helicidae), Systematics and Distribution

    NARCIS (Netherlands)

    Gittenberger, E.; Ripken, Th. E.J.

    1987-01-01

    Our knowledge concerning taxonomy and zoogeography of the fossil and recent species of the helicid genus Theba is summarized and enlarged. The fossil T. arinagae spec. nov. is described from Gran Canaria. The recent T. andalusica spec. nov. and T. sacchii spec. nov. are described from the

  4. Ground Breaking for the CERN Neutrinos to Gran Sasso Project

    CERN Document Server

    2000-01-01

    At 11:45 on 12 October, the Director General dug the first earth for the CERN Neutrinos to Gran Sasso Project. Left to right: Professor A. Bettini, Director of the Gran Sasso laboratory, Mme M.-G. Philippe, sous-prefet of Gex, and L. Maiani, Director General of CERN.

  5. Learning Indicators of a Foreign Language in Spanish Public University. Case Study

    Science.gov (United States)

    Cáceres-Lorenzo, M-Teresa; Salas-Pascual, Marcos; Afonzo-de-Tovar, Isabel-Cristina; Vera-Cazorla, M-Jesús; Santana-Alvarado, Yaiza; Santana-Quintana, Cristina

    2017-01-01

    This article investigates 292 postgraduate students of the University of Las Palmas de Gran Canaria (Canary Islands, Spain), through a Likert-scale questionnaire. This inquiry was about private, educational actions and learning valuation of a foreign language and its relation with the learning of one or several foreign languages. The analysis of…

  6. VizieR Online Data Catalog: QSO eHAQ0111+0641 spectra (Fynbo+, 2017)

    Science.gov (United States)

    Fynbo, J. P. U.; Krogager, J.-K.; Heintz, K. E.; Geier, S.; Moller, P.; Noterdaeme, P.; Christensen, L.; Ledoux, C.; Jakobsson, P.

    2017-09-01

    eHAQ0111+0641 was observed with the OSIRIS instrument at the Gran Telescopio Canarias (GTC) as part of a larger sample of candidate red quasars. We secured spectroscopy with OSIRIS and a range of grisms to better constrain the spectral energy distribution, metal lines, and hydrogen Lyα line. (2 data files).

  7. First results from the MACRO experiment at the Gran Sasso Laboratory

    International Nuclear Information System (INIS)

    Giacomelli, G.; Bellotti, R.; Cafagna, F.; Calicchio, M.; De Cataldo, G.; De Marzo, C.; Erriquez, E.; Favuzzi, C.; Giglietto, N.; Nappi, E.; Spinelli, P.; Cechini, S.; Fabbri, M.; Mandrioli, G.; Matteuzzi, P.; Pal, B.; Patrizii, L.; Predieri, F.; Sanzani, G.L.; Serra, P.; Spurio, M.; Sini, G.P.; Togo, V.; Ahlen, S.P.; Ficenec, D.; Hazen, E.; Klein, S.; Levin, D.; Marin, A.; Stone, J.L.; Sulak, L.R.; Worstell, W.; Barish, B.; Coutu, S.; Hong, J.T.; Liu, G.; Peck, C.; Solie, D.; Steele, J.; Lane, C.; Steinberg, R.; Battistoni, G.; Bilokon, H.; Bloise, C.; Campana, P.; Chiarella, V.; Forti, C.; Grillo, A.; Iarocci, E.; Marini, A.; Patera, V.; Reynoldson, J.; Ronga, F.; Satta, L.; Spinetti, M.; Valente, V.; Bower, C.; Heinz, R.; Mufson, S.; Petrakis, J.; Monacelli, P.; Reale, A.; Bernardini, P.; Mancarella, G.; Barbarino, G.C.; Fiore, M.; Baldini, A.; Bemporad, C.; Flaminio, V.; Giannini, G.; Grassi, M.; Pazzi, R.; Auriemma, G.; De Vincenzi, M.; Iori, M.; Lamanna, E.; Lipari, P.; Martellotti, G.; Petrera, S.; Petrillo, L.; Rosa, G.; Sciubba, A.; Severi, M.; Green, P.; Webb, R.; Bisi, V.; Giubellino, P.; Marzari-Chiesa, A.; Masera, M.; Monteno, M.; Ramello, L.

    1991-01-01

    The first physics results obtained with the MACRO detector in the underground Gran Sasso Laboratory are reported. Results were also obtained in conjunction with the EAS-TOP detector located on top of the Gran Sasso mountain. (orig.)

  8. Gran Sasso, laboratori fermi per inquinamento

    CERN Multimedia

    Arachi, Alessandra

    2003-01-01

    An experimental hall at the Gran Sasso laboratory has been closed by the Courts after a river was found contaminated. The institute decided to close all the installations in order to protect the health of citizens (1 page)

  9. El cólera en Canarias (1851: su tratamiento en prensa

    Directory of Open Access Journals (Sweden)

    Lic. Gabriel Díaz Mora

    1998-01-01

    Full Text Available El cólera, también llamado "cólera morbo" -ambos términos se usan en los periódicos estudiados- es una enfermedad aguda y contagiosa, que se manifiesta por superaciones acuosas, retortijones, vómitos, calambres musculares, supresión de la orina y colapso. La causa el bacilo vibrión de Koch cuando infesta el agua potable. Normalmente causa la muerte por convulsiones, colapso y congestión pulmonar.Esta enfermedad se produce principalmente en los trópicos, pero ha aparecido en todas las partes del mundo, llevada por el hombre en sus viajes. Esto ha justificado numerosas veces la cuarentena, como observamos en la epidemia canaria de 1851.

  10. Evaluación de los aportes de nitrógeno y fósforo al medio procedentes del engorde intensivo de pulpo común (Octopus vulgaris Cuvier)

    OpenAIRE

    Mazón Moya, María José

    2006-01-01

    Presentado como requisito parcial para la obtención del Tí­tulo de Máster Universitario Internacional en Acuicultura, otorgado por la Universidad de Las Palmas de Gran Canaria (ULPGC), el Instituto Canario de Ciencias Marinas (ICCM), y el Centro Internacional de Altos Estudios Agronómicos Mediterráneos de Zaragoza (CIHEAM)

  11. Zoological researches in Liberia. A list of Birds, collected by the Author and Mr. F. X. Stampfli during their last sojourn in Liberia

    NARCIS (Netherlands)

    Büttikofer, J.

    1888-01-01

    As I told in my previous paper on Liberian Ornithology ¹), Mr. Stampfli and I left for Liberia at the end of October 1886, and arrived at Monrovia, after short stays at Hamburg, Madeira, Teneriffa, Gran Canaria and the Senegal, on the 26th of November. The next day I proceeded in an open sailing

  12. Mantacaprella macaronensis, a new genus and species of Caprellidae (Crustacea: Amphipoda) from Canary Islands and Cape Verde.

    Science.gov (United States)

    Maite, Vázquez-Luis; José M, Guerra-García; Susana, Carvalho; Lydia Png-Gonzalez

    2013-01-01

    Mantacaprella macaronensis new genus, new species, is described based on specimens collected from Canary Islands and Cape Verde. Mantacaprella is close to the genera Parambus, Pseudolirius, Propodalirius and Paracaprella, but can be distinguished by the combination of the following characteristics: pereopods 3, 4 and 5 two-articulate; pereopods 6 and 7 six-articulate; mandibular molar present and palp absent; male abdomen with a pair of well-developed appendages. The new species has been found living in Cymodocea nodosa meadows and Caulerpa prolifera beds from 8.8 to 14.6 m depth in Gran Canaria (Canary Islands), and in natural rocky and artificial habitats (shipwrecks) at 25 m in Sal Island (Cape Verde). Even though the new species is one of the dominant amphipods inhabiting meadows of Cymodocea nodosa in Gran Canaria and in Cape Verde, it had not been described so far. This reflects the lack of knowledge on Macaronesian invertebrates, such as amphipods, and the need of further taxonomical studies to better characterise the whole biodiversity of this region and to design adequate programmes of management and conservation.

  13. GRAN SASSO: Enriched germanium in action

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1991-12-15

    Two large crystals of carefully enriched germanium, one weighing 1 kilogram and the other 2.9 kilograms, and worth many millions of dollars, are being carefully monitored in the Italian Gran Sasso Laboratory in the continuing search for neutrinoless double beta decay.

  14. GRAN SASSO: Enriched germanium in action

    International Nuclear Information System (INIS)

    Anon.

    1991-01-01

    Two large crystals of carefully enriched germanium, one weighing 1 kilogram and the other 2.9 kilograms, and worth many millions of dollars, are being carefully monitored in the Italian Gran Sasso Laboratory in the continuing search for neutrinoless double beta decay

  15. Edificio de viviendas, locales comerciales y oficinas - Las Palmas, Gran Canaria

    Directory of Open Access Journals (Sweden)

    López Díaz, -

    1979-08-01

    Full Text Available This building stands on a square plot, between party walls, in a narrow old city street. The ground and basement levels are used for commercial spaces, the next levels above for office space and the last three upper levels for apartments, plus a setback penthouse. Each apartment, consisting of living-dining room, services and four double bed-rooms, is layed out lengthwise along a line perpendicular to the Street front, so as to better use the narrow available space, while the natural lighting and ventilation of the inner rooms is achieved by means of numerous shafts distributed throughout the surface. The building features reinforced concrete structure and special concrete panel partitions. The façade combines the same concrete panels, faced with ceramic tiles, with large aluminium windows and artificial, modular shaped, window sills and spandrels.

    En una parcela cuadrada, situada en una estrecha calle de la ciudad, se ha levantado este edificio entre medianerías que destina la planta baja y el sótano a locales comerciales, los dos niveles siguientes a oficinas y a viviendas las tres plantas superiores y el ático retranqueado. Cada vivienda —compuesta por estar-comedor, zona de servicio y cuatro dormitorios dobles— se desarrolla en sentido longitudinal, perpendicularmente a la calle, a fin de aprovechar la escasa fachada del edificio, obteniéndose la iluminación y ventilación naturales de las dependencias interiores mediante pequeños patios diseminados en la superficie. La construcción emplea estructura de hormigón armado y tabiquería constituida por piezas especiales de hormigón. En la fachada se combinan las mismas piezas de hormigón revestidas con plaquetas cerámicas, con grandes ventanales de aluminio y antepechos de piedra artificial de conformación reglada.

  16. Deep Optical Observations of Unusual Neutron Star Calvera with the GTC

    Science.gov (United States)

    Shibanov, Yury; Danilenko, Andrey; Zharikov, Sergey; Shternin, Peter; Zyuzin, Dima

    2016-11-01

    Calvera is an unusual, isolated neutron star with a pure thermal X-ray spectrum typical of central compact objects in supernova remnants. On the other hand, its rotation period and spin-down rate are typical of ordinary rotation-powered pulsars. It was discovered and studied through X-rays, and has not yet been detected in other spectral domains. We present deep optical imaging of the Calvera field, obtained with the Gran Telescopio Canarias, in the g\\prime and I\\prime bands. Within the vicinity of ≈ 1\\prime\\prime of Calvera, we detected two point-like objects that were invisible at previous shallow observations. However, accurate astrometry showed that neither of them can be identified with the pulsar. We put new upper limits of g\\prime \\gt 27.87 and I\\prime \\gt 26.84 on its optical brightness. We also reanalyzed all available archival X-ray data on Calvera. Comparison of the Calvera thermal emission parameters and upper limits on optical and non-thermal X-ray emission with respective data on rotation-powered pulsars shows that Calvera might belong to the class of ordinary middle-aged pulsars, if we assume that its distance is in the range of 1.5-5 kpc. Based on observations made with the Gran Telescopio Canarias (GTC), installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias, on the island of La Palma, program GTC1-14AMEX.

  17. INTERNET Y CONTROL SOCIAL. ENTRE RIZOMA Y GRAN HERMANO

    Directory of Open Access Journals (Sweden)

    Massimo Ragnedda

    2011-01-01

    Full Text Available Gran hermano y rizoma son metáforas cada vez más utilizadas cuando se habla de Internet. En la red estamos continuamente monitorizados: se recogen y catalogan datos e información como si se tratase de un cyberpanopticón: de ahí la metáfora del gran hermano electrónico. La red siente la necesidad de imponer un control cuyo objetivo es uniformar el comportamiento de los usuarios. Pero Internet es, además, una estructura rizomática difícilmente encajable en modelos rígidos. Internet rechaza, por su propia naturaleza, la centralización del poder en beneficio de la autogestión. ¿Cómo pueden coexistir un sistema de vigilancia tipo gran hermano con las características rizomáticas de la red? Estas este artículo se analizan ambas metáforas y se busca una síntesis de ambos conceptos.

  18. Análisis geográfico de las actuales relaciones comerciales entre Canarias y Marruecos / Geographic analysis of commercial relations between the Canary Islands and Morocco

    Directory of Open Access Journals (Sweden)

    Ramón Díaz Hernández

    2014-12-01

    Full Text Available En este trabajo formulamos como hipótesis de partida que Canarias, como frontera meridional de Europa, en un contexto de creciente internacionalización, tiene en los mercados africanos una gran baza histórica que desempeñar. Dado el interés general que este asunto suscita entre las ciencias sociales, se requiere abordarlo desde el análisis geográfico. Para cumplimentar este estudio se emplearon las estadísticas que ofrecen organismos oficiales como el Instituto Nacional de Estadística, Instituto Canario de Estadística, Agencia Estatal de la Administración Tributaria, Instituto de Comercio Exterior y entidades internacionales como la Conferencia de las Naciones Unidas para el Comercio y el Desarrollo (UNCTAD y la Organización Mundial del Comercio (OCM.In this work we formulate the hypothesis that the Canary Islands, as Europe’s southern border, must develop an important role in African markets, in a context of increasing internationalization. Because of the general interest in this issue within the social sciences, to address it from the geographic analysis is required. This study is based, on the one hand, on statistics provided by Spanish government agencies such as the National Statistics Institute, the Canary Institute of Statistics, the State Tax Administration Agency and the Institute of Foreign Trade and, on the other hand, by international entities such as the United Nations Conference for Trade and Development (UNCTAD and the World Trade Organization (WTO.

  19. Determinantes de la demanda de turismo vacacional en las Islas Canarias

    Directory of Open Access Journals (Sweden)

    Santiago Rodríguez Feijoó

    2003-01-01

    Full Text Available En este trabajo se estima una función de demanda de turismo por motivos vacacionales en el destino turístico de las Islas Canarias. El objetivo del estudio es identificar las características relevantes de dicha función y cuantificar sus efectos, no sólo sobre la cantidad demandada (duración de la estancia, sino también sobre los ingresos brutos generados por el turismo, ya que, tanto desde el punto de vista de las empresas que prestan sus servicios en este sector, como de las instituciones públicas encargadas de su planificación y control, la variable que mide los resultados económicos de la actividad es la variable ingresos, más que la propia cantidad de demanda realizada.

  20. Laboratorio Gran Sasso : riprendono le attività

    CERN Multimedia

    2003-01-01

    Tests have begun again in the Gran Sasso Laboratory after it's recent closure due to river contamination : some improvements have been made, such as insulation, and testing of water systems and storage areas (1 paragraph)

  1. El Gran Catharro de 1580 ¿gripe o pertussis?

    Directory of Open Access Journals (Sweden)

    Camaño Puig, Ramón

    2005-12-01

    Full Text Available The gran Catharro (1580 is considered the first influenza epidemic. The analysis of various testimonies of the time may offer some doubts about whether or not it was so; and data strongly support that it was a pertussis epidemic.

    El Gran Catharro (1580 es considerado como la primera epidemia de gripe. El análisis conjunto de los datos contenidos en diferentes testimonios, suscita dudas respecto a que se tratara de una epidemia de gripe y apoyan la posibilidad de que se tratara de una de tos ferina.

  2. Ground breaking for the CERN Neutrinos to Gran Sasso Project

    CERN Multimedia

    Patrice Loïez

    2000-01-01

    Photo 06: Le Directeur général, L. Maiani, a donné le premier coup de pelleteuse pour le projet Neutrinos du CERN vers le Gran Sasso Photo 08 : Le Professeur L. Maiani, aux commandes de la pelleteuse Photo 18 : G.à dr.: Le Professeur A. Bettini, Directeur du Laboratoire Gran Sasso, Mme M.-G. Philippe, sous-prefet de Gex et le Professeur L. Maiani, Directeur général du CERN

  3. Low background Ge spectrometry at Gran Sasso underground laboratories

    International Nuclear Information System (INIS)

    Preusse, W.; Bucci, C.; Arpesella, C.

    1997-01-01

    Under the shelter of 1400 m limestone rock the Gran Sasso underground laboratories in the Apennines (110 km north-east of Rome at a turn-off inside the Gran Sasso motorway tunnel) were designed for running large experiments in the field of neutrino, particle and astrophysics by international collaborations. These experiments have in common the basic requirement to be capable to detect very rare events like e.g. neutrino interactions and double beta decays. Due to this their permanent demands for selecting radiopure materials have led to the equipping of a Ge detector laboratory - at present with 6 large detectors. (orig./DG)

  4. Low background Ge spectrometry at Gran Sasso underground laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Preusse, W [Istituto Nazionale di Fisica Nucleare, Lab. Nazionali del Gran Sasso, Assergi (Italy); Bucci, C [Istituto Nazionale di Fisica Nucleare, Lab. Nazionali del Gran Sasso, Assergi (Italy); Arpesella, C [Istituto Nazionale di Fisica Nucleare, Lab. Nazionali del Gran Sasso, Assergi (Italy)

    1997-03-01

    Under the shelter of 1400 m limestone rock the Gran Sasso underground laboratories in the Apennines (110 km north-east of Rome at a turn-off inside the Gran Sasso motorway tunnel) were designed for running large experiments in the field of neutrino, particle and astrophysics by international collaborations. These experiments have in common the basic requirement to be capable to detect very rare events like e.g. neutrino interactions and double beta decays. Due to this their permanent demands for selecting radiopure materials have led to the equipping of a Ge detector laboratory - at present with 6 large detectors. (orig./DG)

  5. Hydrogeological impact on Gran Sasso tunnels; Impatto idrogeologico delle gallerie autostradali del Gran Sasso

    Energy Technology Data Exchange (ETDEWEB)

    Massoli Novelli, R. [Societa' Italiana di Geologia Ambientale, Rome (Italy); Petitta, M. [Rome Univ., Rome (Italy). Dipt. Scienze della Terra

    2001-07-01

    In 1970-1980 two highway tunnels, 10.150 km long, were bored in the Gran Sasso mountain, at an elevation of 900 m. a.s.l. the tunnels have a rectilinear axis trending SW-NE and they pass about 2 km SE of Corno Grande (2912 m.), the highest peak in the entire Apennines chain. Both tunnels intercepted the regional aquifer in the central part of the massif, with a maximum discharge, during the first year of boring, of about 3m{sup 3}/s. Actually the discharge from the tunnels is about 1,2 m{sup 3}/s on the northern side and about 0,5 m{sup 3}/s on the southern one. Both discharges are mainly used to provide neighbouring towns with drinking water. In 1994 it was begun monitoring monthly the southern springs. The Vera spring data (1994-1996) show a very steady regime and a mean discharge of about 1m{sup 3}/s, considerably less than the pre-tunnels mean discharge value (1,8 m{sup 3}/s). On the contrary, the data about the springs located at an inferior elevation (Tirino Valley) show that tunnels produced on lower springs a minor impact. The impact of rainfall diminishing during recent years is considered. About the third tunnel project to serve the INFN Gran Sasso Laboratory, it must be considered that the new tunnel will be excavated in a dried zone, up the two existent tunnels. Moreover it is necessary to avoid the actual, very dangerous access to the INFN Lab inside one of the highway tunnels. [Italian] Il massiccio del Gran Sasso (Abruzzo) occupa un'area di circa 800 kmq e presenta con il Corno Grande un'altitudine massima di m. 2912. La necessita' di collegare Roma e il versante tirrenico dell'Appennino con il versante Adriatico (Teramo) e' stato assicurato dalla strada statale N. 80 che dall'Aquila conduceva a Teramo, attraverso una serie di dorsali e di vette che descrivono un ampio arco di circa 40 km, in direzine E-W e poi N-S. La strada era soggetta a imponenti nevicate e gelate. Una soluzione poteva essere rappresentata da un

  6. Primeros resultados para la reconstrucción dendroclimática de Canarias

    Directory of Open Access Journals (Sweden)

    Carlos L. Santana Jubells

    2013-11-01

    Full Text Available La aplicación de la Dendrocronología a poblaciones canarias de Pinus canariensis Smith, taxón que hasta el momento no había sido objetivo de esta ciencia, y la obtención de los primeros resultados positivos en la comparación cruzada de series de crecimiento, abren las puertas a una reconstrucción de las variables climáticas precipitación y temperatura del pasado en el Archipiélago. Entre las muchas aplicaciones que es posible derivar de dicha reconstrucción, centra el interés de la Prehistoria el conocimiento, desde una perspectiva diacrónica, de una parte fundamental del entorno ecológico en el que se desarrollan de las poblaciones pehispánicas de Canarias, como vía válida para enriquecer la interpretación de ciertas transformaciones culturales. Los cambios que se operan en la isla de La Palma en el tránsito entre las fases cerámica III y IV, pueden ser interpretados como claro exponente de la intima relación que existe entre el desarrollo de los sistemas culturales y las alteraciones de su marco medioambiental.The application of Dendrochronology to populations of Pinus canariensis Smith from the Canary Islands -species never studied by this science before- and the first positive results in cross-dating of tree-ring series, are achievements that lead to the future reconstruction of the past climatic variables precipitations and temperatures in the Canaries. Among the many applications derived from this climatic reconstruction, the knowledge from a dicahronic perspective if a fundamental piece of the ecological environment in wich the Canarian prehispanic peoples developed will provide Prehistory with a powerful tool to enrich the interpretation of certain cultural phenomena. The changes that took place in La Palma in the transition between the ceramic phases II and IV, can be interpreted as a clear example of the close relationship existing between development of cultural systems and modifications in its environmental frame.

  7. Marrero Regalado y Aguiar: El arte masónico oficial de la Postguerra en Canarias

    Directory of Open Access Journals (Sweden)

    David Martín López

    2008-12-01

    Full Text Available La masonería, como institución filantrópica y bien asentada durante la II República en España, fue totalmente rechazada por Franco desde su Alzamiento de 1936. Sin embargo, la protección oficial de la masonería en Canarias hizo que artistas masones como José Aguiar o como el arquitecto Marrero Regalado pudieran materializar su estética en numerosos proyectos para un nuevo Estado, en el que la concepción masónica del Ser Humano aparece como lenguaje encubierto y subversivo.

  8. LA INNOVACIÓN EDUCATIVA EN ESPAÑA DESDE LA PERSPECTIVA DE GRUPOS DE DISCUSIÓN: EL CASO DE LA COMUNIDAD AUTÓNOMA DE CANARIAS

    Directory of Open Access Journals (Sweden)

    Juan Santiago Arencibia Arencibia

    2010-01-01

    Full Text Available El artículo se enmarca en una investigación llevada a cabo en todas las comunidades de España sobre las características, impacto y problemática de la innovación educativa iniciada desde los propios centros escolares. En el estudio realizado en la Comunidad Canaria, se utilizaron grupos de discusión con representantes de distintos estamentos relacionados con proyectos de innovación escolar. Los participantes reconocen los esfuerzos de la Administración Canaria por simplificar burocráticamente las convocatorias de proyectos de innovación lo que, a su vez, aumenta las posibilidades de que más centros participen. A pesar de ello, el análisis de nuestros participantes deja claro que la selección de líneas prioritarias en las convocatorias no está suficientemente contrastada con la práctica, los tiempos y recursos asignados no son realistas, y la ausencia de unos procedimientos claros de seguimiento y evaluación convierte a la mayor parte de los proyectos en ceremonias poco sostenibles. Así, la Administración puede decir que desembolsa presupuesto en innovación pero no consigue implicar a la mayor parte de los centros y tampoco tiene respuestas acerca de qué resultados se están obteniendo. Existe pues una burocracia de la innovación pero tal vez todavía no haya todavía una política de innovación educativa en Canarias.

  9. Análisis del riesgo volcánico asociado al flujo de lavas en Tenerife (Islas Canarias: escenarios previsibles para una futura erupción en la isla

    Directory of Open Access Journals (Sweden)

    Hansen Machín, A.

    2004-12-01

    Full Text Available The spatial and temporal distribution of volcanic eruptions in the Canarian Archipelago are a consequence of their origin and evolution, in response to hotspot activity. Therefore, the probability that eruptive phenomena will occur is greater in the western islands (Tenerife, La Palma and El Hierro, the closest to the hotspot vertex, where hundreds of eruptions have been localized in the last 20.000 years. By contrast, in La Gomera (presently in the volcanic repose stage and in the easterly islands of Gran Canaria, Fuerteventura and Lanzarote (the most distant and oldest, in the post-erosive stage of development, few eruptions, if any, have taken place during this period. Rift structures known as «dorsals» have been defined in the more active westerly islands, where the greater part of the recent volcanic activity has been concentrated. Objective data therefore exist that permit the assessment and zonification of eruptive hazards in the archipelago. In this work the assessment of volcanic hazards in the island of Tenerife is presented, whichare concentrated in the volcanic system formed by the central edifice of Mt. Teide and the Northwest Rift. Numerous radiometric datings (14C and K/Ar and the preparation of detailed digitalized and georeferenced geological mapping (GIS have permitted an initia1 analysis and assessment of the volcanic hazards in this island, which presents the greatest risk of eruptions because of the number of recent eruptions and their complexity, in addition to demographic density.La distribución en el tiempo y el espacio de las erupciones volcánicas en el Archipiélago Canario es consecuencia de su origen y evolución, como respuesta a la actividad de un punto caliente. Por consiguiente, la probabilidad de ocurrencia de fenómenos eruptivos es mayor en las islas occidentales (Tenerife, La Palma y El Hierro, las más próximas a la vertical del punto caliente, donde se han localizado centenares de erupciones en los

  10. Patient safety against radioelectric emissions internal and external at the Hospital Universitario de Canarias; Seguridad de los pacientes frente a emisiones radioelectricas internas y externas en el Hospital Universitario de Canarias

    Energy Technology Data Exchange (ETDEWEB)

    Febles Santana, V.; Martin Diaz, M. a.; Miguel Bilbao, S. de; Suarez Rodriguez, D. S.; Hernandez Armas, J. A.; Fernandez de Aldecoa, J. C.; Ramos Gonzalez, V.

    2011-07-01

    Electromagnetic fields (EMF) present in a health center, must be known and to be controlled so that your levels are at all times below the limits established by law in the face of patient safety, health personnel and other users. In addition, they may be the source of interference on medical equipment and, consequently, the cause of errors in diagnosis or treatments applied to the sick. This paper presents the results of the measurements made at the Hospital Universitario de Canarias (HUC) EMF levels of radio emissions from the antennas installed in our hospital (Tetra, pagers, and wi-fi) and external emissions from most relevant, either because of their widespread use (mobile phones) or the proximity to the Hospital of the antennas (commercial broadcasters).

  11. Análisis de la nueva Ley de Radio y Televisión Pública de Canarias

    Directory of Open Access Journals (Sweden)

    R Zallo

    2015-04-01

    Full Text Available La nueva Ley de Radio y Televisión Públicas de la Comunidad Autónoma de Canarias (Ley 13/2014, de 26 de diciembre, y que sustituye a la anterior, aparece en un momento delicado para las radiotelevisiones autonómicas, hoy puestas en cuestión desde varios frentes. También se produce como aplicación del doble marco de la Ley General de Comunicación Audiovisual de 2010 y de su modificación por la ley 6/2012, de 1 de agosto y que flexibilizaba los modos de gestión de los canales públicos de televisión. El artículo analiza el aprovechamiento de las oportunidades que ofrecía la Ley General para democratizar el medio –en lo que se ha avanzado significativa pero insuficientemente–, para profundizar en la autogestión de la programación y los contenidos y para encarar los retos de Internet y concluye que la nueva Ley canaria es un avance para el servicio público respecto a los modelos del pasado pero se queda a medio camino del fortalecimiento del servicio público de RTV autonómica en este inicio de era digital. Además de la letra y espíritu del documento final del legislador se aborda su proceso de gestación y de la filosofía que lo impregna mediante el análisis de las enmiendas de los distintos grupos parlamentarios en el curso de su debate.

  12. Gran Sasso National Laboratory: Outreach and communication activities

    Science.gov (United States)

    Antolini, R.; Di Giovanni, A.; Galeota, M.; Sebastiani, S.

    2010-01-01

    Due to its fascinating structures, the Gran Sasso National Laboratory (LNGS) offers huge opportunities for communication and outreach activities conceived for students and general public. A great effort is devoted to the organisation of the "OPEN DAY", in which the scientific staff of Gran Sasso introduces non expert people to the main relevant research topics of the laboratory through interactive demonstrations and particle detectors. In particular, a portable cosmic rays telescope has been realized: the detector is used by LNGS team in pubblic events as well as to promote the scientific activities of the Laboratory. In order to point out the importance of the scientific culture for young people, LNGS is involved in the organisation of several training courses for students and teachers focused on the improvement of the knowledge on modern physics topics. Since May 2008 is operating in Teramo the "Galileium", an interactive museum for physics and astrophysics.

  13. I RAPPORTI TRA L'ALBANIA E LA GRAN BRETAGNA (1940-1950)

    OpenAIRE

    COTA, JULIAN

    2012-01-01

    La presente tesi ha avuto l’obiettivo di illustrare i rapporti tra l’Albania e la Gran Bretagna nel decennio tra il 1940 al 1950. Il lavoro viene svolto basandosi su tre momenti; a) l’ingresso dell’Albania nell’ottica della politica estera della Gran Bretagna e l’invio delle missioni militari britanniche in Albania. b) La fine della Guerra collocò l’Albania dall’altra parte della cortina di ferro rispetto ai britannici causando il peggioramento dei rapporti tra i due governi dopo gli...

  14. DUBNA-GRAN SASSO: Satellite computer link

    International Nuclear Information System (INIS)

    Anon.

    1994-01-01

    In April a 64 kbit/s computer communication link was set up between the Joint Institute for Nuclear Research (JINR), Dubna (Russia) and Gran Sasso (Italy) Laboratories via nearby ground satellite stations using the INTELSAT V satellite. Previously the international community of Dubna's experimentalists and theorists (high energy physics, condensed matter physics, low energy nuclear and neutron physics, accelerator and applied nuclear physics) had no effective computer links with scientific centres worldwide

  15. Shedding ligth on the role of the prokaryotic assemblage in the biogeochemical cycles of the dark ocean

    OpenAIRE

    Baltar, Federico

    2010-01-01

    Memoria de tesis doctoral presentada por Federico Baltar González para obtener el grado de Doctor en Oceanografía por la Universidad de las Palmas de Gran Canaria (ULPGC), bieno (2005-2007), realizada bajo la dirección del Dr. Javier Arístegui Ruiz, del Dr. Gerhard Herndl y del Dr. Josep Maria Gasol Piqué del Institut de Ciències del Mar (ICM-CSIC).-- 317 pares

  16. Patient safety against radioelectric emissions internal and external at the Hospital Universitario de Canarias

    International Nuclear Information System (INIS)

    Febles Santana, V.; Martin Diaz, M. a.; Miguel Bilbao, S. de; Suarez Rodriguez, D. S.; Hernandez Armas, J. A.; Fernandez de Aldecoa, J. C.; Ramos Gonzalez, V.

    2011-01-01

    Electromagnetic fields (EMF) present in a health center, must be known and to be controlled so that your levels are at all times below the limits established by law in the face of patient safety, health personnel and other users. In addition, they may be the source of interference on medical equipment and, consequently, the cause of errors in diagnosis or treatments applied to the sick. This paper presents the results of the measurements made at the Hospital Universitario de Canarias (HUC) EMF levels of radio emissions from the antennas installed in our hospital (Tetra, pagers, and wi-fi) and external emissions from most relevant, either because of their widespread use (mobile phones) or the proximity to the Hospital of the antennas (commercial broadcasters).

  17. GRAN SASSO: Reaching the parts that accelerators cannot reach

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    With most of the current experiments at Italy's Gran Sasso Laboratory now well underway, a workshop held earlier this year looked to the future. Gran Sasso was established in the late 1980s to study low rate processes where the laboratory's 1400 metre rock overburden and low natural radioactivity provide an ideal environment. Since then, it has become a major research centre, hosting several international collaborations. The workshop devoted half a day each to four key areas of underground physics, and clearly showed how the non-accelerator approach complements today's accelerator physics achievements. Solar neutrino physics is one of Gran Sasso's main activities, with the Gallex detector half filling one of the laboratory's three experimental halls. Gallex has already made important measurements of the solar neutrino flux, providing first evidence for the proton-proton fusion mechanism which is the solar powerhouse. The next generation experiment, Borexino, will go one step further, measuring the energy distribution of solar neutrinos as well as their flux. The experiment will also be sensitive to neutrino oscillations through its ability to pick out muon and tau neutrinos. Borexino uses boron instead of gallium as the active medium, and is currently in the trial phase. Benchmarking tests with the counter test facility (CTF) have already demonstrated the experiment's feasibility, paving the way for full scale construction. Further ideas for future detectors based on several different active media were also discussed, and a proposal for a helium TPC detector, HELLAZ, was presented. With a threshold of around 240 keV, comparable to that of Gallex and Borexino, HELLAZ would give another handle on neutrinos from the proton-proton reaction, the most abundant source of solar neutrinos. Neutrinoless double beta decay, dark matter searches, and certain low rate processes in nuclear physics all require the quiet, low radiation surroundings

  18. The Gran Sasso underground laboratories (measurements of rock radioactivity and neutron fluxes)

    International Nuclear Information System (INIS)

    Bellotti, E.; Buraschi, M.; Fiorini, E.; Liguori, C.

    1985-01-01

    The authors report on measurements of rock radioactivity and neutron flux performed in the Gran Sasso underground laboratories of the INFN in Italy. The Gran Sasso' Laboratories of the INFN are located underground, in galleries which have been excavated under the Gran Sasso mountain range. The minimum rock thickness covering the laboratories is about 1400 m of rock of average density 2.8 g cm/sup -3/, corresponding to a thickness of some 4000 m of water equivalent. The laboratories are located at about 1000 m above sea level. The main destination of these laboratories is to shelter very huge particle detectors which shall detect extremely rare nuclear events of extraordinary interest for particle physics as well as for astrophysics and cosmology. In these laboratories, the radiation background is expected to be extremely low, which is the main condition for performing the proposed experiments

  19. Survey of diseases caused by Fusarium spp. on palm trees in the Canary Islands

    Directory of Open Access Journals (Sweden)

    Julio Hernández-Hernández

    2010-05-01

    Full Text Available Between 2006 and 2007, palm trees growing in both gardens and public parks and natural palm groves in the Canary Islands (Spain, and showing symptoms of wilt and dieback, were surveyed. Isolates were recovered from affected tissues of the crowns, leaves and vascular fragments on potato dextrose agar (PDA. After incubation, the Fusarium spp. colonies recovered were single-spored. They were transferred to PDA and Spezieller Nahrstoffarmer Agar (SNA for morphological identification. Identification of Fusarium oxysporum f. sp. Canariensis was confirmed by PCR with the specific primers HK66 and HK67, which amplified a fragment of 567 bp. Fusarium wilt caused by F. oxysporum f. sp. canariensis was found on 54 Phoenix canariensis trees growing on four islands: Gran Canaria, Fuerteventura, La Palma and Tenerife. F. proliferatum occurred on fifteen palms (10 P. canariensis, 1 P. dactylifera, 3 Roystonea regia and 1 Veitchia joannis located in Gran Canaria, Fuerteventura and Tenerife. Both these Fusarium species were found only in diseased palms from gardens and public parks, but not in natural palm groves. The results show that Fusarium wilt of P. canariensis is common in the Canary Islands and for the first time report F. proliferatum affecting different palm species in those islands.

  20. Modulation by steroid hormones of a "sexy" acoustic signal in an Oscine species, the Common Canary Serinus canaria.

    Science.gov (United States)

    Rybak, Fanny; Gahr, Manfred

    2004-06-01

    The respective influence of testosterone and estradiol on the structure of the Common Canary Serinus canaria song was studied by experimentally controlling blood levels of steroid hormones in males and analyzing the consequent effects on acoustic parameters. A detailed acoustic analysis of the songs produced before and after hormonal manipulation revealed that testosterone and estradiol seem to control distinct song parameters independently. The presence of receptors for testosterone and estradiol in the brain neural pathway controlling song production strongly suggests that the observed effects are mediated by a steroid action at the neuronal level.

  1. Gran method for end point anticipation in monosegmented flow titration

    Directory of Open Access Journals (Sweden)

    Aquino Emerson V

    2004-01-01

    Full Text Available An automatic potentiometric monosegmented flow titration procedure based on Gran linearisation approach has been developed. The controlling program can estimate the end point of the titration after the addition of three or four aliquots of titrant. Alternatively, the end point can be determined by the second derivative procedure. In this case, additional volumes of titrant are added until the vicinity of the end point and three points before and after the stoichiometric point are used for end point calculation. The performance of the system was assessed by the determination of chloride in isotonic beverages and parenteral solutions. The system employs a tubular Ag2S/AgCl indicator electrode. A typical titration, performed according to the IUPAC definition, requires only 60 mL of sample and about the same volume of titrant (AgNO3 solution. A complete titration can be carried out in 1 - 5 min. The accuracy and precision (relative standard deviation of ten replicates are 2% and 1% for the Gran and 1% and 0.5% for the Gran/derivative end point determination procedures, respectively. The proposed system reduces the time to perform a titration, ensuring low sample and reagent consumption, and full automatic sampling and titrant addition in a calibration-free titration protocol.

  2. EL MAR DE CANARIAS. DESCRIPCIÓN GEOPOLÍTICA DE UNA SITUACIÓN PROBLEMÁTICA

    Directory of Open Access Journals (Sweden)

    Gilberto Martín Teixé

    2005-12-01

    Full Text Available RESUMEN:El estudio y debate sobre el ordenamientojurídico de las aguas territoriales en las Islas Canarias es tema de permanente actualidad. En el problema inciden la situación geográfica de las islas, el status político administrativo por el que se rigen y la legislación del Derecho Internacional del Mar que se le aplica. La soluciones que se aportan son diversas y comúnmente supeditadas a la visión política que las inspiran. PALABRAS CLAVE:Geopolítica, Islas Canarias, archipiélago, aguas territoriales, aguas interiores, mar territorial, zona económica exclusiva, La Convención del Mar de las Naciones Unidas sobre el Derecho del Mar. ABSTRACT:The research and debate on the Canary Islands territorial waters legal code is always a current affair. Many aspects such as the geographic situation of the islands, the political administrative status and the intemational legislation of the sea to be applied are involved in this problem. The solutions that are offered are numerous and generally subordinated to the political vision that inspire them. KEY WORDS:Geopolitics, Canary Islands, archipelago, territorial waters, internal waters, territorial sea, exclusive economic zone, United Nations Convention on the Law of the Sea (UNCLOS RÉSUMÉ:"L'étude et le débat de l'ordonnance juridique des eaux territoriales aux iles Canaries est un sujet de permanente actualité. Dans le problkme coincident la situation géograp- hique, le status politique-administratif par lequel elles sont régies et la Législation du Droit Intemational de la Mer que l'on lui applique. Les solutions apportées sont différentes et norma- lement soumises a la vision politique qui les inspirent". MOTS CLÉ:Géographie politique, Iles Canaries, archipel, eaux territoriale, eaux intérieures, mer territoriales, zone économique exclusive, La Convention des Nations Unies sur le droit de la Mer. 

  3. El modelo turistico de canarias

    Directory of Open Access Journals (Sweden)

    Josefina Dominguez Mujica

    2010-11-01

    Full Text Available Le développement du tourisme de masses dans les Îles Canaries a commencé au début des années 1960. Le modèle adopté repose sur les mêmes logiques que les aménagements touristiques des littoraux méditerranéens espagnols qui ont abouti à d’intenses processus d’urbanisation. Actuellement, la fréquentation touristique de l’archipel indique la préférence des clientèles de l’Ouest-européen, surtout des allemandes et britanniques. Le tourisme s’est affirmé comme le véritable moteur de l’économie de l’archipel.The development of mass tourism in the Canary Islands started in middle of the 20th century, at the beginning of the 60’s. The adopted model was contemporary and very similar to the model of other coastal areas of the Spanish State, which were affected by an intense urbanization process. Nowadays, the profile of the tourism that visits us shows the preference of Centre-European citizens for this destiny, predominately German and British. As regards the tourist offer, the tour-operators policy, the environmental and patrimonial factors, as well as the institutional and managerial support have been definitive. That’s why this sector has become the motor of the archipelago’s economy.El desarrollo del turismo de masas en Canarias se inició a principios de la década de los años sesenta del siglo XX. El modelo adoptado fue coetáneo y muy semejante al de otras zonas litorales del Estado español, que se vieron afectadas por un intenso proceso de urbanización. Acutalmente, el perfil del turismo que nos visita nos indica la preferencia de los centroeuropeos por este destino, predominantemente, de los alemanes y británicos. En cuanto a la oferta turística, la política de los tour-operadores, los factores medio-ambientales y patrimoniales, así como el apoyo de las instituciones y de los empresarios han sido decisivos. Por ello, este sector se ha convertido en el motor de la economía del Archipiélago.

  4. Successful hand replantation in a seafarer after long-distance helicopter evacuation. A case report.

    Science.gov (United States)

    Fernandez-Palacios, Javier; Duque, Orlando Garcia; Benitez, Ruben Alvarado; Bolanos, Luis Fabelo; Calderin, Jose Guterrez

    2009-01-01

    After sustaining a clean-cut mid-carpal hand amputation on a tanker 120 miles north of Lanzarote, a 28- -year-old seafarer was evacuated by helicopter to a microsurgical unit in Gran Canaria. The amputated hand was cooled according to precise instructions. The 6-hour flight time included two refuelling stops and transfer time. The hand had been revascularized thirteen hours after the accident and was still well circulated at repatriation 3 weeks later.

  5. The GTC Scientific Data Centre

    Science.gov (United States)

    Solano, E.

    2005-12-01

    Since the early stages of the GTC project, the need of a scientific archive was already identified as an important tool for the scientific exploitation of the data. In this work, the conceptual design and the main functionalities of the Scientific Data Archive of the Gran Telescopio Canarias (GSA) are described. The system will be developed, implemented and maintained at the Laboratorio de Astrofísica Espacial y Física Fundamental (LAEFF).

  6. Modulation by steroid hormones of a ''sexy'' acoustic signal in an Oscine species, the Common Canary Serinus canaria

    Directory of Open Access Journals (Sweden)

    Rybak Fanny

    2004-01-01

    Full Text Available The respective influence of testosterone and estradiol on the structure of the Common Canary Serinus canaria song was studied by experimentally controlling blood levels of steroid hormones in males and analyzing the consequent effects on acoustic parameters. A detailed acoustic analysis of the songs produced before and after hormonal manipulation revealed that testosterone and estradiol seem to control distinct song parameters independently. The presence of receptors for testosterone and estradiol in the brain neural pathway controlling song production strongly suggests that the observed effects are mediated by a steroid action at the neuronal level.

  7. Estudios sobre identificación, lactación y cría de dromedarios en la isla de Fuerteventura (Canarias)

    OpenAIRE

    Díaz Medina, Elena

    2017-01-01

    El objetivo de esta Tesis es dar respuesta a una serie de preguntas fundamentales planteadas al intentar poner en marcha una granja de camellas lecheras de raza Canaria en la isla Fuerteventura. Para ello se realizaron 3 experimentos, destinados a: proponer la adecuada identificación (ID) individual de los camellos (Exp. 1), cuantificar la producción y analizar los principales componentes de la leche, así como los niveles de insulina (INS) durante la lactación (Exp. 2), y finalmente estudiar ...

  8. “La posición de la Gran Logia de la Isla de Cuba ante la crisis de 1929 a 1933: su reflejo en la revista La Gran Logia”

    Directory of Open Access Journals (Sweden)

    Haens Beltrán Alonso

    2012-01-01

    Full Text Available La Gran Logia de la Isla de Cuba, principal organismo simbólico de la masonería cubana sufrió durante los años 1929-1933 la grave crisis que afectó a la sociedad cubana. El presente trabajo aborda el posicionamiento de este gobierno masónico ante la situación política, utilizando como fuente fundamental los planteamientos vertidos en su órgano de prensa oficial la revista La Gran Logia. Se parte de la premisa de que la masonería no es una institución política, pero que su funcionamiento la obliga a adoptar una posición ante los problemas que la afectan. ¿Cuál fue la posición de la Gran Logia de la Isla de Cuba sobre la crisis imperante? ¿Cómo expresó su posición sin violar los preceptos masónicos de no discutir sobre política? Estas son las preguntas que en este trabajo se pretenden responder.

  9. Not always sunny in paradise: prices and brand diversity in touristic areas supermarkets

    OpenAIRE

    Campos, Javier (Campos Méndez); Jiménez González, Juan Luis; Suárez-Alemán, Ancor

    2012-01-01

    Using a dataset from consumption patterns in the island of Gran Canaria collected by the authors, this paper attempts to quantify some non-positive effects of tourism on local destination retail markets for goods and services. In particular, we empirically prove, controlling by factors such as population, size of supermarkets or number of competitors, two main effects: first, that supermarkets located in touristic areas charge higher prices than those in non-touristic areas; and second, that ...

  10. Customer value in a B2B setting : An analysis of potential target markets for the rehabilitation company Svenska-Re

    OpenAIRE

    Idenfors, Evelinn; Kjellin, Jennie

    2012-01-01

    This study aims to investigate potential B2B customer segments in Umeå concerning company-wellness and rehabilitation services. We will investigate the market, identify a prospect target market and evaluate this target market on commission from Svenska-Re. The company Svenska-Re offers a service where customers travel to Gran Canaria, Spain, for a three week rehabilitation program. They offer various programs and are specialized in work-related injuries. By evaluating the target market we wil...

  11. Canary Islands (Spain): Their Importance in NATO’s Strategy.

    Science.gov (United States)

    1987-04-22

    considered to be divided into two groups of * islands. One is the eastern islands, made up of Gran Canaria, Lanzarote and Fuerteventura and the other...feet (1,370 to 2,130 meters) and Lanzarote and Fuerteventura, the islands closest to the African coast, do not exceed 2,400 feet (730 meters) in...heights. Each island, except Lanzarote and Fuerteventura, is divided into two faces, one to the north, exposed to the humid winds, full of vegetation

  12. Del “mar es de todos” al mar reservado: turistas, poblaciones de pescadores y reservas marinas en Canarias

    Directory of Open Access Journals (Sweden)

    José J. Pascual

    2003-01-01

    Full Text Available Los patrones de desarrollo de las últimas décadas en Canarias y en otras zonas del Estado han originado nuevos usos del espacio marítimo y litoral. Frente a los tradicionales vinculados a la pesca, ahora dominan frecuentemente los turísticos y recreativos. La naturaleza, construida o recreada, se convierte especialmente en los últimos años en un atractivo clave para muchos destinos. En este contexto, las reservas marinas intentan preservar ciertas zonas de especial valor biológico de los excesos de la pesca, a la vez que deberían conjugar los usos turísticos y recreativos a realizar en tales espacios con la conservación de sus valores naturales. En Canarias han constituido uno de los instrumentos claves de la política de conservación y gestión de pesquerías en las áreas costeras de las Islas. Actualmente hay tres en funcionamiento, siguiendo una tendencia cada vez más general en todo el mundo. Pero a la vez que con ellas se controla la extracción de recursos por los profesionales, se impulsan una serie de usos vinculados a determinadas formas de turismo que han generado importantes transformaciones en las poblaciones vinculadas a estas zonas protegidas. Otros impactos inducidos por el turismo o la acuicultura han alterado también sus estrategias económicas o el uso de los espacios tanto en tierra como en el mar

  13. The Lithium Depletion Boundary and the Age of the Hyades Cluster

    Science.gov (United States)

    Martín, Eduardo L.; Lodieu, Nicolas; Pavlenko, Yakiv; Béjar, Víctor J. S.

    2018-03-01

    Determination of the lithium depletion boundary (LDB), i.e., the observational limit below which the cores of very low-mass objects do not reach high enough temperatures for Li destruction, has been used to obtain ages for several open clusters and stellar associations younger than 200 Myr—which until now has been considered the practical upper limit on the range of applicability of this method. In this work, we show that the LDB method can be extended to significant older ages than previously thought. Intermediate resolution optical spectra of six L-type candidate members in the Hyades cluster obtained using Optical System for Imaging and Low Resolution Integrated Spectroscopy at the 10.4 m Gran Telescopio Canarias are presented. The {Li} {{I}} 670.8 nm resonance doublet is clearly detected only in the two faintest and coolest of these objects, which are classified as L3.5 to L4 brown dwarf (BD) cluster members with luminosities around 10‑4 solar. Lithium depletion factors are estimated for our targets with the aid of synthetic spectra and they are compared with predictions from evolutionary models. An LDB age of 650 ± 70 Myr for the Hyades provides a consistent description of our data using a set of state-of-the-art evolutionary models for BDs calculated by Baraffe et al. Based on data obtained at the Gran Telescopio Canarias.

  14. El comportamiento térmico de la ciudad de Las Palmas de G. C.: La Isla de calor nocturna

    Directory of Open Access Journals (Sweden)

    Lidia Esther Romero Martín

    2013-10-01

    Full Text Available En este trabajo se presentan las principales pautas del comportamiento térmico de la ciudad de Las Palmas de Gran Canaria. Utilizando el método de los recorridos urbanos, durante un año se registraron los datos de temperatura y humedad de 42 puntos de la ciudad, que incluyen áreas formales y funcionales diferentes. Los resultados confirman la existencia de una isla de calor nocturna de carácter bifocal y de intensidad moderada, aunque puede llegar a alcanzar valores de 5.3º C. Su localización está controlada fundamentalmente por la densidad edificatoria y la intensidad del tráfico. El Istmo de la Isleta se comporta como una isla de frescor.In this article, we present the outlines of the thermal behaviour of the city of Las Palmas de Gran Canaria. Using the method of travelling around the city, we recorded temperature and humidity data for 42 sites in the city, including different formal and functional areas. The results confirm that there is a bi-focal and moderate island of nocturnal heat, although it can reach 5.3ºC. This is determined fundamentally by building density and the intensity of the traffic. The Isthmus of La Isleta acts as an island of fresh temperatures.

  15. EL HÁNDICAP DEL TRANSPORTE AÉREO PARA EL DESARROLLO INICIAL DEL TURISMO DE MASAS EN LAS ISLAS CANARIAS

    Directory of Open Access Journals (Sweden)

    José Ángel Hernández Luis

    2011-01-01

    Full Text Available El transporte aéreo, más aún en un territorio fragmentado y alejado como es el caso del Archipiélago canario, ha jugado un papel trascendental para el desarrollo del turismo de masas en los años sesenta y setenta. En efecto, sin la llegada del motor a reacción a Canarias, no se podría comprender el espectacular desarrollo turístico que las Islas experimentaron en este periodo, siendo el principal objetivo de este trabajo, abordar -aunque de forma sucinta-, este proceso absolutamente decisivo para las Islas.

  16. A new proton spill from CERN to Gran Sasso

    CERN Document Server

    CERN Bulletin

    2011-01-01

    Since 21 October, CERN has been sending a new type of neutrino beam to Gran Sasso. The new configuration is intended to allow the experiments to define the departure time of the neutrinos more accurately and thus check the previous results obtained using the nominal beam configuration.   The CERN Neutrino to Gran Sasso (CNGS) beam no longer operates using the standard beam time structure. Instead, a new type of proton pulse is being produced by CERN’s accelerators and sent to the graphite target to generate neutrinos. “We are now producing extremely short beam pulses,” explains Edda Gschwendtner, the physicist in charge of the CNGS secondary beam. “During a CNGS cycle we now have a LHC type bunched beam with four bunches, each about 2 ns long. Each bunch contains more than 2.5 x 1011 protons; bunches are spaced by 500 ns. In total, this makes about 1012 protons on target for each extraction from the SPS.” The CNGS beam was originally designed to m...

  17. Efecto de la Artemia enriquecida con distintas emulsiones comerciales sobre el crecimiento y desarrollo esquelético de larvas de lenguado senegalés (Solea senegalensis Kaup, 1858)

    OpenAIRE

    Özcan, Filiz

    2010-01-01

    Máster Oficial en Cultivos Marinos. VI Máster Internacional en Acuicultura. Trabajo presentado como requisito parcial para la obtención del Título de Máster Oficial en Cultivos Marinos, otorgado por la Universidad de Las Palmas de Gran Canaria (ULPGC), el Instituto Canario de Ciencias Marinas (ICCM), y el Centro Internacional de Altos Estudios Agronómicos Mediterráneos de Zaragoza (CIHEAM) Las malformaciones esqueléticas y problemas pigmentarios son uno de los mayores problemas de la pr...

  18. Theoretical considerations and a simple method for measuring alkalinity and acidity in low-pH waters by gran titration

    Science.gov (United States)

    Barringer, J.L.; Johnsson, P.A.

    1996-01-01

    Titrations for alkalinity and acidity using the technique described by Gran (1952, Determination of the equivalence point in potentiometric titrations, Part II: The Analyst, v. 77, p. 661-671) have been employed in the analysis of low-pH natural waters. This report includes a synopsis of the theory and calculations associated with Gran's technique and presents a simple and inexpensive method for performing alkalinity and acidity determinations. However, potential sources of error introduced by the chemical character of some waters may limit the utility of Gran's technique. Therefore, the cost- and time-efficient method for performing alkalinity and acidity determinations described in this report is useful for exploring the suitability of Gran's technique in studies of water chemistry.

  19. Gran Colombia黄金公司三季度黄金产量公布

    Institute of Scientific and Technical Information of China (English)

    2016-01-01

    Gran Colombia黄金公司(Gran Colombia Gold Corp.)日前发布报告显示,2016年3季度公司生产黄金39,111盎司(约合1.22吨),同比增长14%;2016年1-3季度公司累计生产黄金108,829盎司(约合3.38吨),

  20. [Presentation of the "CDC de Canarias" cohort: objectives, design and preliminary results].

    Science.gov (United States)

    Cabrera de León, Antonio; Rodríguez Pérez, Ma del Cristo; Almeida González, Delia; Domínguez Coello, Santiago; Aguirre Jaime, Armando; Brito Díaz, Buenaventura; González Hernández, Ana; Pérez Méndez, Lina I

    2008-01-01

    The Canary Islands rank first in Spain with respect to the ischaemic heart disease and diabetes mortality rates. The Islands female population leads the country in deaths from breast cancer. The "CDC de Canarias" is a general population cohort study in order to analyse the prevalence and incidence of these diseases and the exposure to their risk factors (RF) in the adult population of the archipelago. Prospective study with a random sampling of the general population, in which 6,729 individuals participated between 2000 and 2005 (aged 18-75). Anthropometric measurements were taken, and blood was drawn for the storage of serum and genetic samples. The following information was gathered through a questionnaire: eating habits, physical activity, personal and family medical history, exposure to occupational or environmental risk factors, smoking, etc. The prevalence of obesity is close to 30%, without differences between sexes, however, more male subjects were overweight than women (45 vs. 33%; p high blood pressure (43 vs. 33%; p high prevalence of exposure to risk factors for cardiovascular disease, diabetes and cancer, among which overweight, obesity and lack of exercise stand out particularly.

  1. Gran minería y conflictos socioambientales : el caso del distrito de Espinar, Cusco

    OpenAIRE

    Huamaní Paccaya, Wilber

    2015-01-01

    Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Ecología Aplicada Uno de los problemas que enfrenta Espinar es la presencia de conflictos relacionados con la actividad expansiva de la gran minería. El objetivo de este estudio fue conocer y determinar las causas-implicancias y las relaciones de los conflictos socio-ambientales de la gran minería en Espinar (1980- 2013). Para ello, primero se recopiló información sobre la historia de la minería, se identificó y se ca...

  2. Modernidad y posmodernidad en El gran señor de Enrique Rosas Paravicino

    Directory of Open Access Journals (Sweden)

    Miguel Arribasplata Cabanillas

    2015-07-01

    Full Text Available En la novela El Gran Señor de Enrique Rosas Paravicino hay una confluencia de pasado histórico y presente conflictivo, donde el fervor religioso cumple un papel de nucleo integrador. En la sociedad andina ficcionalizada aparece una novedosa galería de tipos sociales, como corresponde a un país, como Perú, en pugna por integrar la modernidad con la tradición cultural. Los Andes se constituyen en el gran escenario de una épica popular, con todo el colorido de sus gentes y el paisaje de su cultura. Todo se mueve en torno a un rasgo que es predominante en la novela: el desplazamiento humano en torno a una devoción en plena Cordillera Oriental: el Cristo de la Nieve Resplandeciente. Aquí el sincretismo religioso da lugar a la presencia de personajes involucrados en el mito, la magia y la tradición oral, a la par que asoman los cambios sociales y políticos impulsados por otros actores embarcados en proyectos mundanos, acordes con ese otro gran mito: el progreso colectivo, en perspectiva al desarrollo nacional.

  3. Analysis of the Gran Desierto, Pinacte Region, Sonora, Mexico, via shuttle imaging radar

    Science.gov (United States)

    Greeley, R.; Christensen, P. R.; Mchone, J. F.; Asmerom, Y.; Zimbelman, J. R.

    1984-01-01

    The radar discriminability of geolian features and their geological setting as imaged by the SIR-A experiment is examined. The Gran Desierto and Pincate volcanio field of Sonora, Mexico was used to analyze the radar characteristics of the interplay of aeolian features and volcano terrain. The area in the Gran Desierto covers 4000 sq. km. and contains sand dunes of several forms. The Pincate volcanio field covers more than 2.000 sq. km. and consists primarily of basaltic lavas. Margins of the field, especially on the western and northern sides, include several maar and maar-like craters; thus obtaining information on their radar characteristics for comparison with impact craters.

  4. Contribution to Risk Analysis of a Standard Brewery: Application of a Hygiene Assessment System Survey

    OpenAIRE

    Raposo, António; Salazar, Jairo; Pérez, Esteban; Sanjuán, Esther; Carrascosa, Conrado; Saavedra, Pedro; Millán, Rafael

    2013-01-01

    "Beer is a food product with a high consumption in Gran Canaria and the brewery industry is also present in this island. In order to carry out this study, it was designed a survey to assist in the assessment of risks from the facilities and infrastructures of the brewery, the raw materials used in the beer production and the HACCP (Hazard Analysis and Critical Control Points) plan. An initial assessment of various aspects of the industry has been conducted at the beginning of hygienic-sani...

  5. Beaked Whale Strandings and Naval Exercises

    Science.gov (United States)

    2009-01-01

    varamiento de cetá- ceos–Viceconsejería de Medio Ambiente . Gran Canaria: Government of the Canary Islands. Retrieved 30 November 2009 from www.gobcan.es...Department of the Navy (U.S. DoN). (2002a). Marine resources assessment for the Gulf of Mexico operating area. Prepared by Geo-Marine, Inc., Plano, TX...and Heritageb 1 June 1986 Zc, Me 5 Spain (Canary Islands) 4 Vonk & Martín Martel, 1988d 2 July 1986 Bb 7 Mexico 4 Aurioles-Gamboa, 1992d 29-31 Aug 1986

  6. La desamortización en la institución parroquial. La Parroquia de San Sebastian, Villa de Agüimes. Siglos XVI-XIX

    Directory of Open Access Journals (Sweden)

    Candelaria Castro Pérez

    2016-12-01

    Evidenciándose una interconexión entre la Iglesia y el Estado y consecuentemente un acercamiento entre la Contabilidad Privada y la Contabilidad Pública. Con el propósito de analizar el efecto de estas medidas, tomadas por el Estado para desmantelar la economía eclesiástica, estudiamos los registros contables (Cuentas de fábrica pertenecientes a la parroquia de San Sebastián en la Villa de Agüimes, en la isla de Gran Canaria, durante los siglos XVI-XIX.

  7. Quality of life and type 1 diabetes: a study assessing patients’ perceptions and self-management needs

    Directory of Open Access Journals (Sweden)

    Alvarado-Martel D

    2015-09-01

    Full Text Available Dácil Alvarado-Martel,1,2 Rebeca Velasco,1 Rosa M Sánchez-Hernández,1,2 Armando Carrillo,1,2 Francisco Javier Nóvoa,1,2 Ana María Wägner1,2 1Servicio de Endocrinología y Nutrición, Complejo Hospitalario Universitario Insular Materno-Infantil de Gran Canaria, 2Instituto Universitario de Investigaciones Biomédicas y Sanitarias, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain Purpose: The main objective of this study was to assess quality of life (QoL and treatment satisfaction in a group of patients with type 1 diabetes (T1D and explore their needs regarding and their perception of QoL living with diabetes.Materials and methods: Patients with type 1 diabetes attending the outpatient endocrinology clinics of a reference hospital were invited to participate in a cross-sectional study. Clinical and sociodemographic data were obtained (interview and clinical records, and diabetes-related QoL was assessed using a standardized questionnaire. In 67 participants, satisfaction with treatment was also assessed, and an open interview was performed, assessing the impact of diabetes, long-term worries, flexibility, restrictions, and self-perception of QoL. Descriptive statistical analysis, bivariate analysis, and multivariate analysis were performed in order to find factors associated with QoL. Interviews were analyzed and summarized questionwise.Results: Mean patient age was 31.4±11.6 years, diabetes duration 14.2±9.3 years, and glycated hemoglobin (HbA1c 8.5%±1.9% (69±20.8 mmol/mol International Federation of Clinical Chemistry [IFCC]. The questionnaires showed good average QoL scores (94.6+22.9 and treatment satisfaction scores (25.7±6.7. QoL worsened with increasing HbA1c, female sex, severity of complications, and lower education (r2=0.283, P<0.005. In the open interview, 68.5% of the patients reported that diabetes had changed their lives, 83.5% identified complications as their most important long

  8. Chronology of the cave interior sediments at Gran Dolina archaeological site, Atapuerca (Spain)

    Science.gov (United States)

    Parés, J. M.; Álvarez, C.; Sier, M.; Moreno, D.; Duval, M.; Woodhead, J. D.; Ortega, A. I.; Campaña, I.; Rosell, J.; Bermúdez de Castro, J. M.; Carbonell, E.

    2018-04-01

    The so-called "Gran Dolina site" (Atapuerca mountain range, N Spain) is a karstic cavity filled by sediments during the Pleistocene, some of which contain a rich ensemble of archaeological and paleontological records. These sediments have contributed significantly to our understanding of early human dispersal in Europe but, in contrast, older, interior facies deposits have received much less of attention. The stratigraphy of Gran Dolina reveals an abrupt sedimentary change of interior to entrance facies from bottom to top, reflecting a significant paleoenvironmental change that promoted the accumulation of sediments transported from the vicinity of the cave by water or "en masse". Since the major magnetic polarity reversal known as the Matuyama-Brunhes boundary (0.78 Ma) was detected within the TD7 unit in the middle of the stratigraphic section, we carried out a new combined paleomagnetic, radiometric (U-Pb), and electron spin resonance (ESR) dating study of the lower part of the sequence in order to constrain the chronology of the interior facies at Gran Dolina. U-Pb analysis of speleothems did not produce age information as the samples proved to be extremely unradiogenic. The magnetic stratigraphy of the cave interior sediments reveals a dominant reverse magnetic polarity, coherent with a Matuyama age, and interrupted by a normal polarity magnetozone interpreted as the Jaramillo Subchron (1.0-1.1 Ma). ESR ages on quartz grains from the upper part of the interior facies sediments are coherent with such an interpretation. We conclude that the fluvial deposits (interior facies) that constitute the cave floor began accumulating before 1.2 Ma. The development of large cave entrances at Gran Dolina occurred shortly after the Jaramillo Subchron but before ca 900 ka ago.

  9. Distribution and importance of the family anacardiaceae timber in The Gran Chaco of Argentina

    Directory of Open Access Journals (Sweden)

    Claudia Verónica Luna

    2012-09-01

    Full Text Available The Gran Chaco is the second green support continent presents an alarming loss of biodiversity, on the other hand, the short-termconservation of such valuable species as are the representatives of the family Anacardiaceae, are uncertain, in spite be invaluable participation in native forest ecosystems, lack of resource management for years has put at risk many species, moving to integrate the IUCN Red List (International Union for Conservation of Nature. This work, through an extensive literature review, aims to reassess the use and importance of the Anacardiaceae family components that are widely distributed in the Gran Chaco Argentino.

  10. La Gran Colombia de la Gran Bretaña: la importancia del lugar en la producción de imágenes nacionales, 1819 - 1830

    Directory of Open Access Journals (Sweden)

    Lina del Castillo

    2010-01-01

    Full Text Available Este ensayo examina el caso de las imágenes producidas sobre la Gran Colombia (1819-1830 en Londres como parte de los esfuerzos por ganar reconocimiento para la nueva república en el exterior. Demuestra cómo los deseos territoriales y políticos de los líderes pro-independentistas (que a su vez no estuvieron de acuerdo en cuanto a qué forma debería tener la república en la práctica fueron además restringidos por los intereses imperiales de la Gran Bretaña. Por lo tanto, la geopolítica y los intereses diplomáticos jugaron un papel primordial a la hora de determinar la manera como se representó la extensión de la Gran Colombia durante este periodo en Londres. El considerar los materiales visuales y geográficos producidos dentro de este complejo contexto transnacional nos ayudará a entender aspectos poco examinados por los estudiosos de la historia de la ciencia y de la cultura visual sobre América a principios del siglo XIX. Al resaltar cuán complejas y provisionales fueron aquellas imágenes, el ensayo esclarece las negociaciones domésticas e internacionales que se dieron en torno a lo que debería significar una República de Colombia. Menos importante fue el codificar la república cartográficamente como un país Independiente, de y para ciudadanos, que el crear un territorio civilizado, unificado políticamente, y rico en recursos minerales de cara a los poderes imperiales internacionales que, durante este periodo, estaban en pleno proceso de reconfiguración de sus ámbitos de influencia y dominio.

  11. El campus virtual como recurso útil: un estudio de estudiantes universitarios de carreras humanísticas [The virtual learning platform as a useful resource: a research among university students of humanistic degrees

    Directory of Open Access Journals (Sweden)

    Carmen Luján-García

    2012-06-01

    Full Text Available Resumen:Este artículo, realizado con estudiantes universitarios de dos carreras humanísticas en la Universidad de Las Palmas de Gran Canaria: Filología Inglesa y Geografía, investiga el grado de familiaridad y utilidad del campus virtual en el mundo académico. Los resultados demuestran que es una herramienta útil, aunque percibida más como un apoyo a la enseñanza presencial que con validez en sí misma. La variable género revela que los hombres valoran mejor esta herramienta, mientras que los informantes de geografía perciben más positivamente el campus virtual que los de filología inglesa. Abstract:This paper presents the results of a study carried out among undergraduate students of English Language and Literature and Geography at the University of Las Palmas de Gran Canaria to investigate their degree of familiarity with and the general usefulness of the virtual learning platform in Higher Education. The results show that whilst this is indeed a useful tool, it is used to best effect when seen as a supportive resource for regular education. The variation in responses from men and women reveals that men are more familiar with and value this tool more highly than women. It was also found that the Geography Undergraduates have a more positive view of virtual learning platforms than English Language and Literature Undergraduates.

  12. Many missing rings in old Canary pines can be related with age, fires and traditional uses

    Energy Technology Data Exchange (ETDEWEB)

    Génova, M.; Santana, C.; Martínez, B.

    2017-11-01

    Aim and area of study: In the present paper we estimated the age of four monumental Pinus canariensis of Gran Canaria (Canary Islands, Spain) by means of tree-ring analysis. Many tree-ring series have been accurately studied and many missing rings have been determined. Material and methods: The trees were dead and the samples analysed were big disks. We measured numerous radii and crossdated the individual tree-ring series, paying particular attention to the existence and location of missing rings. We have distinguished between missing outer rings (MORs) and missing inner rings (MIRs) and analysed the possible causes of both. Main results: We determined an average of 8.8% total missing rings (MRs) for these long-lived trees, with a maximum of 96 MRs in a series of over 500. We have tried to establish a tree-ring chronology on Gran Canaria Island, also having the tree-ring series from Inagua site, but the long individual tree-ring series analysed do not crossdate between them. Research highlights: We consider the Canary pine a species hard to conducting dendroecological studies, especially if the samples come from managed old trees, in which a large amount of known and potentially unknown missing rings can hampered dating. Even knowing the difficulties involved in dendrochronological analyses of P. canariensis, we can confirm that it is a long-lived species, which can grow to over 500 years, and some of whose growth changes could be associated with certain historical and ecological events.

  13. Many missing rings in old Canary pines can be related with age, fires and traditional uses

    International Nuclear Information System (INIS)

    Génova, M.; Santana, C.; Martínez, B.

    2017-01-01

    Aim and area of study: In the present paper we estimated the age of four monumental Pinus canariensis of Gran Canaria (Canary Islands, Spain) by means of tree-ring analysis. Many tree-ring series have been accurately studied and many missing rings have been determined. Material and methods: The trees were dead and the samples analysed were big disks. We measured numerous radii and crossdated the individual tree-ring series, paying particular attention to the existence and location of missing rings. We have distinguished between missing outer rings (MORs) and missing inner rings (MIRs) and analysed the possible causes of both. Main results: We determined an average of 8.8% total missing rings (MRs) for these long-lived trees, with a maximum of 96 MRs in a series of over 500. We have tried to establish a tree-ring chronology on Gran Canaria Island, also having the tree-ring series from Inagua site, but the long individual tree-ring series analysed do not crossdate between them. Research highlights: We consider the Canary pine a species hard to conducting dendroecological studies, especially if the samples come from managed old trees, in which a large amount of known and potentially unknown missing rings can hampered dating. Even knowing the difficulties involved in dendrochronological analyses of P. canariensis, we can confirm that it is a long-lived species, which can grow to over 500 years, and some of whose growth changes could be associated with certain historical and ecological events

  14. Origin and status of the Gran Sasso INFN Laboratory

    Science.gov (United States)

    Votano, Lucia

    2014-11-01

    The Gran Sasso National Laboratory of INFN (LNGS) is the largest underground laboratory for astroparticle physics in the world. Located in Italy between the cities of L'Aquila and Teramo, 120 km far from Rome, is a research infrastructure mainly dedicated to astroparticle and neutrino physics. It offers the most advanced underground facility in terms of dimensions, complexity and completeness of its infrastructures. LNGS is one of the four national laboratories run by the Istituto Nazionale di Fisica Nucleare (INFN). The scientific program at LNGS is mainly focused on astroparticle, particle and nuclear physics. The laboratory presently hosts many experiments as well as R&D activities, including world-leading research in the fields of solar neutrinos, accelerator neutrinos (CNGS neutrino beam from CERN to Gran Sasso), dark matter (DM), neutrinoless double beta decay (2β0ν) and nuclear cross-section of astrophysical interest. Associate sciences like earth physics, biology and fundamental physics complement the activities. The laboratory is operated as an international science facility and hosts experiments whose scientific merit is assessed by an international advisory Scientific Committee. A review of the main experiments carried out at LNGS will be given, together with the most recent and relevant scientific results achieved.

  15. Lessons after 3 years of running GENIUS-TF in Gran Sasso

    Energy Technology Data Exchange (ETDEWEB)

    Krivosheina, I V; Klapdor-Kleingrothaus, H V [Max-Planck-Institut fuer Kernphysik, PO 10 39 80, D-69029 Heidelberg (Germany)

    2006-10-01

    After operation of GENIUS-TF over 3 years with finally six naked Ge detectors (15 kg) in liquid nitrogen in Gran Sasso, we realize serious problems for realization of a full-size GENIUS-like experiment: (i) background from {sup 222}Rn diffusing into the setup, on a level far beyond the expectation. (ii) Limited long-term stability of naked detectors in liquid nitrogen. None of the six detectors is running after 3 years with the nominal high voltage. Three of the six detectors do not work at all any more. The HDMS (Heidelberg Dark Matter Search) setup at LNGS, operates the first enriched {sup 73}Ge detector worldwide, and looks for spin-dependent WIMP-nucleon coupling at the Gran Sasso Underground Laboratory. The results (85.48 kg d) improve the best present existing limits on the WIMP-neutron spin-dependent cross-section (obtained from {sup 129}Xe) for low WIMP masses (Klapdor-Kleingrothaus et al 2005 Phys. Lett. B 609 226-31)

  16. El mayordomo y la contabilidad parroquial. Control y rendición de cuentas. Villa de Agüimes 1730-1830

    Directory of Open Access Journals (Sweden)

    Mercedes Calvo Cruz

    2006-12-01

    A través del estudio de una figura de gran relevancia desde el punto de vista económico-contable en la institución parroquial, como es el mayordomo, se persigue contribuir al enriquecimiento de la historia de la contabilidad en el terreno eclesiástico. Para ello en el presente trabajo pretendemos poner de manifiesto las funciones del mayordomo parroquial y sus implicaciones económico-contables, a través del análisis de los libros de cuentas y otra documentación contable, así como de los libros de Quentas de Fabrica que debía presentar el citado mayordomo al obispo o visitador general en las visitas que realizaba a las parroquias, tomando como ejemplo la parroquia de la Villa de Agüimes, en la isla de Gran Canaria, durante el periodo 1730-1830.

  17. Selección del alimento en la hormiga argentina, Linepithema humile (Mayr, 1868) Hymenoptera, Formicidae)

    OpenAIRE

    Valles-Ibáñez, Guillem de

    2009-01-01

    Asignatura: Etología de los recursos pesqueros (Licenciatura Ciencias del Mar) La hormiga argentina Linepithema humile cambia la composición relativa de carbohidratos y proteínas en su dieta en función de la estación del año. Se demuestra cómo en Gran Canaria, durante el nvierno, las obreras prefieren los alimentos ricos en carbohidratos frente a alimentos ricos en proteínas o mixtos. ABSTRACT The Argentine ant Linepithema humile changes the relative composition of carbohydrates and pro...

  18. Islas dentro de islas: biología y conservación del paleoendemismo macaronésico Navaea phoenicea (Vent) Webb & Berthel

    OpenAIRE

    González Fernández de Castro, Alejandro

    2016-01-01

    Tesis Doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Biología. Fecha de lectura: 12 de enero de 2016 Esta tesis doctoral estudia los rasgos de la historia natural de una especie emblemática de la flora canaria, Navaea phoenicea (Vent.) Webb & Berthel. (Malvaceae), en un contexto ecológico y evolutivo insular. Esta especie presenta una serie de rasgos de su historia natural de gran interés científico: por un lado, se trata de un endemismo ...

  19. Conservación del Patrimonio Industrial. Un plan estratégico

    OpenAIRE

    Sentana Gadea, Irene; Tomás Jover, Roberto; Díaz Ivorra, María del Carmen; Elvira Cruañes, María Teresa

    2002-01-01

    Comunicación presentada en el Congreso de Patrimonio Industrial y de la Obra Pública e Historia de la Ingeniería, Las Palmas de Gran Canaria, 5-7 junio 2002 Se trata de mostrar el plan estratégico que se llevó a cabo para conservar el patrimonio constructivo de un edificio de carácter histórico que estuvo a punto de desaparecer, con el fin de mostrar las acciones que se emprendieron y los resultados conseguidos en el objetivo propuesto, su conservación.

  20. Optical Observations of Psr J2021+3651 in the Dragonfly Nebula With the GTC

    Science.gov (United States)

    Kirichenko, Aida; Danilenko, Andrey; Shternin, Peter; Shibanov, Yuriy; Ryspaeva, Elizaveta; Zyuzin, Dima; Durant, Martin; Kargaltsev, Oleg; Pavlov, George; Cabrera-Lavers, Antonio

    2015-03-01

    PSR J2021+3651 is a 17 kyr old rotation powered pulsar detected in the radio, X-rays, and γ-rays. It powers a torus-like pulsar wind nebula with jets, dubbed the Dragonfly, which is very similar to that of the Vela pulsar. The Dragonfly is likely associated with the extended TeV source VER J2019+368 and extended radio emission. We conducted first deep optical observations with the Gran Telescopio Canarias in the Sloan r‧ band to search for optical counterparts of the pulsar and its nebula. No counterparts were detected down to r‧ ≳ 27.2 and ≳24.8 for the point-like pulsar and the compact X-ray nebula, respectively. We also reanalyzed Chandra archival X-ray data taking into account an interstellar extinction-distance relation, constructed by us for the Dragonfly line of sight using the red-clump stars as standard candles. This allowed us to constrain the distance to the pulsar, D=1.8-1.4+1.7 kpc at 90% confidence. It is much smaller than the dispersion measure distance of ˜12 kpc but compatible with a γ-ray “pseudo-distance” of 1 kpc. Based on that and the optical upper limits, we conclude that PSR J2021+3651, similar to the Vela pulsar, is a very inefficient nonthermal emitter in the optical and X-rays, while its γ-ray efficiency is consistent with an average efficiency for γ-pulsars of similar age. Our optical flux upper limit for the pulsar is consistent with the long-wavelength extrapolation of its X-ray spectrum while the nebula flux upper limit does not constrain the respective extrapolation. Based on observations made with the Gran Telescopio Canarias (GTC), instaled in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofsica de Canarias, in the island of La Palma, programme GTC3-11B.

  1. New records on the Abruzzo brown bear range, particularly on Gran Sasso and Laga Mountains / Osservazioni sull'areale dell'orso marsicano, con particolare riferimento al Gran Sasso e ai Monti della Laga

    Directory of Open Access Journals (Sweden)

    Marco Bologna

    1992-07-01

    Full Text Available Abstract New records of Abruzzo brown bear (Ursus arctos marsicanus in some mountain massifs of Central Apennines (Laga, Gran Sasso, Velino, Sirente and Northern Molise are reported. These records are discussed in relation to the recent dispersion of the relictual population, and the probable recolonization of some areas where the brown bear went out in the last two centuries. Riassunto Viene brevemente discusso il fenomeno di dispersione e ricolonizzazione di aree montane centro-appenniniche da parte dell'orso bruno marsicano. Tra i nuovi reperti, particolarmente significativi sono quelli più settentrionali, relativi ai Monti della Laga ed al Gran Sasso, dove la specie era estinta da circa duecento anni.

  2. Los Laparocerus Schoenherr, 1834 de las Canarias orientales, islas Salvajes y Marruecos (Coleoptera, Curculionidae, Entiminae

    Directory of Open Access Journals (Sweden)

    Machado, A.

    2011-12-01

    Full Text Available This contribution to the knowledge of the genus Laparocerus Schoenherr, 1834 in Macaronesia concerns species from the Eastern Canaries, Salvage Islands and Morocco. Laparocerus rasus Wollaston, 1864 is redescribed and two new subspecies localised in Fuerteventura are ascribed to it: L. rasus betancor n. spp. and L. rasus jandiensis n. ssp. Several new species are described from that same island: L. maxorata n. sp., L. colonnellii n. sp., L. calvus n. sp., L. xericola n. sp., L. fraterculus n. sp., and L. longipennis n. sp.; from the island of Lanzarote L. curvipes famara n. ssp., and from the Selvage Islands L. garretai albosquamosus n. spp. The only confirmed species form Morocco, Laparocerus susicus (Escalera, 1914, is redescribed and L. susicus montanus n. spp., from the interior, and L. susicus inexpectatus nov. nom., from the coastal region of Tiznit are assigned to it. A retro-colonization from the Canary Islands to the continent is hypothesized for this Moroccan species. Doubtful records and unresolved species are commented on, and keys in Spanish and English for identifying all Laparocerus inhabiting this geographical context are provided.Esta contribución al conocimiento del género Laparocerus Schoenherr, 1834 está dedicada a las Canarias orientales, islas Salvajes y Marruecos. Se redescribe Laparocerus rasus Wollaston, 1864 y se le asignan dos nuevas subespecies localizadas en Fuerteventura: L. rasus betancor n. spp. y L. rasus jandiensis n. ssp. De esta misma isla se describen varias especies nuevas: L. maxorata n. sp., L. colonnellii n. sp., L. calvus, n. sp., L. xericola n. sp., L. fraterculus n. sp. y L. longipennis n. sp.; de la isla de Lanzarote L. curvipes famara n. ssp., y de las islas Salvajes L. garretai albosquamosus n. spp. Se redescribe la única especie confirmada de Marruecos, Laparocerus susicus (Escalera, 1914, a la que se adscriben L. susicus montanus n. spp., del interior, y L. susicus inexpectatus nom. nov., de

  3. Comentarios sobre Cnemeplatiini Jacquelin du Val, 1861 (Coleoptera, Tenebrionidae de la península Ibérica e islas Canarias

    Directory of Open Access Journals (Sweden)

    Ferrer, J.

    2009-12-01

    Full Text Available The taxonomy and geographic distribution of the Iberian and Canary Islands representatives of the tribe Cnemeplatiini, is established, after study of available types. Several errors in recent papers are corrected. Cnemeplatia laticeps (Wollaston, 1857 described from Madeira, is cited as new record for the isla of La Palma, Canary Islands. Cnemeplatia atropos Costa 1847 is a valid species. Cnemeplatia rufa Tournier, 1874 stat. rest. and C. mouchampsi Español 1948 stat. nov. are considered as valid species and not geographical subspecies of Cnemeplatia atropos Costa, 1847, based on morphology. The name Cnemeplatia rufa Tournier, 1874 has priority over C. atropos africana Kaszab, 1938 syn. nov. Figures of discriminatory characters to identify all European and Northwestern African described species are given.

    La composición taxonómica y distribución geográfica de los representantes de la tribu Cnemeplatiini en la Península Ibérica y Canarias, se establece tras el estudio de los tipos disponibles. Se corrigen varios errores de trabajos recientes. Cnemeplatia laticeps (Wollaston, 1857 descrita de Madeira, se cita como nuevo para la isla de La Palma, Islas Canarias. Cnemeplatia atropos Costa, 1847 es tratado como una especie válida. Cnemeplatia rufa Tournier, 1874 stat. rest. y C. mouchampsi Español 1948 stat. nov. son consideradas como especies válidas, no como subespecies geográficas de Cnemeplatia atropos Costa, 1847, en base a su morfología. El nombre Cnemeplatia rufa Tournier, 1874 tiene prioridad sobre C. atropos africana Kaszab, 1938 syn. nov. Se presentan figuras de los caracteres morfológicos discriminatorios para identificar las diferentes especies descritas de Europa y NO de África.

  4. Identification and characterization of rock slope instabilities in Val Canaria (TI, Switzerland) based on field and DEM analyses

    Science.gov (United States)

    Ponzio, Maria; Pedrazzini, Andrea; Matasci, Battista; Jaboyedoff, Michel

    2013-04-01

    In Alpine areas rockslides and rock avalanches represent common gravitational hazards that potentially constitute a danger for people and infrastructures. The aim of this study is to characterize and understand the different factors influencing the distribution of large slope instabilities affecting the Val Canaria (southern Switzerland). In particular the importance of the tectonic and lithological settings as well as the impact of the groundwater circulations are investigated in detail. Val Canaria is a SW-NE trending lateral valley that displays potential large rock slope failure. Located just above one of the main N-S communication way (Highway, Railway) through the Alps, the development of large instabilities in the Val Canaria might have dramatic consequences for the main valley downstream. The dominant geological structure of the study area is the presence of a major tectonic boundary separating two basement nappes, constituted by gneissic lithologies, i.e. the Gotthard massif and the Lucomagno nappe that are located in the northern and southern part of the valley respectively. The basement units are separated by meta-sediments of Piora syncline composed by gypsum, dolomitic breccia and fractured calc-mica schists. Along with detailed geological mapping, the use of remote sensing techniques (Aerial and Terrestrial Laser Scanning) allows us to propose a multi-disciplinary approach that combines geological mapping and interpretation with periodic monitoring of the most active rockslide areas. A large array of TLS point cloud datasets (first acquisition in 2006) constitute a notable input, for monitoring purposes, and also for structural, rock mass characterization and failure mechanism interpretations. The analyses highlighted that both valley flanks are affected by deep-seated gravitational slope deformation covering a total area of about 8 km2 (corresponding to 40% of the catchment area). The most active area corresponds to the lower part of the valley

  5. The Middle-to-Upper Palaeolithic transition in Cova Gran (Catalunya, Spain) and the extinction of Neanderthals in the Iberian Peninsula.

    Science.gov (United States)

    Martínez-Moreno, Jorge; Mora, Rafael; de la Torre, Ignacio

    2010-03-01

    The excavations carried out in Cova Gran de Santa Linya (Southeastern PrePyrenees, Catalunya, Spain) have unearthed a new archaeological sequence attributable to the Middle Palaeoloithic/Upper Palaeolithic (MP/UP) transition. This article presents data on the stratigraphy, archaeology, and (14)C AMS dates of three Early Upper Palaeolithic and four Late Middle Palaeolithic levels excavated in Cova Gran. All these archaeological levels fall within the 34-32 ka time span, the temporal frame in which major events of Neanderthal extinction took place. The earliest Early Upper Palaeolithic (497D) and the latest Middle Palaeolithic (S1B) levels in Cova Gran are separated by a sterile gap and permit pinpointing the time period in which the Mousterian disappeared from Northeastern Spain. Technological differences between the Early Upper Palaeolithic and Late Middle Palaeolithic industries in Cova Gran support a cultural rupture between the two periods. A series of 12 (14)C AMS dates prompts reflections on the validity of reconstructions based on radiocarbon data. Thus, results from excavations in Cova Gran lead us to discuss the scenarios relating the MP/UP transition in the Iberian Peninsula, a region considered a refuge of late Neanderthal populations. Copyright 2009 Elsevier Ltd. All rights reserved.

  6. Mundo perdido, paraíso encontrado: lugar, identidad y producción en la Gran Sabana, Venezuela

    Directory of Open Access Journals (Sweden)

    Luis Fernando Angosto Ferrández

    2013-01-01

    Full Text Available Durante el siglo xx afloraron en la Gran Sabana las bases de una producción inserta en el sistema capitalista, pero aún hoy parte de sus habitantes ancestrales, indígenas pemón, mantienen una economía de subsistencia notablemente autónoma. Este trabajo examina, por una parte, cómo las narrativas exotizantes de lugar e identidad construidas en torno a la Gran Sabana y sus habitantes han contribuido a consolidar una reduccionista polarización analítica de esferas “indígenas” y “no-indígenas”; por otra parte, identifica focos materiales de diversificación estructural entre los pobladores de la Gran Sabana más allá de esas esferas, y reclama atención para dichos focos en la búsqueda de soluciones a los conflictos en la región.

  7. Trent'anni di Gran Sasso = Thirty years of Gran Sasso volume in onore di Antonino Zichichi = a volume in honour of Antonino Zichichi

    CERN Document Server

    2010-01-01

    This volume - in honour of Antonino Zichichi - is a collection of papers that have appeared in various journals, proceedings and books published by the Italian Physical Society over the last few decades about the Gran Sasso National Laboratory. The articles reproduced in the book come from Il Nuovo Saggiatore, Il Nuovo Cimento and from the Proceedings of the International School of Physics "Enrico Fermi" of Varenna. A few other relevant articles from special volumes have been included for the sake of completeness.

  8. La ordenación territorial, urbanística y de los espacios naturales protegidos y el modelo territorial en la Comunidad Autónoma de Canarias (1982-2009

    Directory of Open Access Journals (Sweden)

    Juan M. Parreño Castellano

    2010-01-01

    Full Text Available Los graves problemas territoriales existentes en Canarias han motivado un continuo desarrollo normativo autonómico desde los ochenta que culminó con la aprobación en 2000 de un Texto Refundido de las leyes de ordenación del territorio en el que se intentó estructurar jerárquicamente la ordenación territorial, el planeamiento urbanístico y la protección de los espacios naturales. Además de dotarse con instrumentos propios de ordenación, la presente década se ha caracterizado por la definición normativa de un modelo de desarrollo sostenible a través de la formulación de unas Directrices de ordenación. En este artículo abordamos el análisis de las características de la ordenación territorial en Canarias y del modelo de desarrollo promulgado, con el fin de manifestar su escasa capacidad de intervención al mismo tiempo que aportamos una reflexión sobre las nuevas orientaciones anti-cíclicas aprobadas recientemente y que pueden suponer el desmoronamiento de parte del modelo de desarrollo construido en la presente década.

  9. Turismo y administración local en Canarias: un problema pendiente. Bases para un debate

    Directory of Open Access Journals (Sweden)

    Juan Israel García Cruz

    2014-02-01

    Full Text Available Las administraciones locales deben gestionar una parte importante de las infraestructuras y serviciosdemandados por el turismo. En estas áreas se combina la prestación de servicios a la población turísticay población local, lo que supone su redimensionamiento y diversificación. Como resultado, los municipiosafectados por esta dualidad deben adaptar la gestión de sus recursos, produciéndose importantesdesequilibrios.Esta distinción ha abierto un importante debate en torno a la figura del «municipio turístico» y su«discriminación positiva» frente al resto de municipios. Una fórmula que trata de compensar el desequilibrioque genera la actividad turística en la gestión local. Actualmente las islas Canarias carecende criterios oficiales para la definición de un municipio turístico, así como no se ha consensuado unlistado oficial que los identifique. En este sentido, el presente artículo pretende hacer algunas aportacionesa este debate, planteando una propuesta de delimitación.

  10. Islas de ida y vuelta. Canarias y El Caribe en contexto colonial

    Directory of Open Access Journals (Sweden)

    Ortiz García, Carmen

    2004-12-01

    Full Text Available On the presupposition that the conquest of the Canary Islands set the colonial stage for the later Spanish enterprises in the Americas, the author discusses a number of elements of identity shared by the islands of both the eastern Atlantic and the Caribbean. Sugar, the slave trade and the raising of bananas, cochineal and tobacco are the instances chosen for this comparative analysis. In addition, the author makes a reference to the legends of the apparition of the Virgin of Charity at El Cobre, in Cuba, and of Candlemas in Tenerife.

    Partiendo de la idea de que la conquista de las Islas Canarias fue el primer ensayo colonial de lo que luego desarrollarían los españoles en América, se examinan algunos elementos de identidad entre el mundo isleño atlántico y caribeño, producidos precisamente por esa situación inicial de dominio colonial. El azúcar, la trata de esclavos, los cultivos de plátano, grana y tabaco son los ejemplos escogidos para este análisis comparado. Finalmente se hace una referencia comparativa de las leyendas de la aparición de la Virgen de la Caridad del Cobre en Cuba y de la Virgen de Candelaria en Tenerife

  11. PPICA, Power Plant Investment Cost Analysis

    International Nuclear Information System (INIS)

    Lefevre, J.C.

    2002-01-01

    1 - Description of program or function: This software package contains two modules: - CAPITAL1 calculates investment costs from overnight costs, based on the capital structure of the utility (debt/equity ratio), return and interest rates according to the type of securities involved, and a standard-shaped curve of capital outlays during construction of a power plant. - FCRATE1 calculates the year-by-year revenue requirements to cover the capital-related charges incurred by the new investment and their economic equivalent: the levelled fixed-charge rate and capital contribution to the levelled unit power generation cost per kWh. They are proposed as an alternative to the corresponding modules CAPITAL and FCRATE, included in the LPGC (Levelled Power Generation Cost) suite of codes developed by ORNL and US-DOE. They perform the same type of analysis and provide the same results. 2 - Methods: Results output from CAPITAL1, in terms of the initial investment at startup and the fraction thereof that is allowable for tax depreciation, can be transferred automatically as data input to FCRATE1. Other user-defined data are: the project life, the time horizon of the economic analysis (which does not necessarily coincide with the project life), the plant load factor (lifetime average), the tax rate applicable to utility's income, the tax depreciation scheme and the tax charge accounting method (normalised or flow- through). The results of CAPITAL1 and FCRATE1 are expressed both in current money and in constant money of a reference year. Inflation rate and escalation rate of construction expenditures during construction period, and of fixed charges during service life are defined by the user. The discount rate is set automatically by the programme, equal to the weighted average tax-adjusted cost of money. 3 - Restrictions on the complexity of the problem: CAPITAL1 and FCRATE1 are 'alternatives', not 'substitutes', to the corresponding programs CAPITAL and FCRATE of the LPGC

  12. Air pollution and mortality in the Canary Islands: a time-series analysis

    Directory of Open Access Journals (Sweden)

    Ballester Ferran

    2010-02-01

    Full Text Available Abstract Background The island factor of the cities of Las Palmas de Gran Canaria and Santa Cruz de Tenerife, along with their proximity to Africa and their meteorology, create a particular setting that influences the air quality of these cities and provides researchers an opportunity to analyze the acute effects of air-pollutants on daily mortality. Methods From 2000 to 2004, the relationship between daily changes in PM10, PM2.5, SO2, NO2, CO, and ozone levels and daily total mortality and mortality due to respiratory and heart diseases were assessed using Generalized Additive Poisson models controlled for potential confounders. The lag effect (up to five days as well as the concurrent and previous day averages and distributed lag models were all estimated. Single and two pollutant models were also constructed. Results Daily levels of PM10, PM2.5, NO2, and SO2 were found to be associated with an increase in respiratory mortality in Santa Cruz de Tenerife and with increased heart disease mortality in Las Palmas de Gran Canaria, thus indicating an association between daily ozone levels and mortality from heart diseases. The effects spread over five successive days. SO2 was the only air pollutant significantly related with total mortality (lag 0. Conclusions There is a short-term association between current exposure levels to air pollution and mortality (total as well as that due specifically to heart and respiratory diseases in both cities. Risk coefficients were higher for respiratory and cardiovascular mortality, showing a delayed effect over several days.

  13. Subtidal soft-bottom macroinvertebrate communities of the Canary Islands. An ecological approach

    Directory of Open Access Journals (Sweden)

    Oscar Monterroso

    2012-03-01

    Full Text Available The Canarian archipelago is characterized by a mosaic of soft-bottoms such as Cymodocea nodosa meadows, Caulerpa spp. meadows, mäerl bottoms, sabellid fields and bare sandy seabeds, including various macroinfaunal communities. Vegetated habitats (e.g. Cymodocea and Caulerpa maintain more diverse communities than the non-vegetated seabeds. The results indicated that Caulerpa meadows and, to a lesser extent, Cymodocea nodosa and sabellid fields are the richest and most diverse ecosystems in the study area. Moreover, biodiversity differences among islands could be detected with maximum values on the eastern islands (Lanzarote and Gran Canaria and lowest values on the western ones (La Palma.O arquipélago das Canárias é caracterizado por um mosaico de fundos inconsolidados contendo bancos de Cymodocea nodosa, Caulerpa spp., fundos calcários, bancos de sabelídeos e sedimento não biogênico, que abrigam diferentes comunidades da macrofauna. Ambientes vegetados (Cymodocea e Caulerpa possuem comunidades mais diversificadas quando comparados aos ambientes de fundos não vegetados. Os resultados do presente estudo indicaram que os bancos de Caulerpa, primeiramente, e em seguida os bancos de Cymodocea nodosa e de sabelídeos, formam os sistemas mais ricos e diversificados da área. Além disso, puderam também ser detectadas diferenças de biodiversidade entre as ilhas do arquipélago, sendo os valores mais altos localizados nas ilhas ao leste (Lanzarote e Gran Canaria e os menores nas ilhas à oeste (La Palma.

  14. Phylogeography and seed dispersal in islands: the case of Rumex bucephalophorus subsp. canariensis (Polygonaceae).

    Science.gov (United States)

    Talavera, María; Navarro-Sampedro, Laura; Ortiz, Pedro L; Arista, Montserrat

    2013-02-01

    Rumex bucephalophorus subsp. canariensis is an endemic taxon to Macaronesia with diaspore polymorphism. The origin and colonizing route of this taxon in Macaronesia was studied using molecular data and information on diaspore types. Amplified fragment length polymorphism (AFLP) was used in 260 plants from 22 populations of R. bucephalophorus subsp. canariensis, four from the Madeiran archipelago and 18 from the Canary archipelago. Diaspore production was analysed in 9-50 plants from each population used for AFLP analysis. One hundred and one plants from the Madeiran archipelago and 375 plants from the Canary Islands were studied. For each plant the type of diaspore produced was recorded. Overall populations had low genetic diversity but they showed a geographical pattern of genetic diversity that was higher in the older eastern islands than in the younger western ones. Two types of dispersible diaspores were found: in the eastern Canary islands (Lanzarote, Fuerteventura and Gran Canaria), plants produced exclusively long-dispersible diaspores, whereas in the western Canary islands (Tenerife, La Gomera, El Hierro) and the Madeiran archipelago plants produced exclusively short-dispersible diaspores. Genetically, the studied populations fell into four main island groups: Lanzarote-Fuerteventura, Gran Canaria, Tenerife-El Hierro and La Gomera-Madeira archipelago. A Moroccan origin of R. bucephalophorus subsp. canariensis is hypothesized with a colonization route from the eastern to the western islands. In addition, at least one gene flow event from La Gomera to the Madeiran archipelago has taken place. During the colonization process the type of dispersible diaspore changed so that dispersability decreased in populations of the westernmost islands.

  15. Mapping natural radioactivity of soils in the eastern Canary Islands.

    Science.gov (United States)

    Arnedo, M A; Rubiano, J G; Alonso, H; Tejera, A; González, A; González, J; Gil, J M; Rodríguez, R; Martel, P; Bolivar, J P

    2017-01-01

    The Canary Islands archipielago (Spain) comprises seven main volcanic islands and several islets that form a chain extending for around 500 km across the eastern Atlantic, between latitudes 27°N and 30°N, with its eastern edge only 100 km from the NW African coast. The administrative province of Las Palmas comprises the three eastern Canary Islands (Lanzarote, Fuerteventura and Gran Canaria). An extensive study of terrestrial gamma dose rates in surface soils has been carried out to cover the entire territory of the province (4093 km 2 ). The average outdoor gamma dose rate in air at 1 m above ground is 73 nGyh -1  at Gran Canaria, 32 nGyh -1  at Fuerteventura, and 25 nGyh -1  at Lanzarote. To complete the radiological characterization of this volcanic area, 350 soil samples at 0-5 cm depth were collected to cover all the geologic typologies of the islands. These samples were measured using high resolution gamma spectrometry to determine the activity concentrations of 226 Ra, 232 Th and 40 K. The average values obtained were 25.2 Bq/kg, 28.9 Bq/kg, and 384.4 Bq/kg, respectively. Maps of terrestrial gamma activity, effective dose, and activity concentrations of 226 Ra, 232 Th and 40 K for the region have been developed through the use of geostatistical interpolation techniques. These maps are in accord with the geology of the islands. Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Estudios de impacto ambiental en viaductos de gran longitud

    OpenAIRE

    Moya Matute, David

    2009-01-01

    El contenido de esta tesina forma parte de un proyecto concedido por el Ministerio de Educación y Ciencia en el año 2006 y coordinado entre el Departamento de Ingeniería de la Construcción de la UPC y el Departamento de Ingeniería Civil de la UCLM. El objeto de dicho proyecto de investigación es el estudio de la optimización de viaductos de gran longitud desde distintas vertientes, como son: estructural, plazo de ejecución, impacto ambiental, seguridad y salud, costes globales, et...

  17. Geomorphology and hydrochemistry of 12 Alpine lakes in the Gran Paradiso National Park, Italy

    Directory of Open Access Journals (Sweden)

    Aldo MARCHETTO

    2010-08-01

    Full Text Available Twelve Alpine lakes located in the Gran Paradiso National Park, in the western Italian Alps, were sampled during the ice free period in 2008 and analysed for the main morphological, chemical and physical variables in relation to the characteristics of their watershed, with the aim to create a reference database for present and future ecological studies and to support conservation politics with scientific data. The results highlighted that weathering process and direct precipitation input are the main factors determining the hydrochemistry of the studied lakes; moreover the morphological characteristics highly affects the physical properties of the lakes starting from stratification process. The acidification status, the atmospheric input of N compounds and the supply of nutrients were considered in detail. The studied lakes seem to be well preserved by acidification risk. Comparing data from Gran Paradiso National Park with data from European mountain regions ranging in N deposition rates, allows to consider long range anthropogenic impact: the detection of relative low Total Nitrogen (TN concentration is not necessarily a synonym of a soft impact of long range pollutants, being the final nitrogen concentration dependent from retention process, closely related to catchment characteristics, besides N deposition rates; moreover the dominance of Inorganic Nitrogen (IN on Organic Nitrogen (ON highlights that the lakes are interested by N deposition and probably by long range transport of pollutants produced in the urbanized area surrounding the massif. However the Gran Paradiso National Park area is by far less affected by atmospheric pollutants than other Alpine regions, as the Central Alps. Total Phosphorus (TP concentration in Gran Paradiso lakes (1-13 μg L-1, mean level = 4 μg L-1 is an index of oligotrophic and ultraoligotrophic conditions and according to Redfield's ratio phosphorus is mainly the phytoplankton growth limiting element

  18. Aplicación de marcadores genéticos en la conservación de taxones vegetales insulares amenazados: géneros "Crambe" L. (sect. "Dendrocrambe" DC.) y "Ruta" L.

    OpenAIRE

    Soto Medina, Moisés E.

    2015-01-01

    Programa de doctorado: Ecología y gestión de los recursos vivos marinos. En port.: Jardín Botánico Canario "Viera y Clavijo" En esta tesis doctoral se ha estudiado la variabilidad genética y su estructuración mediante el análisis de 12 loci isoenzimáticos en las especies vegetales endémicas de Gran Canaria del género Crambe (C. pritzelii y C. tamadabensis), y las relaciones resultantes del análisis filogenético y filogeográfico de las secuencias de 4 regiones del ADN plastidial en las e...

  19. Diseño de información en la señalización de espacios naturales: pautas de estilo

    OpenAIRE

    Camacho Díaz, Oriol

    2013-01-01

    Se estudia el diseño de información aplicado a la señalización de espacios naturales (orientación y accesibilidad), sobre todo aquellas áreas con afluencia masiva de senderistas y especial interés natural y ecológico, conformando un paisaje de gran interés relacionado con el ecoturismo. Estudio y actualización de los aspectos gráficos y técnicos de los Espacios Naturales Protegidos de Canarias, como modelo extrapolable a otras comunidades autónomas y espacios de características similares.OBJE...

  20. Flora coralinal no geniculada de la región macaronésica: evidencias moleculares de su singularidad y relaciones biogeográficas con la flora europea

    OpenAIRE

    Peña Freire, Viviana; Afonso-Carrillo, Julio; de Clerck, Olivier; Barreiro, Rofolfo; Gil-Rodríguez, María C.; Viera-Rodríguez, Maria A.; Neto, Ana I.; Le Gall, Line

    2013-01-01

    XIX Simposio de Botánica Criptogámica, Las Palmas de Gran Canaria, 24-28 de junio de 2013. Después de las primeras contribuciones a la flora coralinal de la región macaronésica por parte de Lamarck (1815), Montagne (1840) y Viera (1868-1869), han sido unos pocos ficólogos los que han aportado nuevas especies para los diferentes archipiélagos que componen esta región (Foslie 1905, 1906, May 1912, Lemoine 1929). Aparte del componente endémico de su flora, otras especies citadas presentan una...

  1. GP_BOT: plataforma hardware para la enseñanza de robótica en la titulación de ingeniería informática.

    OpenAIRE

    González-de-Rivera, Guillermo; López-Buedo, Sergio; González, Iván; Venegas, C.; Garrido, Javier; Boemo, Eduardo I.

    2002-01-01

    Versión electrónica de la ponencia presentada en V Congreso de Tecnologías Aplicadas a la Enseñanza de la Electrónica, celebrado en Las Palmas de Gran Canaria en 2002 En este artículo se resumen las principales características de unas tarjetas basadas en el microcontrolador MC68HC908GP32 de Motorola, que se utilizan en el Laboratorio de la asignatura Robótica Autónoma en la carrera de Ingeniería Informática de la Universidad Autónoma de Madrid.

  2. The CERN neutrino beam to Gran Sasso (NGS). Conceptual technical design

    Energy Technology Data Exchange (ETDEWEB)

    Elsener, K [ed.; Acquistapace, G; Baldy, J L; Ball, A E; Bonnal, P; Buhler-Broglin, M; Carminati, F; Cennini, E; Ereditato, A; Falaleev, V; Faugeras, P; Ferrari, A; Foa, L; Fortuna, G; Genand, R; Grant, A L; Henny, L; Hilaire, A; Huebner, K; Inigo-Golfin, J; Kissler, K H; Lopez-Hernandez, L A; Maugain, J M; Mayoud, M; Migliozzi, P; Missiaen, D; Palladino, V; Papadopoulos, I M; Peraire, S; Pietropaolo, F; Rangod, S; Revol, J P; Roche, J; Sala, P; Sanelli, C; Stevenson, G R; Tomat, B; Tsesmelis, E; Valbuena, R; Vincke, H; Weisse, E; Wilhelmsson, M

    1998-05-19

    The conceptual design of a new neutrino facility at CERN is presented. Starting with 400 GeV/c protons from the Super Proton Synchrotron (SPS), a neutrino beam is produced which is directed towards the underground Gran Sasso Laboratory in Italy, 732 km away from CERN, where large, complex detectors will allow long-baseline experiments searching for neutrino oscillation phenomena to be performed. (orig.)

  3. The CERN neutrino beam to Gran Sasso (NGS). Conceptual technical design

    International Nuclear Information System (INIS)

    Elsener, K.; Acquistapace, G.; Baldy, J.L.; Ball, A.E.; Bonnal, P.; Buhler-Broglin, M.; Carminati, F.; Cennini, E.; Ereditato, A.; Falaleev, V.; Faugeras, P.; Ferrari, A.; Foa, L.; Fortuna, G.; Genand, R.; Grant, A.L.; Henny, L.; Hilaire, A.; Huebner, K.; Inigo-Golfin, J.; Kissler, K.H.; Lopez-Hernandez, L.A.; Maugain, J.M.; Mayoud, M.; Migliozzi, P.; Missiaen, D.; Palladino, V.; Papadopoulos, I.M.; Peraire, S.; Pietropaolo, F.; Rangod, S.; Revol, J.P.; Roche, J.; Sala, P.; Sanelli, C.; Stevenson, G.R.; Tomat, B.; Tsesmelis, E.; Valbuena, R.; Vincke, H.; Weisse, E.; Wilhelmsson, M.

    1998-01-01

    The conceptual design of a new neutrino facility at CERN is presented. Starting with 400 GeV/c protons from the Super Proton Synchrotron (SPS), a neutrino beam is produced which is directed towards the underground Gran Sasso Laboratory in Italy, 732 km away from CERN, where large, complex detectors will allow long-baseline experiments searching for neutrino oscillation phenomena to be performed. (orig.)

  4. Bases de conocimiento multilíngües para el procesamiento semántico a gran escala

    OpenAIRE

    Cuadros Oller, Montserrat; Rigau Claramunt, German

    2008-01-01

    Este artículo presenta el resultado del estudio de un amplio conjunto de bases de conocimiento multilingües actualmente disponibles que pueden ser de interés para un gran número de tareas de procesamiento semántico a gran escala. El estudio incluye una amplia gama de recursos derivados de forma manual y automática para el inglés y castellano. Con ello pretendemos mostrar una imagen clara de su estado actual. Para establecer una comparación justa y neutral, la calidad de cada recurso se ha eva...

  5. UNIFORMIDAD FISCAL VERSUS TERRITORIOS PRIVILEGIADOS EN LA ESPAÑA DEL SIGLO XVIII: LOS CASOS DE NAVARRA Y CANARIAS

    Directory of Open Access Journals (Sweden)

    Sergio Solbes Ferri

    2014-12-01

    Full Text Available El trabajo se organiza desde una doble reflexión. Por un lado, el éxito o el fracaso en la aplicación de los proyectos de reforma fiscal diseñados para su imposición en el conjunto de la Monarquía española en la primera mitad del siglo XVIII. Por otro lado, el éxito o el fracaso en la defensa de los privilegios fiscales de Navarra y de Canarias, territorios en los que Felipe V no pudo, ni quiso, imponer el derecho de conquista tras la guerra de Sucesión. Analizamos estas especificidades con la intención de conocer aquellos aspectos que perduran en el tiempo y aquellos que desaparecen. Finalmente, tratamos de reflexionar sobre si el resultado final es la consecuencia necesaria de un proyecto de reforma preconcebido o de una simple adaptación a las circunstancias propias del devenir histórico. Apostamos por la primera solución, así que tratamos en integrar los cambios implementados con el pensamiento y los programas de reforma diseñados por Alberoni y Patiño.AbstractThis study is organized from a double perspective. Firstly, the success or failure in the implementation of projects designed to reform taxation in the whole Spanish monarchy during the first half of the eighteenth century. On the other hand, the success or failure in defending the fiscal privileges of Navarra and Canarias, territories in which Philip V could not impose the right of conquest after the War of Succession. We analyse these specificities with the intention of meeting those aspects that remain and those that disappear. Lastly, we try to reflect if the final status is the result of a preconceived reform project or a simple adaptation to the circumstances of the historical development. We focus on the first solution, so we try to relate the implemented changes with the Alberoni and Patiño reform programs.

  6. The Gran Sasso muon puzzle

    CERN Document Server

    Fernandez-Martinez, Enrique

    2012-01-01

    We carry out a time-series analysis of the combined data from three experiments measuring the cosmic muon flux at the Gran Sasso laboratory, at a depth of 3800 m.w.e. These data, taken by the MACRO, LVD and Borexino experiments, span a period of over 20 years, and correspond to muons with a threshold energy, at sea level, of around 1.3 TeV. We compare the best-fit period and phase of the full muon data set with the combined DAMA/NaI and DAMA/LIBRA data, which spans the same time period, as a test of the hypothesis that the cosmic ray muon flux is responsible for the annual modulation detected by DAMA. We find in the muon data a large-amplitude fluctuation with a period of around one year, and a phase that is incompatible with that of the DAMA modulation at 5.2 sigmas. Aside from this annual variation, the muon data also contains a further significant modulation with a period between 10 and 11 years and a power well above the 99.9% C.L threshold for noise, whose phase corresponds well with the solar cycle: a s...

  7. The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): technical or conventional; Definicion del limite occidental del Sistema Acuifero Guarani (Gran Chaco, Argentina): tecnico o convencional

    Energy Technology Data Exchange (ETDEWEB)

    Rodello, E. A.; Veroslavsky, G.

    2012-11-01

    Unlike the eastern, northern and southern borders of the Guarani aquifer system (GAS), which extends beneath considerable regions of Argentina, Brazil, Paraguay and Uruguay, the western boundary, within the Gran Chaco, has no clear hydrogeologic definition that can be recognized at either the surface or subsurface. For this reason, the precise location of the aquifer in this area is open to many different possibilities, depending upon the factors or interests involved. Thus technical specialists have proposed locations that include or exclude, according to their own criteria, large sections of the Argentine Gran Chaco, the management and use of which, from an administrative point of view, imply diverse economic consequences. The Lomadas de Otumpa, located near the border between the Santiago del Estero and Chaco provinces, are gently sloping hills, rising to a height of no more than 110 m above the wide expanse of surrounding plains comprising the Gran Chaco. They trend NNE and are 200 km long and from 20 to 80 km in width, reflecting the presence of the regional Otumpa alignment. The Lomadas de Otumpa are clearly defined at the surface and thus they allow a geographical boundary to be imposed on the GAS sequences according to: i) their notable structural features at the surface, and ii) the close matching of the thinning and/or absence of the associated sedimentary record underground. Because the definition of the limits of the GAS has an influence on its evaluation, management, use and conservation, both at a technical and administrative level, it is of great importance to ascertain its hydrogeologic boundaries. (Author)

  8. Interfaces cerebro-máquina, un gran paso hacia la Inteligencia Artificial

    Directory of Open Access Journals (Sweden)

    Jesús Cortés

    2009-03-01

    Full Text Available Dentro de la Neurociencia Computacional, la Neuro-ingeniería desarrolla sistemas de comunicación entre una máquina y alguna parte del sistema nervioso. Sin lugar a dudas, estos sistemas constituyen un gran reto científico, ingenieril y ético. Sin embargo, su correcto funcionamiento todavía plantea muchos problemas.

  9. PROPUESTA DE ITINERARIO GEOTURÍSTICO URBANO EN GARACHICO (TENERIFE, CANARIAS, ESPAÑA

    Directory of Open Access Journals (Sweden)

    Fco. Javier Dóniz-Páez

    2016-01-01

    Full Text Available En los destinos maduros de sol y playa los nuevos productos y experiencias turísticas son una realidad actual y necesaria. El geoturismo urbano es un producto de turismo muy novedoso que consiste en explotar turísticamente el relieve presente dentro de las ciudades tanto en afloramientos naturales como en los diferentes elementos del patrimonio cultural tangible inmueble. El objetivo de este artículo es diseñar y proponer un itinerario de geoturismo urbano con base espacial por el casco histórico de Garachico (Tenerife, Canarias, España, asociado directa e indirectamente con la erupción volcánica de 1706 y que contribuya a diversificar su oferta turística polarizada en sus atractivos históricos. Para ello la metodología utilizada consistió en el inventario, caracterización y valoración del patrimonio geológico-geomorfológico presente en los diferentes geomorfositios y en el patrimonio cultural tangible inmueble del casco histórico de la ciudad. Se seleccionaron catorce recursos naturales y culturales vinculados con la geodiversidad de Garachico. En función de la variedad de recursos inventariados, de las posibilidades que ofrece y de su distribución geográfica, el itinerario propuesto en formato de ruta abierta recorre los catorce atractivos seleccionados a lo largo de unos 2 km de longitud y de tres horas de duración.

  10. Incidentes en la zona aérea de Canarias y Africa occidental durante la II Guerra Mundial

    Directory of Open Access Journals (Sweden)

    Juan José Díaz Benítez

    2013-11-01

    Full Text Available La política exterior española durante la II Guerra Mundial empezó a virar hacia la neutralidad con la llegada de Gómez Jordana al Ministerio de Asuntos Exteriores en 1942. Sin embrago, la colaboración con el Eje, aún no concluida, provocó, fuertes presiones por parte de los aliados durante el resto de la guerra y alentó la sospecha de que aún continuaba el abastecimiento clandestino de submarinos alemanes en Canarias. Por ello. los aviones aliados sobrevolaron frecuentemente la Zona Aérea de Canarias y África Occidental entre principios de 1943 y el verano de 1944, provocando la reacción de las baterías de artillería antiaérea españolas e incluso la intervenci6n de los cazas con base en Gando. En ningún momento las fuerzas españolas intentaron derribar a los aviones aliados que atravesaban las aguas territoriales, sino sólo avisarlos para que se retiraran. No obstante, los aviones aliados persistieron, dando lugar a graves incidentes que estuvieron punto de ocasionar una fatalidad. Finalmente, las prolongadas gestiones diplomáticas emprendidas a finales de 1943 acabaron con estos incidentes, los cuales son un ejemplo olvidado de las tensas relaciones entre España y los aliados durante el declive del Eje.Spanish foreign policy through World War II turned to the way of neutrality after Gómez Jordana arrived at the Ministry of Foreign Affaires in 1943.  Howver, the persistent aid to tha Axis rose strong pressures by the Allies for the rest of the war and encouraged them for searching German U-boots at the Canary Islands. So Allied airplanes frequently flew over the Canary Islands and West Africa Aerial Zone between the beginning of 1943 and the summer of 1944, tempting the Spanish anti-aircraft batteries and the fighters based in Gaildo Gando reaction. The Spanish forces never tried to destroy the Allied aircrafts, but baut only warned them to keep away from yje Spanish aerial zone. Nevertheless, Allied planes still went on

  11. Hatching asynchrony aggravates inbreeding depression in a songbird (Serinus canaria): an inbreeding-environment interaction.

    Science.gov (United States)

    de Boer, Raïssa A; Eens, Marcel; Fransen, Erik; Müller, Wendt

    2015-04-01

    Understanding how the intensity of inbreeding depression is influenced by stressful environmental conditions is an important area of enquiry in various fields of biology. In birds, environmental stress during early development is often related to hatching asynchrony; differences in age, and thus size, impose a gradient in conditions ranging from benign (first hatched chick) to harsh (last hatched chick). Here, we compared the effect of hatching order on growth rate in inbred (parents are full siblings) and outbred (parents are unrelated) canary chicks (Serinus canaria). We found that inbreeding depression was more severe under more stressful conditions, being most evident in later hatched chicks. Thus, consideration of inbreeding-environment interactions is of vital importance for our understanding of the biological significance of inbreeding depression and hatching asynchrony. The latter is particularly relevant given that hatching asynchrony is a widespread phenomenon, occurring in many bird species. The exact causes of the observed inbreeding-environment interaction are as yet unknown, but may be related to a decrease in maternal investment in egg contents with laying position (i.e. prehatching environment), or to performance of the chicks during sibling competition and/or their resilience to food shortage (i.e. posthatching environment). © 2015 The Author(s).

  12. Profile of sodium phenylbutyrate granules for the treatment of urea-cycle disorders: patient perspectives

    Directory of Open Access Journals (Sweden)

    Peña-Quintana L

    2017-09-01

    Full Text Available Luis Peña-Quintana,1–3 Marta Llarena,2 Desiderio Reyes-Suárez,2 Luis Aldámiz-Echevarria4 1Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Universitario Materno-Infantil Hospital de Canarias, University of Las Palmas de Gran Canaria, 2Research Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria, Las Palmas, 3CIBEROBN, Madrid, 4Unit of Metabolism, Cruces University Hospital, BioCruces Health Research Institute, GCV-CIBER de Enfremedades Raras (CIBERER, Barakaldo, Spain Abstract: Urea-cycle disorders are a group of rare hereditary metabolic diseases characterized by deficiencies of one of the enzymes and transporters involved in the urea cycle, which is necessary for the removal of nitrogen produced from protein breakdown. These hereditary metabolic diseases are characterized by hyperammonemia and life-threatening hyperammonemic crises. Pharmacological treatment of urea-cycle disorders involves alternative nitrogen-scavenging pathways. Sodium benzoate combines with glycine and phenylacetate/phenylbutyrate with glutamine, forming, respectively, hippuric acid and phenylacetylglutamine, which are eliminated in the urine. Among the ammonia-scavenging drugs, sodium phenylbutyrate is a well-known long-term treatment of urea-cycle disorders. It has been used since 1987 as an investigational new drug, and was approved for marketing in the US in 1996 and the EU in 1999. However, sodium phenylbutyrate has an aversive odor and taste, which may compromise patients’ compliance, and many patients have reported difficulty in taking this drug. Sodium phenylbutyrate granules are a new tasteless and odor-free formulation of sodium phenylbutyrate, which is indicated in the treatment of urea-cycle disorders. This recently developed taste-masked formulation of sodium phenylbutyrate granules was designed to overcome the considerable issues that taste has on adherence to therapy. Several studies have reported the

  13. Deep optical observations of the γ-ray pulsar J0357+3205

    Science.gov (United States)

    Kirichenko, A.; Danilenko, A.; Shibanov, Yu.; Shternin, P.; Zharikov, S.; Zyuzin, D.

    2014-04-01

    Context. A middle-aged radio-quiet pulsar J0357+3205 was discovered in gamma rays with Fermi and later in X-rays with Chandra and XMM-Newton observatories. It produces an unusual thermally emitting pulsar wind nebula that is observed in X-rays. Aims: Deep optical observations were obtained to search for the pulsar optical counterpart and its nebula using the Gran Telescopio Canarias (GTC). Methods: The direct imaging mode in the Sloan g' band was used. Archival X-ray data were reanalysed and compared with the optical data. Results: No pulsar optical counterpart was detected down to g'≥slant 28.1m. No pulsar nebula was identified in the optical either. We confirm early results that the X-ray spectrum of the pulsar consists of a nonthermal power-law component of the pulsar magnetospheric origin dominating at high energies and a soft thermal component from the neutron star surface. Using magnetised, partially ionised hydrogen atmosphere models in X-ray spectral fits, we found that the thermal component can come from the entire surface of the cooling neutron star with a temperature of 36+8-6 eV, making it one of the coldest among cooling neutron stars known. The surface temperature agrees with the standard neutron star cooling scenario. The optical upper limit does not put any additional constraints on the thermal component, however it does imply a strong spectral break for the nonthermal component between the optical and X-rays as is observed in other middle-aged pulsars. Conclusions: The thermal emission from the entire surface of the neutron star very likely dominates the nonthermal emission in the UV range. Observations of PSR J0357+3205 in this range are promising to put more stringent constraints on its thermal properties. Based on observations made with the Gran Telescopio Canarias (GTC), instaled in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, in the island of La Palma under Programme GTC3-12BMEX

  14. HOMENAJE PÓSTUMO A UN GRAN COLOMBIANO.

    Directory of Open Access Journals (Sweden)

    Jaime Eraso López

    2016-12-01

    Full Text Available

    HOMENAJE PÓSTUMO A UN GRAN COLOMBIANO

    Jaime Eraso López

    A la edad de 99 años, falleció la semana pasada en Bogotá el Académico y maestro de la medicina Dr. Hernando Groot Liévano conocido por ser un científico e investigador de talla continental, por lo que la comunidad nacional e internacional han lamentado profundamente este aciago acontecimiento. Como su labor de investigador estuvo ligada al departamento de Nariño cuando permaneció dos meses en la ciudad de Pasto en 1939 con el fin de descubrir la causa de una epidemia que mató a más de 8.000 personas en la zona del Guáitara, en compañía de otros tres médicos que se desplazaron desde Bogotá, mientras se desempeñaba como Jefe del Laboratorio de Salud Pública el Dr. Luis Eduardo Martínez, es justo rendirle un homenaje póstumo que permita, además, trazar en pocas líneas la semblanza de su incomparable trayectoria.

    La epidemia a la que me referí, de carácter infecciosa, fue el resultado de la acción de una bacteria llamada Bartonella, de ahí el nombre de bartonelosis o enfermedad de Carrión, que se expande a través de un mosquito transmisor y produce la destrucción de los glóbulos rojos de la sangre conllevando a la aparición de una anemia severa y a la ulterior muerte. Su descubrimiento tuvo lugar en Sandoná cuando se logró identificar la bacteria bajo el lente del microscopio; bacteria parecida al parásito del paludismo.

    Hace 7 años nos visitó nuevamente el Dr. Groot y durante su magistral conferencia detalló los hallazgos de su investigación con gran dominio del tema, cualidad propia de una inteligencia superior, sin olvidar los nombres de cada uno de los médicos de la época. Aquel evento fue ocasión para que los académicos pastusos le hiciéramos entrega de una hermosa placa a madera condecorativa de agradecimiento por su amor a Nariño y como muestra de su gran calidad humana, cuando se

  15. L'esperienza della Grande Guerra nell'autobiografia femminile in Gran Bretagna

    OpenAIRE

    Porzio, Barbara

    2009-01-01

    Il presente lavoro è incentrato sull’analisi delle autobiografie femminili della prima guerra mondiale pubblicate in Gran Bretagna negli anni Trenta del secolo scorso. Nell’introduzione, dopo una breve riflessione di carattere teorico e metodologico sul genere autobiografico ed alcune considerazioni sul contesto storico-culturale in cui nacquero tali opere, viene rintracciata una griglia di argomentazioni retoriche ricorrenti che se da un lato non consentono di ipotizzare l’esistenza di un so...

  16. (Re)Bordering the Civic Imaginary: Rhetoric, Hybridity, and Citizenship in "La Gran Marcha"

    Science.gov (United States)

    Cisneros, Josue David

    2011-01-01

    Though the drive to limit US citizenship often takes shape through the symbolic and material exclusion of "aliens," immigrants also engage in rhetorical struggles over the limits of the US civic imaginary. This essay examines one such challenge to the bordering logics of US citizenship--"La Gran Marcha", one of the largest…

  17. Monopole, astrophysics and cosmic ray observatory at Gran Sasso

    International Nuclear Information System (INIS)

    Demarzo, C.; Enriquez, O.; Giglietto, N.

    1985-01-01

    A new large area detector, MACRO was approved for installation at the Gran Sasso Laboratory in Italy. The detector will be dedicated to the study of naturally penetrating radiation deep underground. It is designed with the general philosophy of covering the largest possible area with a detector having both sufficient built-in redundancy and use of complementary techniques to study very rare phenomena. The detector capabilities will include monopole investigations significantly below the Parker bound; astrophysics studies of very high energy gamma ray and neutrino point sources; cosmic ray measurements of single and multimuons; and the general observation of rare new forms of matter in the cosmic rays

  18. Monopole, astrophysics and cosmic ray observatory at Gran Sasso

    Science.gov (United States)

    Demarzo, C.; Enriquez, O.; Giglietto, N.; Posa, F.; Attolini, M.; Baldetti, F.; Giacomelli, G.; Grianti, F.; Margiotta, A.; Serra, P.

    1985-01-01

    A new large area detector, MACRO was approved for installation at the Gran Sasso Laboratory in Italy. The detector will be dedicated to the study of naturally penetrating radiation deep underground. It is designed with the general philosophy of covering the largest possible area with a detector having both sufficient built-in redundancy and use of complementary techniques to study very rare phenomena. The detector capabilities will include monopole investigations significantly below the Parker bound; astrophysics studies of very high energy gamma ray and neutrino point sources; cosmic ray measurements of single and multimuons; and the general observation of rare new forms of matter in the cosmic rays.

  19. Surface geothermal exploration in the Canary Islands by means of soil CO_{2} degassing surveys

    Science.gov (United States)

    García-Merino, Marta; Rodríguez, Fátima; Padrón, Eleazar; Melián, Gladys; Asensio-Ramos, María; Barrancos, José; Hernández, Pedro A.; Pérez, Nemesio M.

    2017-04-01

    With the exception of the Teide fumaroles, there is not any evidence of hydrothermal fluid discharges in the surficial environment of the Canary Islands, the only Spanish territory with potential high enthalpy geothermal resources. Here we show the results of several diffuse CO2 degassing surveys carried out at five mining licenses in Tenerife and Gran Canaria with the aim of sorting the possible geothermal potential of these five mining licenses. The primary objective of the study was to reduce the uncertainty inherent to the selection of the areas with highest geothermal potential for future exploration works. The yardstick used to classify the different areas was the contribution of volcano-hydrothermal CO2 in the diffuse CO2 degassing at each study area. Several hundreds of measurements of diffuse CO2 emission, soil CO2 concentration and isotopic composition were performed at each mining license. Based in three different endmembers (biogenic, atmospheric and deep-seated CO2) with different CO2 concentrations (100, 0.04 and 100%, respectively) and isotopic compositions (-24, -8 and -3 per mil vs. VPDB respectively) a mass balance to distinguish the different contribution of each endmember in the soil CO2 at each sampling site was made. The percentage of the volcano-hydrothermal contribution in the current diffuse CO2 degassing was in the range 0-19%. The Abeque mining license, that comprises part of the north-west volcanic rift of Tenerife, seemed to show the highest geothermal potential, with an average of 19% of CO2 being released from deep sources, followed by Atidama (south east of Gran Canaria) and Garehagua (southern volcanic rift of Tenerife), with 17% and 12% respectively.

  20. Critical appraisal of rituximab in the maintenance treatment of advanced follicular lymphoma

    Directory of Open Access Journals (Sweden)

    Aguiar-Bujanda D

    2015-10-01

    Full Text Available David Aguiar-Bujanda, María Jesús Blanco-Sánchez, María Hernández-Sosa, Saray Galván-Ruíz, Samuel Hernández-Sarmiento Department of Medical Oncology, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain Abstract: Rituximab is an IgG1, chimeric monoclonal antibody specifically designed to recognize the CD20 antigen expressed on the surface of normal and malignant B-lymphocytes, from the B-cell precursor to the mature B-cells of the germinal center, and by most neoplasms derived from B-cells. After 2 decades of use, rituximab is firmly positioned in the treatment of follicular lymphoma (FL, both in the front line and in the relapsing disease, improving previous results by including it in classical chemotherapy regimens. However, the pharmacology of rituximab continues to generate controversial issues especially regarding the mechanisms of action in vivo. The contribution of rituximab as a maintenance treatment in FL has been significant progress in the management of this disease without an increase in side effects or a decrease in the quality of life of patients. With the widespread use of rituximab, there are new security alerts and side effects not previously detected in the pivotal trials that clinicians should learn to recognize and manage. In this article, we will review the pharmacokinetics and pharmacodynamics of rituximab, the management issues in the treatment of advanced FL focusing on maintenance rituximab, its long-term efficacy and safety profile, and its effect on the quality of life. Keywords: follicular lymphoma, long-term efficacy, maintenance, rituximab, toxicity

  1. ¿Por qué Gran Bretaña? (Revolución Industrial y Primera Globalización)

    OpenAIRE

    Monedero Rivera, Juan

    2016-01-01

    ¿Por qué la Revolución Industrial surge en Gran Bretaña? ¿Qué papel desempeñó la economía británica durante la primera globalización? Estos procesos históricos han sido objeto de estudio durante décadas y a día de hoy aún podemos observar sus consecuencias. Este proyecto analizará, otorgando una especial importancia al papel del comercio internacional, las causas que llevaron a Gran Bretaña a ser el líder de la economía mundial durante los períodos estudiados. Se analizarán ambos procesos por...

  2. Large-band seismic characterization of the INFN Gran Sasso National Laboratory

    Science.gov (United States)

    Acernese, F.; Canonico, R.; De Rosa, R.; Giordano, G.; Romano, R.; Barone, F.

    2013-04-01

    In this paper we present the scientific data recorded by tunable mechanical monolithic horizontal seismometers located in the Gran Sasso National Laboratory of the INFN, within thermally insulating enclosures onto concrete slabs connected to the bedrock. The main goals of this long-term large-band measurements are for the seismic characterization of the site in the frequency band 10-6÷10Hz and the acquisition of all the relevant information for the optimization of the sensors.

  3. Propuesta de rutas de geoturismo urbano en Icod de Los Vinos (Tenerife, Islas Canarias, España

    Directory of Open Access Journals (Sweden)

    Javier Dóniz-Páez

    2016-01-01

    Full Text Available En los destinos maduros de sol y playa los nuevos productos y experiencias turísticas son una realidad palpable. El geoturismo urbano se presenta como un producto de turismo muy novedoso que consiste en explotar turísticamente el relieve presente dentro de las ciudades. Este artículo propone diferentes rutas de geoturismo urbano en el municipio de Icod de Los Vinos (Tenerife, Canarias, España a partir del inventario, caracterización y valoración del patrimonio geomorfológico presente en los diferentes geomorfositios y en el patrimonio cultural tangible inmueble. Se han seleccionado doce recursos naturales y culturales vinculados con la geodiversidad de Icod de los Vinos. En función de la variedad de recursos inventariados y de las posibilidades que ofrece esta nueva modalidad de ocio turístico, los itinerarios propuestos responden a tres rasgos principales: el tiempo geológico, la temática geológica y geomorfológica, y la espacial.

  4. La Gran Logia Bonaerense y su preocupación por la educación: Una de las fuentes del rito nacional español

    Directory of Open Access Journals (Sweden)

    Gabriel Darrigran Algaba

    2017-01-01

    Full Text Available Este texto pretende exponer una primera aproximación al proyecto pedagógico de una asociación masónica argentina poco conocida, surgida en un momento del siglo XIX de gran influencia del positivismo científico. La Gran Logia Bonaerense, uno de los productos de una ciudad planificada para ser una “ciudad modelo”, que desde su creación buscó posicionarse como una alta casa de estudios, instruyendo a la clase obrera y a la media burguesía. Asimismo, se demuestra cómo, a través de las redes masónicas atlánticas, sus doctrinas lograron influir en España y cambiar parte de la estructura de la Gran Logia Simbólica Española y ser una de las fuentes del rito del Gran Oriente Ibérico.

  5. Massive stars in the Sagittarius Dwarf Irregular Galaxy

    Science.gov (United States)

    Garcia, Miriam

    2018-02-01

    Low metallicity massive stars hold the key to interpret numerous processes in the past Universe including re-ionization, starburst galaxies, high-redshift supernovae, and γ-ray bursts. The Sagittarius Dwarf Irregular Galaxy [SagDIG, 12+log(O/H) = 7.37] represents an important landmark in the quest for analogues accessible with 10-m class telescopes. This Letter presents low-resolution spectroscopy executed with the Gran Telescopio Canarias that confirms that SagDIG hosts massive stars. The observations unveiled three OBA-type stars and one red supergiant candidate. Pending confirmation from high-resolution follow-up studies, these could be the most metal-poor massive stars of the Local Group.

  6. La cultura gastronómica p'urhépecha como un gran activo turístico en Michoacán

    Directory of Open Access Journals (Sweden)

    Marco Antoniox Serrato García

    2011-01-01

    Full Text Available En México existe un gran número comunidades indígenas de origen prehispánico. En el estado de Michoacán, el cual posee una gran riqueza cultural, destaca la cultura p'urhépecha. Por la misma riqueza que posee el estado, gran parte de su economía se basa en el turismo tanto nacional como internacional. Por esta razón se realizó una serie de estudios para aprovechar en una mayor medida esta situación, teniendo como resultado la puesta en acción del evento denominado "Encuentro de cocina tradicional de Michoacán" que se ha venido realizando cada año desde el 2004. En este artículo se muestra la justifi cación de dichos estudios, así como las primeras conclusiones de los mismos y los resultados del evento gastronómico.

  7. J0023+0307: A Mega Metal-poor Dwarf Star from SDSS/BOSS

    Science.gov (United States)

    Aguado, David S.; Allende Prieto, Carlos; González Hernández, Jonay I.; Rebolo, Rafael

    2018-02-01

    Only a handful of stars have been identified with an iron abundance [Fe/H] support from theoretical modeling, as the result of a top-heavy initial mass function. With zero or very low metal abundance limiting radiative cooling, the formation of low-mass stars could be inhibited. Currently, the star SDSS J1029+1729 sets the potential metallicity threshold for the formation of low-mass stars at {log}Z/{Z}ȯ ∼ -5. In our quest to push down the metallicity threshold we have identified SDSS J0023+0307, a primitive star with T eff = 6188 ± 84 K, and {log}g=4.9+/- 0.5, an upper limit [Fe/H] < ‑6.6, and a carbon abundance A(C) < 6.3. We find J0023+0307 to be one of the two most iron-poor stars known, and it exhibits less carbon that most of the stars at [Fe/H] < ‑5. Based on observations made with William Herschel Telescope (WHT) and the Gran Telescopio de Canarias (GTC), at the Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, in La Palma.

  8. Neutrino astrophysics with the MACRO detector in the Gran Sasso underground laboratory

    International Nuclear Information System (INIS)

    Ronga, F.

    1998-01-01

    We present the results of a search for neutrino emission from celestial objects and of a search for coincidences with gamma ray bursts. We have computed flux limits for WIMPS coming from the center of the Earth and of the Sun. For this search we used 605 upward-going muons produced by neutrino interactions in the rock below the MACRO detector in the underground Gran Sasso Laboratory. (orig.)

  9. Amplitude modulation of sexy phrases is salient for song attractiveness in female canaries (Serinus canaria).

    Science.gov (United States)

    Pasteau, Magali; Ung, Davy; Kreutzer, Michel; Aubin, Thierry

    2012-07-01

    Song discrimination and recognition in songbird species have usually been studied by measuring responses to song playbacks. In female canaries, Serinus canaria, copulation solicitation displays (CSDs) are used as an index of female preferences, which are related to song recognition. Despite the fact that many studies underline the role of song syntax in this species, we observed that short segments of songs (a few seconds long) are enough for females to discriminate between conspecific and heterospecific songs, whereas such a short duration is not sufficient to identify the syntax rules. This suggests that other cues are salient for song recognition. In this experiment, we investigated the influence of amplitude modulation (AM) on the responses (CSDs) of female canaries to song playbacks. We used two groups of females: (1) raised in acoustic isolation and (2) raised in normal conditions. When adult, we tested their preferences for sexy phrases with different AMs. We broadcast three types of stimuli: (1) songs with natural canary AM, (2) songs with AM removed, or (3) song with wren Troglodytes troglodytes AM. Results indicate that female canaries prefer and have predispositions for a song type with the natural canary AM. Thus, this acoustic parameter is a salient cue for song attractiveness.

  10. Prescribed Burning and Clear-Cutting Effects on Understory Vegetation in a Pinus canariensis Stand (Gran Canaria

    Directory of Open Access Journals (Sweden)

    José Ramón Arévalo

    2014-01-01

    Full Text Available Prescribed fires are a powerful tool for reducing fire hazards by decreasing amounts of fuel. The main objective is to analyze the effects of prescribed burning on the understory vegetation composition as well as on the soil characteristics of a reforested stand of Pinus canariensis. The study attempts to identify the effects of the preburning treatment of cutting understory vegetation on the floristic parameters of the vegetation community. This study was carried out for two years following a prescribed fire in a Canarian pine stand. Cutting and burning treatment affected species composition and increased diversity. Burnt and cut plots were characterized by a diverse array of herbaceous species and by a lower abundance of Teline microphylla (endemic legume, although burning apparently induced its germination. Cut treatment was more consistently differentiated from the control plots than burnt treatment. Soil K decreased after both treatments, pH slightly decreased after cutting, while P and Ca increased after fire. From an ecological point of view, prescribed burning is a better management practice than cutting the woody species of the understory. However, long-term studies would be necessary to evaluate the effects of fire intensity, season and frequency in which the prescribed burning is applied.

  11. Selection of some meteorological fluctuations to create forecasting models of NO2 in Jinamar (Gran Canarias)

    International Nuclear Information System (INIS)

    Vera Castellano, A.; Lopez Cancio, J.; Corujo Jimenez, J.

    1997-01-01

    The study of meteorological fluctuations that have been reported in urban and semi urban zones has reached in the last years an increasing importance to environmental pollution researches because its knowledge permits the elaboration of empirical models able to predict periods of potential pollution in these zones. In this work, it has been made use of the data on concentrations of NO 2 supplied by an chemiluminescent analyser and the meteorological data provided by a meteorological station located in the surroundings of the analyser, in order to determine the variables that have taken part in the elaboration of a forecasting model of this pollutant in Jinamar Valley. (Author) 15 refs

  12. Edificio de apartamentos Jardín del Atlántico Gran Canaria – España

    Directory of Open Access Journals (Sweden)

    López Díaz, Luis

    1978-11-01

    Full Text Available This building is located in the Playa del Inglés, the central core of the Maspalomas tourist resort, and was built as an answer to the urgent need for accommodations imposed by the overwhelming tourist influx arriving in increasingly larger and numerous charter flights. The building (containing 334 units in its five stories, all of the same type and identically oriented is provided with all amenities and facilities normally found in the best of hotels, such as two bars, a restaurant, a shopping area with several stores, social rooms, dance hall, gymnasium, sauna bath, tennis courts, four large swimming pools, children's playground, beauty parlour and barber shop, large carpark, 15,000 m2 of landscaped area, etc., offering occupants a healthy, enjoyable and convenient environment.

    En la Playa del Inglés, núcleo central del complejo turístico de Maspalomas, se ha levantado este edificio de apartamentos como respuesta a la imperiosa necesidad hotelera, motivada por la masiva afluencia de turistas que se desplazan en los, cada vez más grandes y numerosos, vuelos charter. El edificio, que en sus cinco plantas de altura distribuye 334 apartamentos —todos ellos del mismo tipo y con idéntica orientación—, está dotado de todas las comodidades y atracciones que pudiera tener el más completo de los hoteles, tales como: dos bares, restaurante, zona comercial con diversas tiendas, salones sociales, sala de baile, gimnasio, sauna, cancha de tenis, cuatro grandes piscinas, parque infantil, peluquerías de señoras y caballeros, amplísimo aparcamiento para coches, 15.000 m2 de jardín, etc., que proporcionan a sus ocupantes una vida sana, amena y confortable.

  13. Prescribed burning and clear-cutting effects on understory vegetation in a Pinus canariensis stand (Gran Canaria).

    Science.gov (United States)

    Arévalo, José Ramón; Fernández-Lugo, Silvia; García-Domínguez, Celia; Naranjo-Cigala, Agustín; Grillo, Federico; Calvo, Leonor

    2014-01-01

    Prescribed fires are a powerful tool for reducing fire hazards by decreasing amounts of fuel. The main objective is to analyze the effects of prescribed burning on the understory vegetation composition as well as on the soil characteristics of a reforested stand of Pinus canariensis. The study attempts to identify the effects of the preburning treatment of cutting understory vegetation on the floristic parameters of the vegetation community. This study was carried out for two years following a prescribed fire in a Canarian pine stand. Cutting and burning treatment affected species composition and increased diversity. Burnt and cut plots were characterized by a diverse array of herbaceous species and by a lower abundance of Teline microphylla (endemic legume), although burning apparently induced its germination. Cut treatment was more consistently differentiated from the control plots than burnt treatment. Soil K decreased after both treatments, pH slightly decreased after cutting, while P and Ca increased after fire. From an ecological point of view, prescribed burning is a better management practice than cutting the woody species of the understory. However, long-term studies would be necessary to evaluate the effects of fire intensity, season and frequency in which the prescribed burning is applied.

  14. Las actividades agroambientales en Canarias ante los retos de futuro

    Directory of Open Access Journals (Sweden)

    Ramón Díaz Hernández

    2013-10-01

    Full Text Available Las actividades primarias en Canarias, y en especial, la agricultura, presentan una situación de crisis que amenaza con aumentar el abandono de fincas, la reducción de la producción y la pérdida de población rural. Los valores económicos, sociales, ambientales y culturales que caracterizan a estas actividades aconsejan una apuesta más decidida por el mantenimiento del sector, para lo que es necesario replantear en muchas zonas el desarrollo agrario integral vinculándolo a la conservación y recuperación ambiental y cultural, dentro de una concepción de desarrollo sostenible. Pues bien, en este artículo, partiendo de la exposición del valor que tiene la actividad agraria en las Islas, se describe su problemática actual y se apuntan sus oportunidades de desarrollo. Se concluye precisándose, a partir de los instrumentos de intervención existentes, objetivos globales, algunas recomendaciones estratégicas generales y propuestas de intervención que podrían ser tenidos en cuenta.Primary activities in the Canary Islands, and especially agriculture, are undergoing a crisis that threatens to continue to promote a move away from the countryside, a reduction in production and rural de-population. The economic, social, environmental and cultural values that characterise these activities indicate a need for more decisive support for maintaining this sector, making an integral development of farming necessary in many areas, linked to environmental and cultural conservation and recovery, as part of a sustainable development approach to the problem. With the value of farming activities as a starting point, this article describes the current problems and identifies the opportunities for development. The articles concludes by establishing global objectives, based on existing intervention instruments, some general strategic recommendations and proposals for intervention that could be taken on board.

  15. La Gran Vía y la arquitectura española contemporánea

    Directory of Open Access Journals (Sweden)

    Jesús López Díaz

    2011-01-01

    Full Text Available El centenario de la Gran Vía madrileña se ha convertido en la oportunidad de conocer con mayor detalle la mayoría de los elementos más significativos, desde el punto de vista de la arquitectura, que jalonan esta arteria, producto de la última gran reforma interior acometida en la ciudad de Madrid. En apenas veinte años, se yerguen los últimos ejemplos de la arquitectura ecléctica historicista, para pasar de un salto como pocas veces en nuestra historiografía arquitectónica, a la construcción del posiblemente mejor ejemplo de arquitectura racionalista, el Edificio Capitol, acompañado de algunos destellos de arquitectura moderna que, tras el traumático paréntesis de la Guerra Civil y la primera posguerra, se verán acompañados por elementos singulares de una arquitectura en búsqueda de un camino sin sentido, promovida por el final de una generación de arquitectos. Esta sensación de aceleración y freno se liga a algunos de los nombres más destacados de la arquitectura española de los primeros dos tercios del siglo XX: Palacios, Anasagasti, Gutiérrez Soto, Fernández-Shaw, Muguruza, Feduchi o Eced entre otros. Este artículo pretende analizar el papel jugado por la Gran Vía madrileña en cuanto a escenario de transformación de nuestra arquitectura contemporánea, así como su papel de faro hasta el despegar que se produce con los nuevos arquitectos cuyo talento es reconocido desde finales de los años 50 hasta nuestros días. El nuevo lenguaje arquitectónico surgido en las décadas de los años veinte y treinta, y mostrado como en pocos entornos en la Gran Vía, se liga necesariamente a elementos de transformación social, económica y cultural que se traducen en nuevas necesidades y nuevas tipologías edificatorias, en nuevos usos derivados de demandas y transformaciones que cambian nuestra Historia contemporánea, acompañado de un nuevo lenguaje arquitectónico, que por un breve momento, nos situó a la par de las nuevas

  16. Gran Torino's Hmong Lead Bee Vang on Film, Race, and Masculinity: Conversations with Louisa Schein

    Directory of Open Access Journals (Sweden)

    Louisa Schein

    2010-01-01

    Full Text Available Bee Vang, of Minneapolis, played the Hmong lead Thao Vang Lor in Clint Eastwood's 2008 Gran Torino. He was sixteen when he shot the film and had no acting training. For 27 days on location in urban Detroit he played before a Hollywood crew opposite an icon of the filmindustry doing multiple takes of each scene and camera angle. The shoot was full of unexpected twists and turns some of which he recounts in these interchanges with Hmong media expert Louisa Schein of the Departments of Anthropology and Women's and Gender Studies at Rutgers University. Over several conversations, condensed here, Vang and Schein talk about Gran Torino, about acting and film critique, about immigrants and stereotypes, about masculinity and sexuality, and about Vang's vision for what needs to change to address problems of race and inequality in and beyond media worlds.

  17. Measurement of the decoherence function with the MACRO detector at Gran Sasso

    International Nuclear Information System (INIS)

    Ahlen, S.; Ambrosio, M.; Antolini, R.; Auriemma, G.; Baldini, A.; Barbarino, G.C.; Barish, B.C.; Battistoni, G.; Bellotti, R.; Bemporad, C.; Bernardini, P.; Bilokon, H.; Bisi, V.; Bloise, C.; Bussino, S.; Cafagna, F.; Calicchio, M.; Campana, D.; Campana, P.; Carboni, M.; Cecchini, S.; Cei, F.; Chiarella, V.; Chiera, C.; Cobis, A.; Cormack, R.; Corona, A.; Coutu, S.; DeCataldo, G.; Dekhussi, H.; DeMarzo, C.; De Vincenzi, M.; Di Credico, A.; Diehl, E.; Erriquez, O.; Favuzzi, C.; Ficenec, D.; Forti, C.; Foti, L.; Fusco, P.; Giacomelli, G.; Giannini, G.; Giglietto, N.; Giubellino, P.; Grassi, M.; Green, P.; Grillo, A.; Guarino, F.; Gustavino, C.; Habig, A.; Heinz, R.; Hong, J.T.; Iarocci, E.; Katsavounidis, E.; Kearns, E.; Klein, S.; Kyriazopoulou, S.; Lamanna, E.; Lane, C.; Lee, C.; Levin, D.S.; Lipari, P.; Liu, G.; Liu, R.; Longo, M.J.; Ludlam, G.; Mancarella, G.; Mandrioli, G.; Margiotta-Neri, A.; Marin, A.; Marini, A.; Martello, D.; Marzari Chiesa, A.; Masera, M.; Matteuzzi, P.; Michael, D.G.; Miller, L.; Monacelli, P.; Monteno, M.; Mufson, S.; Musser, J.; Nutter, S.; Okada, C.; Osteria, G.; Palamara, O.; Parlati, S.; Patera, V.; Patrizii, L.; Pazzi, R.; Peck, C.W.; Petrakis, J.; Petrera, S.; Pignatano, N.D.; Pistilli, P.; Predieri, F.; Ramello, L.; Reynoldson, J.; Ronga, F.; Rosa, G.; Satriano, C.; Satta, L.; Scapparone, E.; Scholberg, K.; Sciubba, A.; Serra Lugaresi, P.; Severi, M.; Sitta, M.; Spinelli, P.; Spinetti, M.; Spurio, M.; Steele, J.; Steinberg, R.; Stone, J.L.; Sulak, L.R.; Surdo, A.; Tarle, G.; Togo, V.; Valente, V.; Walter, C.W.; Webb, R.; Worstell, W.

    1992-01-01

    A measurement of the underground muon decoherence function has been performed using the multiple muon events collected by the MACRO detector at the Gran Sasso National Laboratory. A detector-independent analysis is presented for different zenith regions and rock depths; this allows direct comparison with any model of hadronic interactions. The measured decoherence function is compared with the predictions of a Monte Carlo simulation based on data taken by recent collider experiments

  18. Development of spatially diverse and complex dune-field patterns: Gran Desierto Dune Field, Sonora, Mexico

    Science.gov (United States)

    Beveridge, C.; Kocurek, G.; Ewing, R.C.; Lancaster, N.; Morthekai, P.; Singhvi, A.K.; Mahan, S.A.

    2006-01-01

    The pattern of dunes within the Gran Desierto of Sonora, Mexico, is both spatially diverse and complex. Identification of the pattern components from remote-sensing images, combined with statistical analysis of their measured parameters demonstrate that the composite pattern consists of separate populations of simple dune patterns. Age-bracketing by optically stimulated luminescence (OSL) indicates that the simple patterns represent relatively short-lived aeolian constructional events since ???25 ka. The simple dune patterns consist of: (i) late Pleistocene relict linear dunes; (ii) degraded crescentic dunes formed at ???12 ka; (iii) early Holocene western crescentic dunes; (iv) eastern crescentic dunes emplaced at ???7 ka; and (v) star dunes formed during the last 3 ka. Recognition of the simple patterns and their ages allows for the geomorphic backstripping of the composite pattern. Palaeowind reconstructions, based upon the rule of gross bedform-normal transport, are largely in agreement with regional proxy data. The sediment state over time for the Gran Desierto is one in which the sediment supply for aeolian constructional events is derived from previously stored sediment (Ancestral Colorado River sediment), and contemporaneous influx from the lower Colorado River valley and coastal influx from the Bahia del Adair inlet. Aeolian constructional events are triggered by climatic shifts to greater aridity, changes in the wind regime, and the development of a sediment supply. The rate of geomorphic change within the Gran Desierto is significantly greater than the rate of subsidence and burial of the accumulation surface upon which it rests. ?? 2006 The Authors. Journal compilation 2006 International Association of Sedimentologists.

  19. CXA La Paloma, LLC: UIC Class I Permit No.CA10710001

    Science.gov (United States)

    Documents related to La Paloma Generating Company, LLC's (LPGC) application for a UIC permit renewal (of permit #CA199000001) to operate a Class I injection well facility to dispose of non-hazardous wastewater from the La Paloma Generating Plant.

  20. La Supervivencia del Gran Periodismo Financiero

    Directory of Open Access Journals (Sweden)

    Calvo Gutiérrez, Elvira

    2011-06-01

    Full Text Available En español: Tradicionalmente, el periodismo económico internacional ha tenido en los grupos anglosajones Dow Jones (EE.UU. y Pearson (Gran Bretaña, editores de The Wall Street y Financial Times respectivamente, sus grandes referentes mundiales. Sin embargo, el nuevo siglo ha traído enormes convulsiones al sector de las que no se han librado ni los periódicos de élite ni las grandes agencias especializadas en información económica como Reuters, Thomson o Bloomberg. A la batalla en Internet, se suman la expansión del poder informativo económico y los cambios de mentalidad tanto de las empresas como de las audiencias. Todo ello ha derivado en una guerra encarnizada, protagonizada por los grandes líderes que, con más de un siglo de tradición algunos, han sido objeto de ventas o fusiones, operaciones financieras imprescindibles para poder adaptarse a los nuevos tiempos. El objetivo de este artículo es analizar la trayectoria del gran periodismo económico, con especial dedicación a dos frentes: uno, conocer cómo se están posicionando estos periódicos de élite en la red; otro, la disyuntiva entre continuar siendo un periodismo de calidad, riguroso, cosmopolita y caro de mantener, o cambiar hacia un periodismo ideológico, truculento o amarillista que, como en otras especialidades, también se ha extendido entre el periodismo financiero. In english: Traditionally, the economic international journalism has had in the Anglo-Saxon groups Dow Jones (USA and Pearson (Great Britain, publishers of The Wall Street and Financial Times respectively, his big world models. Nevertheless, the new century has brought enormous convulsions to the sector, to the newspapaers of elite and big agencies specialized in economic information as Reuters, Thomson or Bloomberg. To the battle in Internet, there add the expansion of the informative economic power and the changes of mentality of the companies and of the audiences. All this has derived in a fierce

  1. UNO STUDIO SUL TERREMOTO DEL GRAN SASSO D' ITALIA DEL 5 SETTEMBRE 1950

    Directory of Open Access Journals (Sweden)

    L. Marcelli

    1951-06-01

    Full Text Available Nel presente lavoro si espongono i risultati della prima parte diuno studio sul terremoto del Gran Sasso d'Italia avvenuto il 5 settembre10.50. Si riportano le notizie macrosismiche, e viene tracciatala rete delle isosiste. Calcolata la magnitudo, l'energia, l'epicentro incoordinate ortogonali e geografiche, le velocità delle Pg, Pn, Sg, Sncon le relative dromocrone, il tempo origine,

  2. Determination of free acid in U(VI)-Al(III) solution by Gran plot titration

    International Nuclear Information System (INIS)

    Suh, Moo Yul; Lee, Chang Heon; Sohn, Se Chul; Kim, Jung Suk; Kim, Won Ho; Eom, Tae Yoon

    1999-01-01

    The determination method of free acid in spent U-Al nuclear fuel solutions by Gran plot titration was described. Effect of U(VI) and Al(III) on the alkalimetric titration of nitric acid was investigation in oxalate complexing media as well as in noncomplexing media. Positive biases were observed in both titration media when the end-point was estimated by the Gran plot method. It was found that the cause of the bias was U(VI) in the oxalate complexing media, but Al(III) in the noncomplexing media. The relative error was less than 1% in the titration of 0.1 M HNO 3 at a U(VI):Al(III):H + mole ratio of up to 2:12:1 as long as the pH of the oxalate titration media was sustained to be below 5.0 at the beginning of titration. The method was successfully applied to the determination of nitric acid in a solution of HANARO reactor fuel with U:Al mole ratio of 1:6

  3. Vertical muon intensity measured with MACRO at the Gran Sasso laboratory

    International Nuclear Information System (INIS)

    Ambrosio, M.; Antolini, R.; Auriemma, G.; Baker, R.; Baldini, A.; Barbarino, G.C.; Barish, B.C.; Battistoni, G.; Bellotti, R.; Bemporad, C.; Bernardini, P.; Bilokon, H.; Bisi, V.; Bloise, C.; Bower, C.; Bussino, S.; Cafagna, F.; Calicchio, M.; Campana, D.; Carboni, M.; Castellano, M.; Cecchini, S.; Cei, F.; Celio, P.; Chiarella, V.; Corona, A.; Coutu, S.; De Cataldo, G.; Dekhissi, H.; De Marzo, C.; De Mitri, I.; De Vincenzi, M.; Di Credico, A.; Erriquez, O.; Favuzzi, C.; Forti, C.; Fusco, P.; Giacomelli, G.; Giannini, G.; Giglietto, N.; Grassi, M.; Grillo, A.; Guarino, F.; Guarnaccia, P.; Gustavino, C.; Habig, A.; Hanson, K.; Hawthorne, A.; Heinz, R.; Hong, J.T.; Iarocci, E.; Katsavounidis, E.; Kearns, E.; Kyriazopoulou, S.; Lamanna, E.; Lane, C.; Levin, D.S.; Lipari, P.; Liu, R.; Longley, N.P.; Longo, M.J.; Lu, Y.; Ludlam, G.; Mancarella, G.; Mandrioli, G.; Margiotta-Neri, A.; Marini, A.; Martello, D.; Marzari-Chiesa, A.; Mazziotta, M.N.; Michael, D.G.; Mikheyev, S.; Miller, L.; Mittelbrunn, M.; Monacelli, P.; Montaruli, T.; Monteno, M.; Mufson, S.; Musser, J.; Nicolo, D.; Nolty, R.; Okada, C.; Orth, C.; Osteria, G.; Palamara, O.; Parlati, S.; Patera, V.; Patrizii, L.; Pazzi, R.; Peck, C.W.; Petrera, S.; Pignatano, N.D.; Pistilli, P.; Popa, V.; Raino, A.; Reynoldson, J.; Ronga, F.; Sanzgiri, A.; Sartogo, F.; Satriano, C.; Satta, L.; Scapparone, E.; Scholberg, K.; Sciubba, A.; Serra-Lugaresi, P.; Severi, M.; Sitta, M.; Spinelli, P.; Spinetti, M.; Spurio, M.; Steinberg, R.; Stone, J.L.; Sulak, L.R.; Surdo, A.; Tarle, G.; Tassoni, F.; Togo, V.; Valente, V.; Walter, C.W.; Webb, R.

    1995-01-01

    The vertical underground muon intensity has been measured in the slant depth range 3200--7000 hg cm -2 (standard rock) with the completed lower part of the MACRO detector at the Gran Sasso laboratory, using a large sample of data. These observations are used to compute the surface muon flux and the primary ''all-nucleon'' spectrum. An analysis of systematic uncertainties introduced by the interaction models in the atmosphere and the underground propagation of muons is presented. A comparison of our results with published data is also presented

  4. Una manera de nombrar el deseo en Toda esa gran verdad

    OpenAIRE

    List Reyes, Mauricio

    2011-01-01

    Este artículo analiza la novela Toda esa gran verdad (2006) del mexicano Eduardo Montagner. El artículo centra su atención en el tema de la sexualidad, particularmente la del personaje principal. La idea es reflexionar acerca de formas disidentes de la sexualidad que rompen con las maneras normativas y que son sancionadas socialmente. En este caso en particular, unas botas de hule son el centro de la atención de un joven de una comunidad rural que dice estar enamorado del dueño de dicho calza...

  5. Operation and performance of the ICARUS-T600 cryogenic plant at Gran Sasso underground Laboratory

    CERN Document Server

    Antonello, M.; Baibussinov, B.; Boffelli, F.; Bubak, A.; Calligarich, E.; Canci, N.; Centro, S.; Cesana, A.; Cieślik, K.; Cline, D.B.; Cocco, A.G.; Dabrowska, A.; Dermenev, A.; Disdier, J.M.; Falcone, A.; Farnese, C.; Fava, A.; Ferrari, A.; Gibin, D.; Gninenko, S.; Guglielmi, A.; Haranczyk, M.; Holeczek, J.; Ivashkin, A.; Kirsanov, M.; Kisiel, J.; Kochanek, I.; Lagoda, J.; Mania, S.; Menegolli, A.; Meng, G.; Montanari, C.; Otwinowski, S.; Picchi, P.; Pietropaolo, F.; Plonski, P.; Rappoldi, A.; Raselli, G.L.; Rossella, M.; Rubbia, C.; Sala, P.R.; Scaramelli, A.; Segreto, E.; Sergiampietri, F.; Stefan, D.; Sulej, R.; Szarska, M.; Terrani, M.; Torti, M.; Varanini, F.; Ventura, S.; Vignoli, C.; Wang, H.G.; Yang, X.; Zalewska, A.; Zani, A.; Zaremba, K.

    2015-12-04

    ICARUS T600 liquid argon time projection chamber is the first large mass electronic detector of a new generation able to combine the imaging capabilities of the old bubble chambers with the excellent calorimetric energy measurement. After the three months demonstration run on surface in Pavia during 2001, the T600 cryogenic plant was significantly revised, in terms of reliability and safety, in view of its long-term operation in an underground environment. The T600 detector was activated in Hall B of the INFN Gran Sasso Laboratory during Spring 2010, where it was operated without interruption for about three years, taking data exposed to the CERN to Gran Sasso long baseline neutrino beam and cosmic rays. In this paper the T600 cryogenic plant is described in detail together with the commissioning procedures that lead to the successful operation of the detector shortly after the end of the filling with liquid Argon. Overall plant performance and stability during the long-term underground operation are discusse...

  6. Niveles, composición y origen del material particulado atmosférico en los sectores Norte y Este de la Península Ibérica y Canarias

    OpenAIRE

    Viana Rodríguez, María del Mar

    2003-01-01

    El creciente interés existente en la actualidad por la investigación en el campo del material particulado atmosférico se debe a la identificación de efectos adversos de este contaminante sobre la salud y los ecosistemas. El principal objetivo de este trabajo de investigación es evaluar los niveles, composición y origen del material particulado atmosférico en tres zonas seleccionadas de España: el País Vasco, el sector mediterráneo (Cataluña y Valencia) y Canarias. Para ello, se pretende obten...

  7. Phenylethanoid Glycosides of Cistanche on menopausal syndrome model in mice

    Directory of Open Access Journals (Sweden)

    Shuo Tian

    2017-05-01

    Full Text Available Cistanche is the traditional and precious Chinese herbal, with two thousand years of use history in China. It has the effect on tonifying kidney, strong supplement to the liver and kidney, and replenishing essence and blood, known as the “desert ginseng”. Here, we explored the mechanism of Phenylethanoid Glycosides of Cistanche (PGC to the model mice of menopausal syndrome, as well as the therapeutic effect and characteristics of PGC to the menopausal syndrome. In this study, KM mice were reproduced by the complete resection of the ovaries on both sides of the back to establish the model mice of menopausal syndrome (MPS, and received distilled water or drugs, respectively. Model mice received distilled water. Mice received 200 mg/(kg day high doses of Phenylethanoid Glycosides of Cistanche (HPGC, and 100 mg/(kg day medium doses of Phenylethanoid Glycosides of Cistanche (MPGC, and 50 mg/(kg day low doses of Phenylethanoid Glycosides of Cistanche (LPGC. After 21 days, it could determine the number of independent activities and the number of standing, the latent period of first entering the dark room, and the electric number. It also calculated the viscera index of uterus, thymus, spleen, measured the levels of estradiol (E2, testosterone (T, luteinizing hormone (LH, and follicle-stimulating hormone (FSH in the serum. Furthermore, it observed the pathological changes of uterus, thymus, spleen and pituitary of mice. The results showed that behavioral indicators: Compared with the model group (MG, HPGC, MPGC, LPGC could increase the independent activities (P < 0.01; HPGC, MPGC could increase the number of standing, the latent period of first entering the dark room, and reduce the electric number (P < 0.01; LPGC could increase the number of standing (P < 0.05; Viscera index: Compared with MG, HPGC, MPGC could increase the viscera index of uterus, thymus, spleen (P < 0.01; LPGC could increase the viscera index of uterus (P < 0

  8. La problemática urbana del Risco de San Juan: análisis y propuestas

    Directory of Open Access Journals (Sweden)

    Silvia Sobral García

    2013-10-01

    Full Text Available En este artículo se aborda el estudio de un sector urbano antiguo de la ciudad de Las Palmas de Gran Canaria que surge en el siglo XVII como un espacio marginal loca­lizado en las laderas que rodeaban el centro histórico, y que todavía hoy se ve afectado de numerosos problemas sociales y urbanos. La metodología utilizada se basa en el análisis de diferentes variables urbanas a través de las cuales podremos descifrar las claves de ocupación de este barrio y, en función de los resultados, buscar soluciones prácticas cen­tradas en reformas, adaptaciones y aprove­chamientos de elementos existentes. Con ello se pretende mejorar la calidad de vida de sus habitantes, y ayudar a que el barrio recobre su lugar dentro del conjunto urbano y salir del olvido y marginación.This article is about the study of an old urban sector of the city of Las Palmas de Gran Canaria, that arises in the XVII century as a marginal space located on the slopes that su­rrounded the historical center, and which still today is affected by many social and urban pro­blems. The methodology used is based on the analysis of different urban variables through which we can discover key facts about occu­pation in this sector, and as a function of those findings, look for practical solutions through reforms, adaptations and the use of existing elements. All of these are intended to improve the quality of life of its inhabitants, and help the neighborhood regain its place within the urban area, as well as to get out of oblivion and marginalization.

  9. The early colonial atlantic world: New insights on the African Diaspora from isotopic and ancient DNA analyses of a multiethnic 15th-17th century burial population from the Canary Islands, Spain.

    Science.gov (United States)

    Santana, Jonathan; Fregel, Rosa; Lightfoot, Emma; Morales, Jacob; Alamón, Martha; Guillén, José; Moreno, Marco; Rodríguez, Amelia

    2016-02-01

    The Canary Islands are considered one of the first places where Atlantic slave plantations with labourers of African origin were established, during the 15th century AD. In Gran Canaria (Canary Islands, Spain), a unique cemetery dated to the 15th and 17th centuries was discovered adjacent to an ancient sugar plantation with funerary practices that could be related to enslaved people. In this article, we investigate the origin and possible birthplace of each individual buried in this cemetery, as well as the identity and social status of these people. The sample consists of 14 individuals radiocarbon dated to the 15th and 17th centuries AD. We have employed several methods, including the analysis of ancient human DNA, stable isotopes, and skeletal markers of physical activity. 1) the funerary practices indicate a set of rituals not previously recorded in the Canary Islands; 2) genetic data show that some people buried in the cemetery could have North-African and sub-Saharan African lineages; 3) isotopic results suggest that some individuals were born outside Gran Canaria; and 4) markers of physical activity show a pattern of labour involving high levels of effort. This set of evidence, along with information from historical sources, suggests that Finca Clavijo was a cemetery for a multiethnic marginalized population that had being likely enslaved. Results also indicate that this population kept practicing non-Christian rituals well into the 17th century. We propose that this was possible because the location of the Canaries, far from mainland Spain and the control of the Spanish Crown, allowed the emergence of a new society with multicultural origins that was more tolerant to foreign rituals and syncretism. © 2015 Wiley Periodicals, Inc.

  10. Distribución en gran escala de los cúmulos globulares en Fornax

    Science.gov (United States)

    Ostrov, P. G.

    Para analizar los cúmulos globulares azules y rojos de NGC 1399 asociados con NGC 1399 en particular, o si los cúmulos azules representaban un sistema asociado con el cúmulo de Fornax en general, se obtuvieron imágenes CCD de gran formato con el telescopio de 4m del CTIO, en las bandas C y T1. Se describe el método empleado y lo encontrado.

  11. The MACRO detector at Gran Sasso

    International Nuclear Information System (INIS)

    Ambrosio, M.; Antolini, R.; Assiro, R.; Auriemma, G.; Bakari, D.; Baldini, A.; Barbarino, G.C.; Barbarito, E.; Barish, B.C.; Battistoni, G.; Becherini, Y.; Bellotti, R.; Bemporad, C.; Bernardini, P.; Bilokon, H.; Bisi, V.; Bloise, C.; Bottazzi, E.; Bower, C.; Brigida, M.; Bussino, S.; Cafagna, F.; Calicchio, M.; Campana, D.; Candela, A.; Carboni, M.; Cecchini, S.; Cei, F.; Ceres, A.; Chiarella, V.; Choudhary, B.C.; Coutu, S.; Cozzi, M.; Creti, P.; De Cataldo, G.; Esposti, L.D.L. Degli; Dekhissi, H.; Marzo, C. De; Mitri, I. De; Derkaoui, J.; Vincenzi, M. De; Credico, A. Di; Ferdinando, D. Di; Diotallevi, R.; Erriquez, O.; Favuzzi, C.; Forti, C.; Fusco, P.; Gebhard, M.; Giacomelli, G.; Giacomelli, R.; Giannini, G.; Giglietto, N.; Giorgini, M.; Giuliani, R.; Goretti, M.; Grassi, M.; Grau, H.; Gray, L.; Grillo, A.; Guarino, F.; Gustavino, C.; Habig, A.; Hanson, J.; Hanson, K.; Hawthorne, A.; Heinz, R.; Hong, J.T.; Iarocci, E.; Katsavounidis, E.; Katsavounidis, I.; Kearns, E.; Kim, H.; Kyriazopoulou, S.; Lamanna, E.; Lane, C.; Leone, A.; Levin, D.S.; Lipari, P.; Liu, G.; Liu, R.; Longley, N.P.; Longo, M.J.; Loparco, F.; Maaroufi, F.; Mancarella, G.; Mandrioli, G.; Manzoor, S.; Marrelli, V.; Margiotta, A.; Marini, A.; Martello, D.; Marzari-Chiesa, A.; Mazziotta, M.N.; Michael, D.G.; Mikheyev, S.; Miller, L.; Monacelli, P.; Mongelli, M.; Montaruli, T.; Monteno, M.; Mossbarger, L.; Mufson, S.; Musser, J.; Nicolo, D.; Nolty, R.; Okada, C.; Orsini, M.; Orth, C.; Osteria, G.; Ouchrif, M.; Palamara, O.; Parlati, S.; Patera, V.; Patrizii, L.; Pazzi, R.; Peck, C.W.; Pellizzoni, G.; Perchiazzi, M.; Perrone, L.; Petrakis, J.; Petrera, S.; Pignatano, N.; Pinto, C.; Pistilli, P.; Popa, V.; Raino, A.; Reynoldson, J.; Ronga, F.; Rrhioua, A.; Sacchetti, A.; Saggese, P.; Satriano, C.; Satta, L.; Scapparone, E.; Scholberg, K.; Sciubba, A.; Serra, P.; Sioli, M.; Sirri, G.; Sitta, M.; Sondergaard, S.; Spinelli, P.; Spinetti, M.; Spurio, M.; Stalio, S.; Steinberg, R.; Stone, J.L.; Sulak, L.R.; Surdo, A.; Tarle, G.; Togo, V.; Vakili, M.; Valieri, C.; Walter, C.W.; Webb, R.; Zaccheo, N.

    2002-01-01

    MACRO was an experiment that ran in the Laboratori Nazionali del Gran Sasso from 1988 to 2000. Its principal goal was to observe magnetic monopoles or set significantly lower experimental flux limits than had been previously available in the velocity range from about β=10 -4 to unity. In addition it made a variety of other observations. Examples are: setting flux limits on other so far unobserved particles such as nuclei and lightly ionizing particles, searching for WIMP annihilations in the Earth and the Sun and for neutrino bursts from stellar collapses in or near our Galaxy, and making measurements relevant to high energy muon and neutrino astronomy and of the flux of up-going muons as a function of nadir angle showing evidence for neutrino oscillations. The apparatus consisted of three principal types of detectors: liquid scintillator counters, limited streamer tubes, and nuclear track etch detectors. In addition, over part of its area it contained a transition radiation detector. The general design philosophy emphasized redundancy and complementarity. This paper describes the technical aspects of the complete MACRO detector, its operational performance, and the techniques used to calibrate it and verify its proper operation. It supplements a previously published paper which described the first portion of the detector that was built and operated

  12. Identification and antimicrobial resistance of members from the Enterobacteriaceae family isolated from canaries (Serinus canaria

    Directory of Open Access Journals (Sweden)

    Ruben V. Horn

    2015-06-01

    Full Text Available Abstract: The Enterobacteriaceae family contains potentially zoonotic bacteria, and their presence in canaries is often reported, though the current status of these in bird flocks is unknown. Therefore, this study aimed to identify the most common genera of enterobacteria from canaries (Serinus canaria and their antimicrobial resistance profiles. From February to June of 2013, a total of 387 cloacal swab samples from eight domiciliary breeding locations of Fortaleza city, Brazil, were collected and 58 necropsies were performed in canaries, which belonged to the Laboratory of Ornithological Studies. The samples were submitted to microbiological procedure using buffered peptone water and MacConkey agar. Colonies were selected according to their morphological characteristics on selective agar and submitted for biochemical identification and antimicrobial susceptibility. A total of 61 isolates were obtained, of which 42 were from cloacal swabs and 19 from necropsies. The most isolated bacteria was Escherichia coli with twenty five strains, followed by fourteen Klebsiellaspp., twelve Enterobacterspp., seven Pantoea agglomerans, two Serratiaspp. and one Proteus mirabilis. The antimicrobial to which the strains presented most resistance was sulfonamides with 55.7%, followed by ampicillin with 54.1% and tetracycline with 39.3%. The total of multidrug-resistant bacteria (MDR was 34 (55.7%. In conclusion, canaries harbor members of the Enterobacteriaceae family and common strains present a high antimicrobial resistance rate, with a high frequency of MDR bacteria.

  13. Evaluation of a fast and simple sample preparation method for PBDE flame retardants and DDT pesticides in fish for analysis by ELISA compared with GC-MS/MS

    Science.gov (United States)

    A simple, fast, and cost-effective sample preparation method, previously developed and validated for the analysis of organic contaminants in fish using low-pressure gas chromatography tandem mass spectrometry (LPGC-MS/MS), was evaluated for analysis of polybrominated diphenyl ethers (PBDEs) and dich...

  14. Diseño de indicadores urbanos de sustentabilidad. El caso del Gran San Juan en Argentina.

    Directory of Open Access Journals (Sweden)

    Nora Elsa Nacif

    2016-11-01

    Full Text Available Este trabajo surge de un proyecto de investigación en curso, cuya finalidad principal es contribuir al desarrollo urbano sustentable de la ciudad de Gran San Juan, entendiendo por tal, al desarrollo que considera como ejes del mismo a la equidad social, la eficiencia económica y la preservación del ambiente, a través del estudio de un cuerpo de indicadores urbanos como herramientas de monitoreo permanente y dinámico. La consideración de la sustentabilidad en Gran San Juan, es un imperativo ineludible por su carácter de “ciudad oasis de zona sísmica”, lo que implica preservar su condición de ciudad intermedia. En este marco, se sigue un esquema metodológico que ordena el trabajo en etapas generales de exploración de antecedentes e información obtenida como trabajo de campo, procesamiento y georeferenciación de resultados, para posteriormente formular lineamientos a ser considerados en planes de ordenamiento territorial. Hasta el momento los resultados obtenidos dentro de la línea investigativa, incluyen el desarrollo de un sistema de indicadores estructurado y articulado en base a tres subsistemas que se corresponden con los aspectos: Físico espacial, Socio cultural y Ambiental, que contienen a los diversos indicadores de sustentabilidad. Además de la aplicación de los indicadores del subsistema físico espacial para evaluar algunos sectores urbanos del Gran San Juan, considerados “críticos”. 

  15. Emilio Duhart: Seminario del Gran Santiago -1957. Precisiones del Proyecto Urbano

    Directory of Open Access Journals (Sweden)

    Cristián Berríos Flores

    2013-12-01

    En el año 1957 se realiza en Chile el “Seminario del Gran Santiago”, donde se convoca a diversos especialistas para abordar ampliamente los problemas urbanos que se estaban suscitando en la capital. Entre los expositores se encuentra el arquitecto Emilio Duhart Harosteguy, quien realiza un detallado análisis y propuestas urbanas para Santiago. Se puede detectar a priori una directa influencia de los principios de la arquitectura moderna en su exposición, pero también una cierta autonomía intelectual al momento de proponer estructuras urbanas sobre el espacio público.

  16. Canarias: entre el desarrollo turístico y la protección al medio

    Directory of Open Access Journals (Sweden)

    Tanausú Perez Garcia

    2010-11-01

    on the necessary conditions for sustainable development.Las Islas Canarias, situadas en la región macaronésica, acogen ecosistemas terrestres y marinos de valiosa riqueza ecológica y paisajística, representativos de las áreas culturales y biogeográficas de su entorno; hasta el punto de albergar tres Reservas de la Biosfera reconocidas por la UNESCO. La diversidad y riqueza de este marco insular ya fue elogiada por grandes científicos como Alexander von Humboldt o Charles Darwin. Sin embargo, actualmente la presión ejercida sobre el medio por parte del desarrollo urbanístico y la industria turística, motor económico del archipiélago, pone en peligro estos frágiles ecosistemas; lo que ha generado un profundo debate entre crecimiento económico y turístico, y desarrollo sostenible y conservación. El presente artículo trata, desde una óptica divulgativa, de acercar al lector al medio que caracteriza las Islas Canarias e introducirlo en el marco donde se desarrolla parte importante de la actividad turística en España, uno de los países que más turistas recibe año a año.

  17. Perfil psicológico del paciente gran quemado: prevalencia psicopatológica y variables asociadas

    Directory of Open Access Journals (Sweden)

    E. Gallach-Solano

    2015-12-01

    Full Text Available La Unidad de Grandes Quemados del Hospital La Fe de Valencia (España atiende al año aproximadamente 1.600 urgencias por quemaduras. El paciente gran quemado constituye un gran reto para los profesionales sanitarios por las implicaciones biopsicosociales que requiere su abordaje: atención médica para su supervivencia, atención psicológica por el importante riesgo de sufrir alteraciones, asistencia rehabilitadora y fisioterapéutica destinada a su activación funcional y atención social. Realizamos un estudio observacional caso-control transversal de carácter descriptivo, con pacientes hospitalizados en nuestra Unidad de Grandes Quemados con trastornos mentales previos. El objetivo general fue determinar y describir las características sociodemográficas, tipología del trauma sufrido, características y topografía de las quemaduras y la comorbilidad con trastornos mentales previos del paciente gran quemado. El 19,8% de estos pacientes presentó trastornos relacionados con el espectro ansioso, psicótico, del ánimo, tóxicos y alcohol, de la personalidad y alteraciones cognitivas previos a la lesión. Los que menor prevalencia parecen tener son los del espectro psicótico y los trastornos asociados al consumo de alcohol y tóxicos. No aparecieron diferencias significativas entre ninguna de las variables sociodemográficas y clínicas, salvo sexo, edad y grupo de convivencia. Los resultados de nuestro estudio reflejan que en este tipo de pacientes podrían estar directamente implicados diferentes trastornos psiquiátricos. Es importante considerar que la propia quemadura también puede generar trastornos psicológicos. Por ello las intervenciones psicológicas precoces y la determinación en este tipo de pacientes son imprescindibles elementos que permitan conseguir un buen ajuste adaptativo.

  18. Automated mini-column solid-phase extraction cleanup for high-throughput analysis of chemical contaminants in foods by low-pressure gas chromatography – tandem mass spectrometry

    Science.gov (United States)

    This study demonstrated the application of an automated high-throughput mini-cartridge solid-phase extraction (mini-SPE) cleanup for the rapid low-pressure gas chromatography – tandem mass spectrometry (LPGC-MS/MS) analysis of pesticides and environmental contaminants in QuEChERS extracts of foods. ...

  19. Gran Malvina. Una mirada a la experiencia bélica desde los testimonios de sus oficiales

    Directory of Open Access Journals (Sweden)

    Federico Lorenz

    2014-07-01

    Full Text Available En 1982, las fuerzas argentinas fueron derrotadas por Gran Bretaña en una guerra por las Islas Malvinas, en la que pelearon en pésimas condiciones, agravadas por el escenario hostil del archipiélago. El fracaso en esta conflagración, decidida y librada por la dictadura militar que gobernaba en Argentina desde 1976, dio lugar a un proceso que culminó con la restauración democrática. Se analizan las características de la experiencia bélica en Malvinas, a partir de un fondo documental producido a pocos días de la derrota. Este fondo está constituido por las declaraciones juradas de los oficiales argentinos acerca de su actuación en la guerra. Se estudian los testimonios escritos de oficiales que sirvieron en la Isla Gran Malvina, la segunda de las dos mayores que componen el archipiélago.

  20. Métodos respetuosos con el medio ambiente para la producción de grafeno a gran escala

    OpenAIRE

    J. I. Paredes; S. Villar-Rodil; M. J. Fernández-Merino; L. Guardia; A. Martínez-Alonso; J. M. D. Tascón

    2011-01-01

    Para alcanzar una explotación generalizada del grafeno en aplicaciones tecnológicas es requisito indispensable la existencia de métodos eficaces y baratos para la preparación y manipulación de este material a gran escala.

  1. Metodología para un proceso apreciativo, dinámico y colaborativo: III Plan de Salud de Canarias

    Directory of Open Access Journals (Sweden)

    José Joaquín O'Shanahan Juan

    2016-11-01

    Full Text Available La necesidad de nuevos enfoques de planificación estratégica con la incorporación de la visión de profesionales y ciudadanos ha orientado un nuevo modelo para el III Plan de Salud de Canarias (IIIPSC. Se propone un proceso participativo con soporte de metodología cualitativa en dos etapas: 1 fase local: estudio cuantitativo-cualitativo a través de una acción formativa y de investigación-acción-participación, y 2 fase insular: conferencias de salud, con debate sobre resultados en sesiones presenciales en cada área de salud (isla y propuestas de acción. El proceso define una priorización de problemas y un plan de acción específico para cada isla mediante operaciones consideradas viables, agrupadas por temas y ponderadas según el potencial impacto sobre los problemas priorizados. Este proceso de interacción puede contribuir a orientar los cambios de modelo de planificación y la toma de decisiones en política sanitaria, y se encuentra recogido en el Proyecto del IIIPSC para su tramitación parlamentaria.

  2. Upgrading of automobile shredder residue via innovative granulation process 'ReGran'.

    Science.gov (United States)

    Holthaus, Philip; Kappes, Moritz; Krumm, Wolfgang

    2017-01-01

    Stricter regulatory requirements concerning end-of-life vehicles and rising disposal costs necessitate new ways for automobile shredder residue utilisation. The shredder granulate and fibres, produced by the VW-SICON-Process, have a high energy content of more than 20 MJ kg -1 , which makes energy recovery an interesting possibility. Shredder fibres have a low bulk density of 60 kg m -3 , which prevents efficient storing and utilisation as a refuse-derived fuel. By mixing fibres with plastic-rich shredder granulate and heating the mixture, defined granules can be produced. With this 'ReGran' process, the bulk density can be enhanced by a factor of seven by embedding shredder fibres in the partially melted plastic mass. A minimum of 26-33 wt% granulate is necessary to create enough melted plastic. The process temperature should be between 240 °C and 250 °C to assure fast melting while preventing extensive outgassing. A rotational frequency of the mixing tool of 1000 r min -1 during heating and mixing ensures a homogenous composition of the granules. During cooling, lower rotational frequencies generate bigger granules with particles sizes of up to 60 mm at 300 r min -1 . To keep outgassing to a minimum, it is suggested to melt shredder granulate first and then add shredder fibres. Adding coal, wood or tyre fluff as a third component reduces chlorine levels to less than 1 wt%. The best results can be achieved with tyre fluff. In combination with the VW-SICON-Process, ReGran produces a solid recovered fuel or 'design fuel' tailored to the requirements of specific thermal processes.

  3. Análisis del mercado de productos derivados de créditos/acciones antes y durante la Gran Recesión

    OpenAIRE

    Frigola Alcalde, Hector

    2010-01-01

    La crisis que empezó el año 2007 se ha convertido en la mayor recesión desde la Gran Depresión de los años 1930, una crisis que muchos especialistas han bautizado con el nombre de Gran Recesión. Este trabajo estudia las causas que han llevado al mercado de capital a semejante colapso global, analizando tres aspectos clave en el desarrollo de la crisis: los Credit Default Swaps (CDS), la titularización y las estrategias de un hedge fund, Topaz, que utilizaba un modelo cuantitativo para la valo...

  4. Evaluation of a recent product to remove lipids and other matrix co-extractives in the analysis of pesticide residues and environmental contaminants in foods

    Science.gov (United States)

    This study demonstrates the application of a novel lipid removal product to the residue analysis of 65 pesticides and 52 environmental contaminants in kale, pork, salmon, and avocado by fast, low pressure gas chromatography – tandem mass spectrometry (LPGC-MS/MS). Sample preparation involves QuEChE...

  5. Estudio micológico de El Canal y Los Tiles (La Palma, Islas Canarias. V. Datos adicionales

    Directory of Open Access Journals (Sweden)

    Leal, Julio

    2009-12-01

    Full Text Available An annotated catalogue of 66 taxa, collected in the early MAB Reserve El Canal y Los Tiles is presented. Among these taxa, 11 species are new for La Palma island and 5 are recorded for the first time in the Canary Islands. Taxonomic comments on some critical species and information about the distribution in the Macaronesian bioregion of all the studied taxa are given. Based on our previous publications, global data on biodiversity, substrates and distribution of the mycobiota in the different plant communities present in the sampled area are analyzed.

    Se presenta un estudio sobre 66 especies, pertenecientes a las divisiones Myxomycota (21, Ascomycota (29 y Basidiomycota (16, encontradas en la antigua Reserva de la Biosfera El Canal y Los Tiles. De ellas 11 se citan por primera vez para la isla de La Palma, siendo 5 de éstas nuevas para Canarias. Se hacen comentarios taxonómicos sobre algunos táxones conflictivos, además de amplia información sobre su distribución en la Región Macaronésica. En base a publicaciones propias anteriores, se aportan datos globales sobre biodiversidad, sustratos y distribución de la micobiota en las diferentes unidades ambientales presentes en el área de estudio.

  6. Estudio de una red aislada de distribución de pequeña potencia y gran penetración eólica con la herramienta PSS/E

    OpenAIRE

    Merino Fernández, Julia

    2010-01-01

    El objeto de este proyecto es realizar un análisis de estabilidad ante contingencias en una red aislada de pequeña potencia con alto grado de penetración eólica mediante la herramienta PSS/E con el fin de aportar conocimiento para, posteriormente, definir la forma de operación más adecuada de dicho sistema atendiendo a su eficacia y fiabilidad. La red considerada para el estudio es la de la isla de El Hierro, en el archipiélago de Canarias, donde se tiene previsto abastecer exclusivamen...

  7. Porfirio Díaz y la “Gran Dieta Simbólica”: ¿La masonería mexicana bajo control?

    Directory of Open Access Journals (Sweden)

    Rogelio Aragón

    2015-01-01

    Full Text Available Las fuentes más consultadas para la historia de la masonería en México durante el período conocido como"Porfiriato" apuntan a que fue, precisamente, el presidente Porfirio Díaz el artífice de la unificación de lamasonería bajo la llamada "Gran Dieta Simbólica". Sin embargo, el intercambio epistolar entre el generalDíaz y Ermilio Cantón -que más bien fue monólogo epistolar de este último-, dirigente de facto de la GranDieta, apunta en una dirección distinta. El presente artículo contrapone la información proporcionada por lasfuentes bibliográficas con la correspondencia del presidente.

  8. REPRESENTACIÓN BURLESCA DE LOS BLASONES EN GRAN SEÑOR Y RAJADIABLOS

    Directory of Open Access Journals (Sweden)

    Luis Hermosilla

    2011-11-01

    Full Text Available En este ensayo se analiza el repertorio de recursos satíricos empleados por Eduardo Barrios en Gran Señor y rajadiablos en la confección de un relato humorístico que socava la percepción ideológica que privilegiaba la fama del apellido y del linaje peninsular como signos hegemónicos del estatus aristocrático. Mediante la caricaturización literaria de las cadenas emblemáticas asociadas al fuero de los Casaquemada y el escudo de armas de los antepasados de los Valverde, Eduardo Barrios pone de relieve la persistencia ideológica, en algunos sectores de la sociedad chilena representada en la novela, de un sistema anacrónico de diferenciación social incompatible con el nuevo ideario democrático impulsado con el advenimiento de la república.This essay analyses the array of satirical resources employed by Eduardo Barrios in his Gran Señor y rajadiablos (GreatLordandHellRaiser to create a humoristic narration undermining the ideological perception that favored the Peninsular last name and lineage as hegemonic signs of aristocratic status. Through a literary caricature-like representation of the emblematic chains related to the Casaquemada court of justice and the Valverde predecessors' coat of arms, Barrios satirizes the persistence of an anachronic ideology of social differentiation held by some sectors of the Chilean society represented in this novel. Such ideology becomes incompatible with the new democratic ideals brought along by the emerging Republic.

  9. Predicting Gran alkalinity and calcium concentrations in river waters over a national scale using a novel modification to the G-BASH model

    International Nuclear Information System (INIS)

    Cresser, Malcolm S.; Ahmed, Nayan; Smart, Richard P.; Arowolo, Toyin; Calver, Louise J.; Chapman, Pippa J.

    2006-01-01

    Monthly stream water calcium and Gran alkalinity concentration data from 11 sub-catchments of the Nether Beck in the English Lake District have been used to appraise the transferability of the Scottish, River Dee-based G-BASH model. Readily available riparian zone geochemistry and flow paths were used initially to predict minimum and mean stream water concentrations at the Nether Beck, based on calibration equations from the River Dee catchment data. Predicted values significantly exceeded observed values. Differences in runoff between the two areas, leading to a dilution effect in the Nether Beck, explained most of the difference between observed and predicted values. Greater acid deposition in the Lake District also reduced stream water Gran alkalinity concentrations in that area. If regional differences in precipitation, evapotranspiration and pollutant deposition are incorporated into the model, it may then be used reliably to predict catchment susceptibility to acidification over a wide regional (national) scale. - A modified G-BASH model predicts calcium and Gran alkalinity in streams at a national scale, taking account of regional deposition and climatic variations

  10. Predimensionamiento de la estructura perimetral de un gran depósito de agua

    OpenAIRE

    Liria Montañés, José; Sainz Borda, José Ángel

    1983-01-01

    RESUMEN. Una de las obras más características del proyecto de abastecimientos de aguas a poblaciones son los depósitos, cuyos elementos estructurales deben diseñarse atendiendo a su estabilidad y a una optimización de su costo, proceso muy influenciado por el terreno. La pared perimetral tiene gran importancia es este diseño, y a su estudio se dedica este artículo, que ofrece ábacos de aplicación inmediata al predimensionamiento de este tipo de estructuras.

  11. Análisis geográfico de las relaciones comerciales exteriores de Canarias

    Directory of Open Access Journals (Sweden)

    Ramón Díaz Hernández

    2013-11-01

    Full Text Available Durante la década de los noventa, el comercio exterior de Canarias empieza a sentir los efectos de la incorporación de España a la Unión Europea (1986. La armonización de los mercados de destino y de origen, a resultas de este hecho, rompe poco a poco con las ventajas comerciales tradicionales de las Islas. Ello supone, a la vez, una mayor vinculación con Europa y un estrechamiento de los intercambios con el resto del Estado Español. No obstante, como resultado de una rica experiencia mercantil, el Archipiélago mantiene aún contactos comerciales con la mayor parte de los países y territorios de todos los continentes. Esa fortaleza patrimonial puede instrumentarse como plataforma de la Unión Europea en las relaciones Norte-Sur, pero también, como polo privilegiado en el comercio Sur-Sur, en la pugna por la expansión de los emergentes mercados del Hemisferio Sur.During the decade of the 1990s, foreign trade with the Canary 1slatids begins to feel the effects of Spain's incorporation into the European Community (1986. However, the coordination between foreign arid domestic markets has had little effect on the traditional commercial advantages of the Canary Islands. This implies, at the same time, a greater link with Europe and an increased exchange relationship with the rest of Spain. Nevertheless, as a result of a prosperous trading experience, the Canarian Archipelago still maintains commercial contacts with most of the countries in the world. This economic strength can be instrumental as a platform for the European Community in its relations between the North and the South. But, also, as a privileged pole in commerce within the South, in the struggle for expansion of the emerging markets in the Southern Hemisphere.

  12. Geographical Variation of Deltamethrin Susceptibility of Triatoma infestans (Hemiptera: Reduviidae) in Argentina With Emphasis on a Resistant Focus in the Gran Chaco.

    Science.gov (United States)

    Fronza, G; Toloza, A C; Picollo, M I; Spillmann, C; Mougabure-Cueto, G A

    2016-07-01

    Chagas disease is one of the most important parasitic infections in Latin America. The main vector of the protozoan Trypanosoma cruzi in America is Triatoma infestans, a blood-sucking triatomine bug who is widely distributed in the Gran Chaco ecoregion. Control programs in endemic countries are focused in the elimination of triatomine vectors with pyrethroid insecticides. However, chemical control has failed in the Gran Chaco over the last two decades because of several factors. Previous studies have reported the evolution of different levels of resistance to deltamethrin in Tri. infestans Recently, very high resistance has been found in the central area of the Argentine Gran Chaco. However, the origin and the extension of this remarkably resistant focus remain unknown. The aim of this study was to evaluate the geographical variation of deltamethrin susceptibility of Tri. infestans in different endemic provinces of Argentina, with emphasis in the center of the Argentine Gran Chaco ecoregion where this main vector has not been reduced. Populations of Mendoza, San Juan, Santiago del Estero, and Tucumán provinces were all susceptible. Resistant populations were only detected in the province of Chaco, where a mosaic resistant focus was described at the Güemes Department. It was characterized into three pyrethroid resistance categories: susceptible, low, and highly resistant populations. We found the populations with the highest resistance levels to deltamethrin, with resistant ratios over 1000. © The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  13. Una manera de nombrar el deseo en Toda esa gran verdad

    Directory of Open Access Journals (Sweden)

    Mauricio List

    2011-01-01

    Full Text Available Este artículo analiza la novela Toda esa gran verdad (2006 del mexicano Eduardo Montagner. El artículo centra su atención en el tema de la sexualidad, particularmente la del personaje principal. La idea es reflexionar acerca de formas disidentes de la sexualidad que rompen con las maneras normativas y que son sancionadas socialmente. En este caso en particular, unas botas de hule son el centro de la atención de un joven de una comunidad rural que dice estar enamorado del dueño de dicho calzado. Él va aprendiendo que un sujeto fetichista requiere de su objeto para disfrutar del placer erótico.

  14. Consumo de oxígeno en hipotermia, durante circulación extracorpórea, en cirugías de niños con cardiopatías congénitas complejas en Canarias: perfiles cinéticos e implicaciones fisiológicas

    OpenAIRE

    García Mendieta, Jorge Saúl

    2016-01-01

    Programa de doctorado: Avances en Medicina Interna. La fecha de publicación es la fecha de lectura [ES]El presente estudio intenta demostrar que hay diferentes perfiles cinéticos de la relación consumo de oxígeno y temperatura corporal, durante la circulación extracorpórea e hipotermia (CEC-Hp) en niños operados por cardiopatías congénitas complejas en Canarias.

  15. Proyecto básico de infraestructuras hidráulicas urbanas en la Urbanización Gran Godella, Godella (Valencia): Red de abastecimiento.

    OpenAIRE

    ALEIXANDRE BADÍA, DAVID

    2017-01-01

    [ES] La Urbanización Gran Godella es un sector urbanizable de nuevo desarrollo ubicado en el Término Municipal de Godella (Valencia) y con una superficie total de 239.531,96 m2. El objeto del presente proyecto es el diseño de la red de abastecimiento de agua para la Urbanización Gran Godella. Se debe abastecer a 1.186 viviendas, un centro comercial, un edificio de oficinas y un colegio de 500 plazas, además del riego de 38.982 m2 de jardines y el sistema contra incendios. Se diseña u...

  16. Characterization of Microsatellites for the Endangered Ruta oreojasme (Rutaceae and Cross-Amplification in Related Species

    Directory of Open Access Journals (Sweden)

    Marilena Meloni

    2013-04-01

    Full Text Available Premise of the study: Ruta oreojasme is an endangered species endemic to Gran Canaria (Canary Islands, Spain, where it occurs in small populations with disjunct distribution. Nothing is known about the genetic structure of these populations. Methods and Results: Using a microsatellite-enriched library method, 10 microsatellite markers have been developed from R. oreojasme, all of which showed polymorphism. The transferability of the 10 markers was tested in two other Canarian endemic species, R. microcarpa and R. pinnata, as well as in the widespread species R. montana. Conclusions: Our results demonstrate the value of these newly developed microsatellite markers to investigate the genetic structure in R. oreojasme and show their potential applicability for population genetic studies in other Ruta species.

  17. [Historical compendium of physical activity and sport].

    Science.gov (United States)

    Rodríguez Rodríguez, Luis Pablo

    2004-01-01

    The Historical Compendium of Physical Activity and Sport analyses, from a scientific perspective, past events in the array of tasks or manoeuvres comprising body movement, in a setting of human liberty and creative capacity. Sport is examined as a result of the evolution of games and in a context of these games. This book contemplates sports, whose selection criteria have included specific features of their individual or team qualities, or combat or opposition characteristics, or those related to their artistic features or to instrumentation or adaptation, or other connotations. 1st authors are 36 professors, from the universities of Barcelona, (Central), Granada, Jaen, Las Palmas de Gran Canaria, León, Madrid (Complutense), Málaga, Murcia, Oviedo, País Vasco, Salamanca, Valencia and Zaragoza.

  18. Dietary intake of aluminum in a Spanish population (Canary Islands).

    Science.gov (United States)

    González-Weller, Dailos; Gutiérrez, Angel José; Rubio, Carmen; Revert, Consuelo; Hardisson, Arturo

    2010-10-13

    The aim of this study was to analyze the aluminum content in foods and beverages most commonly consumed by the Canary Island population to determine the dietary intake of this metal throughout the Canary Islands as a whole and in each of the seven islands (Gran Canaria, Lanzarote, Fuerteventura, Tenerife, La Palma, La Gomera, and El Hierro). Four hundred and forty samples were analyzed by ICP-OES. Estimated total intake of aluminum for the Canary population was 10.171 mg/day, slightly higher than the provisional tolerable weekly intake (PTWI; 10 mg/day for a person weighing 70 kg). Aluminum intake by age and sex of the Canary Island population was also determined and compared values from other populations, both national and international.

  19. 77 FR 47522 - Special Local Regulation; Port Huron Offshore Gran Prix, St. Clair River; Port Huron, MI

    Science.gov (United States)

    2012-08-09

    ... 13045, Protection of Children from Environmental Health Risks and Safety Risks. This rule is not an economically significant rule and does not create an environmental risk to health or risk to safety that may...-AA08 Special Local Regulation; Port Huron Offshore Gran Prix, St. Clair River; Port Huron, MI AGENCY...

  20. Tidal tilts observations in the Gran Sasso underground laboratory

    International Nuclear Information System (INIS)

    Iafolla, V.; Nozzoli, S.; Milyukov, V.

    2001-01-01

    A new tilt meter, based on the technology for building a space-borne high-sensitivity accelerometer and manufactured at IFSI/CNR, has a been operating during several years in the INFN Gran Sasso underground laboratory. The results of the analysis of a three-year data set, processed with the program package ETERNA, to estimate earth tidal parameters are reported. For the best series of data (1998) tide measurement accuracies are: 0.5-1% for the M 2 (lunar principal) amplitude and 3-4% for the O 1 (lunar declination) amplitude. The tilt meter installed at a depth of 1400 m shows no clear evidence of meteorological effects. Observed tidal parameters are compared with theoretical tidal parameters predicted for a non-hydrostatic inelastic Earth model and demonstrate good agreement for the M 2 component. Due to the high accuracy of the tidal components prediction (better than 1%) tidal measurements were used to estimate the long-term stability of the instrument response

  1. La Restauración del Templo I “Gran Jaguar” de Tikal (Guatemala)

    OpenAIRE

    Gaspar Muñoz Cosme

    1997-01-01

    La ciudad maya de Tikal, que alcanzó su máximo explendor en los siglos VII y VIII de nuestra era, ha sido declarada por la UNESCO Patrimonio Cultural de la Humanidad en 1979 y Monumento Universal en 1986. El Templo I de Tikal, tambien conocido con el nombre de Templo del “Gran Jaguar”, constituye hoy en día el emblema de esta ciudad maya de Guatemala. Gaspar Muñoz Cosme, arquitecto, explica los interesantes trabajos de restauración de este Templo I, desarrollados entre 1992 y 1996, planteando...

  2. My American Uncle, America Cries Uncle, and Other Fantastic Tales from France: Iegor Gran's Jeanne d'Arc fait tic-tac

    Directory of Open Access Journals (Sweden)

    Carolyn A. Durham

    2008-01-01

    Full Text Available Ella Shohat and Robert Stam's proposal that beliefs about nations often crystallize in the form of stories could serve as both summary and generative matrix for Jeanne d'Arc fait tic-tac . In keeping with a number of recent fictional works united by the attempt to understand French and American cultures in a comparative context, the first part of Iegor Gran's clever 2005 novel consists of eleven stories whose common focus on the danger represented by American culture for French national identity makes the second part of the novel, in which France declares war and invades the United States, almost inevitable. In the opening section of Jeanne d'Arc , Gran both rewrites the traditional folktale for a self-reflective postmodern age and revises and satirizes the conventions of fantastic literature. The primary comic strategy of the second half of the novel, constructed as a parody of the current American conflict in Iraq, pays homage to the most recent source of tension between the United States and France. Throughout the novel Gran caricatures French chauvinism and insularity as much as he mocks American arrogance and consumerism, and the metaphorical demise of the "oncle d’Amérique,” the specifically French version of the American dream, continually reminds us of the sheer power and pleasure of narrative.

  3. La industria del Gran La Plata según el último Censo Nacional Económico

    Directory of Open Access Journals (Sweden)

    Diego Arturi

    2012-12-01

    Full Text Available El artículo tiene como objetivo caracterizar el sector industrial del Gran La Plata en base a información del último Censo Nacional Económico (CNE 2004/2005. En una primer parte se identifican las principales características del sector industrial a escala nacional en los períodos neoliberal y posconvertibilidad, a partir de bibliografía especializada y análisis de series estadísticas e informes técnicos. En una segunda parte se analiza el sector industrial del Gran La Plata en base a entrevistas a informantes calificados y a los datos censales según cantidad de establecimientos, puestos de trabajo ocupados, rama de actividad, tamaño de los locales industriales, productividad y especialización industrial de los municipios; asimismo se realiza una aproximación a niveles de intensidad tecnológica por rama. A partir de este análisis se pueden destacar las siguientes conclusiones: predominio de las micro y pequeñas empresas, productividad superior al promedio nacional, escaso aporte de las ramas de alta intensidad tecnológica y ausencia de especialización que impide definir un perfil industrial marcado.

  4. Gran colector bajo el Danubio en Linz – Austria

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1977-07-01

    Full Text Available The mission of this huge under-river sewer is to carry the waste water from the left bank of the Danube to the other side of the river where a large sewage treatment plant is being constructed. In order to carry out its 375 m in length and 2.4 m inside diameter, where several drain pipes and ducts for remote heating and supply of electric power are housed, a system of pressure propulsion has been sed. This system is based on a series of hydraulic presses, which gradually insert into the ground the prefabricated reinforced concrete tubular elements, 3 m in length, which form the sewer. The work on the aforementioned sewer is completed with a pumping well located on the left bank and originated by the difference in level between the connections of the respective sewers on each side of the river — as well as a collection well, situated on the right bank, which links up with the main sewer of the treatment plant. Both wells are built with reinforced concrete.La misión de este gran colector subfluvial es la de conducir las aguas residuales procedentes de la orilla izquierda del Danubio al otro lado del río, en donde se está construyendo una gran planta depuradora. Para la realización de sus 373 m de longitud y 2,40 m de diámetro interior, donde se albergan diversas tuberías de desagüe y conductos para calefacción a distancia y suministro de energía eléctrica, se ha empleado un sistema de propulsión a presión. Dicho sistema se basa en una serie de prensas hidráulicas, que van introduciendo en el terreno los elementos tubulares prefabricados de hormigón armado, de 3 m de longitud, que constituyen el colector. Los trabajos del citado colector se completan con un pozo de bombeo —situado en la orilla izquierda y originada por la diferencia de nivel existente entre las acometidas de los respectivos colectores de ambos lados del río— y otro de recogida, emplazado en la orilla derecha, que enlaza con el colector principal de la

  5. Proveïment de QoS en xarxes de paquets òptiques per a entorns d'àrea metropolitana i de gran abast

    OpenAIRE

    Careglio, Davide

    2005-01-01

    El gran crecimiento y expansión de Internet en los últimos años, con el consecuente incremento de usuarios y tráfico, ha hecho que aumente la necesidad de ancho de banda en las redes de telecomunicación actuales. El desafío de la futura generación de redes de telecomunicación punta a pasar de la simple transmisión de señales ópticas de gran capacidad a efectivamente conmutar y gestionar esta cantidad de datos en el domino óptico. Estas funcionalidades, actualmente realizadas por componentes e...

  6. Ecological impact of transhumance on the trophic state of alpine lakes in Gran Paradiso National Park

    Directory of Open Access Journals (Sweden)

    Tiberti R.

    2014-01-01

    Full Text Available Transhumance – the summer transfer of livestock to highland pastures – is a traditional practice in the European Alps and is considered an integral part of the mountain ecosystem. Mountain lakes are generally oligotrophic systems and are particularly sensitive to the nutrient input caused by livestock. The aim of the present study was to quantify the impact of livestock grazing on the trophic state of high-altitude lakes in an area where transhumance is a traditional practice (Gran Paradiso National Park, Western Italian Alps, taking into account its dual value of ecosystem component and potential threat to lakes’ trophic status. The impact of flocks and herds grazing was estimated on sensitive parameters related to the trophic state of alpine lakes: water transparency, nutrient content, bacterial load and chlorophyll-a concentration. Transhumance produced a significant increase in the trophic state of lakes with high grazing pressure, but little or no effect was found at soft-impacted lakes. Even though heavy-impacted lakes represent a minority of the studied lakes (three out of twenty, we indicated conservation measures such as fencing, wastewater treatment and livestock exclosure to be tested in Gran Paradiso National Park.

  7. DISEÑO DE UN SISTEMA DE GESTIÓN DE LA CALIDAD EN EL PROCESO DE ALOJAMIENTO EN EL HOTEL “GRAN CARIBE VILLA TORTUGA” / DESIGN OF A QUALITY MANAGEMENT SYSTEM IN THE PROCESS OF ACCOMMODATION IN "GRAN CARIBE VILLA TORTUGA” HOTEL

    Directory of Open Access Journals (Sweden)

    Marilet Cazañas-Rivero

    2011-03-01

    Full Text Available

    Teniendo en cuenta el desarrollo de la industria turística y la necesidad de la excelencia competitiva, se concibe este trabajo en el Hotel “Gran Caribe Villa Tortuga” con el objetivo central de diseñar un Sistema de Gestión de la Calidad que permita la mejora del proceso de Alojamiento en este Hotel. Después de un diagnóstico inicial se demostró la necesidad de realizar cambios significativos en la instalación, donde existen dificultades en cuanto a la gestión de la calidad adecuada a las características del Hotel, en el cual no se toman acciones que permitan resolver dichas deficiencias. Se elaboró un procedimiento para el diseño del Sistema de gestión de la Calidad en el Hotel “Gran Caribe Villa Tortuga”. El diseño del Sistema de Gestión de la Calidad en el área de Alojamiento brinda a la dirección del Hotel el estado actual de la calidad de los servicios en esta área, mediante la aplicación de las técnicas utilizadas y ofrece las estrategias a seguir para lograr un mejor servicio.

    Abstract

    Taking into account the development of the tourist industry and the necessity of the competitive excellence it is conceived this work in the “Gran Caribe Villa Tortuga” Hotel, focusing in the design of a Quality Management System that allows the improvement of the process of Accommodation in this Hotel. After an initial diagnosis, it was demonstrated the necessity of carrying out significant changes in the facilities. There are some difficulties regarding quality management suited to the characteristics of the Hotel in which actions that allow solving these deficiencies are not carried out. It was elaborated a procedure for the design of the Quality Management System in the “Gran Caribe Villa Tortuga” Hotel. The design of the Quality Management System in the Accommodation area provides the Hotel management with the current state of service quality in this area by means of the

  8. Fútbol y conflictividad sociopolítica durante la dictadura de Franco. Un estudio de caso

    Directory of Open Access Journals (Sweden)

    Néstor García Lázaro

    2014-02-01

    Full Text Available El objetivo de la presente investigación es ahondar la relación existente entre el fútbol y la conflictividadsociopolítica durante los períodos de dictadura. Para ello nos centramos en estudiar los desórdenespúblicos que tienen lugar durante y después del encuentro que enfrenta a la Unión Deportiva LasPalmas contra el Córdoba en el Estadio Insular el 4 de marzo de 1962. Nos basamos principalmenteen la documentación generada por las autoridades franquistas, como es el caso del Servicio de Informaciónde la Guardia Civil, la Dirección General de Seguridad y el Gobernador Civil de Las Palmas;la prensa oficial de la época y la de las organizaciones antifranquistas. Explicamos este conflicto comofruto de las condiciones económicas, sociales y políticas que se viven durante los años anteriores enla ciudad de Las Palmas de Gran Canaria, que generan un gran descontento entre todas las clases socialescon la dictadura imperante. De esta investigación se desprende el cariz nacionalista del conflictoy la importancia que el mismo tuvo para las autoridades franquistas, que emprendieron una serie deacciones para mejorar la situación de las islas.The aim of this research is to deepen the relationship between football and socio-political conflictduring periods of dictatorship. For this study we focus on public disorder occurring during and afterthe match pitting the Union Deportiva Las Palmas against Córdoba at Estadio Insular March 4, 1962.To do this we rely primarily on the documentation generated by the Francoist authorities, such as theInformation Service of the Civil Guard, the Dirección General de Seguridad and the Civil Governorof Las Palmas; the official press of the time and the propaganda of the anti-Franco organizations. Weexplain this conflict as a result of the economic, social and political conditions that is lived in the yearsbefore on the city of Las Palmas de Gran Canaria, that generate a lot of discontent among all

  9. Plataformas elevadoras para trabajar en árboles frutales de gran tamaño.

    OpenAIRE

    Gil Sierra, Jacinto

    2008-01-01

    Una de las tendencias en la fruticultura desde hace muchos años es la reducción del tamaño de los árboles. plantándolos en marcos más estrechos. Sin embargo, sigue habiendo huertos con frutales de gran tamaño, como son los tradicionales en los valles de los ríos aragoneses. La única posibilidad de alcanzar la copa de los árboles grandes es recurrir a escaleras o al uso de plataformas elevadoras. En este artículo se analizan las distintas posibilidades de uso de dichas plataformas, sus caracte...

  10. Salón social del club natación Metropole Las Palmas de Gran Canaria, España

    Directory of Open Access Journals (Sweden)

    López Díaz, Luis

    1978-02-01

    Full Text Available This hall is the first stage of an ambitious programme of reforms and extensions to the Metropole Swimming Club which, apart from increasing and diversifying the number of the sports installations, includes others of an eminently social nature. The numerous conditioning factors which limited the construction of the hall from the beginning, both regarding the surface —rectangular and extremely elongated, messuring 13 x 13 m, and height— about 3 m, and regarding its situation within the whole, lead to the arrangement of three articulated atmospheres within a single space, covered with thin reinforced concrete warped membranes, as the only solution capable, on the one hand, of reducing the coldness and stiffness of the structure imposed, and on the other, of satisfactorily answering the design bases which prefixed multifunctionality, transparency and representativity of the building. A final premiss which called for the integration of the work in a surrounding gardaned environment was solved by the complete glazing of the frontages and the light tones of the finishing materials.

    Este salón es la primera fase de un ambicioso programa de reformas y ampliaciones para el Club Natación Metropole que, además de aumentar y diversificar el número de las instalaciones deportivas, incluye otras de carácter eminentemente social. Los numerosos condicionantes que desde un principio limitaron la construcción del salón, tanto en cuanto a superficie —rectángulo sumamente alargado de 13 x 33 m— y altura —unos 3 m—, como a su situación dentro del conjunto, condujeron a la organización de tres ambientes articulados dentro de un espacio único, cubiertos con sendas membranas delgadas de hormigón armado, de formas alabeadas, como única solución capaz, por una parte, de reducir la frialdad y rigidez de la conformación impuesta, y por otra, de responder satisfactoriamente a las bases de diseño que prefijaban la multifuncionalidad, diafanidad y representatividad del edificio. Una última premisa que requería la integración de la obra en el ambiente ajardinado circundante, se resolvió mediante el total acristalamiento de las fachadas y la entonación clara de los materiales de acabado.

  11. Gerda: A new 76Ge Double Beta Decay Experiment at Gran Sasso

    International Nuclear Information System (INIS)

    Simgen, Hardy

    2005-01-01

    In the new 76 Ge double beta decay experiment Gerda [I. Abt et al., arXiv hep-ex/0404039; Gerda proposal, to be submitted to the Gran Sasso scientific committee] bare diodes of enriched 76 Ge will be operated in highly pure liquid nitrogen or argon. The goal is to reduce the background around Q ββ =2039 keV below 10 -3 counts/(kg-bar keV-bar y). With presently available diodes from the Igex and HdMs experiments the current evidence for neutrinoless double beta decay [H.-V. Klapdor-Kleingrothaus, et al., Mod. Phys. Lett. A16 (2001) 2409ff] can unambigously be checked within one year of measurement

  12. Habitat suitability—density relationship in an endangered woodland species: the case of the Blue Chaffinch (Fringilla polatzeki

    Directory of Open Access Journals (Sweden)

    Luis M. Carrascal

    2017-09-01

    Full Text Available Background Understanding constraints to the distribution of threatened species may help to ascertain whether there are other suitable sectors for reducing the risks associated with species that are recorded in only one protected locality, and to inform about the suitability of other areas for reintroduction or translocation programs. Methods We studied the Gran Canaria blue chaffinch (Fringilla polatzeki, a habitat specialist endemic of the Canary Islands restricted to the pine forest of Inagua, the only area where the species has been naturally present as a regular breeder in the last 25 years. A suitability distribution model using occurrences with demographic relevance (i.e., nest locations of successful breeding attempts analysed using boosted classification trees was built considering orographic, climatic and habitat structure predictors. By means of a standardized survey program we monitored the yearly abundance of the species in 100 sectors since the declaration of Inagua as a Strict Nature Reserve in 1994. Results The variables with the highest relative importance in blue chaffinch habitat preferences were pine height, tree cover, altitude, and rainfall during the driest trimester (July–September. The observed local abundance of the blue chaffinch in Inagua (survey data was significantly correlated with habitat suitability derived from modelling the location of successful nesting attempts (using linear and quantile regressions. The outcomes of the habitat suitability model were used to quantify the suitability of other natural, historic, pine forests of Gran Canaria. Tamadaba is the forest with most suitable woodland patches for the species. We estimated a population size of 195–430 blue chaffinches in Inagua since 2011 (95% CI, the smallest population size of a woodland passerine in the Western Palearctic. Discussion Habitat suitability obtained from modelling the location of successful breeding attempts is a good surrogate of the

  13. On the possibility of recovering palaeo-diurnal magnetic variations in transitional lava flows. 2. An experimental case study

    Science.gov (United States)

    Vérard, Christian; Leonhardt, Roman; Winklhofer, Michael; Fabian, Karl

    2008-08-01

    Geomagnetic field variations of external origin may be enhanced during periods of transitional field behaviour, particularly when the dipole moment is low, in which case they are likely to leave a paleomagnetic signature in rapidly cooled lava flows. To test this proposition, we have resampled en bloc and studied in fine detail a thin transitional Aa flow from a mid-Miocene lava sequence on Gran Canaria which was paleomagnetically investigated previously (Leonhardt, R., Soffel, H.-C., 2002. A reversal of the Earth's magnetic field recorded in mid-Miocene lava flows of Gran Canaria, Paleointensities. Journal of Geophysical Research 107, 2299. doi:10.1029/2001JB000949). The flow is characterised by high-unblocking temperatures, an equatorial VGP position and a very low absolute palaeointensity of ˜2 μT. Two slabs were cut out of the flow and sampled at 1 cm intervals, along four vertical profiles running parallel to each other. Thermal demagnetisation was performed on two profiles using heating steps as small as 15 °C at elevated temperatures. The high-temperature part of the unblocking spectrum was found to be remarkably constant across the flow, as was the Curie temperature of 540 °C, and the negligible anisotropy of magnetic susceptibility. The exsolution lamallae observed under the microscope point to deuteric (high temperature) oxidation having occurred prior to the acquisition of the primary thermoremanent magnetisation. While the absolute palaeointensity values vary only little with vertical position, the magnetisation directions recovered by thermal demagnetisation vary considerably (on average, by some 20° at 500 °C). These large variations can be attributed to an overprint by secondary minerals, formed by fluid diffusion around vesicles and low-temperature oxidation. Since the secondary magnetisation recorded transitional directions as well, the overprint must have occurred soon after emplacement. The directional variations typically decrease in

  14. Cytotaxonomic investigations in some Angiosperms collected in the Valley of Aosta and in the National Park « Gran Paradiso »

    NARCIS (Netherlands)

    Gadella, Th.W.J.; Kliphuis, E.

    1970-01-01

    The chromosome number of 53 species of Angiosperms, occurring in the Valley of Aosta and in the National Park « Gran Paradise » was determined. Some notes on the taxonomy of some species are presented in this paper.

  15. Conventos femeninos en el urbanismo de Canarias (siglos XVI-XIX

    Directory of Open Access Journals (Sweden)

    Juan Sebastián López García

    2013-11-01

    Full Text Available Los  monasterios femeninos poseyeron una desigual presencia en el archipiélago canario, dado que sólo hubo fundaciones en tres de las siete islas, repartidos en nueve poblaciones, con un total de quince inmuebles hasta el siglo XIX. Las fundaciones más antiguas datan del siglo XVI, ya que debe recordarse que la incorporación de Canarias a la Corona de Castilla se produjo a lo largo de la centuria anterior. En cuanto a las órdenes, las más numerosas fueron las franciscanas (clarisas y concepcionistas con seis monasterios, a las que siguen las dominicas o catalinas y las bernardas, con cuatro, cada una, mientras las agustinas recoletas sólo poseyeron uno. La mayoría se pueden considerar urbanos o semiurbanos por el carácter de la ciudad o villa donde se emplazan, ocupando casi siempre las zonas más céntricas. Esta misma posición en la trama fue un factor decisivo en el momento de la desamortización, cuyas medidas provocaron la desaparición de la mayoría de los edificios, pasando los solares a ser ocupados por espacios libres (plazas y jardines, edificios público de nueva planta (ayuntamientos, teatros o construcciones privadas. Sólo permanecen abiertos en la actualidad las Catalinas y Claras de La Laguna y las Concepcionistas de Garachico, todos en Tenerife.Female monasteries in the urbanism of the Canary lslands (c. XVI-XIX The presence of nunneries in the Canary Archipelago was uneven. The fifteen buildings that appear up to the Nineteenth Century are distributed in only nine towns, and three of the seven islands. The earliest foundations date back to the Sixteenth century, as the Canaries were conquered by the Crown of Castilla only in the previous Century. The “Franciscanas (Clarisas an Concepcionistas” with six monasteries,was the most numerous Order, followed by "Dominicas or Catalinas", and the "Bernardas" with four each, and finally the "Agustinas Recoletas" with only one. The majority can be considered urban or semi

  16. The CUORE and CUORE-0 experiments at Gran Sasso

    Directory of Open Access Journals (Sweden)

    Giachero A.

    2015-01-01

    Full Text Available The Cryogenic Underground Observatory for Rare Events (CUORE is an experiment to search for neutrinoless double beta decay (0νββ in 130Te and other rare processes. CUORE is a cryogenic detector composed of 988 TeO2 bolometers for a total mass of about 741 kg. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/(keV·kg·y will be reached, in five years of data taking CUORE will have an half life sensitivity around 1 × 1026 y at 90% C.L. As a first step towards CUORE a smaller experiment CUORE-0, constructed to test and demonstrate the performances expected for CUORE, has been assembled and is running. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented.

  17. The CUORE and CUORE-0 experiments at Gran Sasso

    Science.gov (United States)

    Giachero, A.; Artusa, D. R.; Avignone, F. T.; Azzolini, O.; Balata, M.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; Brofferio, C.; Bucci, C.; Cai, X. Z.; Camacho, A.; Caminata, A.; Canonica, L.; Cao, X. G.; Capelli, S.; Cappelli, L.; Carbone, L.; Cardani, L.; Casali, N.; Cassina, L.; Chiesa, D.; Chott, N.; Clemenza, M.; Copello, S.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Cushman, J. S.; Dafinei, I.; Dally, A.; Datskov, V.; Dell'Oro, S.; Deninno, M. M.; Di Domizio, S.; di Vacri, M. L.; Drobizhev, A.; Ejzak, L.; Fang, D. Q.; Farach, H. A.; Faverzani, M.; Fernandes, G.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M. A.; Freedman, S. J.; Fujikawa, B. K.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Gutierrez, T. D.; Haller, E. E.; Han, K.; Heeger, K. M.; Hennings-Yeomans, R.; Hickerson, K. P.; Huang, H. Z.; Kadel, R.; Kazkaz, K.; Keppel, G.; Kolomensky, Yu. G.; Li, Y. L.; Ligi, C.; Lim, K. E.; Liu, X.; Ma, Y. G.; Maiano, C.; Maino, M.; Martinez, M.; Maruyama, R. H.; Mei, Y.; Moggi, N.; Morganti, S.; Napolitano, T.; Nastasi, M.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; O'Donnell, T.; Orio, F.; Orlandi, D.; Ouellet, J. L.; Pagliarone, C. E.; Pallavicini, M.; Pattavina, L.; Pavan, M.; Pedretti, M.; Pessina, G.; Pettinacci, V.; Piperno, G.; Pira, C.; Pirro, S.; Pozzi, S.; Previtali, E.; Rampazzo, V.; Rosenfeld, C.; Rusconi, C.; Sala, E.; Sangiorgio, S.; Scielzo, N. D.; Sisti, M.; Smith, A. R.; Taffarello, L.; Tenconi, M.; Terranova, F.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Wielgus, L.; Wilson, J.; Winslow, L. A.; Wise, T.; Woodcraft, A.; Zanotti, L.; Zarra, C.; Zhang, G. Q.; Zhu, B. X.; Zucchelli, S.

    2015-05-01

    The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment to search for neutrinoless double beta decay (0νββ) in 130Te and other rare processes. CUORE is a cryogenic detector composed of 988 TeO2 bolometers for a total mass of about 741 kg. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/(keV·kg·y) will be reached, in five years of data taking CUORE will have an half life sensitivity around 1 × 1026 y at 90% C.L. As a first step towards CUORE a smaller experiment CUORE-0, constructed to test and demonstrate the performances expected for CUORE, has been assembled and is running. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented.

  18. Diversity, rarity and the evolution and conservation of the Canary Islands endemic flora

    Directory of Open Access Journals (Sweden)

    Reyes-Betancort, J. Alfredo

    2008-06-01

    Full Text Available The endemic vascular flora of the Canary Islands comprises over 680, taxa collectively accounting for more than 50% of the total native flora. To investigate geographical patterns of diversity within the endemic flora, distribution data from published sources together with other field observation and herbarium data were used to compile a data matrix comprising the distributions of ca. 90% of endemic taxa scored on a 10 × 10km UTM grid. WORLDMAP was then used to investigate patterns of endemic diversity, range size rarity (a measure of endemicity, phylogenetic diversity and threatened taxon richness. Endemic taxon richness was found to be highly heterogeneous across the archipelago, with cells containing between one and 139 taxa each (0.05-22.82% of endemic diversity. Patterns of variation in range size rarity and phylogenetic diversity were found to be largely congruent with endemic diversity, although some cells exhibited markedly higher range size rarity scores than would be predicted by their endemic diversity scores. In contrast, the pattern of endangered taxon richness across the archipelago differed markedly from endemic taxon richness. Many cells in Lanzarote, Fuerteventura and Gran Canaria exhibit higher endangered taxon richness scores than would be predicted from their endemic richness scores whereas in Tenerife, El Hierro, La Palma and La Gomera, the converse is generally true. The implications of the results both for understanding the evolution of Canary Island endemic diversity and for the conservation of the region’s unique and vulnerable flora are considered.La flora vascular endémica de las Islas Canarias comprende unos 680 táxones, lo que viene a representar más del 50% de la flora nativa. Con objeto de investigar patrones geográficos de diversidad en la flora endémica, se recopilaron los datos publicados que, junto con otras observaciones de campo y datos de herbario, sirvieron para completar una matriz de datos

  19. Validación de un cuestionario de frecuencia de consumo de alimentos adaptado para el estudio y seguimiento de la población adulta de las Islas Canarias

    Directory of Open Access Journals (Sweden)

    Armando Aguirre-Jaime

    2008-01-01

    Full Text Available Fundamento: Registrar los hábitos alimenticios exige de un método válido y fiable. El objetivo del estudio es validar el cuestionario de frecuencia de consumo de alimentos CDCFFQ, que es una adaptación de otro cuestionario, para estudiar la alimentación de la población adulta de Canarias. Métodos: El cuestionario CDC-FFQ fue administrado a 1.067 personas de la población general (PG y a 106 estudiantes universitarios (EU, de 19 a 30 años. El segundo grupo fue encuestado también sobre tres recordatorios de 24 horas. Se comparan los nutrientes según CDC-FFQ en PG y EU. Se estiman las correlaciones entre CDC-FFQ y los recordatorios para nutrientes y grupos de alimentos, y la concordancia de consumos de nutrientes y grupos de alimentos en los quintiles extremos, para los estudiantes universitarios. Resultados: Los valores medios entre nutrientes del CDC-FFQ entre PG, EU y población general con estudios universitarios no mostraron diferencias significativas excepto para la vitamina B12 (p=0.004 y la vitamina D (p=0,005. Entre el CDC-FFQ y la media de los tres recordatorios se obtuvieron correlaciones en el rango de 0,202-0,601 entre nutrientes ajustados por calorías consumidas para los estudiantes universitarios. Por grupos de alimentos las correlaciones oscilaron para CDC-FFQ y los recordatorios entre 0,243- 0,542. La concordancia de nutrientes osciló entre 39% y 100% y para grupos de alimentos entre 41% y 100%. Conclusiones: El cuestionario CDC-FFQ resulta válido para clasificar a los sujetos en los rangos relativos de su nivel de ingesta de alimentos y nutrientes, por lo que podría ser útil en estudios epidemiológicos con valoración de dieta en población canaria adulta.

  20. Mercado metropolitano de trabajo y desigualdades sociales en el Gran Santiago: ¿Una ciudad dual?

    Directory of Open Access Journals (Sweden)

    Carlos A. de Mattos

    2002-12-01

    Full Text Available Los cambios estructurales en los mercados metropolitanos de trabajo bajo los procesos de reestructuración-informacionalización-globalización, se han situado como un tema central para el estudio de la transformación de las ciudades durante las últimas décadas. Desde esta perspectiva, el presente trabajo analiza los impactos que los procesos de modernización capitalista en Chile han tenido sobre su mercado de trabajo y sobre la evolución de la distribución del ingreso, y sobre esta base, observa sus efectos sobre la estructuración socio-territorial del Gran Santiago, discutiendo especialmente la pertinencia de la tesis de la dualización para este caso particular. Para ello, en una primera parte se esbozan los rasgos fundamentales de esta tesis, se analizan los fundamentos con los que ha sido presentada y las causas que se le atribuyen. En la segunda parte se revisan las principales transformaciones producidas en esta fase de modernización capitalista en Chile, y la evolución de las desigualdades sociales y la segregación urbana en el Gran Santiago a la luz de las transformaciones producidas en su mercado de trabajo. En la tercera y última parte, se plantea la discusión sobre la aplicabilidad de la tesis de la dualización al caso chileno

  1. Granulometría, morfometría y mineralogía de polvo atmosférico que entra a la cuenca canaria: evidencia de retención de partículas de hierro en la capa de mezcla

    OpenAIRE

    Jaramillo-Vélez, Alfredo; Menéndez, Inmaculada; Alonso, Ignacio; Mangas, José; Hernández-León, Santiago

    2016-01-01

    El polvo atmosférico juega un papel importante en el clima y en los procesos oceánicos, particularmente la deposición del polvo sahariano es de suma importancia en la corriente canaria debido a que contiene minerales de hierro que actúan como fertilizante del océano. En este trabajo las partículas de polvo fueron caracterizadas mediante granulometría, morfometría y mineralogía, usando procesamiento de imágenes, microscopia electrónica (SEM-EDS). El polvo analizado en este estudio fue generado...

  2. Highlights of Spanish Astrophysics IV Proceedings of the Seventh Scientific Meeting of the Spanish Astronomical Society (SEA), held in Barcelona, Spain, September 12-15, 2006

    CERN Document Server

    Figueras, Francesca; Hernanz, Margarita; Jordi, Carme

    2007-01-01

    This volume documents the contributions presented at the Seventh Scientific Meeting of the Spanish Astronomical Society (Sociedad Española de Astronomía, SEA). The event bought together 301 participants who presented 161 contributed talks and 120 posters, the greatest numbers up to now. The fact that most exciting items of the current astronomical research were addressed in the meeting proofs the good health of the SEA, a consolidated organization founded fifteen years ago in Barcelona. Two plenary sessions of the meeting were devoted to the approved entrance of Spain as a full member of the European Southern Observatory (ESO) and to the imminent first light of the greatest telescope in the world, the GTC (Gran Telescopio de Canarias), milestones that will certainly lead the Spanish Astronomy in the next future.

  3. The Milano-Gran Sasso double beta decay experiment: toward a 20-crystal array

    International Nuclear Information System (INIS)

    Alessandrello, A.; Brofferio, C.; Bucci, C.; Cremonesi, O.; Fiorini, E.; Giuliani, A.; Nucciotti, A.; Pavan, M.; Pessina, G.; Previtali, E.; Zanotti, L.

    1996-01-01

    TeO 2 thermal detectors are being used by the Milano group to search for neutrinoless double beta decay of 130 Te. An upper limit for neutrinoless decay half life of 2.1 x 10 22 yr at 90% CL obtained with a 334 g TeO 2 detector has been previously reported. To improve the sensitivity of the experiment an array of twenty 340 g TeO 2 crystals will be realised in the next future. As a first step toward the realisation of that experiment a 4 crystal detector has been tested in the Gran Sasso refrigerator. Detector performances, data acquisition and analysis are discussed. (orig.)

  4. Contribución al estudio de los túneles ferroviarios de gran longitud

    OpenAIRE

    Beltrán Montero, Alberto

    2011-01-01

    En las últimas décadas estamos viviendo un fenómeno de expansión de las líneas ferroviarias de alta velocidad en todo el mundo. Los exigentes trazados de este tipo de líneas obligan a construir túneles de gran longitud y a grandes profundidades para poder atravesar los sistemas montañosos más importantes. La construcción de túneles de más de 20 kilómetros de longitud con coberteras superiores a los 1.000 metros, sigue siendo, a pesar del elevado número de proyectos de grandes túneles ejec...

  5. Historia natural de la oclusión aguda de gran arteria de la circulación cerebral anterior : serie clínica de 120 pacientes.

    OpenAIRE

    Hernández Pérez, María

    2012-01-01

    : Para estudiar la historia natural del ictus isquémico por oclusión de gran vaso de la circulación anterior se seleccionó una muestra prospectiva de pacientes con ictus agudo que no recibieron terapias de reperfusión en los que se confirmó una oclusión de gran vaso de la circulación anterior mediante Dúplex transcraneal. El 74% de los pacientes tuvo mal pronóstico. Los pacientes con oclusión de la a.carótida interna terminal y de la a.cerebral media proximal tuvieron peor pronóstico funciona...

  6. Oceanic Loading and Local Distortions at the Baksan, Russia, and Gran Sasso, Italy, Strain Stations

    Science.gov (United States)

    Milyukov, V. K.; Amoruso, A.; Crescentini, L.; Mironov, A. P.; Myasnikov, A. V.; Lagutkina, A. V.

    2018-03-01

    Reliable use of strain data in geophysical studies requires their preliminary correction for ocean loading and various local distortions. These effects, in turn, can be estimated from the tidal records which are contributed by solid and oceanic loading. In this work, we estimate the oceanic tidal loading at two European strain stations (Baksan, Russia, and Gran Sasso, Italy) by analyzing the results obtained with the different Earth and ocean models. The influence of local distortions on the strain measurements at the two stations is estimated.

  7. El chocolate antes de la Gran Guerra: una perspectiva desde los sistemas abiertos

    Directory of Open Access Journals (Sweden)

    Oscar M. Granados

    2017-08-01

    Full Text Available Este artículo evalúa la transformación del consumo global de chocolate en el periodo previo a la Gran Guerra (1870-1914. La investigación revela que el consumo de chocolate, más allá de una relación causal del mejoramiento en el ingreso y la búsqueda de un mejor estatus social, emergió de una interacción continua de diversos elementos como la innovación chocolatera, el emprendimiento, el comercio, la banca, la economía política y la política imperial. Por lo tanto, el consumo de chocolate funcionó como un sistema abierto.

  8. El intento de integración de Santo Domingo a la Gran Colombia (1821-1822

    Directory of Open Access Journals (Sweden)

    Germán A. de la Reza

    2015-09-01

    Full Text Available El presente artículo analiza los factores que influyeron en la decisión del “Estado de Hayti español” de integrarse a la Gran Colombia durante su breve existencia política de diciembre de 1821 a febrero de 1822. Los resultados de la investigación ponen de relieve la complejidad de la estrategia dominicana y agregan a las hipótesis vigentes la importancia de la convocatoria unionista y la identidad de la república fundada por Simón Bolívar en 1819.

  9. French Committee of Butane and Propane. 2015 activity report. Butane, propane, LPG - Immediately available solutions for the future

    International Nuclear Information System (INIS)

    2016-05-01

    This document presents the 2015 highlights of the French LPG fuels industry: 1 - 2015 LPG market; 2 - CFBP missions and 2015 highlights: promotion of LPG industry and uses, contribution to standards development, safety of industrial sites, promoting LPG specificities, safety of LPG transports and training, ensuring clients' installations safety, promoting LPG in the energy mix, promoting LPGc potential, public information

  10. GRANADA, CANARIAS, AMÉRICA: EL USO DE PRÁCTICAS ATERRORIZANTES EN LA PRAXIS DE TRES CONQUISTAS, 1482-1557

    Directory of Open Access Journals (Sweden)

    ANTONIO ESPINO LÓPEZ

    2012-12-01

    Full Text Available Nuestro propósito en este artículo es señalar algunos rasgos afines en los procesos de conquista de Granada, Canarias y América, remarcando cómo el comportamiento militar de los hispanos se basó notablemente en el uso de toda una nómina de prácticas aterrorizantes herederas de los modelos coercitivos propios del imperialismo romano. Por otro lado, esta reflexión sobre la problemática debe conducirnos a otras nuevas, señalando, más que las limitaciones de las crónicas a la hora de abordar tales cuestiones, cómo afrontan estas la narración de la violencia y remarcando una vez más la necesidad de huir de la cosmética de la conquista hispana de las Indias.The aim of this article is to call attention to the related characteristics in the conquest process of Granada, the Canaries and America, highlighting Spanish military behavior, which was mainly based on a wide range of terrifying practices taken from coercive models of the Roman Empire. This analysis of the problem should lead us to new problems, which show us how to deal with the accounts of violence, instead of focusing on the limitations of the chronicles themselves. This in turn also emphasizes the need to escape from the cosmetic image of the Spanish conquest of the Indies.

  11. Modelos para datos de la economía canaria en los dominios del tiempo y de la frecuencia

    Directory of Open Access Journals (Sweden)

    Gil-Fariña. María Candelaria

    2010-01-01

    Full Text Available La aplicación de algoritmos numéricos relacionados con la aproximación racional de funciones y las transformadas de Fourier y Wavelets han sido objeto de nuestras investigaciones. En este trabajo queremos presentar un breve resumen de los resultados conseguidos a nivel metodológico en su aplicación a la modelización de datos cronológicos. Los ilustramos a través de datos de la economía canaria que tienen que ver con dos sectores destacados de la economía isleña, a saber, el cultivo en declive del plátano que afecta a toda la región y el consumo de agua, siempre bien escaso, en la ciudad de Santa Cruz de Tenerife. En el primer caso, utilizamos modelos en el dominio del tiempo, en particular los modelos de Función de Transferencia en el contexto de la metodología Box-Jenkins, que han sido completados con la inclusión de las expectativas de los inputs. En el segundo caso, debido al interés por conocer los índices de frecuencia relevantes en la serie, hemos utilizado la transformada de wavelets. Así, obtenemos simultáneamente propiedades en el dominio del tiempo y en el dominio de la frecuencia, completando las conclusiones que se obtienen haciendo uso de la transformada de Fourier.

  12. Magnetochronology and stratigraphy at Gran Dolina section, Atapuerca (Burgos, Spain).

    Science.gov (United States)

    Parés, J M; Pérez-González, A

    1999-01-01

    The Atapuerca Site (Burgos, N. Spain) is an extensive archaeological site which has yielded numerous human fossil remains. The Gran Dolina section, one of the open-air excavations and subject of this study, consists of a sedimentary infilling of 18 m thickness in a gallery originated by karstification of the host Cretaceous limestones. In this paper we present new stratigraphic and paleomagnetic evidence for the age and the sedimentary environment of the karst infilling where the archaeological site is located. Paleomagnetic dating places the hominids (Aurora stratum) in the Matuyama reversed Chron, hence before 780 ka. We also report evidence for a short normal polarity event at the bottom of the section that we speculate as being Jaramillo or Kamikatsura. The early and well-constrained date of the Atapuerca archaeological site, its location in the cul-de-sac we know as Europe, its stratigraphic context, the abundant fossil remains and the stone tool industry make it one of the most important localities for the question of the earliest human occupation in Europe. Copyright 1999 Academic Press.

  13. The BOOTES experiment in support of the Gran Telescopio Canarias (GTC) in the study of the high energy Universe

    Czech Academy of Sciences Publication Activity Database

    Castro Cerón, J. M.; de Ugarte Postigo, A.; García-Dabó, C. E.; Mateo Sanguino, T. J.; Páta, P.; Bernas, M.; Jelínek, Martin; Hudec, René; Berná, J. A.; Gorosabel, J.; Más-Hesse, J. M.; Castro-Tirado, A.J.

    2003-01-01

    Roč. 16, - (2003), s. 77-80 ISSN 0035-001X. [Science with the GTC 10m telescope. Granada, 05.02.2003-08.02.2003] Institutional research plan: CEZ:AV0Z1003909 Keywords : astrometry * gamma-ray rays * bursts Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics Impact factor: 0.203, year: 2003

  14. Balón hidrostático de gran diámetro en coledocolitiasis Large hydrostatic ballon for choledocolithiasis

    Directory of Open Access Journals (Sweden)

    J. Espinel

    2007-01-01

    Full Text Available Objetivo: valorar la eficacia y seguridad de la dilatación hidrostática con balones de gran diámetro en el tratamiento de la coledocolitiasis en pacientes con factores que dificultan o hacen peligrosa la extracción, por las características de los cálculos o de la anatomía peripapilar. Diseño: prospectivo. Pacientes: estudio que incluye 22 pacientes a los que se realizó dilatación hidrostática de la papila con balones de gran diámetro entre junio de 2005 y abril de 2006 por presentar cálculos de gran tamaño, múltiples, colédoco distal afilado, papila peri-/intradiverticular, esfinterotomía previa o Billroth-II. Se emplearon dilatadores CRE de esófago, píloro y colon (Boston Scientific Corporation de diámetros entre 12 y 20 mm. Resultados: se consiguió la extracción de los cálculos en una sesión en todos los pacientes (100%. La mayor parte de las exploraciones (73% no requirieron tiempos prolongados para la extracción. No hubo complicaciones. Se detectó hiperamilasemia en el 18% de los pacientes. Conclusiones: la dilatación hidrostática de la papila con balones de gran diámetro es una técnica sencilla, eficaz y segura en la extracción de cálculos difíciles de la vía biliar, sin incrementar el tiempo de la exploración, ni las complicaciones, reduciendo la necesidad de litotricia. Son necesarios estudios adicionales para definir la utilidad de esta técnica.Aim: to assess the efficacy and safety of hydrostatic dilatation with large balloons for the treatment of choledocolithiasis in patients with difficult or risky extraction due to stone characteristics or peripapillary anatomy. Design: prospective. Patients: this study included 22 patients in whom a hydrostatic dilatation of the papilla with large balloons was performed between June 2005 and April 2006. Patients had multiple large stones, tapered distal common bile duct, peri-/intradiverticular papilla, previous sphincterotomy, or Billroth-II surgery. Esophageal

  15. Chemical Abundances of Planetary Nebulae in the Substructures of M31. II. The Extended Sample and a Comparison Study with the Outer-disk Group

    Science.gov (United States)

    Fang, Xuan; García-Benito, Rubén; Guerrero, Martín A.; Zhang, Yong; Liu, Xiaowei; Morisset, Christophe; Karakas, Amanda I.; Miller Bertolami, Marcelo M.; Yuan, Haibo; Cabrera-Lavers, Antonio

    2018-01-01

    We report deep spectroscopy of 10 planetary nebulae (PNe) in the Andromeda Galaxy (M31) using the 10.4 m Gran Telescopio Canarias (GTC). Our targets reside in different regions of M31, including halo streams and the dwarf satellite M32, and kinematically deviate from the extended disk. The temperature-sensitive [O III] λ4363 line is observed in all PNe. For four PNe, the GTC spectra extend beyond 1 μm, enabling the explicit detection of the [S III] λ6312 and λλ9069, 9531 lines and thus determination of the [S III] temperature. Abundance ratios are derived and generally consistent with AGB model predictions. Our PNe probably all evolved from low-mass (Palma. The observations presented in this paper are associated with GTC programs #GTC66-16A and #GTC25-16B.

  16. The GENIUS-Test-Facility and the HDMS Detector in Gran Sasso

    International Nuclear Information System (INIS)

    Klapdor-Kleingrothaus, H.V.; Krivosheina, I.V.

    2005-01-01

    The first four naked high purity Germanium detectors (10 kg) were installed successfully in liquid nitrogen in the GENIUS-Test-Facility (GENIUS-TF) in the Gran Sasso Underground Laboratory on May 5, 2003. This is the first time ever that this novel technique aiming at extreme background reduction in search for rare decays is going to be tested underground. First results on the background are presented. The GENIUS-TF experiment, aims to search for the annual modulation of the Dark Matter signal using 40 kg of naked-Ge detectors in liquid nitrogen. It should be able to confirm the DAMA result within two or three years of measuring time. HDMS (Heidelberg Dark Matter Search) is the only experiment worldwide, operating an enriched 73 Ge detector and is looking for spin-dependent WIMP-neutron interactions. Results for the measurement Febr. 2001 - July 2003 are presented. They improve the best existing present limits for low WIMP masses

  17. The GENIUS-Test-Facility and the HDMS Detector in Gran Sasso

    Energy Technology Data Exchange (ETDEWEB)

    Klapdor-Kleingrothaus, H.V. [Max-Planck-Institut fuer Kernphysik, P.O. Box 10 39 80, D-69029 Heidelberg (Germany)]. E-mail: H.Klapdor@mpi-hd.mpg.de; Krivosheina, I.V. [Max-Planck-Institut fuer Kernphysik, P.O. Box 10 39 80, D-69029 Heidelberg (Germany)

    2005-08-15

    The first four naked high purity Germanium detectors (10 kg) were installed successfully in liquid nitrogen in the GENIUS-Test-Facility (GENIUS-TF) in the Gran Sasso Underground Laboratory on May 5, 2003. This is the first time ever that this novel technique aiming at extreme background reduction in search for rare decays is going to be tested underground. First results on the background are presented. The GENIUS-TF experiment, aims to search for the annual modulation of the Dark Matter signal using 40 kg of naked-Ge detectors in liquid nitrogen. It should be able to confirm the DAMA result within two or three years of measuring time. HDMS (Heidelberg Dark Matter Search) is the only experiment worldwide, operating an enriched {sup 73}Ge detector and is looking for spin-dependent WIMP-neutron interactions. Results for the measurement Febr. 2001 - July 2003 are presented. They improve the best existing present limits for low WIMP masses.

  18. La aplicación de la música tradicional canaria en las aulas: un reto didáctico para el profesorado

    Directory of Open Access Journals (Sweden)

    Delgado, José C.

    2005-05-01

    Full Text Available La música tradicional canaria constituye uno de los fenómenos folklóricos más interesantes en cuanto a su diversidad y calidad, y ocupa un lugar importante dentro del panorama musical del estado, no sólo por el número de cantos y bailes que ha aportado al rico y variado folklore musical español, sino también por la cantidad de investigaciones y datos que de ella se han recogido. Son numerosas las razones que justifican el uso de la música tradicional en las aulas, así como los valores que aporta la música de tradición oral y su aplicación con fines didácticos. Los contenidos canarios son esenciales a la hora de estudiar y conocer la cultura universal partiendo del entorno. La mayoría de los géneros musicales canarios nos proporcionan un caudal importante de textos, melodías y danzas que son susceptibles de ser utilizados en el aula. Sin embargo, la aplicación en el aula de la música tradicional constituye un reto para el profesorado de música que se enfrenta muchas veces a un lenguaje desconocido.

  19. FITOCENOSIS EN LOS MOGOTES DE LA GRAN MESETA DE GUANTÁNAMO, CUBA ORIENTAL

    Directory of Open Access Journals (Sweden)

    Reyes Orlando

    2013-07-01

    Full Text Available Los mogotes de la Gran Meseta de Guantánamo están constituidos por calizas durasde la Formación Charco Redondo. La temperatura del aire varía entre 22 y 240C yllueve de 1 200 a 1 400 mm al año. Mediante la metodología de la Escuela Zurich- Montpellier se describe un nuevo orden, Coccothrinaci leonis - Guapiretaliarufescentis, con su alianza Coccothrinaci leonis - Guapirion rufescentis y tresasociaciones. Bactrio cubensis - Podocarpodetum ekmanii y Phyllantho epiphyllanthi- Tabebuietum myrtifoliae que se establecen en la parte superior de los mogotes y laasociación Pileo fruticulosae - Thelypteridetum alatae en fragmentos verticales, lasdos primeras tienen una bien desarrollada estera radical donde se produce el reciclajede nutrientes de este ecosistema

  20. La Restauración del Templo I “Gran Jaguar” de Tikal (Guatemala

    Directory of Open Access Journals (Sweden)

    Gaspar Muñoz Cosme

    1997-05-01

    Full Text Available La ciudad maya de Tikal, que alcanzó su máximo explendor en los siglos VII y VIII de nuestra era, ha sido declarada por la UNESCO Patrimonio Cultural de la Humanidad en 1979 y Monumento Universal en 1986. El Templo I de Tikal, tambien conocido con el nombre de Templo del “Gran Jaguar”, constituye hoy en día el emblema de esta ciudad maya de Guatemala. Gaspar Muñoz Cosme, arquitecto, explica los interesantes trabajos de restauración de este Templo I, desarrollados entre 1992 y 1996, planteando en las conclusiones los costosos problemas de conservación propios de estas arquitecturas, y los objetivos que debe contemplar un programa restaurador.

  1. Evolución de la mortalidad y de los años de vida perdidos prematuramente relacionados con el consumo de alcohol en las Islas Canarias (1980-1998

    Directory of Open Access Journals (Sweden)

    Bello L.M.

    2003-01-01

    Full Text Available Objetivo: Describir la mortalidad y los años de vida perdidos prematuramente (AVPP relacionados con el alcohol en las Islas Canarias durante el período 1980-1998. Métodos: Las defunciones por edad, sexo y causa desde 1980 a 1998 se obtuvieron del Instituto Nacional de Estadística (Movimiento Natural de la Población. Se calculó la proporción de muertes relacionadas con el alcohol para cada año, sexo y grupo de edad a partir de la fracción atribuible poblacional propuesta por los Centers for Disease Control (Estados Unidos. Para cada categoría diagnóstica, los años de vida perdidos prematuramente relacionados con el alcohol fueron calculados multiplicando las defunciones por la fracción poblacional en grupos quinquenales de edad para ambos sexos hasta la edad de 65 años. Resultados: Durante el período 1980-1998, el número de fallecimientos por causas relacionadas con el alcohol fue de 12.614, con un promedio del 6,4% anual y una razón varón/mujer de aproximadamente 2:1. Las neoplasias malignas, las enfermedades digestivas y los accidentes no intencionales relacionados con el alcohol presentan las mayores tasas de mortalidad y de AVPP tanto en varones como en mujeres; en particular, los accidentes no intencionales generan AVPP por encima de las otras causas, lo que supone el 50,6% del total de AVPP por causas relacionadas con el alcohol en varones y el 55,5% en mujeres. Durante el período de estudio, la cirrosis hepáticas y otras enfermedades crónicas del hígado (CIE 571 van decreciendo paulatinamente en los varones y se mantienen en las mujeres. Conclusiones: En el ámbito y período de estudio (Islas Canarias, 1980-1998, se ha observado que el porcentaje de fallecidos por causas relacionadas con el alcohol es elevado, incluyendo la mortalidad por cirrosis hepática. Por tanto, sería necesario potenciar el desarrollo de estrategias educativas y otras dirigidas para controlar su consumo, sobre todo en los jóvenes.

  2. El empleo del yeso en Gran Bretaña

    Directory of Open Access Journals (Sweden)

    Foster, N.

    1965-03-01

    Full Text Available Not availableSección l.-Introducción Resume brevemente la historia del yeso en Gran Bretaña, yacimientos y demanda de este producto después de la guerra. Sección Il.-Tipos de yeso Describe los diferentes tipos y grados de densidad, ligeros premezclados y sus usos principales. Se comparan las características de los yesos de acabado. También se introducen los yesos para paredes delgadas. Sección lll.-Especificaciones para enlucidos Se resumen, en forma de tabla, sistemas convenientes de enlucidos de yeso para distintos soportes. Se indican las propiedades de los soportes que influencian en la elección de la especificación. También se muestran las especificaciones de recubrimientos intermedios y de acabado, teniendo en cuenta el tipo de soporte. Asimismo se incluyen especificaciones para una sola capa para fondos adecuados. Sección IV.-Revoco de hormigón denso Se examinan los factores que afectan la adherencia del yeso para alisar hormigón denso, así como los resultados del trabajo experimental y las investigaciones «in situ» dirigidas por la «Building Research Station». Además, se indican medidas para mejorar la adherencia del yeso al hormigón.

  3. Long-term climate record inferred from early-middle Pleistocene amphibian and squamate reptile assemblages at the Gran Dolina Cave, Atapuerca, Spain.

    Science.gov (United States)

    Blain, Hugues-Alexandre; Bailon, Salvador; Cuenca-Bescós, Gloria; Arsuaga, Juan Luis; Bermúdez de Castro, José Maria; Carbonell, Eudald

    2009-01-01

    The Gran Dolina cave site is famous for having delivered some of the oldest hominin remains of Western Europe (Homo antecessor, ca. 960 ka). Moreover, the evidence of lithic industries throughout the long vertical section suggests occupation on the part of hominins from the latest early Pleistocene (levels TD3/4, TD5, and TD6) to the late middle Pleistocene (level TD10). The Gran Dolina Sondeo Sur (TDS) has furnished a great number of small-vertebrate remains; among them some 40,000 bones are attributed to amphibians and squamates. Although they do not differ specifically from the extant herpetofauna of the Iberian Peninsula, the overlap of their current distribution areas (= mutual climatic range method) in Spain can provide mean annual temperatures (MAT), the mean temperatures of the coldest (MTC) and warmest (MTW) months, and mean annual precipitation (MAP) estimations for each sub-level, and their change can be studied throughout the sequence. Results from the squamate and amphibian study indicate that during hominin occupation the MAT (10-13 degrees C) was always slightly warmer than at present in the vicinity of the Gran Dolina Cave, and the MAP (800-1000mm) was greater than today in the Burgos area. Climatic differences between "glacial" and "interglacial" phases are poorly marked. Summer temperatures (MTW) show stronger oscillations than winter temperatures (MTC), but seasonality remains almost unchanged throughout the sequence. These results are compared with those for large mammals, small mammals, and pollen analysis, giving a scenario for the palaeoclimatic conditions that occurred during the early to middle Pleistocene in Atapuerca, and hence a scenario for the hominins that once lived in the Sierra de Atapuerca.

  4. Presentación de la cohorte "CDC de Canarias": objetivos, diseño y resultados preliminares

    Directory of Open Access Journals (Sweden)

    Antonio Cabrera de León

    2008-01-01

    Métodos: Estudio prospectivo con muestreo aleatorio en población general, en el que participaron 6.729 personas entre los años 2000 y 2005 (edad 18-75 años. Se les realizó antropometría y se extrajo sangre para almacenamiento de muestras séricas y genéticas. Mediante cuestionario se recogió: hábitos dietéticos, actividad física, antecedentes personales y familiares de enfermedad, exposición a FR laborales o ambientales, tabaquismo, etc. Resultados: La prevalencia de obesidad es casi del 30%, sin diferencias entre sexos, pero el sobrepeso afecta más a los varones (45 vs. 33%; p<0'001, los cuales presentan también mayor prevalencia de diabetes (12 vs. 10%; p =0'005, hipertensión (43 vs. 33%; p<0'001, ingesta excesiva de alcohol (13 vs. 2%; p<0'001 y falta de protección solar (46 vs. 18%; p<0'001. En las mujeres es más frecuente la exposición a bajos niveles de colesterol HDL (37 vs. 30%; p<0'001 y al sedentarismo (71 vs. 55%; p<0'001. La exposición a los FR estudiados, entre ellos la pobreza, es mayor en edades avanzadas, salvo el tabaquismo (26% que es mayor en edades jóvenes. La estimación de riesgos relativos de exposición a los factores de riesgo cardiovascular y de cáncer es más alta en las clases sociales pobres. Conclusiones: La actual población adulta de Canarias presenta una elevada prevalencia de exposición a factores de riesgo para las enfermedades cardiovasculares, la diabetes y el cáncer, destacando especialmente el sobrepeso, la obesidad y el sedentarismo.

  5. EFECTO DE LA MICORRIZACIÓN Y LA FERTILIZACIÓN EN LA ACUMULACIÓN DE BIOMASA EN PLANTAS DE BANANO (Musa AAA cv. Gran Enano (Musaceae MICORRHIZATION AND FERTILIZATION EFFECT ON BIOMASS ACCUMULATION IN BANANA PLANTS (Musa AAA cv. Gran Enano (Musaceae

    Directory of Open Access Journals (Sweden)

    Carmen Elena Usuga Osorio

    2008-06-01

    Full Text Available Bajo condiciones de invernadero (ubicado en el municipio de Bello - Antioquia (Colombia se evaluó el efecto independiente y combinado de los factores: tipo de inóculo de Hongos Micorriza Arbuscular (HMA, fertilización y aplicación de materia orgánica sobre el porcentaje de asociación de HMA en plantas de banano (Musa AAA cv. Gran Enano, así como en la acumulación de materia seca foliar y radical. Dentro del factor tipo de inóculo, se evaluaron inóculos nativos, de agroecosistemas bananeros y ecosistemas naturales del Urabá (Antioquia-Colombia, uno comercial y la especie Acaulospora morrowiae; con respecto a la fertilización se probó la mitad, completa y dos veces la dosis de la fertilización recomendada de acuerdo al análisis de suelo y a los requerimientos de la planta, y cada uno de estos factores con y sin la aplicación de materia orgánica; como testigos se usaron, la no aplicación del respectivo factor. Se usó como material vegetal plantas de banano micropropagadas del grupo Cavendish cv. Gran Enano (AAA. El sustrato utilizado para el crecimiento de las plantas de banano se compuso de suelo y arena en relación 70/30 v/v. El suelo se obtuvo de la granja experimental de Augura, ubicado en el municipio de Carepa en la región de Urabá. Los resultados encontrados, muestran que los factores que más incidieron en la asociación así como en la acumulación de biomasa en toda la planta son la micorrización y la adición de materia orgánica. Los resultados, también muestran un comportamiento positivo respecto al uso de inóculos nativos de agroecosistemas bananeros, con bajas aplicaciones de fertilizantes.The effects of independent an combined factors such as inoculum type, fertilization and organic matter application on the percentage of association of ‘H.M.A’ in banana plants (Musa AAA cv. ‘Gran Enano’, and on the accumulation of leaves and rrots material, were evaluated under greenhouse conditions. Natives samples

  6. The hope of the universe: Bolivarianism in the era of Gran Venezuela (1974-1983

    Directory of Open Access Journals (Sweden)

    Tomás Straka

    2017-09-01

    Full Text Available This work reviews Venezuelan Bolivarianism and its relationship with the political discourses and projects during what has been called “Gran Venezuela” (Great Venezuela, 1974- 1983. During this period, Venezuela enjoyed a combination of two decades of democratic stability and high oil prices, becoming an exceptionally prosperous, free and peaceful country in Latin-America. In this context, democratic governments used political Bolivarian historicism in order to legitimize their apparent success as proof that they were complying with the vision set out by Simón Bolívar, traditionally associated with conservative thought and dictatorship. It also used Bolivarianism to project its status as an emerging power in the Third World.

  7. Propuesta de metodología de diseño, observación y cálculo de redes topográficas para la construcción de túneles de gran longitud para ferrocarriles de alta velocidad

    OpenAIRE

    Velasco Gomez, Jesus

    2011-01-01

    En los últimos años se han venido realizando proyectos de túneles de gran longitud para ferrocarriles de alta velocidad de gran importancia tanto en España como en el resto del Mundo, no existiendo una metodología que comprenda toda las actuaciones que hay que llevar a cabo dentro del campo de la geodesia y topografía a la hora de ejecutar un proyecto de esta envergadura. Existen además proyectos futuros en los que se tienen que construir túneles de gran longitud. La finalidad de esta pr...

  8. COMPETITIVIDAD Y CALIDAD EN LOS DESTINOS TURÍSTICOS DE SOL Y PLAYA. EL CASO DE LAS ISLAS CANARIAS

    Directory of Open Access Journals (Sweden)

    J. Rosa Marrero Rodríguez

    2008-01-01

    Full Text Available El objeto del artículo es conocer y comparar el nivel de competitividad que presentan las cuatro islas turísticas canarias más importantes, a través de la combinación de diferentes variables de aproximación al mismo. Todo ello se plantea en el contexto más general de discusión de los mecanismos de reconversión y reposicionamiento en los destinos tradicionales de sol y playa a través de la implementación de elementos de calidad en el negocio turístico. Para acercarnos a la medición de la competitividad se ha usado una metodología doble: a través de las estadísticas del gasto turístico, los niveles de ocupación y la evolución del número de plazas y de turistas. Y también a través de un pequeño estudio de casos en Internet, donde se han analizado los precios para dos paquetes turísticos característicos. Los resultados coinciden en indicar que, a pesar de la estrategia de calidad adoptada por Lanzarote, esto no parece traducirse en una mayor rentabilidad económica para el sector. En definitiva, a pesar de la proclamada importancia de la calidad como factor clave de competitividad, no está claro que el mercado esté dispuesto a recompensar a aquellos destinos que apuestan con precios mayores por la calidad.

  9. Teatro Nacional de Londres Gran Bretaña

    Directory of Open Access Journals (Sweden)

    Lasdun, Denys

    1979-08-01

    Full Text Available The building located by the Thames, near Waterloo Bridge, houses three theatres: the Olivier, the Lyttelton and the Cottesloe, each provided with all facilities required, such as actors' dressing rooms, rehearsal rooms, offices, costuming and wigs stores, ample lobbies, restaurants, bars, car park and other amenities. The entire structure is reinforced concrete throughout the building and the outside walls of this important complex are also a whitish concrete. The two stage towers stand out gracefully from the ample, step terraced lower body creating shadowed areas and visual facets of great beauty visible from the not too distant City: the River and Waterloo Bridge at one side, and St. Paul's Cathedral at the other.

    Situado en las orillas del Támesis y junto al puente de Waterloo comprende tres teatros: Olivier, Lyttelton y Cottesloe dotados de todos los servicios auxiliares necesarios, tales como camerinos, salas de ensayo, despachos, almacenes de vestuarios, pelucas, etc.; amplios vestíbulos, restaurantes, bares, y aparcamientos de automóviles. Toda la estructura resistente es de hormigón armado y la fisonomía exterior del importante complejo es igualmente de hormigón blanquecino. Las dos torres de escenarios destacan airosamente de la parte baja, amplía y con terrazas escalonadas, que crean zonas de sombra y facetas plásticas, de gran belleza, de cara a la ciudad, más o menos próxima: el río y el puente por un lado y la Catedral de San Pablo por otro.

  10. Diffuse CO2 degassing studies to reveal hidden geothermal resources in oceanic volcanic islands: The Canarian archipelago case study

    Science.gov (United States)

    Rodríguez, F.; Perez, N. M.; García-Merino, M.; Padron, E.; Melián, G.; Asensio-Ramos, M.; Hernandez Perez, P. A.; Padilla, G.; Barrancos, J.; Cótchico, M. A.

    2016-12-01

    The Canary Islands, owing to their recent volcanism, are the only Spanish territory with potential high enthalpy geothermal resources. The final goal of geothermal exploration in a specific area is to locate and define the size, shape, structure of hidden geothermal resources, and determine their characteristics (fluid type, temperature, chemical composition an ability to produce energy). At those areas where there is not any evidence of endogenous fluids manifestations at surface, that traditionally evidence the presence of an active geothermal system) the geochemical methods for geothermal exploration must include soil gas surveys. This is the case of five mining licenses for geothermal exploration in the Canay Islands, four in Tenerife and one in Gran Canaria Island. We report herein the results of diffuse CO2 emission studies in the five mining licenses during 2011-2014. The primary objective of the study was to sort the possible geothermal potential of these five mining licenses, thus reducing the uncertainty inherent to the selection of the areas with highest geothermal potential for future exploration works. The criterion used to sort the different areas was the contribution of volcano-hydrothermal CO2 in the degassing at each study area. Several hundreds of measurements of diffuse CO2 emission, soil CO2 concentration and isotopic composition were performed at each study area. Based in three different endmembers (biogenic, atmospheric and deep-seated CO2) with different CO2 concentrations (100, 0.04 and 100% respectively) and isotopic compositions (-20, -8 and -3 per mil vs. VPDB respectively) a mass balance to distinguish the different contribution of each endmember in the soil CO2 at each sampling site was made. The percentage of the volcano-hydrothermal contribution in the current diffuse CO2 degassing was in the range 2-19%.The Abeque mining license, that comprises part of the north-west volcanic rift of Tenerife, seemed to show the highest geothermal

  11. ESTUDIO SOBRE LOS ABSTRACTS DE ARTÍCULOS DE INVESTIGACIÓN INFORMÁTICOS: EVIDENCIALIDAD Y MODALIDAD TEXTUAL

    Directory of Open Access Journals (Sweden)

    Ivalla Ortega Barrera

    2010-10-01

    Full Text Available Evidentiality and textual modality are widely debated fi eld categories within the areas of linguistics and textual stylistics. The attitude of the author towards the topic indicates its commitment with the established proposition. In this way, his attitude can have either a rational/evaluative character (objective or an emotional/expressive character (subjective, which thus conveys the tonality of the discourse. The present paper, which forms part of the research project "Evidentiality in a multidisciplinary corpus of research papers in English" of the University of Las Palmas de Gran Canaria, focuses on the genre "abstracts of research papers applied to computer science". In this paper we will analyse two types of characteristic functions: the communicative stamp of the markers which correspond to textual modality, both objective and subjective according to their relationship with the evidential and judgement markers, and the frequency of its use in the genre we are studying.

    La evidencialidad y la modalidad textual son categorías de campo muy debatidas dentro de la lingüística y la estilística textual. La actitud del autor hacia el texto indica el grado de compromiso que éste tiene en relación con su proposición. De este modo, su actitud puede tener carácter racional-valorativo (objetivo o carácter emotivo-expresivo (subjetivo, marcando así la tonalidad del discurso. El presente trabajo,
    enmarcado en el proyecto de investigación "Evidencialidad en un corpus multidisciplinar de artículos científi co-técnicos en lengua inglesa" de la Universidad de Las Palmas de Gran Canaria, se centra en el género "abstracts de artículos de investigación aplicados a la informática", y analiza dos tipos de función característicos: la carga comunicativa de los marcadores correspondientes a la modalidad textual, tanto objetiva como subjetiva en cuanto a su relación con los marcadores evidenciales y de juicio, y su frecuencia de uso

  12. Juan Bautista Say en los planes de estudio de economía política de la naciente Gran Colombia

    Directory of Open Access Journals (Sweden)

    Emmanuel Borgucci

    2014-01-01

    Full Text Available Los procesos de independencia tanto de la América septentrional y meridional tuvieron como banderas de lucha su rechazo a las políticas económicas provenientes de tanto de España como de Inglaterra. Este trabajo intenta mostrar que la introducción de un autor como Jean-Baptiste Say responde al intento de los libertadores, al menos de la Gran Colombia, de introducir una literatura que representase, desde el punto de vista económico, las ideas liberales y republicanas. Se concluye que quienes promovieron el proceso de independencia, al menos de la Gran Colombia, de manera apresurada o no, dentro del ordenamiento académico conocido como Plan de Estudios de 1826, el estudio de autores basados en los principios del liberalismo económico y en especial de Jean-Baptiste Say por la facilidad de exposición de sus ideas relacionadas más por su forma de exposición, sus ideas en torno a la propiedad, de los impuestos y la deuda publica que por sus aportes en teoría del valor o su teoría de los mercados.

  13. Leptospira interrogans en una población canina del Gran Buenos Aires: variables asociadas con la seropositividad

    OpenAIRE

    Rubel Diana; Seijo Alfredo; Cernigoi Beatriz; Viale Alberto; Wisnivesky-Colli Cristina

    1997-01-01

    Se determinó la seroprevalencia de leptospirosis en una población canina suburbana con el objeto de analizar la asociación entre distintas variables individuales y ambientales y la seropositividad a leptospirosis. El estudio, de diseño transversal, se llevó a cabo durante julio de 1992 en un barrio del Gran Buenos Aires en el que viven unos 9 500 habitantes y una población canina de unos 2 000 animales. Se estudió una muestra aleatoria de 223 perros, de cada uno de los cuales se obtuvo una mu...

  14. Applicability of T-S algorithms to the Canary Islands region

    Directory of Open Access Journals (Sweden)

    A. Marrero-Díaz

    2001-07-01

    Full Text Available The high cost of oceanographic cruises often makes it advisable to use opportunity vessels for simple measurements, such as determining the temperature of the water column with expandable bathythermographs (XBT. In this work we examine the goodness and reliability of a method aimed at obtaining the maximum possible information from XBT data, and we apply it to the Canary Islands region. It consists in calculating analytic relations between temperature and salinity from historical conductivity-temperature-depth (CTD data for the region, which are then used to hindcast/forecast the salinity and density distribution, as well as the distribution of other inferred quantities such as velocity. A hindcasting is carried out using direct independent temperature measurements obtained from a hydrographic cruise south of the island of Gran Canaria. At depths greater than 100-150 m the results show good agreement with the calculations obtained from CTD in situ data.

  15. The GTC: a convenient test bench for ELT demonstrations

    Science.gov (United States)

    Rodriguez Espinosa, Jose M.; Hammersley, Peter L.; Martinez-Roger, Carlos

    2004-07-01

    The Gran Telescopio Canarias (GTC) is, being assembled at the Observatorio del Roque de los Muchachos (ORM) in the island of La Palma. First light is expected for early 2005 with the first science observations late in 2005. The GTC, being a segmented primary mirror telescope, could be employed for testing several technological aspects relevant to the future generation of Extremely Large Telescopes (ELT). In the short term, the mass production of aespheric mirror segments can be examined in detail and improvements made along the way, or planned for the future. Indeed the GTC segments are now entering into a chain production scheme. Later on, different strategies for the control aspects of the primary mirror can be explored to optimize the optical performance of segmented telescopes. Moreover, the entire GTC active optics can offer a learning tool for testing various strategies and their application to ELTs.

  16. Renewable based hydrogen energy projects in remote and island communities

    International Nuclear Information System (INIS)

    Miles, S.; Gillie, M.

    2009-01-01

    Task 18 working group of the International Energy Agency's Hydrogen Implementing Agreement has been evaluating and documenting experiences with renewable based hydrogen energy projects in remote and island communities in the United Kingdom, Canada, Norway, Iceland, Gran Canaria, Spain and New Zealand. The objective was to examine the lessons learned from existing projects and provide recommendations regarding the effective development of hydrogen systems. In order to accomplish this task, some of the drivers behind the niche markets where hydrogen systems have already been developed, or are in the development stages, were studied in order to determine how these could be expanded and modified to reach new markets. Renewable based hydrogen energy projects for remote and island communities are currently a key niche market. This paper compared various aspects of these projects and discussed the benefits, objectives and barriers facing the development of a hydrogen-based economy

  17. Spectroscopy of 10 γ -Ray BL Lac Objects at High Redshift

    Energy Technology Data Exchange (ETDEWEB)

    Paiano, Simona; Falomo, Renato [INAF, Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122 Padova (Italy); Landoni, Marco [INAF, Osservatorio Astronomico di Brera, Via E. Bianchi 46, I-23807 Merate (Italy); Treves, Aldo [Università degli Studi dell’Insubria, Via Valleggio 11, I-22100 Como (Italy); Scarpa, Riccardo [Instituto de Astrofisica de Canarias, C/O Via Lactea, s/n E-38205 La Laguna, Tenerife (Spain)

    2017-08-01

    We present optical spectra with high signal-to-noise ratio of 10 BL Lac objects detected at GeV energies by the Fermi satellite (3FGL catalog), which previous observations suggested are at relatively high redshift. The new observations, obtained at the 10 m Gran Telescopio Canarias, allowed us to find the redshift for J0814.5+2943 ( z = 0.703), and we can set a spectroscopic lower limit for J0008.0+4713 ( z > 1.659) and J1107.7+0222 ( z > 1.0735) on the basis of Mg ii intervening absorption features. In addition we confirm the redshifts for J0505.5+0416 ( z = 0.423) and J1450+5200 ( z > 2.470). Finally we contradict the previous z estimates for five objects (J0049.7+0237, J0243.5+7119, J0802.0+1005, J1109.4+2411, and J2116.1+3339).

  18. Abordaje biauricular transeptal superior en el tratamiento quirúrgico del mixoma auricular izquierdo de gran tamaño

    Directory of Open Access Journals (Sweden)

    Salvador Torregrosa

    2009-01-01

    Full Text Available Evitar la fragmentación del tejido mixoide durante el acto quirúrgico y resecar todo el espesor del septo interauricular con implantación tumoral son las dos claves para evitar las graves complicaciones de embolia peroperatoria y recidiva postoperatoria en el tratamiento quirúrgico del mixoma auricular izquierdo. La vía transeptal superior nos ha permitido, en tres pacientes, la extirpación en bloque de mixomas de gran tamaño con facilidad y sin complicaciones.

  19. Long term seismic noise acquisition and analysis with tunable monolithic horizontal sensors at the INFN Gran Sasso National Laboratory

    Science.gov (United States)

    Acernese, F.; Canonico, R.; De Rosa, R.; Giordano, G.; Romano, R.; Barone, F.

    2012-10-01

    In this paper we present the scientific data recorded by tunable mechanical monolithic horizontal seismometers located in the Gran Sasso National Laboratory of the INFN, within thermally insulating enclosures onto concrete slabs connected to the bedrock. The main goals of this long term test are a preliminary seismic characterization of the site in the frequency band 10-7÷1Hz and the acquisition of all the relevant information for the optimization of the sensors.

  20. Toughness increase of self compacting concrete reinforced with polypropylene short fibers

    Directory of Open Access Journals (Sweden)

    Melián, G.

    2010-12-01

    Full Text Available Increases in bending tests by the addition of low volume fractions of Polypropylene (PP Short Fibers PP. These toughness increases are similar to those attained by Fiber Reinforced Concrete (FRC referred elsewhere as Engineered Cementitious Composites (ECC, having some ductility and strain hardening in direct tensile and flexural tests. Concretes mixtures were manufactured using natural pozzolanic blended Portland cement, volcanic crushed coarse aggregates and fine sand from Sahara desert dunes (0-1 mm from Canary Islands quarries and sand reservoirs, respectively, besides ordinary siliceous sand (0-4 mm and fly ash from an anthracite-coal heat generator.

    Se presentan en este artículo hormigones autocompactables que, mediante la adición de pequeñas fracciones volumétricas de fibras cortas de polipropileno, consiguen incrementos importantes de tenacidad en su comportamiento mecánico a flexión. Estos aumentos de tenacidad son semejantes a los que presentan un grupo de hormigones reforzados con fibras, denominados ECC (Engineered Cementitious Composites, que muestran también alguna ductilidad y endurecimiento por deformación en ensayos de tracción directa y flexión. Los hormigones se dosificaron empleando cemento Pórtland con Puzolana natural, áridos volcánicos de machaqueo y arena fina procedente de dunas del desierto del Sáhara (0-1 mm, de canteras y depósitos de Las Palmas de Gran Canaria (Islas Canarias, respectivamente, además de arena silícea ordinaria (0-4 mm y cenizas volantes de una central térmica de combustible antracita.

  1. Composición lipídica de dos peces laxantes: Ruvettus pretiosus y Lepidocybium flavobrunneum

    Directory of Open Access Journals (Sweden)

    Bravo, L.

    1993-02-01

    Full Text Available A review is made on the literature conceming the lipid composition of two fish belonging to PERCIFORMES order, Gempylidae family, Ruvettus pretiosus and Lepidocybium flavobrunneum. The lipid fraction is principally composed of wax esters (esters of fatty acid with long chain fatty alcohols, as well as phospholipids, triglycerides, hydrocarbons and sterols. The lipid extracted from these fish is traditionally used in consideration of its purgative properties in fishing villages from islands like Canarias. In Japanese markets, this fish can be found as a fraudulent substitute of other edible fish. It seems that the toxic-laxative properties are due to the large amount of wax esters in its lipid fraction.Se realiza una revisión bibliográfica de la composición lipídica de dos peces pertenecientes al orden PERCIFORMES, familia Gempylidae, Ruvettus pretiosus y Lepidocybium flavobrunneum. La fracción lipídica está compuesta principalmente por esteres tipo ceras (formados por la unión de ácidos grasos y alcoholes grasos mediante enlace tipo éster, además de fosfolípidos, triglicéridos, hidrocarburos y esteroles. Las grasas extraídas de estos peces son utilizadas tradicionalmente por sus propiedades purgantes en pueblos pescadores de islas como Canarias. En los mercados japoneses, estos peces se pueden encontrar como sustituto fraudulento de otros peces comestibles. Parece ser que las propiedades tóxico-laxantes son debidas a la gran cantidad de ceras presentes en su fracción lipídica.

  2. Gran propiedad y productividad agrícola en el campo del sur de España

    Directory of Open Access Journals (Sweden)

    Martín Martín, Victor O.

    2008-06-01

    Full Text Available The agrarian sector continues being very important in the Spanish regions of Andalusia and Estremadura. The strategies of the great property have organized and organize the agrarian dominant systems in both regions. We try to relate the above mentioned strategies to the scanty productivity of the agriculture of the South of Spain. The hypothesis is to demonstrate that the productive capacities of Andalusia and Estremadura are underdeveloped and that the combination of the agriculture industrialized and the new sustainable agriculture are diminishing furthermore her productivity. The great owner, the laborer "tied" to the land and the stagnation of the work strengths are three ingredients that explain the lag of the South of Spain.

    El sector agrario sigue siendo muy importante en las regiones españolas de Andalucía y Extremadura. Las estrategias de la gran propiedad han organizado y organizan los sistemas agrarios dominantes en ambas regiones. Intentamos relacionar dichas estrategias con la escasa productividad de la agricultura del Sur de España. La hipótesis de partida es demostrar que las capacidades productivas de Andalucía y Extremadura están subdesarrolladas y, además, que la combinación de la agricultura industrializada con la que incorpora los nuevos planteamientos de la agricultura sostenible están disminuyendo aún más su productividad. El gran propietario como “señorito”, el jornalero “atado” a la tierra y el estancamiento de las fuerzas productivas son los tres ingredientes que explican el atraso del sur de España.

  3. El feminismo y el pacifismo en tiempos de la Gran Guerra europea (1914-19181

    Directory of Open Access Journals (Sweden)

    María Himelda Ramírez

    2016-01-01

    Full Text Available Este artículo propone una reinterpretación de los cambios en la vida de las mujeres durante las movilizaciones de la Gran Guerra europea (1914-1918, desde la perspectiva de las redefiniciones de las relaciones de género. Se realiza un recorrido por una selección de historiografía feminista, por fragmentos de la historia crítica de la familia y por datos biográficos y autobiográficos de activistas de los movimientos sufragistas y pacifistas. Se aprecian las reacciones de adhesión de las mujeres a la causa beligerante suscitadas por el patriotismo, su solidaridad con los combatientes sobrevivientes y con sus familias, así como sus críticas pacifistas al militarismo.

  4. La erupción y el tubo volcánico del Volcán Corona (Lanzarote, Islas Canarias

    Directory of Open Access Journals (Sweden)

    Láinez, A.

    2003-12-01

    Full Text Available The island of Lanzarote, located at the eastem, oldest edge of the Canarian hotspot island-chain, has very sparse Holocene rejuvenation volcanism, possibly restricted to the 1824 and 1730 eruptions, ir1 agreement with the mature post-erosional stage of the island. The dating of the Corona Volcano, possibly the most recent eruptive event in the island before the historic eruptions, gives a mean 40Ar/.i9Ar age of 21 f 6.5 ka. This age agrees with the geological observations and the study of the Corona Volcano, particularly the large lava tube (7.6 km long, up to 25 m in diameter formed in the initial stages of the eruption. The last 1.6 km of' this lava tube are at present submerged, ending at a depth of at least 80 m below the present sea level. Our interpretation is that the active lava tube could not have reached that depth and, therefore, the submerged part of the tube formed as the lava flowed on a coastal platform at least 1.6 km wider and at least 80 m below the present sea level, a circumstance that could only have been possible coinciding with a period of low sea-leve1 stand related to a maximum glacial, most probably the last one, at about 20 ka. The subsequent rise in sea level left the coastal platform and the end of the lava tube submerged. The age of the Corona Volcano eruption is constrained by the radioisotopic determinations in 21 + 6.5 ka and, concordantly, by the low sea-leve1 stand recorded between about 18 and 21 ka. The Corona Volcano eruption and lava tube therefore provide clear evidence of changes in sea level in the Canaries in relation to glaciations, and establish important constraints in the volcanic history of the island of Lanzarote.La isla de Lanzarote, situada en el extremo oriental de la alineación del punto caliente de las Canarias, ha tenido escasa actividad eruptiva de rejuvenecimiento en el Holoceno, posiblemente reducida a las erupciones de 1730 y 1824, hecho que concuerda con el avanzado estado post

  5. Vivienda unifamiliar - Londres - Gran Bretaña

    Directory of Open Access Journals (Sweden)

    Guest, John

    1978-10-01

    Full Text Available This home, designed by the architect himself as his place of residence with his wife and two children, is sited in a large garden belonging to the former home of the family, situated in an area relatively close to the center of London. The program of the dwelling, which includes: five bedrooms, bathrooms, playroom for children, living room, dining room, kitchen and music room, is resolved in two floors and a semibasement. The house is basically oriented towards the rear garden, in order to integrate the garden areas into the interior spaces, which is achieved by means of large terraces and Windows. Other characteristics of this construction are the luminosity —achieved by means of glass facades and an adequate selection of the covering materials—, the low maintenance costs and the abundance of space, which tend to counteract the negative effects of the large city ¡n which it is immersed.

    Esta vivienda, diseñada por el propio arquitecto para vivir en ella con su mujer y sus dos hijos, se encuentra emplazada en un amplio jardín perteneciente al antiguo hogar de la familia, situado en una zona relativamente próxima al centro de Londres. El programa de la vivienda, que comprende: cinco dormitorios, cuartos de baño, sala de juego para niños, salón, comedor, cocina y sala de música, está resuelto en dos plantas y un semisótano. La casa se ha orientado fundamentalmente hacia el jardín posterior, con el fin de integrar sus zonas verdes en los espacios interiores, lo que se consigue mediante amplias terrazas y ventanales. Otras características de esta construcción son la luminosidad —obtenida mediante el acristalamiento de las fachadas y una adecuada elección de los materiales de revestimiento—, los bajos costos de mantenimiento y la abundancia de espacio, que tienden a contrarrestar los efectos negativos de la gran ciudad en la que se halla inmersa.

  6. Participación ciudadana y territorio en el Gran Buenos Aires

    Directory of Open Access Journals (Sweden)

    Adriana Rofman

    2014-10-01

    Full Text Available Esta investigación se interesa por la cuestión de la relación entre la sociedad civil y el Estado en localidades periféricas de ciudades metropolitanas, desde un enfoque que articula dimensiones de análisis sociopolíticas y socioterritoriales. Para ello, se analizan los datos obtenidos en un estudio sobre experiencias de vinculación de organizaciones de la sociedad con el Estado en localidades del Gran Buenos Aires, aplicado a 60 asociaciones de la región. Los resultados ponen en evidencia que en estos espacios coexisten modalidades diversas de relación, que se distinguen por su contenido político y estructura territorial. A partir de la identificación de los rasgos principales de la matriz sociopolítica y territorial de interacción, esta investigación se ha propuesto poner en cuestión las aproximaciones normativas que sostienen las construcciones teóricas sobre la sociedad civil y la participación ciudadana, a la vez que poner en evidencia la importancia que asumen los factores territoriales en la configuración de los procesos sociopolíticos.

  7. Adubação nitrogenada de sorgo granífero consorciado com capim em sistema de plantio direto

    Directory of Open Access Journals (Sweden)

    Gustavo Pavan Mateus

    2011-10-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito do manejo da adubação nitrogenada sobre a cultura do sorgo granífero, cultivado solteiro e em consócio com capim-marandu e capim-mombaça, e determinar a produtividade de matéria seca das forrageiras, nos anos agrícolas 2003/2004 e 2004/2005, em plantio direto. Foi utilizado o delineamento experimental em blocos ao acaso, em arranjo fatorial 3x5, com quatro repetições. Os tratamentos consistiram de três sistemas de cultivo de sorgo granífero (solteiro e consorciado com capim-marandu ou capim-mombaça, na linha de semeadura e cinco manejos de adubação nitrogenada: 30-70; 70-30; 50-50; 100-0; e 0-100 kg ha-1 de N, quantidades aplicadas na semeadura e na cobertura, respectivamente. O cultivo consorciado não afetou a nutrição nem a produtividade de grãos de sorgo. Apenas no primeiro ano de cultivo, o parcelamento 50-50 kg ha-1 de N proporcionou maior produtividade de grãos. O manejo da palhada interferiu no estabelecimento do sorgo no segundo ano de cultivo, e diminuiu a produtividade de grãos. As maiores doses de N aplicadas em cobertura elevaram a produtividade de matéria seca do capim-marandu e, as aplicadas em semeadura, a elevaram no capim-mombaça.

  8. First 10 kg of naked germanium detectors installed in liquid nitrogen in GENIUS Test-Facility in GRAN-SASSO

    Energy Technology Data Exchange (ETDEWEB)

    Klapdor-Kleingrothaus, H.V. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)

    2004-07-01

    The GENIUS Test Facility has come into operation in Gran Sasso on May 5, 2003 with its first ten kg of naked Ge detectors in liquid nitrogen. This is the first time that this novel technique for extreme background reduction in search for rare decays is applied under the background conditions of an underground laboratory. GENIUS-TF has the potential to check the DAMA evidence for cold dark matter by modulation, and possibly, to improve the accuracy of the recently observed first signal for neutrinoless double beta decay. (orig.)

  9. First 10 kg of naked germanium detectors installed in liquid nitrogen in GENIUS Test-Facility in GRAN-SASSO

    International Nuclear Information System (INIS)

    Klapdor-Kleingrothaus, H.V.

    2004-01-01

    The GENIUS Test Facility has come into operation in Gran Sasso on May 5, 2003 with its first ten kg of naked Ge detectors in liquid nitrogen. This is the first time that this novel technique for extreme background reduction in search for rare decays is applied under the background conditions of an underground laboratory. GENIUS-TF has the potential to check the DAMA evidence for cold dark matter by modulation, and possibly, to improve the accuracy of the recently observed first signal for neutrinoless double beta decay. (orig.)

  10. Una gran novela de América: el estilo en "La Serpiente de oro" de Ciro Alegría

    Directory of Open Access Journals (Sweden)

    Liubov Lapshina

    1982-07-01

    Full Text Available "La Serpiente de Oro", que consta de XIX capítulos con carácter de novelas independientes pero unidas por un protagonista principal (el impetuoso Marañón deriva su titulo de este río, precisamente denominado "La Serpiente de Oro". El sujeto del libro está dedicado a los balseros, cuya vida, llena de riesgos, depende de la gran arteria fluvial. Los acontecimientos principales de la novela se desarrollan en el Calemar, uno de sus valles.

  11. Una nueva relación urbana para el Gran Concepción: Proyecto de Transporte Intermodal Biovías

    Directory of Open Access Journals (Sweden)

    Hugo Campos Miranda

    2004-11-01

    El presente artículo presenta dicho proceso aplicado al Gran Concepción y de sus resultados surgió el Sistema Integrado de Transportes, Biovías, cuya primera etapa se encontrará ejecutada y en operación a fines del 2005. Se trata de la intervención, en el ámbito del transporte urbano, más integral y ambiciosa en la historia de las regiones de nuestro país.

  12. Aspectos volcanológicos y estructurales. Evolución petrológica e implicaciones en riesgo volcánico de la erupción de 1730 en Lanzarote. Islas Canarias

    Directory of Open Access Journals (Sweden)

    Soler, V.

    1990-04-01

    longitud de la fisura eruptiva (al menos 14 km, muy diferente del resto de las erupciones históricas de Canarias (últimos 500 años, que presentan estos parámetros con valores muy inferiores. La evolución de los magmas (con claras tendencias toleíticas, es asimismo única en el volcanismo histórico del Archipiélago. No había sido objeto, sin embargo, hasta ahora de un estudio específico que intentara su reconstrucción. Para la elaboración de este trabajo se ha realizado la cartografía geológica y la estratigrafía de detalle (a escala 1:10.000 de la zona, un amplio estudio petrológico y la correlación con los datos aportados por relatos de testigos oculares, entre ellos un manuscrito inédito. Se han diferenciado las principales fases de actividad, en función de cambios importantes en la composición de los magmas y en la relación con la fractura general que controla la erupción. El estudio petrológico y geoquímico, realizado sobre 51 muestras bien localizadas estratigráfica y temporalmente, muestra importantes cambios en los procesos de generación de los magmas y en el sistema de alimentación interna de la erupción. Los magmas evolucionan desde basanitas nefelínicas a basaltos alcalinos en la fase inicial de la erupción (7 a 12,5 % de fusión, y a partir de la 2.º fase desde basaltos alcalinos hasta toleitas olivínicas (13 a 20 % de fusión, con niveles de generación más superficiales. El modelo resultante del análisis de los elementos traza indica un claro predominio de procesos de fusión parcial. El carácter «anómalo» de esta erupción en relación con el volcanismo histórico de Canarias podría explicarse por la continuación de la erupción una vez finalizada la 1.' fase (unos 3-5 meses, al producirse la elevación y emplazamiento del frente de generación de magma a una profundidad intermedia a favor de una gran fractura. La definición de una serie de posibles escenarios permite simular y evaluar el impacto que la repetici

  13. Proposal to the Gran Sasso Laboratory for a dark matter search using cryogenic detectors

    International Nuclear Information System (INIS)

    Cooper, S.; Colling, P.; Ferger, P.; Frank, M.; Gebauer, H.J.; Nagel, U.; Nucciotti, A.; Proebst, F.; Rulofs, A.; Seidel, W.; Stodolsky, L.; Feilitzsch, F. v.; Forster, G.; Hallatschek, K.; Kellner, E.

    1993-11-01

    We request space and support from the Gran Sasso Laboratory for an experiment searching for dark matter WIMPs using cryogenic detectors. Our experiment is complementary to other dark matter searches in that it extends the sensitivity for WIMPs to the mass range below 10 GeV and that different target materials can be used within the same setup. The proposed experiment uses in the first stage a detector consisting of 1 kg of sapphire with a threshold of 0.5 keV and a resolution of 0.2 keV at 1 keV. The detector would be run at a temperature of 15-30 mK within a low-background setup. The first stage could be installed in 1995. The proposed setup allows for future expansion of the detector to 10-100 kg without major changes. (orig.)

  14. Las configuraciones sociales de la crianza en barrios populares del Gran Buenos Aires

    Directory of Open Access Journals (Sweden)

    Laura Santillán

    2010-01-01

    Full Text Available En este artículo propongo una exploración antropológica sobre la crianza y la educación infantil en contextos de desigualdad social. El interés es discutir una serie de supuestos que suelen limitar las prácticas educativas de los sectores subalternos a "pautas tradicionales" y "privativas del mundo familiar". Sin embargo, en las iniciativas domésticas sobre la crianza y el cuidado infantil que analizo, intervienen actores esperables para ello y también un conjunto de sujetos e instituciones no formalizadas pero que se tornan relevantes en la cotidianeidad de los territorios de pertenencia de los niños y niñas. Para el análisis me basaré en las entrevistas y en los registros de tipo etnográfico que llevé a cabo en asentamientos ubicados en la zona norte del Gran Buenos Aires, Argentina.

  15. Anomia and Displacement of Responsibility as Determinants of Tourist Company Managers’ Non-Involvement in Alleviating Poverty

    Directory of Open Access Journals (Sweden)

    Agustín J. Sánchez-Medina

    2017-05-01

    Full Text Available The economic transformation produced by tourism sometimes has a positive influence on reducing poverty, but other times it does not. Discovering the reasons for this difference is highly relevant. In searching for these reasons, this study will focus on an important actor in tourism management, the manager. Specifically, the study will analyze how a certain negative mood state, anomia, influences the fact that managers do not consider it advisable for their companies to become involved in reducing poverty. The term future managers has been used as a proxy variable for managers. In addition, the study will also examine whether a moral disengagement mechanism, displacement of responsibility, is a mediator variable in this relationship. Covariance-based structural equation modeling was applied to a sample of 422 students in their last year of the Tourism degree at two universities, Las Palmas de Gran Canaria (Spain and Ibn-Zohr-Agadir (Morocco. The results show that all the proposed hypotheses are supported.

  16. The conception of Social Pedagogy in the training of Social Educators in Spain

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    Érico Ribas Machado

    2017-05-01

    Full Text Available This text presents research data developed in a doctoral study from the methodological perspective of Comparative Education (GARCIA GARRIDO, 1986. In order to achieve the thesis objective, we opted for the analysis of the Social Pedagogy disciplines syllabus that compose the curricular proposal of the Undergraduate Course in Social Education of ten Spanish universities, namely: 1. National University of Distance Education; 2. Autonomous University of Barcelona; 3. University of Castilla-La Mancha; 4. Santiago de Compostela University; 5. University of Salamanca; 6. University of Deusto; 7. University of León; 8. University of Valencia; 9. University of Las Palmas de Gran Canarias; 10. University of Málaga. We also opted to combine the content analysis with comparative methodology (PEREZ SERRANO, 2003. The analysis of the syllabuses permitted to verify a persistent attempt to characterize Social Pedagogy as a Science that should articulate theory and practice as essence for the formation of the Social Educator.

  17. Determination of steroid hormones in fish tissues by microwave-assisted extraction coupled to ultra-high performance liquid chromatography tandem mass spectrometry.

    Science.gov (United States)

    Guedes-Alonso, Rayco; Sosa-Ferrera, Zoraida; Santana-Rodríguez, José Juan

    2017-12-15

    Steroid hormones produce adverse effects on biota as well as bioaccumulation in fish and seafood, making it necessary to develop methodologies to evaluate these compounds in samples related to the food chain. This work presents an analytical method for evaluating 15 steroid hormones in fish tissue. It is based on microwave-assisted extraction and solid-phase extraction coupled to ultra-high-performance liquid chromatography tandem mass spectrometry (MAE-SPE-UHPLC-MS/MS). The proposed method shows appropriate detection limits (0.14-49.0ngg -1 ), recoveries in the range of 50% and good repeatability. After optimization, the method was applied to different tissues from two small fishes of the Canary Islands that constitute an important level of the food web (Boops boops and Sphoeroides marmoratus) and were exposed to the outfall of the Las Palmas de Gran Canaria wastewater treatment plant. The concentrations of eight detected compounds ranged from below the quantification limits to 3.95μgg -1 . Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. A Methodology to Detect and Update Active Deformation Areas Based on Sentinel-1 SAR Images

    Directory of Open Access Journals (Sweden)

    Anna Barra

    2017-09-01

    Full Text Available This work is focused on deformation activity mapping and monitoring using Sentinel-1 (S-1 data and the DInSAR (Differential Interferometric Synthetic Aperture Radar technique. The main goal is to present a procedure to periodically update and assess the geohazard activity (volcanic activity, landslides and ground-subsidence of a given area by exploiting the wide area coverage and the high coherence and temporal sampling (revisit time up to six days provided by the S-1 satellites. The main products of the procedure are two updatable maps: the deformation activity map and the active deformation areas map. These maps present two different levels of information aimed at different levels of geohazard risk management, from a very simplified level of information to the classical deformation map based on SAR interferometry. The methodology has been successfully applied to La Gomera, Tenerife and Gran Canaria Islands (Canary Island archipelago. The main obtained results are discussed.

  19. Dry Deposition from Sahara Sources Regions of Western Africa

    Directory of Open Access Journals (Sweden)

    B. Douaiba

    2014-01-01

    Full Text Available Sahara dust storms during March 2004 have attracted much attention from the dust-research community due to their intensity, wide coverage, and endurance. In the present work, the dry deposition mechanisms of mineral dust are analysed during an event on the 3 March 2004 over the Northwest African coast. This particular case was chosen based on the strong dry removal that occurred, rendering it ideal for examining the deposition processes. The simulation of synoptic conditions and dry deposition of four dust particles including clay, small silt, large silt, and sand was performed with Eta model, coupled with a desert dust cycle module. The results have been compared with surface data from weather stations in North Africa, data of dry metals from stations located in Gran Canaria, and various satellite images such as European Organization for the Exploitation of Meteorological Satellites and Moderate Resolution Imaging Spectroradiometer for the period in question.

  20. VizieR Online Data Catalog: Sulamitis and Clarissa asteroids spectra (Morate+, 2018)

    Science.gov (United States)

    Morate, D.; de, Leon J.; de Pra, M.; Licandro, J.; Cabrera-Lavers, A.; Campins, H.; Pinilla-Alonso, N.

    2017-11-01

    A total of 97 low-resolution visible spectra were obtained for the asteroids in the Sulamitis and Clarissa families (64 and 33 objects, respectively), using the Optical System for Imaging and Low Resolution Integrated Spectroscopy (OSIRIS) camera spectrograph at the 10.4m Gran Telescopio Canarias (GTC), located at the El Roque de los Muchachos Observatory (ORM) in La Palma, Canary Islands, Spain. In addition, we obtained three spectra of (752) Sulamitis using the Intermediate Dispersion Spectrograph (IDS) at the 2.5m Isaac Newton Telescope, also located at the ORM in La Palma, as part of program C97 (2015), on July 22, 2015. All the spectra files included here are named ast_ASTEROIDNUMBER.txt, except for the spectra of (752) taken with the INT (named ast752INT.txt). The first column is the wavelength, expressed in microns, and the second column is the reflectance value (which is normalized at 1 at 0.55 microns). (3 data files).

  1. Circum-Galactic Medium in the Halo of Quasars

    Directory of Open Access Journals (Sweden)

    Riccardo Ottolina

    2017-12-01

    Full Text Available The properties of circum-galactic gas in the halo of quasar host galaxies are investigated analyzing Mg II 2800 and C IV 1540 absorption-line systems along the line of sight close to quasars. We used optical spectroscopy of closely aligned pairs of quasars (projected distance ≤ 200 kpc, but at very different redshift obtained at the VLT and Gran Telescopio Canarias to investigate the distribution of the absorbing gas for a sample of quasars at z ~1. Absorption systems of EW ≥0.3 associated with the foreground quasars are revealed up to 200 kpc from the centre of the host galaxy, showing that the structure of the absorbing gas is patchy with a covering fraction quickly decreasing beyond 100 kpc. In this contribution we use optical and near-IR images obtained at VLT to investigate the relations between the properties of the circum-galactic medium of the host galaxies and of the large scale galaxy environments of the foreground quasars.

  2. Exposure of Arabidopsis thaliana to hypobaric environments: implications for low-pressure bioregenerative life support systems for human exploration missions and terraforming on Mars.

    Science.gov (United States)

    Richards, Jeffrey T; Corey, Kenneth A; Paul, Anna-Lisa; Ferl, Robert J; Wheeler, Raymond M; Schuerger, Andrew C

    2006-12-01

    Understanding how hypobaria can affect net photosynthetic (P (net)) and net evapotranspiration rates of plants is important for the Mars Exploration Program because low-pressured environments may be used to reduce the equivalent system mass of near-term plant biology experiments on landers or future bioregenerative advanced life support systems. Furthermore, introductions of plants to the surface of a partially terraformed Mars will be constrained by the limits of sustainable growth and reproduction of plants to hypobaric conditions. To explore the effects of hypobaria on plant physiology, a low-pressure growth chamber (LPGC) was constructed that maintained hypobaric environments capable of supporting short-term plant physiological studies. Experiments were conducted on Arabidopsis thaliana maintained in the LPGC with total atmospheric pressures set at 101 (Earth sea-level control), 75, 50, 25 or 10 kPa. Plants were grown in a separate incubator at 101 kPa for 6 weeks, transferred to the LPGC, and acclimated to low-pressure atmospheres for either 1 or 16 h. After 1 or 16 h of acclimation, CO(2) levels were allowed to drawdown from 0.1 kPa to CO(2) compensation points to assess P (net) rates under different hypobaric conditions. Results showed that P (net) increased as the pressures decreased from 101 to 10 kPa when CO(2) partial pressure (pp) values were below 0.04 kPa (i.e., when ppCO2 was considered limiting). In contrast, when ppCO(2) was in the nonlimiting range from 0.10 to 0.07 kPa, the P (net) rates were insensitive to decreasing pressures. Thus, if CO(2 )concentrations can be kept elevated in hypobaric plant growth modules or on the surface of a partially terraformed Mars, P (net) rates may be relatively unaffected by hypobaria. Results support the conclusions that (i) hypobaric plant growth modules might be operated around 10 kPa without undue inhibition of photosynthesis and (ii) terraforming efforts on Mars might require a surface pressure of at least 10

  3. Exposure of Arabidopsis thaliana to Hypobaric Environments: Implications for Low-Pressure Bioregenerative Life Support Systems for Human Exploration Missions and Terraforming on Mars

    Science.gov (United States)

    Richards, Jeffrey T.; Corey, Kenneth A.; Paul, Anna-Lisa; Ferl, Robert J.; Wheeler, Raymond M.; Schuerger, Andrew C.

    2006-12-01

    Understanding how hypobaria can affect net photosynthetic (P net) and net evapotranspiration rates of plants is important for the Mars Exploration Program because low-pressured environments may be used to reduce the equivalent system mass of near-term plant biology experiments on landers or future bioregenerative advanced life support systems. Furthermore, introductions of plants to the surface of a partially terraformed Mars will be constrained by the limits of sustainable growth and reproduction of plants to hypobaric conditions. To explore the effects of hypobaria on plant physiology, a low-pressure growth chamber (LPGC) was constructed that maintained hypobaric environments capable of supporting short-term plant physiological studies. Experiments were conducted on Arabidopsis thaliana maintained in the LPGC with total atmospheric pressures set at 101 (Earth sea-level control), 75, 50, 25 or 10 kPa. Plants were grown in a separate incubator at 101 kPa for 6 weeks, transferred to the LPGC, and acclimated to low-pressure atmospheres for either 1 or 16 h. After 1 or 16 h of acclimation, CO2 levels were allowed to drawdown from 0.1 kPa to CO2 compensation points to assess P net rates under different hypobaric conditions. Results showed that P net increased as the pressures decreased from 101 to 10 kPa when CO2 partial pressure (pp) values were below 0.04 kPa (i.e., when ppCO2 was considered limiting). In contrast, when ppCO2 was in the nonlimiting range from 0.10 to 0.07 kPa, the P net rates were insensitive to decreasing pressures. Thus, if CO2 concentrations can be kept elevated in hypobaric plant growth modules or on the surface of a partially terraformed Mars, P net rates may be relatively unaffected by hypobaria. Results support the conclusions that (i) hypobaric plant growth modules might be operated around 10 kPa without undue inhibition of photosynthesis and (ii) terraforming efforts on Mars might require a surface pressure of at least 10 kPa (100 mb) for

  4. Susceptibility to deltamethrin of wild and domestic populations of Triatoma infestans of the Gran Chaco and the Inter-Andean Valleys of Bolivia.

    Science.gov (United States)

    Gomez, Marinely Bustamante; D'Avila, Grasielle Caldas Pessoa; Orellana, Ana Lineth Garcia; Cortez, Mirko Rojas; Rosa, Aline Cristine Luiz; Noireau, François; Diotaiuti, Liléia Gonçalves

    2014-11-14

    The persistence of Triatoma infestans and the continuous transmission of Trypanosoma cruzi in the Inter-Andean Valleys and in the Gran Chaco of Bolivia are of great significance. Coincidentally, it is in these regions the reach of the vector control strategies is limited, and reports of T. infestans resistance to insecticides, including in wild populations, have been issued. This study aims to characterize the susceptibility to deltamethrin of wild and domestic populations of T. infestans from Bolivia, in order to better understand the extent of this relevant problem. Susceptibility to deltamethrin was assessed in nine, wild and domestic, populations of T. infestans from the Gran Chaco and the Inter-Andean Valleys of Bolivia. Serial dilutions of deltamethrin in acetone (0.2 μL) were topically applied in first instar nymphs (F1, five days old, fasting, weight 1.2 ± 0.2 mg). Dose response results were analyzed with PROBIT version 2, determining the lethal doses, slope and resistance ratios (RR). Qualitative tests were also performed. Three wild T. infestans dark morph samples of Chaco from the Santa Cruz Department were susceptible to deltamethrin with RR50 of Bolivia are less susceptible.

  5. La Gran Guerra y sus impactos locales. Rosario, Argentina 1914-1920

    Directory of Open Access Journals (Sweden)

    Cecilia M. Pascual

    2015-07-01

    Full Text Available Este artículo aborda el impacto de la Gran Guerra en la ciudad de Rosario, Argentina. Releva sus impactos económicos y los significados que se les asignaron. Analiza las formas en que los actores sociales intentaron hacer frente a los efectos críticos del conflicto mundial: encarecimiento de los productos primarios, desabastecimiento y desocupación. En este campo resultan importantes la producción de ferias francas, la construcción de mercados municipales y el abasto directo de productos primarios por parte del municipio. Ante la dimensión y duración del paro, las autoridades comenzaron a tejer nuevas estrategias para intervenir sobre este fenómeno. Se observa una transición de unas estrategias gubernamentales basadas en la represión y la segregación a otras emparentadas con la asistencia y la ayuda social. Si bien estas nuevas herramientas de intervención no tendieron a perdurar y manifestaron su carácter coyuntural y paliativo, una vez superada la crisis, hacia mediados de los años 1920, organizaron el debate sobre la producción de nuevas políticas municipales y del reformismo local.

  6. ¿Estás nervioso? Las elecciones desde una villa del Gran Buenos Aires

    Directory of Open Access Journals (Sweden)

    María Cecilia Ferraudi Curto

    2011-11-01

    Full Text Available En este artículo pretendo explorar la política en el Gran Buenos Aires a partir de un análisis de las elecciones legislativas de 2009 desde mi etnografía en una villa de La Matanza en proceso de urbanización. A partir de allí, intentaré dar cuenta de una serie de perspectivas que quedan opacadas en los análisis centrados en procesos electorales. Mientras éstos enfocan hacia las estrategias de campaña de los candidatos y los entramados políticos desde los cuales construyen apoyos para explicar los resultados electorales (o intentar predecirlos, el punto central de este artículo consiste en mostrar cómo las elecciones se imponen y son apropiadas localmente a partir de una perspectiva centrada en la urbanización de la villa.

  7. Incidència i consequències de les caigudes en les persones grans que viuen a la comunitat

    OpenAIRE

    Salvà, Antoni

    2016-01-01

    ANTECEDENTS I OBJECTIUS: Avaluar la incidència de les caigudes en funció dels factors sociodemogràfics i de salut, i determinar llurs conseqüències físiques, psicològiques i socials. Desenvolupar una nova eina d'avaluació del factor de risc amb l'objectiu d'assolir una intervenció preventiva multifactorial. METODOLOGIA: Estudi poblacional prospectiu, que inclou una cohort representativa de 448 persones grans, de 65 anys o més, que viuen a la ciutat de Mataró (Espanya). Hem fet una avaluació b...

  8. My American Uncle, America Cries Uncle, and Other Fantastic Tales from France: Iegor Gran's Jeanne d'Arc fait tic-tac

    OpenAIRE

    Carolyn A. Durham

    2008-01-01

    Ella Shohat and Robert Stam's proposal that beliefs about nations often crystallize in the form of stories could serve as both summary and generative matrix for Jeanne d'Arc fait tic-tac . In keeping with a number of recent fictional works united by the attempt to understand French and American cultures in a comparative context, the first part of Iegor Gran's clever 2005 novel consists of eleven stories whose common focus on the danger represented by American culture for French national iden...

  9. The underground seismic array of Gran Sasso (UNDERSEIS), central Italy

    Science.gov (United States)

    Scarpa, R.; Muscente, R.; Tronca, F.; Fischione, C.; Rotella, P.; Abril, M.; Alguacil, G.; Martini, M.; de Cesare, W.

    2003-04-01

    Since early May, 2002, a small aperture seismic array has been installed in the underground Physics Laboratories of Gran Sasso, located near seismic active faults of central Apennines, Italy. This array is presently composed by 21 three-component short period seismic stations (Mark L4C-3D), with average distance 90 m and semi-circular aperture of 400 m x 600 m. It is intersecting a main seismogenic fault where the presence of slow earthquakes has been recently detected through two wide band geodetic laser interferometers. The underground Laboratories are shielded by a limestone rock layer having 1400 m thickness. Each seismometer is linked, through a 24 bits A/D board, to a set of 6 industrial PC via a serial RS-485 standard. The six PC transmit data to a server through an ethernet network. Time syncronization is provided by a Master Oscillator controlled by an atomic clock. Earthworm package is used for data selection and transmission. High quality data have been recorded since May 2002, including local and regional earthquakes. In particular the 31 October, 2002, Molise (Mw=5.8 earthquake) and its aftershocks have been recorded at this array. Array techniques such as polarisation and frequency-slowness analyses with the MUSIC noise algorithm indicate the high performance of this array, as compared to the national seismic network, for identifying the basic source parameters for earthquakes located at distance of few hundreds of km.

  10. Integración de microorganismos benéficos (Hongos micorrícicos y bactérias izosféricas) en agrosistemas de las Islas Canarias

    OpenAIRE

    Jaizme-Vega, María del Carmen; Rodríguez-Romero, Ana Sue

    2008-01-01

    La actividad microbiana de la rizosfera es, en gran medida, responsable del funcionamiento del ecosistema y de la fertilidad de los suelos agrícolas. Entre los microorganismos benéficos del suelo, tanto los hongos formadores de micorrizas arbusculares (MA) como las bacterias rizosféricas promotoras del crecimiento (BRPC), constituyentes claves de la zona rizosférica, contribuyen a mejorar el desarrollo y la nutrición de la planta, así como a incrementar la tolerancia de los ...

  11. Pensamiento del profesorado y alumnado sobre la integración de las TIC y su uso en los centros de adultos de Canarias

    OpenAIRE

    Morales Almeida, Paula

    2014-01-01

    Programa de doctorado: Formación del profesorado [ES] La educación de adultos ha ido adquiriendo una gran importancia en los últimos años como resultado de la educación permanente desarrollada por la sociedad de la información y la comunicación pero para que la educación de adultos tenga éxito debe contar con profesores formados en diversas áreas y que conozcan sus características de aprendizaje. Además, en esta nueva sociedad, las TIC han adquirido una vital importancia, ya que se encuent...

  12. The ICARUS T600 Liquid Argon Detector Operation in the Underground Gran Sasso Laboratory

    CERN Document Server

    Vignoli, C

    2014-01-01

    The ICARUS T600 Module is the largest liquid argon detector (760 t LAr mass) ever realized to study neutrino oscill ations and matter stability in the deep underground Gran Sasso Laboratory. One of t he key elements for the detector performance is the liquid argon purity: residual electronegative compounds in argon have to be kept as low as 0.1 part s per billion all over the detector run. The T600 Module design was finalized by the ICARUS Collaboration after years of R&D studies that brought to the viable and scalable industrial solutions necessary for sized experiments with severe safety prescriptions for the underground operation . We present the T600 Module successful commissioning and the 3-years efficient, stable and continuous operation with extraordinary LAr purity, high performance and zero dead time data taking . This result demonstrates for the first time the feasibility of activation and long-term run in safe conditions of sized cryogenic detectors even in a confined underground location and r...

  13. Precios inflexibles y la gran depresión Inflexible prices and the great depression

    Directory of Open Access Journals (Sweden)

    Lee Frederick S.

    2000-06-01

    Full Text Available Este articulo expone la teoria y la tesis de precios administrados de Gardiner Means, analiza sus efectos sobre la gran depresion y presenta las criticas y propuestas de los defensores de la teoria neoclasica. Revisa empiricamente la propuesta de Means y señala sus limitaciones y verdaderos alcances. Por ultimo, muestra que si la tesis Means y las propuestas Keynesianas se hubiesen unido en 1940, la sintesis resultante habria dado lugar a una teoria coherente, con solidos funadamentos empiricos, alternativa a la teoria neoclasica tradicional.This article presents Gardiner Means' theory and thesis of administeredprices, analyzes their effects on the Great Depression, andpresents the critiques and proposals of the defenders of Neoclassical Theory. It reviews Means' proposal empirically, and indicates its limitations as well as its real significance. Finally, it shows thatif the Means thesis and Keynesian proposals had been joined togetherin 1940, the resulting synthesis would have provided a coherent alternative to traditional Neoclassical Theory with solid empirical foundations.

  14. DIMENSIÓN ESPACIAL DE LA MOVILIDAD COTIDIANA UNIVERSITARIA: EL CASO DEL GRAN VALPARAÍSO

    Directory of Open Access Journals (Sweden)

    Marcela Soto C.

    2009-01-01

    Full Text Available Este trabajo obedece a la necesidad de conocer los patrones de movilidad cotidiana universitaria desde los lugares de residencia hacia el campus universitario y como estos han ido cambiando debido a la creciente infl uencia en las dinámicas de cambio del contexto urbano metropolitano del Gran Valparaíso. Estas dinámicas de cambios se caracterizan por desequilibrios funcionales al interior de la estructura metropolitana, y a un incremento sustantivo en la accesibilidad global producto de programas de inversión en infraestructura vial en sus principales corredores de transporte, llevando a desarrollos urbanos desiguales y crecientes. Estos cambios vistos desde una comunidad móvil específica como es el habitante universitario, nos permite visualizar nuevas tendencias de movilidad, asociadas a un modelo más centrífugo que "externaliza" crecientemente la residencia de los alumnos hacia el contexto urbano metropolitano, cuyas consecuencias sociales y urbano-ambientales pretende develar la investigación.

  15. El suelo urbano y los asentamientos informales en el gran resistencia. 1. Chaco, Argentina

    Directory of Open Access Journals (Sweden)

    María Cristina Magnano

    2005-01-01

    Full Text Available En el artículo se describe un creciente proceso de ocupaciones ilegales de terrenos por parte de familias sin hogar en Gran Resistencia del Chaco, Argentina. Luego la ocupación es seguida por gestiones legislativas que traspasan al Estado la responsabilidad de expropiar en beneficio de las familias ocupantes. La realidad demuestra que este último no ejecuta sus compromisos legales por carencia de recursos, con el agravante que los precarios presupuestos habitacionales locales no sólo son disminuidos, sino que en los últimos años se han suprimido varios, dejando sin atención necesidades urgentes de las familias sin casa. Los autores concluyen el artículo proponiendo un temario a debatir públicamente en torno las situaciones más críticas, urgentes y de interés local con la participación de todos los sectores vigentes de la institucionalidad.

  16. El poder de la Gran Distribución en el sistema agroalimentario actual. El caso de los lácteos en chile

    Directory of Open Access Journals (Sweden)

    Sandra Ríos Núnez

    2010-01-01

    Full Text Available La Gran Distribución (GD es un agente central de los modernos sistemas agroalimentarios. Esta importancia creciente se observa claramente en América Latina y, particularmente, en Chile, donde la GD concentra más de 60% de las ventas de alimentos y productos del hogar. Se trata, además, de un sector oligopolizado. En Chile, dos grupos distribuidores concentran cerca de 65% de las ventas de esos establecimientos. Así, la concentración da a los grupos distribuidores un poder de mercado que cada día choca más con el de las grandes industrias agroalimentarias. En el caso de los lácteos en Chile la pugna puede verse claramente. Su presencia ha sido esencial para explicar muchos de los cambios productivos y logísticos que se dieron en la producción de leche en los últimos años. El artículo analiza el rol de la Gran Distribución dentro del sector lácteo en Chile; se expone, por medio de una investigación empírica, la posición de poder que el sector tiene sobre los otros componentes del sistema agroalimentario.

  17. De la modernización a la "Gran Sociedad": continuidades y cambios en el Trabajo Social en el Reino Unido

    Directory of Open Access Journals (Sweden)

    Iain Ferguson

    2012-02-01

    trabajadores sociales fueron excluidos de gran parte de las iniciativas del Nuevo Laborismo para combatir la pobreza, tales como: el programa Sure Start para los niños y las familias y las diversas iniciativas del New Deal (Jordan y Jordan, 2001. En este contexto el actual partido conservador, con Cameron como primer ministro, ha insistido, en que la existencia en el Reino Unido de un egoísmo creciente, el individualismo y el aumento de los niveles de desigualdad no se deben —apunta— a las políticas neoliberales aplicadas por los gobiernos conservadores y por el Nuevo Laborismo en los últimos treinta años, sino a la existencia de un «Gran Estado», sobre todo entre 1997 y 2010. En el nuevo laborismo: «se da una preocupante paradoja y es que con el crecimiento reciente del Estado con su efecto en la responsabilidad personal y social, ha promovido en lugar de solidaridad social, egoísmo e individualismo» (Cameron, 2009. Frente al «Gran Estado», al Big State, Cameron ha contrapuesto la idea de la «Gran Sociedad», la Big Society, cuyo objetivo es «quitarle el poder a los políticos y dárselo a la gente». En esta perspectiva se alinean algunos destacados académicos de Trabajo Social que normalmente no simpatizan con las políticas conservadoras, en particular, Bill Jordan (Jordan, 2011. En un artículo reciente, Jordan ha interpretado la idea de Gran Sociedad sobre todo como una respuesta al enfoque gestor que el Nuevo Laborismo había atribuido al Trabajo Social y considera que ofrece a la profesión una oportunidad para volver a conectar con la perspectiva moral (en lugar de la tecnocrática. Aunque la crítica a la filosofía tecnocrática del Nuevo Laborismo es un elemento del discurso de la Gran Sociedad, sin embargo es un error, verlo como el principal elemento. Lo que le preocupa más bien a Cameron son aquellos que se encuentran en el extremo opuesto de la sociedad que, ya sea por la edad, discapacidad o desempleo, dependen en mayor o menor grado del

  18. Esas empeñadas luchas a que son muy aficionados los naturales de este país: un acercamiento a la etnicidad a través de la lucha canaria (1840-1943

    Directory of Open Access Journals (Sweden)

    Alonso, Víctor

    2016-06-01

    Full Text Available Sports in general, and traditional sports in particular, make a key contribution to the processes linked to the configuration of any identity. These activities can be studied as a reality «in its own right» (with a certain relative autonomy, as a part of a specific social subject, or as a diacritical social matter that enables us to characterize structures and social processes which, over time, could favour the changes, meanings and visions, whether considered legitimate or maligned, that are contained in these practices. This article deals with the traditional sport of lucha canaria [Canary-island wrestling], which has proved a revealing historical construct, to the extent that this popular game turned sports discipline underwent intense transformation during the 19th and early- 20th centuries. Its analysis provides an insight into the different social meanings, supports and principles associated with this activity, revealing a complex space of relations where the indigenous Guanche, historical tradition and an ongoing link with modernity are particularly relevant. All of this endorses the debate in recent decades in social anthropology and the social sciences regarding ethnicity, identity and sports.El deporte, y especialmente los deportes tradicionales, son una contribución de primer orden a los procesos de construcción identitaria. Puede ser estudiado como realidad «en sí» (dotada de relativa autonomía, al modo de un campo social específico, o bien en modo de diacrítico social que permite caracterizar unas estructuras y procesos sociales que, a lo largo del tiempo, favorecen las transformaciones, sentidos y visiones legitimadas o denostadas contenidas en las prácticas. Este artículo trata la lucha canaria, un deporte tradicional que se manifiesta como constructo histórico revelador, al tratarse de un juego popular deportivizado que vive una intensa transformación a lo largo del siglo XIX y las primeras décadas del XX. Su

  19. Evaluación de minerales alumino silicatos de Norte de Santander para fabricar piezas cerámicas de gran formato

    OpenAIRE

    Sandra Milena Rozo-Rincón; Jorge Sánchez-Molina; John Freddy Gelves-Díaz

    2014-01-01

    Se dan a conocer los resultados de la influencia del feldespato al ser mezclado con arcilla del área metropolitana de Cúcuta (Norte de Santander, Colombia), en relación con las principales variables que son tenidas en cuenta a la hora de fabricar un producto cerámico tradicional de gran formato mediante técnica de conformado por extrusión. Los materiales empleados fueron arcillas provenientes de las formaciones León y Guayabo, y el feldespato del municipio de Sardinata, los cuales fueron estu...

  20. Migración y selectividad : estudio comparativo de zonas metropolitanas de gran atracción migratoria : Puerto Vallarta y Tijuana

    OpenAIRE

    Serna Enciso, Teresita de Jesús

    2008-01-01

    La localización de ciertos asentamientos humanos en lugares geográficos especiales como las fronteras territoriales y las costas marítimas, ha convertido a diversos poblados en grandes polos de atracción económica y migratoria. En este trabajo de investigación se muestra un estudio descriptivo y comparativo de la migración reciente hacia dos polos de gran atracción: la zona metropolitana de Puerto Vallarta y la zona metropolitana de Tijuana. De manera muy particular, se presenta el análisis d...

  1. El Chicamocha: Río del Vino de Gran Altura

    Directory of Open Access Journals (Sweden)

    Marco Quijano Rico

    2007-10-01

    Full Text Available Nuestro proyecto de viticultura tropical de calidad se inició en la Loma de Puntalarga, en el Valle del Sol en 1982. Los viñedos están situados a gran altura entre los 2400 y los 2600 metros, en terrenos inclinados, consuelos de buena vocación vitícola, bastante brillo solar, calor diurno, frío nocturno y déficit hídrico; condiciones necesarias para producir uvas de alta calidad para vinificación. El cultivo se viene extendiendo desde los años noventa por diversos lugares. En este proceso el río Chicamocha parece ejercer un efecto similar al de otros ríos del vino. Entre los ríos más representativos del hábitat tradicional de las variedades cultivadas en la región, Riesling blanca y Pinot noir, están respectivamente el Rin en Alemania y el Saona en Francia. La distribución geográfica del desarrollo vitícola sigue la dirección del curso del río Chicamocha y prácticamente recubre a la de en claves poblacionales que influenciaba el centro religioso de Sogamoso, antes de la llegada de los españoles en 1537. Algo similar sucede con la distribución de cepas descendientes de la variedad Mission, probablemente introducida por jesuitas a Firavitoba en el siglo XVII. Parece que estos fenómenos podrían relacionarse en menor o mayor grado con la historia geológica regional, en particular la del río Chicamocha. Su conocimiento puede proporcionar valiosas claves sobre los fundamentos del “terroir” y contribuir a acrecentar el carisma, asentado en la calidad, que ya revela el vino regional.

  2. Muusikamaailm : Gran Teatre del Liceu taassünd. Orkestrikonverents Tokyos ja vietnami helilooja Phan. Konkursid Kölnis ja Düsseldorfis. Suri fado-lauljatar Amalia Rodrigues / Priit Kuusk

    Index Scriptorium Estoniae

    Kuusk, Priit, 1938-

    1999-01-01

    Barcelonas avas 7. okt. taas uksed Gran Teatre del Liceu, mis hävis tulekahjus 1994.a., teatri hooaja kavast, esinejatest. Jaapanis Tokyos toimunud Aasia maade orkestrikonverentsist. Kölni rahvusvahelise viiuldajate konkursi võitjatest, noorte muusikute nüüdismuusikaansamblite võistlusest Düsseldorfis. A.Rodrigues" lauljategevusest

  3. Ácaros Mesostigmata (Acari, Mesostigmata de hábitats seleccionados de La Gomera (islas Canarias, España

    Directory of Open Access Journals (Sweden)

    Moraza, M. L.

    2005-06-01

    Full Text Available The study of 47 samples from different habitats on La Gomera (Canary Islands, reveals 43 species representing 13 families from the order Mesostigmata. Most species were members of the families Ascidae (11 species and Laelapidae (9, followed by Macrochelidae and Pachylaelapidae (7 species. The most abundant species (abundance of 9% or greater found in the collected material are: Gamasiphis pulchellus (Berlese, 1887, Gamasellodes bicolour (Berlese, 1918, Veigaia planicola Berlese, 1892 and Pseudoparasitus dentatus (Halbert, 1920. The species found in the largest number of samples were Uropoda misella (Berlese, 1916 and G. bicolour (21%, V. planicola (19% and Holoparasitus Oudemans sp. (17%. Fayal-heather and laurisilva, with 36 species, provided the most diverse habitat; 9 species are associated with Erica arborea L., 9 species with Geranium canariensis Reut. and 9 with Sideritis lotsyi (Pitard.

    Como resultado del estudio de 47 muestras recogidas en diferentes hábitats de la isla de La Gomera (Islas Canarias, se obtuvieron 43 especies pertenecientes a 13 familias del orden Mesostigmata. Las familias Ascidae y Laelapidae son las mejor representadas, con 11 y 9 especies respectivamente, seguidas de Macrochelidae y Pachylaelapidae con 7. Las especies más abundantes (abundancia mayor o igual al 9% en el material recolectado son: Gamasiphis pulchellus (Berlese, 1887, Gamasellodes bicolor (Berlese, 1918, Veigaia planicola Berlese, 1892 y Pseudoparasitus dentatus (Halbert, 1920. Las especies más frecuentes (por aparecer en el mayor número de muestras son Uropoda misella (Berlese, 1916 y G. bicolor (21%, V. planicola (19% y Holoparasitus Oudemans sp. (17%. El fayal-brezal y laurisilva (monteverde, con 36 especies, es el hábitat más diverso; 9 especies se asocian a Erica arborea L., 9 a

  4. Los bienes de interés cultural de Gáldar (Canarias y el conjunto histórico “Plaza de Santiago” (1981-2006

    Directory of Open Access Journals (Sweden)

    Juan Sebastián López García

    2013-10-01

    Full Text Available En 1981, hace veinticinco años, la zona central de Gáldar fue declarada “Conjunto Histórico Artístico” con la denominación de Plaza de Santiago. Sin embargo no era el primer bien cultural que obtenía una distinción de este tipo, ya que Gáldar había sido pionera en 1949 con el yacimiento de El Agujero y La Guancha, primero de los de carácter arqueológico declarado en Canarias, al que seguiría en 1972 la Cueva Pintada. Hasta la década de los setenta prevalecieron los bienes arqueológicos, situación que se modificó en las dos últimas décadas del siglo XX después del reconocimiento de la Plaza de Santiago y su entorno. Junto con edificaciones religiosas también se incluyeron ejemplos de arquitectura doméstica, completándose con algunos yacimientos prehispánicos. Una particular circunstancia fue la declaración en 1993 del pago de Barranco Hondo de Abajo, lo que convertía a Gáldar en el primer municipio de Canarias que contaba con dos conjuntos históricos, siendo éste a la vez el primero de la comunidad autonóma con características rurales. De la relación de los declarados, si exceptuamos la mayoría de los de carácter arqueológico, buena parte son urbanos. Una característica es que se incluyen categorías variadas, incluyendo la existencia de una zona arqueológica junto a un conjunto histórico y varios monumentos (de arquitectura religiosa y doméstica. Este hecho es lógico si se tiene en cuenta la particularidad de Gáldar y su condición de núcleo histórico de superposición.Twenty five years ago, in 1981, the central zone of Galdar was declared an "Historic Artistic Site" with the name of Plaza de Santiago. But this was not the first cultural asset to obtain a distinction of this kind, as Galdar pioneered protection of this kind with the El Agujero and La Guancha site, the first archaeological site declared in the Canary Islands, followed by La Cueva Pintada, in 1972. Archaeological assets prevailed up

  5. Consideraciones sociojurídicas sobre participación ciudadana y 'democracia abierta': especial referencia a las nuevas perspectivas de profundización democrática en Canarias (Socio-Legal Considerations on Citizen Participation and 'Open Democracy'...

    Directory of Open Access Journals (Sweden)

    Juan Ramón Rodríguez-Drincourt

    2017-12-01

    Full Text Available En los últimos años se ha intensificado en España el desarrollo legislativo y las experiencias reales que pretenden promover la participación de los ciudadanos en la cosa pública. Se trata de propuestas que parten, según los casos, de teóricos, de organizaciones no gubernamentales, foros ciudadanos, asociaciones y evidentemente de los gobiernos, parlamentos y administraciones públicas. Muchas de estas propuestas impulsan una “democracia abierta” como concepto amplio que liga la profundización democrática a nuevas vías de participación ciudadana, transparencia y acceso a la información. Se hace una especial referencia a la Comunidad Autónoma de Canarias que constituye, en lo que toca a su calidad democrática, un caso singular en el universo autonómico. No hay otro caso comparable de déficit democrático. En Canarias el Estatuto de autonomía articuló un sistema electoral injusto y supuestamente transitorio que aún hoy pervive. El artículo refiere los cambios socio-jurídicos que se aprecian en la última década.In recent years the legislation on political participation and transparency was developed and the real experiences that aim to promote the participation of citizens in public affairs. It is proposed to start, as appropriate, theoretical, non-governmental organizations, citizens' forums, associations and obviously governments, parliaments and governments. Many of these proposals drive an "open democracy" as a broad concept that link the democratic deepening to new avenues for citizen participation, transparency and access to information. Additionally, Education and the educational transmission process play a decisive role in the construction of an advanced democracy. Special reference to the Canary Islands that is, in what touches to its democratic quality, a unique case in the Spanish regional universe. There is no other comparable case of democratic deficit. In the Canary Islands, the Statute of Autonomy

  6. Efectos a corto plazo de la contaminación atmosférica sobre la mortalidad: resultados del proyecto EMECAM en el gran Bilbao

    Directory of Open Access Journals (Sweden)

    Cambra Contín Koldo

    1999-01-01

    Full Text Available FUNDAMENTO: Los objetivos de este estudio han sido evaluar los efectos a corto plazo de la contaminación atmosférica por dióxido de azufre (SO2, partículas, dióxido de nitrógeno (NO2 y humos negros en la mortalidad diaria en el Gran Bilbao. MÉTODOS: Se ha seguido la metodología del proyecto EMECAM. RESULTADOS: Los incrementos de PST, tanto en valores máximos horarios como medios diarios, se asocian significativamente con la mortalidad por todas las causas, por causa circulatoria y en mayores de 70 años. No se han observado diferencias por semestres. Los aumentos en los niveles medios de NO2 se asocian a aumentos de mortalidad por causa respiratoria en todo el período y en período cálido y en mayores de 70 años en el semestre frío. CONCLUSIONES: Los niveles actuales de partículas en suspensión en el Gran Bilbao están asociados con aumentos significativos en la mortalidad. Las asociaciones encontradas entre NO2 y las muertes por causa respiratoria, muy altas principalmente en el período cálido, requieren investigaciones adicionales que valoren su independencia.

  7. Monopole search below the Parker limit with the MACRO detector at Gran Sasso

    Science.gov (United States)

    Tarle, G.

    1985-01-01

    The MACRO detector approved for the Gran Sasso Underground Laboratory in Italy will be the first capable of performing a definitive search for super-massive grand unified theory (GUT) monopoles at a level significantly below the Parker flux limit of 10 to the minus 15th power square centimeters Sr(-1) 5(-1). GUT monopoles will move at very low velocities (V approx. 0.001 c) relative to the Earth and a multifaceted detection technique is required to assume their unambiguous identification. Calculations of scintillator response to slow monopoles and measurements of scintillation efficiency for low energy protons have shown that bare monopoles and electrically charged monopoles moving at velocities as low as 5 x .0001 c will produce detectable scintillation signals. The time-of-flight between two thick (25 cm) liquid scintillation layers separated by 4.3m will be used in conjunction with waveform digitization of signals of extended duration in each thick scintillator to provide a redundant signature for slow penetrating particles. Limited streamer tubes filled with He and n-pentane will detect bare monopoles with velocities as low as 1 x 0.0001 c by exploiting monopole induced level mixing and the Penning effect.

  8. Pórfiro granítico Mojotoro (Salta): ¿Una cúpula intrusiva o un dique en el ciclo pampeano?

    OpenAIRE

    A.J. Toselli; R.N. Alonso

    2005-01-01

    El pórfiro granítico Mojotoro, constituye la cúpula de un plutón epizonal, emplazado en un área geológica bien conocida, de la Formación Puncoviscana, en las inmediaciones de la ciudad de Salta (24º47´44,9"S - 65º21´35,9"W, 1.304 m s.n.m.). Sin bien se carece de determinaciones geocronológicas, los caracteres geológicos regionales y situación estratigráfica de no alcanzar los niveles del Grupo Mesón, sugieren edades pampeanas, correspondientes a la orogenia tilcárica. Los caracteres petrográf...

  9. Sustainable management of the Gran Chaco of South America: Ecological promise and economic constraints

    Energy Technology Data Exchange (ETDEWEB)

    Bucher, E.H.; Huszar, P.C.

    1999-10-01

    The vast plain known as the Gran Chaco is a natural region of more than 1--3 million square kilometers, the second largest natural biome in south America, with only the Amazon region being larger. It extends over parts of Argentina, Bolivia, Paraguay and, marginally, Brazil. The original landscape of the region was mostly a park land with patches of hardwoods intermingled with grasslands. Increasing human encroachment, largely by poor campesinos, with associated overgrazing, excessive timber harvesting, charcoal production and over-exploitation of wildlife, is transforming the region into a dense and unproductive shrub land and is contributing to increasing rural poverty. A management system for the sustainable use of the Chaco has been developed based on a multiple-species ranching system that includes beef, timber, charcoal and wildlife production. An evaluation of the management system finds that it is capable of protecting and enhancing the resource base, while providing higher economic returns in a sustainable manner. However, high initial costs, as well as a divergence between the best interests of campersinos and society, jeopardize the feasibility of the managed system.

  10. The slow control system of the GERDA double beta decay experiment at Gran Sasso

    International Nuclear Information System (INIS)

    Brugnera, R; Garfagnini, A; Gigante, G; Hemmer, S; Zinato, D; Costa, F; Lippi, I; Michelotto, M; Ur, C

    2012-01-01

    GERDA is an experiment designed and built to study double beta decays of 76 Ge. It is currently in operation at the Gran Sasso underground laboratories (LNGS). A custom slow control system has been designed to monitor and control all the critical parameters for the proper functioning of the experiment. The main sub-components of the experiment (Cryostat, Clean Room, Water Tank, electronic crates and temperatures, High Voltage Systems, Radon Monitor and Source Insertion System) are constantly monitored by several distributed clients which write acquired data to a relational database (PostgreSQL). The latter allows to maintain a history of the whole experiment and, performing correlation between different and independent components, is useful to debug possible system malfunctions. The system is complemented by a Web server, a lightweight and efficient interface to the user on shifts and to the on-call experts, and by a dedicated Alarm dispatcher which distributes the errors generated by the components to the users allowing to react in short time. The whole project has been built around open source and custom software.

  11. Universidad de Leeds - Gran Bretaña

    Directory of Open Access Journals (Sweden)

    Chamberlin, -

    1977-11-01

    ón exclusivamente peatonal, liberándola de la distorsión del tráfico rodado y proporcionándole el grado de tranquilidad y recogimiento necesarios a su función. El gran «campus» se ve aquí subdividido en distintos núcleos ajardinados de dimensión más humana, enlazados entre sí, y en torno a cada uno de los cuales se agrupa una arquitectura homogénea y al tiempo variada, que rompe con el monolitismo convencional.

  12. Mercado metropolitano de trabajo y desigualdades sociales en el Gran Santiago: ¿Una ciudad dual?

    Directory of Open Access Journals (Sweden)

    Carlos A. de Mattos

    2002-12-01

    Full Text Available Los cambios estructurales en los mercados metropolitanos de trabajo bajo los procesos de reestructuración-informacionalización-globalización, se han situado como un tema central para el estudio de la transformación de las ciudades durante las últimas décadas. Desde esta perspectiva, el presente trabajo analiza los impactos que los procesos de modernización capitalista en Chile han tenido sobre su mercado de trabajo y sobre la evolución de la distribución del ingreso, y sobre esta base, observa sus efectos sobre la estructuración socio-territorial del Gran Santiago, discutiendo especialmente la pertinencia de la tesis de la dualización para este caso particular. Para ello, en una primera parte se esbozan los rasgos fundamentales de esta tesis, se analizan los fundamentos con los que ha sido presentada y las causas que se le atribuyen. En la segunda parte se revisan las principales transformaciones producidas en esta fase de modernización capitalista en Chile, y la evolución de las desigualdades sociales y la segregación urbana en el Gran Santiago a la luz de las transformaciones producidas en su mercado de trabajo. En la tercera y última parte, se plantea la discusión sobre la aplicabilidad de la tesis de la dualización al caso chilenoStructural changes in metropolitan labour markets under the process of reestructutration-informationalization-globalization, had become a central issue for the study of the transformation of the cities during the last decades. According to this perspective, this article analizes the impacts that the capitalist modernization in Chile has had on their labor market and the evolution of income distribution, and upon this base, observes their effects on socio-territorial estructuration of the Great Santiago, specially discussing the pertinence of the dualization theory for this particular case. For that, main characteristics of this theory are drawn; at the same time, the basis with that has been

  13. Turismo, economía y planificación urbana: una relación compleja

    Directory of Open Access Journals (Sweden)

    Manuel Ángel Santana Turégano

    2007-01-01

    Full Text Available El artículo pretende plantear la necesidad de llevar a cabo un enfoque más social de la actividad económica turística. Muchas de las actividades propiamente económicas del fenómeno turístico se ven influidas en gran medida por regulaciones no económicas como la planificación urbana. El análisis del caso de Maspalomas (Islas Canarias demuestra que lo que en la propia planificación urbana se concibe como “económico” puede variar, en función de cómo sea definido por los actores. Y que las distintas definiciones de “lo económico” favorecen a unos agentes y perjudican a otros. Por ello, se sugiere que el análisis de estos fenómenos “económicamente relevantes” y “económicamente condicionados” ha de ser incorporado al estudio de la actividad económica turística.

  14. La emigración y el exilio en la vida de Saturnino Tejera García, entre la Fraternidad y el Periodismo

    Directory of Open Access Journals (Sweden)

    Victoria María Sueiro Rodríguez

    2015-01-01

    Full Text Available Saturnino Tejera García (Santa Cruz de Tenerife, 1900-Cienfuegos, 1956; emigró a Cuba alrededor de 1916 o 1917 y se estableció en Yaguajay, y, posteriormente, en Cienfuegos. Escritor, linotipista y periodista no profesional. Se inició en la Masonería en 1929 a la logia “Fernandina de Jagua”; en 1930 al Oddfelismo “Caballeros de la Luz”. Regresó a Canarias a principios de la década del 1930; lo sorprendió la Guerra Civil Española y fue procesado por el Tribunal Supremo de la Masonería de Madrid por defender sus postulados; se exilió en Cienfuegos en 1945 y dedicó su ejecutoria a la Fraternidad y a la cultura; tuvo una sección periodística Fraternales, fundólaHoraRadial Fraternal y la logia “Federico Capdevila”, donde resultó electo Primer Vigilante y representante ante la Gran Logia de Cuba; por lo que el objetivo del trabajo ha sido valorar sus marcados aportes a la Masonería y Periodismo locales.

  15. Influencia de la pérdida foliar sobre la cosecha en el cv. Gruesa, Musa acuminata Colla (AAA, cultivado bajo invernadero en las Islas Canarias

    Directory of Open Access Journals (Sweden)

    Juan Cabrera Cabrera

    2010-12-01

    Full Text Available El cultivo de la variedad de platanera Gruesa, selección local de Dwarf Cavendish, ha experimentado un importante aumento en los últimos años en las Islas Canarias, tanto al aire libre como bajo invernadero. La eliminación de hojas, tras la floración, es una práctica habitual en los cultivos bajo invernadero. Asimismo es frecuente la pérdida de hojas por el efecto de los vientos en los cultivos al aire libre. El objetivo de este trabajo es evaluar, mediante simulación de pérdida foliar por daños mecánicos, la influencia que tiene la disminución de superficie foliar sobre el llenado y cosecha de la fruta en dicho cultivar. Para ello, cuatro meses antes de la cosecha se efectuaron cinco niveles de defoliación: 0%, 25%, 50%, 75% y 100%. Se valoran dos métodos diferentes de defoliación, eliminación de limbo foliar y tronchado de hojas con posterior corte de éstas. Se analizan y presentan datos morfológicos, fenológicos y productivos, así como valoración de la metodología empleada en este trabajo para la simulación de daños. A partir de un 25% de defoliado, equivalente a 7.5 hojas funcionales por planta, se detectaron diferencias significativas con las plantas testigos.

  16. Narcotráfico, violencia y crisis social en el Caribe insular colombiano: El caso de la isla de San Andrés en el contexto del Gran Caribe

    Directory of Open Access Journals (Sweden)

    Silvia Mantilla

    2011-01-01

    Full Text Available El presente artículo tiene por objetivo presentar un diagnóstico preliminar de la magnitud del tráfico de drogas, sus dinámicas, modalidades, y las condiciones sociales y económicas que favorecen el desarrollo de este negocio ilegal en la isla de San Andrés (Colombia. El análisis se desarrolla, no obstante, en el marco de la condición histórica y natural de “zona de tránsito” de drogas, armas y otros recursos ilegales, que se le atribuye a la región del Gran Caribe, entendida como un continuo geográfico, histórico y cultural en el que se observan patrones comunes en materia de amenazas a la seguridad, la geopolítica de las relaciones con Estados Unidos y los efectos sociales y económicos derivados del flagelo del narcotráfico. En este sentido, el caso de la isla de San Andrés (Colombia se examina más como parte de la dinámica insular gran caribeña que como parte de las tendencias propias del negocio en la Colombia continental, lo que permite, sin embargo, establecer las conexiones entre ambos espacios regionales - el insular y el continental - y, a la vez, evaluar el impacto regional del fenómeno a partir de las conexiones ilegales que desde el archipiélago se establecen con algunos países vecinos del Gran Caribe. Finalmente, se sostiene la hipótesis de que el fenómeno del narcotráfico se instala en la isla como resultado de factores geohistóricos, culturales y socioeconómicos que en conjunto han determinado la participación activa de distintos sectores de la sociedad en este negocio ilegal.

  17. López Sala, A. M., y Cachón Rodríguez, L.: Juventud e Inmigración

    Directory of Open Access Journals (Sweden)

    Virtudes Téllez Delgado

    2013-12-01

    Full Text Available Desafíos para la participación y para la integración, Canarias: Dirección General de Juventud de la Consejería de Empleo y Asuntos Sociales del Gobierno de Canarias, 2007, 274 pp

  18. A large area transition radiation detector to measure the energy of muons in the Gran Sasso underground laboratory

    International Nuclear Information System (INIS)

    Barbarito, E.; Bellotti, R.; Cafagna, F.; Castellano, M.; De Cataldo, G.; De Marzo, C.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Guarnaccia, P.; Mazziotta, M.N.; Mongelli, M.; Montaruli, T.; Perchiazzi, M.; Raino, A.; Sacchetti, A.; Spinelli, P.

    1995-01-01

    We have designed and built a transition radiation detector of 36 m 2 area in order to measure the residual energy of muons penetrating in the Gran Sasso cosmic ray underground laboratory up to the TeV region. It consists of three adjacent modules, each of 2x6 m 2 area. Polystyrene square tubes, filled with a argon-carbon dioxide gas mixture, and polyethylene foam layers are used as proportional detectors and radiators respectively. We cover such a large surface with only 960 channels that provide adequate energy resolution and particle tracking for the astroparticle physics items to investigate. The detector has been calibrated using a reduced size prototype in a test beam. Results from one module exposed to cosmic rays at sea level are shown. (orig.)

  19. Las crisis bancarias y el sistema monetario internacional en la Gran Depresión y en la actualidad

    Directory of Open Access Journals (Sweden)

    Richhild Moessner

    2011-12-01

    Full Text Available Identificamos las semejanzas y las diferencias en la escala y la naturaleza de las crisis bancarias de 2008-2009 y de la Gran Depresión, y analizamos las diferencias en la respuesta de política a las dos crisis a la luz de los sistemas monetarios internacionales predominantes. Encontramos que la escala de la crisis bancaria, medida por la reducción internacional del endeudamiento de corto plazo y de los depósitos bancarios totales, fue menor en 2008-2009 que en 1931. Sin embargo, la provisión de liquidez del banco central fue mayor en el contexto de tasas de cambio flexibles de 2008-2009 que en 1931, cuando estaba limitada en muchos países por el patrón oro.

  20. Persistencia y cambio de las unidades de producción hortícola en el Cinturón Verde del Gran Rosario

    Directory of Open Access Journals (Sweden)

    Patricia Propersi

    2006-01-01

    Full Text Available The horticulture production units in the Green Belt of Gran Rosario appeared in a space traditionally used to the exportable agricultural production. Presents since the XIXth century in the area, they were growing in function of the demographic growth to the first half of 1970 approximately, when the international prices paid for the soya made this leguminous a great competitor for land. The increasing of agricultural production implied an excessive pressure over the natural environment of the rural spaces, like an alteration of the working and living conditions of the people related to this territory. This work wonders about the modifications that happened in the local social horticultural structure in the last thirty years.Las unidades de producción hortícola del Cinturón Verde del Gran Rosario surgen en un espacio tradicionalmente priorizado para la producción agropecuaria exportable. Presentes desde el siglo XIX en el área, fueron incrementándose en función del crecimiento demográfico hasta aproximadamente mediados de la década de 1970, cuando los precios internacionales pagados por la soja convirtieron a esta leguminosa en una ventajosa competidora por tierra. El incremento de la producción agrícola implicó una presión excesiva sobre el entorno natural de los espacios rurales, como una alteración de las condiciones de trabajo y de vida de las personas vinculadas a este territorio. Este trabajo indaga las modificaciones ocurridas en la estructura social hortícola zonal en los últimos 30 años.

  1. El gran milagro... Todavía=The Great Miracle… As Yet

    Directory of Open Access Journals (Sweden)

    Paquita Suárez Coalla

    2017-06-01

    Full Text Available Resumen Este texto plantea una reflexión personal sobre las múltiples contradicciones y desafíos que la institución y la experiencia de la maternidad plantean a las mujeres, considerando un contexto muy específico: la academia norteamericana, a la que llegué como inmigrante privilegiada desde España. Si la práctica de la co-maternidad aparece en ciertos discursos como garante de la solidaridad entre las mujeres, otros factores como la raza, la clase o las puras circunstancias individuales, modulan nuestras vidas como mujeres, trabajadoras y madres. En cualquier caso, en nuestras sociedades desarrolladas e hiper-competitivas, solo gracias a las redes de apoyo formales o informales entre mujeres y a una voluntad decidida de involucrare en la crianza de l@s hij@s por parte de nuestras parejas garantiza que la experiencia de ser madres pueda ser vivida como un gran milagro.   Abstract This text proposes a personal reflection on the multiple contradictions and challenges that the institution and the experience of motherhood pose to women, considering a very specific context: the American academy, to which I arrived as a (privileged immigrant from Spain. If the practice of co-motherhood appears in certain contexts as a guarantee of solidarity among women, other factors such as race, class or purely individual circumstances modulate our lives as women, workers and mothers. In any case, in our developed and hyper-competitive societies, it is only thanks to formal or informal networks of support between women and a clear will on the part of our partners that allows us to live the experience of motherhood as a great miracle.

  2. Divergence times and colonization of the Canary Islands by Gallotia lizards.

    Science.gov (United States)

    Cox, Siobhan C; Carranza, Salvador; Brown, Richard P

    2010-08-01

    The Canary Islands have become a model region for evolutionary studies. We obtained 1.8 Kbp of mtDNA sequence from all known island forms of the endemic lizard genus Gallotia and from its sister taxon Psammodromus in order to reanalyze phylogenetic relationships within the archipelago, estimate lineage divergence times, and reconstruct the colonization history of this group. Well-supported phylogenies were obtained using maximum parsimony and Bayesian inference. Previous studies have been unable to establish the branching pattern at the base of the tree. We found evidence that G. stehlini (Gran Canaria) originated from the most basal Gallotia node and G. atlantica from the subsequent node. Divergence times were estimated under a global clock using Bayesian Markov Chain Monte Carlo methods implemented by three different programs: BEAST, MCMCTREE, MULTIDIVTIME. Node constraints were derived from subaerial island appearance data and were incorporated into the analyses as soft or hard maximal bounds. Posterior node ages differed slightly between programs, possibly due to different priors on divergence times. The most eastern Canary Islands first emerged just over 20 mya and their colonization appears to have taken place relatively quickly, around 17-20 mya. The subsequent node is consistent with cladogenesis due to colonization of Gran Canaria from the eastern islands about 11-13 mya. The western islands appear to have been colonized by a dispersal event from Lanzarote/Fuerteventura in the east to either La Gomera or one of the ancient edifices that subsequently formed Tenerife in the west, about 9-10 mya. Within the western islands, the most recent node that is ancestral to both the G. intermedia/G. gomerana/G. simonyi and the G.galloti/G. caesaris clades is dated at about 5-6 mya. Subsequent dispersal events between ancient Tenerife islands and La Gomera are dated at around 3 mya in both clades, although the direction of dispersal cannot be determined. Finally, we

  3. Autoestima, inteligencia emocional, motivación y bienestar psicológico de los estudiantes de la Universidad de Las Palmas de Gran Canaria

    OpenAIRE

    Atienza Regife, Francisco Manuel

    2015-01-01

    Programa de doctorado: Formación del Profesorado En esta investigación hemos pretendido estudiar la población de alumnos de la ULPGC en relación a la Autoestima, Inteligencia Emocional, Motivación y Bienestar Psicológico, con una muestra de mil estudiantes, usando para ello la Escala de Autoestima de Rosemberg, la Escala de Inteligencia Emocional de Salovey et al., la Escala de Motivación Educativa de Robert et al. y la Escala de Bienestar Psicológico de Ryff, y comparar con aspectos conte...

  4. Determination of boron as boric acid by automatic potentiometric titration using Gran plots [in pressurized water reactor coolant

    International Nuclear Information System (INIS)

    Midgley, D.; Gatford, C.

    1989-11-01

    Boron in PWR primary coolant and related waters may be determined as boric acid by titration with sodium hydroxide, using a glass electrode as a pH indicator. Earlier work has shown that this analysis can conveniently be carried out automatically with adequate precision and accuracy for routine use, although bias became apparent at the lowest concentrations tested. The latest titrators enable the titration data to be transformed mathematically to give two linear segments, before and after the end-point (Gran plots). The results are as precise as those from other titration methods (in which the end-point is found from the point of inflexion of a plot of pH against volume of titrant), but the bias at low concentrations is much reduced. This is achieved without extra time or involvement of the operator. (author)

  5. Los paisajes actuales y del pasado de un espacio de montaña volcánica: la Reserva Natural Especial del Chinyero (Tenerife, Islas Canarias

    Directory of Open Access Journals (Sweden)

    Esther Beltán Yanes

    2017-01-01

    Full Text Available La Reserva Natural Especial del Chinyero se localiza al noroeste de Tenerife a una altitud entre 600 y 1.550 msnm. Este espacio protegido ofrece hoy un excepcional paisaje natural integrado por volcanes recientes e históricos de morfología estromboliana, colonizados por bosques de pino canario. Sin embargo, en la reserva se descubren huellas de otros paisajes del pasado que respondían a una original convivencia de la población con los volcanes y bosques de este sector. Este trabajo tiene por objetivo el estudio del paisaje de este paraje natural con el fin de identificar y caracterizar los rasgos de su fisonomía actual, pero también recuperar otros paisajes olvidados de estas montañas. Hoy las prioridades en su protección y gestión sólo se fundamentan en sus valores naturales La restauración de estas antiguas fisonomías desvelará el importante contenido cultural que además poseen estos paisajes, pues constituían el mejor reflejo de lo que era un apro- vechamiento racional de los escasos recursos naturales. Este trabajo se centra en el estudio del paisaje a través del análisis de la relación espacial de sus componentes y la importancia relativa de éstos en la configuración de una imagen exclusiva de la montaña canaria, prestando especial énfasis en su evolución.

  6. Substituição parcial do milho por sorgo granífero na alimentação de matrizes suínas primíparas durante a lactação

    Directory of Open Access Journals (Sweden)

    F.R.C. Moreira

    2014-08-01

    Full Text Available Avaliou-se o efeito da substituição parcial do milho por sorgo granífero na dieta de matrizes suínas híbridas durante as fases de lactação e pós-desmame. Foram utilizadas 25 fêmeas, distribuídas em três tratamentos, com porcentagens crescentes de sorgo granífero - 0%, 25% e 50% - em substituição ao milho. Os animais foram avaliados durante as fases de lactação e pós-desmame, tendo sido mensurados o peso vivo (PV e a espessura de toucinho (ET ao parto, ao oitavo, 16º e 25º dias de lactação - desmame. Nesses momentos, foram realizadas colheitas de amostras de leite para análise bioquímica. As leitegadas foram pesadas no mesmo intervalo de tempo. No estro pós-desmame (RE, determinou-se o intervalo estro-cobertura (dias, PV e ET. Quanto às fêmeas, não ocorreram efeitos sobre o PV e a ET. Quanto ao número e ao peso dos leitões, as fêmeas do grupo controle apresentaram maior número de leitões nascidos vivos. O GPD dos leitões foi maior nas leitegadas dos tratamentos com 50% de sorgo. Não houve diferença para as análises do leite. No RE, não ocorreram efeitos. Dessa forma, conclui-se que o sorgo granífero pode substituir o milho em até 50% na dieta de fêmeas suínas durante lactação, sem comprometer os parâmetros produtivos e reprodutivos.

  7. Caracterización de rellenos fisurales por desequilibrios isotópicos de series radiactivas naturales. El caso del batolito granítico de El Berrocal

    Directory of Open Access Journals (Sweden)

    Hernández Benítez, A.

    1993-08-01

    Full Text Available The isotopic ratios obtained for geological materials from the granitic batholith of El Berrocal show values very close to equilibrium, like in a geochemically closed system, for the fresh granitic rock. The fracture fillings studied present values with a disequilibrium between radionuclides. This is due to the existance in the system of mobilization/retention phenomena for these elements. The fracture fillings have been sequentially leached and the results show that Uranium is preferently bound to the adsorbed and iron-rich phases. Thorium, with a lower geochemical mobility, is related mainly to the residual or detritical phases.Las relaciones isotópicas obtenidas en materiales del batolito granítico de El Berrocal muestran valores cercanos al equilibrio propios de un sistema geoquímicamente estable para la roca granítica sin alterar, mientras que en los rellenos fisurales se observan desequilibrios isotópicos que indican fenómenos actuales de movilización/retención de estos radisótopos. Los rellenos se han sometido a una lixiviación secuencial donde se observa que el uranio está asociado preferentemente a las fases adsorbidas y ricas en oxi-hidróxidos de hierro, mientras que el torio se moviliza con mayor dificultad y está asociado a la fase residual del relleno.

  8. Land-use policies and corporate investments in agriculture in the Gran Chaco and Chiquitano

    Science.gov (United States)

    le Polain de Waroux, Yann; Garrett, Rachael D.; Heilmayr, Robert; Lambin, Eric F.

    2016-01-01

    Growing demand for agricultural commodities is causing the expansion of agricultural frontiers onto native vegetation worldwide. Agribusiness companies linking these frontiers to distant spaces of consumption through global commodity chains increasingly make zero-deforestation pledges. However, production and land conversion are often carried out by less-visible local and regional actors that are mobile and responsive to new agricultural expansion opportunities and legal constraints on land use. With more stringent deforestation regulations in some countries, we ask whether their movements are determined partly by differences in land-use policies, resulting in “deforestation havens.” We analyze the determinants of investment decisions by agricultural companies in the Gran Chaco and Chiquitano, a region that has become the new deforestation “hot spot” in South America. We test whether companies seek out less-regulated forest areas for new agricultural investments. Based on interviews with 82 companies totaling 2.5 Mha of properties, we show that, in addition to proximity to current investments and the availability of cheap forestland, lower deforestation regulations attract investments by companies that tend to clear more forest, mostly cattle ranching operations, and that lower enforcement attracts all companies. Avoiding deforestation leakage requires harmonizing deforestation regulations across regions and commodities and promoting sustainable intensification in cattle ranching. PMID:27035995

  9. Land-use policies and corporate investments in agriculture in the Gran Chaco and Chiquitano.

    Science.gov (United States)

    le Polain de Waroux, Yann; Garrett, Rachael D; Heilmayr, Robert; Lambin, Eric F

    2016-04-12

    Growing demand for agricultural commodities is causing the expansion of agricultural frontiers onto native vegetation worldwide. Agribusiness companies linking these frontiers to distant spaces of consumption through global commodity chains increasingly make zero-deforestation pledges. However, production and land conversion are often carried out by less-visible local and regional actors that are mobile and responsive to new agricultural expansion opportunities and legal constraints on land use. With more stringent deforestation regulations in some countries, we ask whether their movements are determined partly by differences in land-use policies, resulting in "deforestation havens." We analyze the determinants of investment decisions by agricultural companies in the Gran Chaco and Chiquitano, a region that has become the new deforestation "hot spot" in South America. We test whether companies seek out less-regulated forest areas for new agricultural investments. Based on interviews with 82 companies totaling 2.5 Mha of properties, we show that, in addition to proximity to current investments and the availability of cheap forestland, lower deforestation regulations attract investments by companies that tend to clear more forest, mostly cattle ranching operations, and that lower enforcement attracts all companies. Avoiding deforestation leakage requires harmonizing deforestation regulations across regions and commodities and promoting sustainable intensification in cattle ranching.

  10. Labor conflict, general strikes and dynamics of trade union organizations in the Gran La Plata 1969-1972

    Directory of Open Access Journals (Sweden)

    Agustín Nava

    2017-07-01

    Full Text Available This paper is inscribed within studies on the history of the labor movement during the years '60 and '70 in Argentina and aims to analyze the cycle of general strikes and labor conflictivity that took place more specifically between the years 1969-1972 on a particular region: the Gran La Plata. Through a qualitative and quantitative analysis we will approach the dynamics of general strikes and their impact on our study region, as a kind of struggle that allows us to analyze the different tendencies and forms assumed by the conflict, the degrees of unity within the labor movement, the dynamics of trade unions, alliances with other social forces and the relationship with the state. Therefore, this article contributes to study not only certain specific dynamics of labor conflictivity in our study region, but also the more general cycle of social protest and political radicalization that took place in Argentina during the sixties and seventies

  11. Status of the GERDA Experiment at the Laboratori Nazionali del Gran Sasso

    Directory of Open Access Journals (Sweden)

    R. Brugnera

    2013-01-01

    Full Text Available The Germanium Detector Array (Gerda is a low background experiment at the Laboratori Nazionali del Gran Sasso (LNGS of the INFN designed to search for the rare neutrinoless double beta decay (0νββ of 76Ge. In its first phase, high purity germanium diodes inherited from the former Heidelberg-Moscow and Igex experiments are operated “bare” and immersed in liquid argon, with an overall background environment of 10−2 cts/(keV·kg·yr, a factor of ten better than its predecessors. Measurements on two-neutrino double beta decay (2νββ giving T1/22ν=(1.88±0.10×1021 yr and recently published background model and pulse shape performances of the detectors are discussed in the paper. A new result on 0νββ has been recently published with a half-life limit on 0νββ decay T1/20ν>2.1×1025 yr (90% C.L.. A second phase of the experiment is scheduled to start during the year 2014, after a major upgrade shutdown. Thanks to the increased detector mass with new designed diodes and to the introduction of liquid argon instrumentation techniques, the experiment aims to reduce further the expected background to about 10−3 cts/(keV·kg·yr and to improve the 0νββ sensitivity to about T1/20ν>1.5×1026 yr (90% C.L..

  12. Origen de la gran industria en la comarca del Campo de Gibraltar

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    María José Foncubierta Rodríguez

    2010-11-01

    Full Text Available Cuando en la década de los sesenta se pusieron en marcha los Planes Nacionales de Desarrollo, la comarca del Campo de Gibraltar vivía una situación de pobreza y de analfabetismo, caracterizada por la servidumbre de su población al uso militar de gran parte de su territorio, y a la presencia de la colonia británica de Gibraltar. La calificación como Zona de Preferente Localización Industrial, hizo que en el Arco de la Bahía de Algeciras se instalara un conjunto de grandes empresas que han transformado sensiblemente la comarca, en términos de empleo, económicos e incluso de cualificación de los ciudadanos. Palabras-clave: Grandes industrias, Campo de Gibraltar, Planes de Desarrollo, Bahía de Algeciras.___________________________ABSTRACT:When in the sixties are launched the National Development Plans, in order to avoid regional imbalance, the region of Campo de Gibraltar suffered a socio-economic situation of poverty and illiteracy, which was characterized by the easement to military use of its territory, and the presence of the British colony of Gibraltar. Its classification as Industrial Location Preferred Zone was the cause of a set of large companies to be installed at the Bay of Algeciras, which have significantly transformed the situation in this area, in terms of employment, economy, and even their people´s qualification.Keywords: Large industries, Campo de Gibraltar, Development Plans, Bay of Algeciras

  13. Condiciones de vida y fragmentación socio-espacial en el aglomerado Gran San Miguel de Tucumán (Noroeste Argentino

    Directory of Open Access Journals (Sweden)

    Paula Boldrini Peralta

    2014-06-01

    Full Text Available El noroeste de Argentina (NOA es el territorio donde la pobreza alcanza las condiciones más críticas y la calidad de vida registra los estándares más bajos. El aglomerado Gran San Miguel de Tucumán (GSMT constituye la ciudad cabecera de la región. Concentra niveles significativos de privación sin ocupar la situación más desfavorable, manifestando procesos de fragmentación socio-espacial a partir del sostenimiento y la agudización de las desigualdades entre sus habitantes. El objetivo es caracterizar y analizar las condiciones de vida del aglomerado GSMT a principios del siglo XXI. Para esto se utiliza el índice sintético de condiciones de vida urbano (que combina el índice de privación material de los hogares y el índice de calidad de vida urbano para detectar aquellas variables que inciden en el territorio y que generan las mejores y peores situaciones socio-espaciales del aglomerado, identificando sus características particulares. Northwestern Argentina (NOA is the territory where poverty reaches the most critical conditions and quality of life has the lowest standards. The agglomerate Gran San Miguel de Tucumán (GSMT is the main city in the region. It concentrate significant levels of privation but not the most unfavorable situation, showing processes of socio-spatial fragmentation and growing inequalities among its habitants. The objective is to characterize and analyze the living conditions of the agglomerate GSMT in the early twenty-first century. Using the syntheticalrating of urban living conditions (combiningthe material privation rating of households with the rating of urban life quality recognizing variables that affect the territory and generate the best and worst case scenarios in socio-spatial situations of the agglomerate, identifying their main characteristics.

  14. La Psicología Social Comunitaria en procesos de reubicación masiva: una experiencia de la Gran Misión Vivienda Venezuela

    Directory of Open Access Journals (Sweden)

    Luis Fernando Giuliani

    2017-11-01

    Full Text Available La Psicología Social Comunitaria cuenta con un sostenido desarrollo  teórico y metodológico que representa un gran potencial de aplicabilidad en la solución de diversos problemas sociales y en el desarrollo de las comunidades.  Por su parte, el contexto venezolano actual, donde casi todas las políticas públicas implican un alto nivel de protagonismo de la organización y la participación comunitaria, es sumamente propicio para que las ciencias sociales en general y, la Psicología Social Comunitaria en particular, integren sus aportes. En función de estos planteamientos, en el presente trabajo presentamos una experiencia realizada en el marco de la Gran Misión Vivienda Venezuela, política pública impulsada por el estado venezolano que asume una perspectiva comunitaria y participativa. La experiencia en cuestión se desarrolló entre diciembre del 2013 y diciembre del 2014 y estuvo adscripta al Gobierno del Distrito Capital, en Caracas, Venezuela. Tuvo como eje central el desarrollo e implementación de un Enfoque Comunitario Integral destinado a servir de orientación al trabajo que realizaron los equipos con las poblaciones ubicadas en los nuevos urbanismos construidos por el estado. El diseño e implementación del Enfoque, integró buena parte de las propuestas teórico -  conceptuales de la Psicología Comunitaria.   Palabras clave: vivienda, comunidad, organización, participación, políticas públicas.

  15. Estudio vulcanológico y qeoquímico del maar de la Caldera del Rey. Tenerife (Canarias

    Directory of Open Access Journals (Sweden)

    Paradas Herrero, A.

    1984-12-01

    Full Text Available In this study a cartographic, morphological, geochemical and petrographic study is made of the ''Caldera del Rey". The "Caldera del Rey" is a volcanic structure formed by two overlapping maars, The second one (maar that was formed is of greaten dimensions and destroyed part of the first one, Both maars erupted throught a possible fracture N 35 E, which is one of the directions with regional importance in the Archipelago. The eruption, which was very explosive, has been thought to be due in part to the great importance of the gaseous phase of the salic magma and also to the steam produced during the interaction of the magma with underground water. This explosivity can be clearly seen in the cleaf resalte cul out in the "Serie Basáltica Antigua" to some extent penetrated and fragmented by the eruption, The phreatomagmatic character of the eruption is evident because of the existence of accretionary lapilli. The materials emitted are exc1usively of aerial projection: agglomerates, tuffs cinerites. There was no flow of lava. ' Some of the fragments of tuffs as cinerites and pumice are comagmatic. These correspond to salic trachytic phonolitic rocks, which represent one of the last stages of differentiation of the alkaline oceanic magmas. The geochemical character of the materials of the "Caldera del Rey" is characteristic and can be easily distinguished from other nearly salic deposits formed in different cycles.

    En este trabajo se hace el estudio cartográfico, morfológico, petrográfico y geoquímico de la Caldera del Rey. La Caldera del Reyes un edificio volcánico formado por dos maars imbricados. El que se formó en segundo lugar es de mayores dimensiones y destruyó en parte el primero. Ambos aprovecharon para hacer erupción una posible fractura de dirección N 35'"E, de importancia regional en el Archipiélago. La erupción fue de una gran explosividad, que se supone debida, en parte, a la gran importancia de la fase gaseosa del

  16. Metodología de diseño, observación y cálculo de redes geodésicas exteriores para túneles de gran longitud

    Directory of Open Access Journals (Sweden)

    Velasco, J.

    2014-03-01

    Full Text Available The realization of long railway tunnels has acquired a great interest in recent years. In Spain it is necessary to address projects of this nature, but ther is no corresponding methodological framework supporting them. The tunnel observational and working geometrical properties, make that former methodologies used may be unuseful in this case: the observation of the exterior and interior geodetical networks of the tunnel is different in nature. Conditions of visibility in the interior of the tunnels, regardless of the geometry, are not the most advantageous for observation due to the production system and the natural conditions of the tunnels. Errors increase as the drilling of the tunnel progresses, as it becomes problematical to perform continuous verifications along the itinerary itself. Moreover, inherent tunnel movements due to active geodynamics must also be considered. Therefore patterns for geodetic and topographic observations have to be reviewed when very long tunnels are constructed.La realización de túneles de gran longitud para ferrocarriles ha adquirido un gran auge en los últimos años. En España se han abordado proyectos de estas características, no existiendo para su ejecución una metodología completa y contrastada de actuación. Las características geométricas, de observación y de trabajo en túneles hace que las metodologías que se aplican en otros proyectos de ingeniería no sean aplicables por las siguientes causas: separación de las redes exteriores e interiores de los túneles debido a la diferente naturaleza de los observables, geometría en el interior siempre desfavorable a los requerimientos de observación clásica, mala visibilidad dentro del túnel, aumento de errores conforme avanza la perforación, y movimientos propios del túnel durante su ejecución por la propia geodinámica activa. Los patrones de observación geodésica usados deben revisarse cuando se ejecutan túneles de gran longitud. Este

  17. EL ABSENTISMO ESCOLAR EN EL MUNICIPIO DE CANDELARIA, TENERIFE, ISLAS CANARIAS (ESPAÑA. RESULTADOS DE UN ESTUDIO INTERDISCIPLINAR DESDE LA PRAXIS DE LA EDUCACIÓN Y EL TRABAJO SOCIAL

    Directory of Open Access Journals (Sweden)

    Juan Manuel Herrera Hernández

    2013-01-01

    Full Text Available El presente artículo analiza los resultados de un estudio sobre la evolución de la incidencia y prevalencia del absentismo escolar en el municipio de Candelaria, Tenerife, Islas Canarias, España, entre los cursos académicos 2008-2011. La relevancia de éste se centra en determinar las variables moduladoras que inciden en la progresión a un nivel micro y macrosistémico del absentismo escolar en este territorio, sin perder de vista el enfoque de género. Asimismo, se arrojan un conjunto de resultados globales, de cara a articular y fortalecer un auténtico diagnóstico psico-socioeducativo, que permita ante la detección de conductas absentistas, activar el protocolo de actuación implementado en esta corporación local, el cual se viene desarrollando en el marco del Programa de Prevención del Absentismo Escolar a nivel municipal. Todo ello, contribuye en la intervención psicosocio-comunitaria a implicar de forma activa y con una visión proactiva a los diferentes actores sociales inmersos en el ámbito socioeducativo, destacando con mayor énfasis, el papel que han de jugar en tan compleja, pero a la vez necesaria tarea, las familias, los docentes y los Servicios Sociales Municipales.

  18. Factores que influyen en la diversidad de la dieta de las familias campesinas de las comunidades de San Clemente y Jesús del Gran Poder en la sierra norte del Ecuador.

    OpenAIRE

    Boada Molina, Laura Gabriela

    2015-01-01

    La presente investigación se basa en el estudio de la diversidad en la dieta de las familias campesinas de la Sierra Norte del Ecuador, específicamente en las comunidades de Jesús del Gran Poder en la Provincia del Carchi y de San Clemente en la Provincia de Imbabura.

  19. Situación laboral de los jóvenes en el Gran Resistencia y Corrientes, Argentina, en el período 2010-2013

    Directory of Open Access Journals (Sweden)

    Pablo Barbetti

    2014-09-01

    Full Text Available En este artículo se presenta un estudio descriptivo del comportamiento del mercado laboral de los jóvenes en los aglomerados urbanos Gran Resistencia y Corrientes durante el período 2010 – 2013. Se basa en el análisis de algunas de las principales variables relacionadas con la problemática socioeducativa y laboral de los jóvenes, para lo cual se ha tomado como fuente de datos secundarios la Encuesta Permanente de Hogares del INDEC correspondientes a los 4° trimestres de los años mencionados.

  20. La mujer directiva en la gran empresa española: perfil, competencias y estilos de dirección

    Directory of Open Access Journals (Sweden)

    María José Charlo Molina, Ph.D

    2012-07-01

    Full Text Available La escasa presencia de mujeres directivas en la gran empresa española evidencia una fuerte segregación de género del mercado de trabajo, independiente del nivel formativo. El objetivo de este trabajo es proporcionar el perfil y estilos de dirección de las altas ejecutivas españolas, a partir de la realización de un cuestionario y de su tratamiento estadístico usando el análisis factorial. El marco teórico lo proporcionan la gestión de la diversidad y las teorías sobre paradigmas de liderazgo en la empresa. A la luz de las mismas se tratará de comprobar si existe congruencia entre el rol de género y el rol organizativo, para proponer un nuevo paradigma que minimice los efectos negativos de las posibles incongruencias.

  1. La mujer directiva en la gran empresa española: perfil, competencias y estilos de dirección

    Directory of Open Access Journals (Sweden)

    MARÍA JOSÉ CHARLO MOLINA

    2012-01-01

    Full Text Available La escasa presencia de mujeres directivas en la gran empresa española evidencia una fuerte segregación de género del mercado de trabajo, independiente del nivel formativo. El objetivo de este trabajo es proporcionar el perfil y estilos de dirección de las altas ejecutivas españolas, a partir de la realización de un cuestionario y de su tratamiento estadístico usando el análisis factorial. El marco teórico lo proporcionan la gestión de la diversidad y las teorías sobre paradigmas de liderazgo en la empresa. A la luz de las mismas se tratará de comprobar si existe congruencia entre el rol de género y el rol organizativo, para proponer un nuevo paradigma que minimice los efectos negativos de las posibles incongruencias.

  2. Síndrome de lipodistrofia en pacientes con VIH/sida que reciben terapia antirretroviral de gran actividad en Tepic, México

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    Rogelio Alberto Fernández Argüelles

    2012-06-01

    Full Text Available Objetivo: determinar la relación entre la manifestación del síndrome de lipodistrofia y la terapia antirretroviral de gran actividad en pacientes con VIH/sida. Métodos: se realizó un estudio descriptivo, transversal y correlacional en pacientes con VIH/sida que reciben terapia antirretroviral de gran actividad, atendidos entre marzo y diciembre de 2007 en el Centro Ambulatorio de Prevención y Atención del Sida e Infecciones de Transmisión Sexual (CAPASITS de Tepic, Nayarit, México. La definición y diagnóstico del síndrome se realizó mediante el método de The National Centre in HIV Epidemiology and Clinical Research (NCHECR de Australia. Se utilizó la prueba de chi cuadrado para evaluar la dependencia entre el síndrome y la terapia. Se evaluaron 175 pacientes (128 hombres y 47 mujeres, de 19 a 72 años de edad. Resultados: se diagnosticaron 141 pacientes (80,6 con síndrome de lipodistrofia (IC95% 74,7-86.4 %; el 82,6 % correspondió a hombres y el 74,5 % a mujeres. Según la severidad, el porcentaje fue de 17 % de grado 1, 3 % de grado 2, 10 % de grado 3 y 51 % de grado IV. Las pruebas de chi cuadrado para evaluar dependencia entre el síndrome y la terapia resultaron no significativas. Conclusiones: el síndrome de lipodistrofia severo resulta un serio problema para la apariencia de pacientes de VIH/sida que reciben o no la terapia antirretroviral y que agrega un riesgo cardiovascular importante que debe ser considerado para intentar su prevención o tratamiento. Aunque los resultados pueden presentar sesgos y limitaciones, aportan una aproximación importante para sustentar y planificar intervenciones sanitarias que disminuirían el impacto del síndrome en la salud de los pacientes con VIH/sida.

  3. Patrones y flujos de la migración interna en la Gran Área Metropolitana de Costa Rica, en el período 1995-2000

    OpenAIRE

    Wendy Molina-Varela

    2009-01-01

    Los más recientes cambios en los patrones de migración interna en varios países de Latinoamérica, apuntan a los crecientes flujos de migración intrametropolitana desde los centros urbanos hacia la periferia, asociados a procesos de urbanización residencial de zonas rurales cercanas a la zona metropolitana. Este artículo analiza este fenómeno para Costa Rica, estimando los patrones de migración interna dentro del Gran Área Metropolitana (GAM), y tratando de determinar algunos factores de atr...

  4. C2GT intercepting CERN neutrinos to Gran Sasso in the Gulf of Taranto to measure $\\theta_13$

    CERN Document Server

    Ball, A E; Camilleri, L L; Catinaccio, A; Chelkov, G A; Dydak, F; Elagin, A; Frandsen, Poul Kjaer; Gostkin, M I; Grant, A; Guskov, A; Joram, C; Krumshtein, Z; Müller, H; Postema, H; Price, M; Rovelli, T; Schinzel, D; Séguinot, Jacques; Valenti, G; Voss, R; Wotschack, J; Zhemchugov, A S

    2007-01-01

    Today's greatest challenge in accelerator-based neutrino physics is to measure the mixing angle \\thonethree\\ which is known to be much smaller than the solar mixing angle \\thonetwo\\ and the atmospheric mixing angle \\thtwothree . A non-zero value of the angle \\thonethree\\ is a prerequisite for observing CP violation in neutrino mixing. In this paper, we discuss a deep-sea neutrino experiment with 1.5~Mt fiducial target mass in the Gulf of Taranto with the prime objective of measuring \\thonethree. The detector is exposed to the CERN neutrino beam to Gran Sasso in off-axis geometry. Monochromatic muon-neutrinos of $\\approx 800$~MeV energy are the dominant beam component. Neutrinos are detected through quasi-elastic, charged-current reactions in sea water; electrons and muons are detected in a large-surface, ring-imaging Cherenkov detector. The profile of the seabed in the Gulf of Taranto allows for a moveable experiment at variable distances from CERN, starting at 1100 km. From the oscillatory pattern of the dis...

  5. Alexithymia, Illness Perception and Self-management Competency in Psoriasis

    Directory of Open Access Journals (Sweden)

    Marie H. Larsen

    2017-06-01

    Full Text Available Alexithymia, defined as difficulty in describing or recognizing emotions, has been shown to be connected with psoriasis, but its relationship with self-management of psoriasis has not been explored. The aim of this study was to assess the frequency of alexithymia and its relationship with self-management and illness perception in the context of psoriasis. A total of 163 patients participating in 3 weeks of climate heliotherapy (CHT at Gran Canaria were assessed for alexithymia using the Toronto Alexithymia Scale (TAS-20 at baseline. Self-reported measures for self-management (Health Education Impact Questionnaire; heiQ, and disease severity and illness perception (Brief Illness Perception Questionnaire; BIPQ were assessed twice. Of all patients, 14.1% were characterized as alexithymic and 22.1% scored in the intermediate range. Alexithymic patients scored significantly worse in all heiQ domains, and reported worse illness perception. However, there were no between-group differences in heiQ or BIPQ change from baseline to after CHT. In conclusion, this study shows that alexithymia indicates inferior self-management and reaffirms the associations with illness perception. Further research is required into these relationships.

  6. An evolving model for the lodging-service network in a tourism destination

    Science.gov (United States)

    Hernández, Juan M.; González-Martel, Christian

    2017-09-01

    Tourism is a complex dynamic system including multiple actors which are related each other composing an evolving social network. This paper presents a growing model that explains how part of the supply components in a tourism system forms a social network. Specifically, the lodgings and services in a destination are the network nodes and a link between them appears if a representative tourist hosted in the lodging visits/consumes the service during his/her stay. The specific link between both categories are determined by a random and preferential attachment rule. The analytic results show that the long-term degree distribution of services follows a shifted power-law distribution. The numerical simulations show slight disagreements with the theoretical results in the case of the one-mode degree distribution of services, due to the low order of convergence to zero of X-motifs. The model predictions are compared with real data coming from a popular tourist destination in Gran Canaria, Spain, showing a good agreement between analytical and empirical data for the degree distribution of services. The theoretical model was validated assuming four type of perturbations in the real data.

  7. The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes

    Directory of Open Access Journals (Sweden)

    Marcos Hernández Suárez

    2016-11-01

    Full Text Available Tomatoes have been described as a functional food because of their particular composition of different bioactive compounds. In this study, the proximate composition, minerals and trace elements, and antioxidant compounds were determined in two tomato cultivars (Mariana and Dunkan that were grown in Gran Canaria (Spain either conventionally or hydroponically. Although compositional data of this type require being subjected to the specific statistical techniques of compositional analysis, this approach has not usually been considered in this context. In the present case, a compositional Mann–Whitney U test of the data showed significant differences for each factor (cultivar and cultivation system in several of the compositional variables studied. For the differences between cultivars, these parameters were the protein, Mg, lycopene, ascorbic acid, citric acid, and fumaric acid contents. For the differences between cultivation systems, they were mainly those of the mineral and trace elements group. Although one-year data are insufficient to make clear relationship among compounds because more repetitions in several localities and years are necessary, the compositional HJ-biplot (in which the links provide estimates of the linear relationship among variables results agreed with other scientific results about linear relationship among some compounds analyzed.

  8. Tránsito a la “modernidad”: crisis, turismo, administración, evolución e hibridez

    Directory of Open Access Journals (Sweden)

    Rita María Trujillo González

    2016-01-01

    Full Text Available En La Aldea de San Nicolás, localidad situada en el oeste de Gran Canaria, la actual crisis tomatera ha provocado la búsqueda de alternativas económicas y complementarias a la agricultura. Una posibilidad que ha cobrado relevancia en los últimos años, es el otorgamiento de un mayor protagonismo al “turismo rural”. En este artículo me propongo plantear las dificultades a las que ha de hacer frente esta opción, como es el desacuerdo existente entre los vecinos ante una mayor implantación turística, al hacer un uso diferenciado de conceptos relevantes en la temática turística, tales como “identidad”, “cultura”, “valor” o “tradición”, que pueden abarcar contenidos más “esencialistas” o más “constructivistas”. Por otra parte, planteo la posibilidad de observar el proceso administrativo como una situación de tránsito propia de las sociedades contemporáneas, con características análogas al rito de paso, que modifican la realidad a nivel macro y micro etnográfico.

  9. Simultaneous Determination of Hormonal Residues in Treated Waters Using Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectrometry

    Directory of Open Access Journals (Sweden)

    Rayco Guedes-Alonso

    2013-01-01

    Full Text Available In the last years, hormone consumption has increased exponentially. Because of that, hormone compounds are considered emerging pollutants since several studies have determinted their presence in water influents and effluents of wastewater treatment plants (WWTPs. In this study, a quantitative method for the simultaneous determination of oestrogens (estrone, 17β-estradiol, estriol, 17α-ethinylestradiol, and diethylstilbestrol, androgens (testosterone, and progestogens (norgestrel and megestrol acetate has been developed to determine these compounds in wastewater samples. Due to the very low concentrations of target compounds in the environment, a solid phase extraction procedure has been optimized and developed to extract and preconcentrate the analytes. Determination and quantification were performed by ultrahigh performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS. The method developed presents satisfactory limits of detection (between 0.15 and 9.35 ng·L−1, good recoveries (between 73 and 90% for the most of compounds, and low relative standard deviations (under 8.4%. Samples from influents and effluents of two wastewater treatment plants of Gran Canaria (Spain were analyzed using the proposed method, finding several hormones with concentrations ranged from 5 to 300 ng·L−1.

  10. [Influence of promotional material on hand hygiene in the safety culture of a tertiary hospital].

    Science.gov (United States)

    Molina-Cabrillana, J; Dorta-Hung, M E; Otero Sanz, L; Henández Vera, J R; Martín-Rodríguez, M M; García de Carlos, P

    2016-06-01

    In order to increase safety culture about hand hygiene by means of messages and reminders about its importance in preventing nosocomial infections, we developed a new set of materials in the Complejo Hospitalario Universitario Insular Materno-Infantil of Las Palmas, Gran Canaria, constitued by two centres with 450 beds each and acredited for medical internal residents training. We hired a well-known caricaturist, who adapted the messages to the local way of speaking, by using characters that used to appear in his artwork in the local newspaper. Also, we continued to work with other graphic design professionals. We monitored adherence and consumption of products for hand rubbing. We noted an increase in both indicators in the following months after the implementation of this strategy. Moreover, we revised the infrastructures for hand hygiene, and were able to demonstrate improvements in most of the patient care areas. The material was well accepted by professionals, patients and visitors. No other interventions were made, so we think improvements can be attributable to this strategy in our setting. Copyright © 2016 SECA. Published by Elsevier Espana. All rights reserved.

  11. Evaluation of energy saving in large scale projects in domestic lighting; Evaluacion del ahorro de energia en proyectos de gran escala en alumbrado domestico

    Energy Technology Data Exchange (ETDEWEB)

    Valera Negrete, Adrian [Comision Federal de Electricidad, Mexico, D.F. (Mexico)

    2001-07-01

    The present work shows the methodology and the necessary parameters are indicated to evaluate the energy saving and the reduction of power demand obtained, by the large scale projects of substitution of incandescent lamps by compact, circular fluorescent and globe type lamps in the domestic sector. [Spanish] El presente trabajo muestra la metodologia y se indican los parametros necesarios para evaluar el ahorro de energia y reduccion de la demanda de potencia obtenidos, por los proyectos de gran escala de sustitucion de focos incandescentes por lamparas fluorescentes compactas, circulares y tipo globo en el sector domestico.

  12. Reversing song behavior phenotype: testosterone driven induction of singing and measures of song quality in adult male and female canaries (Serinus canaria)

    Science.gov (United States)

    Madison, Farrah N.; Rouse, Melvin L.; Balthazart, Jacques; Ball, Gregory F

    2014-01-01

    In songbirds, such as canaries (Serinus canaria), the song control circuit has been shown to undergo a remarkable change in morphology in response to exogenous testosterone (T). It is also well established that HVC, a telencephalic nucleus involved in song production, is significantly larger in males than in females. T regulates seasonal changes in HVC volume in males and exposure to exogenous T in adult females increases HVC volume and singing activity such that their song becomes more male-like in frequency and structure. However, whether there are sex differences in the ability of T to modulate changes in the song system and song behavior has not been investigated in canaries. In this study, we compared the effects of increasing doses of T on singing and song control nuclei volumes in adult male and female American Singer canaries exposed to identical environmental conditions. Males were castrated and all birds were placed on short days (8L:16D) for 8 weeks. Males and females were implanted either with a 2, 6 or 12 mm long Silastic™ implant filled with crystalline T or an empty 12 mm implant as control. Birds were then housed individually in sound attenuated chambers. Brains were collected from six birds from each group after 1 week or 3 weeks of treatment. Testosterone was not equally effective in increasing singing activity in both males and females. Changes in song quality and occurrence rate took place after a shorter latency in males than in females however, females did undergo marked changes in a number of measures of song behavior if given sufficient time. Males responded with an increase in HVC volume at all three doses. In females, T-induced changes in HVC volume only had limited amplitude and these volumes never reached male-typical levels a suggesting that there are sex differences in the neural substrate that responds to T. PMID:25260250

  13. Estudios arqueológicos de pre construcción del Gran Canal Interoceánico de Nicaragua

    Directory of Open Access Journals (Sweden)

    Sagrario Balladares-Navarro

    2017-03-01

    Full Text Available Los resultados obtenidos en las dos primeras jornadas de campo de los estudios arqueológicos de pre construcción del Gran Canal Interoceánico de Nicaragua (GCIN, dan cuenta de la transformación de un espacio en el litoral Pacífico sur del país, ya que en él fueron encontradas varias elevaciones artificiales alrededor de un manglar, expresión de una alta y dinámica producción de sal en el pasado, iniciada en el 800 dC. El rescate del patrimonio arqueológico en la ruta proyectada se inició en noviembre de 2015 desde la UNAN-Managua, financiado por la concesionaria HKND Group y el CNU en cumplimiento a las leyes vigentes nacionales e internacionales. Es un primer paso en contribución al Plan Nacional de Desarrollo Humano, ya que entre otras cosas, se trata de recuperar la historia de los pueblos originarios que existieron a lo largo de esta ruta y de quienes aún se conoce poco.

  14. Sistemas de control de vibraciones en estructuras de gran altura

    Directory of Open Access Journals (Sweden)

    Montanaro, Maria Inés

    2002-02-01

    Full Text Available The increasing of big cities with a great population density, flows to the multiplication of light and thin towers in very high buildings, with an small natural damping. So, those buildings are exposed to the wind oscillations and to the earthquakes. Those oscillations could produce damages in the structure, affect its functionality and/or to be a cause of discomfort. In order to reduce the structural risk of excessive deformations or accelerations, we want to bring up here a solution lied with the dissipation of vibrational energy in the structural dampers. The objective of this work is to bring a c1ear and complete c1assification and description of all isolation and vibration controls known till the moment and their main application' fields. The definition of those systems is completed with graphics, characteristics and structures examples. This c1assification will allow a real interpretation of advantages and disadvantages of all isolation and vibration controls concerning structural applications.El aumento de la densidad poblacional y de las grandes urbes ha incrementado la necesidad de las torres de edificios de gran altura, las cuales tienden a ser muy livianas y delgadas, por lo tanto poseen un amortiguamiento natural muy pequeño, lo que los hace más propensos a las oscilaciones del viento y los sismos. Dichas oscilaciones pueden causar daño a la estructura, afectar su funcionalidad y/o causar incomodidad. Una solución planteada para reducir el riesgo estructural de experimentar deformaciones excesivas o aceleraciones es la disipación de energía vibracional en los amortiguadores estructurales. El objetivo de este trabajo es brindar una clasificación clara y completa de todos los sistemas de aislación y control de vibraciones existentes hasta al momento, además de una descripción de los mismos y sus principales campos de aplicación. La definición de los sistemas incluye gráficos, características y ejemplos de estructuras

  15. Factores asociados a la no adherencia al tratamiento antirretroviral de gran actividad en adultos infectados con el VIH-sida

    Directory of Open Access Journals (Sweden)

    Óscar Alvis

    2009-12-01

    Full Text Available Introducción: La no adherencia al tratamiento antirretroviral de gran actividad (Targa es la principal causa de fracaso terapéutico. Objetivos: Determinar la prevalencia y los factores asociados a la no adherencia al Targa en adultos infectados con el VIH-sida. Diseño: Estudio transversal. Institución: Servicio de Infectología, Hospital Nacional Arzobispo Loayza. Participantes: Pacientes infectados con el VIH que se encontraban recibiendo tratamiento antirretroviral. Intervenciones: A pacientes infectados con el VIH que se encontraban recibiendo tratamiento antirretroviral en el hospital, se aplicó un cuestionario estructurado, elaborado en función a instrumentos que evalúan la adherencia y factores asociados. Para determinar la asociación, se empleó las pruebas de chi cuadrado y t de student, se estableció un nivel de significación estadística p<0,05, y para calcular el riesgo se utilizó el OR, con intervalos de confianza de 95%. Se realizó análisis de regresión logística. Principales medidas de resultados: No adherencia al tratamiento antirretroviral de gran actividad. Resultados: Se encuestó 465 personas; la edad promedio fue 36,8±9,1 años; 64,1% era varón. El 35,9% de los encuestados resultó ser no adherente. Los factores independientemente asociados a la no adherencia fueron: ser homosexual/bisexual (OR: 3,85, IC95% 1,98 a 7,51, tener una baja calidad de vida relacionada a la salud (OR: 6,22, IC95% 3,47 a 11,13, poco apoyo social (OR: 5,41, IC95% 3,17 a 9,22, no tener domicilio fijo (OR 3,34, IC95% 1,93 a 5,79, tener morbilidad psíquica (OR 2,93, IC95% 1,78 a 4,82 y tener mayor tiempo en tratamiento (OR 1,04, IC95% 1,02 a 1,07. Conclusiones: La prevalencia de no adherencia fue mayor a la reportada previamente en este mismo hospital, pero similar a la encontrada en diferentes estudios, pese a la heterogeneidad de los mismos. Los factores de tipo psicosocial fueron los que influyeron de forma más importante en la

  16. El costo de ser independiente: el diseño fiscal de José María Castillo y Rada para la Gran Colombia, 1823-1827 The Cost of Being Independent. José María Castillo y Rada’s Tax Design for The Gran Colombia, 1823-1827

    Directory of Open Access Journals (Sweden)

    Óscar Javier Barrera

    2010-12-01

    Full Text Available A través del diseño fiscal elaborado por José María Castillo y Rada en los años inmediatamente posteriores a la obtención de la independencia de España, este ensayo ofrece al lector un cercamiento a algunos de los desafíos fiscales que afrontó la tentativa ambiciosa de integración regional conocida como la Gran Colombia. Enprimer lugar, se realiza un breve recorrido por la estructura fiscal de los últimos años virreinales. En segunda instancia, se presentan los rasgos generales de la propuesta diseñada por Castillo y Rada y a continuación se pasa a considerar los desafíos afrontados por dicha propuesta. El trabajo concluye que los modelos historiográficos que se ha valido de la dicotomía liberalismo/proteccionismo se quedan cortos en la comprensión del alcance de esta política fiscal, la cual fue formulada dentro de un proceso de transición del sistema virreinal neogranadino al republicano que operó como un juego complejo de ajustes, innovaciones y perduraciones.Through fiscal design developed by José María Castillo y Rada in the years immediately after the independence from Spain, this paper offers to the reader an insight into some of the fiscal challenges faced by the regional integration attempt known as the Gran Colombia. First, there is a brief tour to the fiscal structure of the last colonial years. Secondly, it presents the general features of the proposal designed by Castillo y Rada and then the argumentation moves to the consideration of the challenges faced by this proposal. The paper concludes that historiographical models that have used the dichotomy Liberalism / Protectionism fall short in understanding the scope of this Fiscal Policy, which was formulated through a process of transition from colonial Nueva Granda system to the Republican system, which operated as a complex set of adjustments, innovations and permanences.

  17. Relación del régimen hídrico actual con algunos impactos ambientales en el gran humedal del norte de Ciego de Ávila.

    OpenAIRE

    Vidal Olivera, V.M.; González-Abreu Fernández, R.

    2010-01-01

    Producto a las transformaciones que ha sufrido el Gran Humedal del Norte de Ciego de Ávila (GHNCA), con la inserción de obras hidráulicas y civiles a lo largo de los años, actualmente se puede apreciar el impacto ambiental a este ecosistema, a la biodiversidad en general y a otros asociados a él como son los manglares, ocasionados principalmente por las variaciones del régimen hidrológico en esta zona, por lo que en estos momentos se encuentra en marcha un proyecto territorial de ...

  18. Design, construction, and implementation of an online platform for patients with type 1 diabetes: EncoDiab

    Directory of Open Access Journals (Sweden)

    Alvarado-Martel D

    2015-06-01

    Full Text Available Dácil Alvarado-Martel,1,2,* Francesca Cañas,3,* Rebeca Velasco,1 Nuria Alcubierre,3 Laura López-Ríos,1,2 Ferran Rius,4 Francisco Javier Nóvoa,1,2 Armando Carrillo,1,2 Marta Hernández,3,4 Ana María Wägner,1,2,* Dídac Mauricio5,6,* 1Department of Endocrinology and Nutrition, Complejo Hospitalario Universitario Insular Materno-Infantil de Gran Canaria, Las Palmas, Spain; 2Instituto Universitario de Investigaciones Biomédicas y Sanitarias, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain; 3Department of Endocrinology and Nutrition, Institut de Recerca Biomèdica de Lleida (IRBLleida, Lleida, Spain; 4Department of Endocrinology and Nutrition, Hospital Universitari Arnau de Vilanova, Lleida, Spain; 5Hospital Universitari Germans Trias i Pujol, Badalona, Spain; 6Health Sciences Research Institute Germans Trias i Pujol, Badalona, Spain *These authors contributed equally to this work Purpose: The purpose of this study was to develop, build, and implement a virtual platform equipped with practical tools, relevant contents, and communication rooms, with the aim of facilitating patients’ self-management of type 1 diabetes mellitus (T1DM.Materials and methods: The design of the platform was based on the suggestions of T1DM patients who were being managed at two reference hospitals. Patients’ needs and preferences were identified in group discussion sessions. Before having access to the platform, patients underwent a baseline assessment, which included physical examination and the administration of validated questionnaires for evaluation of clinical background, quality of life, treatment satisfaction, and well-being.Results: A total of 33 patients were included in the study; 54.5% of them were men, their median age was 34 (18–50 years, the median duration of diabetes was 15 (1–38 years, and the median A1C was 7.4% (6%–12.6%. Based on their suggestions and requests, the online platform EncoDiab was built and organized into

  19. IMPLICACIONES TERRITORIALES DE UNA GRAN OBRA HIDRÁULICA: EL EMBALSE DEL TRANCO (CABECERA DEL GUADALQUIVIR

    Directory of Open Access Journals (Sweden)

    Eduardo Araque Jiménez

    2012-01-01

    Full Text Available Situado en la cabecera del Guadalquivir, el embalse del Tranco fue durante muchos años el de mayor capacidad de almacenamiento de agua de toda Andalucía. Sus aportaciones resultaron fundamentales para el sostenimiento del regadío en el gran valle bético, al tiempo que con sus aguas pudo generarse una parte de la energía eléctrica que se precisaba para la modernización del aparato productivo andaluz y la mejora de las condiciones de vida en multitud de hogares en el valle del Guadalquivir. Frente a estas perspectivas tan halagüeñas, las aguas embalsadas en el Tranco apenas tuvieron repercusiones socioeconómicas positivas para la Sierra de Segura. Las expropiaciones masivas a las que dio origen tanto la construcción del embalse como la repoblación forestal que lo acompañó, propiciaron la emigración masiva de centenares de vecinos, muchas veces en condiciones de extrema precariedad. Por otro lado, las aguas del Tranco nunca se utilizaron para la expansión del regadío por algunos de los fértiles valles próximos al embalse, ni la electricidad generada a pie de presa llegó a los hogares serranos, que siguieron careciendo de este servicio durante muchos años.

  20. Hacia un nuevo y diferente “Flanco Sur” en el Gran Magreb-Sahel

    Directory of Open Access Journals (Sweden)

    Raquel Barras

    2015-10-01

    Full Text Available La unión de espacios subgobernados, la corrupción, el crimen organizado y terrorismo es la amenaza a la que se enfrenta la UE y sus estados miembros en el Gran Magreb, el cual está recreando un nuevo y diferente Flanco Sur al que existía durante la Guerra Fría. El aumento de la actividad extremista en la región del Sahel-Sáhara a partir de 2005 ha ido en paralelo con el crecimiento de las redes de crimen organizado transnacional a través del área. Aunque hay un intenso debate sobre su relación, intensidad e impacto, es una dinámica innegable en el área. La UE no tiene realmente una política unificada Magreb-Sahel y en términos de crimen organizado y terrorismo, el Sahel no se puede separar del Magreb. Hay una comprensión limitada y parcial del problema tanto en términos de amenazas como en soluciones viables, ampliado irremediablemente por la acción de Boko Haram y desbordando la visión, proyección y estrategia de la UE. A pesar del "Sahel Regional Action Plan 2015-2020", las medidas tomadas son reducidas, muy recientes y probablemente insuficientes y tardías desde el punto de vista de la dinámica y sinergia entre terrorismo-crimen organizado en un contexto de corrupción. La UE sigue manteniendo un enfoque seguridad-desarrollo, básicamente en una concepción de seguridad humana, a pesar de que este enfoque es altamente discutible para enfrentarse a este tipo de amenazas.

  1. Análisis multivariado del dimorfismo sexual en doce etnias del Gran Chaco

    Directory of Open Access Journals (Sweden)

    Marcellino, Alberto José

    2002-01-01

    Full Text Available Se ensaya el cálculo de las distancias morfológicas para cuantificar el dimorfismo antropométrico sexual en distintas etnias aborígenes. Paralelamente se investiga: a- el grado de las diferencias entre los dimorfismos de los segmentos cefálico y postcefálico; b- los resultados con distintas combinaciones de variables, redundantes y no redundantes; c- la magnitud de participación de "forma" y "tamaño" en la distancia "total". Las distancias se calcularon mediante los algoritmos de Penrose (1954. El material utilizado fueron los datos antropométricos (inéditos correspondientes a 890 varones y 844 mujeres, obtenidos por Jehan A.Vellard, en 12 etnias del Gran Chaco Sudamericano. Las conclusiones indican: 1 la sensibilidad discriminatoria del procedimiento; 2 el segmento corporal postcefálico proporciona valores de dimorfismo notoriamente más altos que el cefálico en 11 de las 12 etnias investigadas, siendo los Ayoreo la única en que ambas distancias resultan iguales; 3 el dimorfismo sexual antropométrico está dado por el componente "tamaño" más que por el componente "forma", en proporciones cuyo rango aproximado es de 3:1 a 1:0; 4 se indica la combinación más apta para calcular el dimorfismo somatométrico "global" (cefálico+postcefálico que consta de 14 dimensiones, sin redundancia; 5 se plantea la hipótesis de que la razón dimorfismo cefálico/dimorfismo corporal postcefálico se vincularía, en relación inversa, al grado de mestización del grupo.

  2. La Gran Guerra en la historiografía argentina. Balance y perspectivas de investigación

    Directory of Open Access Journals (Sweden)

    María Inés Tato

    2014-04-01

    Full Text Available A pesar del impacto que la Gran Guerra tuvo en la sociedad argentina, esta temática ha suscitado un escaso interés entre los historiadores, que sólo ha comenzado a revertirse en la última década. Este artículo ofrece un examen de las principales líneas de investigación que han abordado la cuestión: la historia económica, la historia diplomática y, más recientemente, la historia social y la historia cultural. Asimismo, propone algunas reflexiones acerca de posibles perspectivas de investigación que contribuyan a una exploración más sistemática de esta problemática.   Abstract   Despite the impact of the Great War on Argentine society, this subject has inspired a scarce interest among historians, which has only started to be reverted in the last decade. This paper offers an examination of the main research lines that have dealt with the matter: economic history, diplomatic history, and, more recently, social history and cultural history. It also suggests some reflections on possible research perspectives which could contribute to a more systematic exploration of this problem.

  3. GRAN SASSO/GRENOBLE: Artificial neutrino source confirms solar neutrino result

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    In 1992, the Gallex experiment announced the first observation of the neutrinos produced in the primary proton-proton fusion reaction in the core of the Sun, reaction at the origin of the energy production by our star (September 1992, page 1). The Gallex team stressed that the observed neutrino flux was only about two-thirds of the predicted level, confirming the deficit observed by the two pioneering experiments, Ray Davis' chlorine-based detector in the USA and the Kamiokande study in Japan (which are only sensitive to neutrinos from subsidiary solar fusion processes). This deficit demands explanation, and could considerably modify our understanding of how stars shine and/or of neutrino physics. But before drawing conclusions, the Gallex result had to be checked. Gallex, installed in the Italian Gran Sasso underground Laboratory, is a radiochemical experiment using neutrino interactions to transform gallium-71 into germanium-71. The latter is radioactive and decays with a half-life of 11.4 days. Counting the germanium-71 atoms extracted from the target tank measures the neutrino flux to which the detector is exposed. Neutrinos are famous for their reluctance to interact. 65 billion per square centimetre per second on the surface of the Earth produce only one germanium-71 atom in the Gallex target containing 30 tons of gallium. This is at the limit of homeopathy (extracting few atoms of germanium-71 from a solution containing 10 30 atoms) and needs careful checking. Since it is not possible to switch off the Sun, the only recourse was to build an artificial neutrino source more powerful than the Sun as a benchmark. This was done last summer. Last May, 36 kilograms of chromium grains were placed in the Siloe reactor of the French Commissariat à l'énergie atomique, Grenoble. The chromium had been previously enriched to 40% chromium-50 by the Kurchatov Institute in Moscow (natural chromium contains only 4.5% chromium-50). A dedicated core was built for

  4. New foot remains from the Gran Dolina-TD6 Early Pleistocene site (Sierra de Atapuerca, Burgos, Spain).

    Science.gov (United States)

    Pablos, Adrián; Lorenzo, Carlos; Martínez, Ignacio; Bermúdez de Castro, José María; Martinón-Torres, María; Carbonell, Eudald; Arsuaga, Juan Luis

    2012-10-01

    This paper presents and describes new foot fossils from the species Homo antecessor, found in level TD6 of the site of Gran Dolina (Sierra de Atapuerca, Burgos, Spain). These new fossils consist of an almost complete left talus (ATD6-95) and the proximal three-quarters of a right fourth metatarsal (ATD6-124). The talus ATD6-95 is tentatively assigned to Hominin 10 of the TD6 sample, an adult male specimen with which the second metatarsal ATD6-70+107 (already published) is also tentatively associated. Analysis of these fossils and other postcranial remains has made possible to estimate a stature similar to those of the specimens from the Middle Pleistocene site of Sima de los Huesos (Sierra de Atapuerca, Burgos, Spain). The morphology of the TD6 metatarsals does not differ significantly from that of modern humans, Neanderthals and the specimens from Sima de los Huesos. Talus ATD6-95, however, differs from the rest of the comparative samples in being long and high, having a long and wide trochlea, and displaying a proportionally short neck. Copyright © 2012 Elsevier Ltd. All rights reserved.

  5. Caracterización de cyberbullying en el gran Santiago de Chile, en el año 2010

    Directory of Open Access Journals (Sweden)

    Jorge Varela T.

    Full Text Available El estudio caracteriza el cyberbullying en estudiantes del gran Santiago de Chile (2010. Se aplicó una encuesta de autorreporte (Cuestionario de Experiencias de Internet a 1.357 estudiantes entre 7º básico a IVº medio. El diseño de muestra fue no probabilístico por cuotas en 32 establecimientos educacionales, ponderados según género, curso y tipo de dependencia. El 50% fueron hombres, con un promedio de edad 15 años (DS= 1,82 años. Resultados: El 11,4% reportó haber sido víctima de algún tipo de cyberbullyingy el 12,5% victimario. No se encontraron diferencias significativas en las víctimas según sexo, curso y tipo de dependencia. Sólo los hombres reportan identificarse en forma más frecuente con los victimarios que las mujeres. Conclusiones: El cyberbullying es un fenómeno existente en la realidad chilena, siendo - mayormente - homogéneo en su presentación. Dado esto, se plantean nuevos desafíos y preguntas respecto a sus consecuencias tanto para los estudiantes como para todo el sistema escolar.

  6. I Fulfilled Your Dream: The Pedagogy of Oneiromancy and Practical Knowledge among Pilagá Women of the Gran Chaco (Formosa, Argentina

    Directory of Open Access Journals (Sweden)

    Ana María Spadafora

    2010-02-01

    Full Text Available  The article reflects on the way dream experiences have been addressed by anthropology, taking up my fieldwork experience with Pilagá women of the Gran Chaco Region. It discusses the assumptions, implicit or explicit, of some anthropological approaches to the analysis of dreams and their excessive concentration on the relation of dreams to shamanism and mythology. Based on ethnographic material obtained with some Pilagá women, it takes up the links, as established by one of my main collaborators, between dreaming, narrating, interpreting, doing, and copying. It aims to emphasize that the relations between dream experience and practical action correspond to what I call the "pedagogy of oneiromancy", a category that stresses the web that connects representations to the behavior and actions associated with the life trajectories and recent experiences of indigenous women.  

  7. Time-Shift in the OPERA set-up: proof against superluminal neutrinos without the need of knowing the CERN-LNGS distance and Reminiscences on the origin of the Gran Sasso Lab, of the 3rd neutrino and of the "Teramo Anomaly"

    CERN Document Server

    Zichichi, Antonino

    2012-01-01

    The LVD time stability allows to establish a time-shift in the OPERA experiment, thus providing the first proof against Superluminal neutrinos, using the horizontal muons of the "Teramo Anomaly". This proof is particularly interesting since does not need the knowledge of the distance between the place where the neutrinos are produced (CERN) and the place where they are detected (LNGS). Since the Superluminal neutrinos generated in the physics community a vivid interest in good and bad behaviour in physics research, the author thought it was appropriate to recall the origin of the Gran Sasso Lab, of the 3rd neutrino, of the horizontal muons due to the "Teramo Anomaly" and of the oscillation between leptonic flavours, when the CERN-Gran Sasso neutrino beam was included in the project for the most powerful underground Laboratory in the world.

  8. Artistas e identidades discursivas. El gran telón, el Luis Caballero de la crítica y el Caballero de Caballero

    Directory of Open Access Journals (Sweden)

    Sergio Rodríguez

    2015-01-01

    Full Text Available En este artículo presento un análisis de las producciones discur-sivas que circularon alrededor de la obra El gran telón (1990 del artista Luis Caballero, utilizando principalmente el método de análisis del discurso en tres capas propuesto por el teórico Nor-man Fairclough. Esto con el fin de delimitar las diferencias de identificación y representación que se produjeron entre la crítica de arte de la época y el propio artista sobre su obra. Además, en un sentido más amplio, busco ejemplificar la manera como la crítica de arte se integra a un sistema social en una influencia recíproca.

  9. Canary literature and culture in the reign of Carlos IV (1788-1808 La literatura y la cultura canaria durante el reinado de Carlos IV (1788-1808

    Directory of Open Access Journals (Sweden)

    Victoria GALVÁN GONZÁLEZ

    2012-01-01

    Full Text Available This work wants to offer a short view of the literature and culture developed in the Canary Isles during the reign period of Charles IV, from a general point of view. Therefore, I cannot offer a detailed perspective of each of the aspects dealt with. This way, what is tackled in this work is a revision of the socio-cultural activities connected to the gatherings or to the economic societies, the educative circumstances, the activity developed by the bishops with the carrying out of facilities or with a reforming teaching at the reading level, such as Tavira, the production of books with an allusion to the printing activity, the most developed literary genres and their authors, the topic preference in poetry —majority genre—, in prose and in theatre, and an allusion to some of the private libraries.Este trabajo quiere ofrecer un panorama sintético de la literatura y la cultura desarrollada en Canarias durante el reinado de Carlos IV, atendiendo a sus trazos generales. No puede ofrecer, por tanto, una atención detenida de cada uno de los aspectos abordados. Así se hace una revisión de las actividades socioculturales ligadas a las tertulias o a las sociedades económicas, las circunstancias educativas, la actividad desplegada por los obispos con la realización de infraestructuras o con un magisterio reformista en el plano de las lecturas, como Tavira, la producción de libros con alusión a la actividad impresora, los géneros literarios más cultivados y sus autores, las preferencias temáticas en poesía —género mayoritario—, en prosa y en teatro, y alusión a algunas de las bibliotecas particulares.

  10. The spatial analysis of the great leveling of Chichen Itza and its surrounding spaceEl análisis espacial de la Gran Nivelación de Chichén Itzá y su espacio circundante

    Directory of Open Access Journals (Sweden)

    Alexandre Guida Navarro

    2008-07-01

    Full Text Available This article aims to discuses the spatial relationships that we think to exist at the principal plaza of archaeological site of Chichén Itzá, and your relation with the environment. We also analyze the way that this great space is organized. This kind of analyses is realized with comparisons among the architecture and spatial organization of the structures on Great Terrace associated with others plazas of the archaeological zone.Este artículo tiene como objetivo discutir las relaciones espaciales que pensamos existir en la principal plaza del sitio de Chichén Itzá, la Gran Explanada, y su relación con el entorno. Se analiza la manera que la explanada se organiza en el espacio y buscase entender como la Gran Nivelación se emplaza en el medio circundante. Este tipo de análisis es logrado a través de la comparación del patrón de asentamiento, arquitectura y distribución espacial de los edificios de la explanada con otras plazas del sitio.

  11. Gestación y evolución de los paisajes vegetales del ámbito territorial del Jardín Canario. Barranco de Guiniguada. Gran Canaria

    Directory of Open Access Journals (Sweden)

    Antonio Javier Domínguez Medina

    2013-11-01

    Full Text Available La evolución del paisaje del barranco Guiniguada se aborda a partir de dos vías complementarias. En Ia primera se analizan las variables geomorfológica y climática: dc la interacción entre ellas resulta el paisaje natural original. En la segunda, tras la aparición humana, el análisis se centra en la interrelación hombre-medio natural desde el periodo prehispánico hasta el final del siglo XX. La clave argumental se fundamenta en las variaciones experimentadas por los paisaje vegetales, al tratarse de un factor, de evidente dinamismo, que refleja con nitidez las transformaciones experimentadas por el territorio objeto de estudio.The analysis of the evolution of the Bº Guiniguada landscape is based on two complementary factors. Firstly, the geomorphological and climatic variables are analysed, since the original natural landscape is the outcome of their interaction. Secondly, after humans appeared, the analysis has focused on the relation between huan and natural environment, from the time of the prehispanic population to the end of the 20th century. The arguments for all this are baced on the variations suffered by the vegetation landscape. This factor, which presents an obvious dynamism, clearly reflects the changes undergone by the target site.

  12. Analysis of Population Substructure in Two Sympatric Populations of Gran Chaco, Argentina

    Science.gov (United States)

    Sevini, Federica; Yao, Daniele Yang; Lomartire, Laura; Barbieri, Annalaura; Vianello, Dario; Ferri, Gianmarco; Moretti, Edgardo; Dasso, Maria Cristina; Garagnani, Paolo; Pettener, Davide; Franceschi, Claudio; Luiselli, Donata; Franceschi, Zelda Alice

    2013-01-01

    Sub-population structure and intricate kinship dynamics might introduce biases in molecular anthropology studies and could invalidate the efforts to understand diseases in highly admixed populations. In order to clarify the previously observed distribution pattern and morbidity of Chagas disease in Gran Chaco, Argentina, we studied two populations (Wichí and Criollos) recruited following an innovative bio-cultural model considering their complex cultural interactions. By reconstructing the genetic background and the structure of these two culturally different populations, the pattern of admixture, the correspondence between genealogical and genetic relationships, this integrated perspective had the power to validate data and to link the gap usually relying on a singular discipline. Although Wichí and Criollos share the same area, these sympatric populations are differentiated from the genetic point of view as revealed by Non Recombinant Y Chromosome genotyping resulting in significantly high Fst values and in a lower genetic variability in the Wichí population. Surprisingly, the Amerindian and the European components emerged with comparable amounts (20%) among Criollos and Wichí respectively. The detailed analysis of mitochondrial DNA showed that the two populations have as much as 87% of private haplotypes. Moreover, from the maternal perspective, despite a common Amerindian origin, an Andean and an Amazonian component emerged in Criollos and in Wichí respectively. Our approach allowed us to highlight that quite frequently there is a discrepancy between self-reported and genetic kinship. Indeed, if self-reported identity and kinship are usually utilized in population genetics as a reliable proxy for genetic identity and parental relationship, in our model populations appear to be the result not only and not simply of the genetic background but also of complex cultural determinants. This integrated approach paves the way to a rigorous reconstruction of

  13. La gran red: una era nueva entre la ciencia y el mito

    Directory of Open Access Journals (Sweden)

    María del Rosario Contepomi

    2007-03-01

    Full Text Available El propósito del trabajo es relacionar concepciones en torno al concepto red adoptadas por el movimiento espiritualista "Nueva Era" de la ciudad de Posadas, Misiones, Argentina, con aquellas planteadas por teóricos de la "Era de la Información y Comunicación" en el campo de las ciencias sociales. Dadas la complejidad y amplitud que se atribuye a esta noción, hemos denominado la Gran Red a esa construcción fáctica y virtual a la que se le asignan múltiples denominaciones: interconexión, interrelación, articulación. Estos complejos y heterogéneos vínculos se desarrollan entre elementos, dimensiones y niveles diferentes, tales como materialidad y espiritualidad, hombre y naturaleza, sociedad e individuo. Conforme a ello, nos preguntamos respecto a las creencias religiosas, creaciones ideológicas, producciones científicas o construcciones mitológicas que conforman el mundo-red de la cosmovisión la Nueva Era y la cultura-red de los enfoques socio-antropológicos.The purpose of this work is to relate conceptions around the concept of net adopted by the spiritualist movement "New Era" from the city of Posadas, Misiones, Argentina, with those considered by theorists of the "Era of Information and Communication" in the field of Social Sciences. Given the complexity and range that it is attributed to this notion we have designated the Great Net to that factual and virtual construction which is assigned multiple names: interconnection, interrelation, articulation. These complex and heterogeneous links develop among elements, dimensions and different levels, such as material nature and spirituality, man and nature, society and the individual. In accordance with that we ask ourselves regarding religious beliefs, ideological creations, scientific productions or mythological constructions that constitute the world-net of the view of the world of the New Era and the culture-net of the socio-anthropological approaches.

  14. La dramaturgia de Oscar Wilde, ejemplo paradigmático de la influencia y recepción del teatro francés en Gran Bretaña (1880-1895)

    OpenAIRE

    Ramos Gay, Ignacio

    2004-01-01

    RESUMEN La tesis doctoral tiene por objetivo analizar la influencia, recepción y subversión del teatro francés en Gran Bretaña durante el marco temporal acotado por 1880 y 1895, tomando como base inductiva la dramaturgia de Oscar Wilde. La estructura está articulada en torno a dos partes. La primera de ella tiene por fin desmitificar el concepto de degeneración dramática asociado al teatro inglés del siglo XIX y a las obras y autores franceses adaptados para los escenarios londinenses, rec...

  15. Conflicto y Modernización en la Gran Minería del Cobre (1950-1970

    Directory of Open Access Journals (Sweden)

    Ángela Vergara Marshall

    2004-12-01

    Full Text Available Este artículo analiza el proceso de modernización en la Gran Minería del Cobre en Chile entre 1950 y 1971. En primer lugar, se examinan las causas, nacionales e internacionales, que llevaron a las empresas del cobre a introducir cambios en la forma de producción, organización de la fuerza de trabajo y labores administrativas. En segundo lugar, se analiza el impacto que tuvo la modernización en las condiciones de vida y de trabajo de los mineros del cobre. En términos generales, este artículo plantea que aunque la modernización minera aumentó la productividad de esta industria, al mismo tiempo esta agudizó el conflicto laboral en la minería y deterioró la posición de las empresas del cobre en Chile.This article focuses on the process of modernization in the Large Scale Copper Industry between 1950 and 1971. First, it looks at the national and international factors that led copper companies to introduce substantial changes in the organization of production, the labor force, and administration. Second, it analyzes the impact of modernization on working, economic, and living conditions in the copper mines. In a time of increasing nationalism and political radicalization, these schemes not only led to intense confrontation with labor unions but also undermined the position of the US copper companies in Chile.

  16. Un Gran Señor e Inmejorable Profesor. Gonzalo Esguerra Gómez (24 de enero de 1902 – 21 de diciembre de 1989

    Directory of Open Access Journals (Sweden)

    Alberto Albornoz-Plata

    1991-06-01

    Full Text Available

    En esta sesión solemne de la Academia Nacional de Medicina, para recordar al ilustre académico Gonzalo Esguerra Gómez sólo me referiré en estos 15 minutos a algunas facetas de su prodigiosa personalidad, en especial su aspecto humano y su labor como gran docente y escritor médico. Su característica principal fué su gran caballerosidad, siempre afable, cordial, listo a prestar cualquier servicio y todo lo hacía con entusiasmo y optimismo.

    Su orden era proverbial y esa cualidad fue uno de los motivos para su éxito profesional; exacto en sus compromisos y si se presentaba algún inconveniente lo informaba con anterioridad, todo esto renejaba su pulcritud y educación exquisita.

    Mi primer recuerdo del académico Gonzalo Esguerra Gómez se remonta a mi niñez: era yo estudiante de primaria en el Colegio de la Presentación de Bogotá en los finales del año 20. Por alguna novedad dental, con sospecha de compromiso maxilar, mi tío el médico doctor Guillermo A1bornoz-López, famoso anestesiólogo de la Casa de Salud de Peña y más tarde de la Clínica del gran cirujano Pompilio Martínez, resolvió en asocio del doctor Tiberio Rojas, (antiguo académico clínico de gran renombre, solicitar al doctor Esguerra Gómez una radiografía de su pequeño paciente; grande fue mi asombro verme rodeado de máquinas muy extrañas que producían leve ruido de tipo ventilador y todo este examen fue sin dolor alguno.

    Nos unía a las dos familias, Albornoz-Plata y Esguerra Gómez un lazo familiar lejano pero de marcado sabor emocional y siempre de adm iración por el joven radiólogo recién llegado de Europa y que había instalado su consultorio en la Clínica de Marly; sus parientes muy cercanos, la familia Esguerra Plata (Domingo, Lola de Dupuy, Cristina y Josefina, eran las primas de mi madre, María Plata-Arroyo de Albornoz, que con frecuencia se visitaban y se comentaba con entusiasmo sobre este notable y exitoso radi

  17. Dilatación de la papila de Vater con balón de gran diámetro para la extracción de coledocolitiasis Large balloon dilation for removal of bile duct stones

    Directory of Open Access Journals (Sweden)

    J. Espinel

    2008-10-01

    Full Text Available Objetivo: valorar la eficacia y seguridad de la dilatación de la papila de Vater con balones de gran diámetro (BGD para la extracción de coledocolitiasis en pacientes con factores que dificultan o hacen peligrosa la extracción, por las características de los cálculos o de la anatomía peripapilar. Diseño: prospectivo. Pacientes: estudio que incluye 93 pacientes a los que se realizó dilatación hidrostática de la papila con balones de gran diámetro entre junio de 2005 y enero de 2008 por presentar cálculos de gran tamaño, múltiples, colédoco distal afilado, papila peri/intradiverticular, esfinterotomía previa o Billroth-II. Se emplearon dilatadores CRE de diámetros entre 12 y 20 mm. Resultados: se consiguió la extracción de los cálculos en una sesión en todos los pacientes (100%. La mayor parte de las exploraciones (86% no requirieron tiempos prolongados para la extracción. Se precisó litotricia en el 3,2%. Hubo dos complicaciones leves (2,1%. Se detectó hiperamilasemia en el 16% de los pacientes. Conclusiones: la dilatación de la papila de Vater con balón de gran diámetro es una técnica eficaz y segura en la extracción de cálculos difíciles de la vía biliar, sin incrementar el tiempo de la exploración, ni las complicaciones, evitando la necesidad de litotricia en la mayoría de los pacientes.Aim: to assess the efficacy and safety of dilatation of the papilla of Vater with large balloons for the treatment of choledocolithiasis in patients with difficult or risky extraction due to stone characteristics or peripapillary anatomy. Design: prospective. Patients: this study includes 93 patients in whom large-balloon dilation was performed between June 2005 and January 2008. Patients had multiple large stones, tapered distal CBD (common bile duct, peri-/intra-diverticular papilla, and previous sphincterotomy or Billroth-II surgery. A controlled radial expansion (CRE balloon with a diameter range of 12-20 mm was used

  18. Avance de la interpretación Geotectónica del emplazamiento del plutón granítico de Madridejos (Toledo, basada en determinaciones gravimétricas

    Directory of Open Access Journals (Sweden)

    Berjamín, J. F.

    1986-10-01

    Full Text Available The outcrops and subsurface geometry of Madridejos granitic body, has been studied using gravimetric and geological methods.
    This pluton is emplaced in a border of Urda-Consuegra antiform, this structure is high modification in the border where the pluton is emplaced.

    En función de datos gravimétricos y geológicos se establecen los límites del plutón granítico de Madridejos, tanto superficialmente como en profundidad.
    Este plutón se aloja en un extremo del domo de Urda-Consuegra, estructura a la que modifica sustancialmente.

  19. Estimación de la prevalencia del trastorno por déficit de atención con o sin hiperactividad (TDAH en población escolar de la Comunidad Autónoma de Canarias

    Directory of Open Access Journals (Sweden)

    Juan E. Jiménez

    2012-06-01

    Full Text Available Este estudio ha tenido por finalidad determinar la prevalencia del Trastorno por Déficit de Atención con o sin Hiperactividad (TDAH en la Comunidad Autónoma de Canarias, en la población de 6 a 12 años. Para ello, el muestreo utilizado fue polietápico estratificado y proporcional por conglomerados. Los estratos fueron el tipo de colegio, la y el nivel educativo, y los conglomerados fueron los colegios. A partir de una muestra de estudio de 118.467 alumnos escolarizados en centros ordinarios, se obtuvo una muestra al azar de 2.395 alumnos. Se utilizaron las escalas Attention-Deficit/Hiperactivity Disorder Rating Scales IV (ADHD RS-IV modificadas para padres y maestros. Se encontró una tasa global de prevalencia del 4.9%, de los cuales el 3.1% fueron del subtipo inatento, el 1.1% hiperactivo, y el 0.7% combinado. Solo se encontraron diferencias significativas en función del sexo, donde la incidencia fue superior en varones. Las implicaciones educativas y socio sanitarias de los hallazgos encontrados nos sugieren la importancia de llevar a cabo una identificación, diagnóstico y tratamiento temprano, lo que ayudará a que los niños identificados con TDAH puedan desarrollar todo su potencial, y con ello una reducción importante del gasto público.

  20. Petroleum products. LPG-c is taking off; Produits petroliers. Le decollage du GPL-c

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    A strong tax reduction and other financial incentives for liquefied petroleum gas, have stimulated LPG consumption in France, with a 60 pc increase between 1995 and 1996. LPG fuels allow for an important reduction in polluting emissions. Other news are presented, which concern the French Petroleum Institute strategy and financing, European regulations on fuel quality, the issue of the decreasing number of service stations in France, new production sites for bio-fuels, issues with petroleum investment international embargoes, the privatization of Elf-Aquitaine, the 1996 truck driver strike, and the Goa international conference between energy producer and user countries

  1. Petroleum products. LPG-c is taking off; Produits petroliers. Le decollage du GPL-c

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    A strong tax reduction and other financial incentives for liquefied petroleum gas, have stimulated LPG consumption in France, with a 60 pc increase between 1995 and 1996. LPG fuels allow for an important reduction in polluting emissions. Other news are presented, which concern the French Petroleum Institute strategy and financing, European regulations on fuel quality, the issue of the decreasing number of service stations in France, new production sites for bio-fuels, issues with petroleum investment international embargoes, the privatization of Elf-Aquitaine, the 1996 truck driver strike, and the Goa international conference between energy producer and user countries

  2. Derivation of P-T paths from high-pressure metagranites - Examples from the Gran Paradiso Massif, western Alps

    Science.gov (United States)

    Massonne, Hans-Joachim

    2015-06-01

    Metamorphosed granites (SiO2 ≥ 70 wt.%) are, in fact, a common rock type in high pressure (HP) and ultrahigh pressure (UHP) terrains, but these rocks were rarely used to derive metamorphic P-T paths. To test the suitability of HP metagranites for such derivations, two metagranites from the Gran Paradiso Massif were studied applying elemental mapping of phengite and garnet and calculated P-T pseudosections contoured by various chemical and modal parameters. Both rocks contain phengite with maximum Si contents of about 3.42 Si per formula unit (pfu) and 3.55 Si pfu in cores, and accessory garnet which is compositionally zoned. Garnet core compositions are rich in grossular component (XCa up to 0.72). Only a rough P-T path could be derived with peak pressures below 2 GPa because, for instance, Si contents in phengite become geobarometrically insensitive at HP conditions, when biotite is not anymore stable. A test of the pseudosection approach to a metagranite from the North Qaidam UHP metamorphic belt resulted in an ambiguous finding. In fact, compositions of garnet and phengite in this rock are indicative of both UHP and specific HP conditions ( 1.3 GPa, 530 °C), but the latter conditions fit the entire mineralogical observations better.

  3. El municipio de Pajapan en la Sierra de Santa Marta (Veracruz, México: un caso de resistencia indígena en la defensa del territorio y los recursos naturales para la sustentabilidad de los pueblos originarios del Gran Caribe.

    Directory of Open Access Journals (Sweden)

    Jesús Moreno Arriba

    2015-01-01

    Full Text Available El municipio de Pajapan, en la Sierra de Santa Marta (Veracruz, México, representa un caso paradigmático en la lucha por la defensa de las tierras comunales de las comunidades indígenas campesinas del Gran Caribe, recurriendo a distintos mecanismos de resistencia. Además, desde la implementación de metodología de investigación cualitativa, como la revisión bibliográfica y documental del tema de estudio, este trabajo ha identificado y analizado diversos proyectos de gestión de recursos naturales en el entorno geográfico de Pajapan y la Sierra de Santa Marta. Estas emergentes experiencias no gubernamentales se presentan como un posible modelo de desarrollo alternativo para intentar contribuir a mejorar la precaria situación actual (ecológica, demográfica y socioeconómica de los territorios tropicales y pueblos indígenas mesoamericanos del Gran Caribe.

  4. Langerhans cell histiocytosis or tuberculosis on a medieval child (Oppidum de la Granède, Millau, France - 10th-11th centuries AD).

    Science.gov (United States)

    Colombo, Antony; Saint-Pierre, Christophe; Naji, Stephan; Panuel, Michel; Coqueugniot, Hélène; Dutour, Olivier

    2015-06-01

    In 2008, a skeleton of a 1 - 2.5-year-old child radiocarbon dated from the 10th - 11th century AD was discovered on the oppidum of La Granède (Millau, France). It presents multiple cranial osteolytic lesions having punched-out or geographical map-like aspects associated with sequestrum and costal osteitis. A multi 3D digital approach (CT, μCT and virtual reconstruction) enabled us to refine the description and identify the diploic origin of the lytic process. Furthermore, precise observation of the extent of the lesions and associated reorganization of the skeletal micro-structure were possible. From these convergent pieces of evidence, the differential diagnosis led to three possibilities: Langerhans cell histiocytosis, tuberculosis, or Langerhans cell histiocytosis and tuberculosis. Copyright © 2015 Elsevier Ltd. All rights reserved.

  5. LOCALIZED STARBURSTS IN DWARF GALAXIES PRODUCED BY THE IMPACT OF LOW-METALLICITY COSMIC GAS CLOUDS

    International Nuclear Information System (INIS)

    Sánchez Almeida, J.; Muñoz-Tuñón, C.; Filho, M. E.; Elmegreen, B. G.; Elmegreen, D. M.; Pérez-Montero, E.; Vílchez, J. M.; Amorín, R.; Ascasibar, Y.; Papaderos, P.

    2015-01-01

    Models of galaxy formation predict that gas accretion from the cosmic web is a primary driver of star formation over cosmic history. Except in very dense environments where galaxy mergers are also important, model galaxies feed from cold streams of gas from the web that penetrate their dark matter halos. Although these predictions are unambiguous, the observational support has been indirect so far. Here, we report spectroscopic evidence for this process in extremely metal-poor galaxies (XMPs) of the local universe, taking the form of localized starbursts associated with gas having low metallicity. Detailed abundance analyses based on Gran Telescopio Canarias optical spectra of 10 XMPs show that the galaxy hosts have metallicities around 60% solar, on average, while the large star-forming regions that dominate their integrated light have low metallicities of some 6% solar. Because gas mixes azimuthally in a rotation timescale (a few hundred Myr), the observed metallicity inhomogeneities are only possible if the metal-poor gas fell onto the disk recently. We analyze several possibilities for the origin of the metal-poor gas, favoring the metal-poor gas infall predicted by numerical models. If this interpretation is correct, XMPs trace the cosmic web gas in their surroundings, making them probes to examine its properties

  6. LOCALIZED STARBURSTS IN DWARF GALAXIES PRODUCED BY THE IMPACT OF LOW-METALLICITY COSMIC GAS CLOUDS

    Energy Technology Data Exchange (ETDEWEB)

    Sánchez Almeida, J.; Muñoz-Tuñón, C.; Filho, M. E. [Instituto Astrofísica de Canarias, E-38200 La Laguna, Tenerife (Spain); Elmegreen, B. G. [IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598 (United States); Elmegreen, D. M. [Department of Physics and Astronomy, Vassar College, Poughkeepsie, NY 12604 (United States); Pérez-Montero, E.; Vílchez, J. M. [Instituto de Astrofísica de Andalucía, CSIC, Granada (Spain); Amorín, R. [INAF-Osservatorio Astronomico di Roma, Monte Porzio Catone (Italy); Ascasibar, Y. [Universidad Autonoma de Madrid, Madrid (Spain); Papaderos, P., E-mail: jos@iac.es [Centro de Astrofísica da Universidade do Porto, Porto (Portugal)

    2015-09-10

    Models of galaxy formation predict that gas accretion from the cosmic web is a primary driver of star formation over cosmic history. Except in very dense environments where galaxy mergers are also important, model galaxies feed from cold streams of gas from the web that penetrate their dark matter halos. Although these predictions are unambiguous, the observational support has been indirect so far. Here, we report spectroscopic evidence for this process in extremely metal-poor galaxies (XMPs) of the local universe, taking the form of localized starbursts associated with gas having low metallicity. Detailed abundance analyses based on Gran Telescopio Canarias optical spectra of 10 XMPs show that the galaxy hosts have metallicities around 60% solar, on average, while the large star-forming regions that dominate their integrated light have low metallicities of some 6% solar. Because gas mixes azimuthally in a rotation timescale (a few hundred Myr), the observed metallicity inhomogeneities are only possible if the metal-poor gas fell onto the disk recently. We analyze several possibilities for the origin of the metal-poor gas, favoring the metal-poor gas infall predicted by numerical models. If this interpretation is correct, XMPs trace the cosmic web gas in their surroundings, making them probes to examine its properties.

  7. Decadal changes in the structure of Cymodocea nodosa seagrass meadows: Natural vs. human influences

    Science.gov (United States)

    Tuya, Fernando; Ribeiro-Leite, Luís; Arto-Cuesta, Noelia; Coca, Josep; Haroun, Ricardo; Espino, Fernando

    2014-01-01

    Seagrass meadows are deteriorating worldwide. However, numerous declines are still unreported, which avoid accurate evaluations of seagrass global trends. This is particularly relevant for the western African coast and nearby oceanic archipelagos in the eastern Atlantic. The seagrass Cymodocea nodosa is an 'ecological engineer' on shallow soft bottoms of the Canary Islands. A comparative decadal study was conducted in 21 C. nodosa seagrass meadows at Gran Canaria Island to compare the structure (shoot density, leaf length and cover) between 2003 and 2012. Overall, 11 meadows exhibited a severe regression, while 10 remained relatively stable. During this period, natural influences (sea surface temperature, Chlorophyll-a concentration and PAR light, as well as the number of storm episodes detaching seagrasses) had a low predictive power on temporal patterns in seagrass structure. In contrast, proximity from a range of human-mediated influences (e.g. the number of outfalls and ports) seem to be related to the loss of seagrass; the rate of seagrass erosion between 2003 and 2012 was significantly predicted by the number of human-mediated impacts around each meadow. This result highlights promoting management actions to conserve meadows of C. nodosa at the study region through efficient management of local impacts.

  8. An Optical View of Extragalactic γ-Ray Emitters

    Energy Technology Data Exchange (ETDEWEB)

    Paiano, Simona [Osservatorio Astronomico di Padova (INAF), Padua (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Padua (Italy); Falomo, Renato [Osservatorio Astronomico di Padova (INAF), Padua (Italy); Landoni, Marco [Osservatorio Astronomico di Brera (INAF), Merate (Italy); Treves, Aldo [Università degli Studi dell' Insubria, Varese (Italy); Scarpa, Riccardo, E-mail: simona.paiano@oapd.inaf.it [Instituto de Astrofísica de Canarias, Santa Cruz de Tenerife (Spain); Departamento de Astrofsica, Universidad de La Laguna, San Cristóbal de La Laguna (Spain)

    2017-11-23

    The Fermi Gamma-ray Observatory discovered about a thousand extragalactic sources emitting energy from 100 MeV to 100 GeV. The majority of these sources belong to the class of blazars characterized by a quasi-featureless optical spectrum (BL Lac Objects). This hampers the determination of their redshift and therefore hinders the characterization of this class of objects. To investigate the nature of these sources and to determine their redshift, we are carrying out an extensive campaign using the 10 m Gran Telescopio Canarias to obtain high S/N ratio optical spectra. These observations allow us to confirm the blazar nature of the targets, to find new redshifts or to set stringent limits on the redshift based on the minimum equivalent width of specific absorption features that can be measured in the spectrum and are expected from their host galaxy, assuming it is a massive elliptical galaxy. These results are of importance for the multi-frequencies emission models of the blazars, to test their extreme physics, to shed light on their cosmic evolution and abundance in the far Universe. These gamma emitters are also of great importance for the characterization of the extragalactic background light through the absorption by the IR-optical background photons.

  9. Ichthyoplankton transport from the African coast to the Canary Islands

    Science.gov (United States)

    Brochier, Timothée; Mason, Evan; Moyano, Marta; Berraho, Amina; Colas, Francois; Sangrà, Pablo; Hernández-León, Santiago; Ettahiri, Omar; Lett, Christophe

    2011-08-01

    The Canary Upwelling System (CUS), a major eastern boundary upwelling system, sustains large cross-border fisheries of small pelagic fish, which poses the question of stock connectivity. Studies suggest that ichthyoplankton transport from the northwest African coast to the Canary Islands (CI) is facilitated by coastal-upwelling associated filaments. Here we analyze connections between larval supply to the CI and sardine and anchovy populations that spawn over the continental shelf. For both species, ichthyoplankton observations (1) at the shelf and (2) near the island of Gran Canaria (GC) are used. Predictions of ichthyoplankton transport to GC are obtained from the Ichthyop Lagrangian transport model, which is forced by a high-resolution hydrodynamic model (ROMS) that reproduces the regional circulation. Results show that upwelling filaments play an important role in the transport of larvae to GC. However, (1) filaments are not the only mechanism, and (2) filament presence does not necessarily imply larval transport. Anchovy and sardine larval presence at GC appears to be independent of the respective adult spawning seasonality. Combining of observed and modeled data does not succeed in reproducing the observed larval patterns at GC. Various hypotheses are proposed to explain this discrepancy in larval transport to GC.

  10. An integrated thermo-structural model to design a polarimeter for the GTC

    Science.gov (United States)

    Di Varano, I.; Strassmeier, K. G.; Woche, M.; Laux, U.

    2016-07-01

    The GTC (Gran Telescopio Canarias), with an equivalent aperture of 10.4 m, effective focal length of 169.9 m, located at the Observatorio del Roque de los Muchachos , in La Palma, Canary Islands, will host on its Cassegrain focus the GRAPE polarimeter (GRAntecan PolarimEter). At such focus the plate scale is 1.21 arcsec/mm and the unvignetted FOV 8 arcmin. The instrument will provide full Stokes polarimetry in the spectral range 380-1500 nm, feeding simultaneously up to two spectrographs. At the moment an interface to HORS (High Optical Resolution Spectrograph) is being defined, located on the Nasmyth platform, it has a FWHM resolving power of about 25,000 (5 pixel) within a spectral range of 400-680 nm. The rotator and instrumental flanges for the Cassegrain focus are currently under definition. Hereafter I present the state of art of the mechanical design of the polarimeter, whose strategy is based on an integrated model of Zemax design into ANSYS FEM static and dynamic analyses with thermal loads applied, in order to retrieve tip-tilt, decentering errors and other significant parameters to be looped back to the Zemax model. In such a way it is possible to compare and refine the results achieved through the tolerance analysis.

  11. Divulgación del Programa Consolider-GTC

    Science.gov (United States)

    Ruiz Zelmanovitch, N.; Mass Hesse, M.; Alfaro, E.

    2013-05-01

    The Gran Telescopio Canarias (GTC) is the biggest telescope of its class in the world. The CONSOLIDER INGENIO 2010-GTC project, First Science with the GTC: Spanish Astron- omy on the Forefront of the European Astronomy, funded by the Spanish Ministry of Science and Innovation, MICINN (now the Ministry of Economy and competitiveness, MINECO) has used the GTC to: (i) obtain leading science with its data, (ii) increase the involvement of the Spanish astronomical community in developing astronomical instrumentation, (iii) get an important Spanish participation in the new extremely large telescopes generation (ELTs), and (iv) make outreach and communicating to the society the main results. The project CONSOLIDER INGENIO 2010-GTC is structured and defined by objectives: 1) GTC: To optimize the GTC and its instruments; 2) SCIENCE: To develop leading science with the GTC; 3) E-ELT: To take advantage of the technological experience obtained with the GTC for the new generation of giant telescopes; 4) INSTRUMENTATION: To promote the Spanish participation in the new instrument developments for the GTC, VLT and the future ELTs; 5) EDUCATION: International School for Advanced Instrumentation (IScAI); and 6) OUTREACH: Outreach and communication of the project scientific results. This poster resumes five years of science communication around the Consolider-GTC project.

  12. Observations of the planetary nebula RWT 152 with OSIRIS/GTC

    Science.gov (United States)

    Aller, A.; Miranda, L. F.; Olguín, L.; Solano, E.; Ulla, A.

    2016-11-01

    RWT 152 is one of the few known planetary nebulae with an sdO central star. We present subarcsecond red tunable filter Hα imaging and intermediate-resolution, long-slit spectroscopy of RWT 152 obtained with OSIRIS/GTC (Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy/Gran Telescopio Canarias) with the goal of analysing its properties. The Hα image reveals a bipolar nebula with a bright equatorial region and multiple bubbles in the main lobes. A faint circular halo surrounds the main nebula. The nebular spectra reveal a very low excitation nebula with weak emission lines from H+, He+ and double-ionized metals, and absence of emission lines from neutral and single-ionized metals, except for an extremely faint [N II] λ6584 emission line. These spectra may be explained if RWT 152 is a density-bounded planetary nebula. Low nebular chemical abundances of S, O, Ar, N and Ne are obtained in RWT 152, which, together with the derived high peculiar velocity (˜ 92-131 km s-1), indicate that this object is a halo planetary nebula. The available data are consistent with RWT 152 evolving from a low-mass progenitor (˜1 M⊙) formed in a metal-poor environment.

  13. The origin of the mid-infrared nuclear polarization of active galactic nuclei

    Science.gov (United States)

    Lopez-Rodriguez, E.; Alonso-Herrero, A.; Diaz-Santos, T.; Gonzalez-Martin, O.; Ichikawa, K.; Levenson, N. A.; Martinez-Paredes, M.; Nikutta, R.; Packham, C.; Perlman, E.; Almeida, C. Ramos; Rodriguez-Espinosa, J. M.; Telesco, C. M.

    2018-05-01

    We combine new (NGC 1275, NGC 4151, and NGC 5506) and previously published (Cygnus A, Mrk 231, and NGC 1068) sub-arcsecond resolution mid-infrared (MIR; 8-13 μm) imaging- and spectro-polarimetric observations of six Seyfert galaxies using CanariCam on the 10.4-m Gran Telescopio CANARIAS. These observations reveal a diverse set of physical processes responsible for the nuclear polarization, and permit characterization of the origin of the MIR nuclear polarimetric signature of active galactic nuclei (AGN). For all radio quiet objects, we found that the nuclear polarization is low (sensitivity to detect such extended emission (i.e., NGC 1068 and NGC 4151). We suggest that the higher degree of polarization previously found in lower resolution data arises only on the larger-than-nuclear scales. Only the radio-loud Cygnus A exhibits significant nuclear polarization (˜11 per cent), attributable to synchrotron emission from the pc-scale jet close to the core. We present polarization models that suggest that the MIR nuclear polarization for highly obscured objects arises from a self-absorbed MIR polarized clumpy torus and/or dichroism from the host galaxy, while for unabsorbed cores, MIR polarization arises from dust scattering in the torus and/or surrounding nuclear dust.

  14. Major risk from rapid, large-volume landslides in Europe (EU Project RUNOUT)

    Science.gov (United States)

    Kilburn, Christopher R. J.; Pasuto, Alessandro

    2003-08-01

    Project RUNOUT has investigated methods for reducing the risk from large-volume landslides in Europe, especially those involving rapid rates of emplacement. Using field data from five test sites (Bad Goisern and Köfels in Austria, Tessina and Vajont in Italy, and the Barranco de Tirajana in Gran Canaria, Spain), the studies have developed (1) techniques for applying geomorphological investigations and optical remote sensing to map landslides and their evolution; (2) analytical, numerical, and cellular automata models for the emplacement of sturzstroms and debris flows; (3) a brittle-failure model for forecasting catastrophic slope failure; (4) new strategies for integrating large-area Global Positioning System (GPS) arrays with local geodetic monitoring networks; (5) methods for raising public awareness of landslide hazards; and (6) Geographic Information System (GIS)-based databases for the test areas. The results highlight the importance of multidisciplinary studies of landslide hazards, combining subjects as diverse as geology and geomorphology, remote sensing, geodesy, fluid dynamics, and social profiling. They have also identified key goals for an improved understanding of the physical processes that govern landslide collapse and runout, as well as for designing strategies for raising public awareness of landslide hazards and for implementing appropriate land management policies for reducing landslide risk.

  15. A mitochondrial analysis reveals distinct founder effect signatures in Canarian and Balearic goats.

    Science.gov (United States)

    Ferrando, A; Manunza, A; Jordana, J; Capote, J; Pons, A; Pais, J; Delgado, T; Atoche, P; Cabrera, B; Martínez, A; Landi, V; Delgado, J V; Argüello, A; Vidal, O; Lalueza-Fox, C; Ramírez, O; Amills, M

    2015-08-01

    In the course of human migrations, domestic animals often have been translocated to islands with the aim of assuring food availability. These founder events are expected to leave a genetic footprint that may be recognised nowadays. Herewith, we have examined the mitochondrial diversity of goat populations living in the Canarian and Balearic archipelagos. Median-joining network analysis produced very distinct network topologies for these two populations. Indeed, a majority of Canarian goats shared a single ancestral haplotype that segregated in all sampled islands, suggesting a single founder effect followed by a stepping-stone pattern of diffusion. This haplotype also was present in samples collected from archaeological assemblies at Gran Canaria and Lanzarote, making evident its widespread distribution in ancient times. In stark contrast, goats from Majorca and Ibiza did not share any mitochondrial haplotypes, indicating the occurrence of two independent founder events. Furthermore, in Majorcan goats, we detected the segregation of the mitochondrial G haplogroup that has only been identified in goats from Egypt, Iran and Turkey. This finding suggests the translocation of Asian and/or African goats to Majorca, possibly as a consequence of the Phoenician and Carthaginian colonisations of this island. © 2015 Stichting International Foundation for Animal Genetics.

  16. Morphological and molecular study of the cyanobiont-bearing dinoflagellate Sinophysis canaliculata from the Canary Islands (eastern central Atlantic).

    Science.gov (United States)

    García-Portela, María; Riobó, Pilar; Rodríguez, Francisco

    2017-04-01

    The presence of the benthic dinophysoid dinoflagellate Sinophysis canaliculata has been reported in the Canary Islands (eastern central Atlantic) in live field observations and on fixed macroalgal samples from intertidal ponds (26 sampling sites from El Hierro, Tenerife, Gran Canaria, Fuerteventura and Lanzarote islands). In vivo Sinophysis cells were typically pale pink colored. Light microscopy and scanning electron microscopy micrographs showed a small characteristic narrow hypothecal cut that matched the original description of S. canaliculata. SSU rRNA gene (rDNA) nuclear phylogeny showed that S. canaliculata is closely related to S. microcephalus. Sinophysis specimens displayed cyanobacterial endosymbionts with orange autofluorescence from phycoerythrins. SSU rDNA analyses of the cyanobionts nearly matched a former sequence obtained from S. canaliculata in the Pacific Ocean (Japan). S. canaliculata survived up to 5 months in the original seawater samples. During that period cyanobionts were always present and maintained their orange autofluorescence, although the pink color gradually vanished (<1 month) in most individuals. Molecular similarity of Sinophysis cyanobionts from the Canary Islands and Japanese waters suggest a deterministic relationship, likely a temporary maintenance inside their host via some specific grazing system. © 2016 Phycological Society of America.

  17. Development of a sensitive determination method for benzotriazole UV stabilizers in enviromental water samples with stir bar sorption extraction and liquid desorption prior to ultra-high performance liquid chromatography with tandem mass spectrometry.

    Science.gov (United States)

    Montesdeoca-Esponda, Sarah; del Toro-Moreno, Adrián; Sosa-Ferrera, Zoraida; Santana-Rodríguez, José Juan

    2013-07-01

    Benzotriazole UV stabilizers are emerging compounds used in personal care products and can enter surface water after passing through wastewater treatment plants without being removed. Because these analytes are strongly hydrophobic, there is an environmental risk of accumulation in solid matrices and magnification through the trophic chain. In this work, a method based on stir bar sorption extraction with liquid desorption is presented for the extraction of benzotriazole UV stabilizers from water samples. Stir bar sorptive extraction was combined with ultra-high performance LC with MS/MS detection. All important factors affecting the stir bar sorptive extraction procedure are discussed, and the optimized method was applied to seawater and wastewater samples from Gran Canaria Island, providing good selectivity and sensitivity with LODs and limits of quantification in the range of 18.4-55.1 and 61.5-184 ng/L, respectively. Recoveries between 68.4-92.2% were achieved for the more polar compounds, whereas the recoveries were lower for the two less polar compounds, most likely due to their strong absorption into the polydimethylsiloxane stir bar phase that does not allows the complete desorption. The repeatability studies gave RSDs of between 6.45 and 12.6% for all compounds in the real samples. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  18. GTC/OSIRIS SPECTROSCOPIC IDENTIFICATION OF A FAINT L SUBDWARF IN THE UKIRT INFRARED DEEP SKY SURVEY

    International Nuclear Information System (INIS)

    Lodieu, N.; Osorio, M. R. Zapatero; MartIn, E. L.; Solano, E.; Aberasturi, M.

    2010-01-01

    We present the discovery of an L subdwarf in 234 deg 2 common to the UK InfraRed Telescope (UKIRT) Infrared Deep Sky Survey Large Area Survey Data Release 2 and the Sloan Digital Sky Survey Data Release 3. This is the fifth L subdwarf announced to date, the first one identified in the UKIRT Infrared Deep Sky Survey, and the faintest known. The blue optical and near-infrared colors of ULAS J135058.86+081506.8 and its overall spectra energy distribution are similar to the known mid-L subdwarfs. Low-resolution optical (700-1000 nm) spectroscopy with the Optical System for Imaging and low Resolution Integrated Spectroscopy spectrograph on the 10.4 m Gran Telescopio de Canarias reveals that ULAS J135058.86+081506.8 exhibits a strong K I pressure-broadened line at 770 nm and a red slope longward of 800 nm, features characteristics of L-type dwarfs. From direct comparison with the four known L subdwarfs, we estimate its spectral type to be sdL4-sdL6 and derive a distance in the interval 94-170 pc. We provide a rough estimate of the space density for mid-L subdwarfs of 1.5 x 10 -4 pc -3 .

  19. Young adolescents, tobacco advertising, and smoking.

    Science.gov (United States)

    Santana, Yolanda; González, Beatriz; Pinilla, Jaime; Calvo, Jose Ramon; Barber, Patricia

    2003-01-01

    In adolescents aged 12-14, we measured attitudes to tobacco advertising. Our purpose is to understand the relation of these attitudes to tobacco use and identify the groups most influenced by the advertising. Survey of adolescents on Gran Canaria Island, Spain, about aspects of family, school, peers, tobacco consumption, and tobacco advertising. The subjects of the double-stratified cluster sample were 1910 students at the same grade level in 33 schools; 86.6% were 13 or 14 years old, and 51.2% were boys. We generated measures for attitudes to tobacco advertising from replies to seven questions with ordinal scales by an analysis of categorical principal components. To relate attitude to tobacco advertising and the profiles of these adolescents, we used multiple regression and logistic regression models. Attitudes to tobacco advertising are related to some home and school factors, but most significantly to tobacco and alcohol consumption, to amount of time at home without adults, and to peer influence. It is possible to draw up profiles of the students most vulnerable to tobacco advertising, and to cluster them in two groups, the "vitalists" and the "credulous." The effect of cigarette ads is different between these groups. This study can help to orientate smoking prevention.

  20. Gestión de la innovación y el desarrollo tecnológico en la gran minería a tajo abierto del Perú: estudio de casos

    OpenAIRE

    Carrasco Merma, Yannick Patrick

    2015-01-01

    La minería constituye uno de los principales sectores de la industria peruana. Su considerable aporte tanto al PBI como a la balanza comercial, sus proyectos de exploración y de integración con otros sectores y la gran proyección de su producción a futuro como consecuencia de las reservas minerales descubiertas; determina su atractivo. En particular, la actividad minera que ha aportado mayores beneficios a la balanza comercial ha sido del tipo de extracción a Tajo Abierto, corr...